Plate body hinging structure and box-type folding bed applying same

By using a pinless plate hinge structure and plug-in design, the problems of complicated installation and easy detachment of folding beds are solved, realizing a box-type folding bed that is easy to install and firmly connected, and has a rigid plate structure to relieve fatigue.

CN223845314UActive Publication Date: 2026-01-30WEIFANG JINYONG AGRICULTURAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520780341.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-01-30
Estimated Expiration
2035-04-23

AI Technical Summary

Technical Problem

Existing folding beds lack storage functionality, have soft surfaces, and their existing hinged panel structures are cumbersome to install and prone to detachment.

Method used

It adopts a pinless plate hinge structure, and the connection is achieved through the design of plug and connector, mounting groove and through hole. Anti-tipping protrusions prevent it from falling off. The connecting plate is made of plastic to simplify the installation.

Benefits of technology

It achieves convenient installation and secure connection without pins, avoiding the problem of pins falling off, and the bed has a rigid plate structure to relieve fatigue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of plate body hinging structures, and particularly discloses a plate body hinging structure and a box type folding bed applying the same. The plate body hinge structure comprises two connecting plates, one connecting plate is provided with an inserting opening, the other connecting plate is provided with an inserting head, one of the inserting opening and the inserting head is provided with a mounting groove, the other one is provided with a connecting shaft head, and the opening end of the mounting groove faces the direction away from the connecting plate where the mounting groove is located. A notch is formed in the side, back on to the notch, of the second end of the mounting groove, a through hole is formed in the groove bottom of the mounting groove through the notch, and the connecting shaft head entering the mounting groove can be clamped in the through hole. The plate body hinging structure achieves hinge joint of the two connecting plates without a pin shaft, installation is convenient, falling can be prevented, connection is firm, and the problem that the pin shaft falls off is solved. The bed boards, the bed boards and the supporting boards and the supporting boards of the box-type folding bed can be connected without pin shafts, metal connecting pieces are not needed when the box-type folding bed is made of plastic materials, and firm connection can be guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to plate body hinging structure technical field, concretely relates to a plate body hinging structure and the box type folding bed of application this structure. BACKGROUND

[0002] The existing folding bed does not have the storage function, and the bed surface is usually soft, which is not conducive to relieving fatigue when resting on it. Therefore, we have developed a box type folding bed which has the dual functions of a luggage case and a folding bed. The folding bed can be folded into a case, and the case can store articles. When unfolded, the bed surface is a hard board structure, which is conducive to relieving fatigue.

[0003] The box type folding bed has multiple plate body hinging structures. The existing plate body hinging structures are usually connected by a pin shaft. During installation, the pin shaft needs to pass through the connecting parts on the two connecting plates. The installation of this plate body hinging structure is relatively complicated, and the pin shaft is prone to falling off. UTILITY MODEL CONTENTS

[0004] The utility model discloses a plate body hinging structure and the box type folding bed of application this structure, this plate body hinging structure does not use pin shaft connection, solve the existing plate body hinging structure installation complicated and pin shaft easy to fall off's problem.

[0005] To achieve the above object, the utility model discloses a plate body hinging structure, the plate body hinging structure includes two connecting plates, one of the two connecting plates has a plurality of insertion interfaces, and the other connecting plate has a plurality of insertion heads. The insertion head is inserted into the insertion interface. One of the insertion interface or the insertion head is provided with a mounting slot, and the other is provided with a connecting shaft head. The first end of the mounting slot is provided with an opening. The opening end of the mounting slot faces away from the connecting plate. The second end of the mounting slot is provided with a notch on the side away from the slot. A through hole is formed at the bottom of the mounting slot by the notch. When the insertion head is inserted into the insertion interface, the connecting shaft head can enter the mounting slot through the opening of the mounting slot. The connecting shaft head after entering the mounting slot can be clamped in the through hole. After the above structure is adopted, when the two connecting plates are connected, the insertion head only needs to be inserted into the insertion interface, the connecting shaft head enters the mounting slot from the opening, and finally clamps in the through hole. Not only is the installation convenient, but also the connection is firm, and the problem of pin shaft falling off after connection does not occur. If the two connecting plates are made of plastic parts, they can be processed by a mold, which is beneficial to demolding.

[0006] Further, the mounting slot is provided with an anti-falling block for preventing the connecting shaft head from falling out. After the above structure is adopted, the anti-falling block can further prevent the connecting shaft head from falling out.

