Hidden universal wheel convenient to lock for lifting table

Abstract

The utility model relates to the technical field of universal wheels, in particular to a hidden universal wheel convenient to lock for a lifting table, which comprises a housing, a top block, a rotating wheel and a locking mechanism, a clamping groove is arranged at the top of the housing, the top block is arranged at the upper end of the housing, a buckle corresponding to the clamping groove is arranged at the bottom of the top block, and the rotating wheel is arranged in the clamping groove. A groove A is formed in the top, close to the center, of the top block; the locking mechanism is composed of a force application structure, a downward pressing active locking piece structure, a reset structure and a locked piece structure, and the force application structure comprises a contact wheel located on the inner side of the groove A; the crescent shifting block is fixed at the top of the contact wheel; the rotating shaft B is arranged in the center of the contact wheel; the groove C is positioned at the bottom of the contact wheel; the downward-pressing active locking piece structure comprises a groove B, a groove B, a groove C and a groove D, wherein the groove B is formed in the inner top of the housing; a hollow block; and the locking structure is provided with a guide structure, so that the locking stability is good.

Description

Technical Field

[0001] This utility model relates to the field of caster technology, specifically to a concealed caster for a height-adjustable table that is easy to lock. Background Technology

[0002] A height-adjustable desk caster is a flexible movement accessory designed specifically for height-adjustable desks. It is usually made of high-strength nylon or rubber and has a built-in 360° rotating bearing, which supports smooth movement in multiple directions and is quiet and scratch-resistant.

[0003] Traditional casters lack a guiding mechanism in their locking structure, resulting in poor stability when locked. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a concealed universal wheel for a height-adjustable table that is easy to lock. The locking structure has a guiding structure, which provides good stability when locked.

[0005] The technical solution adopted by this utility model to solve its technical problem is a hidden universal wheel for a height-adjustable table that is easy to lock, including a cover, a top block, a wheel and a locking mechanism. The top of the cover has a slot, the top of the cover is provided with a top block, the bottom of the top block is provided with a buckle corresponding to the slot, and the top of the top block has a groove A near the center.

[0006] The locking mechanism comprises a force-applying structure, a pressing active locking component structure, a reset structure, and a locked component structure. The force-applying structure includes:

[0007] The contact wheel is located inside the groove A;

[0008] A crescent-shaped actuating block is fixed to the top of the contact wheel;

[0009] Rotating shaft B is located at the center of the contact wheel;

[0010] Groove C is located at the bottom of the contact wheel;

[0011] The downward active locking component structure includes:

[0012] Recess B is located at the top of the inner part of the cover;

[0013] The hollow block is located inside the groove B;

[0014] A force-bearing column is provided at the top of the hollow block. When the contact wheel rotates under force, the force-bearing column is pressed down by the pressure of the edge of the groove C.

[0015] The convex disk is located on the outer side of the bottom end of the hollow block;

[0016] Displacement components are connected to both ends of the convex disk;

[0017] Locking protrusions are located at both ends of the bottom of the displacement member;

[0018] The reset structure includes:

[0019] The fixing element is located at the lower end of the displacement element;

[0020] Groove D is provided at the bottom of the fixing member;

[0021] A reset spring is installed at the top of the hollow block, and its bottom contacts the bottom of the groove D.

[0022] A through groove is provided at both ends of the top of the fixing member and is located at the lower end of the locking protrusion;

[0023] The locking component structure includes:

[0024] The rotating wheel is located at the lower end of the fixing member;

[0025] A cylindrical block is positioned at the center of the rotating wheel;

[0026] The locking groove is provided in multiple sets, and all sets of the locking groove are opened on the outside of the cylindrical block, which are used to cooperate with the pressing locking protrusion to complete the locking action.

[0027] By adopting the above technical solution, the operator applies force to the crescent-shaped actuating block, causing the contact wheel and rotating shaft B to rotate, thereby causing the groove C to deflect. When the groove C deflects, it applies downward pressure to the force-bearing column, thereby causing the locking protrusion to press down and pass through the through groove to achieve the locking action of the rotating wheel.

[0028] Specifically, an inner sleeve is provided on the inner side of the cover near the top, and a support ring is provided between the top edge of the inner sleeve and the top of the cover through a reserved groove.

[0029] By adopting the above technical solution, the space between the cover and the inner kit can be supported by the support ring, and the cover and the inner kit can rotate relative to each other.

[0030] Specifically, a vertical block is provided near the center of the top of the cover, and a limiting groove is provided on the top of the vertical block.

