Multi-axial adjustable joint mechanism

Abstract

This utility model discloses a multi-axial adjustable joint mechanism, relating to the field of desk lamp joint technology. It includes a lower arm body, with an upper arm body at its top. A through-type mounting groove is provided on one side of the lower arm body. Two mirror-symmetrically arranged limiting blocks are slidably disposed within the mounting groove. A fine groove and a coarse groove are interconnected between the two limiting blocks. A shaft is adapted to fit within the fine groove. A circular plate is fixedly disposed at one end of the shaft, fitting into the cavity of the coarse groove. A rotating component is fixedly disposed at the other end of the shaft, rotatably connected to one end of the upper arm body. This multi-axial adjustable joint mechanism, by setting the limiting blocks, shaft, and circular plate, allows for quick disassembly of the rotating area of ​​the desk lamp by separating the two limiting blocks. The device is simple to operate and convenient to assemble and disassemble, effectively improving the ease of disassembly and assembly of various structures in the desk lamp joint mechanism, as well as the convenience of its maintenance and replacement.

Description

Technical Field

[0001] This utility model relates to the field of table lamp joint technology, specifically a multi-axial adjustable joint mechanism. Background Technology

[0002] A desk lamp generally refers to an electric lamp with a base that is placed on a table. The main function of a desk lamp is to provide illumination, facilitating reading, studying, and working. To increase the illumination range of the desk lamp, a multi-axial adjustable joint assembly is usually installed on the support arm.

[0003] In the prior art, a joint mechanism with authorization announcement number CN106594570A includes a lower arm and an upper arm, which are connected by a rotating shaft and a shaft hole. The lower arm is provided with a left pivot seat and a right pivot seat, and a connecting space is provided between the left pivot seat and the right pivot seat. The left pivot seat and the right pivot seat are provided with a shaft hole and a fixing hole. Multiple fixing holes are provided and are evenly arranged around the circumference of the shaft hole. The upper arm is provided with an elastic locking element, a limiting plate, a connecting seat and a bearing. The elastic locking element is evenly arranged relative to the bearing. When the upper arm is connected to the lower arm, the bearing is installed in the shaft hole so that the upper arm can rotate relative to the lower arm.

[0004] Currently, the joints of desk lamps use bearings to adjust the angle of the lamp head. However, the joints are prone to damage after long-term angle adjustment and use. The current joint structure of desk lamps generally uses a large number of screws for fixing and adopts an integrated design, which makes it difficult to repair and replace the joints after they are damaged. Utility Model Content

[0005] The purpose of this invention is to provide a multi-axial adjustable joint mechanism to solve the problem in the prior art that the joints of desk lamps are difficult to replace and repair after damage.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-axial adjustable joint mechanism, including a lower arm body, an upper arm body at the top of the lower arm body, a through mounting groove on one side of the lower arm body, two mirror-symmetrically arranged limiting blocks slidably arranged in the mounting groove, a fine groove and a coarse groove that are interconnected between the two limiting blocks, a shaft adapted in the fine groove, a circular plate fixedly arranged at one end of the shaft, the circular plate being adapted to the cavity of the coarse groove, a rotating component fixedly arranged at the other end of the shaft, the rotating component being rotatably connected to one end of the upper arm body, and a limiting component that is fixedly limited between the two limiting blocks.

[0007] Preferably, the rotating component includes a turntable fixed to one end of a shaft. Two mounting plates are fixedly mounted on the top of the turntable, and a connecting shaft is provided between the two mounting plates. The connecting shaft includes a first hexagonal block, a cylindrical rod, and a second hexagonal block that are fixedly connected to each other in sequence. A first hexagonal groove adapted to the first hexagonal block is opened on one side of the left mounting plate, and a cylindrical groove and a second hexagonal groove that are connected through the shaft are opened on one side of the right mounting plate. The cylindrical rod is adapted to the cavity of the cylindrical groove, and the second hexagonal block is adapted to the second hexagonal groove. A threaded groove is opened at the leftmost end of the connecting shaft, and a first bolt is threaded in the threaded groove. A rotating plate is rotatably sleeved on the outside of the cylindrical rod, and the rotating plate is fixed to one end of the upper arm.

[0008] Preferably, the limiting component includes a second bolt, and threaded holes are provided on one side of both limiting blocks, with the second bolt threaded into the cavity between the two threaded holes.

[0009] Preferably, a first pin groove is provided at the off-center of the bottom of the turntable, a first pin is slidably disposed in the first pin groove, a first spring is provided between the top of the first pin and the top wall inside the first pin groove, and a first slot is provided at the top of the lower arm body in a circumferential array, and the bottom end of the first pin is adapted to the cavity of the first slot.