[0007] The utility model discloses a box type folding bed, the box type folding bed includes the box shell, the first bed board of box shell installs can overturn, the free side of first bed board is hinged with second bed board, and first bed board is hinged with second bed board through above-mentioned board body hinge structure, and first bed board and second bed board constitute two connecting plates of board body hinge structure.

[0008] Further, the free side of the first bed board is provided with a plurality of first protrusions, and the side of the second bed board for connecting the first bed board is provided with a plurality of second protrusions, the gap between the first protrusions is the insertion port of the board body hinge structure, and the second protrusions are the insertion heads of the board body hinge structure.

[0009] Further, the back of the second bed board is hinged with a first support plate, and the first support plate is hinged with the second bed board through the above-mentioned board body hinge structure, and the first support plate and the second bed board constitute two connecting plates of the board body hinge structure.

[0010] Further, the back of the second bed board is hinged with a first support plate, and the first support plate is hinged with the second bed board through the above-mentioned board body hinge structure, and the first support plate and the second bed board constitute two connecting plates of the board body hinge structure.

[0011] Further, the back of the second bed board is hinged with a first support plate, and the first support plate is hinged with the second bed board through the above-mentioned board body hinge structure, and the first support plate and the second bed board constitute two connecting plates of the board body hinge structure.

[0012] Further, the back of the second bed board is hinged with a first support plate, and the first support plate is hinged with the second bed board through the above-mentioned board body hinge structure, and the first support plate and the second bed board constitute two connecting plates of the board body hinge structure.

[0013] Further, the back of the second bed plate is hinged with a second support plate, the second support plate is hinged with the second bed plate through the plate body hinge structure, and the second support plate and the second bed plate constitute two connecting plates of the plate body hinge structure. After the above structure is adopted, the second support plate and the second bed plate can be hinged together through a simple plug-in step, and installation is more convenient.

[0014] Further, the back of the second bed plate is hinged with a second support plate, the second support plate is hinged with the second bed plate through the plate body hinge structure, and the second support plate and the second bed plate constitute two connecting plates of the plate body hinge structure. After the above structure is adopted, the second support plate and the second bed plate can be hinged together through a simple plug-in step, and installation is more convenient.

[0015] In summary, the plate body hinge structure provided by the utility model realizes pin shaft-free hinging of two connecting plates, only needs to insert the plug-in head of one connecting plate into the plug-in port of the other connecting plate when installing, and can be clamped at the through hole after the connecting shaft head enters the installation slot, which is not only convenient to install, but also can prevent falling off, is more firm in connection, and will not have the problem of pin shaft falling off. After the box type folding bed adopts the plate body hinge structure, the bed plate and the bed plate, the bed plate and the support plate, and the support plate and the support plate are connected without pin shafts, metal connecting pieces are not needed when the connecting plate is made of plastic material, and firm connection can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of an embodiment of the box type folding bed in the utility model;

[0017] Figure 2 is Figure 1 is a schematic view of part of the structure in the embodiment shown;

[0018] Figure 3 is Figure 1 is a structural schematic view of the connection mode of the first bed plate and the second bed plate in the embodiment shown;

[0019] Figure 4 is Figure 3 is an enlarged view of the B part in the embodiment shown after being cut along the A-A line and rotated counterclockwise by 90°;

[0020] Figure 5 is Figure 4 is an enlarged view of the B part in the embodiment shown after being cut along the A-A line and rotated counterclockwise by 90°;

[0021] Figure 6 is Figure 4 is a schematic view of the embodiment shown after removing the second bed plate;

[0022] Figure 7 is Figure 6 is an enlarged view of C part in

[0023] Figure 8 is a structural schematic view of another connecting mode of the first bed plate and the second bed plate

[0024] Figure 9 is an enlarged view of D part in Figure 8

[0025] Figure 10 is a structural schematic view of the first bed plate in Figure 2

[0026] Figure 11 is a structural schematic view of the second bed plate in Figure 2

[0027] Figure 12 is a structural schematic view of the first support plate in Figure 2

[0028] Figure 13 is a structural schematic view of the auxiliary support plate in Figure 2

[0029] Figure 14 is a structural schematic view of the second support plate in Figure 2

[0030] In the figure: 1, connecting plate, 2, plug interface, 3, plug, 4, installation slot, 5, connecting shaft head, 6, opening, 7, slot, 8, notch, 9, through hole, 10, anti-falling convex block, 11, box shell, 12, first bed plate, 13, second bed plate, 14, first convex block, 15, second convex block, 16, first support plate, 17, first convex rib, 18, third convex block, 19, auxiliary support plate, 20, plate hole, 21, fourth convex block, 22, second support plate, 23, second convex rib, 24, sixth convex block, 26, fifth convex block. DETAILED DESCRIPTION

