Four-point linkage type bidirectional locking device
By designing a four-point linkage bidirectional locking device, the limit pin is synchronized by means of couplings, connecting rods, reducers and other mechanisms, the reliability and coordination performance reduction caused by the increase in the number of locking devices under the multi-point limit requirements of the equipment is solved, and the multi-point synchronous locking and unlocking function is achieved with simple operation, and the rotation torque and versatility of the locking point are improved.
Patent Information
- Application Number
- CN202421954497.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-13
AI Technical Summary
With the increase in equipment size and multi-point limit requirements, the number of locking devices increases, resulting in an increase in workload and a decrease in reliability and coordination performance.
A four-point linkage bidirectional locking device is designed, and the four limit pins are synchronized to carry out opposite or backward translational movement through coupling, connecting rod, reducer and other mechanisms, realizing the multi-point synchronous locking and unlocking function of the device.
It realizes the multi-point synchronous locking and unlocking function with simple and convenient operation. Each locking point has a stable rotation torque and a reasonable reduction ratio, which can absorb the concentric installation deviation caused by the long length of the connecting rod, which is more versatile and easy to expand.
Smart Images
Figure CN222924814U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a four - point linkage bidirectional locking device, belonging to the technical field of transmission locking mechanisms. Background Technique
[0002] As a specific mechanism for limiting and fastening the position of an object, the locking device is often used in various detachable equipment products. With the increase in equipment size and multi - point limiting requirements, it usually forces the number of locking devices to increase synchronously, reducing the reliability and coordination performance of the locking devices while increasing the workload. Content of the Utility Model
[0003] To solve the above - mentioned technical problems, the utility model provides a four - point linkage bidirectional locking device. The four - point linkage bidirectional locking device can synchronously drive four limit pins to perform translational motion in opposite or back - to - back directions through mechanisms such as a coupling, a connecting rod, and a reducer, thereby realizing the functions of multi - point synchronous locking and unlocking of the equipment, and the operation is simple and convenient.
[0004] The utility model is realized through the following technical solutions.
[0005] A four - point linkage bidirectional locking device provided by the utility model includes a coupling; the coupling is installed at the ends of two first connecting rods. One end of each of the two first connecting rods is respectively installed with a first locking mechanism and a second locking mechanism through the coupling in a linkage manner, and the two ends of the other first connecting rod are respectively installed with a second locking mechanism and a manual support through the coupling in a linkage manner, so that the first locking mechanism, the second locking mechanism, and the manual support are connected in series through the first connecting rod; the first locking mechanism and the second locking mechanism have the same structure and opposite directions.
[0006] The first locking mechanism is installed with the coupling through a reducer. The reducer is installed between two side support bases. There are a screw rod and a slider installed in a matching manner on the support bases. The reducer drives the screw rod to rotate, causing the slider to move along the screw rod.
[0007] A guide rail press block is fixed on the support base for limiting the slider.
[0008] A protective sleeve is fixed at the lower end of the slider, and the protective sleeve is sleeved on the screw rod.
[0009] A limit pin is provided at the upper end of the slider for locking.
[0010] The top end of the slider is of an inward - bending structure.
[0011] The manual support consists of a joint mounting seat. A manual joint is rotatably installed on the joint mounting seat. The manual joint is connected to the coupling through a flat keyway structure, and there is an interface at the other end of the manual joint relative to the end where the flat keyway structure is located for connecting a rotating tool.
[0012] The joint mounting base is fixed on the mounting base, and the mounting base is fixed on the tabletop or the ground.
[0013] A copper sleeve is sleeved on the manual joint for limiting the manual joint, and the copper sleeve is located in the built-in cavity of the joint mounting base.
