Simple assembled chair back structure and chair

Abstract

The utility model discloses a simply assembled chair back structure and a chair, the simply assembled chair back structure comprises a back plate provided with a positioning groove, and the positioning groove comprises an entering section and a stopping section which are communicated with each other; the fixing assembly is installed on the back plate and comprises a spring and a fixing block, and the spring is connected with the fixing block and drives part of the fixing block to protrude out of the back plate; the back frame is provided with a fixing groove and a positioning block, the shape of the fixing groove is matched with that of the fixing block, the positioning block is fixedly installed on the back frame, the positioning block is inserted into the entering section in the first direction, then enters the stopping section in the second direction different from the first direction, and drives the fixing block to be inserted into the fixing groove in an aligned mode so as to fixedly connect the back frame and the back plate. The connecting structure of the back plate and the back frame is optimized, the positioning block is sequentially inserted in the first direction and moves in the second direction after being aligned with the positioning groove, then the fixing block can be inserted in the fixing groove in an aligned mode, overall assembly is convenient, and a user can achieve fixed connection of the back frame and the back plate without tools.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a simple assembly chair back structure and a seat with the simple assembly chair back structure. Background Art

[0002] A chair is a seat with a backrest or armrests, wherein the backrest and armrests are connected to the chair frame, and most of the backrests, armrests and chair frames are connected in one piece. In the related art, the backrest and the chair frame are installed by screws, and the two can be separated for packaging and transportation, reducing the packaging space to be occupied. In some related technologies, the chair back includes a backboard and a back frame, and the back frame is used to connect with the chair frame, and the backboard is installed on the back frame, wherein the lateral area of ​​the backboard is generally set to be larger than the back frame, providing a larger support area for the back of the human body, but the existing backboard and back frame are mostly connected by screws, which has the problem that merchants package them separately for transportation, and it is inconvenient for users to assemble them after receiving them. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a simple assembly chair back structure, which is easy to assemble and the user can achieve fixed connection between the back frame and the back plate without the help of tools.

[0004] The utility model also provides a seat with the above-mentioned simple assembly chair back structure.

[0005] A simple assembly chair back structure according to the utility model comprises:

[0006] The back plate is provided with a positioning groove, wherein the positioning groove includes an entry section and a stop section, and the entry section is connected with the stop section;

[0007] A fixing assembly is mounted on the back plate, the fixing assembly comprises a spring and a fixing block, the spring is connected to and drives a portion of the fixing block to protrude outward from the back plate;

[0008] The back frame is provided with a fixing groove and a positioning block. The shape of the fixing groove matches the shape of the fixing block. The positioning block is fixedly installed on the back frame. The positioning block is inserted into the entry section along a first direction, and then enters the stop section along a second direction different from the first direction, and drives the fixing block to be inserted into the fixing groove in an aligned manner to fix the back frame and the back plate.

[0009] According to the simple assembly chair back structure described in the utility model, there are at least the following beneficial effects: the connection structure between the back panel and the back frame is optimized, and after the positioning block is aligned with the positioning groove, it is inserted in the first direction and moved in the second direction in sequence, and then the fixing block can be inserted into the fixing groove in position, the overall assembly is convenient, and the user can achieve a fixed connection between the back frame and the back panel without the aid of tools.

[0010] According to the simple assembly chair back structure of the utility model, the second direction is inclined with respect to the first direction.

[0011] According to the simple assembly chair back structure described in the utility model, the stop section is located above the entry section.

[0012] According to the simple assembly chair back structure described in the utility model, a blocking block is provided along the groove wall of the stop section on the side away from the first direction, and the blocking block is used to block the positioning block.

[0013] According to the simple assembly chair back structure described in the utility model, the end of the positioning block is in a T-shaped structure.

[0014] According to the simple assembly chair back structure described in the utility model, the positioning block and the back frame are fixed by screws.

[0015] According to the simple assembly chair back structure described in the utility model, the fixing block and the fixing groove are both square-shaped.

[0016] According to the simple assembly chair back structure of the utility model, the fixing groove and the positioning block are both arranged on the inner side of the back frame.

[0017] According to the simple assembly chair back structure described in the utility model, the back frame is provided with a disassembly hole, the disassembly hole is communicated with the fixing groove, and the disassembly hole is used for a disassembly tool to pass through so as to drive the fixing block to be separated from the fixing groove.

[0018] The seat according to the utility model comprises a simple assembly chair back structure according to the utility model.

[0019] The seat according to the utility model has at least the following beneficial effects: the connection structure between the back panel and the back frame is optimized, and after the positioning block is aligned with the positioning groove, it is inserted in the first direction and moved in the second direction in sequence, and then the fixing block can be inserted into the fixing groove in position, and the overall assembly is convenient, and the user can achieve a fixed connection between the back frame and the back panel without the aid of tools.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 This is a first exploded view of a simple assembly chair back structure according to an embodiment of the utility model;

[0023] Figure 2 A second exploded view of a simple assembly chair back structure according to an embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of a seat according to an embodiment of the utility model.