[0010] Preferably, a first groove is provided on one side of the mounting plate, and a wire groove is formed between the bottom of the first groove and the top of the first pin groove. A first pull rod is slidably disposed in the first groove, and a wire rope is fixedly disposed between one end of the first pull rod and the top of the first pin. The wire rope slides in the cavity of the wire groove.

[0011] Preferably, a second pin groove is provided at the off-center position on one side of the mounting plate, a second pin is slidably disposed in the second pin groove, a second spring is provided between one end of the second pin and the inner wall of the first pin groove, a second slot is provided on one side of the rotating plate in a circumferential array, and the other end of the second pin is adapted to the cavity of the second slot.

[0012] Preferably, a second groove is provided on one side of the mounting plate, and a second pull rod is slidably disposed in the second groove, with one end of the second pull rod being fixedly connected to one end of the second pin.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This application sets up a limiting block, a shaft, and a circular plate, thereby enabling the quick disassembly of the rotating area of ​​the desk lamp by separating the two limiting blocks. The device is simple to operate and easy to assemble and disassemble, effectively improving the ease of disassembly and assembly of each structure of the desk lamp joint mechanism, as well as the convenience of its maintenance and replacement.

[0015] This application improves the ease of assembly and disassembly of the joint structure of the vertical section of the table lamp by setting a first bolt, a connecting shaft, and a mounting plate, thereby further enhancing the convenience of maintenance and replacement of each structure of the table lamp's joint mechanism.

[0016] This application, by setting a first pull rod and a second pull rod, makes it more convenient to fix and adjust the joints of the desk lamp, thereby effectively improving the convenience and practicality of the desk lamp's multi-axis adjustment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the multi-axial adjustable joint mechanism of this utility model;

[0018] Figure 2 This is a three-dimensional cross-sectional view of the multi-axial adjustable joint mechanism of this utility model.

[0019] Figure 3 This is a three-dimensional schematic diagram of the upper arm of a multi-axial adjustable joint mechanism according to this utility model.

[0020] Figure 4 This is a three-dimensional schematic diagram of the rotating component of a multi-axial adjustable joint mechanism according to this utility model;

[0021] Figure 5 This is a three-dimensional schematic diagram of the lower arm of a multi-axial adjustable joint mechanism according to this utility model.

[0022] The following are the labeling elements in the diagram: 1. Lower arm body; 2. Upper arm body; 3. Mounting groove; 4. Limiting block; 5. Shaft; 6. Circular plate; 7. Rotating component; 701. Turntable; 702. First bolt; 703. Mounting plate; 704. First hexagonal block; 705. Cylindrical rod; 706. Second hexagonal block; 707. First hexagonal slot; 708. Cylindrical slot; 709. Second hexagonal slot; 8. Rope; 9. Second bolt; 10. First pin; 11. First slot; 12. Second pin; 13. Second slot; 14. First pull rod; 15. Second pull rod; 16. Rotating plate. 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] Example: Figure 1 - Figure 5As shown, this utility model provides a technical solution for a multi-axial adjustable joint mechanism, including a lower arm body 1, an upper arm body 2 at the top of the lower arm body 1, a through mounting groove 3 on one side of the lower arm body 1, two mirror-symmetrically arranged limiting blocks 4 slidably arranged in the mounting groove 3, a fine groove and a coarse groove that are interconnected between the two limiting blocks 4, a shaft 5 adapted in the fine groove, a circular plate 6 fixedly arranged at one end of the shaft 5, the circular plate 6 being adapted to the cavity of the coarse groove, a rotating component 7 fixedly arranged at the other end of the shaft 5, the rotating component 7 being rotatably connected to one end of the upper arm body 2, and a limiting component that is fixed and limited between the two limiting blocks 4;

[0025] Specifically, a through-hole circular opening is provided on the top wall inside the mounting groove 3. The inner diameter of the circular opening matches the outer diameter of the circular plate 6, which is larger than the outer diameter of the shaft 5. When the shaft 5 is located in the narrow groove cavity, the circular plate 6 is located in the coarse groove cavity, and the two limiting blocks 4 are fixed together. At this time, the shaft 5 can rotate in the narrow groove cavity, and the circular plate 6 can rotate in the coarse groove cavity. A circular ring is fixedly sleeved on the top of the shaft 5. The circular ring is located in the circular opening cavity and can rotate within the circular opening cavity. Wire blocks are fixedly provided on both sides of the limiting blocks 4. Wire grooves are provided on both inner walls of the mounting groove 3, and the wire blocks slide within the wire groove cavities. A center block is fixedly provided on the bottom wall inside the mounting groove 3 at the center of the mounting groove 3. A center groove is provided between the two limiting blocks 4 at the corresponding position relative to the center block. The center block is located within the center groove cavity. The center block can improve the stability of the two limiting blocks 4 being fixed together.

