Locking structure of folding table

Abstract

The utility model discloses a locking structure of a folding table, which comprises a first table plate and a second table plate, and the first table plate and the second table plate are respectively provided with a first connecting part and a second connecting part; the first connecting part and the second connecting part are jointly hinged to a middle connecting part and can be unfolded or folded. A first hook part and a second hook part are respectively arranged on the first connecting part and the second connecting part; a first lock hole and a second lock hole are formed in the middle connecting part, a rotary lock block capable of rotating relative to the middle connecting part is further installed, the rotary lock block comprises a notch and a blocking part, and the notch can be kept coincident with or staggered from the first lock hole and the second lock hole; the first hook part and the second hook part can enter the first lock hole and the second lock hole respectively after the first connecting part and the second connecting part rotate, and the blocking part is arranged below the first hook part and the second hook part after the rotary locking block rotates, so that locking is completed.

Description

Technical Field

[0001] The present application relates to the technical field of outdoor products, and in particular to a locking structure of a folding table. Background Art

[0002] Modern people are more and more fond of outdoor activities, and many people are slowly beginning to like outdoor camping life. With the upgrading of people's camping equipment, most veteran players like to use high-quality outdoor folding tables. Its main function is easy folding, small storage volume and easy to carry. However, some folding tables lack a device for locking the table frame or table top. The table frame and table top may be out of the unfolded state due to a large force. Therefore, a stable locking structure is needed.

[0003] Based on this, a connection structure for a folding table, such as that proposed in publication number CN107518580B, uses a control component between a first hinge seat and a second hinge seat to control the movement or locking of the two, thereby controlling the rotation or locking of the table. The present application aims to propose another embodiment that also achieves the above structural effect. Summary of the Invention

[0004] Based on this, the present application provides a locking structure for a folding table.

[0005] The technical solution adopted by the present application to solve its technical problem is: a locking structure of a folding table, comprising: a first table board and a second table board, wherein a first connecting portion and a second connecting portion are respectively provided on the first table board and the second table board; the first connecting portion and the second connecting portion are hinged together on an intermediate connecting portion, and the two can be unfolded or folded; a first hook portion and a second hook portion are respectively provided on the first connecting portion and the second connecting portion; a first locking hole and a second locking hole are provided on the intermediate connecting portion, and a rotating locking block that can rotate relative to the intermediate connecting portion is also installed, and the rotating locking block includes a notch and a blocking portion, and the notch can keep overlapping or misaligned with the first locking hole and the second locking hole; the first hook portion and the second hook can enter the first locking hole and the second locking hole respectively after the first connecting portion and the second connecting portion are rotated, and the blocking portion is placed under the first hook portion and the second hook after the rotating locking block is rotated. At this time, the first hook portion and the second hook will not be able to detach from the intermediate connecting portion, so that the first table board and the second table board remain locked in the unfolded state.

[0006] In some embodiments, a fixed column is fixedly installed at the center position of the intermediate connecting part, and the rotating locking block is sleeve-shaped, which is sleeved on the fixed column and rotates relative to the fixed column; the fixed column includes a limiting step for limiting the blocking part of the rotating locking block, which is used to limit the rotating locking block from escaping along its axial direction.

[0007] In some embodiments, the fixing column is provided with a receiving groove that cooperates with the first locking hole, the second locking hole, and the slot hole.

[0008] In some embodiments, a limiting block is installed on the blocking portion, and a sliding groove that cooperates with the limiting block is opened on the fixing column.

[0009] In some embodiments, the fixing column is provided with locking and unlocking indicator marks, and the rotating locking block is provided with arrow marks corresponding to the indicator marks.

[0010] In some embodiments, the intermediate connecting portion is plate-shaped with axial holes installed at both ends, and the first connecting portion and the second connecting portion are hinged to the intermediate connecting portion via a pivot passing through the axial holes.

[0011] In some embodiments, the first connecting portion and the second connecting portion are respectively provided with a first connecting lug, a second connecting lug, a first top surface, a second top surface, a first abutting surface, and a second abutting surface; the first hook portion and the second hook portion are respectively provided on the first top surface and the second top surface and are respectively placed between the first connecting lug and the second connecting lug; when the first table top and the second table top are in the unfolded state, the first abutting surface and the second abutting surface remain in abutment.

