The utility model provides a cutting head of a pair of endoscopic cutting tube tongs. The cutting head comprises a cutter rest (1) and a blade (2) arranged on the cutter rest (1), wherein the cutter rest comprises a cutter groove (11) formed by the lateral wall and a limit step (12) arranged in the cutter groove and used for limiting displacement of the blade, and first positioning holes (13) are symmetrically formed in two lateral walls of the cutter groove. A positioning pin (14) penetrates through the positioning holes to fix the blade. The tail of the blade is positioned through a gap, and a cutting length of the cutting edge is effectively increased. The shape of the cutting edge facilitates machining, and machining cost is reduced. By means of the integral cutter rest, machining time is shortened effectively, and production cost is reduced.

An endoscopic inner pipe cutting pliers head, including turret (I) and set the blade on the tool holder (2), characterized in that said cartridge includes a knife channel (11 formed by sidewalls ), provided in the blade slot and the blade displacement limit stop step (12); said sipes disposed symmetrically on both side walls also have a first positioning hole (13); through said positioning hole and the fixed blade positioning pin (14).
2. The head according to claim 1, characterized in that the blade (2) comprises a knife blade (21) and blade (22), the cutting edge throughout the length of the blade edge.
3. The head according to claim 2, characterized in that said one end is provided with a knife blade knife slot limit step (12) matches the notch (23).
The head according to claim 1, characterized in that said sipes does not include limiting hole and stop pin.
5. The head according to claim 1, characterized in that said rear positioning hole (13) in said toolholder.
6. The head according to claim 1, characterized in that the blade (2) is provided with the first positioning hole (13) to match the second positioning holes (24).
7. The head according to claim 6, characterized in that the blade (2) of the blade (22) located at one end of the positioning hole arc transition.
8. A head according to claim 1, characterized in that said cutting edge (22) further includes a fitting hole (221).

An internal endoscopic pipe cutting pliers head

Technical Field

[0001] The invention relates to the field of medical devices, and more particularly, to an endoscopic pipe cutting pliers tip.

Background

[0002] Endoscopic pipe cutting pliers is nearly 1 - 2 years, emerging endoscopic products subsidiary, to cut off the endoscopic surgery into the body and easy to cut excess tube or medical devices as the main purpose. Endoscopic existing pipe cutting pliers toolholder secondary processing and assembly stop pin together.

[0003] The prior art endoscopic pipe cutting pliers holder and blade tip by the composition, the blade holder and positioning pin connection, but the blade of the knife holder also has a hole through the installation of stop pin limit conduct blade limit.

[0004] However, the limit on the turret open access hole and through the second installation stop pin so that the tip mounting tedious process inconvenient. And the prior art blade is carried out through the front limit gaps and limit sales, not only reduces the effective cutting area, and because the blade edge portion has a notch below the high profiled blade processing requirements.

DISCLOSURE

[0005] In view of this, the utility model provides an endoscopic pipe cutting pliers heads for beneficial process, reducing processing costs.

[0006] To achieve the above object, the present utility model provides the following technical solutions:

[0007] An endoscopic cutting pipe wrench head, including turret (I) and set the blade on the tool holder (2),

[0008] The blade holder comprises a blade groove (11) formed by the side walls, and a groove provided in the knife blade to limit the displacement of the stepped stopper (12); said side walls also symmetrical sipes It is provided with a first positioning hole (13);

[0009] through the positioning hole and the positioning pin fixed to said blade (14).

[0010] Preferably, the blade (2) comprises a knife blade (21) and blade (22), the cutting edge throughout the length of the blade edge.

[0011] Preferably, the knife blade at one end is provided with a knife slot limit level (12) matches the gap (23).

[0012] Preferably, said sipes does not include limiting hole and stop pin.

[0013] Preferably, said positioning hole (13) located at the rear of the toolholder.

[0014] Preferably, the blade set (2) is provided with the first positioning hole (13) to match the second positioning holes (24).

[0015] Preferably, the blade (2) of the blade (22) located at one end of the positioning hole arc transition.

[0016] Preferably, the cutting edge (22) further includes a fitting hole (221).

