Endoscope handle locking mechanism

Abstract

This utility model discloses an endoscope handle locking mechanism, relating to the field of endoscope handle locking technology. The endoscope handle locking mechanism includes a locking mechanism and a handle. A first handwheel and a second handwheel are disposed between the handle and the locking mechanism, and the first and second handwheels are stacked one after the other. The locking mechanism includes a lower pressure plate and a connecting column, and the connecting column and the lower pressure plate are detachably installed. The lower surface of the lower pressure plate is provided with an embedded groove, and a compression pad is installed inside the embedded groove. This solution solves the problem that in existing endoscope handle locking mechanisms, the lower pressure plate's surface is mostly in contact with the surface of the adjusting handwheel, which easily causes damage to the surfaces of the lower pressure plate and the adjusting handwheel due to prolonged friction, resulting in high replacement costs. Furthermore, replacing the locking mechanism requires replacing the entire mechanism, further increasing replacement costs.

Description

Technical Field

[0001] This utility model relates to the field of endoscope handle locking technology, specifically an endoscope handle locking mechanism. Background Technology

[0002] An endoscope is a medical device that integrates traditional optics, ergonomics, precision mechanics, and modern electronics. It is mainly used to examine and treat internal organs and tissues of the human body. The endoscope handle is an important part of the endoscope.

[0003] For example, the Chinese authorized patent CN219940552U (Endoscope Handwheel Locking Mechanism, Endoscope Handle, and Endoscope) includes a locking rotating part and a locking part. One side of the locking rotating part is coaxially connected to the locking part. The locking part has an elastic structure and is housed within the operating handwheel and fixed to the endoscope handle. The locking rotating part is rotatably mounted on the endoscope handle, and its rotation axis coincides with the rotation axis of the operating handwheel. When the locking rotating part is driven to rotate, it causes the elastic structure to deform, and the deformed elastic structure abuts against the locking operating handwheel radially. When the locking rotating part is driven to rotate in the opposite direction, it releases its effect on the elastic structure, allowing the elastic structure to return to its original shape and unlocking the operating handwheel. This application simplifies the mechanical structure of the handwheel locking mechanism and ensures the reliability and stability of the handwheel locking.

[0004] However, in most existing endoscope handle locking mechanisms, the lower pressure plate is in contact with the surface of the adjusting handwheel. Long-term friction can easily damage the surfaces of the lower pressure plate and the adjusting handwheel, resulting in high replacement costs. Furthermore, replacing the entire locking mechanism requires replacement, further increasing the replacement cost. Therefore, this does not meet the current requirements. To address this, we propose an endoscope handle locking mechanism. Utility Model Content

[0005] The purpose of this utility model is to provide an endoscope handle locking mechanism to solve the problem mentioned in the background art that the lower pressure plate of the existing endoscope handle locking mechanism is mostly in contact with the surface of the adjustment handwheel. Long-term friction can easily cause damage to the surface of the lower pressure plate and the adjustment handwheel, resulting in high replacement costs. Furthermore, the entire locking mechanism needs to be replaced when it is replaced, which further increases the replacement cost.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an endoscope handle locking mechanism, comprising: a locking mechanism and a handle, wherein a first handwheel and a second handwheel are provided between the handle and the locking mechanism, and the first handwheel and the second handwheel are stacked one after the other, the locking mechanism includes a lower pressure plate and a connecting column, and the connecting column and the lower pressure plate are detachably installed, the lower surface of the lower pressure plate is provided with an embedded groove, and a compression pad is installed inside the embedded groove.

[0007] Preferably, the top of the embedded groove is provided with an extended limiting groove, the extrusion pad includes a pressure end seat and a limiting end seat, and the limiting end seat is located at the upper end of the pressure end seat. The pressure end seat and the limiting end seat are respectively embedded in the embedded groove and the extended limiting groove, and the extrusion pad is made of rubber material.

[0008] Preferably, a connecting seat is provided on the top surface of the connecting column, and a connecting sleeve is provided at the center of the lower surface of the lower pressure plate, with the connecting seat inserted into the connecting sleeve.

[0009] Preferably, the upper surface of the lower pressure plate is heat-fused with a triangular force-applying seat, and a through screw groove is provided at the center of the upper surface of the triangular force-applying seat. A fixing screw is inserted into the screw groove, and one end of the fixing screw passes through the screw groove and is fixed to a screw hole pre-drilled on the upper surface of the connecting seat.

[0010] Preferably, the bottom outer wall of the connecting column is provided with an external thread, and the end of the connecting column with the external thread passes through the second handwheel and the first handwheel in sequence and is threadedly fixed to the handle.

