A linkage control mechanism

Abstract

The utility model relates to mechanical linkage structure technical field especially is a linkage control mechanism, it includes connecting branch, top block, installs linkage control assembly on connecting branch arm and installs in the close -fitting subassembly of connecting branch arm, the linkage control assembly includes control main body, pull plate, front joint transmission part, rear joint transmission part, reset part and lever part, the utility model discloses novel structure, one key realizes locking / unlocking three components, replaces traditional multistep operation, solves the problem of traditional operation difficulty, is favorable for promoting the adjustment efficiency, the utility model discloses the quick control of top block, first switch component and second switch component through mechanical linkage, and then realizes the quick locking / unlocking of external three components.

Description

Technical Field

[0001] This utility model relates to the field of mechanical linkage structure technology, and in particular to a linkage control mechanism. Background Technology

[0002] In traditional mechanical linkage systems, such as multi-joint medical outriggers, the adjustment of the universal joint on the outrigger and the external gas spring usually requires multiple steps: first, unlocking the fixing mechanism of the universal joint, and then operating the switching components of the two gas springs separately to complete the angle adjustment. This step-by-step operation mode has significant drawbacks: cumbersome operation: it requires repeated switching of tools or manual operation of multiple components, which is time-consuming and prone to errors; insufficient stability: the mechanical structure lacks linkage design, and components may become asynchronous during reset, leading to locking failure. Traditional step-by-step operation is cumbersome and cannot meet the needs of frequent operation and work efficiency in medical systems. Summary of the Invention

[0003] This invention provides a linkage control mechanism to address the problems of existing technologies. It features a novel structure and enables one-button locking / unlocking of three components, replacing traditional multi-step operations and solving the difficulties of traditional operation. This improves adjustment efficiency. Through mechanical linkage, this invention achieves rapid control of the top block, the first switch component, and the second switch component, thereby enabling rapid locking / unlocking of the three external components.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model provides a linkage control mechanism, which includes a connecting arm, a top block, a linkage control component mounted on the connecting arm, and a clamping component mounted inside the connecting arm. The top block is slidably disposed at the front end of the connecting arm, and the front end of the top block is used to abut against an external universal ball joint movably disposed at the front end of the connecting arm. The clamping component is used to push the top block against the external universal ball joint. The connecting arm is also equipped with a first switch component and a second switch component.

[0006] The linkage control assembly includes a control body, a pull plate, a front joint transmission component, a rear joint transmission component, a reset component, and a lever component. The control body, the front joint transmission component, the rear joint transmission component, the reset component, and the lever component are movably mounted on the connecting support arm. One end of the control body is connected to the pull plate, and the pull plate is connected to the front joint transmission component and the rear joint transmission component. The front joint transmission component is provided with a first transmission part and a second transmission part. The first transmission part is used to drive the top block to release the external universal ball joint, the second transmission part is used to drive the first switch component to open, the rear joint transmission component is used to drive the second switch component to open, and the reset component is used to drive the control body, the front joint transmission component, and the rear joint transmission component to reset.

[0007] The front joint transmission component includes a front transmission slide plate, a transmission slide block, and a guide fixing seat. The control body is rotatably connected to the connecting support arm. One end of the control body is connected to the upper end of the pull plate. One end of the front transmission slide plate is connected to the pull plate. The other end of the front transmission slide plate is connected to the upper end of the transmission slide block. The guide fixing seat is fixedly installed inside the connecting support arm. The lower end of the transmission slide block is slidably connected to the guide fixing seat. Both sides of the transmission slide block are slidably connected to the lever component.

[0008] The transmission slide has first abutment pulleys rotatably mounted on both sides.

[0009] The reset component includes a first spring, which is located between the transmission slide and the guide fixing seat, with both ends of the first spring connected to the transmission slide and the guide fixing seat respectively.

[0010] The reset component includes a second spring, which is located between the pull plate and the connecting arm. The two ends of the first spring are respectively connected to the pull plate and the connecting arm.

