An angle adjustment mechanism

Abstract

This utility model belongs to the technical field of angle adjustment devices, specifically relating to an angle adjustment mechanism, including: a positioning plate and a swinging component. The swinging component is rotatably connected to the positioning plate and can move radially along the positioning plate. The positioning plate has an arc-shaped groove surrounding the connection position of the swinging component. Several slots are spaced apart along the inner wall of the arc-shaped groove and deepen towards the center of the positioning plate. The swinging component has a pin that extends into the arc-shaped groove and can movably engage with the slots to restrict the movement of the swinging component. The swinging component also has an elastic element for driving its radial movement so that the pin falls into the slot. This utility model applies a radial pulling force away from the center of the positioning plate to the swinging component, causing the swinging component to move the pin within the arc-shaped groove. By rotating the swinging component, the pin can be positioned at any of the slots. Under the action of the elastic element, the pin falls into the slot and engages, achieving locking after the swinging component rotates.

Description

Technical Field

[0001] This utility model belongs to the field of angle adjustment device technology, and specifically relates to an angle adjustment mechanism. Background Technology

[0002] Angle adjustment mechanisms are key mechanical components widely used in industrial equipment, medical devices, home appliances, office furniture, photographic and video equipment, aerospace, and robotics, among other fields. Their core function is to reliably and conveniently change the relative angle between two or more connected components and maintain it stably once the target angle is reached. This adjustment capability is crucial for achieving the functionality, adaptability, ergonomics, and performance optimization of equipment.

[0003] In view of this, the present invention provides an angle adjustment mechanism to meet market demand. Utility Model Content

[0004] To achieve the above objectives, the present invention provides the following technical solution: an angle adjustment mechanism, comprising: a positioning disk (1) and a swing member (2), the swing member (2) being rotatably connected to the positioning disk (1) and being able to move radially along the positioning disk (1), the positioning disk (1) being provided with an arc-shaped groove (11) surrounding the connection position of the swing member (2), and a plurality of slots (111) being provided at intervals along the inner sidewall of the arc-shaped groove (11) and deepening toward the center of the positioning disk (1), the swing member (2) being provided with a pin (4) extending into the arc-shaped groove (11) and being able to move in cooperation with the slots (111) to restrict the movement of the swing member (2), and the swing member (2) being provided with an elastic member (5) for driving its radial movement so that the pin (4) falls into the slots (111).

[0005] As a preferred angle adjustment mechanism of this utility model, a connecting shaft (6) and a sliding groove (24) are respectively provided between the opposite surfaces of the positioning disk (1) and the swing member (2), and the end of the connecting shaft (6) is movably connected in the sliding groove (24).

[0006] As a preferred angle adjustment mechanism of this utility model, the two ends of the elastic element (5) are respectively connected to the connecting shaft (6) and the pin (4) to provide a tensioning force pointing in the axial direction of the connecting shaft (6).

[0007] As a preferred angle adjustment mechanism of this utility model, the connecting shaft (6) is axially connected to the center of the positioning disk (1).

[0008] As a preferred angle adjustment mechanism of this utility model, the positioning disk (1) has a threaded hole (12) at its center, and one end of the connecting shaft (6) is threaded into the threaded hole (12).

[0009] As a preferred angle adjustment mechanism of this utility model, the other end of the connecting shaft (6) extends into a groove (24), the extended end of the connecting shaft (6) is fitted with a connecting ring (7), the circumference of the connecting ring (7) is connected with a protrusion (71), and the end of the elastic element (5) away from the pin (4) is connected to the protrusion (71).

[0010] As a preferred angle adjustment mechanism of the present invention, the swing member (2) includes a first swing arm (21) and a second swing arm (23) arranged in parallel, and an end arm (22) connecting the first swing arm (21) and the second swing arm (23).

[0011] As a preferred angle adjustment mechanism of the present invention, the slide groove (24) is opened on the first swing arm (21), and at least a part of the pin (4) is located between the first swing arm (21) and the second swing arm (23) and connected to one end of the elastic member (5).

[0012] As a preferred angle adjustment mechanism of this utility model, the surfaces of the first swing arm (21) and the second swing arm (23) are respectively provided with a first through hole (27) and a second through hole (28) provided with an arc groove (11), and the pin (4) passes through the first through hole (27) and the second through hole (28) to extend into the arc groove (11).

