Armrest backrest structure

Abstract

The utility model provides an armrest backrest structure which comprises a backrest, two annular connecting blocks and two armrests, the bottoms of the two sides of the backrest are both fixedly provided with the annular connecting blocks, the side faces of the two annular connecting blocks are both fixedly provided with the armrests, and the backrest comprises a front backup plate, a first middle reinforcing plate, a second middle reinforcing plate and a rear backup plate. An L-shaped fixing block is fixedly installed at the bottom of the front face of the rear backup plate, and a reinforcing supporting block is fixedly installed on the surface of the L-shaped fixing block. According to the armrest backrest, the first middle reinforcing plate and the second middle reinforcing plate which are arranged in the armrest backrest are matched, so that the structural strength of the backrest is effectively improved, the bearing capacity of the backrest is improved, the safety of a rear seat of an electric vehicle is improved, and the armrest is assembled and connected with the annular connecting block through the connecting part; and the locking columns and the locking nuts are assembled in a matched manner, so that the convenience of mounting and dismounting between the armrests and the backrest is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric vehicle accessories and relates to an armrest and backrest structure. Background Art

[0002] Electric vehicles are one of the important means of transportation for people nowadays. The armrest backrest is one of the important components of electric vehicles. By installing armrest backrests on the seats of electric vehicles, the safety of pedestrians in the back row can be facilitated.

[0003] After searching, it was found that according to the publication number "CN221698878U", an electric vehicle armrest backrest was disclosed, including: a backrest body, the inner surface of the backrest body is fixedly connected to a mounting tube, the inner surface of the mounting tube is threadedly connected to a connecting screw. By arranging the backrest body, connecting screws, mounting tubes, and backrest brackets, the backrest armrest structure is simple and the structures are easy to install and disassemble.

[0004] The above-mentioned armrest backrest is convenient for disassembly and assembly between structures by means of screws. However, during the use of the above-mentioned armrest backrest, we found that the backrest is only designed with a single-layer structure, and the structural strength of the backrest is weak. When the rear seat occupant exerts a large pressure backward, the armrest backrest is easily damaged, which affects the service life of the armrest backrest. For this reason, we designed an armrest backrest structure to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present utility model is to provide an armrest and backrest structure to solve the problems raised in the above background technology.

[0006] The objectives of the utility model can be achieved through the following technical solutions: an armrest backrest structure, comprising a backrest, two annular connecting blocks and two armrests, annular connecting blocks are fixedly provided at the bottom of both sides of the backrest, and armrests are fixedly installed on the sides of the two annular connecting blocks, the backrest comprises a front backrest, a first intermediate reinforcement plate, a second intermediate reinforcement plate and a rear backrest, an L-shaped fixing block is fixedly installed at the bottom of the front of the rear backrest, a reinforcement support block is fixedly installed on the surface of the L-shaped fixing block, the front of the rear backrest is buckled and fixed with the second intermediate reinforcement plate, the two sides of the second intermediate reinforcement plate are connected as a whole with the annular connecting blocks, the front of the second intermediate reinforcement plate is fixed with the first intermediate reinforcement plate, and the front of the first intermediate reinforcement plate is fixed with the front backrest.

[0007] In the above-mentioned armrest backrest structure, a plurality of buckle blocks are fixedly provided at equal intervals on the front side of the rear backrest plate, a plurality of buckle grooves are opened at equal intervals on the front side of the second intermediate reinforcement plate, and the plurality of buckle blocks are buckled and connected with the corresponding buckle grooves.

[0008] In the above-mentioned armrest backrest structure, a plurality of second assembly screw sleeves are equidistantly fixed to the middle of the second intermediate reinforcement plate, a plurality of first assembly screw sleeves are equidistantly fixed to the middle of the first intermediate reinforcement plate, an assembly bolt is threadedly connected between the second assembly screw sleeve and the first assembly screw sleeve, and evenly distributed reinforcing ribs are fixed to the middle of the second intermediate reinforcement plate and the first intermediate reinforcement plate.