[0011] Preferably, an extension seat is provided on the side of the handle near the bottom, and a guide seat is provided on the side of the handle near the top.

[0012] Preferably, a connection port is provided on the other side of the handle near the top, and a control button is provided on one side of the connection port.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model connects the extrusion pad to the lower pressure plate by setting an embedded groove on one side surface of the lower pressure plate and an extended limiting groove at the top of the embedded groove. The extrusion pad consists of a pressure end seat and a limiting end seat. During connection, the pressure end seat and the limiting end seat are respectively embedded in the embedded groove and the extended limiting groove. The extrusion pad is limited and prevented from falling off by relying on the diameter difference between the embedded groove and the extended limiting groove. When the lower pressure plate contacts the second handwheel, the extrusion pad contacts the handwheel, thus avoiding contact between the surface of the lower pressure plate and the second handwheel, thereby avoiding damage caused by rotational friction, improving the service life of the second handwheel and the lower pressure plate, and making the time more efficient. This design reduces replacement cycles and thus lowers replacement costs. One end of the fixing screw passes through a screw slot and is fixed to a pre-drilled screw hole on the upper surface of the connector, connecting the connecting column and the lower pressure plate. The detachable connecting column and lower pressure plate mean that if the lower pressure plate is damaged, only the lower pressure plate needs to be replaced, not the connecting column, further reducing replacement costs. This addresses the problem that in existing endoscope handle locking mechanisms, the lower pressure plate's surface is mostly in contact with the adjusting handwheel surface, leading to damage from prolonged friction and high replacement costs. Furthermore, replacing the entire locking mechanism further increases replacement costs.

[0015] (2) By setting a connecting seat at the top of the connecting column and a connecting sleeve on the lower surface of the lower pressure plate, when the connecting column is connected to the lower pressure plate, the connecting seat is inserted into the connecting sleeve. The connecting sleeve limits the connecting column and prevents the connection position from shifting with the lower pressure plate, thereby improving the stability of the connection between the connecting column and the lower pressure plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the locking mechanism structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the disassembled structure of the lower pressure plate and connecting column of this utility model;

[0019] Figure 4 This is a schematic diagram of the disassembled structure of the lower pressure plate and the extrusion pad of this utility model;

[0020] In the diagram: 1. Locking mechanism; 2. Handle; 3. Extension seat; 4. Guide seat; 5. Connection port; 6. Control button; 7. First handwheel; 8. Second handwheel; 9. Lower pressure plate; 10. Connecting column; 11. Triangular force application seat; 12. External thread; 13. Extension limit groove; 14. Embedded groove; 15. Compression pad; 16. Connecting sleeve; 17. Connecting seat; 18. Fixing screw; 19. Screw groove; 20. Pressure end seat; 21. Limiting end seat. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4This utility model provides an embodiment of an endoscope handle locking mechanism, comprising: a locking mechanism 1 and a handle 2. A first handwheel 7 and a second handwheel 8 are disposed between the handle 2 and the locking mechanism 1, and the first handwheel 7 and the second handwheel 8 are stacked one behind the other. An extension seat 3 is disposed on the side of the handle 2 near the bottom end, a guide seat 4 is disposed on the side of the handle 2 near the top end, and a connection port 5 is disposed on the other side of the handle 2 near the top end. A control button 6 is disposed on one side of the connection port 5. The locking mechanism 1 includes a lower pressure plate. The lower pressure plate 9 and the connecting post 10 are detachably installed. The lower surface of the lower pressure plate 9 is provided with an embedded groove 14. An extrusion pad 15 is installed inside the embedded groove 14. An extended limiting groove 13 is provided at the top of the embedded groove 14. The extrusion pad 15 includes a pressure-bearing end seat 20 and a limiting end seat 21. The limiting end seat 21 is located above the pressure-bearing end seat 20. The pressure-bearing end seat 20 and the limiting end seat 21 are respectively embedded in the embedded groove 14 and the extended limiting groove 13. The extrusion pad 15 is made of rubber. The connecting column 10 has an external thread 12 on its bottom outer wall. The end of the connecting column 10 with the external thread 12 passes through the second handwheel 8 and the first handwheel 7 in sequence and is threaded to the handle 2. First, the extrusion pad 15 is connected to the lower pressure plate 9. The extrusion pad 15 consists of a pressure-bearing end seat 20 and a limiting end seat 21. During connection, the pressure-bearing end seat 20 and the limiting end seat 21 are respectively embedded in the inner groove 14 and the extended limiting groove 13. The difference in diameter between the inner groove 14 and the extended limiting groove 13 is used to extrude... The pressure pad 15 is used to limit the movement and prevent it from falling. The end of the connecting column 10 with the external thread 12 passes through the second handwheel 8 and the first handwheel 7 in sequence and is threaded to the handle 2. By tightening the locking mechanism 1, the second handwheel 8 and the first handwheel 7 of the handle 2 are locked to prevent rotation. When the lower pressure plate 9 contacts the second handwheel 8, the pressure pad 15 is used to prevent the surface of the lower pressure plate 9 from contacting the second handwheel 8, thereby avoiding damage caused by rotational friction and improving the service life of the second handwheel 8 and the lower pressure plate 9.

