Ergonomic backrest capable of being quickly disassembled and assembled

Abstract

The utility model discloses an ergonomic backrest capable of being quickly disassembled and assembled. The ergonomic backrest comprises a bracket and a backrest plate, connecting parts are arranged on the front sides of the brackets; the backrest plate is detachably connected with the connecting part through the connecting cantilever; a connecting cavity is formed in the connecting part, and a slot communicated with the outside is formed in one side of the connecting cavity; the front ends of the connecting cantilevers are connected with the backrest plate, the rear ends of the connecting cantilevers are provided with inserting pieces, and the inserting pieces are detachably inserted and fixed into the inserting grooves. Therefore, the backrest plate, the connecting cantilever and the connecting part can be quickly disassembled and assembled, the product size can be reduced, the transportation cost can be reduced, and a user can conveniently assemble and install.

Description

Technical Field

[0001] The utility model relates to the technical field of seat backrests, in particular to an ergonomic backrest that can be quickly disassembled and assembled. Background Art

[0002] Chairs are a type of furniture that is widely used in daily life and work. In order to meet people's personalized needs and bring a more comfortable and healthy user experience, the structure and function of seats are constantly being improved.

[0003] Existing seat back structures typically consist of a bracket and two backrest panels. The backrest panels and bracket are often connected via a connecting arm (such as a connecting spring). Multiple screws are used at each end of the connecting arm to removably secure the backrest panels and bracket to facilitate disassembly and reduce product packaging and shipping volume. However, the frequent tightening of multiple screws required with existing connecting arms requires tools such as screwdrivers for assembly, making the process cumbersome and laborious, and resulting in a poor user experience. Utility Model Content

[0004] The purpose of the utility model is to provide an ergonomic backrest that can be quickly disassembled and assembled, which has the advantages of being convenient and practical and improving user experience.

[0005] In order to achieve the above objectives, the solution of the present invention is:

[0006] An ergonomic backrest that can be quickly disassembled and assembled, comprising a bracket and a backrest board;

[0007] A connecting portion is provided on the front side of the bracket;

[0008] The backrest plate is detachably connected to the connecting portion via a connecting cantilever;

[0009] The connecting portion has a connecting chamber in it, and one side of the connecting chamber has a slot communicating with the outside world;

[0010] The front end of the connecting cantilever is connected to the backrest plate, and the rear end of the connecting cantilever is provided with an inserting piece, and the inserting piece is detachably inserted and fixed in the slot.

[0011] Furthermore, a rotatable pressure plate is installed in the connecting chamber, one end of the pressure plate is a locking hook, and the locking hook is located in the connecting chamber; the other end of the pressure plate is a pressing part, which extends out of the connecting chamber, and the pressing part is connected to a spring, which provides elastic force to enable the pressing part to drive the locking hook to rotate and lock the plug.

[0012] Furthermore, the inserting piece is provided with an inserting hole; a locking block is protruded from the locking hook, and the locking block is movably inserted into the inserting hole of the inserting piece located in the slot.

[0013] Furthermore, the backrest plates are divided into two and are distributed on the left and right sides, and the front side of the corresponding bracket is provided with two connecting parts distributed on the left and right sides;

[0014] The bracket is provided with a connecting component, and the two connecting parts are respectively provided at the left and right ends of the front side of the connecting component;

[0015] The connecting portion includes a connecting body and a connecting front cover. The connecting front cover covers the front side of the connecting body, and the connecting chamber is formed between the connecting front cover and the connecting body.

[0016] Furthermore, the connecting front cover is covered on the outer side of the connecting body away from the other connecting body, and a spring groove is provided on the inner side of the connecting body; the pressing portion of the pressure plate is located at the front side of the spring groove; the spring is installed in the spring groove, and the two ends of the spring respectively rest against the bottom of the spring groove and the rear side of the pressing portion.

[0017] Furthermore, a rotating shaft is provided between the locking hook portion and the pressing portion of the pressure plate, and the rotating shaft is rotatably installed in the connecting chamber; and a side of the locking block close to the slot opening has an inclined surface.

