Adjustable table leg locking mechanism

Abstract

The invention relates to the technical field of furniture manufacturing, and discloses an adjustable table leg locking mechanism which comprises a table frame, table legs and a connecting piece, the table frame is provided with a clamping groove, a positioning end block and a limiting end block, and the connecting piece comprises a clamping part and a driving mechanism for driving the clamping part to move. The clamping part comprises a clamping end capable of being inserted into the clamping groove to achieve clamping, and one end of the connecting piece is matched with the positioning end block to form a rotating fulcrum. A traditional screw fastening mode is abandoned, and rapid clamping and separation of the clamping end and the clamping groove can be achieved by operating the rotating shaft and utilizing precise transmission of the gear and the meshing end; according to the table, the requirements of a user for quickly building and storing the table are met, the operation convenience is remarkably improved, the user can easily complete mounting and dismounting of the table, meanwhile, the table legs and the table frame can be quickly separated, the transportation size is greatly reduced, the transportation cost is reduced, and great convenience is brought to furniture transportation and storage.

Description

Technical Field

[0001] The invention relates to the technical field of furniture manufacturing, and in particular to an adjustable table leg locking mechanism. Background Art

[0002] In the field of modern furniture design and manufacturing, as a common piece of furniture, the convenience and practicality of the table structure have always been the focus of research and development and improvement. In particular, the connection between the table legs and the tabletop has an important impact on the assembly efficiency, transportation convenience and stability of the table.

[0003] Traditional table assembly mostly relies on screws to fix the table legs to the tabletop. Although this connection method can ensure a certain degree of stability, it exposes many problems during actual use. From the assembly point of view, users need to use professional tools such as screwdrivers to tighten the screws in a specific order and torque. The operation process is complicated and time-consuming, which is extremely unfriendly to users with weak hands-on ability. In terms of transportation, since it cannot be disassembled quickly, the volume of the table is difficult to compress, which not only occupies a large amount of transportation space and increases logistics costs, but also easily causes parts to loosen or be damaged due to collisions during transportation. After long-term and frequent use, the screw connection parts may become loose due to thread wear, affecting the stability of the table and even posing a safety hazard. It also shortens the service life of the table. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an adjustable table leg locking mechanism, which can achieve fast and convenient connection and separation between the table legs and the table frame, improve assembly efficiency, reduce transportation costs, and ensure the stability and reliability of the connection.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An adjustable table leg locking mechanism comprises a table frame, a table leg and a connecting piece, wherein the table frame is provided with a clamping groove, a positioning end block and a limiting end block, the connecting piece comprises a clamping part and a driving mechanism for driving the clamping part to move, the clamping part comprises a clamping end that can be inserted into the clamping groove to achieve clamping, one end of the connecting piece cooperates with the positioning end block to form a rotating fulcrum, the limiting end block limits the rotatably installed connecting piece to ensure the accuracy of the clamping position, the table leg is clamped and connected to the table frame through the connecting piece, and the driving mechanism is operated to move the clamping part to change the connection state between the table leg and the table frame.

[0006] Preferably, the clamping part is a clamping plate, the clamping end is arranged on the clamping plate, and the clamping plate is connected to the driving mechanism.

[0007] Preferably, the snap-on end is composed of end body one and end body two, a recessed groove is formed between the two, the end body one has an inverted slope and is arranged above the end body two, and the snap-on groove on the table frame is opened corresponding to the end body one and the end body two.

[0008] Preferably, the driving mechanism includes a rotating shaft, on which is provided a control member for driving the clamping plate to move, the rotating shaft is connected to the clamping plate via the control member, the rotating shaft is rotatably arranged in the connecting member, a torsion spring for resetting is sleeved on the rotating shaft, and a placement groove for one end of the torsion spring to be clamped in is provided on the rotating shaft, when it is necessary to change the connection state between the table leg and the table frame, the operating shaft is rotated, and the power generated by the rotation of the rotating shaft is transmitted to the clamping plate through the control member, driving the clamping plate to move in a predetermined direction, thereby realizing precise engagement or smooth separation of the clamping end and the clamping groove.

