Chair back assembly convenient to install

Abstract

The utility model provides a chair back component convenient to install, which comprises a back bracket component and a back support component, the back bracket component comprises a main support piece and a connecting piece, the main support piece comprises two support arms which extend upwards and are arranged at intervals, and an upwards open accommodating space is formed between the two support arms; the back support assembly is provided with a connecting part, two mounting holes which are arranged at intervals are formed in the connecting part, and the two support arms are respectively inserted into the two mounting holes and are upwards exposed out of the connecting part; an accommodating part is formed between the two mounting holes and is positioned in the accommodating space; the connecting piece is located above the connecting part, and the two ends of the connecting piece are connected with the two supporting arms respectively and seal the containing space. According to the disassembly and assembly scheme, the chair back assembly can be disassembled during transportation, so that the effects of reducing packaging waste and improving the space utilization rate during transportation are achieved.

Description

Technical Field

[0001] This utility model relates to the field of furniture, and in particular to a chair back assembly that is easy to install. Background Technology

[0002] As one of the most common types of furniture, chairs have huge sales volumes. In addition to production costs, manufacturers also face high packaging and transportation costs. For manufacturers, how to reduce packaging and transportation costs is a topic that requires continuous research.

[0003] The hollow, ring-shaped backrest support offers advantages such as aesthetics and cost savings on materials. However, in most existing chairs, the ring-shaped backrest support and the back frame are not detachably connected. This is mainly because the connection between the ring-shaped backrest support and the back frame is relatively complicated, making it difficult for consumers to install themselves, which reduces the consumer's product experience, thereby diminishing brand image and affecting future sales. Therefore, this type of chair back component must be packaged and transported together, which greatly increases packaging costs and transportation costs due to poor space utilization. Summary of the Invention

[0004] To address the aforementioned technical problems, this utility model provides an easy-to-install chair back assembly, including a back support assembly and a back support component. The main support member in the back support assembly has two arms, forming an accommodating space between the two arms. The back support component has a connecting portion with mounting holes, forming an accommodating space between the mounting holes. When the main support member and the connecting portion are installed, the two arms are inserted into the two mounting holes, and the accommodating space is placed within the accommodating space. The connecting member is located above the connecting portion, and its two ends are connected to the two arms, closing the accommodating space, making the back support assembly ring-shaped. Through the above disassembly and assembly scheme, the chair back assembly can be disassembled during transportation, thereby reducing packaging waste and improving space utilization during transportation.

[0005] The technical solution of this utility model is implemented as follows:

[0006] An easy-to-install chair back assembly includes a back support assembly and a back brace assembly. The back support assembly includes a main support member and a connector. The main support member includes two upwardly extending and spaced-apart support arms, forming an upwardly open receiving space between the two support arms. The back brace assembly has a connecting portion with two spaced-apart mounting holes. The two support arms are respectively inserted into the two mounting holes and protrude upward from the connecting portion. The receiving portion is formed between the two mounting holes and is located in the receiving space. The connector is located above the connecting portion, and its two ends are respectively connected to the two support arms and close the receiving space.

[0007] The back support assembly and the back support assembly are detachably connected. During installation, simply insert the support arm into the corresponding mounting hole and then install the connector onto the two support arms to prevent the back support assembly from detaching from the support arms. The design is no different from the traditional ring-shaped back support. During disassembly, simply remove the connector from the main support and then pull the support arm out of the back support assembly.

[0008] Because the chair back assembly is easy to assemble and disassemble and simple to operate, even if consumers receive separate back support and back bracket assemblies, they can easily install them. Therefore, the chair back assembly has a use state and a transportation state. In the use state, the back support and back bracket assemblies are assembled together as described above. In the transportation state, the back support and back bracket assemblies are disassembled and packaged separately for transportation, reducing packaging waste. At the same time, the smaller packaging volume can increase the space utilization rate during transportation and greatly save packaging and transportation costs.