[0018] Furthermore, the backrest plate includes a frame plate and a flexible cushion; the rear side of the frame plate is connected to the connecting cantilever; and the flexible cushion is detachably arranged on the front side of the frame plate.

[0019] Furthermore, the frame plate is provided with clamping holes around each other; the upper and lower parts of the flexible cushion are respectively covered with connecting plates, and the left and right sides of the connecting plates respectively have clamping columns extending out of the rear side of the flexible cushion, and each clamping column is detachably inserted into each clamping hole.

[0020] Furthermore, a vibration motor is provided on the backrest plate; the connecting cantilever is a spring structure; the frame plate has a structure with a rear concave middle portion, and a plurality of hollow holes are provided on the frame plate; the vibration motor is fixed to the rear side of the flexible cushion and is located in one of the hollow holes of the frame plate.

[0021] Furthermore, an adjustment slot extending up and down is provided in the middle of the bracket; an adjustment portion is provided on the rear side of the connecting assembly;

[0022] The left and right ends of the adjusting portion are respectively matched with the front and rear limit edges of the left and right sides of the adjusting slot, and the adjusting portion can slide back and forth or be positioned and fixed in the adjusting slot;

[0023] A knob is provided on the back of the adjustment part, and two pressing blocks are respectively provided on the left and right sides of the knob; when the knob is rotated, the two pressing blocks slide on the left and right ends of the adjustment part to flexibly press the two sides of the adjustment slot.

[0024] Furthermore, the two pressing blocks are respectively slidably assembled on the left and right sides of the adjustment portion; the outer end of the pressing block has a pressing portion, the pressing portion is movable against the side of the adjustment groove, and the inner end of the pressing block has an arc convex surface;

[0025] The knob is rotatably mounted on the adjustment portion, and the knob body of the knob is located between the inner ends of the two pressing blocks; two linkage parts are provided on the outer circumference of the knob body at intervals of 180 degrees, and each linkage part includes a convex part and a concave part distributed adjacent to each other in the circumferential direction;

[0026] A tension spring is connected between the two pressing blocks, and the tension spring provides elastic force to make the inner end of the pressing block press against the linkage part;

[0027] When the knob is rotated so that the convex parts of the two linkage parts simultaneously abut against the arc convex surfaces of the two pressing blocks, the pressing parts of the pressing blocks press the side edges of the adjustment grooves; when the knob is rotated so that the concave parts of the two linkage parts simultaneously abut against the annular convex surfaces of the two pressing blocks, the pressing parts of the pressing blocks release the pressure on the side edges of the adjustment grooves.

[0028] With the above technical solution, the backrest can be locked by inserting the insert connecting the cantilever into the slot and locking it with the inner pressure plate. Pressing the pressing portion unlocks the insert and removes it from the slot. This allows for quick assembly and disassembly of the backrest, the cantilever, and the connecting portion, reducing product size and shipping costs. It also facilitates assembly and installation, allowing for easy disassembly and storage when not in use, reducing storage space requirements. It also facilitates individual repair and replacement of the backrest, significantly improving the user experience with the backrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A front perspective view of an embodiment of the present invention;

[0030] Figure 2 A rear perspective view of an embodiment of the present invention;

[0031] Figure 3 It is a left side view of an embodiment of the utility model;

[0032] Figure 4 An exploded view of an embodiment of the present utility model;

[0033] Figure 5 This is a cross-sectional view of an embodiment of the present utility model (1);

[0034] Figure 6 This is a cross-sectional view (2) of an embodiment of the present utility model;

[0035] Figure 7 This is a partial structural exploded view of an embodiment of the present utility model (1);

[0036] Figure 8 This is a partial structural exploded view of an embodiment of the present utility model (II);

[0037] Figure 9 This is an exploded view of the backrest board of an embodiment of the present utility model.

