Hidden connecting structure
With its concealed connection structure, the screws and limiting nuts are located inside the connector, solving the problems of poor stability and lack of aesthetics in traditional connectors, and achieving higher connection stability and service life.
Patent Information
- Application Number
- CN202422177616.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-09-05
AI Technical Summary
Traditional connectors have poor connection stability, are prone to falling off, and lack aesthetics and lifespan, especially exposed bolts which are prone to corrosion.
The connector adopts a concealed connection structure, with the screws and limit nuts located inside the connector. The screws and limit nuts are connected by their cooperation, avoiding exposure.
It improves the aesthetics and stability of the connection, prevents screws and limit nuts from rusting, and extends service life.
Smart Images
Figure CN223524141U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to furniture assembly technical field, concretely relates to hidden type connecting structure. BACKGROUND
[0002] Furniture refers to the indispensable appliance facility category for human to maintain normal life, engage in production practice and carry out social activities, and furniture also develops and innovates along with the pace of times, and now, the categories are various, the materials are different, the varieties are complete, and the purposes are different, and the furniture is the important foundation for establishing work and life space, and simultaneously, some board furniture needs to use connecting pieces for stable positioning and fixing treatment during installation, the traditional connecting piece mostly adopts clamping connection during use, and the overall connection stability is poor, and meanwhile, the falling off condition occurs easily, and then the overall use effect is greatly reduced.
[0003] The prior art has the following disadvantages: the traditional connecting piece mostly adopts clamping connection during use, and the overall connection stability is poor, and meanwhile, the falling off condition occurs easily, and then the overall use effect is greatly reduced, and some use exposed bolt limiting treatment, and the overall connection appearance is reduced, and meanwhile, the exposed bolt rust condition occurs easily, and the overall service life of the connecting piece is reduced. UTILITY MODEL CONTENTS
[0004] In view of the technical problems that the traditional connecting piece is unstable or uses exposed bolt limiting, the utility model provides a hidden type connecting structure, and the screw and the limiting nut are located in the first connecting piece and the second connecting piece respectively, so that the overall connection appearance is improved.
[0005] The technical scheme adopted by the utility model is as follows: a hidden type connecting structure, which comprises a first connecting piece, a second connecting piece, a screw and a limiting nut, the first connecting piece is provided with a first through hole for the screw to pass through, the second connecting piece is internally provided with a cavity for accommodating the limiting nut, the first through hole is in communication with the cavity, one end of the screw is located in the first through hole, and the other end of the screw is connected with the limiting nut in a matched mode.
[0006] Optionally, the number of the screw is one or more, the limiting nut is provided with one or more screw holes, and the screw and the screw hole are arranged in a one-to-one correspondence.
[0007] Optionally, the number of the screw hole is multiple, and the multiple screw holes are arranged at intervals along the length direction of the limiting nut.
[0008] Optionally, the second connecting piece is provided with a second through hole, one end of the second through hole is in communication with the first through hole in a corresponding mode, and the other end of the second through hole is in communication with the screw hole.
[0009] Optionally, the second connecting piece is provided with an opening through which the limiting nut passes, the opening is communicated with the cavity, and the end face of the limiting nut is provided with a limiting groove.
[0010] Optionally, the first through hole comprises a first hole and a second hole communicated with the first hole, the screw comprises a screw cap and a nail part connected with the screw cap, the diameter of the second hole is smaller than the diameter of the first hole, the diameter of the screw cap is smaller than the diameter of the first hole and larger than the diameter of the second hole, and the diameter of the nail part is smaller than the diameter of the second hole.
[0011] Optionally, the screw hole penetrates the limiting nut, the second connecting piece is provided with a third through hole, and the first through hole, the second through hole, the screw hole and the third through hole are coaxially communicated in sequence.
[0012] Optionally, the cross section of the cavity is rectangular or circular, and the cross section of the limiting nut is rectangular or circular matched with the cavity.
