A table whose tabletop can be suspended at any angle.

Abstract

The application discloses a table with a table board capable of hovering at an arbitrary angle, which comprises a supporting frame and a mounting frame for mounting the table board, the mounting frame being rotationally connected to the supporting frame, the supporting frame comprising two supporting rods arranged symmetrically left and right, the supporting rods being vertically arranged, the top end of the supporting rod being provided with a supporting seat for bearing the mounting frame, the rear side of the supporting seat being provided with a first connecting seat, the first connecting seat being provided with a one-way damping structure, the bottom surface of the mounting frame being provided with a second connecting seat, the second connecting seat being rotationally connected to the first connecting seat through the one-way damping structure, the mounting frame having a horizontal unfolded state and a vertical storage state, and the one-way damping structure being used for limiting the switching of the mounting frame from the storage state to the unfolded state. The application can avoid the situation that the table board is rapidly downwardly turned and violently collides with the supporting frame when the conference table is unfolded.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of furniture, in particular to a table with a table board hovering at an arbitrary angle. BACKGROUND

[0002] A conference table or a training table is a table for facilitating the use of participants or trainers, which is often folded and stored after the meeting. In the prior art, the middle part of the table board of such a table is hingedly connected to a support frame, and the support frame is provided with a limiting piece for limiting the table board in a horizontal position. When the table is stored, the table board is pulled upward to rotate to a vertical position, so that the volume of the table is reduced, the storage space is saved, and the table is stacked. When using the table, the table board is pulled downward to rotate against the limiting piece, so that the table edge remains in a horizontal position, facilitating the participants to take notes or read meeting materials. However, the damping between the table board and the support frame of such a table is very small, and when switching from the vertical storage state to the horizontal expansion state, the table board needs to be held by hand to avoid direct downward rotation and impact with the limiting piece, which is inconvenient to operate and consumes a lot of effort. SUMMARY

[0003] In order to solve the above technical problems, the purpose of the present application is to provide a table with a table board hovering at an arbitrary angle. The second connecting seat is rotatably connected to the first connecting seat through a one-way damping structure. When the installation frame is switched from the storage state to the expansion state, the installation frame will be subjected to resistance, thereby avoiding the rapid downward rotation of the table board and the hard impact with the support frame. When the installation frame is switched from the expansion state to the storage state, the installation frame will not be subjected to resistance from the one-way damping structure, thereby realizing the rapid storage of the installation frame.

[0004] The technical scheme of the present application is as follows:

[0005] A table with a table board hovering at an arbitrary angle, comprising a support frame and an installation frame for installing the table board, the installation frame being rotatably connected to the support frame, the support frame comprising two support rods arranged symmetrically left and right, the support rods being vertically arranged, the top end of the support rod being provided with a support seat for bearing the installation frame, the rear side of the support seat being provided with a first connecting seat, the first connecting seat being provided with a one-way damping structure, the bottom surface of the installation frame being provided with two second connecting seats, the second connecting seats corresponding to the first connecting seats one by one, the second connecting seats being rotatably connected to the corresponding first connecting seats through the one-way damping structure, the installation frame having a horizontal expansion state and a vertical storage state, the one-way damping structure being used to limit the installation frame from switching from the storage state to the expansion state.

[0006] In the present scheme, when the mounting frame is switched from the storage state to the unfolded state, i.e. the table board is rotated from vertical to horizontal, the one-way damping structure generates resistance to prevent the table board from rapidly rotating downward and colliding with the support seat. When the mounting frame is switched from the unfolded state to the storage state, the one-way damping structure does not generate resistance, ensuring the rapid storage of the mounting frame. It should be noted that the first connecting seat is arranged at the rear side of the support seat, ensuring sufficient rotating space for the mounting frame. The second connecting seat is rotatably connected to the first connecting seat through the one-way damping structure, saving installation space, making the table structure compact and occupying small space.

[0007] As a preference, the first connecting seat is a ring-shaped connecting seat, the bottom surface of the second connecting seat is provided with an arc-shaped groove, the curvature of the arc-shaped groove is consistent with the curvature of the ring-shaped connecting seat, the outer end surface of the arc-shaped groove is provided with a baffle, the baffle and the ring-shaped connecting seat form a cylindrical cavity, and the one-way damping structure is located in the cylindrical cavity. By setting the curvature of the arc-shaped groove consistent with the curvature of the ring-shaped connecting seat, the second connecting seat is facilitated to rotate relative to the first connecting seat. The baffle and the ring-shaped connecting seat form a cylindrical cavity for accommodating the one-way damping structure, realizing hidden installation of the one-way damping structure, and ensuring the regularity of the first connecting seat and the second connecting seat.

