Jaw structure of clip applier and clip applier

Abstract

The utility model provides a jaw structure of a clip applier. The jaw structure of the clip applier comprises a jaw A, a jaw B, a clip closing sleeve and an elastic piece. The jaw A and the jaw B are connected with the framework assembly through rotating shafts, and positioning grooves are formed in the front ends inside the jaw A and the jaw B and matched with the closing clamps. A blind hole is formed in the rear end of the closed clamp sleeve, sleeves the framework assembly and is fixedly connected with the closed clamp connecting rod. The positioning groove ensures that the closing clamp is accurately positioned, and jumping or jamming is avoided. When the positioning column of the closing clamp enters the positioning groove, fixation is achieved, and operation efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of clip applicators, and particularly to a jaw structure of a clip applicator and a clip applicator. Background Art

[0002] The jaws of the clip applicator in the prior art mainly rely on a simple mechanical structure to achieve the opening and closing operation of the closing clip. This mechanical structure generally includes jaw components and corresponding driving mechanisms. By driving the opening and closing of the jaw components through the driving mechanism, the clamping and releasing of the closing clip are realized.

[0003] Due to the complexity of the mechanical structure and the limitation of manufacturing precision, the jaw components may get stuck when pushing out the closing clip.

[0004] Secondly, due to factors such as the vibration of the mechanical structure, the instability of the driving mechanism, or the impact during the operation process, it causes jumping. Summary of the Utility Model

[0005] The purpose of this application is to overcome the above-mentioned prior art and provide a jaw structure of a clip applicator and a clip applicator.

[0006] A jaw structure of a clip applicator provided by this application includes: jaw A, jaw B, a closing clip sleeve, and a closing clip spring piece;

[0007] The jaw A and jaw B are provided with rotating shafts and are rotatably connected to the skeleton assembly through the rotating shafts;

[0008] The front ends inside the jaw A and jaw B are provided with positioning grooves for cooperating with the closing clip;

[0009] The rear end of the closing clip sleeve is provided with a blind hole. The closing clip sleeve sleeves the skeleton assembly and is fixedly connected to the closing clip connecting rod through the blind hole.

[0010] Optionally, the jaw A and jaw B are provided with working surfaces that are parallel to each other as a whole;

[0011] The front end of the working surface is provided with a slope.

[0012] Optionally, the closing clip sleeve chute is provided with closing clip sleeve chute convex blocks that cooperate with the working surfaces of the jaw A and jaw B.

[0013] This application also provides a clip applicator that adopts the jaws of the above-mentioned jaw structure of the clip applicator.

[0014] The beneficial effects of this application are:

[0015] A jaw structure of a clip applicator provided by the present application includes: jaw A, jaw B, a closing sleeve, and a closing spring piece; the jaw A and jaw B are provided with rotating shafts and are rotatably connected to a frame assembly through the rotating shafts; at the front ends inside the jaw A and jaw B, positioning grooves are provided for cooperating with a closing clip; a blind hole is provided at the rear end of the closing sleeve, and the closing sleeve sleeves the frame assembly and is fixedly connected to a closing connecting rod through the blind hole. In the present application, the setting of the positioning grooves ensures that the closing clip can be accurately positioned within the jaws. When the positioning posts of the closing clip enter the positioning grooves, they will be fixed, thereby achieving the accurate positioning of the closing clip and avoiding the bouncing or jamming of the closing clip. Description of the Drawings

[0016] Figure 1 is a schematic three-dimensional structure diagram of the jaws in the present application;

[0017] Figure 2 is an exploded schematic diagram of the jaw parts in the present application;

[0018] Figure 3 is a schematic cross-sectional structure diagram of the jaws in the present application;

[0019] Figure 4 is a schematic diagram of the closed state of the jaw structure in the present application;

[0020] Figure 5 is a schematic diagram of the open state of the jaw structure in the present application. Detailed Embodiment

[0021] The following further illustrates the present application with reference to the drawings and specific embodiments, so that those skilled in the art can better understand the present application and be able to implement it.

[0022] The following content is all examples of the specific implementation process provided to detail the technical solution to be protected by the present application. However, the present application can also be implemented in other ways different from the descriptions herein. Those skilled in the art, under the guidance of the concept of the present application, can implement the present application using different technical means. Therefore, the present application is not limited by the following specific embodiments.

[0023] Please refer to Figures 1 to 5 as shown, a jaw structure of a clip applicator includes: jaw A 401, jaw B 402, a closing sleeve 404, and a closing spring 406.