[0031] Specifically, both ends of the contact wheel are provided with a rotating shaft B, the inner wall of the groove A is provided with a mounting groove A, the rotating shaft B is located in the mounting groove A, and the rotating shaft B is located at the upper end of the limiting groove.

[0032] Specifically, a flange is provided on the outer periphery of the bottom end of the cover, and a reinforcing rib is provided at the connection between the top of the flange and the outer wall of the cover.

[0033] Specifically, positioning posts are provided on both sides of the fixing member near the center, and a surrounding plate is provided on the inner wall of the positioning post near both sides. An installation groove C is provided on the inner side of the surrounding plate near the center, and the positioning posts are all located in the corresponding installation groove C.

[0034] By adopting the above technical solution, the positioning column and the mounting groove C are used to facilitate the limiting and fixing of the fastener.

[0035] Specifically, each of the inner walls of the enclosure is provided with a mounting groove B near the bottom, and the rotating wheel is provided with a rotating shaft A located in the mounting groove B.

[0036] Specifically, the support ring is made of nylon material.

[0037] By adopting the above technical solution, and using a support ring made of nylon material, the relative rotation between the cover and the inner component can be made smoother due to the self-lubricating effect of nylon material.

[0038] The beneficial effects of this utility model are:

[0039] (1) The concealed universal wheel for lifting table that is easy to lock, as described in this utility model, uses a locking protrusion to pass through the through groove and insert into the locking groove opened on the outside of the cylindrical block, thereby realizing the locking operation of the wheel. Through the limiting and guiding effect of the through groove on the locking protrusion and the limiting and guiding effect of the groove B, the stability of the locking structure during operation can be effectively improved. The locking structure of this universal wheel has a guiding structure and has good stability when locked. Attached Figure Description

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0041] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0042] Figure 2 This is a schematic diagram of the cross-section structure of this utility model;

[0043] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0044] Figure 4 This is a schematic diagram of the base plate and buckle structure of this utility model;

[0045] Figure 5 This is a schematic diagram of the inner kit, enclosure, mounting groove B, and mounting groove C of this utility model.

[0046] In the diagram: 1. Cover; 2. Top block; 3. Groove A; 4. Crescent-shaped actuating block; 5. Contact wheel; 6. Flange; 7. Reinforcing rib; 8. Rotating wheel; 9. Columnar block; 10. Locking groove; 11. Rotating shaft A; 12. Groove B; 13. Hollow block; 14. Force-bearing column; 15. Groove C; 16. Rotating shaft B; 17. Displacement component; 18. Protrusion; 19. Groove D; 20. Return spring; 21. Fixing component; 22. Through groove; 23. Locking protrusion; 24. Support ring; 25. Slot; 26. Vertical block; 27. Limiting groove; 28. Mounting groove A; 29. ​​Inner part; 30. Positioning column; 31. Buckle; 32. Enclosure; 33. Mounting groove B; 34. Mounting groove C. Detailed Implementation

[0047] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0048] To ensure the locking mechanism of this caster wheel has a guiding structure and improves stability when locked, such as... Figure 1-5 As shown, the present invention provides a concealed universal wheel for a height-adjustable table that is easy to lock, comprising a cover 1, a top block 2, a swivel wheel 8 and a locking mechanism. The top of the cover 1 is provided with a slot 25, the top block 2 is provided at the upper end of the cover 1, the bottom of the top block 2 is provided with a buckle 31 corresponding to the slot 25, and the top of the top block 2 is provided with a groove A3 near the center.

[0049] The locking mechanism comprises a force-applying structure, a pressing active locking component structure, a reset structure, and a locked component structure. The force-applying structure includes:

[0050] Contact wheel 5 is located inside the groove A3;

[0051] The crescent-shaped actuating block 4 is fixed to the top of the contact wheel 5;

[0052] The rotating shaft B16 is located at the center of the contact wheel 5;

[0053] The groove C15 is located at the bottom of the contact wheel 5;

[0054] The downward active locking component structure includes:

[0055] Recess B12 is provided at the top inside the cover 1;

[0056] Hollow block 13 is located inside the groove B12;

[0057] The force-bearing column 14 is located on the top of the hollow block 13. When the contact wheel 5 is rotated under force, the force-bearing column 14 is pressed down by the pressure of the edge of the groove C15.

