Folding device of training table

Abstract

A folding device of a training table comprises a device shell fixed to the tops of table legs and connected with a table board, a rotating cavity is formed in the device shell, a limiting mechanism used for controlling the table board to rotate is arranged in the rotating cavity, and the bottom of the table board extends downwards to form a rotating plate used for stretching into the rotating cavity to be matched with the limiting mechanism. The limiting mechanism comprises a limiting block movably mounted in the rotating cavity, a compression spring pressed between the limiting block and the inner wall of the rotating cavity in an abutting mode and a driving block rotationally mounted in the rotating cavity, and the limiting block is clamped to the rotating plate in the limiting mechanism so that the table plate can be kept in an unfolded or folded state; and by rotating the driving blocks, the limiting blocks can make contact with clamping of the rotating plates so that the table plate can be conveniently rotated, the driving blocks in the folding mechanisms on the two sides can synchronously act through the linkage rods, the table plate can be controlled to rotate by rotating the driving block on any side, operation is simpler and more convenient, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of training tables, and particularly relates to a folding device for a training table. Background Art

[0002] A folding table is a table with a folding function, and its design and manufacture mainly focus on being convenient for folding, transportation, and storage. The design of the folding table allows it to be easily folded into a smaller volume, thus facilitating carrying and moving. This feature makes the folding table very popular in temporary hospitality venues, such as banquets, conferences, exhibitions, etc.

[0003] In the existing folding tables, reference can be made to the folding table disclosed in the Chinese utility model patent with the patent application number CN201210482828.6, which includes: a plurality of lower frames installed under the top plate; a joint member that pivotally supports the lower frame; a leg support that supports the joint member; a plurality of engaging grooves formed on the circumferential surface of the joint member; a locking link, one end of which is pivotally supported by the lower frame, and an engaging portion that can be engaged and disengaged with the engaging groove is provided at the other end; and an operating rod that can move synchronously with the locking link. This folding table has a height adjustment device such as a table that can easily and reliably adjust the height of the legs or the top plate to the ground while obtaining a reliable and stable use state and folding state of the top plate.

[0004] However, in the above structure, when folding the tabletop, it is necessary to simultaneously toggle the operating rods on both sides of the table legs to disengage the engaging protrusions from the engaging grooves, and then the tabletop can rotate upward around the pivot. When only toggling one side of the operating rod, folding cannot be achieved. Therefore, this structure requires two people to cooperate to toggle the two operating rods simultaneously or one person to spread both arms to toggle the two operating rods simultaneously to achieve folding, which increases the folding difficulty, is not easy to operate, cannot achieve quick folding, increases the difficulty of unfolding the tabletop, and has a poor experience. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a folding device for a training table.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A folding device for a training table, comprising a device housing fixed to the top of the table leg and connecting the tabletop. A rotating cavity is provided on the device housing, and a limiting mechanism for controlling the rotation of the tabletop is provided in the rotating cavity. A rotating plate extending downward from the bottom of the tabletop for extending into the rotating cavity and cooperating with the limiting mechanism is provided. The limiting mechanism includes a limiting block movably installed in the rotating cavity, a compression spring pressed between the limiting block and the inner wall of the rotating cavity, and a driving block rotatably installed in the rotating cavity. Under normal conditions, the compression spring drives the limiting block to be clamped on the rotating plate to keep the tabletop in the unfolded or folded state. When the driving block is rotated, the limiting block is driven to overcome the elastic force of the compression spring to release the clamping of the rotating plate, so that the tabletop is unfolded or folded. Two sets of the folding devices are provided and symmetrically arranged on the tops of the two side table legs, and the driving blocks in the two side folding devices are connected to each other.

[0008] In the present utility model, an installation groove for installing the limiting block is provided in the rotating cavity. The installation groove is set as a special-shaped groove. The outer contour of the limiting block corresponds to the contour of the installation groove. The limiting block is slidably matched with the installation groove, and the compression spring is located in the installation groove.

[0009] Furthermore, on the side of the limiting block away from the compression spring, a plurality of limiting columns for being clamped on the rotating plate and guiding columns for guiding the rotating plate are provided. The rotating plate is provided with limiting holes cooperating with the limiting columns and guiding holes cooperating with the guiding columns. The limiting holes are circular through holes, and the guiding holes are arc-shaped long holes. The radian direction of the guiding holes corresponds to the rotation direction of the rotating plate. The guiding holes limit the rotation angle of the rotating plate to 0-90°.