[0017] The endoscopic pipe cutting pliers tip utility model, including the turret (I) and set the blade on the tool holder (2), the blade holder including knife groove formed by sidewalls ( 11), disposed in the knife blade slot and limiting the displacement of the stepped stopper (12); said sipes disposed symmetrically on both side walls also have a first positioning hole (13); passing through said positioning said blade hole and fixed positioning pin (14). The utility model provides the tail blade through the gap position, effectively increasing the length of the cutting blade; the shape of the blade is more conducive to processing, reduce processing costs. One-piece knife holder, effectively reducing the processing time and reduce production costs. Brief Description

[0018] In order to more clearly illustrate the utility model embodiments or the prior art technical solutions, the following example will be the implementation of the accompanying drawings or described in the prior art requires the use of a simple introduction, Obviously, the description below The drawings are merely the utility model some embodiments, those of ordinary skill in terms of creative effort without precondition, you can also obtain other drawings based on these drawings.

[0019] FIG. 1 embodiment of the present utility model provides endoscopic pipe cutting pliers head structure diagram;

[0020] FIG. 2 is within the prior art endoscopic pipe cutting pliers tip turret schematic;

Endoscopic [0021] FIG. 3 is a utility model provided by the embodiment of the turret head pipe cutting pliers schematic;

Endoscopic [0022] FIG. 4 embodiment of the present utility model provides a cross sectional view cut pipe clamp toolholder tip;

[0023] FIG. 5 is a prior art endoscopic pipe cutting pliers blade tip schematic;

Endoscopic pipe cutting pliers blade tip schematic [0024] FIG. 6 embodiment of the present utility model provides.

DETAILED DESCRIPTION

[0025] The utility model discloses an endoscopic pipe cutting pliers cutters, inserts the tail through the gap position, effectively increasing the length of the cutting blade; the shape of the blade is more conducive to processing, reduce processing costs. One-piece knife holder, effectively reducing the processing time and reduce production costs.

[0026] The invention will now be combined with the new embodiment of the drawings, an embodiment of the present utility model technical program clear, complete description of embodiments, it is clear that the described embodiments are only part of the utility model, rather than all embodiments. Based on the utility model embodiment, all other embodiments by those of ordinary skill in the creative work did not make the premise obtained, are within the scope of the present utility model protection.

[0027] FIG. 1, 4, as shown in FIG. 6 of the utility model provides an endoscopic pipe cutting pliers and a knife head comprises a turret I set the blade on the tool holder 2; the blade holder comprises sipe formed by the side walls 11, disposed in the knife blade slot and limit the displacement of the stepped stopper 12; both side walls of the blade slot is also provided with a first symmetrical positioning hole 13; through the the positioning hole and the positioning pin fixed to the blade 14.

[0028] According to the present utility model, on the knife slot does not include limiting hole and stop pin. It can only be installed on the knife blade slot in the production and assembly of the head, saving time. Also the stopper stepped sipes 12 provided in the rear. The first positioning hole 13 is located aft of the toolholder. The first positioning hole and the distance is greater than the distance between the rear groove cutter with the blade slot tail stepped between the stopper.

Shown in [0029] FIG. 6, the blade 2 comprises a knife blade 21 and the blade 22, the cutting edge throughout the length of the blade edge increases the effective length of the cutting blade. The knife blade at one end is provided with a knife 12 slot limit stepped notch 23 matches. When the gap with the stopper stepped fit, the blade is cutting state, when the gap separating the limit level, in the uncut state. The blade 22 also includes a mounting hole 221, the mounting hole on the mounting spring endoscopic tube pipe cutting pliers and slip-ring controlled by stretching the spring tube to control the rotation of the cutting blade. The blade is provided with the first positioning holes 13 matches the second positioning holes 24 2. 2 of the blade edge positioning hole 22 located at one end arc transition.

[0030] FIG. 2 and FIG. 5, FIG. 2 c is the art of stop pin carried by the stopper pin with the stopper Fig. 5 notches a, can prevent excessive cutting blade. And because a gap such that the effective length of the prior art cutting edge of the blade is reduced b, not a wide range of cutting. The utility model provides the tail blade through the gap position, effectively increasing the length of the cutting blade; the shape of the blade is more conducive to processing, reduce processing costs. One-piece knife holder, effectively reducing the processing time and reduce production costs.

[0031] The various embodiments of the present specification using progressive manner described, different from all the other embodiments of the example highlights of each of the embodiments, the same or similar portions between the various embodiments can see each other.

[0032] The above description of the disclosed embodiments, so that the skilled in the art to make or use the utility model. These various modifications to the field of professional and technical personnel embodiments will be apparent, the general principles defined herein may be made without departing from the spirit of the utility model or range, implemented in other embodiments. Thus, the utility model will not be limited to these embodiments shown herein, but rather to meet consistent with the principles disclosed herein, and novel features of the widest range.