[0008] As preferred, the one-way damping structure comprises a ratchet wheel, a clamping column for one-way limiting rotation of the ratchet wheel, and a first clamping plate and a second clamping plate arranged on both sides of the ratchet wheel, the ratchet wheel being clamped between the first clamping plate and the second clamping plate, the first clamping plate being fixedly connected with the baffle, the first clamping plate and the second clamping plate being connected through a connecting structure, two adjacent teeth on the outer circumferential surface of the ratchet wheel forming a containing groove, the containing groove and the inner side wall of the first connecting seat forming a limiting space, the clamping column being movably arranged in the limiting space, and the limiting space being gradually expanded in the clockwise direction. It can be understood that, since the limiting space is gradually expanded in the clockwise direction, i.e. in the radial direction, the limiting space has a relatively wide first end and a relatively narrow second end. In actual work, the first clamping plate and the second clamping plate clamp the left and right two end surfaces of the ratchet wheel, when the installation frame is switched from the storage state to the unfolded state, the installation frame rotates downward and drives the second connecting seat to rotate clockwise, the first clamping plate connected with the second connecting seat drives the second clamping plate to rotate synchronously through the connecting structure, the first clamping plate and the second clamping plate drive the ratchet wheel to rotate, the clamping column in the limiting space moves from the first end to the second end, and is then clamped at the second end, and then the installation frame continues to rotate downward, at this time, the first clamping plate and the second clamping plate form sliding friction with the two end surfaces of the ratchet wheel, i.e. the friction between the ratchet wheel and the first clamping plate and the second clamping plate arranged between the two sides of the ratchet wheel provides damping; when the installation frame is switched from the unfolded state to the storage state, the clamping column in the limiting space moves from the second end to the first end and rotates with the ratchet wheel, realizing one-way clamping of the ratchet wheel, i.e. ensuring that the installation frame will not be subjected to damping generated by the one-way damping structure when it is switched from the unfolded state to the storage state, facilitating quick storage of the installation frame.

[0009] As preferred, an installation groove matched with the first clamping plate is arranged on the end surface of the baffle facing the annular connecting seat, the first clamping plate is fixedly installed in the installation groove and the end surface is higher than the top surface of the installation groove. By arranging the first clamping plate to be higher than the installation groove, the first clamping plate and the second clamping plate are facilitated to clamp the ratchet wheel.

[0010] As preferred, the first clamping plate and the second clamping plate are connected through a connecting structure, the connecting structure comprising a connecting shaft, an axial shaft hole being arranged on the ratchet wheel, and the connecting shaft being in interference fit with the shaft hole.

[0011] As preferred, the connecting structure further comprises a screw rod, a through hole being arranged on the first clamping plate, a through hole being arranged on the connecting shaft along the axial direction of the connecting shaft, a threaded hole matched with the screw rod being arranged on the second clamping plate, the through hole, the through hole and the threaded hole being coaxially arranged, and the screw rod being locked in the threaded hole after sequentially passing through the through hole and the through hole. The friction between the first clamping plate, the second clamping plate and the ratchet wheel is adjusted through the locking degree of the screw rod, and the use scene of the table is enriched.

[0012] Preferably, the mounting frame has a groove at the position corresponding to the support base, the groove being adapted to the support base, and the second connecting seat is located within the groove. By providing the groove, the stability of the mounting frame in the unfolded state is improved.

[0013] Preferably, the support rod has a positioning hole on its rear side, and the mounting frame has a positioning rod corresponding to the positioning hole. When the mounting frame is in the retracted state, the positioning rod is located within the positioning hole. By setting the positioning rod and the positioning hole, the mounting frame is limited in the vertical direction, ensuring that the mounting frame remains vertical when retracted.

[0014] Preferably, the support frame further includes a connecting rod disposed between the two support rods, and a plurality of support blocks are sleeved on the connecting rod, with the top surface of the support blocks being horizontally positioned. By adding support blocks, the support area of ​​the support frame on the tabletop is increased, improving the stability of the table during use.