[0038] Reference numerals: bracket 1, adjustment slot 11, side 111, wavy structure 112, connecting assembly 2, adjustment portion 21, adjustment body 211, adjustment rear shell 212, installation chamber 213, slide slot 214, rotation slot 215, limiting plate 216, knob 22, knob body 221, linkage portion 222, convex portion 2221, concave portion 2222, rotating handle 223, rotating portion 224, limiting slot 225, stopper 2251, pressing block 23, pressing portion 231, arc convex surface 23 2, hook 233, clamping groove 24, tension spring 25, connecting part 26, connecting body 261, connecting front cover 262, connecting chamber 263, slot 264, spring slot 265, pressure plate 27, locking hook 271, locking block 2711, pressing part 272, rotating shaft 273, spring 28, backrest plate 3, frame plate 31, hollow hole 311, clamping hole 312, flexible cushion 32, connecting piece 321, clamping column 322, vibration motor 4, connecting cantilever 5, insert piece 51, jack 511. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0040] like Figures 1 to 4 The utility model discloses an ergonomic backrest that can be quickly disassembled and assembled, comprising a bracket 1, a connecting component 2 and a backrest board 3.

[0041] Another example Figure 1 、 Figure 2 and Figure 9 As shown, the backrest boards 3 of this embodiment can be two and arranged symmetrically on the left and right, but are not limited to two.

[0042] The backrest plates 3 on both sides can be detachably connected to the front side of the bracket 1 through the connecting cantilever 5. The connecting cantilever 5 in this embodiment is an example of a "U"-shaped spring structure.

[0043] In this embodiment, the front side of the bracket 1 is provided with two symmetrically arranged connecting portions 26; specifically, the bracket 1 may be provided with a connecting component 2, and the two connecting portions 26 are respectively provided at the left and right ends of the front side of the connecting component 2;

[0044] The two backrest plates 3 are detachably connected to the two connecting parts 26 through the connecting cantilevers 5 respectively;

[0045] The connecting portion 26 has a connecting chamber 263 in it, and one side of the connecting chamber 263 has a slot connected to the outside world;

[0046] The front end of the connecting cantilever 5 can be connected to the backrest plate 3 by screws. The rear end of the connecting cantilever 5 has an insert 51 , and the insert 51 is detachably inserted and fixed in the slot 264 .

[0047] Thus, the backrest board 3 of this embodiment can be quickly assembled and disassembled from the connecting portion 26 of the connecting assembly 2 by inserting and mating the insert 51 of the connecting arm 5 into the slot 264, thereby reducing the product size and transportation costs. Furthermore, it is convenient for the user to disassemble and store the backrest board 3 when not in use, reducing the storage space occupied. It also facilitates individual repair and replacement of the backrest board 3.

[0048] In this embodiment, a rotatable pressing plate 27 is installed in the connecting chamber 263 . One end of the pressing plate 27 is a locking hook 271 . The locking hook 271 is located in the connecting chamber 263 .

[0049] The other end of the pressing plate 27 is a pressing portion 272 , which extends out of the connecting chamber 263 and is connected to a spring 28 . The spring 28 provides elastic force to enable the pressing portion 272 to drive the locking hook 271 to rotate and lock the insert 51 .

[0050] Specifically, the insert 51 may have an insertion hole 511, and the locking hook 271 may have a locking block 2711 protruding therefrom. The spring 28 pushes up the pressing portion 272 and drives the locking hook 271 to rotate, so that the locking block 2711 is inserted into the insertion hole 511 of the insert 51 located in the slot 264.

[0051] Thus, the inserting piece 51 is inserted into the slot 264 and locked with the inner pressure plate 27, which can facilitate the user's assembly and installation operations.

[0052] See also Figure 7 and Figure 8 The connecting portion 26 includes a connecting body 261 and a connecting front cover 262. The connecting front cover 262 covers the front side of the connecting body 261 and the two can be fixed by screws. The connecting chamber 263 is formed between the connecting front cover 262 and the connecting body 261.

