Connecting structure and folding deck chair
By using relatively pivotally connected connectors to threads of fixed blocks in the connecting structure of the folding chair, the problems of time-consuming assembly and high production costs caused by nuts in the prior art are solved, and the connection strength and use experience are improved.
Patent Information
- Application Number
- CN202421192709.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-29
AI Technical Summary
In the rotating connection structure of the existing folding chair, the existence of nuts leads to time-consuming assembly and high production costs, and the contact area between the screw and the aluminum profile is small, which can easily lead to deformation of the aluminum profile and affect the overall use experience.
A relatively pivotally connected connection structure is adopted, wherein the first connecting rod is a hollow structure, and a fixed block is arranged inside, and a threaded connection is made with the second connecting rod through a connecting member (including a light rod and a threaded rod), which eliminates the nut and increases contact. Area of stress.
It reduces production costs, improves assembly efficiency, reduces deformation of aluminum profiles, and improves overall connection strength.
Smart Images
Figure CN222285057U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of folding chairs, and in particular to a connection structure and a folding reclining chair. Background Art
[0002] Rotating and folding structures are very common in existing chairs. For example, the Chinese patent application number 202322857016.1 proposed by the applicant adopts a rotating connection method at the folding part, that is, the first rod and the second rod are hinged to achieve folding or relative angle adjustment.
[0003] For example, in order to reduce weight while maintaining overall strength, the main frame of a folding chair of this structure is often a hollow aluminum profile. At the rotating connection, a long screw is generally used to penetrate the first rod and the second rod and is locked by a nut. This method has the following disadvantages: first, the presence of the nut makes assembly more time-consuming and increases production costs; second, the contact force area between the screw and the hollow aluminum profile is small, which can easily cause the aluminum profile to deform and affect the overall user experience.
[0004] Based on this type of folding chair, how to reduce production costs, improve assembly efficiency, and improve overall connection strength are the main purposes of this application. Summary of the invention
[0005] The technical solution adopted by the present application to solve its technical problem is: a connection structure, including a first connecting rod and a second connecting rod that are relatively pivotally connected, characterized in that the first connecting rod and the second connecting rod are pivotally connected through a long-axis-shaped connecting member; the first connecting rod is a hollow structure, and a fixed block is arranged inside; the connecting member includes a section of a smooth rod, a section of a threaded rod and a head, wherein the threaded rod is arranged away from the head; the connecting member passes through the second connecting rod and is threadedly connected to the fixed block in the first connecting rod through the threaded rod, wherein the smooth rod passes through the second connecting rod, and the threaded rod does not pass through the first connecting rod. Preferably, the fixed block is a solid structure, and a threaded countersunk hole is reserved.
[0006] In some embodiments, a gasket is further disposed between the first connecting rod and the second connecting rod, and the gasket is penetrated by the smooth rod of the connecting member.
[0007] In some embodiments, there is a gap of 0.1-2 mm between the gasket and the first connecting rod or the second connecting rod.
[0008] In some embodiments, the second connecting rod is a solid structure.
[0009] In some embodiments, the threaded rod of the connecting member is connected to a side beyond the central axis of the fixing block.
[0010] In some embodiments, the head of the connector is provided with a hexagonal countersunk hole.
[0011] In some embodiments, a third connecting rod is further included, wherein the third connecting rod is fixed to the first connecting rod through the connecting piece, the connecting piece passes through the third connecting rod and is threadedly connected to the fixing block in the first connecting rod through a threaded rod, wherein the smooth rod passes through the third connecting rod, and the threaded rod does not pass through the first connecting rod.
[0012] In some embodiments, the connecting member on the first connecting rod and the connecting member on the third connecting member are on the same pivot axis.
[0013] In some embodiments, the pivot axes of the connecting member on the first connecting rod and the connecting member on the third connecting member remain parallel and have a spacing, wherein the threaded rods of the two connecting members are connected to one side beyond the central axis of the fixing block.
[0014] Another aspect of the present application provides a folding recliner, comprising a support frame, a front leg frame and a rear leg frame hinged at the front and rear of the support frame, a backrest frame hinged at the rear of the support frame, and a sunshade frame hinged at the upper part of the backrest frame, wherein the hinged connections of the folding recliner all adopt the connection structure described in any of the above embodiments.