[0010] Furthermore, on the side of the driving block opposite to the limiting block, mutually cooperating driving surfaces are provided. The two sets of driving surfaces are inclined. The driving block drives the limiting block to move towards the inner side of the installation groove through the driving surface.

[0011] In the present utility model, a linkage rod extends from the side of the driving block facing the limiting block. The linkage rod passes through the limiting block and is fixedly connected to the linkage rod on the other side. When the driving block on one side is rotated, the driving block on the other side is synchronously actuated through the linkage rod.

[0012] Furthermore, a knob is further provided on the outer side of the device housing. One end of the driving block away from the linkage rod extends outward to form a driving rod. The driving rod passes through the device housing and is connected to the knob.

[0013] In the present utility model, the device housing includes two relatively cooperating outer shells, and the rotating cavity is formed between the two outer shells.

[0014] The present utility model has the following advantages and beneficial effects:

[0015] In the limiting mechanism, the tabletop is kept in the unfolded or folded state by the limiting block clamping on the rotating plate. By rotating the driving block, the limiting block can be made to contact and release the clamping of the rotating plate, thus facilitating the rotation of the tabletop. By synchronizing the driving blocks in the folding mechanisms on both sides through the linkage rod, rotating any one of the driving blocks can control the rotation of the tabletop, making the operation simpler and more convenient and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the drawings and embodiments:

[0017] Figure 1 is an installation schematic diagram of the folding device in this embodiment;

[0018] Figure 2 is an exploded view of the folding device in this embodiment;

[0019] Figure 3 is a schematic diagram of the driving block and the limiting block in this embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The present invention is not limited to the following embodiments.

[0021] As Figures 1 to 3 shown, this embodiment discloses a folding device for a training table, including a device housing 1 fixed to the top of the table leg for connecting the tabletop. A rotating cavity 10 is provided on the device housing 1. A limiting mechanism 2 for controlling the rotation of the tabletop is provided in the rotating cavity 10. A rotating plate 4 extending downward from the bottom of the tabletop and adapted to extend into the rotating cavity 10 and cooperate with the limiting mechanism 2 is provided. The limiting mechanism 2 includes a limiting block 21 movably installed in the rotating cavity 10, a compression spring 22 pressed between the limiting block 21 and the inner wall of the rotating cavity 10, and a driving block 23 rotatably installed in the rotating cavity 10. Under normal conditions, the compression spring 22 urges the limiting block 21 to clamp on the rotating plate 4 to keep the tabletop in the unfolded or folded state. When the driving block 23 rotates, it urges the limiting block 21 to overcome the elastic force of the compression spring 22 to release the clamping of the limiting block 21 on the rotating plate 4. At this time, the tabletop can be flipped to unfold or fold the tabletop; preferably, two sets of the folding devices are provided and symmetrically arranged on the tops of the table legs on both sides. The driving blocks 23 in the folding devices on both sides are connected to each other. Rotating any one of the driving blocks 23 can control the rotation of the tabletop.

[0022] In this embodiment, an installation groove 11 for installing the limit block 21 is provided in the rotation cavity 10. In order to enable the limit block 21 to play a role in supporting and positioning, the installation groove 11 is set as a special-shaped groove. The outer contour of the limit block 21 corresponds to the contour of the installation groove 11. When the limit block 21 is installed in the installation groove 11, it can prevent the limit block 21 from rotating, thereby providing the function of supporting and positioning. Specifically, the limit block 21 is in sliding fit with the installation groove 11, and the compression spring 22 is located in the installation groove 11.

[0023] Further, on the side of the limit block 21 away from the compression spring 22, there are multiple limit posts 211 for clamping on the rotating plate 4 and a guiding post 212 for guiding the rotating plate 4. The rotating plate 4 is provided with a limit hole 40 for cooperating with the limit post 211 and a guiding hole 41 for cooperating with the guiding post 212. Preferably, the limit hole 40 is a circular through hole, and the guiding hole 41 is an arc-shaped long hole. The radian direction of the guiding hole 41 corresponds to the rotating direction of the rotating plate 4, and the guiding hole 41 limits the rotation angle of the rotating plate 4 to 0 - 90°. Without being limited to the above embodiment, the limit posts 211 can also be arranged in the installation groove.

[0024] Further, on the sides of the driving block 23 and the limit block 21 facing each other, there are mutually cooperating driving surfaces 24. The two groups of driving surfaces 24 are inclined. When the driving block 23 is rotated, the limit block 21 is driven to move towards the inner side of the installation groove 11 through the driving surface 24, so that the limit post 211 is disengaged from the limit hole 40.

