Limiting device with linkage mechanism

Abstract

The utility model relates to a limiting device with a linkage mechanism, and belongs to the technical field of mechanical device limiting. The device comprises a machine shell and a linkage mechanism, the machine shell is a hollow mechanism which is internally provided with an upward cavity, and a positioning pin is slidably connected into the machine shell; the linkage mechanism is located in the machine shell and comprises a rotating shaft rotationally connected to the machine shell, and the rotating shaft is connected with a connecting rod driving the positioning pin to stretch out of or retract into the machine shell and a swing arm driving the connecting rod to rotate. Through the arrangement of the linkage mechanism, the limiting device can well limit and fix a limited device by utilizing a simple mechanism, the limiting reliability can be met on the premise that the structure of the mechanism is simplified, later maintenance and overhaul are facilitated, and the quality of limiting work is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of mechanical device limit, and particularly relates to a limit device with a linkage mechanism. Background Art

[0002] Currently, limit devices, especially those for sliding supports, mostly adopt electric, pneumatic, hydraulic technologies or their combinations to achieve rapid limiting of the device. However, such limit devices have problems such as complex structures, high usage costs, inconvenient maintenance, and low reliability.

[0003] Therefore, it is necessary to design a new type of mechanical linkage limit device, which has the advantages of low cost, simple disassembly and assembly, reliable use, and convenient maintenance. Summary of the Invention

[0004] The embodiments of this application provide a limit device with a linkage mechanism to solve the problems in the related art that the current limit devices have complex structures, poor reliability, and affect the working quality.

[0005] The embodiments of this application provide a limit device with a linkage mechanism, including:

[0006] A housing, which is a hollow structure with a cavity inside and the cavity facing upwards, and a positioning pin is slidably connected inside the housing;

[0007] A linkage mechanism, which is located inside the housing, includes a rotating shaft rotatably connected to the housing, a connecting rod connected to the rotating shaft to drive the positioning pin to extend out of or retract into the housing, and a swing arm for driving the connecting rod to rotate.

[0008] In some embodiments, an arc surface is provided at the top of the swing arm.

[0009] In some embodiments, the swing arm and the connecting rod are arranged at an obtuse angle.

[0010] In some embodiments, the cavity includes a first cavity for accommodating the linkage mechanism and a second cavity for accommodating the positioning pin.

[0011] In some embodiments, a sleeve for accommodating the positioning pin is provided at the bottom of the second cavity, a bottom cover for placing the positioning pin is provided at the bottom of the sleeve, and a flexible gasket is provided on the top surface of the bottom cover.

[0012] In some embodiments, a strip-shaped opening for the connecting rod to slide is provided along the height direction on the side wall of the sleeve.

[0013] In some embodiments, a first mounting seat and a second mounting seat arranged relative to the first mounting seat are disposed at the bottom of the housing, and both ends of the rotating shaft are rotatably connected to the first mounting seat and the second mounting seat respectively.

[0014] In some embodiments, a base is further included, and the base is arranged on the housing base to support the housing.

[0015] In some embodiments, the base includes two fixing plates spaced apart in the height direction, and a fixing frame fixedly disposed around the fixing plates.

[0016] In some embodiments, the fixing frame is in a triangular structure.

[0017] The beneficial effects of the technical solution provided by this application include:

[0018] An embodiment of the present application provides a limiting device with a linkage mechanism, including a casing and a linkage mechanism, wherein the casing is a hollow mechanism with a cavity inside and the cavity facing upward, and a positioning pin is slidably connected inside the casing; the linkage mechanism is located inside the casing, and includes a rotating shaft rotatably connected to the casing, a connecting rod driving the positioning pin to extend or retract into the casing, and a swing arm driving the connecting rod to rotate.

