A rocker arm positioning and switching structure for an endoscope operating device

Abstract

This utility model discloses a rocker arm positioning and switching structure for an endoscope operating device, relating to the technical field of endoscope rocker arm fixing structures. It includes a control device housing and a fixing member disposed inside the housing. A connecting member is disposed on the fixing member at its axial position. A movable member is connected to the end of the connecting member facing away from the fixing member. An external rocker arm, extending to the control device housing, is inserted into the movable member. By rotating the movable ring clockwise or counterclockwise, in conjunction with the sliding limit of the lowering rod by the fixing plate, the movable plate can move upward or downward with the clockwise or counterclockwise rotation of the movable ring. This causes the contact part to move closer to or away from the movable member, allowing it to abut against the outer wall of the movable member, thus restricting its rotation. This facilitates rocker arm positioning, and the force of the rotation restriction can be adjusted, avoiding situations where the device can only be used in rocker arm return mode or fixed mode.

Description

Technical Field

[0001] This utility model relates to the technical field of endoscope rocker arm fixing method switching structure, and in particular to a rocker arm positioning switching structure for an endoscope operating device. Background Technology

[0002] The development of endoscopes has gradually moved from the initial rigid endoscope stage and the semi-flexible and fiber optic endoscope stage to the era of electronic endoscopes and high-definition.

[0003] As a core component of endoscopes, the design of the joystick has evolved from early mechanical levers to electronic servo systems. Its core goal is to improve control precision and the efficiency of doctors' operations. For example, a three-chip camera working in conjunction with the joystick can achieve image-guided surgery with higher color reproduction. By controlling the traction wire or metal wire with the joystick, the angle of the curved part at the distal end of the endoscope can be adjusted. For example, industrial endoscopes use four guide tungsten wires, and 360° flexible rotation can be achieved by adjusting the tension of the tungsten wires. In existing technologies, if the endoscope lens is to be positioned, the friction between the joystick base and the joystick is usually increased to complete the joystick fixing process.

[0004] In the commonly used endoscope joystick positioning on the market, there are generally two joystick usage modes: one is a mode where the joystick can rebound after being shaken, and the other is a mode where the joystick position is fixed. It is not possible for users to switch between the rebound mode and the fixed mode at the same time during use.

[0005] Based on the above technical issues, a structure is proposed for the joystick positioning of the endoscope operating device to be automatically switchable. Summary of the Invention

[0006] In view of this, the main purpose of this utility model is to provide a rocker arm positioning and switching structure for an endoscope operating device, which solves the above-mentioned problems.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a rocker arm positioning and switching structure for an endoscope operating device, comprising a control device housing and a fixing member disposed inside the control device housing. A connecting member is disposed on the fixing member at the axial center position. A movable member is connected to the end of the connecting member away from the fixing member. An external rocker arm extending to the control device housing is inserted into the movable member. A stacked reset member is disposed at one end of the control device housing near the rocker arm. A fixing plate is disposed inside the control device housing near the movable member. The fixing plate is fixedly connected to the inner wall of the control device housing. A cavity for accommodating objects is formed between the fixing plate and the inner wall of the control device housing. A movable plate is movably disposed inside the cavity. Several sets of through slots are circumferentially formed on the fixing plate. A pressing rod is disposed on the movable plate at the position corresponding to the through slot, and the pressing rod points to the position of the movable member. The outer wall of the pressing rod is slidably limited to the through slot of the fixing plate. An abutment part is disposed at the end of the pressing rod near the movable member.

[0008] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, its main features are: This device, by rotating the movable ring clockwise or counterclockwise, in conjunction with the sliding limit of the lower pressure rod by the fixed plate, allows the movable plate to move upward or downward as the movable ring rotates clockwise or counterclockwise. This causes the contact part to move closer to or further away from the movable part, allowing the contact part to abut against the outer wall of the movable part, thus restricting the rotation of the movable part. This facilitates the positioning of the rocker arm, and the force of the rotation restriction can be adjusted, thereby enabling the rocker arm to switch between a rebound mode and a fixed mode.