[0026] The table lamp joint includes a lower arm 1, an upper arm 2, a rotating component 7, and a rotating plate 16; the table lamp includes a first arm, a second arm, a third arm, a fourth arm, and table lamp joints disposed between each arm; the lower arm 1 and the upper arm 2 can be any pair or more of the first arm, second arm, third arm, or fourth arm; this application focuses on describing the table lamp joint, and the first arm, second arm, third arm, fourth arm, and lamp head of the table lamp are all existing technology equipment and structures, and their specific forms, usage methods, and connection methods are not described in detail in this application.

[0027] like Figure 2 and Figure 4As shown, the rotating component 7 includes a turntable 701 fixed to one end of the shaft 5. Two mounting plates 703 are fixedly installed on the top of the turntable 701. A connecting shaft is provided between the two mounting plates 703. The connecting shaft includes a first hexagonal block 704, a cylindrical rod 705, and a second hexagonal block 706 that are fixedly connected to each other in sequence. A first hexagonal groove 707 adapted to the first hexagonal block 704 is opened on one side of the left mounting plate 703. A cylindrical groove 708 and a second hexagonal groove 709 that are connected through are opened on one side of the right mounting plate 703. The cylindrical rod 705 is adapted to the cavity of the cylindrical groove 708. The second hexagonal block 706 is adapted to the second hexagonal groove 709. A threaded groove is opened at the leftmost end of the connecting shaft. A first bolt 702 is threaded in the threaded groove. A rotating plate 16 is rotatably sleeved on the outside of the cylindrical rod 705. The rotating plate 16 is fixed to one end of the upper arm body 2.

[0028] Specifically, the maximum outer diameter of the first hexagonal block 704 is smaller than the outer diameter of the cylindrical rod 705, the outer diameter of the cylindrical rod 705 is smaller than the maximum outer diameter of the second hexagonal block 706, a through-hole is provided on one side of the rotating plate 16, the cylindrical rod 705 rotates in the cavity of the hole, and a nut is fixedly provided at one end of the first bolt 702, the maximum outer diameter of the nut is larger than the maximum outer diameter of the first hexagonal slot 707.

[0029] like Figure 5 As shown, the limiting assembly includes a second bolt 9, and threaded holes are provided on one side of both limiting blocks 4. The second bolt 9 is threaded into the cavity between the two threaded holes.

[0030] like Figure 2 and Figure 4 As shown, a first pin groove is provided at the off-center of the bottom of the turntable 701, a first pin 10 is slidably disposed in the first pin groove, a first spring is provided between the top of the first pin 10 and the top wall inside the first pin groove, and a first slot 11 distributed in a circular array is provided at the top of the lower arm body 1, and the bottom end of the first pin 10 is adapted to the cavity of the first slot 11.

[0031] Specifically, the first pin groove and each first slot 11 are on the same circumferential trajectory of the turntable 701.

[0032] like Figure 2 and Figure 4 As shown, a first groove is provided on one side of the mounting plate 703. A wire groove is formed between the bottom of the first groove and the top of the first pin groove. A first pull rod 14 is slidably arranged in the first groove. A wire rope 8 is fixedly arranged between one end of the first pull rod 14 and the top of the first pin 10. The wire rope 8 slides in the cavity of the wire groove.

[0033] like Figure 2 and Figure 4As shown, a second pin groove is provided at the off-center position on one side of the mounting plate 703, and a second pin 12 is slidably disposed in the second pin groove. A second spring is provided between one end of the second pin 12 and the inner wall of the first pin groove. A second slot 13 distributed in a circular array is provided on one side of the rotating plate 16, and the other end of the second pin 12 is adapted to the cavity of the second slot 13.

[0034] Specifically, the second pin groove and each second slot 13 are on the same circumferential trajectory of the rotating plate 16.

[0035] like Figure 2 and Figure 4 As shown, a second pull groove is provided on one side of the mounting plate 703, and a second pull rod 15 is slidably disposed in the second pull groove. One end of the second pull rod 15 is fixedly connected to one end of the second pin 12.

[0036] Working principle: The desk lamp utilizes the shaft 5 on the turntable 701 and the connecting shaft on the rotating plate 16 to allow for multi-axial adjustment of the lamp head. When adjusting the angle of the horizontal section, the first pull rod 14 needs to be pulled. The first pull rod 14 then uses the rope 8 to pull the first pin 10 to slide completely into the first pin groove cavity, and compresses the first spring. At this time, the pin head of the first pin 10 disengages from the corresponding first slot 11 cavity, thereby allowing the upper arm 2 and the lamp head to rotate horizontally. When fixing the upper arm 2 and the lamp head, simply release the first pull rod 14, allowing the first pin 10 to partially pop out due to the elastic force of the first spring and simultaneously insert into the corresponding first slot 11 cavity.

