Automobile backrest with filler convenient to replace

Abstract

The utility model discloses an automobile backrest with filler convenient to replace, and belongs to the field of automobile backrests, the automobile backrest comprises a cushion, the outer side of the cushion is rotatably connected with a backrest body, the inner side of the backrest body is provided with a cavity, the inner wall of the cavity is provided with a mounting groove and a positioning groove, the inner cavity of the cavity is filled with a filler body, and the filler body is arranged in the cavity. An electromagnetic block and a positioning strip are fixedly assembled on the outer side of the filler body, and a placement groove is formed in the outer side of the backrest body; the wrapping layer is pulled until the hook-and-loop fastener on the inner side of the wrapping layer is separated from the hook-and-loop fastener on the inner wall of the containing groove, then magnetism of the electromagnetic block can be eliminated, then the adsorption force between the electromagnetic block and the cushion is cut off, and meanwhile the filler body can be pulled to take out the filler body which loses resilience force after deformation to the outside for replacement. The problems that the cost is high and the operation is inconvenient due to the fact that the whole seat is directly replaced or the backrest of the seat is detached for replacement are solved, and the practicability of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile backrests, and in particular to an automobile backrest with convenient replacement of fillers. Background Art

[0002] A car seat is a seat that you sit in when you ride in a car. A car seat should provide a driving and riding position that is easy to operate, comfortable and safe. It is necessary to maintain the normal operation and comfort of the car seat.

[0003] In the patent with the published authorization announcement number CN219133932U, the detachable car seat backrest belongs to the field of car seats, and includes a base and a seat backrest device. The seat backrest device includes a backrest base connected to the rear end of the base, a pair of third slide grooves are opened on the rear end surface of the backrest base, and grooves are opened on both sides of the lower end of the third slide groove. The upper end surface of the backrest base is connected to the first backrest through a rotating shaft, and a first slide groove matching the third slide groove is opened on the rear end surface of the first backrest. The first backrest is mortised with the second backrest, and a second slide groove matching the position of the first slide groove is opened on the end surface of the second backrest. A limiting block is connected between the third slide groove and the second slide groove, and a cavity and a slideway are opened at the lower end of the limiting block, and the cavity and the slideway are connected. Two blocks are arranged in the cavity, and the blocks are connected by springs, so that the car seat backrest can be easily disassembled, which reduces the operation difficulty during the disassembly process and also reduces the time cost.

[0004] The above device can realize the convenient disassembly of the car seat back when implemented, but both methods of replacing the entire seat or disassembling the seat back for replacement have the problems of high cost and inconvenient operation. In addition, frequent disassembly of the seat back will reduce the stability of the connection between it and the car body, which is not conducive to promotion and use. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a car backrest with convenient replacement of fillers, which overcomes the deficiencies of the prior art and aims to solve the problems in the background technology.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a car backrest with convenient replacement of fillings, comprising a seat cushion, the outer side of the seat cushion is rotatably connected to a backrest body, the inner side of the backrest body is provided with a cavity, the inner wall of the cavity is respectively provided with an installation groove and a positioning groove, the inner cavity of the cavity is filled with a filling body, the outer side of the filling body is fixedly equipped with an electromagnetic block and a positioning strip, the outer side of the backrest body is provided with a placement groove, the inner wall of the placement groove is inlaid with Velcro, the outer side of the Velcro is bonded with a wrapping layer, and the outer side of the wrapping layer is fixedly equipped with anti-slip patterns.

[0007] As a preferred embodiment, the seat cushion is made of magnetic material, the electromagnetic block is arranged on the inner wall of the mounting groove, the number of the electromagnetic block and the mounting groove are four, and the four mounting grooves and the electromagnetic block are symmetrically arranged on the inner wall of the seat cushion.

[0008] By adopting the above technical solution, the electromagnetic block can be stably positioned on the inner wall of the installation groove using the magnetic attraction principle, and the filler body can be stably installed on the inner wall of the cavity, thereby ensuring the stability of the filler body after installation.

[0009] As a preferred embodiment, the positioning strip is inserted into the inner wall of the positioning groove, the size of the positioning strip is matched with the inner wall size of the positioning groove, the number of the positioning strips and the positioning grooves are two, and the two positioning strips and the positioning grooves are symmetrically arranged on the inner wall of the seat cushion, and the positioning strip is made of silicone.

[0010] By adopting the above technical solution, after the positioning strip is positioned to the inner wall of the positioning groove, it can be ensured that the filler body is accurately placed on the inner wall of the cavity, and the filler body will not be in a twisted state when it is on the inner wall of the cavity. When the positioning strip is not completely installed to the inner wall of the positioning groove, the outer side of the filler body will be higher than the outer side of the cushion, which can alert the staff that the filler body is not installed in place and needs to be reworked and installed.

[0011] As a preferred embodiment, the distance between the outer side of the Velcro and the outer side of the cushion is 0.5 cm, the side of the wrapping layer close to the Velcro is also fixedly equipped with Velcro, and the two Velcros are fitted together, and the side of the wrapping layer away from the anti-slip pattern is fitted together with the outer edge of the backrest body.