[0011] The lever component includes two lever arms facing each other. One end of each lever arm is inclinedly provided with a release guide. The transmission slide is located between one end of the two lever arms. The distance between the release guides of the two lever arms gradually decreases along one end of the lever arm. The other end of each lever arm is rotatably connected to the front end of the connecting arm. Grooves are provided on both sides of the top block. The front end of the other end of the lever arm extends into the groove.

[0012] The rear joint transmission component includes a rear push block, a rear transmission slide plate, and a rear push portion disposed at the end of the rear transmission slide plate. The rear push portion is used to drive the second switch component to open. One end of the rear push block is hinged to the lower end of the pull plate, and the other end of the rear push block is hinged to the front end of the rear transmission slide plate. A rear transmission guide groove is provided through the connecting arm, and the rear transmission slide plate is slidably disposed in the rear transmission guide groove.

[0013] The rear pushing part is provided with a second abutting pulley at its end.

[0014] The rear drive slide plate is provided with a third abutting pulley at its front end.

[0015] The clamping assembly includes a pressure block and an elastic element. The elastic element is located between the pressure block and the top block, and its two ends are respectively connected to the pressure block and the top block. The pressure block is installed inside the connecting support arm.

[0016] The beneficial effects of this utility model are:

[0017] In the initial state (when the control body is not pressed), the clamping component continuously pushes the top block, keeping the front end of the top block in close contact with the external universal ball joint at the front end of the connecting arm, and fixing the angle of the universal ball joint through friction. When it is necessary to adjust the angle of the universal ball joint, the top block needs to be clamped against the universal ball joint. At this time, the operator presses the control body, and the force is transmitted to the lever component and the first switch component through the first and second transmission parts of the front joint transmission component, respectively, and the force is transmitted to the second switch component through the rear joint transmission component. Among them, the change of the lever shape of the lever component causes the top block to slide backward, releasing the clamping force on the universal ball joint. At this time, the direction of the universal ball joint can be freely adjusted. At the same time, the first switch component opens, so that the external gas spring corresponding to the first switch component can be unlocked to facilitate adjustment. At the same time, the second switch component opens, so that the external gas spring corresponding to the second switch component can be unlocked to facilitate adjustment.

[0018] After adjusting the positions of the universal ball joint and the external gas springs, release the control body. The reset component drives the front joint transmission component, the rear joint transmission component, and the control body back to their original positions. The lever component no longer acts on the top block, and the locking component pushes the top block back to lock the universal ball joint. Simultaneously, the first and second switch components close, locking the external gas springs to ensure good stability, prevent loosening, and ensure a reliable structure. This utility model features a novel structure, achieving one-button locking / unlocking of three components (the external universal ball joint and the two gas springs corresponding to the two switch components), replacing traditional multi-step operations and solving the problem of difficult traditional operations. This improves adjustment efficiency. This utility model achieves rapid control of the top block, the first switch component, and the second switch component through mechanical linkage, thereby achieving rapid locking / unlocking of the three components (the external universal ball joint and the two external gas springs). Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the linkage control mechanism of this utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of a linkage control mechanism according to the present invention.

[0021] Figure 3 This is a schematic diagram of the internal structure of a linkage control mechanism according to this utility model from another perspective.

[0022] Figure 4 This is a schematic diagram of the structure of this utility model when applied to a medical outrigger.

[0023] exist Figures 1 to 4 The reference numerals in the figures include:

[0024] 100. Connecting arm; 200. Linkage control assembly; 300. Bracing assembly; 400. Front joint transmission component; 500. Lever component; 600. Resistance adjustment assembly; 700. First switch component; 800. Second switch component; 900. Rear joint transmission component;

