Folding mechanism of training table

Abstract

A folding mechanism of a training table comprises a fixed seat used for being fixed to the top of a table leg, a movable seat used for being fixed to the bottom of a table board, an operating rod used for controlling folding of the table board and a reset spring used for driving the operating rod to reset, the movable seat is hinged to the fixed seat, and the operating rod is installed on the movable seat. The reset spring drives the operation rod to be clamped to the rear end of the fixed base so that the movable base can be fixed. The operating rods are movably mounted on the movable seats and are driven to be clamped on the fixed seats through the reset springs, the operating rods on the two sides are linked through the connecting rods, and the operating rods on the two sides are synchronously driven to slide outwards when the connecting rods are pulled outwards, so that clamping connection with the fixed seats is relieved, and the table plate can be easily turned over to be folded at the moment. And in the process of unfolding the table plate, the operation rod does not need to be pulled again through the cooperation of the guide surface and the guide arc, the table plate can drive the folding mechanism to be fixed by itself by directly overturning the table plate downwards, the operation is simpler and faster, and the use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of training tables, in particular to a folding mechanism of a training table. Background Art

[0002] A folding table is a table with a folding function. Its design and manufacture are mainly centered around easy folding, transportation and storage. The design of the folding table allows it to be easily folded into a smaller volume, making it easy to carry and move. This feature makes folding tables very popular in temporary hospitality venues such as banquets, conferences, exhibitions, etc.

[0003] Among the existing folding tables, reference can be made to the folding table disclosed in the Chinese utility model patent application number CN201210482828.6, which includes: a plurality of lower frames installed under the top plate; a coupling member that rotatably supports the lower frame; a leg support that supports the coupling member; a plurality of engaging grooves formed on the circumference of the coupling member; a locking link, one end of which is rotatably supported by the lower frame, and a coupling portion that can be engaged and disengaged from the engaging groove is provided at the other end; and an operating rod that can move with the locking link. The folding table has a height adjustment device 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 table top, it is necessary to simultaneously move the operating levers on both sides of the table legs to disengage the engaging protrusions from the engaging grooves, and then the table top can be rotated upward around the pivot. Folding cannot be achieved by moving the operating lever on one side alone. Therefore, when folding the table top, this structure requires two people to cooperate in moving the operating levers on both sides at the same time or one person to move the operating levers on both sides with both arms open at the same time, which increases the difficulty of folding, makes it difficult to operate, and cannot be folded quickly.

[0005] Moreover, since there is no structure on the locking protrusion that can drive it to expand outward, when the folded desktop wants to be unfolded, it is also necessary to simultaneously move the operating levers on both sides of the desktop so that the locking protrusion can be smoothly snapped into the locking groove for fixation. This will increase the difficulty of unfolding the desktop and the experience is poor. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a folding mechanism for a training table.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A folding mechanism for a training table, comprising a fixed seat for fixing on the top of a table leg, a movable seat for fixing on the bottom of a tabletop, an operating rod for controlling the folding of the tabletop, and a return spring for driving the operating rod to reset. The movable seat is hinged to the fixed seat, the operating rod is movably installed on the movable seat, the return spring drives the operating rod to be clamped at the rear end of the fixed seat to fix the movable seat, and pulling the operating rod can release the clamping with the fixed seat. The upward flipping of the movable seat drives the folding of the tabletop. There are two sets of folding mechanisms, which are respectively installed at the tops of the two side table legs and connected to the tabletop. The two sets of folding mechanisms are connected to the operating rod through a connecting rod to achieve linkage.

[0009] In the present utility model, a clamping portion for clamping on the fixed seat is provided on the operating rod, a buckle for cooperating with the clamping portion to be clamped is provided on the fixed seat, a guiding surface is provided on the buckle, a guiding arc is provided on the clamping portion corresponding to the direction of the guiding surface. During the downward flipping of the movable seat, the guiding arc is abutted against the guiding surface, and the gravity of the tabletop is used to drive the operating rod to move outwards and bypass the buckle. Subsequently, the return spring pulls the operating rod to reset, and the clamping portion is clamped on the buckle to complete the fixation.

[0010] Furthermore, a movable cavity for installing the operating rod is provided on the movable seat. The movable cavity is arranged with an upward opening. The operating rod is placed into the movable cavity from the opening. A cover plate for covering the opening of the movable cavity is further provided on the movable seat. The cover plate presses and fixes the operating rod, and the operating rod is in sliding fit with the movable cavity and the cover plate.

[0011] Furthermore, a limiting groove extending along the pulling direction of the operating rod is provided at the bottom of the movable cavity, and a limiting rib for sliding fit in the limiting groove is provided at the bottom of the operating rod.

[0012] In the present utility model, the clamping portion is located at the inner end of the operating rod. A travel hole for the clamping portion to pass downward and cooperate with the buckle is provided at the inner end of the movable cavity. The two ends of the return spring are respectively hooked on the upper end of the clamping portion and a stud tightened on the top of the movable seat. When the operating rod is pulled outwards, the clamping portion moves in the travel hole.