[0019] In actual use, the casing serves as the main structure of the entire limiting device, and a cavity is provided inside the casing to accommodate the linkage mechanism and the positioning pin. The upward design of the cavity facilitates the extension and retraction of the positioning pin. The casing not only protects the internal mechanism from external interference, but also ensures the smooth progress of the limiting action. The linkage mechanism includes a rotating shaft, a connecting rod and a swing arm. The rotating shaft is rotatably connected to the casing and serves as the central axis of the entire linkage mechanism. The connecting rod is connected to the rotating shaft, and the rotation of the rotating shaft drives the connecting rod to move. The swing arm is connected to the connecting rod, and the swing of the swing arm drives the connecting rod to rotate, thereby pushing the positioning pin to extend or retract into the casing. When the limited device, such as a bracket plate with a positioning hole, is placed on the casing, the contact plate of the bracket plate contacts the swing arm, driving the swing arm to drive the rotating shaft to rotate, the rotating shaft drives the connecting rod to rotate, the connecting rod rotates, and then pushes the positioning pin to extend and dock with the positioning hole of the bracket plate, thereby limiting and fixing the bracket plate well. The present application uses a simple mechanism through the setting of a linkage mechanism to enable the limiting device to limit and fix the limited device well. It can meet the reliability of the limitation while simplifying the mechanism structure, and is convenient for later maintenance and repair, thereby ensuring the quality of the limitation work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0021] Figure 1 Schematic diagram of the overall structure of the device provided by the embodiment of the present application;

[0022] Figure 2 is Figure 1 front view of;

[0023] Figure 3 is Figure 1 side view of;

[0024] Figure 4 is Figure 1 top view of;

[0025] Figure 5 Schematic diagram of the casing;

[0026] Figure 6 Schematic diagram of the device and the device to be limited of the present application.

[0027] Reference numerals:

[0028] 2, base; 4, device to be limited; 11, casing; 12, sleeve; 13, bottom cover; 14, connecting rod; 15, swing arm; 16, first mounting seat; 17, second mounting seat; 18, end cover; 19, positioning pin; 21, fixing plate; 22, fixing bracket; 31, first cavity; 32, second cavity; 110, rotating shaft. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0030] The embodiment of the present application provides a limiting device with a linkage mechanism, which can solve the problems in the related art that the current limiting device has a complex structure, poor reliability and affects the working quality.

[0031] See Figures 1 to 3 and Figure 6As shown, an embodiment of the present application provides a limiting device with a linkage mechanism, including a housing 11 and a linkage mechanism, wherein the housing 11 is a hollow mechanism with a cavity provided inside and the cavity facing upward, and a positioning pin 19 is slidably connected inside the housing 11; the linkage mechanism is located inside the housing 11, and includes a rotating shaft 110 rotatably connected to the housing 11, and a connecting rod 14 is connected to the rotating shaft 110 for driving the positioning pin 19 to extend or retract into the housing 11, and a swing arm 15 for driving the connecting rod 14 to rotate.

[0032] In actual use, the housing 11 serves as the main structure of the entire limiting device, and a cavity is provided inside the housing 11 for accommodating the linkage mechanism and the positioning pin 19. The upward design of the cavity facilitates the extension and retraction of the positioning pin 19. The housing 11 not only protects the internal mechanism from external interference, but also ensures the smooth progress of the limiting action. The linkage mechanism includes a rotating shaft 110, a connecting rod 14 and a swing arm 15. The rotating shaft 110 is rotatably connected in the housing 11 and serves as the central axis of the entire linkage mechanism. The connecting rod 14 is connected to the rotating shaft 110, and the rotation of the rotating shaft 110 drives the connecting rod 14 to move. The swing arm 15 is connected to the connecting rod 14, and the swing of the swing arm 15 drives the connecting rod 14 to rotate, thereby pushing the positioning pin 19 to extend or retract into the housing 11. When the limited device 4, such as a bracket plate with a positioning hole, is placed on the casing 11, the contact plate of the bracket plate contacts the swing arm 15, driving the swing arm 15 to drive the rotating shaft 110 to rotate, and the rotating shaft 110 drives the connecting rod 14 to rotate. The connecting rod 14 rotates, thereby pushing the positioning pin 19 to extend and dock with the positioning hole of the bracket plate, thereby well limiting and fixing the bracket plate. The present application, through the setting of a linkage mechanism and a simple mechanism, can enable the limiting device to well limit and fix the limited device 4, and can meet the reliability of the limitation while simplifying the mechanism structure, and is convenient for later maintenance and inspection, thereby ensuring the quality of the limitation work.