[0009] Preferably, two said clip-on plates are symmetrically provided, and both said clip-on plates are meshed with the gears through meshing ends, and the clip-on ends of the two clip-on plates are respectively located on the upper and lower sides of the gears. By having the clip-on ends located on the upper and lower sides of the gears, the gears can synchronously drive the two meshed clip-on plates to move synchronously in opposite directions when they rotate.

[0010] Preferably, the control member includes a gear and an engaging end, the gear is sleeved on the rotating shaft, the engaging end is arranged on the clamping plate and is meshed with the gear, and the gear can convert the rotational motion into linear movement of the clamping plate by meshing with the meshing end, so that the clamping plate can be accurately clamped into or out of the clamping groove.

[0011] Preferably, the connecting member also includes a snap-in box, a mounting block and a positioning plate, the positioning plate is located in the snap-in box and snap-connected thereto, the mounting block is arranged between the snap-in box and the positioning plate and is fixed in the snap-in box through the positioning plate, and the mounting block can be fixed in the snap-in box through the positioning plate, so that the mounting block can provide stable support for the rotating shaft and the snap-in plate.

[0012] Preferably, the rotating shaft is rotatably arranged on the mounting block, one end of the rotating shaft has a mounting groove and passes through the snap-in box to be exposed to the outside, the mounting block is provided with a movable groove on the side close to the snap-in plate, the snap-in plate is movably arranged in the movable groove, the snap-in plate is located between the movable groove and the positioning plate, and the movable groove plays a guiding role to ensure that the snap-in plate will not shift during the movement.

[0013] Preferably, the snap-in box is provided with a positioning slot and a connecting slot, the positioning slot cooperates with the positioning end block to position the fulcrum for the rotation of the connecting piece, and the connecting slot cooperates with the limiting end block to limit the position. During installation, the connecting piece or the table frame is rotated with the cooperation of the positioning slot and the positioning end block as the fulcrum, so that the snap-in end is inserted into the snap-in slot, wherein the limiting end block and the connecting slot determine the relative position to ensure the accuracy of the snap-in position.

[0014] Preferably, the snap-in box is also provided with a through hole for the snap-in end to pass through, and the snap-in end passes through the through hole and is adapted to snap-in with the snap-in slot. The through hole ensures that the snap-in end can be smoothly snap-in with the snap-in slot on the table frame. The through hole not only provides a movement path for it, but also plays a guiding and positioning role, ensuring that the snap-in end can accurately complete the snap-in or separation operation with the snap-in slot.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention abandons the traditional screw fastening method. By operating the rotating shaft and utilizing the precise transmission of the gear and the meshing end, the fast engagement and separation of the snap-in end and the snap-in groove can be achieved, thereby meeting the needs of users for quickly building and storing tables, significantly improving the operational convenience, and allowing users to easily complete the installation and disassembly of the table. At the same time, the table legs and the table frame can be quickly separated, greatly reducing the transportation volume, reducing transportation costs, and bringing great convenience to furniture transportation and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A view showing one of the connecting parts of the present invention being separated from the table frame; Figure 3 For the present invention Figure 2 Enlarged view at A in the middle; Figure 4 A structural view of a connector according to the present invention; Figure 5 An exploded view of the connector structure of the present invention; Figure 6 It is a structural view of the driving mechanism of the present invention; Figure 7 It is a structural view of the clamping parts of the present invention; Figure 8 It is a view of the placement slot position of the present invention.

[0018] Explanation of the figure numbers: 1. Table frame; 11. Positioning end block; 12. Limiting end block; 13. Snap-in slot; 2. Table leg; 3. Connector; 31. Snap-in box; 311. Cover plate; 312. Box body; 313. Perforation; 32. Positioning slot; 33. Connecting slot; 34. Positioning plate; 35. Mounting block; 351. Moving slot; 36. Rotating shaft; 361. Placement slot; 37. Torsion spring; 38. Gear; 39. Snap-in plate; 391. Snap-in end; 3911. End body one; 3912. End body two; 392. Engaging end. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below with reference to the accompanying drawings.