[0053] Specifically, the connection front cover 262 covers the outer side of the connection body 261 away from the other connection part 26, and the inner side of the connection body 261 is provided with a spring groove 265; the pressing part 272 of the pressure plate 27 is located at the front side of the spring groove 265; the spring 28 is installed in the spring groove 265, and the two ends of the spring 28 respectively abut the bottom of the spring groove 265 and the rear side of the pressing part 272.

[0054] The spring 28 pushes the pressing portion 272 of the pressure plate 27 forward, so that the locking hook 271 can firmly buckle the insert 51 in the slot 264 backward; and when the backrest board 3 needs to be removed, it is only necessary to press the pressing portion 272, squeeze the spring 28, drive the pressure plate 27 to rotate, and make the locking block 2711 of the locking hook 271 disengage from the insertion hole 511 of the insert 51, and then the insert 51 can be pulled out from the slot 264, thereby realizing the separation of the backrest board 3 and the connecting portion 26.

[0055] In this embodiment, a rotating shaft 273 is provided between the locking hook portion 271 and the pressing portion 272 of the pressing plate 27 . The rotating shaft 273 is rotatably installed in the connecting chamber 263 to facilitate the rotation of the pressing plate 27 .

[0056] At the same time, the locking block 2711 in this embodiment may have an inclined surface on one side near the opening of the slot 264. This facilitates the insertion of the insert 51 into the slot 264, automatically causing the locking hook 271 to tilt, and then allowing the locking block 2711 to be quickly positioned and inserted into the insertion hole 511 of the insert 51, thereby achieving a quick installation operation.

[0057] For example Figure 2 、 Figure 3 and Figure 9 As shown, a vibration motor 4 may be provided on the backrest plate 3. The vibration motor 4 can be used to realize the massage function of the backrest plate 3 to massage the user's back.

[0058] Specifically, the backrest board 3 in this embodiment includes a frame board 31 and a flexible cushion 32 .

[0059] The frame plate 31 is generally of a structure with a concave center portion and is provided with a plurality of hollow holes 311 , thereby reducing the weight of the frame plate 31 and ensuring structural strength.

[0060] The rear side of the frame plate 31 is connected to the connecting cantilever 5;

[0061] The flexible cushion 32 is detachably provided on the front side of the frame plate 31;

[0062] The frame plate 31 is provided with clamping holes 312 on all four sides; the upper and lower parts of the flexible cushion 32 are respectively covered with connecting pieces 322, and the left and right sides of the connecting piece 322 respectively have clamping columns 322 extending out from the rear side of the flexible cushion 32, and each clamping column 322 is detachably inserted into each clamping hole 322.

[0063] In this embodiment, a buckle 312 is provided at each of the four corners of the frame plate 31, and a clamping column 322 is provided at each of the left and right ends of the corresponding connecting piece 322 to realize the installation and disassembly of the flexible cushion 32, which is convenient for replacement and cleaning.

[0064] The vibration motor 4 can be fixed to the rear side of the flexible cushion 32 and located in one of the hollow holes 311 of the frame plate 31 .

[0065] A better massage effect can be achieved by directly fixing the vibration motor 4 on the flexible cushion 32. The flexible cushion 32 can be a silicone pad or the like.

[0066] Another example Figure 2 and Figure 4 The middle part of the bracket 1 may be provided with an adjustment slot 11 extending up and down, which is used for adjusting the height of the connecting component 2 and the backrest board 3.

[0067] The front side of the connecting assembly 2 is connected to the backrest board 3 through the connecting portion 26; the backrest board 3 is provided for the user's back to lean on and plays a supporting role. The backrest board 3 can be of a structure with a concave middle portion to relieve the user's back fatigue caused by sitting for a long time.

[0068] An adjustment portion 21 may be provided on the rear side of the connecting component 2; the left and right ends of the adjusting portion 21 are respectively matched with the front and rear limiters of the left and right side edges of the adjusting slot 11, and the adjusting portion 21 can slide back and forth or be positioned and fixed in the adjusting slot 11; thus, the connecting component 2 can be used to realize the up and down movable adjustment of the backrest board 3 to adapt to people of different heights.