[0015] The beneficial effects of the present application are: the structure of the nut is omitted, which firstly can reduce a part of the production cost, and secondly, during assembly, it is only necessary to keep the connector connected to the fixed block, eliminating the operation of fixing the nut and tightening, thereby improving the assembly efficiency. In addition, the connector cooperates with the fixed block, which can greatly increase the contact force area of the connector, and can reduce the deformation of the aluminum profile to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present application is further described below in conjunction with the accompanying drawings and embodiments.
[0017] Figure 1 It is a schematic diagram of the elevation structure of the connection structure of this application.
[0018] Figure 2 It is a schematic diagram of the front structure of the connection structure of the present application.
[0019] Figure 3 It is a schematic diagram of the internal structure of the connection structure of the present application.
[0020] Figure 4 It is a schematic diagram of the elevation structure of the second embodiment of the present application.
[0021] Figure 5 This is a schematic diagram of the internal structure of the second embodiment of the present application. Figure 1 .
[0022] Figure 6 This is a schematic diagram of the internal structure of the second embodiment of the present application. Figure 2 .
[0023] Figure 7 It is a structural schematic diagram of the folding recliner of the present application.
[0024] Reference numerals: A. connection structure;
[0025] 1. first connecting rod, 2. second connecting rod, 3. connecting piece, 31. plain rod, 32. threaded rod, 33. head, 4. fixing block, 5. gasket, 6. third connecting rod;
[0026] L1. Central axis, L2. Pivot axis, L3. First pivot axis, L4. Second pivot axis;
[0027] B. Folding deck chair, 7. Support frame, 8. Front foot frame, 9. Rear foot frame, 10. Backrest frame, 11. Sunshade frame. DETAILED DESCRIPTION
[0028] 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 part of the embodiments of the present application, rather than all of 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 achieve. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection of this application.
[0029] Reference Figure 1-6As shown, the present application proposes a connection structure, which includes a first connecting rod 1 and a second connecting rod 2 that are relatively pivotally connected. Specifically, the first connecting rod 1 and the second connecting rod 2 are pivotally connected through a long-axis-shaped connecting member 3; the first connecting rod 1 is a hollow structure, and a fixing block 4 is arranged inside; the connecting member 3 includes a section of a bare rod 31, a section of a threaded rod 32 and a head 33, wherein the threaded rod 32 is arranged away from the head 33; the connecting member 3 penetrates the second connecting rod 2 and is threadedly connected with the fixing block 4 in the first connecting rod 1 through the threaded rod 32, wherein the bare rod 31 penetrates the second connecting rod 2, and the threaded rod 32 does not penetrate the first connecting rod 1. Preferably, the fixing block 4 is a solid structure, and has an internal threaded countersunk hole inside it to facilitate the matching of the threaded rod 32. The fixing block 4 can be selected as a plastic structure and pressed inside the first connecting rod 1. The best way is that the fixing block 4 is fixed to the end of the first connecting rod 1 and is used as a plug on the other hand. The connecting member 3 can also be selected as a semi-thread stud commonly seen on the market.
[0030] Reference Figure 2 As shown, in some cases, a gasket 5 is further provided between the first connecting rod 1 and the second connecting rod 2, and the gasket 5 is penetrated by the bare rod 31 of the connecting member 3. The gasket 5 can be used as an intermediate transition fitting between the two, and the provision of the gasket 5 needs to keep the first connecting rod 1 and the second connecting rod 2 able to rotate freely.
[0031] Furthermore, there is a gap of 0.1-2 mm between the gasket 5 and the first connecting rod 1 or the second connecting rod 2. In this way, the connecting member 3 can be prevented from retreating and becoming loose.
[0032] Optionally, the second connecting rod 2 is a solid structure to improve the connection strength.
[0033] Reference Figure 3 Preferably, the threaded rod 32 of the connecting member 3 is connected to a side beyond the central axis L1 of the fixing block 4. Therefore, the connection reliability can be improved.