[0020] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be used for other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0021] Those skilled in the art should understand that, in the disclosure of the present invention, the directions or positions indicated by the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, which are only simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0022] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity. Example

[0023] See also Figure 1-8 , an adjustable table leg locking mechanism, including a table frame 1, a table leg 2 and a connecting piece 3, the table frame 1 is provided with a clamping groove 13, a positioning end block 11 and a limiting end block 12, the connecting piece 3 includes a clamping part and a driving mechanism for driving the clamping part to move, the clamping part includes a clamping end 391 that can be inserted into the clamping groove 13 to achieve clamping, one end of the connecting piece 3 cooperates with the positioning end block 11 to form a rotation fulcrum, the limiting end block 12 limits the rotatably installed connecting piece 3 to ensure that the clamping position is accurate, the table leg 2 is clamped and connected to the table frame 1 through the connecting piece 3, and the driving mechanism is operated to move the clamping part to change the connection state of the table leg 2 and the table frame 1.

[0024] The clamping part is a clamping plate 39, and the clamping end 391 is arranged on the clamping plate 39. The clamping plate 39 is connected to the driving mechanism. The clamping end 391 is composed of an end body 1 3911 and an end body 2 3912, and a recessed groove is formed between the two. The end body 1 3911 has an inverted slope and is arranged above the end body 2 3912. The clamping groove 13 on the table frame 1 is opened corresponding to the end body 1 3911 and the end body 2 3912. During installation, the inverted slope of the end body 1 3911 guides the clamping end 391 to quickly align with the clamping groove 13, thereby reducing the difficulty of assembly. The contact area between the end body 2 3912 and the clamping groove 13 is increased to improve the connection stability. The groove optimizes the structure, reduces the weight and avoids stress concentration. The cooperation of the three makes the clamping end 391 and the clamping groove 13 more adaptable, thereby ensuring the reliability of the clamping of the table leg 2 and the table frame 1.

[0025] The driving mechanism includes a rotating shaft 36, on which is provided a control member for driving the clamping plate 39 to move. The rotating shaft 36 is connected to the clamping plate 39 through the control member. The rotating shaft 36 is rotatably arranged in the connecting member 3. A torsion spring 37 for resetting is sleeved on the rotating shaft 36. The rotating shaft 36 is provided with a placement groove 361 for one end of the torsion spring 37 to be clamped. When it is necessary to change the connection state between the table leg 2 and the table frame 1, the rotating shaft 36 is operated to rotate. The power generated by the rotation of the rotating shaft 36 is transmitted to the clamping plate 39 through the control member, driving the clamping plate 39 to move in a predetermined direction, thereby realizing precise engagement or smooth separation of the clamping end 391 and the clamping groove 13. The torsion spring 37 can provide a restoring force for the rotating shaft 36, so that the clamping plate 39 can automatically reset each time after moving.

[0026] Two clamping plates 39 are symmetrically provided, and both clamping plates 39 are meshed with the gear 38 through the meshing end 392. The clamping ends 391 of the two clamping plates 39 are respectively located on the upper and lower sides of the gear 38. By positioning the clamping ends 391 on the upper and lower sides of the gear 38, the gear 38 can synchronously drive the two meshing clamping plates 39 to move synchronously in opposite directions when rotating.

[0027] The control component includes a gear 38 and an engaging end 392. The gear 38 is sleeved on the rotating shaft 36. The engaging end 392 is arranged on the clamping plate 39 and is meshed with the gear 38. The gear 38 can convert the rotational motion into the linear movement of the clamping plate 39 by meshing with the engaging end 392, so that the clamping plate 39 can be accurately clamped into or disengaged from the clamping groove 13.