[0025] Description of Figure Numbers:

[0026] Back plate 100; first mounting groove 101; positioning groove 102; entry section 1021; stop section 1022; blocking block 110;

[0027] Back frame 200; fixing slot 201; second mounting slot 202; disassembly hole 203; positioning block 210; screw 220;

[0028] Fixing assembly 300; spring 310; fixing block 320;

[0029] Back pad 400;

[0030] Chair frame 500. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing 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.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] A chair is a seat with a backrest or armrests, wherein the backrest and armrests are connected to the chair frame, and most of the backrests, armrests and chair frames are connected in one piece. In the related art, the backrest and the chair frame are installed by screws, and the two can be separated for packaging and transportation, reducing the packaging space to be occupied. In some related technologies, the chair back includes a backboard and a back frame, and the back frame is used to connect with the chair frame, and the backboard is installed on the back frame, wherein the lateral area of ​​the backboard is generally set to be larger than the back frame, providing a larger support area for the back of the human body, but the existing backboard and back frame are mostly connected by screws, which has the problem that merchants package them separately for transportation, and it is inconvenient for users to assemble them after receiving them.

[0037] For this reason, Figure 1 and Figure 2As shown, a simple assembly chair back structure proposed by the utility model includes a backboard 100, a fixing assembly 300 installed on the backboard 100, and a back frame 200 connected to the backboard 100, wherein the back frame 200 is fixedly installed with a positioning block 210, the backboard 100 is provided with a positioning groove 102, and the positioning block 210 is plugged and installed in the positioning groove 102. In addition, the fixing assembly 300 includes a spring 310 and a fixing block 320, the spring 310 is connected and drives part of the fixing block 320 to protrude outward from the backboard 100, and correspondingly, the back frame 200 is provided with a fixing groove 201, and the shape of the fixing block 320 matches the shape of the fixing groove 201. Specifically, the positioning groove 102 includes an entry section 1021 and a stop section 1022 that are interconnected. In application, the positioning block 210 is inserted into the entry section 1021 along a first direction, and then enters the stop section 1022 along a second direction different from the first direction. At this time, the fixing block 320 is inserted into the fixing groove 201 in a position to fix the back frame 200 and the back plate 100. It should be noted that the connection structure of the back plate 100 and the back frame 200 is optimized. After the positioning block 210 is aligned with the positioning groove 102, it is inserted in the first direction and moved in the second direction in sequence. Then, the fixing block 320 can be inserted into the fixing groove 201 in a position, and the overall assembly is convenient. The user can achieve the fixed connection between the back frame 200 and the back plate 100 without the help of tools.

[0038] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the fixing groove 201 and the positioning block 210 are both arranged on the inner side of the back frame 200, so that after the back frame 200 is assembled with the back plate 100, the outer surface of the back frame 200 is smooth and has no grooves, good aesthetics, not easy to accumulate dust, and good cleanliness. Specifically, a second installation groove 202 is arranged on the inner side of the back frame 200, and the positioning block 210 is fixedly installed on the back frame 200 by screws 220. The merchant can pre-install the positioning block 210 in advance and then ship it to the user, or let the user install it freely. In addition, the positioning block 210 can be disassembled from the back frame 200, and the positioning block 210 is a separate accessory that is easy to replace and maintain, without the need to directly replace the back frame 200. In some embodiments, a first mounting groove 101 is provided on the outer side of the back plate 100, and the fixing assembly 300 is installed in the first mounting groove 101. For example, a countersunk hole is provided on the end wall of the first mounting groove 101 for one end of the spring 310 to extend thereinto, and the fixing block 320 is installed in the first mounting groove 101. The other end of the spring 310 presses against the fixing block 320 to drive a part of the fixing block 320 to extend out of the first mounting groove 101. Optionally, the first mounting groove 101, the fixing block 320 and the fixing groove 201 are all square-shaped, so that after the fixing block 320 is inserted into the fixing groove 201, the back frame 200 cannot deflect relative to the back plate 100. It is easy to understand that the fixing block 320 and the fixing groove 201 are angular shapes to avoid the occurrence of deflection after installation, such as the fixing block and the fixing groove are both prismatic, frustum-shaped, etc. (not shown in the figure). In some other embodiments, the fixing block and the fixing groove are both cylindrical (not shown in the figure), and the fixing block and the fixing groove do not have an anti-deflection function after installation. In this regard, the positioning block abuts and cooperates with the side wall of the positioning groove, and the deflection function can be achieved after installation. For example, the end of the positioning block 210 is a T-shaped structure, and the overall shape is a combination of two staggered T-shaped structures, which is convenient for operating the bottom screw 220, or the entire positioning block is a "work"-shaped shape (not shown in the figure). The positioning block 210 with a T-shaped end extends into the positioning groove 102, abuts against the opposite side wall of the positioning groove 102, and the stop section 1022 is provided with a blocking block 110 along the groove wall on the side away from the first direction, and the blocking block 110 is used to block the positioning block 210. Furthermore, after the end of the positioning block 210 enters the stop section 1022, the blocking block 110 can block the positioning block 210 from exiting along the side away from the first direction. It is easy to understand that at this time, the fixing block 320 is embedded in the fixing groove 201 , and the positioning block 210 cannot freely return to the entry section 1021 .

