A multi-directional rotating plier head seat structure

Abstract

The utility model discloses a kind of multi-directional rotating forceps head seat structure, including rotating forceps head frame and fixed sleeve, the upper end of rotating forceps head frame is equipped with connector, the upper end surface between the connector and rotating forceps head frame forms limiting step, the inner wall of fixed sleeve is equipped with stop step, the upper end opening outer side edge of connector is equipped with stop convex ring, when connector is inserted into fixed sleeve, the stop convex ring and stop step are mutually blocked cooperation to limit connector to exit fixed sleeve, and connector can rotate relative to fixed sleeve.The utility model cooperates through fixed sleeve and connector, using the rotation of cable to transmit torque to the connecting pin shaft in forceps head, and the torsion of connecting pin shaft can drive forceps head and rotating forceps head frame to carry out 360 ° rotation relative to fixed sleeve, to realize the individual rotation of forceps head, labor-saving, and can improve the flexibility and accuracy of sampling.

Description

Technical Field

[0001] This utility model relates to the field of endoscope forceps holder technology, and in particular to a multi-directional rotating forceps holder structure. Background Technology

[0002] In endoscopic examinations, sampling forceps are an essential tool. When doctors perform pathological examinations on lesions, they can be inserted into the patient's body through the endoscope's forceps channel to collect tissue samples for pathological examination and diagnosis. Currently, the forceps head frame and Bourdon tube are fixed as one unit. The opening and closing of the forceps head is controlled by externally operating a cable within the Bourdon tube. When it is necessary to rotate the forceps head, the knob on the forceps operating handle rotates the cable, transmitting torque to the connecting pin mounted on the forceps head. This, in turn, rotates the forceps head frame and Bourdon tube as a whole, driving the forceps head to rotate. This not only places a heavy load on the forceps head and makes rotation difficult, but also results in significant torque loss during transmission, leading to a small actual rotation angle of the forceps head after transmission, thus affecting the accuracy of operation and sampling. Utility Model Content

[0003] This invention addresses the problem that in existing sampling pliers, the pliers head and spring tube are fixed together. When the angle of the pliers head needs to be rotated, the spring tube and pliers head frame need to be rotated as a whole. This not only results in a large load and difficulty in rotation, but also in significant torque loss during transmission, leading to a small actual rotation angle of the pliers head after transmission, thus affecting the accuracy of operation and sampling. The invention provides a multi-directional rotating pliers head seat structure that is simple in structure, easy to operate, and can realize independent rotation of the pliers head.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A multi-directional rotating pliers head seat structure of the present invention includes a rotating pliers head frame and a fixed sleeve. The upper end of the rotating pliers head frame is provided with a connector, and a limiting step is formed between the connector and the upper end face of the rotating pliers head frame. The inner wall of the fixed sleeve is provided with a backstop step, and the outer edge of the upper opening of the connector is provided with a backstop protrusion. When the connector is inserted into the fixed sleeve, the backstop protrusion and the backstop step block each other to restrict the connector from exiting the fixed sleeve, and the connector can rotate relative to the fixed sleeve. In this invention, the upper end of the fixed sleeve is rigidly connected to the spring sleeve in the sampling forceps, meaning the fixed sleeve and spring sleeve are fixed as one unit. The cable in the sampling forceps passes through the spring sleeve, fixed sleeve, connector, and rotating jaw frame, and is connected to the connecting pin in the jaw head. By rotating the knob on the sampling forceps operating handle, the torque is transmitted to the connecting pin in the jaw head through the rotation of the cable, causing the connecting pin to twist. Since the jaw head is hinged to the rotating jaw frame, the twisting of the connecting pin can drive the rotating jaw frame and the jaw head to rotate together relative to the fixed sleeve, thereby achieving independent rotation of the jaw head. The connection method between the cable and the connecting pin, and the method of transmitting torque to the connecting pin in the jaw head by rotating the knob on the sampling forceps operating handle, are conventional methods in the field and will not be described in detail here. The anti-reverse protrusion and the anti-reverse step mutually block and cooperate, which can prevent the connector from coming out of the fixed sleeve and achieve relative rotation between the two. The structure is simple and easy to install.

[0005] Preferably, the fixing sleeve is provided with a spreading notch. The spreading notch allows the fixing sleeve to be spread open, making it easier for the connector to be inserted into the fixing sleeve.

[0006] Preferably, the upper corner of the anti-reverse protrusion ring is provided with a guide chamfer. The guide chamfer serves a guiding function, which facilitates the quick insertion of the connector into the fixing sleeve.

[0007] Preferably, the upper opening edge of the fixing sleeve is provided with an anti-scratch chamfer. The anti-scratch chamfer prevents the fixing sleeve from scratching or abrading internal human tissues.