[0009] In the above-mentioned armrest backrest structure, a plurality of slots are provided at the edge of the front backrest plate, and a plurality of blocks are fixedly provided at equal intervals at the edge of the rear backrest plate, and the plurality of blocks are engaged and connected with the corresponding slots.

[0010] In the above-mentioned armrest backrest structure, the armrest consists of a handholding portion and a connecting portion, the rear end portion of the handholding portion is fixedly provided with a connecting portion that is integrated therewith, a circular sleeve is fixedly provided at the center of the connecting portion, a locking column is fixedly provided at the center of the circular sleeve, arc-shaped limit grooves are provided on both sides of the circular sleeve, and two positioning holes are provided between the two arc-shaped limit grooves.

[0011] In the above-mentioned armrest backrest structure, the annular connecting block includes an arc-shaped limit block, two springs and a circular sleeve hole. The circular sleeve column is nested and connected with the circular sleeve hole, and the circular sleeve hole is a convex structure. A locking nut is threadedly connected between the circular sleeve hole and the locking column. Arc-shaped limit blocks are fixed on both sides of the circular sleeve hole. The two arc-shaped limit blocks are nested into the corresponding arc-shaped limit grooves. Two springs are fixed between the two arc-shaped limit blocks, and one end of the two springs is nested into the inside of the positioning hole.

[0012] Compared with the prior art, the advantages of the armrest and backrest structure of the utility model are:

[0013] 1. The armrest backrest effectively improves the structural strength of the backrest through the cooperation of the first middle reinforcement plate and the second middle reinforcement plate arranged inside, thereby increasing the bearing capacity of the backrest and improving the safety of the rear seat of the electric vehicle.

[0014] 2. The armrest is assembled and connected between the connecting portion and the annular connecting block, and is assembled through the cooperation of the locking column and the locking nut, which improves the convenience of installation and disassembly between the armrest and the backrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural diagram of an armrest and backrest structure.

[0016] Figure 2 The utility model is a front structural diagram of an armrest and backrest structure.

[0017] Figure 3It is a side structural diagram of an armrest and backrest structure of the utility model.

[0018] Figure 4 This is a schematic structural diagram of a first middle reinforcement plate of an armrest and backrest structure of the utility model.

[0019] Figure 5 This is a schematic structural diagram of a second middle reinforcement plate of an armrest and backrest structure of the present invention.

[0020] Figure 6 This is a schematic diagram of the front structure of a second middle reinforcement plate of an armrest and backrest structure of the utility model.

[0021] Figure 7 The utility model is a schematic diagram of the local structure of the connection between the armrest and the annular connecting block of the armrest and backrest structure.

[0022] In the figure, 1. backrest; 2. annular connecting block; 201. arc-shaped limit block; 202. spring; 203. circular sleeve hole; 3. armrest; 301. handhold; 302. connecting part; 303. arc-shaped limit groove; 304. circular sleeve column; 305. locking column; 306. positioning hole; 4. L-shaped fixing block; 5. reinforcement support block; 6. front leaning plate; 7. first middle reinforcement plate; 8. rear leaning plate; 9. reinforcement rib; 10. first assembly screw sleeve; 11. second middle reinforcement plate; 12. buckle groove; 13. buckle block; 14. second assembly screw sleeve; 15. assembly bolt. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] like Figure 1-7 As shown, the utility model provides an armrest backrest structure, comprising a backrest 1, two annular connecting blocks 2 and two armrests 3, annular connecting blocks 2 are fixedly provided at the bottom of both sides of the backrest 1, and armrests 3 are fixedly installed on the sides of the two annular connecting blocks 2, the backrest 1 comprises a front backrest 6, a first intermediate reinforcement plate 7, a second intermediate reinforcement plate 11 and a rear backrest 8, an L-shaped fixing block 4 is fixedly installed at the bottom of the front face of the rear backrest 8, a reinforcement support block 5 is fixedly installed on the surface of the L-shaped fixing block 4, the front face of the rear backrest 8 is buckled and fixed with the second intermediate reinforcement plate 11, both sides of the second intermediate reinforcement plate 11 are connected as a whole with the annular connecting blocks 2, the front face of the second intermediate reinforcement plate 11 is fixed with the first intermediate reinforcement plate 7, and the front face of the first intermediate reinforcement plate 7 is fixed with the front backrest 6.