[0069] Specifically, a knob 22 is provided on the back of the adjustment portion 21 , and two pressing blocks 23 are provided on the left and right sides of the knob 22 respectively; the knob 22 rotates to link the two pressing blocks 23 to slide on the left and right ends of the adjustment portion 21 to flexibly press the two side edges 111 of the adjustment slot 11 .

[0070] Thus, when the height of the backrest board 3 needs to be adjusted, the knob 22 is first turned so that the two pressing blocks 23 do not press the two side edges 111 of the adjustment groove 11. Then, the connecting assembly 2 can slide up and down in the adjustment groove 11 with the backrest board 3. After adjusting to any desired height, the reset knob 22 is turned again so that the two pressing blocks 23 press the two side edges 111 of the adjustment groove 11 again, thereby achieving the positioning and fixation of the connecting assembly 2 and the backrest board 3. The utility model is simple and convenient to operate. Only the knob 22 is needed to control the matching relationship between the connecting assembly 2 and the adjustment groove 11. The two pressing blocks 23 can be fixed at any height position in the adjustment groove 11. The sliding and fixing are quick and convenient, which can improve the user's experience in adjusting the backrest board 3.

[0071] like Figure 4 and Figure 5 As shown, the left and right ends of the adjustment portion 21 of this embodiment can be respectively provided with vertically extending clamping grooves 24; the two side edges 111 of the adjustment groove 11 respectively extend into the clamping grooves 24 on the same side for forward and backward positioning, and can move up and down relative to the clamping grooves 24. The provision of the clamping grooves 24 can improve the sliding stability of the connecting assembly 2 and prevent the connecting assembly 2 from detaching from the bracket 1.

[0072] In this embodiment, the two pressing blocks 23 are respectively slidably assembled on the left and right sides of the adjustment portion 21; the outer end of the pressing block 23 has a pressing portion 231, which is movable against the side 111 of the adjustment groove 11, and the inner end of the pressing block 23 has a circular arc convex surface 232; the pressing portion 231 can be made of a flexible material to fit tightly against the side 111 of the adjustment groove 11 to improve the tight fit effect.

[0073] The knob 22 is rotatably mounted on the adjusting portion 21, and the knob body 221 of the knob 22 is located between the inner ends of the two pressing blocks 23; the outer circumference of the knob body 221 is provided with two linkage parts 222 at intervals of 180 degrees, and each linkage part 222 includes a convex part 2221 and a concave part 2222 distributed adjacent to each other in the circumferential direction; and a tension spring 25 is connected between the two pressing blocks 23, and the tension spring 25 provides elastic force to make the inner end of the pressing block 23 press against the linkage part 23. Thus, when the knob 22 is rotated so that the convex parts 2221 of the two linking parts 222 simultaneously abut against the arc convex surfaces 232 of the two pressing blocks 23, the pressing part 231 of the pressing block 23 presses the side 111 of the adjustment groove 11; when the knob 22 is rotated so that the concave parts 2222 of the two linking parts 222 simultaneously abut against the annular convex surfaces of the two pressing blocks 23, the pressing part 231 of the pressing block 23 releases the pressure on the side 111 of the adjustment groove 11.

[0074] The tension spring 25 provides elastic force to bring the two clamping blocks 23 closer to each other, and the protrusions 2221 of the two connecting parts of the knob 22 are just located between the two clamping blocks 23, providing a reverse supporting force, so that the two clamping blocks 23 can press the side 111 of the adjustment groove 11 to prevent the connecting component 2 from slipping out of the adjustment groove 11.

[0075] The arc convex surface 232 of the pressing block 23 is convenient for sliding cooperation with the linkage portion 222 , so that the rotation of the knob 22 can be converted into left and right sliding of the pressing block 23 through the convex portion 2221 and the concave portion 2222 .

[0076] See also Figure 7 and Figure 8 The adjusting portion 21 includes an adjusting body 211 and an adjusting rear shell 212 ; the adjusting rear shell 212 covers the rear side of the adjusting body 211 , and the two can be fixed by screws.