[0025] 1. Top block; 2. Universal ball joint; 3. Control body; 4. Pull plate; 5. Front drive slide plate; 6. Drive slide block; 7. Guide fixing seat; 8. First abutment pulley; 9. First spring; 10. Second spring; 11. Lever arm; 12. Release guide part; 13. Groove; 14. Pressure block; 15. Elastic element; 16. Connecting bracket; 17. Resistance adjusting screw; 18. Drive bevel gear; 19. Drive bevel gear; 20. Resistance adjusting element; 21. Movable ball cavity; 22. Threaded connection part; 23. Guide slide groove; 24. Rear push block; 25. Rear drive slide plate; 26. Rear push part; 27. Rear drive guide groove; 28. Second abutment pulley; 29. ​​Third abutment pulley; 30. Gas spring; 31. First transmission part; 32. Second transmission part. Detailed Implementation

[0026] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0027] This application provides a linkage control mechanism, such as... Figures 1 to 4 As shown, it includes a connecting arm 100, a top block 1, a linkage control component 200 mounted on the connecting arm 100, and a clamping component 300 mounted inside the connecting arm 100. The top block 1 is slidably disposed at the front end of the connecting arm 100, and the front end of the top block 1 is used to abut against an external universal ball joint 2 movably disposed at the front end of the connecting arm 100. The clamping component 300 is used to push the top block 1 against the external universal ball joint 2. The connecting arm 100 is also equipped with a first switch component 700 and a second switch component 800. The first switch component 700 and the second switch component 800 are gas spring 30 locks for the external gas spring 30.

[0028] The linkage control component 200 includes a control body 3, a pull plate 4, a front joint transmission component 400, a rear joint transmission component 900, a reset component, and a lever component 500. The control body 3, the front joint transmission component 400, the rear joint transmission component 900, the reset component, and the lever component 500 are movably mounted on the connecting support arm 100. One end of the control body 3 is connected to the pull plate 4. The pull plate 4 is connected to the front joint transmission component 400 and the rear joint transmission component 900. The front joint transmission component 400 is provided with a first transmission part 31 and a second transmission part 32. The first transmission part 31 is used to drive the top block 1 to release the external universal ball joint 2. The second transmission part 32 is used to drive the first switch component 700 to open. The rear joint transmission component 900 is used to drive the second switch component 800 to open. The reset component is used to drive the control body 3, the front joint transmission component 400, and the rear joint transmission component 900 to reset.

[0029] Specifically, in the initial state (when the control body 3 is not pressed), the pressing component 300 continuously pushes the top block 1, keeping the front end of the top block 1 in close contact with the external universal ball joint 2 at the front end of the connecting arm 100, and fixing the angle of the universal ball joint 2 through friction. When it is necessary to adjust the angle of the universal ball joint 2, that is, when the top block 1 needs to press against the universal ball joint 2, the operator presses the control body 3, and the force is transmitted to the lever component 500 and the first transmission part 31 and the second transmission part 32 of the front joint transmission component 400, respectively. The switch component 700 transmits force to the second switch component 800 via the rear joint transmission component 900. The lever shape change of the lever component 500 causes the top block 1 to slide backward, releasing the clamping force on the universal ball head 2. At this time, the direction of the universal ball head 2 can be freely adjusted. At the same time, the first switch component 700 opens, allowing the corresponding external gas spring 30 to be unlocked for easy adjustment. Simultaneously, the second switch component 800 opens, allowing the corresponding external gas spring 30 to be unlocked for easy adjustment.

[0030] After adjusting the positions of the universal ball joint 2 and the external gas spring 30, the control body 3 is released. The reset component drives the front joint transmission component 400, the rear joint transmission component 900, and the control body 3 back to their original positions. The lever component 500 no longer acts on the top block 1, and the clamping component 300 pushes the top block 1 again to lock the universal ball joint 2. At the same time, the first switch component 700 and the second switch component 800 are closed, locking the external gas spring 30, ensuring good stability, preventing loosening, and ensuring a reliable structure. This utility model has a novel structure, achieving locking / unlocking of three components (the external universal ball joint 2 and the two gas springs 30 corresponding to the two switch components) with a single button, replacing the traditional multi-step operation and solving the problem of difficult traditional operation. This utility model achieves rapid control of the top block 1, the first switch component 700, and the second switch component 800 through mechanical linkage, thereby achieving rapid locking / unlocking of the three components (the external universal ball joint 2 and the two external gas springs 30).