[0015] The principle and beneficial effects of the present invention, which adopts the above technical solution, are as follows:

[0016] 1. The first and second connecting seats are connected by a one-way damping structure to prevent the table from rotating rapidly and colliding with the support seat. The one-way damping structure only generates resistance in the clockwise direction. When the mounting frame switches from the unfolded state to the retracted state, the one-way damping structure does not obstruct the mounting frame, ensuring the rapid retraction of the mounting frame.

[0017] 2. By setting the first clamping plate higher than the mounting slot, it is easier for the first clamping plate and the second clamping plate to clamp the ratchet.

[0018] 3. The baffle and the annular connecting seat form a cylindrical cavity to accommodate the unidirectional damping structure, thereby enabling the concealed installation of the unidirectional damping structure and ensuring the regularity of the first and second connecting seats. Attached Figure Description

[0019] Figure 1 This is a diagram showing the table's mounting frame in a vertical, folded-up position.

[0020] Figure 2 This is a schematic diagram of the mounting frame and support bracket;

[0021] Figure 3 This is a diagram showing the table's mounting frame in a horizontally unfolded state;

[0022] Figure 4 It is a schematic diagram of the support base, the first connecting base, the second connecting base, and the unidirectional damping structure;

[0023] Figure 5 This is a schematic diagram of the support base, the first connecting base, and the unidirectional damping structure;

[0024] Figure 6 This is a schematic diagram of the support base and the first connecting base;

[0025] Figure 7 This is a schematic diagram of the second connector;

[0026] Figure 8 This is an exploded schematic diagram of a unidirectional damping structure;

[0027] Figure 9 It is a cross-sectional view of the first connecting seat, the one-way damping structure, and the connecting shaft;

[0028] Figure 10 It is a sectional view of the first connecting seat, ratchet, and connecting shaft.

[0029] The labels for the attached figures are as follows:

[0030] 1. Support frame; 2. Mounting frame; 3. Support rod; 4. Support base; 5. One-way damping structure; 6. First connecting seat; 7. Second connecting seat; 8. Arc-shaped groove; 9. Baffle; 10. Cylindrical cavity; 11. Ratchet; 12. Locking pin; 13. First clamping plate; 14. Second clamping plate; 15. Limiting space; 16. Connecting shaft; 17. Shaft hole; 18. Through hole; 19. Through hole; 20. Threaded hole; 21. Connecting rod; 22. Support block; 23. Positioning rod; 24. Groove; 25. Table; 26. Receiving groove; 27. First end; 28. Second end. Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0033] The specific embodiments of the present invention are as follows:

[0034] like Figures 1 to 10As shown, the present invention provides a table with a tabletop that can be suspended at any angle, including a support frame 1 and a mounting frame 2 for mounting the tabletop 25. The mounting frame 2 is rotatably connected to the support frame 1. The support frame 1 includes two support rods 3 arranged symmetrically on the left and right sides. The support rods 3 are vertically arranged. The top of the support rod 3 is provided with a support seat 4 for supporting the mounting frame 2. The rear side of the support seat 4 is provided with a first connecting seat 6. The first connecting seat 6 is provided with a one-way damping structure 5. The bottom surface of the mounting frame 2 is provided with two second connecting seats 7, and the second connecting seats 7 correspond one-to-one with the first connecting seats 6. The second connecting seat 7 is rotatably connected to the corresponding first connecting seat 6 through the one-way damping structure 5. The mounting frame 2 has a horizontal unfolded state and a vertical retracted state. The one-way damping structure 5 is used to restrict the mounting frame 2 from switching from the retracted state to the unfolded state. The first connecting seat 6 is an annular connecting seat. The bottom surface of the second connecting seat 7 is provided with an arc-shaped groove 8. The arc of the arc-shaped groove 8 is consistent with the arc of the annular connecting seat. The outer end face of the arc-shaped groove 8 is provided with a baffle 9. The baffle 9 and the annular connecting seat form a cylindrical cavity 10. The one-way damping structure 5 is located inside the cylindrical cavity 10.