[0024] The jaw A 401 and jaw B 402 are rotatably connected to the jaw positioning piece 306 and the lower jaw positioning piece 307 of the reference frame 300 through rotating shafts.

[0025] The tail of the closing sleeve 404 is fixedly engaged with the closing link 215 and is slidably engaged with the reference frame 300. The closing spring 406 is arranged at the tails of the jaw A 401 and the jaw B 402 to provide a closing force for the jaws. When the closing clip 107 is inserted into the jaws, the closing force applied by the closing spring 406 to the jaws is balanced with the natural opening force of the jaws.

[0026] Further, working surfaces are provided on the backs of the jaw A 401 and the jaw B 402, and a chute boss 405 is arranged on the inner side of the closing sleeve 404.

[0027] During the closing process, the front side of the closing sleeve 404 contacts the working surfaces 403 on the backs of the jaw A 401 and the jaw B 402 and presses the jaw A 401 and the jaw B 402 to approach each other to achieve jaw closing.

[0028] During the opening process, the front side of the closing sleeve 404 disengages from the working surfaces 403 on the backs of the jaw A 401 and the jaw B 402, and the chute boss 405 on the inner side of the closing sleeve 404 contacts the working surfaces 403 on the backs of the jaw A 401 and the jaw B 402 and first moves along the curve of the working surface for a certain distance and then disengages.

[0029] In the initial state, the working surfaces on the backs of the jaws do not contact the inner chutes of the jaws and the chute boss 405, and the jaws are in a semi-closed state only under the action of the closing spring pieces at the tails. The closing sleeve 404 is at the rearmost end of the jaw assembly 400.

[0030] During closing, the closing sleeve 404 moves forward, and the front side of the closing sleeve 404 simultaneously contacts the working surfaces 403 on the backs of the jaw A 401 and the jaw B 402. The closing sleeve 404 continues to move forward, and the front side of the closing sleeve 404 presses the front sides of the working surfaces 403 on the backs of the jaw A 401 and the jaw B 402 so that the jaw A 401 and the jaw B 402 approach each other until the closing operation is completed.

[0031] Next, the closing sleeve 404 retracts. At this time, the front side of the closing sleeve 404 disengages from the working surfaces 403 on the backs of the jaw A 401 and the jaw B 402, and the boss arranged on the inner chute of the closing sleeve 404 contacts the working surfaces 403 on the backs of the jaw A 401 and the jaw B 402.

[0032] The closing sleeve 404 continues to retract, and the inner chute boss 405 presses the rear sides of the working surfaces 403 on the backs of the jaw A 401 and the jaw B 402 so that the jaw A 401 and the jaw B 402 move away from each other to achieve jaw opening. At this time, the already applied closing clip 107 can be taken out from the jaws.

[0033] Further, the clamping sleeve 404 continues to retract without contacting the back working surfaces 403 of the jaws A401 and B402. At this time, the jaws A401 and B402 are only affected by the clamping spring 406, causing the jaws A401 and B402 to approach each other and assume a semi-closed state. The closing clip 107 begins to be fed into the jaws.

[0034] Since the closing clip 107 is in a fully open state in the initial state, when the closing clip 107 is pressed from the magazine containing the closing clip until it reaches the jaws, the closing clip 107 will quickly recover its deformation and eject forward and become unstable. Under the action of the clamping spring 406, when the closing clip 107 enters the jaws, the force for the closing clip 107 to open naturally balances the force exerted by the clamping spring 406 on the jaws, so that the closing clip 107 will not become unstable due to the recovery of deformation. The closing clip 107 is smoothly fed into the jaws and is fitted in place with the jaw positioning groove 407.

Claims

1. A jaw structure of a clip applier, characterized in that: include: It includes jaw A, jaw B, a clamping sleeve and a clamping spring; The jaws A and B are provided with a rotating shaft, which is rotatably connected to the skeleton assembly through the rotating shaft; The front ends of the jaws A and B are provided with positioning grooves for matching with the closing clamps; A blind hole is provided at the rear end of the closing clamp sleeve, and the closing clamp sleeve covers the frame assembly and is fixedly connected to the closing clamp connecting rod through the blind hole.

2. The jaw structure of the clip applier according to claim 1, characterized in that: The jaws A and B are provided with working surfaces, which are generally parallel to each other; The front end of the working surface is provided with a slope.

3. The jaw structure of the clip applier according to claim 1, characterized in that: The closing sleeve slide groove is provided with a closing sleeve slide groove protrusion which cooperates with the working surfaces of the jaws A and B.

4. A clip applier, characterized in that: The clamping forceps adopts the jaws of the jaw structure of the clamping forceps according to any one of claims 1 to 3.

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