[0033] In some optional embodiments, such as Figures 1 to 3 As shown, a circular arc surface is provided on the top of the swing arm 15. The circular arc surface design on the top of the swing arm 15 helps to achieve a smoother resistance swinging action. When the limiting device 4 resists the swing arm 15, the swing arm 15 can be rotated immediately and can prevent mutual scratching between structures.

[0034] In some optional embodiments, the swing arm 15 is arranged at an obtuse angle to the connecting rod 14. The obtuse angle arrangement between the swing arm 15 and the connecting rod 14 optimizes the force transmission efficiency, can improve the reliability of the positioning pin 19 extending, and thus ensure the reliability of the limit.

[0035] In some optional embodiments, such as Figures 3 to 5As shown, the cavity includes a first cavity 31 for accommodating the linkage mechanism and a second cavity 32 for accommodating the positioning pin 19. The cavity in the housing 11 is divided into two parts. The first cavity 31 is used to accommodate the linkage mechanism to ensure sufficient movement space for each component; the second cavity 32 is specifically used to accommodate the positioning pin 19 to avoid interference with other components.

[0036] In some alternative embodiments, such as Figures 2 to 5 As shown, a sleeve 12 for accommodating the positioning pin 19 is provided at the bottom of the second cavity 32. A bottom cover 13 for placing the positioning pin 19 is provided at the bottom of the sleeve 12, and a flexible gasket is provided on the top surface of the bottom cover 13. In some alternative embodiments, a strip-shaped opening for the sliding of the connecting rod 14 is provided along the height direction on the side wall of the sleeve 12. The sleeve 12 is provided at the bottom of the second cavity 32 for accommodating the positioning pin 19. A bottom cover 13 for placing the positioning pin 19 is provided at the bottom of the sleeve 12, and a flexible gasket is provided on the top surface of the bottom cover 13. The flexible gasket can reduce the friction between the positioning pin 19 and the bottom cover 13 and extend the service life. The strip-shaped opening on the side wall of the sleeve 12 allows the connecting rod 14 to slide smoothly when pushing the positioning pin 19.

[0037] In some alternative embodiments, a first mounting seat 16 and a second mounting seat 17 opposite to the first mounting seat 16 are provided at the bottom of the housing 11. Both ends of the rotating shaft 110 are rotatably connected to the first mounting seat 16 and the second mounting seat 17 respectively. An end cover 18 for limiting is installed at the end of the second mounting seat 17. The first mounting seat 16 and the second mounting seat 17 are respectively provided at the bottom of the housing 11 to support and rotatably connect both ends of the rotating shaft 110. These two mounting seats ensure the stable rotation of the rotating shaft 110, thus ensuring the reliable operation of the entire linkage mechanism.

[0038] In some alternative embodiments, such as Figure 1 As shown, a base 2 is further included. The base 2 is provided at the base of the housing 11 and is used to support the housing 11. The base 2 includes two fixing plates 21 spaced along the height direction, and a fixing frame 22 fixedly provided around the fixing plates 21. In some alternative embodiments, the fixing frame 22 has a triangular structure. The base 2 is provided below the housing 11 and is used to support the entire limiting device. The base 2 includes two fixing plates 21 spaced along the height direction and a fixing frame 22 fixedly provided around the fixing plates 21. The fixing frame 22 has a triangular structure, which not only enhances the stability of the base 2 but also facilitates the firm installation of the limiting device on a workbench or other fixed structures.

[0039] The limiting device with a linkage mechanism of the present application includes a housing 11 and a linkage mechanism. The housing 11 is a hollow mechanism with a cavity inside and the cavity facing upward. A positioning pin 19 is slidably connected inside the housing 11; the linkage mechanism is located inside the housing 11, and includes a rotating shaft 110 rotatably connected to the housing 11, and the rotating shaft 110 is connected to a connecting rod 14 that drives the positioning pin 19 to extend or retract into the housing 11, and a swing arm 15 that drives the connecting rod 14 to rotate.