[0031] In this embodiment, the clamping assembly 300 includes a pressure block 14 and an elastic element 15. The elastic element 15 is located between the pressure block 14 and the top block 1, and its two ends are respectively connected to the pressure block 14 and the top block 1. The pressure block 14 is installed inside the connecting arm 100. Specifically, the elastic element 15 can be a spring. With the arrangement of the pressure block 14 and the elastic element 15, the force pushing the top block 1 can be maintained, so that the top block 1 remains clamped against the universal ball joint 2.

[0032] In this embodiment, the front joint transmission component 400 includes a front transmission slide plate 5, a transmission slide block 6, and a guide fixing seat 7. The control body 3 is rotatably connected to the connecting support arm 100. One end of the control body 3 is connected to the upper end of the pull plate 4. One end of the front transmission slide plate 5 is connected to the pull plate 4. The other end of the front transmission slide plate 5 is connected to the upper end of the transmission slide block 6. The guide fixing seat 7 is fixedly installed inside the connecting support arm 100. The lower end of the transmission slide block 6 is slidably connected to the guide fixing seat 7. Both sides of the transmission slide block 6 are slidably connected to the lever component 500.

[0033] The lever component 500 includes two lever arms 11 arranged opposite each other. One end of each lever arm 11 is inclinedly provided with a release guide 12. The transmission slide 6 is located between one end of the two lever arms 11. The distance between the release guides 12 of the two lever arms 11 gradually decreases along one end of the lever arm 11. The other end of the lever arm 11 is rotatably connected to the front end of the connecting arm 100. The top block 1 has grooves 13 on both sides. The front end of the other end of the lever arm 11 extends into the groove 13.

[0034] The rear joint transmission component 900 includes a rear push block 24, a rear transmission slide plate 25, and a rear push portion 26 disposed at the end of the rear transmission slide plate 25. The rear push portion 26 is used to drive the second switch component 800 to open. One end of the rear push block 24 is hinged to the lower end of the pull plate 4, and the other end of the rear push block 24 is hinged to the front end of the rear transmission slide plate 25. A rear transmission guide groove 27 is provided through the connecting support arm 100, and the rear transmission slide plate 25 is slidably disposed in the rear transmission guide groove 27.

[0035] Specifically, under the above settings, when the operator needs to adjust the angle of the external universal ball joint 2 and the external gas spring 30, the operator presses the control body 3, causing one end of the control body 3 to flip and tilt, driving the pull plate 4 to move backward, which in turn drives the front transmission slide plate 5 and the rear transmission slide plate 25 to move backward. The front transmission slide plate 5 drives the transmission slide block 6 to move backward, thereby pushing the release guide part 12 at one end of the lever arm 11, so that the front end of the other end of the lever arm 11 extends into the groove 13 and drives the top block 1 to move slightly backward, so that the elastic element 15 is slightly compressed. At this time, the friction between the top block 1 and the universal ball joint 2 is reduced, unlocking the universal ball joint 2 and facilitating the adjustment of the direction of the universal ball joint 2. At the same time, the front transmission slide plate... 5 drives the first switch component 700 to open, facilitating the unlocking of the corresponding external gas spring 30 and thus enabling adjustment; when the rear transmission slide plate 25 moves backward, it pushes the second switch component 800 to open, facilitating the unlocking of the corresponding external gas spring 30 and thus enabling adjustment; when the position of the universal ball head 2 needs to be locked after adjustment, the control body 3 is released, and under the action of the reset component, the control body 3, the front transmission slide plate 5, the rear transmission slide plate 25, and the transmission slide 6 are driven to reset, so that the top block 1 continues to press against the universal ball head 2, the first switch component 700 and the second switch component 800 are closed, and their corresponding gas springs 30 are locked and cannot be adjusted, realizing one-button operation of three components and achieving rapid reset.