[0025] Specifically, the armrest backrest effectively improves the structural strength of the backrest 1 through the cooperation of the first intermediate reinforcement plate 7 and the second intermediate reinforcement plate 11 provided inside, thereby improving the bearing capacity of the backrest 1 and improving the safety of the rear seat of the electric vehicle.

[0026] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the utility model provides an armrest backrest structure, a plurality of buckle blocks 13 are fixedly provided at equal intervals on the front side of the rear backrest plate 8, a plurality of buckle grooves 12 are opened at equal intervals on the front side of the second intermediate reinforcement plate 11, and the plurality of buckle blocks 13 are buckled and connected with the corresponding buckle grooves 12.

[0027] A plurality of second assembly screw sleeves 14 are equidistantly fixed to the middle of the second intermediate reinforcement plate 11, and a plurality of first assembly screw sleeves 10 are equidistantly fixed to the middle of the first intermediate reinforcement plate 7. An assembly bolt 15 is threadedly connected between the second assembly screw sleeve 14 and the first assembly screw sleeve 10, and evenly distributed reinforcement ribs 9 are fixed to the middle of the second intermediate reinforcement plate 11 and the first intermediate reinforcement plate 7.

[0028] Specifically, the structural strength of the backrest 1 is increased by providing the reinforcing ribs 9 .

[0029] A plurality of card slots are provided at the edge of the front back plate 6 , and a plurality of card blocks are fixedly provided at equal intervals at the edge of the rear back plate 8 , and the plurality of card blocks are engaged with the corresponding card slots.

[0030] Specifically, the cooperation between the clamping block and the clamping slot facilitates the assembly between the front backboard 6 and the rear backboard 8 .

[0031] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the utility model provides an armrest and backrest structure, the armrest 3 consists of a handholding portion 301 and a connecting portion 302, the rear end portion of the handholding portion 301 is fixedly provided with a connecting portion 302 that is connected as one body, a circular sleeve 304 is fixedly provided at the center of the connecting portion 302, a locking column 305 is fixedly provided at the center of the circular sleeve 304, arc-shaped limiting grooves 303 are provided on both sides of the circular sleeve 304, and two positioning holes 306 are provided between the two arc-shaped limiting grooves 303.

[0032] The annular connecting block 2 includes an arc-shaped limit block 201, two springs 202 and a circular sleeve 203. The circular sleeve column 304 is nested and connected with the circular sleeve 203, and the circular sleeve 203 is a convex structure. A locking nut is threadedly connected between the circular sleeve 203 and the locking column 305. Arc-shaped limit blocks 201 are fixed on both sides of the circular sleeve 203. The two arc-shaped limit blocks 201 are nested into the corresponding arc-shaped limit grooves 303. Two springs 202 are fixed between the two arc-shaped limit blocks 201, and one end of the two springs 202 is nested into the inside of the positioning hole 306.

[0033] Specifically, the circular sleeve column 304 is nested with the circular sleeve hole 203 and is locked with the locking nut by the locking column 305, so as to facilitate the assembly of the handrail 3 and the annular connecting block 2.

[0034] In specific implementation, when assembling the armrest backrest, first fix the L-shaped fixing block 4 to the front bottom of the rear backrest plate 8 by bolts, then fix the reinforcement support block 5 to the surface of the L-shaped fixing block 4, thereby improving the structural strength of the L-shaped fixing block 4, and then fix the second intermediate reinforcement plate 11 by the cooperation of the buckle block 13 and the buckle groove 12, and then put the connecting part 302 of the two armrests 3 to the middle of the two annular connecting blocks 2, and lock it with the locking nut to complete the assembly of the armrest 3, and then fix the first intermediate reinforcement plate 7 to the second intermediate reinforcement plate 11 by the assembly bolts 15, and then fix the front backrest 6 and the rear backrest 8 at the edge to complete the assembly of the armrest backrest, and then fix it to the child car seat through the bottom of the L-shaped fixing block 4 to complete the assembly of the armrest backrest. The armrest backrest improves the structural strength of the armrest backrest through the cooperation of the first intermediate reinforcement plate 7 and the second intermediate reinforcement plate 11.