[0037] When the angle of the vertical section needs to be adjusted, the second pull rod 15 needs to be pulled. The second pull rod 15 will pull the second pin 12 to slide completely into the second pin groove cavity and compress the second spring. At this time, the pin head of the second pin 12 will disengage from the corresponding second slot 13 cavity, thereby allowing the upper arm body 2 and the lamp head to rotate vertically. When fixing the upper arm body 2 and the lamp head, simply release the second pull rod 15, so that the second pin 12 will be partially ejected by the elastic force of the second spring and simultaneously inserted into the corresponding second slot 13 cavity.

[0038] When any joint structure is damaged and needs to be repaired, replaced, or disassembled, simply loosen the second bolt 9 to release the restriction of the two limit blocks 4. Then remove the limit blocks 4 and pull out the shaft 5 and the circular plate 6 located in the mounting groove 3. Loosen the first bolt 702 to disassemble the rotating plate 16 and the connecting shaft.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-axial adjustable joint mechanism, comprising a lower arm body (1), characterized in that: The lower arm body (1) is provided with an upper arm body (2) at its top end. A through mounting groove (3) is provided on one side of the lower arm body (1). Two mirror-symmetrically arranged limiting blocks (4) are slidably arranged in the mounting groove (3). A fine groove and a coarse groove are provided between the two limiting blocks (4). A shaft (5) is adapted in the fine groove. A circular plate (6) is fixedly provided at one end of the shaft (5). The circular plate (6) is adapted to the cavity of the coarse groove. A rotating part (7) is fixedly provided at the other end of the shaft (5). The rotating part (7) is rotatably connected to one end of the upper arm body (2). A limiting component that is fixed and limited between the two limiting blocks (4) is provided.

2. The multi-axial adjustable joint mechanism according to claim 1, characterized in that: The rotating component (7) includes a turntable (701) fixed to one end of the shaft (5). Two mounting plates (703) are fixedly installed on the top of the turntable (701). A connecting shaft is provided between the two mounting plates (703). The connecting shaft includes a first hexagonal block (704), a cylindrical rod (705), and a second hexagonal block (706) that are fixedly connected to each other in sequence. A first hexagonal groove (707) adapted to the first hexagonal block (704) is opened on one side of the left mounting plate (703). The right side... The mounting plate (703) has a through-connected cylindrical groove (708) and a second hexagonal groove (709) on one side. The cylindrical rod (705) is adapted to the cavity of the cylindrical groove (708). The second hexagonal block (706) is adapted to the second hexagonal groove (709). The leftmost end of the connecting shaft has a threaded groove. A first bolt (702) is threaded in the threaded groove. A rotating plate (16) is rotatably sleeved on the outside of the cylindrical rod (705). The rotating plate (16) is fixed to one end of the upper arm body (2).

3. The multi-axial adjustable joint mechanism according to claim 1, characterized in that: The limiting assembly includes a second bolt (9), and threaded holes are provided on one side of both limiting blocks (4). The second bolt (9) is threaded in the cavity between the two threaded holes.

4. The multi-axial adjustable joint mechanism according to claim 2, characterized in that: The turntable (701) has a first pin groove at the off-center of the bottom, and a first pin (10) is slidably disposed in the first pin groove. A first spring is disposed between the top of the first pin (10) and the top wall inside the first pin groove. The lower arm body (1) has a first slot (11) distributed in a circular array at the top. The bottom end of the first pin (10) is adapted to the cavity of the first slot (11).

5. A multi-axial adjustable joint mechanism according to claim 4, characterized in that: The mounting plate (703) has a first groove on one side. A wire groove is formed between the bottom of the first groove and the top of the first pin groove. A first pull rod (14) is slidably arranged in the first groove. A wire rope (8) is fixedly arranged between one end of the first pull rod (14) and the top of the first pin (10). The wire rope (8) slides in the cavity of the wire groove.

6. A multi-axial adjustable joint mechanism according to claim 5, characterized in that: A second pin groove is provided on one side of the mounting plate (703) at the off-center position. A second pin (12) is slidably disposed in the second pin groove. A second spring is provided between one end of the second pin (12) and the inner wall of the first pin groove. A second slot (13) is provided on one side of the rotating plate (16) in a circumferential array. The other end of the second pin (12) is adapted to the cavity of the second slot (13).

7. A multi-axial adjustable joint mechanism according to claim 6, characterized in that: The mounting plate (703) has a second groove on one side, and a second pull rod (15) is slidably arranged in the second groove. One end of the second pull rod (15) is fixedly connected to one end of the second pin (12).

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