Connecting piece for chair back splicing and chair
By designing the connectors for chair back splicing, the problems of trouble disassembly and assembly of chairs in the prior art, the inability to hide and position screws are solved, and the effects of fast and accurate connection, hiding screws and reducing transportation costs are achieved.
Patent Information
- Application Number
- CN202421940853.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-08-09
AI Technical Summary
In the prior art, when installing the back panel of the chair, it is troublesome to disassemble and assemble, the screws cannot be hidden, and processing errors lead to difficulty in positioning and difficulty in fixing and connecting.
Design a connector for back splicing, including a fixing part and a connection part, to achieve fast and accurate positioning through countersunk holes and locking screws, and to hide the screws through blind holes and gaskets to enhance aesthetics.
It realizes a quick and accurate connection between the back panel and the back frame, which is convenient for disassembly and assemble, hides screws, improves the aesthetics of the chair, saves transportation space and reduces transportation costs.
Smart Images
Figure CN222804091U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of furniture products, in particular to a connector for chair back splicing and a chair. Background Art
[0002] A chair includes a seat, a back and supporting legs. Its overall shape is irregular and takes up a large space. During transportation, in order to save space, reduce transportation costs, and avoid damage to the chair due to bumps and collisions, the chair is usually disassembled for transportation to save transportation costs.
[0003] Most chairs in the prior art usually directly open a through hole on the chair back frame when installing the chair back, and open a threaded hole on the chair back plate, and use screws to penetrate the through hole and the threaded hole to fix the chair back plate to the chair back frame. This method is not only troublesome to disassemble and assemble, but also unable to hide the screws. In addition, if deviation occurs when processing the threaded hole and the through hole, it is difficult to position the installation screws during installation, which makes it difficult to fix the chair back plate and the chair back frame. Utility Model Content
[0004] In order to solve the technical defects raised in the above-mentioned background technology, the purpose of the utility model is to provide a connector and a chair for splicing chair backs, which can quickly and accurately position and facilitate the disassembly and assembly of the chair back panel, while also being able to perfectly hide the screws to enhance the aesthetics of the chair.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A connector for chair back splicing, comprising a fixing portion and a connecting portion, wherein the fixing portion is connected to one end of the connecting portion to form an angle, and the fixing portion and the connecting portion are an integrally formed structure, wherein a countersunk hole is respectively provided on the fixing portion and the connecting portion, and a locking screw is fixedly connected in the countersunk hole; the fixing portion is fixedly connected to a chair back frame by means of a locking screw, and the connecting portion is fixedly connected to a chair back plate by means of a locking screw; a blind hole is also provided on one side of the mounting hole on the fixing portion, and the blind hole is used to adjust the position of the fixing portion connected to the chair back frame.
[0007] Preferably, the angle between the fixing portion and the connecting portion is 15°-45°.
[0008] Preferably, the length of the connecting portion is half of the length of the fixing portion, and both sides of the connecting portion are bent inward to form side wing reinforcement ribs, and the side wing reinforcement ribs abut against the fixing portion to form a semi-closed structure.
[0009] Preferably, the countersunk hole on the fixing portion and the countersunk hole on the connecting portion are located on the same axis, wherein the countersunk hole on the fixing portion is used to facilitate the insertion of the locking screw; and the countersunk hole on the connecting portion is used to accommodate the head of the locking screw.
[0010] Preferably, the diameter of the countersunk hole is larger than the head diameter of the locking screw.
[0011] Preferably, the blind hole is composed of two circular holes with different diameters, wherein the circular hole with a larger diameter is used to accommodate the head of the locking screw, and the circular hole with a smaller diameter is used to clamp the head of the locking screw.
[0012] Preferably, a gasket is sleeved on the outer side of the locking screw on the blind hole.
[0013] A chair comprises chair legs, a chair back frame, a chair back plate and a seat cushion, wherein the chair legs are fixedly connected to the bottom end of the chair back frame, the seat cushion is installed above the chair legs, and the chair back plate is connected to one side of the chair back frame by a connecting piece.
[0014] In summary, the beneficial effects of the utility model are:
[0015] The utility model can quickly complete the connection between the chair back plate and the chair back frame by means of the countersunk holes on both sides of the connecting piece, and at the same time the connecting piece can perfectly hide the screws to avoid them being exposed to the outside and affecting the overall aesthetics of the chair; in addition, the chair back plate and the chair back frame can be quickly disassembled and assembled through the connecting piece, thereby saving space and reducing transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the connecting piece of the utility model;
[0017] Figure 2 It is a top view of the connector of the utility model;
[0018] Figure 3 It is a cross-sectional view of the connector of the utility model;
[0019] Figure 4 The utility model is a structural schematic diagram of a connecting piece installed on a chair.
[0020] Description of reference numerals in the figures:
[0021] 1. Fixing part; 11. Countersunk hole; 12. Blind hole; 2. Connecting part; 21. Side wing reinforcement rib; 3. Locking screw; 31. Gasket; 4. Chair back frame; 5. Chair back plate; 6. Chair leg; 7. Seat cushion. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.
[0023] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.