[0058] The convex disk 18 is located on the outer side of the bottom end of the hollow block 13;

[0059] Displacement element 17 is connected to both ends of the convex disk 18;

[0060] Locking protrusions 23 are located at both ends of the bottom of the displacement member 17;

[0061] The reset structure includes:

[0062] Fixing member 21 is located at the lower end of displacement member 17;

[0063] Groove D19 is provided at the bottom of the fixing member 21;

[0064] The reset spring 20 is installed at the top inside the hollow block 13, and its bottom contacts the bottom inside the groove D19;

[0065] The through groove 22 is provided at both ends of the top of the fixing member 21 and is located at the lower end of the locking protrusion 23;

[0066] The locking component structure includes:

[0067] Rotary wheel 8 is located at the lower end of the fixing member 21;

[0068] A cylindrical block 9 is disposed at the center of the rotating wheel 8;

[0069] The locking groove 10 is provided in multiple sets. All sets of the locking groove 10 are opened on the outside of the cylindrical block 9 and are used to cooperate with the pressing locking protrusion 23 to complete the locking action.

[0070] When in use, the operator applies force to the crescent-shaped actuating block 4, which drives the contact wheel 5 and the rotating shaft B16 to rotate, thereby causing the groove C15 to deflect. When the groove C15 deflects, it applies downward pressure to the force-bearing column 14, thereby causing the locking protrusion 23 to press down and pass through the through groove 22 to achieve the locking action of the rotating wheel 8.

[0071] For example, such as Figure 2-3 As shown, the present invention also includes an inner sleeve 29 provided on the inner side of the cover 1 near the top, and a support ring 24 provided between the top edge of the inner sleeve 29 and the top of the inner side of the cover 1 through a reserved groove.

[0072] In use, the support ring 24 can support the space between the cover 1 and the inner component 29, and allow relative rotation between the cover 1 and the inner component 29.

[0073] For example, such as Figure 3 As shown, the present invention also includes a vertical block 26 provided at the top of the cover 1 near the center, and a limiting groove 27 is provided at the top of the vertical block 26.

[0074] When in use, the limiting groove 27 at the top of the vertical block 26 facilitates the support of the bottom of the rotating shaft B16.

[0075] For example, such as Figure 3 As shown, the present invention also includes a rotating shaft B16 at both ends of the contact wheel 5, an installation groove A28 is provided on the inner wall of the groove A3, the rotating shaft B16 is located in the installation groove A28, and the rotating shaft B16 is located at the upper end of the limiting groove 27.

[0076] During use, the rotating shaft B16 can be easily limited by the mounting slot A28 and the limiting slot 27.

[0077] For example, such as Figure 1 and 3 As shown, the present invention also includes a flange 6 provided on the outer periphery of the bottom end of the cover 1, and a reinforcing rib 7 provided at the connection between the top of the flange 6 and the outer wall of the cover 1.

[0078] When in use, the strength of the cover 1 can be effectively improved by the reinforcing rib 7.

[0079] For example, such as Figure 3 and 5 As shown, the present invention also includes positioning posts 30 on both sides of the fixing member 21 near the center, and surrounding plates 32 on the inner walls of the positioning posts 30 near both sides. An installation groove C34 is provided on the inner side of the surrounding plates 32 near the center, and the positioning posts 30 are all located in the corresponding installation grooves C34.

[0080] In use, the positioning post 30 cooperates with the mounting groove C34 to facilitate the limiting and fixing of the fixing part 21.

[0081] For example, such as Figure 3 and 5 As shown, the present invention also includes mounting grooves B33 on the inner wall of the enclosure 32 near the bottom, and a rotating shaft A11 is provided in the rotating wheel 8 located in the mounting grooves B33.

[0082] During use, the groove A3 facilitates the positioning and installation of the rotating shaft A11.

[0083] For example, such as Figure 2 and 3 As shown, the present invention also includes a support ring 24 made of nylon material.

[0084] When in use, the support ring 24 is made of nylon material. Since nylon material has a self-lubricating effect, it can make the relative rotation between the cover 1 and the inner part 29 smoother.

[0085] In use, the universal caster is installed at the bottom of the lifting table. A slot corresponding to the top block 2 is provided at the bottom of the lifting table. The top block 2 is glued and fixed into the slot to complete the installation. External force can be applied to the crescent-shaped actuating block 4 from the inner bottom of the table.

[0086] When a person applies force to the crescent-shaped actuating block 4, it causes the contact wheel 5 and the rotating shaft B16 to rotate, thereby causing the groove C15 to deflect. When the groove C15 deflects, it applies downward pressure to the force-bearing column 14, which in turn causes the hollow block 13, the cam 18, the displacement component 17, and the locking protrusion 23 to press down. The locking protrusion 23 passes through the through groove 22 and inserts into the locking groove 10 on the outer side of the cylindrical block 9, thus achieving the locking operation of the rotating wheel 8. The limiting and guiding effect of the through groove 22 on the locking protrusion 23, and the limiting and guiding effect of the groove B12, effectively improves the stability of the locking structure during operation. This universal wheel's locking structure has a guiding structure, resulting in good stability during locking.