[0040] In actual use, the housing 11 serves as the main structure of the entire limiting device, and a cavity is provided inside the housing 11 for accommodating the linkage mechanism and the positioning pin 19. The upward design of the cavity facilitates the extension and retraction of the positioning pin 19. The housing 11 not only protects the internal mechanism from external interference, but also ensures the smooth progress of the limiting action. The linkage mechanism includes a rotating shaft 110, a connecting rod 14 and a swing arm 15. The rotating shaft 110 is rotatably connected in the housing 11 and serves as the central axis of the entire linkage mechanism. The connecting rod 14 is connected to the rotating shaft 110, and the rotation of the rotating shaft 110 drives the connecting rod 14 to move. The swing arm 15 is connected to the connecting rod 14, and the swing of the swing arm 15 drives the connecting rod 14 to rotate, thereby pushing the positioning pin 19 to extend or retract into the housing 11. When the limited device 4, such as a bracket plate with a positioning hole, is placed on the casing 11, the contact plate of the bracket plate contacts the swing arm 15, driving the swing arm 15 to drive the rotating shaft 110 to rotate, and the rotating shaft 110 drives the connecting rod 14 to rotate. The connecting rod 14 rotates, thereby pushing the positioning pin 19 to extend and dock with the positioning hole of the bracket plate, thereby well limiting and fixing the bracket plate. The present application, through the setting of a linkage mechanism and a simple mechanism, can enable the limiting device to well limit and fix the limited device 4, and can meet the reliability of the limitation while simplifying the mechanism structure, and is convenient for later maintenance and inspection, thereby ensuring the quality of the limitation work.

[0041] The limiting device with linkage mechanism provided in the present application achieves the goals of simple structure, low cost, reliable use and convenient maintenance through precise coordination and optimized design of various components, and provides an effective solution for the precise limiting of moving parts such as the limited device 4, such as sliding brackets.

[0042] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0043] It should be noted that in the present application, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0044] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A limiting device with a linkage mechanism, characterized in that, Including: A housing (11), the housing (11) being a hollow mechanism with a cavity inside and the cavity facing upwards, and a positioning pin (19) being slidably connected inside the housing (11); A linkage mechanism, the linkage mechanism being located inside the housing (11), including a rotating shaft (110) rotatably connected to the housing (11), a connecting rod (14) connected to the rotating shaft (110) for driving the positioning pin (19) to extend or retract from the housing (11), and a swing arm (15) for driving the connecting rod (14) to rotate.

2. The limit device with a linkage mechanism according to claim 1, wherein: The top of the swing arm (15) is provided with an arc surface.

3. The limit device with a linkage mechanism according to claim 1, wherein: The swing arm (15) and the connecting rod (14) are arranged at an obtuse angle.

4. The limit device with a linkage mechanism according to claim 1, wherein: The cavity includes a first cavity (31) for accommodating the linkage mechanism and a second cavity (32) for accommodating the positioning pin (19).

5. The limit device with a linkage mechanism according to claim 4, wherein: A sleeve (12) for accommodating the positioning pin (19) is provided at the bottom of the second cavity (32), a bottom cover (13) for placing the positioning pin (19) is provided at the bottom of the sleeve (12), and a flexible gasket is provided on the top surface of the bottom cover (13).

6. The limit device with a linkage mechanism according to claim 5, wherein: A strip-shaped opening for the connecting rod (14) to slide is provided on the side wall of the sleeve (12) along the height direction.

7. The limit device with a linkage mechanism according to claim 1, wherein: A first mounting seat (16) and a second mounting seat (17) opposite to the first mounting seat (16) are provided at the bottom of the housing (11), and both ends of the rotating shaft (110) are respectively rotatably connected to the first mounting seat (16) and the second mounting seat (17).

8. The limit device with a linkage mechanism according to claim 1, wherein: It further includes a base (2), the base (2) being provided at the base of the housing (11) for supporting the housing (11).

9. The limit device with a linkage mechanism according to claim 8, wherein: The base (2) includes two fixing plates (21) spaced apart along the height direction, and a fixing frame (22) fixedly provided around the fixing plates (21).

10. The limit device with a linkage mechanism according to claim 9, wherein: The fixing frame (22) has a triangular structure.

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