[0012] In some embodiments, the first connecting lug includes a first abutting side wall that is in the same plane as the first abutting surface, and the second connecting lug includes a second abutting side wall that is in the same plane as the second abutting surface; when the first table top and the second table top are in the expanded state, the first abutting side wall remains in abutment with the second abutting side wall.

[0013] In some embodiments, the first connecting portion and the second connecting portion further include an inserting portion, and the first table top and the second table top are hollow profile structures, which are respectively inserted into the inserting portion and fixed by fasteners.

[0014] In some embodiments, the first table top and the first connecting portion are an integral structure, and the second table top and the second connecting portion are an integral structure.

[0015] The beneficial effect of the present application is that when it is necessary to lock the first table board and the second table board in the unfolded state, simply rotate the rotary lock block to make the first hook and the second hook engage on the blocking part, ensuring a relatively strong locking force. The overall structure is simple, and the locking state can be released or entered by simply turning the knob. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the locking structure of the present application in the locked state.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the locking structure of the present application in the folded state.

[0019] Figure 3 yes Figure 2 Schematic diagram of the three-dimensional structure in another direction.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixed column of this application.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotary lock block of the present application.

[0022] Figure 6 It is a schematic diagram of the explosion structure of the locking structure of this application.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of this application.

[0024] Explanation of the accompanying numbers: 1. First table board; 2. Second table board; 3. First connecting part; 31. First hook; 32. First connecting lug; 33. First top surface; 34. First abutting surface; 35. First abutting side wall; 4. Second connecting part; 41. Second hook; 42. Second connecting lug; 43. Second top surface; 44. Second abutting surface; 45. Second abutting side wall; 5. Middle connecting part; 51. Axis hole; 52. First locking hole; 53. Second locking hole; 6. Rotating locking block; 61. Notch; 62. Blocking part; 63. Limiting block; 64. Arrow mark; 7. Fixed column; 71. Limiting step; 72. Receiving groove; 73. Slide groove; 74. Indicator mark; 8. Connecting part. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection of this application.

[0026] In the examples of this application, please refer to Figure 1-7 As shown, the present application provides a locking structure for a folding table, which mainly includes: a first table board 1 and a second table board 2, wherein a first connecting portion 3 and a second connecting portion 4 are respectively provided on the first table board 1 and the second table board 2; the first connecting portion 3 and the second connecting portion 4 are hinged together on an intermediate connecting portion 5, and the two can be unfolded or folded; the first connecting portion 3 and the second connecting portion 4 are respectively provided with a first hook portion 31 and a second hook portion 41; the intermediate connecting portion 5 is provided with a first locking hole 52 and a second locking hole 53, and is also provided with a rotating lock block that can rotate relative to the intermediate connecting portion 5. 6. The rotating lock block 6 includes a notch 61 and a blocking portion 62. The notch 61 can remain overlapped or misaligned with the first lock hole 52 and the second lock hole 53; the first hook 31 and the second hook 41 can enter the first lock hole 52 and the second lock hole 53 respectively after the first connection part 3 and the second connection part 4 are rotated. After the rotating lock block 6 is rotated, the blocking portion 62 is placed under the first hook 31 and the second hook 41. At this time, the first hook 31 and the second hook 41 will not be able to be separated from the middle connection part 5, so that the first table board 1 and the second table board 2 remain locked in the unfolded state.

[0027] Specifically, when the rotary locking block 6 is rotated to keep the slot 61 and the first locking hole 52 and the second locking hole 53 coincide with each other, the first connecting part 3 and the second connecting part 4 and the intermediate connecting part 5 can rotate freely relative to each other, and the first hook 31 and the second hook 41 can enter the slot 61. After the first hook 31 and the second hook 41 enter the slot 61 through the first locking hole 52 and the second locking hole 53, the first table board 1 and the second table board 2 are located in the same plane. Through the rotation of the rotary locking block 6, the channel below the hook is blocked by the blocking part 62, and the first hook 31 and the second hook 41 cannot continue to rotate, so that the first connecting part 3 and the second connecting part 4 enter the locked state.