[0036] In this embodiment, first abutment pulleys 8 are rotatably provided on both sides of the transmission slide 6. Specifically, the first abutment pulleys 8 slide against the lever arm 11, reducing wear between the two sides of the transmission slide 6 and the lever arm 11, which helps to improve service life and ensures the smoothness and stability of the sliding between the transmission slide 6 and the lever arm 11.

[0037] In this embodiment, a second abutment pulley 28 is rotatably provided at the end of the rear pushing part 26. A third abutment pulley 29 is rotatably provided at the front end of the rear transmission slide plate 25. Specifically, the second abutment pulley 28 contacts and abuts against the second switch component 800 to trigger the second switch component 800 to open. The action of the second abutment pulley 28 reduces wear on the second switch component 800 and improves the service life of the structure. Furthermore, the third abutment pulley 29 improves the stability and smoothness of the transmission slide plate during movement; the pulley design reduces wear.

[0038] In this embodiment, the reset component includes a first spring 9, which is located between the transmission slide 6 and the guide fixing seat 7, with both ends of the first spring 9 connected to the transmission slide 6 and the guide fixing seat 7, respectively. The reset component also includes a second spring 10, which is located between the pull plate 4 and the connecting arm 100, with both ends of the first spring 9 connected to the pull plate 4 and the connecting arm 100, respectively. Specifically, under the above configuration, when the control body 3 is not pressed, the elastic force of the first spring 9 and the second spring 10 pushes the control body 3 (which can be a button), the front transmission slide plate 5, the rear transmission slide plate 25, and the transmission slide 6 back to their initial state. The lever component 500 no longer acts on the top block 1, causing the top block 1 to remain pressed against the universal ball head 2 under the force of the pressing component 300. Simultaneously, the first switch component 700 and the second switch component 800 reset and lock, locking the external gas spring 30.

[0039] In this embodiment, the linkage control mechanism further includes a resistance adjustment component 600. The resistance adjustment component 600 includes a connecting bracket 16, a resistance adjustment screw 17, a transmission bevel gear 18, a drive bevel gear 19, and a resistance adjustment element 20. The connecting bracket 16 is installed within the connecting support arm 100. The resistance adjustment element 20 is rotatably mounted on the connecting support arm 100 and the connecting bracket 16. One end of the resistance adjustment element 20 protrudes into the connecting support arm 100 and is fixedly sleeved with the drive bevel gear 19. One end of the adjusting screw 17 slides through the top block 1, and the other end of the resistance adjusting screw 17 is rotatably connected to the connecting bracket 16. The transmission bevel gear 18 is fixedly sleeved on the other end of the resistance adjusting screw 17, and the transmission bevel gear 18 meshes with the drive bevel gear 19 for transmission. The elastic element 15 is movably sleeved on the outer periphery of the resistance adjusting screw 17, and the pressure block 14 is threadedly sleeved on the outer periphery of the resistance adjusting screw 17. The pressure block 14 and the top block 1 respectively slide against the inner wall of the connecting support arm 100. Preferably, the resistance adjusting element 20 is a bolt or a pin.

[0040] The connecting arm 100 has a movable ball cavity 21 at its front end. The universal ball head 2 is movably disposed within the movable ball cavity 21. The front end of the top block 1 extends into the movable ball cavity 21 and abuts against the universal ball head 2. The universal ball head 2 is provided with a threaded connection part 22 for connecting with external equipment. Specifically, the universal ball head 2 is movably and limiter disposed within the movable ball cavity 21 to restrict the range of motion of the universal ball head 2, ensuring that the connected external equipment moves within the limited range.