[0035] Matters not described in detail in this specification constitute prior art known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art to which the present invention relates may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. An armrest backrest structure, comprising a backrest (1), two annular connecting blocks (2) and two armrests (3), wherein the bottoms of both sides of the backrest (1) are fixedly provided with annular connecting blocks (2), and the sides of the two annular connecting blocks (2) are fixedly provided with armrests (3), characterized in that: The backrest (1) comprises a front backrest plate (6), a first intermediate reinforcement plate (7), a second intermediate reinforcement plate (11) and a rear backrest plate (8); an L-shaped fixing block (4) is fixedly installed on the bottom of the front of the rear backrest plate (8); a reinforcement support block (5) is fixedly installed on the surface of the L-shaped fixing block (4); a second intermediate reinforcement plate (11) is fixedly provided on the front of the rear backrest plate (8); both sides of the second intermediate reinforcement plate (11) are connected to the annular connection block (2) as a whole; the first intermediate reinforcement plate (7) is fixedly provided on the front of the second intermediate reinforcement plate (11); and the front of the first intermediate reinforcement plate (7) is fixedly provided on the front of the front backrest plate (6).

2. The armrest backrest structure according to claim 1, characterized in that: A plurality of buckle blocks (13) are fixedly provided at equal intervals on the front side of the rear backrest plate (8), a plurality of buckle slots (12) are provided at equal intervals on the front side of the second intermediate reinforcement plate (11), and the plurality of buckle blocks (13) are buckled and connected with the corresponding buckle slots (12).

3. The armrest backrest structure according to claim 2, characterized in that: A plurality of second assembly screw sleeves (14) are fixedly provided at equal intervals in the middle of the second intermediate reinforcement plate (11), a plurality of first assembly screw sleeves (10) are fixedly provided at equal intervals in the middle of the first intermediate reinforcement plate (7), an assembly bolt (15) is threadedly connected between the second assembly screw sleeves (14) and the first assembly screw sleeves (10), and uniformly distributed reinforcing ribs (9) are fixedly provided in the middle of the second intermediate reinforcement plate (11) and the first intermediate reinforcement plate (7).

4. The armrest backrest structure according to claim 1, characterized in that: A plurality of card slots are provided at the edge of the front backboard (6), and a plurality of card blocks are fixedly provided at equal intervals at the edge of the rear backboard (8), and the plurality of card blocks are engaged and connected with the corresponding card slots.

5. The armrest backrest structure according to claim 1, characterized in that: The armrest (3) is composed of a handholding portion (301) and a connecting portion (302); the rear end of the handholding portion (301) is fixedly provided with an integral connecting portion (302); a circular sleeve (304) is fixedly provided at the center of the connecting portion (302); a locking column (305) is fixedly provided at the center of the circular sleeve (304); arc-shaped limiting grooves (303) are provided on both sides of the circular sleeve (304); and two positioning holes (306) are provided between the two arc-shaped limiting grooves (303).

6. The armrest backrest structure according to claim 5, characterized in that: The annular connecting block (2) comprises an arc-shaped limiting block (201), two springs (202) and a circular sleeve hole (203); the circular sleeve column (304) is nested and connected with the circular sleeve hole (203), and the circular sleeve hole (203) is a convex structure; a locking nut is threadedly connected between the circular sleeve hole (203) and the locking column (305); arc-shaped limiting blocks (201) are fixed on both sides of the circular sleeve hole (203); the two arc-shaped limiting blocks (201) are nested in the corresponding arc-shaped limiting grooves (303); two springs (202) are fixed between the two arc-shaped limiting blocks (201), and one end of the two springs (202) is nested in the interior of the positioning hole (306).

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