[0028] Some preferred / improved embodiments based on the above embodiments will be described below. Any one of the following embodiments may be selected, or multiple embodiments may be selected and combined.

[0029] Reference Figure 3 As shown, a fixed column 7 is fixedly installed at the center position of the intermediate connecting part 5, and the rotating locking block 6 is sleeve-shaped, which is sleeved on the fixed column 7 and rotates relative to the fixed column 7; the fixed column 7 includes a limiting step 71 for limiting the blocking portion 62 of the rotating locking block 6, which is used to limit the rotating locking block 6 from escaping along its axial direction. This arrangement provides a fulcrum for the rotation of the rotating locking block 6 and prevents the rotating locking block 6 from falling off on the intermediate connecting part 5.

[0030] Furthermore, during installation, the rotating locking block 6 is first installed in the mounting hole of the intermediate connecting part 5, and then the fixing column 7 is placed in the central area of ​​the rotating locking block 6 and combined with the intermediate connecting part 5 through screws. In this way, the rotating locking block 6 can only keep rotating and cannot move along its own axial direction.

[0031] Specifically, in order to provide an accommodation space for the first hook 31 and the second hook 41 after passing through the notch 61 in the locked state, the fixing column 7 is provided with an accommodation groove 72 that cooperates with the first locking hole 52, the second locking hole 53 and the slot hole.

[0032] Reference Figure 5 As shown, in order to limit the sliding of the rotating lock block 6 and prevent the difficulty in aligning the slot 61 with the first lock hole 52 and the second lock hole 53 due to the free rotation of the rotating lock block 6, a limit block 63 is installed on the blocking portion 62, and a sliding groove 73 is provided on the fixing column 7 to cooperate with the limit block 63.

[0033] Specifically, the maximum sliding range of the limit block 63 in the sliding groove 73 depends on the distance from the complete overlap of the slot 61 and the first and second locking holes 52 and 53 to the complete misalignment between the slot 61 and the first and second locking holes 52 and 53 .

[0034] Preferably, in order to make the locking of the rotating lock block 6 more intuitive, a locking and unlocking indicator mark 74 is provided on the fixing column 7, and an arrow mark 64 corresponding to the indicator mark 74 is provided on the rotating lock block 6.

[0035] Reference Figure 6 As shown, in order to make the overall structure more compact, the intermediate connecting part 5 is plate-shaped with shaft holes 51 installed at both ends. The first connecting part 3 and the second connecting part 4 are hinged to the intermediate connecting part 5 by a pivot passing through the shaft hole 51.

[0036] Reference Figure 6As shown, the first connecting portion 3 and the second connecting portion 4 are respectively provided with a first connecting lug 32, a second connecting lug 42, a first top surface 33, a second top surface 43, a first abutting surface 34, and a second abutting surface 44; the first hook 31 and the second hook 41 are respectively provided on the first top surface 33 and the second top surface 43 and are respectively placed between the first connecting lug 32 and the second connecting lug 42; when the first table board 1 and the second table board 2 are in the unfolded state, the first abutting surface 34 and the second abutting surface 44 remain in abutment. This arrangement is conducive to more accurately leveling the first table board 1 and the second table board 2. The first abutting surface 34 and the second abutting surface 44 abut each other, so that the first table board 1 and the second table board 2 are located in the same plane.

[0037] Specifically, the first connecting lug 32 includes a first abutting side wall 35 that is in the same plane as the first abutting surface 34, and the second connecting lug 42 includes a second abutting side wall 45 that is in the same plane as the second abutting surface 44; when the first table top 1 and the second table top 2 are in the unfolded state, the first abutting side wall and the second abutting side wall remain in abutment, and the first abutting side wall 35 and the second abutting side wall 45 can expand the contact area between the first abutting surface 34 and the second abutting surface 44.

[0038] As an embodiment, the first connecting part 3 and the second connecting part 4 also include a plug-in part 8, and the first table board 1 and the second table board 2 are hollow profile structures, which are respectively plugged into the plug-in part 8 and fixed by fasteners. This arrangement allows the first connecting part 3 and the second connecting part 4 to be freely disassembled from the table board, making maintenance convenient.