[0028] The connecting member 3 also includes a snap-in box 31, a mounting block 35 and a positioning plate 34. The positioning plate 34 is located in the snap-in box 31 and snap-connected thereto. The mounting block 35 is disposed between the snap-in box 31 and the positioning plate 34 and is fixed in the snap-in box 31 through the positioning plate 34. The mounting block 35 can be fixed in the snap-in box 31 through the positioning plate 34, so that the mounting block 35 can provide stable support for the rotating shaft 36 and the snap-in plate 39. The snap-in box 31 is composed of a cover plate 311 and a box body 312. After the mounting block 35 is installed in the box body 312 through the positioning plate 34, the cover plate 311 is covered to finally form a complete snap-in box 31.

[0029] The rotating shaft 36 is rotatably arranged on the mounting block 35. One end of the rotating shaft 36 is provided with a mounting groove 361 and passes through the clamping box 31 to be exposed to the outside. A movable groove 351 is provided on the side of the mounting block 35 close to the clamping plate 39. The clamping plate 39 is movably arranged in the movable groove 351. The clamping plate 39 is located between the movable groove 351 and the positioning plate 34. The movable groove 351 plays a guiding role to ensure that the clamping plate 39 will not deviate during the movement.

[0030] A positioning slot 32 and a connecting slot 33 are provided on the snap-in box 31. The positioning slot 32 cooperates with the positioning end block 11 to position the fulcrum for the rotation of the connecting member 3, and the connecting slot 33 cooperates with the limiting end block 12 to limit. During installation, the connecting member 3 or the table frame 1 is rotated with the positioning slot 32 and the positioning end block 11 as the fulcrum, so that the snap-in end 391 is inserted into the snap-in slot 13, wherein the limiting end block 12 and the connecting slot 33 determine the relative position to ensure the accuracy of the snap-in position.

[0031] The snap-in box 31 is also provided with a through hole 313 for the snap-in end 391 to pass through. The snap-in end 391 passes through the through hole 313 and is adapted to be snap-fitted with the snap-in slot 13. The through hole 313 ensures that the snap-in end 391 can be smoothly snap-fitted with the snap-in slot 13 on the table frame 1. The through hole 313 not only provides a movement path for it, but also plays a guiding and positioning role, ensuring that the snap-in end 391 can accurately complete the snap-in or separation operation with the snap-in slot 13.

[0032] When performing the installation operation, first, the positioning end block 11 on the table frame 1 cooperates with the positioning card slot 32 on the card box 31, and with the cooperation between the positioning end block 11 and the positioning card slot 32 as the fulcrum, the connection box is rotated toward the table frame 1 or the table frame 1 is rotated toward the table leg 2, and the inverted slope on its card end 391 can push the card plate 39 inward to tighten the torsion spring 37, and after the card box 31 is rotated until the limit end block 12 cooperates with the connecting card slot 33, the card end 391 on the card plate 39 is aligned with the card slot 13, and the force released by the torsion spring 37 drives the rotating shaft 36 to rotate, and the rotating shaft 36 drives the positioning plate 34 engaged with the meshing connection to move through the gear 38, and the card end 391 of the positioning plate 34 moves to the card slot 13 to complete the card connection, thereby realizing the quick connection between the table leg 2 and the table frame 1; When disassembling the table leg 2, the rotating shaft 36 can be rotated through the installation groove, and the rotating shaft 36 drives the gear 38 to rotate. The gear 38 is driven by meshing with the meshing end 392 on the clamping plate 39, driving the two clamping plates 39 to move synchronously in opposite directions, so that the clamping end 391 is moved out of the clamping groove 13 on the table frame 1, and then the positioning end block 11 of the table frame 1 is used as the rotation fulcrum to rotate the table leg 2 and the connecting member 3 outward together, so that the limiting end block 12 is separated from the connecting clamping groove 33, so that the table leg 2 and the connecting member 3 can be removed from the table frame 1 to complete the quick disassembly.