[0039] In some embodiments of the present invention, the second direction is inclined with respect to the first direction. It should be noted that as long as the second direction is different from the first direction, the back frame 200 can be displaced relative to the back plate 100, so that the fixing block 320 is aligned with the fixing groove 201, and the two are fixedly connected. Optionally, the first direction is the direction along the thickness of the back plate 100 toward the center of the seat, and the second direction is the direction of the height of the back plate 100 upward. Figure 1 and Figure 2 The stop section 1022 is located above the entry section 1021, so that after the user aligns the positioning block 210 with the entry section 1021 of the positioning slot 102, it is necessary to overcome gravity and move the positioning block 210 upward to the stop section 1022 of the positioning slot 102. In addition, the upper wall of the installed fixing block 320 is pressed against the lower wall of the fixing slot 201 under the action of gravity, so that it is not easy to fall off and separate during use by the user.

[0040] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the back frame 200 is provided with a disassembly hole 203, which is connected to the fixing groove 201. The disassembly hole 203 is used for a disassembly tool to pass through to drive the fixing block 320 out of the fixing groove 201, and then, the user can conveniently separate the back plate 100 from the back frame 200. For example, the user uses a disassembly stick to poke into the disassembly hole 203, push the fixing block 320 into the first installation groove 101 and separate from the fixing groove 201, and then, under the action of gravity or actively driven by the user, the back plate 100 moves downward relative to the back frame 200, so that the positioning block 210 enters the entry section 1021 of the positioning groove 102, and the back plate 100 and the back frame 200 can move away from the first direction and separate.

[0041] Refer to Figure 3 The seat according to the embodiment of the utility model includes a simple assembly chair back structure according to the embodiment of the utility model, wherein the back frame 200 is connected to the chair frame 500, and the periphery of the back panel 100 is wrapped with a back cushion 400. The back cushion 400 has good softness and is suitable for users to lean back on. By adopting a simple assembly chair back structure according to the embodiment of the utility model, the connection structure of the back panel 100 and the back frame 200 is optimized. After the positioning block 210 is aligned with the positioning groove 102, it is inserted in the first direction and moved in the second direction in turn. Then, the fixing block 320 can be inserted into the fixing groove 201 in alignment. The overall assembly is convenient, and users can achieve a fixed connection between the back frame 200 and the back panel 100 without the aid of tools.

[0042] Other structures and operations of the seat according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0043] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A simple assembly chair back structure, characterized in that: include: The back plate is provided with a positioning groove, wherein the positioning groove includes an entry section and a stop section, and the entry section is connected with the stop section; A fixing assembly is mounted on the back plate, the fixing assembly comprises a spring and a fixing block, the spring is connected to and drives a portion of the fixing block to protrude outward from the back plate; The back frame is provided with a fixing groove and a positioning block. The shape of the fixing groove matches the shape of the fixing block. The positioning block is fixedly installed on the back frame. The positioning block is inserted into the entry section along a first direction, and then enters the stop section along a second direction different from the first direction, and drives the fixing block to be inserted into the fixing groove in an aligned manner to fix the back frame and the back plate.

2. The easy-to-assemble chair back structure according to claim 1, characterized in that: The second direction is inclined with respect to the first direction.

3. The easy-to-assemble chair back structure according to claim 1, characterized in that: The exit stop section is located above the entry section.

4. The easy-to-assemble chair back structure according to any one of claims 1 to 3, characterized in that: A blocking block is provided on the groove wall of the stop section along the side away from the first direction, and the blocking block is used to block the positioning block.

5. The easy-to-assemble chair back structure according to claim 1, characterized in that: The end of the positioning block is in a T-shaped structure.

6. The easy-to-assemble chair back structure according to claim 1 or 5, characterized in that: The positioning block and the back frame are fixed by screws.

7. The easy-to-assemble chair back structure according to claim 1, characterized in that: The fixing block and the fixing groove are both square-shaped.

8. The easy-to-assemble chair back structure according to claim 1, characterized in that: The fixing groove and the positioning block are both arranged on the inner side of the back frame.

9. The easy-to-assemble chair back structure according to claim 1, characterized in that: The back frame is provided with a disassembly hole, the disassembly hole is communicated with the fixing groove, and the disassembly hole is used for a disassembly tool to pass through so as to drive the fixing block to be separated from the fixing groove.

10. A seat, characterized in that: It comprises a simple assembly chair back structure as described in any one of claims 1 to 9.

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