[0014] The beneficial effects of the present utility model are as follows: The four limit pins can be synchronously driven to perform translational motion in opposite or back-to-back directions through mechanisms such as a coupling, a connecting rod, and a reducer, thereby realizing the functions of multi-point synchronous locking and unlocking of the equipment, and the operation is simple and convenient; Each locking point can have a stable rotational torque and a reasonable reduction ratio. At the same time, the elastic coupling can also absorb the concentricity installation deviation caused by the long length of the connecting rod to a large extent, with good versatility and easy expansion. Description of the Drawings
[0015] Figure 1 is a schematic structural diagram of at least one embodiment of the present utility model;
[0016] Figure 2 is Figure 1 the top view of
[0017] Figure 3 is Figure 2 the sectional view taken along the A-A plane of
[0018] Figure 4 is Figure 1 or Figure 2 the schematic structural diagram of the first locking mechanism in
[0019] Figure 5 is Figure 4 the sectional view taken along the B-B plane of
[0020] Figure 6 is Figure 4 the schematic structural diagram of the slider in
[0021] Figure 7 is Figure 1 or Figure 2 the schematic structural diagram of the manual support in
[0022] Figure 8 is Figure 7 the sectional view taken along the C-C plane of
[0023] In the figure: 100 - the first locking mechanism, 110 - the guide rail pressing block, 120 - the support base, 130 - the reducer, 140 - the slider, 150 - the limit pin, 160 - the protective sleeve, 170 - the screw, 200 - the first connecting rod, 300 - the second locking mechanism, 400 - the second connecting rod, 500 - the manual support, 510 - the mounting base, 520 - the manual joint, 530 - the joint mounting base, 540 - the copper sleeve, 600 - the coupling. Detailed implementation mode
[0024] The technical solution of the present utility model will be further described below, but the scope of protection is not limited thereto.
[0025] Embodiment 1
[0026] Based on a four-point linkage type bidirectional locking device as shown in Figures 1 to 8 One end of each of two first connecting rods 200 is provided with a coupling 600. One end of one of the first connecting rods 200 is linked with a first locking mechanism 100 and a second locking mechanism 300 through the coupling 600 respectively, and one end of the other first connecting rod 200 is linked with the second locking mechanism 300 and a manual support 500 through the coupling 600 respectively, so that the first locking mechanism 100, the second locking mechanism 300 and the manual support 500 are connected in series through the first connecting rod 200; the first locking mechanism 100 and the second locking mechanism 300 have the same structure and opposite directions.
[0027] Embodiment 2
[0028] Based on Embodiment 1, the first locking mechanism 100 is linked with the coupling 600 through a speed reducer 130. The speed reducer 130 is installed between two support bases 120 on both sides. A screw rod 170 and a slider 140 which are fitted and installed are arranged on the support base 120. The speed reducer 130 drives the screw rod 170 to rotate so that the slider 140 moves along the screw rod 170.
[0029] Furthermore, a guide rail press block 110 is fixed on the support base 120 for limiting the slider 140.
[0030] Furthermore, a protective sleeve 160 is fixed at the lower end of the slider 140, and the protective sleeve 160 is sleeved on the screw rod 170.
[0031] Furthermore, a limit pin 150 is arranged at the upper end of the slider 140 for locking.
[0032] Furthermore, the top end of the slider 140 is of an inwardly bent structure.
[0033] Embodiment 3
[0034] Based on Embodiment 1, the manual support 500 is composed of a joint mounting base 530. A manual joint 520 is rotatably installed on the joint mounting base 530. The manual joint 520 is connected to the coupling 600 through a flat key groove structure. An interface is arranged at the other end of the manual joint 520 relative to the end where the flat key groove structure is located for connecting a rotating tool.
[0035] Furthermore, the joint mounting base 530 is fixed on a mounting base 510, and the mounting base 510 is fixed on a tabletop or the ground.
[0036] Furthermore, a copper sleeve 540 is sleeved on the manual joint 520 for limiting the manual joint 520, and the copper sleeve 540 is located in the built-in cavity of the joint mounting seat 530.
[0037] Embodiment 4
[0038] Based on the above embodiments, the first locking mechanism 100 and the second locking mechanism 300 are connected by a first connecting rod 200. A coupling 600 is respectively connected to both ends of the first connecting rod 200. The second locking mechanism 300 and the manual support 500 are connected by a second connecting rod 400. Similarly, a coupling 600 is respectively connected to both ends of the second connecting rod 400. That is, each component is connected into a whole in a series manner. The first locking mechanism 100 and the second locking mechanism 300 have basically the same basic composition, except that their sliders and limit pins are arranged in a horizontal and vertical mirror image. The following takes the first locking mechanism as an example for illustration.