[0013] As a preferred angle adjustment mechanism of this utility model, the first swing arm (21) and the end arm (22) are integrally connected, and at least one set of threaded holes (25) and a third through hole (26) corresponding to the threaded holes (25) are respectively opened between the opposite surfaces of the end arm (22) and the second swing arm (23). The second swing arm (23) and the end arm (22) are detachably connected by bolts.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention applies a radial pulling force away from the center of the positioning plate to the swing component, which causes the swing component to move the pin in the arc groove. By rotating the swing component, the pin can be positioned at any of the opening slots. By releasing the swing component, the pin can fall into the slot and engage under the action of the elastic element, thus locking the swing component after rotation and adjusting the relative angle between the swing component and the positioning plate. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a top view of the structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the exploded structure of this utility model;

[0021] Figure 5 This is a schematic diagram illustrating the application scenario of this utility model.

[0022] In the diagram: 1. Positioning plate; 11. Arc groove; 111. Bayonet; 12. Threaded hole one; 13. Positioning hole; 2. Swinging component; 21. First swing arm; 22. End arm; 23. Second swing arm; 24. Slide groove; 25. Threaded hole two; 26. Third through hole; 27. First through hole; 28. Second through hole; 4. Pin; 5. Elastic component; 6. Connecting shaft; 7. Connecting ring; 71. Protruding foot; 8. Auxiliary equipment to be used; 9. Handrail. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model relates to an angle adjustment mechanism, such as Figures 1-3 As shown, the device includes a positioning disk 1 and a swing member 2 rotatably connected to the positioning disk 1 and capable of moving radially along the positioning disk 1. An arc-shaped groove 11 is provided on the positioning disk 1, surrounding the connection position of the swing member 2. Several arc-shaped slots 111 are provided along the inner sidewall of the arc-shaped groove 11, which are spaced apart and deepened towards the center of the positioning disk 1. For example, including but not limited to "U" shapes. A pin 4 is provided on the swing member 2, which extends into the arc-shaped groove 11. An elastic member 5 is also provided on the swing member 2 to drive its radial movement so that the pin 4 falls into the slot 111. In this embodiment, the elastic member 5 is a tension spring, which can provide axial tension force when the end is stretched.

[0025] Specifically, such as Figure 4As shown, a connecting shaft 6 and a sliding groove 24 are respectively provided between the opposing surfaces of the positioning disk 1 and the swing member 2. The end of the connecting shaft 6 is movably connected to the sliding groove 24. The connecting shaft 6 is vertically connected to the surface of the positioning disk 1 or its center, and its radial dimension is adapted to the width of the sliding groove 24, and its end extends into the sliding groove 24 so that it can rotate with the sliding groove 24 and slide along the length direction of the sliding groove 24.

[0026] Furthermore, the two ends of the elastic element 5 are respectively connected to the connecting shaft 6 and the pin 4 to provide a tension force pointing in the direction of the axis of the connecting shaft 6. It should be noted that, in its natural state, the elastic element 5 constantly tensions the swing element 2.

[0027] Furthermore, a threaded hole 12 is provided at the center of the positioning disk 1, and one end of the connecting shaft 6 is threaded into the threaded hole 12. The threaded connection between the connecting shaft 6 and the threaded hole 12 facilitates easy assembly and disassembly of the two components, and also facilitates the connection and disassembly between the swinging component 2 and the positioning disk 1.

[0028] Furthermore, a groove 24 extends from the other end of the connecting shaft 6, and a connecting ring 7 is fitted onto the extended end of the connecting shaft 6. A protrusion 71 is integrally connected to the periphery of the connecting ring 7, and the end of the elastic element 5 away from the pin 4 is connected to the protrusion 71. By extending the protrusion 71, the length of the elastic element 5 stretched in its natural state can be shortened, thereby improving the service life of the elastic element 5 and maintaining a long-lasting tension.

[0029] Furthermore, the swing member 2 includes a first swing arm 21 and a second swing arm 23 arranged in parallel, and an end arm 22 integrally connected between the first swing arm 21 and the second swing arm 23. A groove 24 is formed on the first swing arm 21. The surfaces of the first swing arm 21 and the second swing arm 23 are respectively provided with a first through hole 27 and a second through hole 28 that are respectively provided with an arc-shaped groove 11. The pin 4 passes through the first through hole 27 and the second through hole 28 to extend into the arc-shaped groove 11. Alternatively, the inner walls of the first through hole 27 and / or the second through hole 28 can be set as threaded structures, and threaded ribs adapted to the threaded structure can be formed on the periphery of the pin 4. By threading the pin 4 to the first through hole 27 and / or the second through hole 28, disassembly and assembly can be easily performed.

[0030] Meanwhile, to facilitate the assembly and disassembly of the second swing arm 23 and the first swing arm 21, the first swing arm 21 and the end arm 22 can be integrally connected. At least one set of threaded holes 25 and corresponding third through holes 26 are respectively provided between the opposite surfaces of the end arm 22 and the second swing arm 23. The second swing arm 23 and the first swing arm 21 can be detached by using bolts passing through the threaded connection between the third through hole 26 and the threaded hole 25.