[0013] In the present utility model, a connecting head for conveniently fixing the connecting rod is further provided at the outer end of the operating rod. A connecting hole for the connecting rod to pass horizontally is provided on the connecting head. The two ends of the connecting rod are connected to the operating rods on both sides through the connecting holes.

[0014] In the present utility model, a support surface for supporting a movable seat and a first hinge seat for hinging the movable seat are provided on the top of the fixed seat. The first hinge seat is located at the front end of the support surface. A pressing surface for pressing against the support surface and a second hinge seat for hinging on the first hinge seat are provided at the bottom of the movable seat. The second hinge seat is located at the front end of the pressing surface. Both the support surface and the pressing surface are horizontally arranged. When the tabletop is unfolded, it is supported by pressing against the support surface through the pressing surface.

[0015] The present utility model has the following advantages and beneficial effects:

[0016] The operating rod is movably installed on the movable seat and is driven by a return spring to be clamped on the fixed seat. The operating rods on both sides are linked through a connecting rod. When the connecting rod is pulled outwards, the operating rods on both sides are synchronously driven to slide outwards, thereby releasing the clamping with the fixed seat. At this time, the tabletop can be easily flipped to achieve folding. During the process of unfolding the tabletop, through the cooperation of the guiding surface and the guiding arc, there is no need to pull the operating rod again. Directly flipping the tabletop downwards can enable the tabletop to drive the folding mechanism to be fixed by itself, and the operation is simpler and faster, and it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0018] Figure 1 It is an installation schematic diagram of the folding mechanism in this embodiment;

[0019] Figure 2 It is an exploded view of the folding mechanism in this embodiment;

[0020] Figure 3 It is a bottom view of the movable seat in this embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. The present utility model is not limited to the following embodiments.

[0022] Such as Figures 1 to 3As shown in the figure, this embodiment discloses a folding mechanism for a training table, which includes a fixed seat 1 for fixing on the top of the table leg, a movable seat 2 for fixing on the bottom of the tabletop, an operating rod 3 for controlling the folding of the tabletop, and a return spring 4 for driving the operating rod 3 to reset. The front part of the movable seat 2 is hinged to the front end of the fixed seat 1. The operating rod 3 is movably installed in the middle and rear part of the movable seat 2. The return spring 4 drives the operating rod 3 to be clamped at the rear end of the fixed seat 1 to fix the movable seat 2. When folding the tabletop, by pulling the operating rod 3 backward to release its clamping on the fixed seat 1, at this time, the movable seat 2 can be turned upward to drive the tabletop to fold. Preferably, two sets of folding mechanisms are provided and are respectively installed at the top of the two side table legs and connected to the tabletop. The two sets of folding mechanisms are connected to the operating rod 3 through a connecting rod to achieve linkage.

[0023] In this embodiment, a clamping portion 31 for clamping on the fixed seat 1 is provided on the operating rod 3. A buckle 11 for cooperating with the clamping portion 31 to clamp is provided on the fixed seat 1. A guiding surface 12 inclined downward is provided on the buckle 11. A guiding arc 32 corresponding to the direction of the guiding surface 12 is provided on the clamping portion 31. During the process of unfolding the tabletop, the movable seat 2 turns downward so that the guiding arc 32 abuts against the guiding surface 12. Subsequently, the gravity of the tabletop will cause the movable seat 2 to continue to turn downward, thereby driving the operating rod 3 to move outward and bypass the buckle 11. When the movable seat 2 tends to be horizontal, the return spring 4 pulls the operating rod 3 to reset so that the clamping portion 31 is clamped on the buckle to complete the fixation. Therefore, this structure does not require pulling the operating rod 3 again during the process of unfolding the tabletop. Directly turning the tabletop downward can make the tabletop drive the folding mechanism to fix itself, and the unfolding method is simpler and faster, and it is more convenient to use.

[0024] Furthermore, a movable cavity 20 for installing the operating rod 3 is provided on the movable seat 2. In order to facilitate the installation of the operating rod 3, the movable cavity 20 is arranged with an upward opening. The operating rod 3 is placed into the movable cavity 20 from the opening. In order to be able to fix the operating rod 3, a cover plate 21 for covering the opening of the movable cavity 20 is further provided on the movable seat 2. After the operating rod 3 is placed into the movable cavity 20, the operating rod 3 is pressed and fixed by the cover plate 21. It should be noted that the operating rod 3 is slidably matched with the movable cavity 20 and the cover plate 21 to facilitate pulling the operating rod 3 outward.

[0025] Furthermore, in order to prevent the operating rod 3 from shaking during the process of being pulled outward, a limiting groove 22 extending along the pulling direction of the operating rod 3 is provided at the bottom of the movable cavity 20. A limiting rib 33 slidably matched in the limiting groove 22 is provided at the bottom of the operating rod 3.

[0026] Further, the clamping portion 31 is located at the inner end of the operating rod 3, and a travel hole 23 for the clamping portion 31 to pass downward and cooperate with the buckle 11 is provided at the inner end of the movable cavity 20; preferably, both ends of the return spring 4 are respectively hooked on the upper end of the clamping portion 31 and the stud tightened on the top of the movable seat 2, and when the operating rod 3 is pulled outward, the clamping portion 31 moves in the travel hole 23.