[0039] As another embodiment, the first table board 1 and the first connecting part 3 are an integral structure, and the second table board 2 and the second connecting part 4 are an integral structure. This arrangement can save the installation process of the first table board 1 and the second table board 2 and the first connecting part 3 and the second connecting part 4, reducing the installation process.

[0040] Thus far, various embodiments of the present application have been described in detail. To avoid obscuring the concept of the present application, some details well known in the art have not been described. Based on the above description, those skilled in the art will fully understand how to implement the technical solutions disclosed herein.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present application, and the aforementioned embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not drive the essence of the corresponding technical solutions away from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A locking structure for a folding table, comprising a first tabletop and a second tabletop, each provided with a first connecting portion and a second connecting portion, respectively; the first connecting portion and the second connecting portion being hingedly connected to an intermediate connecting portion, and the first connecting portion and the second connecting portion being capable of being unfolded or folded; It is characterized by: The first connecting portion and the second connecting portion are respectively provided with a first hook portion and a second hook portion; The intermediate connecting portion is provided with a first locking hole and a second locking hole, and is further provided with a rotating locking block capable of rotating relative to the intermediate connecting portion, the rotating locking block comprising a notch and a blocking portion, the notch being capable of being kept in overlap or misalignment with the first locking hole and the second locking hole; The first hook and the second hook can enter the first lock hole and the second lock hole respectively after the first connecting part and the second connecting part are rotated. After the rotating lock block is rotated, the blocking part is placed under the first hook and the second hook. At this time, the first hook and the second hook will not be able to be detached from the middle connecting part, so that the first table board and the second table board remain locked in the unfolded state.

2. The locking structure of the folding table according to claim 1, characterized in that: A fixed column is fixedly installed at the center position of the intermediate connecting part, and the rotating locking block is sleeve-shaped, which is sleeved on the fixed column and rotates relative to the fixed column; the fixed column includes a limiting step for limiting the blocking part of the rotating locking block, which is used to limit the rotating locking block from escaping along its axial direction.

3. The locking structure of the folding table according to claim 2, characterized in that: The fixing column is provided with an accommodating groove which cooperates with the first locking hole, the second locking hole and the slot hole.

4. The locking structure of the folding table according to claim 2, characterized in that: A limiting block is installed on the blocking portion, and a sliding groove matched with the limiting block is opened on the fixing column.

5. The locking structure of the folding table according to claim 2, characterized in that: The fixing column is provided with locking and unlocking indicator marks, and the rotating lock block is provided with arrow marks corresponding to the indicator marks.

6. The locking structure of the folding table according to claim 1, characterized in that: The middle connecting part is in a plate shape, with shaft holes installed at both ends. The first connecting part and the second connecting part are hinged to the middle connecting part via a pivot passing through the shaft holes.

7. The locking structure of the folding table according to claim 1, characterized in that: The first connecting portion and the second connecting portion are respectively provided with a first connecting lug, a second connecting lug, a first top surface, a second top surface, a first abutting surface, and a second abutting surface; the first hook portion and the second hook portion are respectively provided on the first top surface and the second top surface and are respectively placed between the first connecting lug and the second connecting lug; when the first table top and the second table top are in the unfolded state, the first abutting surface and the second abutting surface remain in abutment.

8. The locking structure of the folding table according to claim 7, characterized in that: The first connecting lug includes a first abutting side wall that is in the same plane as the first abutting surface, and the second connecting lug includes a second abutting side wall that is in the same plane as the second abutting surface; when the first table top and the second table top are in the unfolded state, the first abutting side wall remains in abutment with the second abutting side wall.

9. The locking structure of the folding table according to claim 1, characterized in that: The first connecting portion and the second connecting portion further include an inserting portion. The first table top and the second table top are hollow profile structures, which are respectively inserted into the inserting portions and fixed by fasteners.

10. The locking structure of the folding table according to claim 1, characterized in that: The first table top and the first connecting portion are an integral structure, and the second table top and the second connecting portion are an integral structure.

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