[0041] Specifically, under the above configuration, rotating the resistance adjusting component 20 drives the drive bevel gear 19 to rotate, which in turn drives the transmission bevel gear 18 to rotate, which in turn drives the resistance adjusting screw 17 to rotate. This causes the pressure block 14 to move back and forth along the resistance adjusting screw 17. When the pressure block 14 moves forward toward the universal ball head 2, the elastic component 15 pushes the top block 1 forward to increase the frictional resistance between the top block 1 and the universal ball head 2. When the resistance adjusting component 20 is rotated in the opposite direction, the pressure block 14 is moved away from the universal ball head 2 to reduce the frictional resistance between the top block 1 and the universal ball head 2. Under the above configuration, the frictional resistance is adjustable, adaptable to external equipment of various weights, and can meet the various angle requirements of external equipment during operation.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A linkage control mechanism, characterized in that: The device includes a connecting arm, a top block, a linkage control assembly mounted on the connecting arm, and a clamping assembly installed inside the connecting arm. The top block is slidably disposed at the front end of the connecting arm, and the front end of the top block is used to abut against an external universal ball joint movably disposed at the front end of the connecting arm. The clamping assembly is used to push the top block against the external universal ball joint. The connecting arm is also equipped with a first switch component and a second switch component. The linkage control assembly includes a control body, a pull plate, a front joint transmission component, a rear joint transmission component, a reset component, and a lever component. The control body, the front joint transmission component, the rear joint transmission component, the reset component, and the lever component are movably mounted on the connecting support arm. One end of the control body is connected to the pull plate, and the pull plate is connected to the front joint transmission component and the rear joint transmission component. The front joint transmission component is provided with a first transmission part and a second transmission part. The first transmission part is used to drive the top block to release the external universal ball joint, the second transmission part is used to drive the first switch component to open, the rear joint transmission component is used to drive the second switch component to open, and the reset component is used to drive the control body, the front joint transmission component, and the rear joint transmission component to reset.

2. The linkage control mechanism according to claim 1, characterized in that: The front joint transmission component includes a front transmission slide plate, a transmission slide block, and a guide fixing seat. The control body is rotatably connected to the connecting support arm. One end of the control body is connected to the upper end of the pull plate. One end of the front transmission slide plate is connected to the pull plate. The other end of the front transmission slide plate is connected to the upper end of the transmission slide block. The guide fixing seat is fixedly installed inside the connecting support arm. The lower end of the transmission slide block is slidably connected to the guide fixing seat. Both sides of the transmission slide block are slidably connected to the lever component.

3. The linkage control mechanism according to claim 2, characterized in that: The transmission slide is provided with first abutting pulleys on both sides.

4. The linkage control mechanism according to claim 2, characterized in that: The reset component includes a first spring, which is located between the transmission slide and the guide fixing seat, with both ends of the first spring connected to the transmission slide and the guide fixing seat respectively.

5. The linkage control mechanism according to claim 2, characterized in that: The reset component includes a second spring located between the pull plate and the connecting arm, and the two ends of the first spring are respectively connected to the pull plate and the connecting arm.

6. The linkage control mechanism according to claim 2, characterized in that: The lever component includes two lever arms arranged opposite each other. One end of each lever arm is inclinedly provided with a release guide. The transmission slide is located between one end of the two lever arms. The distance between the release guides of the two lever arms gradually decreases along one end of the lever arm. The other end of each lever arm is rotatably connected to the front end of the connecting arm. The top block has grooves on both sides, and the front end of the other end of the lever arm extends into the groove.

7. The linkage control mechanism according to claim 1, characterized in that: The rear joint transmission component includes a rear push block, a rear transmission slide plate, and a rear push portion disposed at the end of the rear transmission slide plate. The rear push portion is used to drive the second switch component to open. One end of the rear push block is hinged to the lower end of the pull plate, and the other end of the rear push block is hinged to the front end of the rear transmission slide plate. A rear transmission guide groove is provided through the connecting arm, and the rear transmission slide plate is slidably disposed in the rear transmission guide groove.

8. The linkage control mechanism according to claim 7, characterized in that: The end of the rear pushing part is rotatably provided with a second abutting pulley.

9. A linkage control mechanism according to claim 7, characterized in that: The front end of the rear drive slide plate is provided with a third abutting pulley.

10. A linkage control mechanism according to claim 2, characterized in that: The clamping assembly includes a pressure block and an elastic element. The elastic element is located between the pressure block and the top block. Both ends of the elastic element are connected to the pressure block and the top block, respectively. The pressure block is installed inside the connecting support arm.

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