[0024] In the description of the utility model, if there is a word description such as "several", it means one or more, and the meaning of "more" is two or more. Greater than, less than, and more than are understood to exclude the number itself, and above, below, and within are understood to include the number itself. If there is a description of the first, second, and third, it is only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0025] The following is combined with Figure 1-4 , an embodiment of a connector for splicing a chair back and a chair of the utility model are further described in detail.
[0026] Embodiment 1
[0027] A connector for chair back splicing, such as Figures 1 to 4 As shown, it includes a fixing portion 1 and a connecting portion 2, one end of the fixing portion 1 and the connecting portion 2 are connected to form an angle, and the fixing portion 1 and the connecting portion 2 are an integrally formed structure, and a countersunk hole 11 is respectively provided on the fixing portion 1 and the connecting portion 2, and a locking screw 3 is fixedly connected in the countersunk hole 11; the fixing portion 1 is fixedly connected to the seat back frame 4 by the locking screw 3, and the connecting portion 2 is fixedly connected to the seat back plate 5 by the locking screw 3; a blind hole 12 is also provided on one side of the mounting hole on the fixing portion 1, and the blind hole 12 is used to adjust the position of the fixing portion 1 connected to the seat back frame 4.
[0028] Specifically, the countersunk holes 11 respectively opened on the fixing part 1 and the connecting part 2 are not only used for fixing screws, but also can enhance the aesthetics and stability of the chair back mounting structure; and the countersunk holes 11 opened on the fixing part 1 can quickly fix the locking screws 3, while the blind holes 12 located on the fixing part 1 improve the installation efficiency of the chair back panel 5, which not only enables quick disassembly and assembly, but also enables precise positioning; at the same time, the one-piece molding structure is utilized to enhance the strength of the connecting parts; not only the connection stability between the chair back and the bracket is enhanced, but also the aesthetic appearance of the chair is enhanced through the hidden design, and it is suitable for the manufacture of various types of chairs.
[0029] It is worth mentioning that in order to improve the comfort of the chair back, a soft layer can be set on the outside of the chair back plate 5, and a cushioning material can be filled between the soft layer and the chair back plate 5, wherein the cushioning material can be cotton, sponge or latex.
[0030] In this embodiment, the angle between the fixing portion 1 and the connecting portion 2 is 15°-45° to meet the connection requirements of different chair back frames 4 structures.
[0031] Specifically, the angle between the connecting piece consisting of the fixing part 1 and the connecting part 2 is designed to be 15° to 45° to form a V-shaped structure, which can adapt to chair back structures of different shapes and sizes. The connecting piece of the utility model is mainly used for splicing between the chair back and the chair frame, and its unique V-shaped design provides good support and stability.
[0032] In this embodiment, if Figure 2 , 3 As shown, the length of the connecting portion 2 is half of the length of the fixing portion 1 , and both sides of the connecting portion 2 are bent inward to form side wing reinforcement ribs 21 , and the side wing reinforcement ribs 21 abut against the fixing portion 1 to form a semi-closed structure.
[0033] Specifically, in order to facilitate the placement and tightening of the locking screw 3 on the countersunk hole 11, the length of the connecting part 2 is set to be smaller than the length of the fixing part 1, so that the head of the locking screw 3 can be embedded in the countersunk hole 11 to avoid protruding and affecting the smooth covering of the soft cover layer. At the same time, it is also convenient to use tools to reach into the connecting piece to fix the locking screw 3; and the two sides of the connecting part 2 are set as wing reinforcement ribs 21 in order to strengthen the stable connection between the connecting part 2 and the fixing part 1. The connecting part is used to fix the backrest plate 5 and the backrest frame 4 of the chair back, and plays a role in weighing. There is a certain angle between the connecting part 2 and the fixing part 1. Therefore, in order to improve the strength of the connecting part, the wing reinforcement ribs 21 are set as reinforcement rib structures, which can enhance the supporting force of the connecting part.
[0034] In this embodiment, the countersunk hole 11 located on the fixing part 1 and the countersunk hole 11 located on the connecting part 2 are located on the same axis, wherein the countersunk hole 11 located on the fixing part 1 is used to facilitate the insertion of the locking screw 3; the countersunk hole 11 located on the connecting part 2 is used to accommodate the head of the locking screw 3.
[0035] Specifically, in order to facilitate the locking screw 3 to accurately fall into the countersunk hole 11 located on one side of the connecting part 2, the countersunk hole 11 opened on the fixing part 1 on the same axis as the connecting part 2 can facilitate the direct insertion of the locking screw 3, and utilizing the characteristics of the countersunk hole 11, the end of the locking screw 3 with a larger head diameter is pre-buried in the countersunk hole 11, thereby perfectly hiding the locking screw 3.
[0036] In this embodiment, the diameter of the countersunk hole 11 is larger than the head diameter of the locking screw.
[0037] Specifically, the diameter of one end of the countersunk hole 11 is larger than the diameter of the other end, forming a T-shaped structure in the vertical cross-section. In this way, when the locking screw 3 passes through the countersunk hole 11 and is fixed on the seat back frame 4, the head of the locking screw 3 can fit into the end of the countersunk hole 11 with a larger diameter, thereby hiding the head of the locking screw 3.