[0033] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. An adjustable table leg locking mechanism, characterized in that: The table frame (1) comprises a table frame (1), table legs (2) and a connecting piece (3), wherein the table frame (1) is provided with a clamping groove (13), a positioning end block (11) and a limiting end block (12), wherein the connecting piece (3) comprises a clamping part and a driving mechanism for driving the clamping part to move, wherein the clamping part comprises a clamping end (391) which can be inserted into the clamping groove (13) to achieve clamping, wherein one end of the connecting piece (3) cooperates with the positioning end block (11) to form a rotation fulcrum, and the limiting end block (12) limits the rotatably installed connecting piece (3) to ensure that the clamping position is accurate; The table leg (2) is snap-connected to the table frame (1) via a connecting piece (3); the driving mechanism is operated to move the snap-connecting part to change the connection state between the table leg (2) and the table frame (1).

2. The adjustable table leg locking mechanism according to claim 1, characterized in that: The clamping part is a clamping plate (39), the clamping end (391) is arranged on the clamping plate (39), and the clamping plate (39) is connected to a driving mechanism.

3. The adjustable table leg locking mechanism according to claim 2, characterized in that: The snap-on end (391) is composed of an end body 1 (3911) and an end body 2 (3912), with a recessed groove formed between the two. The end body 1 (3911) has an inverted slope and is arranged above the end body 2 (3912). The snap-on groove (13) on the table frame (1) is correspondingly provided with the end body 1 (3911) and the end body 2 (3912).

4. The adjustable table leg locking mechanism according to claim 3, characterized in that: The driving mechanism comprises a rotating shaft (36), a control member for driving the clamping plate (39) to move is provided on the rotating shaft (36), the rotating shaft (36) is connected to the clamping plate (39) via the control member, the rotating shaft (36) is rotatably arranged in the connecting member (3), a torsion spring (37) for resetting is sleeved on the rotating shaft (36), and a placement groove (361) is provided on the rotating shaft (36) for one end of the torsion spring (37) to be clamped.

5. The adjustable table leg locking mechanism according to claim 4, characterized in that: Two of the clamping plates (39) are symmetrically provided, and the two clamping plates (39) are both meshedly connected to the gear (38) via meshing ends (392), and the clamping ends (391) of the two clamping plates (39) are respectively located on the upper and lower sides of the gear (38).

6. The adjustable table leg locking mechanism according to claim 5, characterized in that: The control component comprises a gear (38) and a meshing end (392); the gear (38) is sleeved on the rotating shaft (36); the meshing end (392) is disposed on the clamping plate (39) and meshedly connected with the gear (38).

7. The adjustable table leg locking mechanism according to claim 6, characterized in that: The connecting member (3) further comprises a clamping box (31), a mounting block (35) and a positioning plate (34); the positioning plate (34) is located in the clamping box (31) and is clamped thereto; the mounting block (35) is disposed between the clamping box (31) and the positioning plate (34) and is fixed in the clamping box (31) via the positioning plate (34).

8. The adjustable table leg locking mechanism according to claim 7, characterized in that: The rotating shaft (36) is rotatably mounted on the mounting block (35); one end of the rotating shaft (36) is provided with a mounting groove (361) and passes through the clamping box (31) to be exposed to the outside; a movable groove (351) is provided on one side of the mounting block (35) close to the clamping plate (39); the clamping plate (39) is movably mounted in the movable groove (351); and the clamping plate (39) is located between the movable groove (351) and the positioning plate (34).

9. The adjustable table leg locking mechanism according to claim 8, characterized in that: The snap-in box (31) is provided with a positioning slot (32) and a connecting slot (33); the positioning slot (32) cooperates with the positioning end block (11) to position a fulcrum for the rotation of the connecting member (3); and the connecting slot (33) cooperates with the limiting end block (12) to limit the position.

10. The adjustable table leg locking mechanism according to claim 9, characterized in that: The snap-in box (31) is also provided with a through hole (313) for the snap-in end (391) to pass through, and the snap-in end (391) passes through the through hole (313) to be snap-fitted with the snap-in slot (13).

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