[0013] The beneficial effects of the utility model are that: one end of the screw is located inside the second connecting piece, the other end of the screw enters the second connecting piece and is locked in cooperation with the limiting nut located inside the second connecting piece, thereby connecting the first connecting piece and the second connecting piece, since the screw and the limiting nut are located inside the first connecting piece and the second connecting piece respectively, the screw and the limiting nut are prevented from being exposed, the appearance of the whole connection is improved, meanwhile, the screw and the limiting nut are prevented from being corroded, and the overall service life of the screw and the limiting nut is improved.
[0014] The limiting nut can be placed into the cavity through the opening, since the cavity has a certain depth, the screw hole on the limiting nut cannot be correspondingly arranged with the second through hole when the user places the limiting nut, the user can adjust the limiting nut through a tool, so that the screw hole on the limiting nut is correspondingly arranged with the second through hole, and the screw passes through the second through hole and cooperates with the limiting nut. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 The structure diagram of the hidden connecting structure is provided for the utility model embodiment.
[0016] Fig. 2 The first through hole, the second through hole and the third through hole of the hidden connecting structure are provided for the utility model embodiment.
[0017] Fig. 3 The structure diagram of the limiting nut of the hidden connecting structure is provided for the utility model embodiment.
[0018] The marks in the drawings are: 1, first connecting piece; 11, first through hole; 111, first hole; 112, second hole; 2, second connecting piece; 21, cavity; 22, second through hole; 23, opening; 24, third through hole; 3, screw; 4, limiting nut; 41, screw hole; 42, limiting groove. DETAILED DESCRIPTION
[0019] The application will be further described in detail below with reference to the drawings and examples.
[0020] As Figs. 1 to 3 shown, the embodiment discloses a hidden connection structure, which comprises a first connecting piece 1, a second connecting piece 2, a screw 3 and a limiting nut 4. The first connecting piece 1 is provided with a first through hole 11 through which the screw 3 passes. The second connecting piece 2 is internally provided with a cavity 21 for accommodating the limiting nut 4. The first through hole 11 is in communication with the cavity 21. One end of the screw 3 is located inside the first through hole 11, and the other end of the screw 3 is connected with the limiting nut 4. One end of the screw 3 is located inside the second connecting piece 2, the other end of the screw 3 enters the second connecting piece 2, and cooperates with the limiting nut 4 located inside the second connecting piece 2 to be locked, thereby connecting the first connecting piece 1 and the second connecting piece 2. Since the screw 3 and the limiting nut 4 are located inside the first connecting piece 1 and the second connecting piece 2 respectively, they are not exposed to the outside, the overall connection is improved in appearance, and the screw 3 and the limiting nut 4 are prevented from rusting, thereby prolonging the overall service life of the screw 3 and the limiting nut 4. The cross section of the cavity 21 is rectangular or circular. The cross section of the cavity is rectangular or circular. The cross section of the limiting nut is rectangular or circular, which matches the cavity. The cavity 21 can be of other shapes, and the limiting nut 4 is of a shape matching the cavity 21.
[0021] As Fig. 1 shown, the number of the screw 3 is one or more. The limiting nut 4 is provided with one or more screw holes 41. The screw 3 is arranged in one-to-one correspondence with the screw hole 41. The number of the screw 3 is at least one. Multiple screws 3 can improve the connection strength between the first connecting piece 1 and the second connecting piece 2. In the embodiment, the number of the screw hole 41 is multiple. Multiple screw holes 41 are arranged along the length direction of the limiting nut 4.
[0022] As Fig. 2 shown, the second connecting piece 2 is provided with a second through hole 22. One end of the second through hole 22 is in communication with the first through hole 11, and the other end of the second through hole 22 is in communication with the screw hole 41. The screw 3 passes through the first through hole 11 and the second through hole 22 in sequence and cooperates with the limiting nut 4 to be locked.