[0031] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0032] Referring to Figures 3 to 7 ​​​​​​In some embodiments of the utility model, the plate body hinged structure includes two connecting plates 1, one of the two connecting plates 1 is provided with a plurality of insertion interfaces 2, the other connecting plate 1 is provided with a plurality of insertion heads 3, the insertion head 3 is inserted into the insertion interface 2, one of the insertion interface 2 or the insertion head 3 is provided with a mounting groove 4, the other is provided with a connecting shaft head 5, the first end of the mounting groove 4 is provided with an opening 6, the opening 6 end of the mounting groove 4 faces away from the connecting plate 1, the second end of the mounting groove 4 is provided with a notch 8 on the side away from the slot opening 7, a through hole 9 is formed at the groove bottom of the mounting groove 4 by setting the notch 8, when the insertion head 3 is inserted into the insertion interface 2, the connecting shaft head 5 can enter the mounting groove 4 along the opening 6 of the mounting groove 4, and the connecting shaft head 5 after entering the mounting groove 4 can be clamped at the through hole 9. In order to facilitate understanding, the three-dimensional structure of the mounting groove 4 is also shown in Figure 10 , and the three-dimensional structure of the connecting shaft head 5 is shown in Figure 11 .

[0033] In order to prevent the connecting shaft head 5 from falling off, in some embodiments of the utility model, the length of the connecting shaft head 5 is set to be a distance beyond the groove bottom of the mounting groove 4 after the connecting shaft head 5 completely enters the mounting groove 4, so that the connecting shaft head 5 after entering the mounting groove 4 can be clamped at the through hole 9. When the two connecting plates 1 are connected, only the insertion head 3 needs to be inserted into the insertion interface 2, the connecting shaft head 5 enters the mounting groove 4 from the opening 6, and finally clamps at the through hole 9. Not only is the installation convenient, but also the connection is firm, and the problem of pin shaft falling off after connection does not occur. If the two connecting plates 1 are plastic parts, a mold can be used for processing, which is convenient for mold design and beneficial for demolding.

[0034] Referring to Figure 8 , Figure 9 , in some other embodiments of the utility model, in order to prevent the connecting shaft head 5 from falling off, the mounting groove 4 is provided with an anti-falling bump 10 for preventing the connecting shaft head 5 from falling off. After adopting the above structure, the anti-falling bump 10 can further prevent the connecting shaft head 5 from falling off.

[0035] Referring to Figure 1 , Figure 2 , in some embodiments of the utility model, the box type folding bed includes a box shell 11, the box shell 11 is provided with a first bed plate 12 which can be turned over, a second bed plate 13 is hinged at the free side of the first bed plate 12, the first bed plate 12 and the second bed plate 13 are hinged through the above-mentioned plate body hinged structure, and the first bed plate 12 and the second bed plate 13 constitute the two connecting plates 1 of the plate body hinged structure. After adopting the above structure, the first bed plate 12 and the second bed plate 13 can be hinged together through a simple insertion step, and the installation is more convenient.

[0036] Referring to Figure 10 , Figure 11In some embodiments of this utility model, a plurality of first protrusions 14 are provided at intervals on the free side of the first bed board 12, and a plurality of second protrusions 15 are provided on the side of the second bed board 13 for connecting the first bed board 12. The gap between the first protrusions 14 becomes the insertion interface 2 of the board body hinge structure, and the second protrusions 15 become the insertion joint 3 of the board body hinge structure. Figure 10 , Figure 11 The diagram illustrates the hinge-related structures in the first bed board 12 and the second bed board 13. For details of the hinge structure, please refer to [reference needed]. Figures 3 to 7 The first bed board 12 and the second bed board 13 form a connection structure between the insertion interface 2 and the insertion connector 3 by respectively setting the first protrusion 14 and the second protrusion 15. The structure is sturdy and easy to process.

[0037] Reference Figure 1 , Figure 2 In some embodiments of this utility model, a first support plate 16 is hinged to the back of the second bed board 13. The first support plate 16 and the second bed board 13 are hinged together through the aforementioned plate hinge structure. The first support plate 16 and the second bed board 13 constitute two connecting plates 1 of the plate hinge structure. The first support plate 16 is used to support the second bed board 13 when it is flattened. With the above structure, the first support plate 16 and the second bed board 13 can be hinged together through a simple insertion step, making installation relatively convenient.