[0087] When locking is not required, the operator moves the crescent-shaped toggle block 4 to the correct position. At this time, the groove C15 is directly above the force-bearing column 14. As the hollow block 13 is pressed down, it causes the return spring 20 to compress. When the crescent-shaped toggle block 4 and the groove C15 are reset, the return spring 20 rebounds, causing the hollow block 13 and the force-bearing column 14 to move upward. This causes the force-bearing column 14 to be inserted into the groove C15, and causes the locking protrusion 23 to be lifted from the locking groove 10, thereby releasing the lock on the rotating wheel 8.

[0088] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A concealed universal caster wheel for a height-adjustable desk that is easy to lock, characterized in that, It includes a cover (1), a top block (2), a rotating wheel (8) and a locking mechanism. The top of the cover (1) is provided with a slot (25), the top of the cover (1) is provided with a top block (2), the bottom of the top block (2) is provided with a buckle (31) corresponding to the slot (25), and the top of the top block (2) is provided with a groove A (3) near the center. The locking mechanism comprises a force-applying structure, a pressing active locking component structure, a reset structure, and a locked component structure. The force-applying structure includes: The contact wheel (5) is located inside the groove A (3); The crescent-shaped actuating block (4) is fixed to the top of the contact wheel (5); Rotating shaft B (16) is located at the center of the contact wheel (5); Groove C (15) is located at the bottom of the contact wheel (5); The downward active locking component structure includes: The groove B (12) is located at the top inside the cover (1); Hollow block (13) is located inside the groove B (12); The force-bearing column (14) is set on the top of the hollow block (13). When the contact wheel (5) is rotated under force, the force-bearing column (14) is pressed down by the pressure of the edge of the groove C (15). A convex disc (18) is located on the outer side of the bottom end of the hollow block (13); Displacement element (17) is connected to both ends of the cam (18); Locking protrusions (23) are located at both ends of the bottom of the displacement member (17); The reset structure includes: The fixing member (21) is located at the lower end of the displacement member (17); Groove D (19) is provided at the bottom of the fastener (21); A reset spring (20) is installed at the top inside the hollow block (13), and its bottom contacts the bottom inside the groove D (19); The through groove (22) is provided at both ends of the top of the fixing member (21) and is located at the lower end of the locking protrusion (23); The locking component structure includes: The rotating wheel (8) is located at the lower end of the fixing member (21); A cylindrical block (9) is disposed at the center of the rotating wheel (8); The locking groove (10) is provided in multiple sets. All sets of the locking groove (10) are opened on the outside of the cylindrical block (9) for cooperating with the pressing locking protrusion (23) to complete the locking action.

2. The hidden universal wheel for height adjustable table according to claim 1, wherein, An inner sleeve (29) is provided on the inner side of the cover (1) near the top. A support ring (24) is provided between the top edge of the inner sleeve (29) and the top of the inner part of the cover (1) through a reserved groove.

3. The concealed caster wheel for a height-adjustable table as described in claim 1, characterized in that, A vertical block (26) is provided at the top of the cover (1) near the center, and a limiting groove (27) is provided at the top of the vertical block (26).

4. The concealed caster wheel for a height-adjustable table as described in claim 1, characterized in that, The contact wheel (5) is provided with a rotating shaft B (16) at both ends. The inner wall of the groove A (3) is provided with an installation groove A (28). The rotating shaft B (16) is located in the installation groove A (28) and the rotating shaft B (16) is located at the upper end of the limiting groove (27).

5. A concealed universal caster for a height-adjustable table with easy locking, as described in claim 1, characterized in that, A flange (6) is provided on the outer periphery of the bottom end of the cover (1), and a reinforcing rib (7) is provided at the connection between the top of the flange (6) and the outer wall of the cover (1).

6. The concealed caster wheel for a height-adjustable table as described in claim 1, characterized in that, The fixing member (21) is provided with positioning posts (30) on both sides near the center. The inner wall of the positioning posts (30) is provided with a surrounding plate (32) near both sides. The inner side of the surrounding plate (32) is provided with an installation groove C (34) near the center. The positioning posts (30) are all located in the corresponding installation groove C (34).

7. A concealed universal caster for a height-adjustable table that is easy to lock, as described in claim 6, is characterized in that... The inner wall of the enclosure (32) is provided with mounting grooves B (33) near the bottom, and the rotating wheel (8) is provided with a rotating shaft A (11) located in the mounting groove B (33).

8. A concealed universal caster for a height-adjustable table that is easy to lock, as described in claim 2, is characterized in that... The support ring (24) is made of nylon material.

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