[0077] A mounting chamber 213 is provided between the adjustment rear shell 212 and the adjustment main body 211 ; and the clamping grooves 24 are formed between the left and right sides of the adjustment rear shell 212 and the rear side of the adjustment main body 211 .

[0078] The knob body 221 of the knob 22 is rotatably mounted in the middle of the mounting chamber 213 , and the rear side of the knob body 221 has a rotating handle 223 exposed on the rear side of the adjustment rear shell 212 ; so that the user can conveniently pinch the rotating handle 223 to rotate the knob 22 .

[0079] The two pressing blocks 23 are respectively installed in the slide grooves 214 on the left and right sides of the installation chamber 213; the tension spring 25 is located in front of the knob 22, and the two ends of the tension spring 25 are respectively connected to the hook portion 233 protruding forward in the middle of the pressing block 23.

[0080] A rotation slot 215 is provided on the back of the adjustment body 211 within the mounting chamber 213. A rotation portion 224 is provided in the middle of the front portion of the knob body 221. The rotation portion 224 can be rotatably inserted into the rotation slot 215. The outer periphery of the rotation slot 215 is provided with two stopper plates 216 spaced 180 degrees apart. The outer periphery of the rotation portion 224 of the knob body 221 also has two stopper slots 225 spaced 180 degrees apart in the circumferential direction. The two stopper plates 216 are respectively located within the two stopper slots 225. In this embodiment, the stopper slots 225 are formed between two stoppers 2251 protruding from the front of the rotation portion 224.

[0081] When the limiting plate 216 abuts against the stoppers 2251 at the two circumferential ends of the limiting groove 225, the convex portion 2221 of the linkage portion 222 abuts against the pressing block 23, and the concave portion 2222 of the linkage portion 222 abuts against the pressing block 23. That is, when the knob 22 rotates, the cooperation between the limiting plate 216 and the limiting groove 225 can prevent the knob 22 from rotating excessively, so that the knob 22 can only rotate back and forth within the range of the limiting groove 225, ensuring that the contact point between the linkage portion 222 and the pressing block 23 switches back and forth between the convex portion 2221 and the concave portion 2222. For example, see Figure 5 In the state shown, the protrusion 2221 of the linkage part 222 abuts against the pressing block 23, and the limit plate 216 abuts against one end of the limit groove 225 in the counterclockwise direction. When the knob 22 is controlled to rotate counterclockwise so that the groove of the linkage part 222 abuts against the pressing block 23, the limit plate 216 should abut against the first end of the limit groove 225 in the clockwise direction.

[0082] In this embodiment, a vertically extending wavy structure 112 is provided on the side 111 of the adjustment groove 11 , and the wavy structure 112 is used to tightly fit with the end of the pressing block 23 to improve the fixing and positioning effect of the connecting component 2 and the adjustment groove 11 .

[0083] In this embodiment, the bracket 1 is a frame-shaped independent structure, and the middle part of the frame is the adjustment slot 11; and the bracket 1 can be detachably connected to the backrest of the seat itself through a strap (not shown) as an accessory.

[0084] Of course, the bracket 1 can also be designed to be integrally connected to the seat, that is, the backrest structure of the present invention directly serves as the backrest of the seat.

[0085] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, equivalent changes and modifications that do not depart from the principles of the present invention should still fall within the scope of protection of the present invention.

[0086] In the description of the embodiments of the present application, it should be understood that the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is conventionally placed when in use, or is the orientation or position relationship conventionally understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, and does 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 application.

[0087] In the description of the embodiments of the present application, it should also be noted that, unless otherwise expressly specified or limited, the terms "set," "install," "connect," and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be mechanically connected, electrically connected, or capable of mutual communication; they can be directly connected, or indirectly connected through an intermediate medium, and can be internal communication between two elements or an interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0088] In addition, this application provides examples of various specific processes and materials, but a person skilled in the art may recognize the application of other processes and / or the use of other materials.