[0031] The following is a detailed description of the specific operating scenarios of this utility model: (in conjunction with...) Figure 5 As shown, according to actual needs, several positioning holes 13 can be opened on the surface of the positioning disk 1. Using the positioning holes 13, the positioning disks 1 of the two sets of angle adjustment mechanisms can be installed on both sides of the auxiliary equipment 8 by fasteners, and the components on the auxiliary equipment 8 that need to be adjusted in angle can be connected between the swing arms of the swinging parts 2 of the two sets of angle adjustment mechanisms. The auxiliary equipment 8 can be, for example, a trolley, a seat that needs to be adjusted in angle, a sofa, etc. Taking a trolley as an example: connect the two ends of the trolley armrest 9 to the swing arms of the swing parts 2 of the two sets of angle adjustment mechanisms respectively. The positioning plates 1 of the two sets of angle adjustment mechanisms are respectively installed on both sides of the trolley body. By pulling the armrest 9, the swing parts 2 can move radially, so that the pin 4 is located in the arc groove 11 while the armrest 9 is rotated. By controlling the rotation position, the pin 4 is placed in the required locking slot 111. Then release the armrest 9. Under the action of the elastic element 5, it pulls the swing parts 2 to move radially, so that the pin 4 is locked in the locking slot 111, so as to realize the adjustment and fixation of the armrest 9 angle, thus facilitating use.

[0032] In scenarios such as seats, the positioning discs 1 of the two sets of angle adjustment mechanisms can be installed on both sides of the seat cushion, and the seat back can be installed between the swing arms of the swing components 2 of the two sets of angle adjustment mechanisms. Similarly, by pulling the backrest, the angles of the two can be adjusted to meet the needs.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An angle adjustment mechanism, characterized by, include: The positioning plate (1) and the swing member (2) are rotatably connected to the positioning plate (1) and can move radially along the positioning plate (1). The positioning plate (1) is provided with an arc groove (11) surrounding the connection position of the swing member (2). Several slots (111) are provided on the inner side wall of the arc groove (11) and deepened towards the center of the positioning plate (1). The swing member (2) is provided with a pin (4) that extends into the arc groove (11) and can move with the slots (111) to restrict the movement of the swing member (2). The swing member (2) is also provided with an elastic member (5) for driving its radial movement so that the pin (4) falls into the slots (111).

2. The angular adjustment mechanism of claim 1, wherein: A connecting shaft (6) and a slide groove (24) are respectively provided between the opposite surfaces of the positioning plate (1) and the swing member (2), and the end of the connecting shaft (6) is movably connected in the slide groove (24).

3. The angular adjustment mechanism of claim 2, wherein: The two ends of the elastic element (5) are connected to the connecting shaft (6) and the pin (4) respectively, so as to provide a tension force pointing in the axial direction of the connecting shaft (6).

4. The angular adjustment mechanism of claim 3, wherein: The connecting shaft (6) is axially connected to the center of the positioning disk (1).

5. An angle adjustment mechanism according to claim 4, characterised in that: A threaded hole (12) is provided at the center of the positioning plate (1), and one end of the connecting shaft (6) is threaded into the threaded hole (12).

6. An angle adjustment mechanism according to claim 5, characterised in that: The other end of the connecting shaft (6) extends into a groove (24), and a connecting ring (7) is sleeved on the extended end of the connecting shaft (6). A protrusion (71) is connected to the periphery of the connecting ring (7), and the end of the elastic element (5) away from the pin (4) is connected to the protrusion (71).

7. The angular adjustment mechanism of claim 2, wherein: The swing member (2) includes a first swing arm (21) and a second swing arm (23) arranged in parallel, and an end arm (22) connecting the first swing arm (21) and the second swing arm (23).

8. The angular adjustment mechanism of claim 7, wherein: The groove (24) is formed on the first swing arm (21), and at least a portion of the pin (4) is located between the first swing arm (21) and the second swing arm (23) and connected to one end of the elastic member (5).

9. An angle adjustment mechanism according to claim 8, characterised in that: The surfaces of the first swing arm (21) and the second swing arm (23) are respectively provided with a first through hole (27) and a second through hole (28) set in the opposite arc groove (11), and the pin (4) passes through the first through hole (27) and the second through hole (28) to extend into the arc groove (11).

10. An angle adjustment mechanism according to any of claims 7-9, characterized in that: The first swing arm (21) is integrally connected with the end arm (22), and at least one set of threaded holes (25) and a third through hole (26) corresponding to the threaded holes (25) are respectively opened between the opposite surfaces of the end arm (22) and the second swing arm (23). The second swing arm (23) and the end arm (22) are detachably connected by bolts.

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