[0039] The first locking mechanism 100 includes a guide rail press block 110, a support base 120, a reducer 130, left / right sliders 140, a limit pin 150, a protective sleeve 160, a screw 170, etc. The support base 120 is arranged at the left and right ends of the reducer 130, and each part is connected into a whole through the screw 170. The left / right sliders 140 are provided with threaded holes and are sleeved into the screw 170. Protective sleeves 160 are arranged at both ends of the left / right sliders 140 to fix the sliders. Two guide rail press blocks 110 are arranged on the upper end surfaces of the left / right sliders 140. When the left / right sliders 140 move along the axial direction of the screw 170, the two guide rail press blocks 110 play a role in sliding limit for the left / right sliders 140.
[0040] The left / right sliders 140 are of special-shaped structures, with threaded holes provided at the lower ends, threaded holes for assembling the limit pin 150 provided at the upper ends, and T-shaped protruding platforms provided at both ends in the middle for the left / right sliders 140 to slide along the guide rail press block 110.
[0041] The manual support 500 mainly includes a mounting base 510, a manual joint 520, a joint mounting seat 530, a copper sleeve 540, etc. The manual joint 520 passes through the joint mounting seat 530, and the joint mounting seat 530 is connected to the mounting base 510 as a whole. A copper sleeve 540 is arranged between the manual joint 520 and the joint mounting seat 530. A flat key groove is provided at the left end of the manual joint for connecting with the coupling 600. The right end of the manual joint 520 is a directional structure, which can be externally connected to a manual rotating handle or an electric tool for torque input, so as to realize the function of one-point input and four-point synchronous locking.
Claims
1. A four-point linkage bidirectional locking device, comprising a coupling (600), characterized in that: The coupling (600) is installed at the ends of two first connecting rods (200), wherein the two ends of one of the first connecting rods (200) are respectively connected to install the first locking mechanism (100) and the second locking mechanism (300) through the coupling (600), and the two ends of the other first connecting rod (200) are respectively connected to install the second locking mechanism (300) and the manual support (500) through the coupling (600), so that the first locking mechanism (100), the second locking mechanism (300) and the manual support (500) are connected in series through the first connecting rod (200); the first locking mechanism (100) and the second locking mechanism (300) have the same structure and are in opposite directions.
2. The four-point linkage two-way locking device according to claim 1, characterized in that: The first locking mechanism (100) is linked to the coupling (600) via a reducer (130); the reducer (130) is installed between the support bases (120) on both sides; a screw rod (170) and a slider (140) are mounted on the support base (120) in a matching manner; the reducer (130) drives the screw rod (170) to rotate so that the slider (140) moves along the screw rod (170).
3. The four-point linkage two-way locking device according to claim 2, characterized in that: A guide rail pressing block (110) is fixed on the support base (120) for limiting the position of the sliding block (140).
4. The four-point linkage two-way locking device according to claim 2, characterized in that: A protective sleeve (160) is fixed to the lower end of the sliding block (140), and the protective sleeve (160) is sleeved on the screw rod (170).
5. The four-point linkage two-way locking device according to claim 2, characterized in that: The upper end of the slider (140) is provided with a limit pin (150) for locking.
6. The four-point linkage two-way locking device according to claim 2, characterized in that: The top end of the slider (140) is an inwardly curved structure.
7. The four-point linkage two-way locking device according to claim 1, characterized in that: The manual support (500) is composed of a joint mounting seat (530), on which a manual joint (520) is rotatably mounted. The manual joint (520) is connected to the coupling (600) via a flat keyway structure. The other end of the manual joint (520) opposite to the end where the flat keyway structure is located has an interface for connecting a rotating tool.
8. The four-point linkage two-way locking device according to claim 7, characterized in that: The joint mounting seat (530) is fixed on the mounting base (510), and the mounting base (510) is fixed on a table top or the ground.
9. The four-point linkage two-way locking device according to claim 7, characterized in that: The manual joint (520) is sleeved with a copper sleeve (540) for limiting the position of the manual joint (520), and the copper sleeve (540) is located in a built-in cavity of the joint mounting seat (530).