[0012] By adopting the above technical solution, the wrapping layer can be stably installed to the outer edge of the seat cushion using two Velcro strips. The installation is very convenient and no auxiliary tools are required. At the same time, the wrapping layer can be easily removed for cleaning and maintenance.

[0013] As a preferred embodiment, the anti-slip pattern is made of composite fiber, the number of the anti-slip patterns is several, and the several anti-slip patterns are evenly distributed on the outer side of the wrapping layer.

[0014] By adopting the above technical solution, the comfort of the user's back against the outside of the wrapping layer can be increased, and the user will not slide downward at will, thereby increasing the friction.

[0015] As a preferred embodiment, the size of the Velcro is matched with the inner wall size of the accommodating groove.

[0016] By adopting the above technical solution, it is possible to ensure that the Velcro is installed on the inner wall of the mounting groove, and the neatness is increased, and it is ensured that no excess fabric spreads to the outside and affects the aesthetics.

[0017] Beneficial effects of this application:

[0018] 1. A car backrest that is convenient for replacing fillings, by pulling the wrapping layer until the Velcro on the inner side of the wrapping layer is separated from the Velcro on the inner wall of the mounting groove, the magnetism of the electromagnetic block can be eliminated to cut off the adsorption force between the electromagnetic block and the seat cushion, and at the same time the filling body can be pulled to take out the filling body that has been deformed and lost its resilience to replace it, thus solving the problems of high cost and inconvenient operation of directly replacing the entire seat or disassembling the seat back for replacement, and improving the practicality of the device.

[0019] 2. The car backrest with convenient replacement of filling material makes it easy to install and remove the wrapping layer from the outer edge of the backrest body by arranging Velcro, so that the wrapping layer can be removed at any time for cleaning, thereby improving the convenience of replacing and cleaning the wrapping layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of this application;

[0021] Figure 2 This is a schematic diagram of the wrapping layer structure of this application;

[0022] Figure 3 This is a schematic diagram of the expanded structure of this application;

[0023] Figure 4 This is a schematic diagram of the positioning bar structure of this application.

[0024] Numbers in the figure: 1. Seat cushion; 2. Backrest body; 3. Cavity; 4. Installation groove; 5. Positioning groove; 6. Filler body; 7. Electromagnetic block; 8. Positioning strip; 9. Placement groove; 10. Velcro; 11. Wrapping layer; 12. Anti-slip pattern. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0026] Reference Figure 1-4A car backrest with convenient replacement of fillings comprises a seat cushion 1, the outer side of the seat cushion 1 is rotatably connected with a backrest body 2, the inner side of the backrest body 2 is provided with a cavity 3, the inner wall of the cavity 3 is respectively provided with a mounting groove 4 and a positioning groove 5, the inner cavity of the cavity 3 is filled with a filling body 6, the outer side of the filling body 6 is fixedly equipped with an electromagnetic block 7 and a positioning strip 8, the outer side of the backrest body 2 is provided with a placement groove 9, the inner wall of the placement groove 9 is inlaid with a Velcro 10, the outer side of the Velcro 10 is bonded with a wrapping layer 11, and the outer side of the wrapping layer 11 is fixedly equipped with an anti-slip pattern 12.

[0027] See also Figure 3 and Figure 4 The seat cushion 1 is made of magnetic material, and the electromagnetic block 7 is arranged on the inner wall of the mounting groove 4. The number of the electromagnetic blocks 7 and the mounting grooves 4 are four, and the four mounting grooves 4 and the electromagnetic blocks 7 are symmetrically arranged on the inner wall of the seat cushion 1, so that the electromagnetic block 7 can be stably positioned on the inner wall of the mounting groove 4 by utilizing the magnetic attraction principle, and then the filler body 6 can be stably installed on the inner wall of the cavity 3, thereby ensuring the stability of the filler body 6 after installation.

[0028] See also Figure 3 and Figure 4 The positioning strip 8 is inserted into the inner wall position of the positioning groove 5, and the size of the positioning strip 8 is adapted to the inner wall size of the positioning groove 5. There are two positioning strips 8 and two positioning grooves 5, and the two positioning strips 8 and the positioning groove 5 are symmetrically arranged on the inner wall position of the cushion 1. The positioning strip 8 is made of silicone, so that after the positioning strip 8 is positioned at the inner wall position of the positioning groove 5, it can be ensured that the filler body 6 is accurately placed on the inner wall position of the cavity 3, and it can be ensured that the filler body 6 will not be in a twisted state when it is at the inner wall position of the cavity 3. When the positioning strip 8 is not completely installed to the inner wall position of the positioning groove 5, the outer side of the filler body 6 will be higher than the outer side of the cushion 1. At this time, it can be warned that the filler body 6 is not installed in place and needs to be reworked and installed.