[0035] In this design, when the mounting frame 2 switches from the retracted state to the unfolded state, i.e., the tabletop 25 rotates from vertical to horizontal, the one-way damping structure 5 generates resistance to prevent the tabletop 25 from rapidly rotating downwards and colliding with the support base 4. When the mounting frame 2 switches from the unfolded state to the retracted state, the one-way damping structure 5 generates no resistance, ensuring the rapid retraction of the mounting frame 2. It should be noted that the first connecting seat 6 is located on the rear side of the support base 4, ensuring that the mounting frame 2 has sufficient rotation space. The second connecting seat 7 is rotatably connected to the first connecting seat 6 through the one-way damping structure 5, saving installation space and making the table structure compact and occupying little space. In addition, by setting the arc of the arc-shaped groove 8 to match the arc of the annular connecting seat, it is easy for the second connecting seat 7 to rotate relative to the first connecting seat 6. The baffle 9 and the annular connecting seat form a cylindrical cavity 10 for accommodating the one-way damping structure 5, realizing the concealed installation of the one-way damping structure 5 and ensuring the neatness of the first connecting seat 6 and the second connecting seat 7.

[0036] The unidirectional damping structure 5 includes a ratchet 11, a locking pin 12 for unidirectionally restricting the rotation of the ratchet 11, and a first clamping plate 13 and a second clamping plate 14 disposed on both sides of the ratchet 11. The ratchet 11 is clamped between the first clamping plate 13 and the second clamping plate 14. The first clamping plate 13 is fixedly connected to the baffle 9, and the first clamping plate 13 and the second clamping plate 14 are connected by a connecting structure. Two adjacent teeth on the outer circumference of the ratchet 11 form a receiving groove 26. The receiving groove 26 and the inner sidewall of the first connecting seat 6 form a limiting space 15. The locking pin 12 is movably disposed within the limiting space 15, and the limiting space 15 gradually expands in a clockwise direction. It can be understood that since the limiting space 15 gradually expands in a clockwise direction, the limiting space 15 has a wider first end 27 and a narrower second end 28. In actual operation, the first clamping plate 13 and the second clamping plate 14 clamp the left and right end faces of the ratchet 11. When the mounting frame 2 switches from the retracted state to the unfolded state, the mounting frame 2 rotates downwards and drives the second connecting seat 7 to rotate clockwise. The first clamping plate 13, connected to the second connecting seat 7, drives the second clamping plate 14 to rotate synchronously through the connecting structure. The first clamping plate 13 and the second clamping plate 14 drive the ratchet 11 to rotate, and the locking pin 12 located in the limiting space 15 moves from the first end 27 to the second end 28 until it is locked at the second end 28. Then the mounting frame 2 continues to rotate downwards. The first clamping plate 13 and the second clamping plate 14 form sliding friction with the two end faces of the ratchet 11. That is, the friction between the ratchet 11 and the first clamping plate 13 and the second clamping plate 14 located on both sides of the ratchet 11 provides damping. When the mounting frame 2 switches from the unfolded state to the retracted state, the locking pin 12 located in the limiting space 15 moves from the second end 28 to the first end 27 and rotates with the ratchet 11, realizing one-way engagement with the ratchet 11. This ensures that the mounting frame 2 is not damped by the one-way damping structure 5 when switching from the unfolded state to the retracted state, facilitating quick retraction of the mounting frame 2. In this embodiment, the end face of the baffle 9 facing the annular connecting seat is provided with a mounting groove (not shown in the figure) that matches the first clamping plate 13. The first clamping plate 13 is fixedly installed in the mounting groove and its end face is higher than the top surface of the mounting groove. By setting the first clamping plate 13 higher than the mounting groove, it is convenient for the first clamping plate 13 and the second clamping plate 14 to clamp the ratchet 11.

[0037] The first clamping plate 13 and the second clamping plate 14 are connected by a connecting structure, which includes a connecting shaft 16 and a screw. A ratchet 11 has an axial hole 17, and the connecting shaft 16 is interference-fitted with the shaft hole 17. The first clamping plate 13 has a through hole 18, and the connecting shaft 16 has a through hole 19 along its own axis. The second clamping plate 14 has a threaded hole 20 adapted to the screw. The through hole 18, the through hole 19, and the threaded hole 20 are coaxially aligned. The screw passes through the through hole 18 and the through hole 19 in sequence and is then locked in the threaded hole 20. The friction between the first clamping plate 13, the second clamping plate 14, and the ratchet 11 is adjusted by the tightness of the screw, enriching the table's usage scenarios. In actual use, adjust the appropriate tightening degree according to the usage needs. Specifically, when there is a need to write on the table, the screw can be tightened. At this time, the friction between the first clamp plate 13, the second clamp plate 14 and the ratchet 11 is greater, which can rotate the tabletop 25 to a suitable writing angle for use. When there is not much need to write on the table, the screw can be loosened to avoid excessive damping when lowering the mounting frame 2.