[0038] Reference Figure 11 , Figure 12 In some embodiments of this utility model, a number of paired first ribs 17 are erected on the back of the second bed board 13, and the gap between the two first ribs 17 forming a plate hinge structure insertion interface 2 is formed. The first support plate 16 is used to connect the second bed board 13 and has a number of third protrusions 18 on its side. The third protrusions 18 form the plate hinge structure insertion interface 3. Figure 11 , Figure 12 The diagram illustrates the relevant structures in the first support plate 16 and the second bed board 13 used for their hinge connection. For the specific hinge structure, please refer to... Figures 3 to 7 The hinged structure shown is characterized by mounting groove 4 being located on the first rib 17 and connecting shaft head 5 being located on the third protrusion 18. With the above structure, the first support plate 16 and the second bed plate 13 form a connection structure of insertion interface 2 and insertion connector 3 by respectively setting the first rib 17 and the third protrusion 18, which is sturdy and easy to process.

[0039] Reference Figure 1 , Figure 2In some embodiments of the utility model, first support plate 16 is hinged with vice support plate 19, first support plate 16 is hinged with vice support plate 19 through the above-mentioned plate body hinge structure, and first support plate 16 and vice support plate 19 constitute two connecting plates 1 of plate body hinge structure. Vice support plate 19 is used to support second bed plate 13 together with first support plate 16 after unfolding, so that second bed plate 13 remains flat. After the above structure is used, first support plate 16 and vice support plate 19 can be hinged together through simple insertion steps, and installation is relatively convenient.

[0040] Referring to Figure 12 、 Figure 13 In some embodiments of the utility model, the middle part of first support plate 16 is provided with a plurality of plate holes 20, the back surface of first support plate 16 is provided with fourth protruding blocks 21 at the positions on both sides of plate hole 20, the gap between fourth protruding blocks 21 becomes insertion port 2 of plate body hinge structure, and the side edge of vice support plate 19 is provided with a plurality of fifth protruding blocks 26, and fifth protruding block 26 becomes insertion head 3 of plate body hinge structure. Figure 12 、 Figure 13 The relevant structure for the hinge connection between first support plate 16 and second bed plate 13 is shown, and the specific hinge structure can refer to the plate body hinge structure shown in Figures 3 to 7 , and the difference lies in that installation slot 4 is arranged on fifth protruding block 26, and connecting shaft head 5 is arranged on fourth protruding block 21. After the above structure is used, first support plate 16 and vice support plate 19 are connected through the connecting structure that fourth protruding block 21 and fifth protruding block 26 form insertion port 2 and insertion head 3, and the structure is firm and convenient to process.

[0041] Referring to Figure 1 、 Figure 2 In some embodiments of the utility model, the back surface of second bed plate 13 is hinged with second support plate 22, second support plate 22 is hinged with second bed plate 13 through the above-mentioned plate body hinge structure, and second support plate 22 and second bed plate 13 constitute two connecting plates 1 of plate body hinge structure. Second support plate 22 can be used to support second bed plate 13 when second bed plate 13 is in an unfolded state and the head of second bed plate 13 is raised. After the above structure is used, second support plate 22 and second bed plate 13 can be hinged together through simple insertion steps, and installation is relatively convenient.

[0042] Referring to Figure 11 、 Figure 14 In some embodiments of the utility model, the back surface of second bed plate 13 is vertically provided with a plurality of pairs of second protruding ribs 23, the gap between the two second protruding ribs 23 of a pair forms insertion port 2 of plate body hinge structure, and the side edge of second support plate 22 used for connecting second bed plate 13 is provided with a plurality of sixth protruding blocks 24, and sixth protruding block 24 becomes connecting head of plate body hinge structure. Figure 11、 Figure 14 The relevant structure for the articulation of the first support plate 16 and the second bed plate 13 is shown, and the specific articulation structure can be referred to the plate body articulation structure shown in the figure, in particular, the mounting groove 4 is arranged on the second protruding rib 23, and the connecting shaft head 5 is arranged on the sixth protruding block 24. Figures 3 to 7 After the above structure is adopted, the second support plate 22 and the second bed plate 13 are connected through the connecting structure of the plug-in head 3 and the plug-in port 2 formed by the sixth protruding block 24 and the second protruding rib 23, respectively, and the structure is firm and convenient to process.

[0043] The box shell 11, the first bed plate 12, the second bed plate 13, the first support plate 16, the auxiliary support plate 19 and the second support plate 22 in the box type folding bed are preferably made of plastic material, and the first bed plate 12 and the second bed plate 13, the second bed plate 13 and the first support plate 16, the first support plate 16 and the auxiliary support plate 19, and the second bed plate 13 and the second support plate 22 can be articulated through the plate body articulation structure provided by the utility model.