Claims

1. A quickly disassembled ergonomic backrest, characterized by: Includes bracket and backrest panel; A connecting portion is provided on the front side of the bracket; The backrest plate is detachably connected to the connecting portion via a connecting cantilever; The connecting portion has a connecting chamber in it, and one side of the connecting chamber has a slot communicating with the outside world; The front end of the connecting cantilever is connected to the backrest plate, and the rear end of the connecting cantilever is provided with an inserting piece, and the inserting piece is detachably inserted and fixed in the slot.

2. The ergonomic backrest capable of rapid disassembly and assembly according to claim 1, characterized in that: A rotatable pressure plate is installed in the connecting chamber, one end of the pressure plate is a locking hook, and the locking hook is located in the connecting chamber; the other end of the pressure plate is a pressing part, which extends out of the connecting chamber and is connected to a spring. The spring provides elastic force to enable the pressing part to drive the locking hook to rotate and lock the plug.

3. The ergonomic backrest capable of rapid disassembly and assembly according to claim 2, characterized in that: The inserting piece is provided with an inserting hole; a locking block is protruded from the locking hook portion, and the locking block is movably inserted into the inserting hole of the inserting piece located in the slot.

4. The ergonomic backrest capable of rapid disassembly and assembly according to claim 2, characterized in that: There are two backrest boards distributed on the left and right, and the front side of the corresponding bracket is provided with two connecting parts distributed on the left and right; The bracket is provided with a connecting component, and the two connecting parts are respectively provided at the left and right ends of the front side of the connecting component; The connecting portion includes a connecting body and a connecting front cover. The connecting front cover covers the front side of the connecting body, and the connecting chamber is formed between the connecting front cover and the connecting body.

5. The ergonomic backrest capable of rapid disassembly and assembly according to claim 4, characterized in that: The connecting front cover is covered on the outer side of the connecting body away from the other connecting body, and a spring groove is provided on the inner side of the connecting body; the pressing portion of the pressure plate is located at the front side of the spring groove; the spring is installed in the spring groove, and the two ends of the spring respectively abut against the bottom of the spring groove and the rear side of the pressing portion.

6. The quickly detachable ergonomic backrest according to claim 3, characterized in that: A rotating shaft is provided between the locking hook portion and the pressing portion of the pressing plate, and the rotating shaft is rotatably installed in the connecting chamber; and a side of the locking block close to the slot opening is provided with an inclined surface.

7. The quickly detachable ergonomic backrest according to claim 1, characterized in that: The backrest plate comprises a frame plate and a flexible cushion; the rear side of the frame plate is connected to the connecting cantilever; and the flexible cushion is detachably arranged on the front side of the frame plate.

8. The quickly detachable ergonomic backrest according to claim 7, characterized in that: The frame plate is provided with clamping holes around each other; the upper and lower parts of the flexible cushion are respectively covered with connecting pieces, and the left and right sides of the connecting piece are respectively provided with clamping columns extending out from the rear side of the flexible cushion, and each clamping column is detachably inserted into each clamping hole.

9. The quickly detachable ergonomic backrest according to claim 7, characterized in that: A vibration motor is provided on the backrest plate; the connecting cantilever is a spring structure; the frame plate has a structure with a concave middle portion and a plurality of hollow holes are provided on the frame plate; the vibration motor is fixed to the rear side of the flexible cushion and is located in one of the hollow holes of the frame plate.

10. The quickly detachable ergonomic backrest according to claim 4, characterized in that: An adjustment slot extending up and down is provided in the middle of the bracket; an adjustment portion is provided on the rear side of the connecting assembly; The left and right ends of the adjusting portion are respectively matched with the front and rear limit edges of the left and right sides of the adjusting slot, and the adjusting portion can slide back and forth or be positioned and fixed in the adjusting slot; A knob is provided on the back of the adjustment part, and two pressing blocks are respectively provided on the left and right sides of the knob; when the knob is rotated, the two pressing blocks slide on the left and right ends of the adjustment part to flexibly press the two sides of the adjustment slot.

Images