[0009] Preferably, the two support arms are arranged spaced apart to the left and right, and the connectors are arranged horizontally to the left and right, with the connectors fixedly connected to the upper ends of the two support arms. With the two support arms spaced apart to the left and right, after the connectors are connected to the upper ends of both, the back support assembly is ring-shaped. Compared with the traditional plate-shaped back support, the ring-shaped back support is more aesthetically pleasing and saves more materials.

[0010] Preferably, both ends of the connector have downwardly protruding insertion portions, and the upper ends of both support arms have slots. The insertion portions are inserted into the slots and fixedly connected to the support arms. The insertion portions and slots allow for overlap between the connector and the main support, thus facilitating their connection.

[0011] Preferably, a locking seat protrudes forward within the slot, and a receiving groove is formed on the rear end face of the insertion part. When the insertion part is inserted into the slot, the locking seat is inserted into the receiving groove. The connection between the locking seat and the receiving groove further stabilizes the connection between the connector and the main support.

[0012] Preferably, the locking seat has a threaded hole, and the insertion part has a threaded hole coaxial with the threaded hole. The threaded hole communicates with the receiving groove, and the insertion part and the locking seat are fixedly connected by screws installed from front to back. This solution achieves a fixed connection between the connector and the main support, and also hides the screws. The screws are installed from front to back, so they are not visible on the back of the chair back assembly, thus enhancing the visual aesthetics of the chair back assembly.

[0013] Preferably, the front end face of the support arm is thinned from front to back to form the slot.

[0014] Preferably, the upper end face of the support arm slopes upward from the inside out, and the lower end face of the slot slopes downward from the inside out. In the vertical direction, both surfaces of the connector that mate with the support arm are beveled, and the beveled contact is similar to a wedge connection, which increases the stability of the connection and prevents the connector from wobbling in the lateral direction.

[0015] Preferably, the connector is fitted with a U-shaped bushing, which is inserted into the slot along with the connector. This ensures a tight fit between the connectors, preventing lateral movement and increasing connection stability.

[0016] Preferably, the connector is U-shaped. The two ends of the U-shaped connector extend downwards, and the insertion portion continues to extend downwards at both ends.

[0017] Preferably, the back support assembly includes a lumbar support and a backrest, with the lumbar support connected to the backrest and located below the backrest; the backrest includes a back frame, with the lower part of the back frame protruding rearward to form the connecting part.

[0018] The design starting point, concept, and beneficial effects of this utility model, which adopts the above technical solution, are as follows:

[0019] The back support assembly and the back support assembly are detachably connected. During installation, simply insert the support arm into the corresponding mounting hole and then install the connector onto the two support arms to prevent the back support assembly from detaching from the support arms. The design is no different from the traditional ring-shaped back support. During disassembly, simply remove the connector from the main support and then pull the support arm out of the back support assembly.

[0020] Because the chair back assembly is easy to assemble and disassemble and simple to operate, even if consumers receive separate back support and back bracket assemblies, they can easily install them. Therefore, the chair back assembly has a use state and a transportation state. In the use state, the back support and back bracket assemblies are assembled together as described above. In the transportation state, the back support and back bracket assemblies are disassembled and packaged separately for transportation, reducing packaging waste. At the same time, the smaller packaging volume can increase the space utilization rate during transportation and greatly save packaging and transportation costs. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the chair back assembly in an embodiment of the present invention. Figure 1 ;

[0022] Figure 2 This is a three-dimensional structural diagram of the chair back assembly in an embodiment of the present invention. Figure 2 ;

[0023] Figure 3 This is a three-dimensional structural diagram of the chair back assembly after the mesh fabric has been removed in an embodiment of the present invention.

[0024] Figure 4 This is a three-dimensional structural diagram of the back support component in an embodiment of the present invention;

[0025] Figure 5 This is a three-dimensional structural diagram of the back support assembly in an embodiment of the present invention;

[0026] Figure 6 This is an exploded view of the back support assembly in an embodiment of the present invention;

[0027] Figure 7 This is a three-dimensional structural diagram of the connector in an embodiment of the present invention.