[0044] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0045] The terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0046] In the description of the application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0047] The above is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and substitutions can be made, and these improvements and substitutions should also be considered as the protection scope of the present application.

Claims

1. A plate hinge structure comprising two connecting plates (1), characterized in that, One of the two connecting plates (1) has a plurality of insertion ports (2), and the other connecting plate (1) has a plurality of insertion heads (3) inserted into the insertion ports (2), one of the insertion ports (2) or the insertion heads (3) is provided with a mounting groove (4), and the other is provided with a connecting shaft head (5), the first end of the mounting groove (4) is provided with an opening (6), the opening (6) of the mounting groove (4) faces away from the connecting plate (1), the second end of the mounting groove (4) is provided with a notch (8) on the side away from the slot (7), a through hole (9) is formed at the bottom of the mounting groove (4) through the notch (8), when the insertion head (3) is inserted into the insertion port (2), the connecting shaft head (5) can enter the mounting groove (4) through the opening (6) of the mounting groove (4), and the connecting shaft head (5) after entering the mounting groove (4) can be clamped in the through hole (9).

2. The hinge structure of claim 1, wherein The mounting groove (4) is provided with an anti-falling block (10) for preventing the connecting shaft head (5) from falling out.

3. A box folding bed comprising a box casing (11) on which a first bed board (12) is installed to be reversible, a second bed board (13) is hinged at a free side of the first bed board (12), characterized in that, The first bed plate (12) and the second bed plate (13) are hinged through the plate body hinge structure of claim 1 or 2, and the first bed plate (12) and the second bed plate (13) constitute two connecting plates (1) of the plate body hinge structure.

4. The box fold bed of claim 3, wherein, A plurality of first protrusions (14) are arranged at intervals on the free side edge of the first bed plate (12), and a plurality of second protrusions (15) are arranged on the side edge of the second bed plate (13) for connecting the first bed plate (12), the gap between the first protrusions (14) becomes the insertion port (2) of the plate body hinge structure, and the second protrusion (15) becomes the insertion head (3) of the plate body hinge structure.

5. The box fold bed of claim 3, wherein, The back of the second bed plate (13) is hinged with a first support plate (16), and the first support plate (16) and the second bed plate (13) are hinged through the plate body hinge structure of claim 1 or 2, and the first support plate (16) and the second bed plate (13) constitute two connecting plates (1) of the plate body hinge structure.

6. The box fold bed of claim 5, wherein, A plurality of pairs of first protrusions (17) are arranged on the back of the second bed plate (13), and the gap between the two first protrusions (17) of each pair forms the insertion port (2) of the plate body hinge structure, and a plurality of third protrusions (18) are arranged on the side edge of the first support plate (16) for connecting the second bed plate (13), and the third protrusion (18) becomes the insertion head (3) of the plate body hinge structure.

7. The box fold bed of claim 5, wherein, The first support plate (16) is hinged with a secondary support plate (19), and the first support plate (16) and the secondary support plate (19) are hinged through the plate body hinge structure of claim 1 or 2, and the first support plate (16) and the secondary support plate (19) constitute two connecting plates (1) of the plate body hinge structure.

8. The box fold bed of claim 7, wherein, The middle part of the first support plate (16) is provided with a plurality of plate holes (20), the back surface of the first support plate (16) is provided with fourth protrusions (21) on both sides of the plate holes (20), the gap between the fourth protrusions (21) is the insertion interface (2) of the plate body hinge structure, the side edge of the auxiliary support plate (19) is provided with a plurality of fifth protrusions (26), and the fifth protrusions (26) are the insertion head (3) of the plate body hinge structure.

9. The box fold bed of claim 7, wherein, The back surface of the second bed plate (13) is hingedly connected with a second support plate (22), the second support plate (22) and the second bed plate (13) are hingedly connected through the plate body hinge structure according to any one of claims 1 or 2, and the second support plate (22) and the second bed plate (13) constitute two connecting plates (1) of the plate body hinge structure.

10. The box fold bed of claim 9, wherein, The back surface of the second bed plate (13) is vertically provided with a plurality of pairs of second protrusions (23), the gap between the two second protrusions (23) of each pair forms the insertion interface (2) of the plate body hinge structure, the side edge of the second support plate (22) for connecting the second bed plate (13) is provided with a plurality of sixth protrusions (24), and the sixth protrusions (24) are the connecting head of the plate body hinge structure.