[0023] Please see Figure 2 , 3A connecting seat 17 is provided on the top surface of the connecting column 10, and a connecting sleeve 16 is provided at the center of the lower surface of the lower pressure plate 9. The connecting seat 17 is inserted into the connecting sleeve 16. A triangular force-applying seat 11 is heat-fused to the upper surface of the lower pressure plate 9. A through screw groove 19 is provided at the center of the upper surface of the triangular force-applying seat 11. A fixing screw 18 is inserted into the screw groove 19, and one end of the fixing screw 18 passes through the screw groove 19 and is fixed to the screw hole pre-drilled on the upper surface of the connecting seat 17, thus connecting the connecting column 10 and the lower pressure plate 9. When connecting, the connecting seat 17 is inserted into the connecting sleeve 16, which has a limiting effect on the connecting column 10, preventing the connection position with the lower pressure plate 9 from shifting and improving stability. Then, one end of the fixing screw 18 passes through the screw groove 19 and is fixed to the screw hole pre-drilled on the upper surface of the connecting seat 17, thus connecting the connecting column 10 and the lower pressure plate 9. The connecting column 10 and the lower pressure plate 9 are detachable. If the lower pressure plate 9 is damaged, only the lower pressure plate 9 needs to be replaced, and the connecting column 10 does not need to be replaced, thereby reducing replacement costs.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An endoscope handle locking mechanism, comprising a locking mechanism (1) and a handle (2), wherein a first handwheel (7) and a second handwheel (8) are disposed between the handle (2) and the locking mechanism (1), and the first handwheel (7) and the second handwheel (8) are stacked one after the other, characterized in that: The locking mechanism (1) includes a lower pressure plate (9) and a connecting column (10), and the connecting column (10) and the lower pressure plate (9) are detachably installed. The lower surface of the lower pressure plate (9) is provided with an embedded groove (14), and a compression pad (15) is installed inside the embedded groove (14).

2. The endoscope handle locking mechanism according to claim 1, characterized in that: The top of the embedded groove (14) is provided with an extended limiting groove (13). The extrusion pad (15) includes a pressure end seat (20) and a limiting end seat (21), and the limiting end seat (21) is located at the upper end of the pressure end seat (20). The pressure end seat (20) and the limiting end seat (21) are respectively embedded in the embedded groove (14) and the extended limiting groove (13). The extrusion pad (15) is made of rubber material.

3. The endoscope handle locking mechanism according to claim 1, characterized in that: The top surface of the connecting column (10) is provided with a connecting seat (17), and the center of the lower surface of the lower pressure plate (9) is provided with a connecting sleeve (16), and the connecting seat (17) is inserted into the connecting sleeve (16).

4. The endoscope handle locking mechanism according to claim 3, characterized in that: The upper surface of the lower pressure plate (9) is hot-melted with a triangular force-applying seat (11). A through screw groove (19) is provided at the center of the upper surface of the triangular force-applying seat (11). A fixing screw (18) is inserted into the screw groove (19), and one end of the fixing screw (18) passes through the screw groove (19) and is fixed to the screw hole pre-drilled on the upper surface of the connecting seat (17).

5. The endoscope handle locking mechanism according to claim 1, characterized in that: The bottom outer wall of the connecting column (10) is provided with an external thread (12), and the end of the connecting column (10) with the external thread (12) passes through the second handwheel (8) and the first handwheel (7) in sequence and is threadedly fixed to the handle (2).

6. The endoscope handle locking mechanism according to claim 1, characterized in that: An extension seat (3) is provided on the side of the handle (2) near the bottom, and a guide seat (4) is provided on the side of the handle (2) near the top.

7. The endoscope handle locking mechanism according to claim 1, characterized in that: The handle (2) has a connection port (5) on the other side near the top, and a control button (6) is provided on one side of the connection port (5).

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