[0038] The mounting frame 2 has a groove 24 at the position corresponding to the support base 4. The groove 24 is adapted to the support base 4, and the second connecting seat 7 is located in the groove 24. By setting the groove 24, the stability of the mounting frame 2 in the unfolded state is improved. The support rod 3 has a positioning hole on its rear side, and the mounting frame 2 has a positioning rod corresponding to the positioning hole. When the mounting frame 2 is in the folded state, the positioning rod is located in the positioning hole. The support frame 1 also includes a connecting rod 21 set between the two support rods 3. Several support blocks 22 are sleeved on the connecting rod 21. The top surface of the support block 22 is set horizontally. By setting the positioning rod 23 and the positioning hole, the mounting frame 2 is limited in the vertical direction, so that the mounting frame 2 remains vertical when it is in the folded state. By setting the support block 22, the support area of ​​the support frame 1 on the tabletop 25 is increased, and the stability of the table during use is improved.

[0039] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A table with a tabletop that can be suspended at any angle, comprising a support frame and a mounting frame for mounting the tabletop, the mounting frame being pivotally connected to the support frame, characterized in that, The support frame comprises two support rods arranged symmetrically left and right, the support rods are vertically arranged, the top end of the support rod is provided with a support seat for bearing the mounting frame, the rear side of the support seat is provided with a first connecting seat, the first connecting seat is an annular connecting seat, the first connecting seat is provided with a one-way damping structure, the bottom surface of the mounting frame is provided with two second connecting seats, the second connecting seat corresponds to the first connecting seat one by one, the bottom surface of the second connecting seat is provided with an arc-shaped groove, the curvature of the arc-shaped groove is consistent with the curvature of the annular connecting seat, the outer end surface of the arc-shaped groove is provided with a baffle, the baffle and the annular connecting seat form a cylindrical cavity, and the one-way damping structure is located in the cylindrical cavity; the second connecting seat is rotationally connected with the corresponding first connecting seat through the one-way damping structure, the one-way damping structure comprises a ratchet wheel, a clamping column for one-way limiting rotation of the ratchet wheel, and first and second clamping plates arranged on both sides of the ratchet wheel, the ratchet wheel is clamped between the first and second clamping plates, the first clamping plate is fixedly connected with the baffle, the first and second clamping plates are connected through a connecting structure, adjacent two teeth on the outer circumferential surface of the ratchet wheel form a containing groove, the containing groove and the inner side wall of the first connecting seat form a limiting space, the clamping column is movably arranged in the limiting space, and the limiting space is gradually expanded in the clockwise direction.

2. The table of claim 1, wherein, The end surface of the baffle towards the annular connecting seat is provided with a mounting groove matched with the first clamping plate, and the first clamping plate is fixedly installed in the mounting groove and the end surface is higher than the top surface of the mounting groove.

3. The table of claim 1, wherein, The connecting structure comprises a connecting shaft, an axial hole is arranged on the ratchet wheel, and the connecting shaft is gap-fitted with the axial hole.

4. The table of claim 3, wherein, The connecting structure further comprises a screw rod, a through hole is arranged on the first clamping plate, the connecting shaft is provided with a penetrating hole in the axial direction of the connecting shaft, a threaded hole matched with the screw rod is arranged on the second clamping plate, and the through hole, the penetrating hole and the threaded hole are coaxially arranged, and the screw rod is sequentially locked in the threaded hole after passing through the through hole and the penetrating hole.

5. The table of claim 1, wherein, The mounting frame is provided with a groove corresponding to the support seat, the groove is matched with the support seat, and the second connecting seat is located in the groove.

6. The table of claim 1, wherein, The rear side of the support rod is provided with a positioning hole, and the mounting frame is provided with a positioning rod corresponding to the positioning hole, when the mounting frame is in the vertical storage state, the positioning rod is located in the positioning hole.

7. The table of claim 1, wherein, The support frame further comprises a connecting rod arranged between the two support rods, a plurality of support blocks are sleeved on the connecting rod, and the top surface of the support block is horizontally arranged.

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