[0034] In order to facilitate assembly, the head 33 of the connecting member 3 is provided with a hexagonal countersunk hole, so that it can be easily and quickly arranged by a hexagonal wrench or an electric screwdriver.
[0035] Reference Figure 4-6 As shown, in some other embodiments, a third connecting rod 6 is further included, and the third connecting rod 6 is fixed to the first connecting rod 1 through the connecting member 3, and the connecting member 3 passes through the third connecting rod 6 and is threadedly connected to the fixed block 4 in the first connecting rod 1 through the threaded rod 32, wherein the smooth rod 31 passes through the third connecting rod 6, and the threaded rod 32 does not pass through the first connecting rod 1.
[0036] As an optional connection method, refer to Figure 5 As shown, the connecting member 3 on the first connecting rod 1 and the connecting member 3 on the third connecting member 3 are located at the same pivot axis L2.
[0037] As an alternative connection method, refer to Figure 6 As shown, the first pivot axis L3 and the second pivot axis L4 of the connecting member 3 on the first connecting rod 1 and the connecting member 3 on the third connecting member 3 remain parallel and have a distance therebetween, wherein the threaded rods 32 of the two connecting members 3 are both connected to one side beyond the central axis L1 of the fixing block 4.
[0038] In addition, refer to Figure 7 As shown, the present application also provides a folding recliner B, comprising a support frame 7, a front leg frame 8 and a rear leg frame 9 hinged at the front and rear of the support frame 7, a backrest frame 10 hinged at the rear of the support frame 7, and a sunshade frame 11 hinged at the upper part of the backrest frame 10. Specifically, the hinged connections of the folding recliner B all adopt the connection structure A described in any of the above embodiments.
[0039] So far, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.
[0040] 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 solution of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to 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 embodiments of the present application.
Claims
1. A connection structure, comprising a first connecting rod and a second connecting rod pivotally connected relative to each other, characterized in that: The first connecting rod and the second connecting rod are pivotally connected by a long axis-shaped connecting member; the first connecting rod is a hollow structure with a fixed block arranged inside; the connecting member includes a section of a smooth rod, a section of a threaded rod and a head, wherein the threaded rod is arranged away from the head; the connecting member passes through the second connecting rod and is threadedly connected to the fixed block in the first connecting rod through the threaded rod, wherein the smooth rod passes through the second connecting rod, and the threaded rod does not pass through the first connecting rod.
2. A connection structure according to claim 1, characterized in that: A gasket is further provided between the first connecting rod and the second connecting rod, and the gasket is penetrated by the smooth rod of the connecting member.
3. A connection structure according to claim 2, characterized in that: There is a gap of 0.1-2 mm between the gasket and the first connecting rod or the second connecting rod.
4. A connection structure according to claim 1, characterized in that: The second connecting rod is a solid structure.
5. A connection structure according to claim 1, characterized in that: The threaded rod of the connecting member is connected to one side beyond the central axis of the fixing block.
6. A connection structure according to claim 1, characterized in that: The head of the connecting piece is provided with a hexagonal countersunk hole.
7. A connection structure according to claim 1, characterized in that: It also includes a third connecting rod, which is fixed to the first connecting rod through the connecting piece, and the connecting piece passes through the third connecting rod and is threadedly connected to the fixing block in the first connecting rod through a threaded rod, wherein the smooth rod passes through the third connecting rod, and the threaded rod does not pass through the first connecting rod.
8. A connection structure according to claim 7, characterized in that: The connecting member on the first connecting rod and the connecting member on the third connecting member are located at the same pivot axis.
9. A connection structure according to claim 7, characterized in that: The pivot axes of the connecting member on the first connecting rod and the connecting member on the third connecting member are kept parallel and spaced apart, wherein the threaded rods of the two connecting members are connected to one side beyond the central axis of the fixing block.
10. A folding recliner, comprising a support frame, a front leg frame and a rear leg frame hinged at the front and rear of the support frame, a backrest frame hinged at the rear of the support frame, and a sunshade frame hinged at the upper part of the backrest frame, characterized in that: The hinged joints of the folding recliner all adopt the connection structure described in any one of claims 1-9.