[0029] See also Figure 2 and Figure 4 The distance between the outer side of the Velcro 10 and the outer side of the cushion 1 is 0.5 cm, and the side of the wrapping layer 11 close to the Velcro 10 is also fixedly equipped with the Velcro 10, and the two Velcros 10 are in contact with each other, and the side of the wrapping layer 11 away from the anti-slip pattern 12 is in contact with the outer edge of the backrest body 2, so that the wrapping layer 11 can be stably installed to the outer edge of the cushion 1 by using the two Velcros 10. The installation is very convenient and no auxiliary tools are required. At the same time, it is convenient to remove the wrapping layer 11 for cleaning and maintenance.

[0030] See also Figure 1The anti-slip pattern 12 is made of composite fiber, the number of the anti-slip patterns 12 is several, and the several anti-slip patterns 12 are evenly distributed on the outer side of the wrapping layer 11, so that the comfort of the user's back against the outer side of the wrapping layer 11 can be increased, and the user will not slide down at will, thereby increasing the friction.

[0031] See also Figure 2 and Figure 3 The size of the Velcro 10 is adapted to the inner wall size of the mounting groove 9, so that the neatness of the Velcro 10 after being installed to the inner wall position of the mounting groove 9 can be increased, and no excess fabric can spread to the outside to affect the aesthetics.

[0032] Working principle: When the filler body 6 needs to be replaced, the wrapping layer 11 can be pulled first until the Velcro 10 on the inner side of the wrapping layer 11 is separated from the Velcro 10 on the inner wall of the mounting groove 9, and then the magnetism of the electromagnetic block 7 can be eliminated to cut off the adsorption force between the seat cushion 1, and at the same time, the filler body 6 can be pulled to take out the deformed and lost resilience filler body 6 to the outside for replacement. When installing a new filler body 6, the electromagnetic block 7 is first stably positioned on the inner wall of the mounting groove 4 using the magnetic attraction principle, and then the filler body 6 is stably installed in the cavity 3. The inner wall position, positioning the positioning strip 8 to the inner wall position of the positioning groove 5, can accurately place the filler body 6 to the inner wall position of the cavity 3, to ensure that the filler body 6 is not in a twisted state when it is at the inner wall position of the cavity 3, and when the positioning strip 8 is not completely installed to the inner wall position of the positioning groove 5, the outer side of the filler body 6 will be higher than the outer side position of the cushion 1, at this time it can be warned that the filler body 6 is not installed in place and needs to be reworked and installed, and then the two Velcro strips 10 can be fitted together, and then the wrapping layer 11 can be stably installed to the outer edge position of the backrest body 2.

[0033] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and utility model concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A car backrest with easily replaceable filling material, comprising a seat cushion (1), characterized in that: The outer side of the seat cushion (1) is rotatably connected to a backrest body (2); a cavity (3) is provided on the inner side of the backrest body (2); an installation groove (4) and a positioning groove (5) are respectively provided on the inner wall of the cavity (3); the inner cavity of the cavity (3) is filled with a filler body (6); an electromagnetic block (7) and a positioning strip (8) are fixedly mounted on the outer side of the filler body (6); a placement groove (9) is provided on the outer side of the backrest body (2); a Velcro (10) is inlaid on the inner wall of the placement groove (9); a wrapping layer (11) is bonded to the outer side of the Velcro (10); and an anti-slip pattern (12) is fixedly mounted on the outer side of the wrapping layer (11).

2. The car backrest with convenient replacement of filling material according to claim 1, characterized in that: The seat cushion (1) is made of magnetic material, the electromagnetic block (7) is arranged on the inner wall of the mounting groove (4), the number of the electromagnetic block (7) and the number of the mounting groove (4) are both four, and the four mounting grooves (4) and the electromagnetic blocks (7) are symmetrically arranged on the inner wall of the seat cushion (1).

3. The car backrest with convenient replacement of fillers according to claim 1, characterized in that: The positioning strip (8) is plugged into the inner wall of the positioning groove (5); the size of the positioning strip (8) matches the size of the inner wall of the positioning groove (5); the number of the positioning strip (8) and the number of the positioning groove (5) are both two, and the two positioning strips (8) and the positioning groove (5) are symmetrically arranged at the inner wall of the seat cushion (1); and the positioning strip (8) is made of silica gel.

4. The car backrest with convenient replacement of fillers according to claim 1, characterized in that: The distance between the outer side of the Velcro (10) and the outer side of the seat cushion (1) is 0.5 cm, the side of the wrapping layer (11) close to the Velcro (10) is also fixedly mounted with the Velcro (10), and the two Velcros (10) fit together, and the side of the wrapping layer (11) away from the anti-slip pattern (12) fits together with the outer edge of the backrest body (2).

5. The car backrest with convenient replacement of filling material according to claim 1, characterized in that: The anti-slip grooves (12) are made of composite fibers, the number of the anti-slip grooves (12) is a plurality, and the plurality of anti-slip grooves (12) are evenly distributed at the outer side of the wrapping layer (11).

6. The car backrest with convenient replacement of fillers according to claim 1, characterized in that: The size of the Velcro (10) is compatible with the size of the inner wall of the placement groove (9).

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