[0028] The reference numerals in the attached figures are as follows: back support assembly 1; back support assembly 2; lumbar support 21; back frame 22; main support 3; support arm 31; mounting part 32; connector 4; accommodating space 5; connecting part 6; accommodating part 61; mounting hole 7; plug-in part 8; slot 9; locking seat 10; accommodating groove 11; threaded hole 12; screw hole 13; bushing 14. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0031] In the description of this utility model, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] The specific embodiments of this utility model are as follows:

[0033] like Figure 1-3 As shown, this utility model provides an easy-to-install chair back assembly, including a back support assembly 1 and a back support assembly 2. The back support assembly 1 includes a main support member 3 and a connector 4. The main support member 3 includes two upwardly extending and spaced apart support arms 31, forming an upwardly open accommodating space 5 between the two support arms 31. The back support assembly 2 has a connecting part 6, on which two spaced-apart mounting holes 7 are provided. The mounting holes 7 pass through the connecting part 6 vertically, and the two support arms 31 are respectively inserted into the two mounting holes 7 and exposed upward from the connecting part 6. An accommodating part 61 is formed between the two mounting holes 7 and is located in the accommodating space 5. The connector 4 is located above the connecting part 6, and both ends of the connector 4 are respectively connected to the two support arms 31 and close the accommodating space 5.

[0034] The back support assembly 1 and the back support assembly 2 are detachably connected. During installation, simply insert the support arm 31 into the corresponding mounting hole 7, and then install the connector 4 onto the two support arms 31 to prevent the back support assembly 2 from detaching from the support arms 31. The shape is no different from the traditional ring back support. During disassembly, simply remove the connector 4 from the main support 3, and then pull the support arm 31 out of the back support assembly 2.

[0035] Because the chair back assembly is easy to assemble and disassemble and simple to operate, even if consumers receive separate back support assembly 1 and back support assembly 2, they can easily install them. Therefore, the chair back assembly has a use state and a transportation state. In the use state, the back support assembly 1 and back support assembly 2 are assembled together as described above. In the transportation state, the back support assembly 1 and back support assembly 2 are disassembled and packaged separately for transportation, reducing packaging waste. At the same time, the smaller packaging volume can increase the space utilization rate during transportation and greatly save packaging and transportation costs.

[0036] Specifically, such as Figure 3-5 As shown, the back support assembly 1 is ring-shaped after the main support member 3 and the connector 4 are connected. The main support member 3 also includes a mounting part 32 for connecting the seat or chassis. The lower ends of the two support arms 31 are fixedly connected to the mounting part 32, and the two support arms 31 and the mounting part 32 are integrally formed. The two support arms 31 are arranged left and right at intervals, and the connector 4 is arranged horizontally left and right. The connector 4 is fixedly connected to the upper ends of the two support arms 31. The connector 4 is U-shaped. Further, the two ends of the U-shaped connector 4 extend downward, and the ground at both ends of the downward extension is provided with a plug-in part 8, and the plug-in part 8 continues to extend downward at both ends of the downward extension. The two support arms 31 are spaced left and right. After the connector 4 is connected to the upper ends of the two support arms, the back support assembly 1 is ring-shaped. Compared with the traditional plate-shaped back support, the ring-shaped back support is more beautiful and saves more materials. The back support assembly 2 includes a lumbar support 21 and a backrest. The lumbar support 21 is connected to the backrest and is located below the backrest. The backrest includes a back frame 22, on which a mesh fabric is provided. The lower part of the back frame 22 protrudes backward to form the connecting part 6.