[0023] As Fig. 3As shown, the second connecting piece 2 is provided with an opening 23 through which the limiting nut 4 passes, the opening 23 is communicated with the cavity 21, and the end face of the limiting nut 4 is provided with a limiting groove 42. The limiting nut 4 can be put into the cavity 21 through the opening 23. Since the cavity 21 has a certain depth, the user cannot guarantee that the screw hole 41 on the limiting nut 4 is correspondingly arranged with the second through hole 22 when placing the limiting nut 4. The user can adjust the limiting nut 4 through a tool to correspondingly arrange the screw hole 41 on the limiting nut 4 with the second through hole 22, so that the screw 3 passes through the second through hole 22 and cooperates with the limiting nut 4. The limiting groove 42 can be a straight groove, a cross groove or other shapes.
[0024] As shown in the drawings, Fig. 2 As shown, the first through hole 11 includes a first hole 111 and a second hole 112 communicated with the first hole 111, the screw 3 includes a nut and a nail part connected with the nut, the diameter of the second hole 112 is smaller than the diameter of the first hole 111, the diameter of the nut is smaller than the diameter of the first hole 111 and larger than the diameter of the second hole 112, and the diameter of the nail part is smaller than the diameter of the second hole 112. The nut is located inside the first hole 111, which prevents the nut from being exposed outside, improves the overall connection aesthetics, and avoids the rusting of the screw 3.
[0025] As shown in the drawings, Fig. 2 As shown, the screw hole 41 penetrates the limiting nut 4, the second connecting piece 2 is provided with a third through hole 24, and the first through hole 11, the second through hole 22, the screw hole 41 and the third through hole 24 are coaxially communicated in sequence. The screw 3 passes through the first through hole 11, the second through hole 22, the screw hole 41 and the third through hole 24 in sequence, the third through hole 24 prolongs the length of the screw 3 inside the second connecting piece 2, and further improves the stability of the connection between the first connecting piece 1 and the second connecting piece 2.
[0026] It can be understood that the above described specific embodiments are only used to explain the related utility model, and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for convenience of description. Multiple technical solutions in the same embodiment and multiple technical solutions of different embodiments can be arranged and combined to form new technical solutions without contradiction or conflict. Any equivalent structural transformation, direct or indirect application in other related technical fields, are also included in the protection scope of the utility model.
Claims
1. A concealed connection structure, characterized in that, The application relates to a connecting device, which comprises a first connecting piece, a second connecting piece, a screw and a limiting nut, the first connecting piece is provided with a first through hole for the screw to pass through, the second connecting piece is internally provided with a cavity for accommodating the limiting nut, the first through hole is communicated with the cavity, one end of the screw is located inside the first through hole, and the other end of the screw is connected with the limiting nut.
2. The hidden connection structure according to claim 1, wherein The number of the screw is one or more, the limiting nut is provided with one or more screw holes, and the screw is arranged in one-to-one correspondence with the screw hole.
3. The hidden connection structure according to claim 2, wherein The number of the screw hole is multiple, and the multiple screw holes are arranged at intervals along the length direction of the limiting nut.
4. The hidden connection structure according to claim 2, wherein The second connecting piece is provided with a second through hole, one end of the second through hole is communicated with the first through hole, and the other end of the second through hole is communicated with the screw hole.
5. The hidden connection structure according to claim 1, wherein The second connecting piece is provided with an opening for the limiting nut to pass through, the opening is communicated with the cavity, and the end surface of the limiting nut is provided with a limiting groove.
6. The hidden connection structure according to claim 1, wherein The first through hole comprises a first hole and a second hole communicated with the first hole, the screw comprises a screw cap and a nail part connected with the screw cap, the diameter of the second hole is smaller than that of the first hole, the diameter of the screw cap is smaller than that of the first hole and larger than that of the second hole, and the diameter of the nail part is smaller than that of the second hole.
7. The concealed connection structure according to claim 4, wherein The screw hole penetrates through the limiting nut, the second connecting piece is provided with a third through hole, and the first through hole, the second through hole, the screw hole and the third through hole are coaxially communicated in sequence.
8. The hidden connection structure according to claim 1, wherein The cross section of the cavity is rectangular or circular, and the cross section of the limiting nut is rectangular or circular matched with the cavity.