[0025] In this embodiment, in order to enable the folding mechanisms on both sides to be interconnected, on the driving block 23, a linkage rod 230 extends towards the limit block 21. The linkage rod 230 on one side passes through the limit block 21 and is fixedly connected to the linkage rod 230 on the other side. The driving blocks 23 in the folding devices on both sides are interconnected through the linkage rod 230. When the driving block 23 on one side is rotated, the driving block 23 on the other side is synchronously actuated through the linkage rod 230.

[0026] Further, in order to facilitate the rotation of the driving block 23, a knob 3 is also provided on the folding device. One end of the driving block 23 away from the linkage rod 230 extends outwards to form a driving rod 231, and the driving rod 231 passes through the device housing 1 and is connected to the knob 3.

[0027] In this embodiment, the device housing 1 includes two relatively cooperating outer shells 12, and the rotation cavity 10 is formed between the two outer shells 12.

[0028] The above content described in this specification is only an example of the present utility model. Those skilled in the technical field to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar ways for substitution, as long as they do not deviate from the content of this specification of the present utility model or exceed the scope defined by this claims, they should fall within the protection scope of the present utility model.

Claims

1. A folding device for a training table, characterized in that: It includes a device housing (1) fixed to the top of the table leg to connect the tabletop. A rotation cavity (10) is provided on the device housing (1). A limit mechanism (2) for controlling the rotation of the tabletop is provided in the rotation cavity (10). A rotation plate (4) extending downward from the bottom of the tabletop is provided to extend into the rotation cavity (10) and cooperate with the limit mechanism (2). The limit mechanism (2) includes a limit block (21) movably installed in the rotation cavity (10), a compression spring (22) pressed between the limit block (21) and the inner wall of the rotation cavity (10), and a drive block (23) rotatably installed in the rotation cavity (10). Under normal conditions, the compression spring (22) drives the limit block (21) to be clamped on the rotation plate (4) to keep the tabletop in the unfolded or folded state. When the drive block (23) is rotated, the limit block (21) is driven to overcome the elastic force of the compression spring (22) to release the clamping of the rotation plate (4), so that the tabletop is unfolded or folded. There are two groups of the folding devices and they are symmetrically arranged on the tops of the two side table legs. The drive blocks (23) in the two side folding devices are connected to each other.

2. The folding device of a training table according to claim 1, characterized in that: An installation groove (11) for installing the limit block (21) is provided in the rotation cavity (10). The installation groove (11) is set as a special-shaped groove. The outer contour of the limit block (21) corresponds to the contour of the installation groove (11). The limit block (21) is in sliding fit with the installation groove (11). The compression spring (22) is located in the installation groove (11).

3. The folding device of a training table according to claim 1, characterized in that: On the side of the limit block (21) away from the compression spring (22), there are multiple limit posts (211) for clamping on the rotation plate (4) and guide posts (212) for guiding the rotation plate (4). The rotation plate (4) is provided with limit holes (40) cooperating with the limit posts (211) and guide holes (41) cooperating with the guide posts (212). The limit holes (40) are circular through holes, and the guide holes (41) are arc-shaped long holes. The radian direction of the guide holes (41) corresponds to the rotation direction of the rotation plate (4). The guide holes (41) limit the rotation angle of the rotation plate (4) to 0-90°.

4. The folding device of a training table according to claim 2, characterized in that: On the sides of the drive block (23) opposite to the limit block (21), there are mutually cooperating drive surfaces (24). The two groups of drive surfaces (24) are inclined. The drive block (23) drives the limit block (21) to move towards the inner side of the installation groove (11) through the drive surface (24).

5. The folding device of a training table according to claim 1, characterized in that: A linkage rod (230) extends from the side of the drive block (23) facing the limit block (21). The linkage rod (230) passes through the limit block (21) and is fixedly connected to the linkage rod (230) on the other side. When one side of the drive block (23) is rotated, the drive block (23) on the other side is synchronously actuated through the linkage rod (230).

6. The folding device of a training table according to claim 5, characterized in that: A knob (3) is further provided on the outside of the device housing (1). One end of the drive block (23) away from the linkage rod (230) extends outward to form a drive rod (231). The drive rod (231) passes through the device housing (1) and is connected to the knob (3).

7. The folding device of a training table according to claim 1, wherein: The device housing (1) includes two relatively mating outer shells (12), and the rotation cavity (10) is formed between the two outer shells (12).

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