[0008] Preferably, the rotating clamp head frame, connector and anti-reverse ring are of the same material and are integrally formed.

[0009] Preferably, the connector and the fixed sleeve are in a sealed rotational fit.

[0010] Therefore, this utility model has the following beneficial effects:

[0011] (1) By cooperating with the fixed sleeve and the connector, the torque is transmitted to the connecting pin in the pliers head by the rotation of the cable. The pliers head and the rotating pliers head frame can rotate 360° relative to the fixed sleeve by the twisting of the connecting pin, thereby realizing the independent rotation of the pliers head, which saves effort and improves the flexibility and accuracy of sampling.

[0012] (2) By using the anti-reverse protrusion ring and the anti-reverse step to block each other, the connector can be prevented from coming out of the fixed sleeve, and the relative rotation of the two can be achieved. The structure is simple and easy to install. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention.

[0014] Figure 2 yes Figure 1 The right view.

[0015] Figure 3 yes Figure 2 A cross-sectional view along the AA direction.

[0016] Figure 4 yes Figure 1 The exploded diagram.

[0017] In the diagram: 1. Rotating clamp head holder; 2. Fixing sleeve; 3. Connecting head; 4. Limiting step; 5. Anti-reverse step; 6. Anti-reverse protrusion ring; 7. Spreading notch; 8. Guide chamfer; 9. Anti-scratch chamfer. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] like Figures 1-4 The multi-directional rotating pliers head structure shown includes a rotating pliers head frame 1 and a fixed sleeve 2. A connector 3 is fixed to the upper end of the rotating pliers head frame. A limiting step 4 is formed between the connector and the upper end face of the rotating pliers head frame. A backstop step 5 is provided on the inner wall of the fixed sleeve. A backstop protrusion ring 6 is formed by the outer edge of the upper opening of the connector. The rotating pliers head frame, connector, and backstop protrusion ring are homogeneous integral structures. A guide chamfer 8 is provided at the upper corner of the backstop protrusion ring. A spreading notch 7 is opened on the fixed sleeve. An anti-scratch chamfer 9 is provided at the edge of the upper opening of the fixed sleeve. When the connector is inserted into the fixed sleeve, the backstop protrusion ring and the backstop step block each other to restrict the connector from exiting the fixed sleeve, and the connector can rotate in a sealed manner relative to the fixed sleeve.

[0020] The working principle of this utility model is as follows: the cable (not shown in the figure) in the sampling clamp passes through the spring sleeve, the fixed sleeve, the connector and the rotating clamp head frame and is connected to the connecting pin (not shown in the figure) installed on the clamp head. By rotating the knob (not shown in the figure) on the operating handle of the sampling clamp, the torque can be transmitted to the connecting pin through the cable (the knob drives the cable to rotate). Then, the twisting of the connecting pin drives the clamp head and the rotating clamp head frame to rotate together relative to the fixed sleeve, thereby realizing the independent rotation of the clamp head.

[0021] This invention utilizes the cooperation between the fixed sleeve and the connector to transmit torque to the connecting pin on the pliers head through the rotation of the cable. The connecting pin drives the rotating pliers head frame to rotate 360° relative to the fixed sleeve, thereby enabling the pliers head to rotate independently. This reduces operating effort and improves the flexibility and accuracy of sampling, making it of great practical application value.

[0022] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A multi-directional rotating clamp head seat structure, characterized in that, The device includes a rotating pliers head holder (1) and a fixed sleeve (2). The upper end of the rotating pliers head holder is provided with a connector (3). A limiting step (4) is formed between the connector and the upper end face of the rotating pliers head holder. The inner wall of the fixed sleeve is provided with a backstop step (5). The outer edge of the upper opening of the connector is provided with a backstop protrusion (6). When the connector is inserted into the fixed sleeve, the backstop protrusion and the backstop step block each other to restrict the connector from exiting the fixed sleeve, and the connector can rotate relative to the fixed sleeve.

2. The multi-directional rotating clamp head seat structure according to claim 1, characterized in that, The fixing sleeve is provided with an opening notch (7).

3. The multi-directional rotating clamp head seat structure according to claim 1, characterized in that, The upper corner of the anti-reverse protrusion ring is provided with a guide chamfer (8).

4. The multi-directional rotating clamp head seat structure according to claim 1, characterized in that, The upper opening edge of the fixing sleeve is provided with a scratch-resistant chamfer (9).

5. The multi-directional rotating clamp head seat structure according to claim 1, characterized in that, The rotating clamp head frame, connector, and anti-reverse ring are of the same material and are integrally formed.

6. The multi-directional rotating clamp head seat structure according to claim 1, characterized in that, The connector and the fixed sleeve are in a sealed rotational fit.

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