[0038] In this embodiment, the blind hole 12 is composed of two circular holes of different diameters, wherein the circular hole with a larger diameter is used to accommodate the head of the locking screw 3, and the circular hole with a smaller diameter is used to clamp the head of the locking screw 3; a gasket 31 is provided on the outer side of the locking screw 3 on the blind hole 12.
[0039] Specifically, in order to improve the positioning connection between the backrest frame 4 and the backrest plate 5, a blind hole 12 is provided on the connecting piece, and the structure of the blind hole 12 is composed of two circular holes of different diameters. In this way, when the connecting piece is installed on the backrest frame 4, it is only necessary to first fix the locking screw 3 on the backrest frame 4, and then pass the head of the locking screw 3 through the circular hole with a larger diameter and clamp it on the circular hole with a smaller diameter to complete the fixed installation, which not only saves time and effort, but also facilitates disassembly and assembly; in addition, it can also quickly find the correct position and splice the backrest frame 4 with the backrest plate 5. In order to prevent the locking screw 3 from falling off from the blind hole 12, a gasket 31 is sleeved on the outer side of the locking screw 3 to further increase the contact area between the locking screw 3 and the blind hole 12, so that the connection structure is more stable.
[0040] In order to further improve the strength of the connector, the surfaces of the fixing part 1 and the connecting part 2 are both painted, and treated with rust or corrosion resistance; wherein, the material of the connector is selected from metal or high-strength plastic, and necessary rust or corrosion resistance treatment is performed to ensure that the connector has good load-bearing capacity and a long service life.
[0041] Embodiment 2
[0042] On the basis of the first embodiment, the present embodiment installs the connecting member in the first embodiment on a chair, which comprises a chair leg 6, a chair back frame 4, a chair back plate 5 and a seat cushion 7. The chair leg 6 is fixedly connected to the bottom end of the chair back frame 4, the seat cushion 7 is installed above the chair leg 6, and the chair back plate 5 is connected to one side of the chair back frame 4 by a connecting member.
[0043] Specifically, the installation method of the connector on the chair is as follows:
[0044] a. Align one side of the fixing part 1 of the connector with the reserved position of the seat back frame 4 and fix it preliminarily by locking the screw 3. This step is to ensure that the position of the connector is accurate;
[0045] b. After confirming that the position of the connector is correct, tighten the locking screw 3 on the other side of the connector 2 to achieve secondary locking and further strengthen the connection between the connector and the seat back frame 4;
[0046] c. Install the soft cover of the seat back, making sure the connectors are completely covered to complete the overall assembly of the seat back.
[0047] In order to hide the connectors and improve the aesthetics of the chair, when installing the soft cover, it should be ensured that the connectors are completely covered so that no fixing parts can be seen from the outside.
[0048] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A connector for chair back splicing, characterized in that: It includes a fixing part and a connecting part, wherein the fixing part is connected to one end of the connecting part to form an angle, and the fixing part and the connecting part are an integrally formed structure, and each of the fixing part and the connecting part is provided with a countersunk hole, and a locking screw is fixedly connected in the countersunk hole; the fixing part is fixedly connected to the chair back frame by the locking screw, and the connecting part is fixedly connected to the chair back plate by the locking screw; a blind hole is also provided on one side of the mounting hole on the fixing part, and the blind hole is used to adjust the position of the fixing part connected to the chair back frame.
2. The connector for chair back splicing according to claim 1, characterized in that: The angle between the fixing portion and the connecting portion is 15°-45°.
3. The connector for chair back splicing according to claim 1, characterized in that: The length of the connecting portion is half of the length of the fixing portion, and both sides of the connecting portion are bent inward to form side wing reinforcement ribs, and the side wing reinforcement ribs abut against the fixing portion to form a semi-closed structure.
4. The connector for chair back splicing according to claim 1, characterized in that: The countersunk hole on the fixing portion and the countersunk hole on the connecting portion are located on the same axis, wherein the countersunk hole on the fixing portion is used to facilitate the insertion of the locking screw; and the countersunk hole on the connecting portion is used to accommodate the head of the locking screw.
5. The connector for chair back splicing according to claim 1, characterized in that: The diameter of the countersunk hole is larger than the head diameter of the locking screw.
6. The connector for chair back splicing according to claim 1, characterized in that: The blind hole is composed of two circular holes with different diameters, wherein the circular hole with a larger diameter is used to accommodate the head of the locking screw, and the circular hole with a smaller diameter is used to clamp the head of the locking screw.
7. The connector for chair back splicing according to claim 1, characterized in that: A gasket is sleeved on the outer side of the locking screw on the blind hole.
8. A chair, characterized in that: The method comprises adopting the connecting member as claimed in any one of claims 1 to 7, wherein the chair comprises chair legs, a chair back frame, a chair back plate and a seat cushion, The chair legs are fixedly connected to the bottom end of the chair back frame, and the seat cushion is installed above the chair legs. The chair back plate is connected to one side of the chair back frame by a connecting piece.