[0009] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0010] Figure 1 This is a front view structural diagram of an embodiment of the present utility model; Figure 2 This is the utility model Figure 1 A schematic diagram of the AA cross-sectional structure; Figure 3 This is the utility model Figure 2 Enlarged schematic diagram of the structure at point A; Figure 4 This is a top view of an embodiment of the present utility model; Figure 5 This is the utility model Figure 4 A schematic diagram of the BB cross-sectional structure; Figure 6 This is a cross-sectional structural perspective view of an embodiment of the present utility model; Figure 7 This is the utility model Figure 6 Enlarged schematic diagram of the structure at point B.

[0011] Explanation of reference numerals in the attached drawings: 1. Housing of the control device; 2. Fixing component; 3. Connecting component; 4. Moving component; 5. Rocker arm; 6. Reset component; 7. Wire hole; 8. Steel wire rope; 9. Bending part; 10. Rotating shaft; 11. Fixing plate; 12. Moving plate; 13. Pressing rod; 14. Contact part; 15. Moving ring; 16. Internal thread; 17. External thread; 18. Sealing ring. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0013] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0014] Please see Figures 1 to 7 This utility model provides a rocker arm positioning and switching structure for an endoscope operating device, including a control device housing 1 and a fixing member 2 disposed inside the control device housing 1. A connecting member 3 is disposed on the fixing member 2 at the axial position. A movable member 4 is connected to one end of the connecting member 3 away from the fixing member 2. A rocker arm 5 is inserted into the movable member 4, and one end of the rocker arm 5 extends to the outside of the control device housing 1. A reset member 6 is disposed on the control device housing 1 at the location of the rocker arm 5. The reset member 6 is stacked. The connecting member 3 is fixedly connected to the fixing member 2. One end of the connector 3 is provided with a circular protrusion, and the connector 3 is connected to the movable part 4 through the circular protrusion for a limited movement. The axes of the fixed part 2, connector 3, movable part 4 and rocker arm 5 are coincident. With this arrangement, the rocker arm 5 can drive the movable part 4 to rotate on the connector 3 without detaching from the connector 3. With the setting of the reset part 6, the internal space of the control device housing 1 can be prevented from being directly connected to the outside. At the same time, when the rocker arm 5 is not driven, the return force of the reset part 6 can be used to make the rocker arm 5 return to the initial position. The fixing member 2 has several sets of threading holes 7 arranged in a ring at an angle. Specifically, there are four sets of threading holes 7. The movable member 4 has several sets of bending parts 9 corresponding to the threading holes 7. The bending parts 9 have a rotating shaft 10 inside. The fixing member 2 is connected to the threading holes 7 with a steel wire rope 8. One end of the steel wire rope 8 is connected to the rotating shaft 10. With this arrangement, the rotation of the movable member 4 can drive the steel wire rope 8 to move. And with the rotating shaft 10, the end of the threading hole 7 connected to the rotating shaft 10 can bend with the rotation of the rotating shaft 10 when the threading hole 7 is subjected to force. This avoids the breakage, damage and reduced lifespan caused by the direct fixed connection of the threading hole 7 to the movable member 4 in the prior art, thereby improving the service life of the threading hole 7.