[0027] In this embodiment, a connection head 34 for conveniently fixing the connecting rod is further provided at the outer end of the operating rod 3. A connection hole 341 for the connecting rod to pass horizontally is provided on the connection head 34, and both ends of the connecting rod are connected to the operating rods 3 on both sides through the connection hole 341.

[0028] In this embodiment, a support surface 13 for supporting the movable seat 2 and a first hinge seat 14 for hinging the movable seat 2 are provided on the top of the fixed seat 1. The first hinge seat 14 is located at the front end of the support surface 13. A pressing surface 24 for pressing against the support surface 13 and a second hinge seat 25 for hinging on the first hinge seat 14 are provided at the bottom of the movable seat 2. The second hinge seat 25 is located at the front end of the pressing surface 24. Both the support surface 13 and the pressing surface 24 are horizontally arranged, and when the tabletop is unfolded, it is supported by pressing the pressing surface 24 against the support surface 13.

[0029] What is described above in this specification is only an example of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the content of this specification of the present invention or exceed the scope defined by this claim book, they should all fall within the protection scope of the present invention.

Claims

1. A folding mechanism for a training table, characterized in that: The invention comprises a fixed seat (1) for fixing on the top of a table leg, a movable seat (2) for fixing on the bottom of a table top, an operating rod (3) for controlling the folding of the table top, and a reset spring (4) for driving the operating rod (3) to reset, wherein the movable seat (2) is hinged on the fixed seat (1), the operating rod (3) is movably mounted on the movable seat (2), the reset spring (4) drives the operating rod (3) to be clamped on the rear end of the fixed seat (1) to fix the movable seat (2), the clamping connection with the fixed seat (1) can be released by pulling the operating rod (3), and the movable seat (2) flips upward to drive the table top to fold; the folding mechanism is provided with two groups, and they are respectively mounted on the tops of the table legs on both sides and connected to the table top, and the two groups of folding mechanisms are connected to the operating rod (3) through a connecting rod to realize linkage.

2. The folding mechanism of a training table according to claim 1, characterized in that: The operating rod (3) is provided with a clamping portion (31) for clamping on the fixed seat (1), the fixed seat (1) is provided with a buckle (11) for cooperating with the clamping portion (31) for clamping, the buckle (11) is provided with a guide surface (12), and the clamping portion (31) is provided with a guide arc (32) in the direction corresponding to the guide surface (12). When the movable seat (2) is turned downward, the guide arc (32) is pressed against the guide surface (12), and the operating rod (3) is driven outward to bypass the buckle (11) in cooperation with the gravity of the table top, and then the reset spring (4) pulls the operating rod (3) to reset so that the clamping portion (31) is clamped on the buckle to complete the fixation.

3. The folding mechanism of a training table according to claim 2, characterized in that: The movable seat (2) is provided with an movable cavity (20) for installing the operating rod (3), the movable cavity (20) is opened upward, and the operating rod (3) is placed into the movable cavity (20) from the opening. The movable seat (2) is also provided with a cover plate (21) for covering the opening of the movable cavity (20), the cover plate (21) presses and fixes the operating rod (3), and the operating rod (3) is slidably matched with the movable cavity (20) and the cover plate (21).

4. The folding mechanism of a training table according to claim 3, characterized in that: The bottom of the movable cavity (20) is provided with a limiting groove (22) extending along the pulling direction of the operating rod (3), and the bottom of the operating rod (3) is provided with a limiting convex strip (33) slidingly fitted in the limiting groove (22).

5. The folding mechanism of a training table according to claim 3, characterized in that: The clamping portion (31) is located at the inner end of the operating rod (3), and the inner end of the movable chamber (20) is provided with a travel hole (23) for the clamping portion (31) to pass downward and cooperate with the buckle (11); the two ends of the return spring (4) are respectively hooked on the upper end of the clamping portion (31) and the studs tightened on the top of the movable seat (2), and when the operating rod (3) is pulled outward, the clamping portion (31) moves in the travel hole (23).

6. The folding mechanism of a training table according to claim 1, characterized in that: The outer end of the operating rod (3) is also provided with a connecting head (34) for facilitating the fixing of the connecting rod, and the connecting head (34) is provided with a connecting hole (341) for the connecting rod to pass horizontally, and the two ends of the connecting rod are connected to the operating rods (3) on both sides through the connecting holes (341).

7. The folding mechanism of a training table according to claim 1, characterized in that: The top of the fixed seat (1) is provided with a supporting surface (13) for supporting the movable seat (2) and a first hinge seat (14) for hingedly connecting the movable seat (2); the first hinge seat (14) is located at the front end of the supporting surface (13); the bottom of the movable seat (2) is provided with a pressing surface (24) for pressing against the supporting surface (13) and a second hinge seat (25) for hingedly connecting to the first hinge seat (14); the second hinge seat (25) is located at the front end of the pressing surface (24); the supporting surface (13) and the pressing surface (24) are both arranged horizontally; when the table top is unfolded, the pressing surface (24) presses against the supporting surface (13) to form support.

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