[0037] Furthermore, such as Figure 6 , 7As shown, slots 9 are provided at the upper ends of both support arms 31. Specifically, the front end face of the upper end of the support arm 31 is thinned from front to back in the middle part in the left-right direction to form the slots 9. The insertion part 8 is inserted into the slot 9 and fixedly connected to the support arm 31. The insertion part 8 and the slot 9 make the connecting member 4 and the main support member 3 overlap, thereby facilitating their connection. A locking seat 10 protrudes forward in the slot 9, and a receiving groove 11 is provided at the rear end face of the insertion part 8. When the insertion part 8 is inserted into the slot 9, the locking seat 10 is inserted into the receiving groove 11. The connection between the connecting member 4 and the main support member 3 is further stabilized by the insertion of the locking seat 10 and the receiving groove 11. The locking seat 10 has a threaded hole 12, and the plug-in part 8 has a screw hole 13 coaxial with the threaded hole 12. The screw hole 13 communicates with the receiving groove 11. The plug-in part 8 and the locking seat 10 are fixedly connected by screws installed from front to back. This solution realizes the fixed connection between the connector 4 and the main support 3, and also has the function of hiding the screws. The screws are installed from front to back, so they are not visible on the back of the chair back assembly, thereby increasing the visual aesthetics of the chair back assembly. The plug-in part 8 is covered with a U-shaped bushing 14. The bushing 14 and the plug-in part 8 are inserted into the slot 9 together, so that the plug-in part 8 is tightly fitted and the connector 4 will not wobble from side to side, thus increasing the stability of the connection.

[0038] In addition, the upper end face of the support arm 31 is inclined upward from the inside out, and the lower end face of the slot 9 is inclined downward from the inside out. In the vertical direction, the two surfaces of the connector 4 that are in contact with the support arm 31 are both inclined surfaces. The inclined surfaces are similar to wedges, which increases the stability of the connection and prevents the connector 4 from shaking in the left and right directions.

Claims

1. A chair back assembly that is easy to install, characterized in that: The device includes a back support assembly and a back bracing assembly. The back support assembly includes a main support member and a connector. The main support member includes two upwardly extending and spaced-apart arms, forming an upwardly open accommodating space between the two arms. The back bracing assembly has a connecting portion with two spaced-apart mounting holes. The two arms are respectively inserted into the two mounting holes and protrude upward from the connecting portion. An accommodating portion is formed between the two mounting holes and is located within the accommodating space. The connector is located above the connecting portion, and both ends of the connector are connected to the two arms respectively, thus closing the accommodating space.

2. The easy-to-install chair back assembly according to claim 1, characterized in that: The two outriggers are arranged at intervals on the left and right, and the connectors are arranged horizontally on the left and right. The connectors are fixedly connected to the upper ends of the two outriggers.

3. The easy-to-install chair back assembly according to claim 2, characterized in that: Both ends of the connector have downward protruding insertion parts, and the upper ends of the two support arms have slots. The insertion parts are inserted into the slots and fixedly connected to the support arms.

4. The easy-to-install chair back assembly according to claim 3, characterized in that: A locking seat protrudes forward inside the slot, and a receiving groove is opened on the rear end face of the plug-in part. When the plug-in part is inserted into the slot, the locking seat is inserted into the receiving groove.

5. The easy-to-install chair back assembly according to claim 4, characterized in that: The locking seat has a threaded hole, and the plug part has a screw hole coaxial with the threaded hole. The screw hole is connected to the receiving groove. The plug part and the locking seat are fixedly connected by screws installed from front to back.

6. The easy-to-install chair back assembly according to claim 3, characterized in that: The slot is formed by thinning the front end face of the support arm from front to back.

7. The easy-to-install chair back assembly according to claim 3, characterized in that: The upper end face of the support arm slopes upward from the inside out, while the lower end face of the slot slopes downward from the inside out.

8. The easy-to-install chair back assembly according to claim 3, characterized in that: The connector is fitted with a U-shaped bushing, which is inserted into the slot along with the connector.

9. The easy-to-install chair back assembly according to claim 1, characterized in that: The connector is U-shaped.

10. The easy-to-install chair back assembly according to claim 1, characterized in that: The back support assembly includes a lumbar support and a backrest, with the lumbar support connected to the backrest and located below the backrest; the backrest includes a back frame, with the lower part of the back frame protruding rearward to form the connecting part.

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