[0015] A fixed plate 11 is provided inside the housing 1 of the control device, near the movable part 4. The fixed plate 11 is fixedly connected to the inner wall of the housing 1, and there is a cavity between the fixed plate 11 and the inner wall of the housing 1 to accommodate an object. A movable plate 12 is movably arranged inside the cavity. Several sets of through slots are circumferentially formed on the fixed plate 11, specifically three sets of through slots distributed at 120 degrees. A pressing rod 13 is provided on the movable plate 12, corresponding to the position of the through slot, and the pressing rod 13 points to the position of the movable part 4. The outer wall of the 13 is slidably limited to the through groove of the fixed plate 11. The end of the lower pressure rod 13 near the movable part 4 is provided with an abutment part 14. With this arrangement, when the movable plate 12 drives the lower pressure rod 13 to move closer to the movable part 4, the abutment part 14 can abut against the surface of the movable part 4, thereby restricting the rotation of the movable part 4. The bottom of the movable plate 12 and inside the cavity is also provided with a sealing ring 18 for sealing. The sealing ring 18 can reduce the contact between the external environment and the inside of the device through the cavity, thereby improving the sealing performance of the device. To drive the movable plate 12 to move within the cavity between the fixed plate 11 and the control device housing 1, a movable ring 15 is rotatably provided on the outer wall of the control device housing 1 near the movable plate 12. The movable ring 15 has an internal thread 16 facing the movable plate 12, and the outer wall of the movable plate 12 has an external thread 17. The movable ring 15 and the movable plate 12 are connected through the internal and external threads 17. With this arrangement, when the movable ring 15 is rotated clockwise or counterclockwise, in conjunction with the sliding limit of the lower pressure rod 13 by the fixed plate 11, the movable plate 12 can move upward or downward with the clockwise or counterclockwise rotation of the movable ring 15. This causes the contact part 14 to move closer to or away from the movable member 4, so that the contact part 14 can abut against the outer wall of the movable member 4, thereby limiting the rotation of the movable member 4 and positioning the rocker arm 5.

[0016] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rocker arm positioning and switching structure for an endoscope operating device, comprising a control device housing (1) and a fixing member (2) disposed inside the control device housing (1), wherein a connecting member (3) is disposed on the fixing member (2) at the axial position, a movable member (4) is connected to one end of the connecting member (3) away from the fixing member (2), an external rocker arm (5) with one end extending to the control device housing (1) is inserted on the movable member (4), and a stacked reset member (6) is disposed at one end of the control device housing (1) at the rocker arm (5), characterized in that: A fixed plate (11) is provided inside the housing (1) of the control device near the movable part (4). The fixed plate (11) is fixedly connected to the inner wall of the housing (1) of the control device. There is a cavity between the fixed plate (11) and the inner wall of the housing (1) of the control device that can accommodate an object. A movable plate (12) is movably arranged inside the cavity. Several sets of through slots are circumferentially opened on the fixed plate (11). A pressing rod (13) is provided on the movable plate (12) and at the position corresponding to the through slot. The pressing rod (13) points to the position of the movable part (4). The outer wall of the pressing rod (13) is slidably limited to the through slot of the fixed plate (11). A contact part (14) is provided at the end of the pressing rod (13) near the movable part (4).

2. The rocker arm positioning and switching structure of the endoscope operating device according to claim 1, characterized in that: The outer wall of the control device housing (1) is provided with a movable ring (15) near the movable plate (12). The movable ring (15) is provided with an internal thread (16) facing the movable plate (12). The outer wall of the movable plate (12) is provided with an external thread (17). The movable ring (15) and the movable plate (12) are connected by the internal and external threads (17).

3. The rocker arm positioning and switching structure of the endoscope operating device according to claim 1, characterized in that: The through slots are provided in three groups, and are distributed at 120 degrees.

4. The rocker arm positioning and switching structure of the endoscope operating device according to claim 1, characterized in that: The fixing member (2) has several sets of wire holes (7) in an annular inclined manner. The movable member (4) has several sets of bending parts (9) corresponding to the wire holes (7). The bending part (9) has a rotating shaft (10) inside. The fixing member (2) has a steel wire rope (8) through the wire holes (7), and one end of the steel wire rope (8) is connected to the rotating shaft (10).

5. The rocker arm positioning and switching structure of the endoscope operating device according to claim 4, characterized in that: There are four sets of threading holes (7).

6. The rocker arm positioning and switching structure of the endoscope operating device according to claim 2, characterized in that: When the movable plate (12) drives the pressure rod (13) to move closer to the movable part (4), the contact part (14) can contact the surface of the movable part (4) and restrict the movable part (4) from rotating.

7. The rocker arm positioning and switching structure of the endoscope operating device according to claim 1, characterized in that: A sealing ring (18) for sealing is provided at the bottom of the movable plate (12) and inside the cavity.

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