Connecting mechanism for backrest and armrest of electric vehicle

Abstract

The utility model provides a connecting mechanism for a backrest and armrests of an electric vehicle. The connecting mechanism comprises a backrest body and two armrest strips, and two annular mounting seats are located at the two ends of the bottom of the backrest body and connected with the two armrest strips through connecting assemblies; the connecting assembly comprises two spring sections, two annular embedded blocks, two decorative sealing covers and two hexagonal studs, integrally-formed bent arm rods are arranged at the ends of the two handrail strips, integrally-formed connecting ring cylinders are arranged at the ends of the two bent arm rods, the two connecting ring cylinders are correspondingly connected with the two annular mounting seats, and the two annular mounting seats are connected with the two annular embedded blocks. Due to the fact that the connecting assembly comprises the two spring sections, the two annular embedded blocks, the two decorative sealing covers and the two hexagonal studs, connection between the backrest body and the armrest strips has good connection stability and firmness, and meanwhile it can be guaranteed that the backrest body and the armrest strips have the relative adjusting effect; the seat is greatly convenient for people to sit on the back seat, and meanwhile, the people can adjust the seat by themselves conveniently when sitting on the back seat.

Description

Technical Field

[0001] This utility model belongs to the field of electric vehicle parts technology, and relates to a connection mechanism between the backrest and armrest of an electric vehicle. Background Technology

[0002] An electric vehicle backrest is a device installed on the rear seat of an electric vehicle to provide support for the passenger. Most existing electric vehicle backrests consist of a column fixed to the rear seat and a horizontal plate at the top of the column; their structure is simple and their function is singular. For example, the electric vehicle armrest backrest disclosed in patent publication number CN221698878U includes: a backrest body, an mounting cylinder fixedly connected to the inner surface of the backrest body, a connecting screw threadedly connected to the inner surface of the mounting cylinder, a backrest bracket movably connected to the outer surface of the connecting screw, a backrest sponge component movably connected to the outer surface of the backrest bracket, a slider movably connected to the inner surface of the backrest body, and a stainless steel sliding rod fixedly connected to the side surface of the slider. This solution simplifies the backrest armrest structure by setting up the backrest body, connecting screw, mounting cylinder, and backrest bracket, while facilitating installation and disassembly between the structures. When damaged, partial replacement is possible without replacing the entire armrest backrest. It can be produced separately and transported in parts, saving costs and improving transportation efficiency. By setting up the threaded head, stainless steel sliding rod, spring, slider, and armrest body, the armrest backrest can be used by rear passengers of different body widths while reducing the footprint and minimizing collisions when no one is present.

[0003] However, in the above-disclosed solutions, the connection between the handle and the backrest is achieved by using a threaded head, stainless steel slide bar, spring, slider and other structures. This has the disadvantages of low connection firmness and relatively poor adjustability. Therefore, we designed a connection mechanism between the backrest and the armrest of an electric vehicle. Summary of the Invention

[0004] The purpose of this utility model is to provide a connection mechanism between the backrest and the armrest of an electric vehicle, so as to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solution: A connection mechanism between a backrest and armrest of an electric vehicle includes a backrest body, two armrest strips, and a backrest reinforcing core plate. The backrest reinforcing core plate has multiple connection holes in its center. The backrest reinforcing core plate is installed on the inner side of the backrest body via the connection holes and screws. Two integrally formed annular mounting seats are provided at both ends of the backrest reinforcing core plate. The two annular mounting seats are located at both ends of the bottom of the backrest body and are connected to the two armrest strips via a connecting assembly. The connecting assembly includes two spring segments, two annular inserts, and two decorative seals. The cover and two hexagonal studs, each of the two handrail strips has an integrally formed bent arm at its end, and each of the two bent arm strips has an integrally formed connecting ring cylinder at its end. The two connecting ring cylinders are connected to two annular mounting seats. Each of the two connecting ring cylinders has a stud mounting seat at the middle of its front end. The two hexagonal studs pass through the corresponding stud mounting seats and are connected to the annular mounting seats. The two annular inserts are installed inside the corresponding annular mounting seats. The two spring segments are assembled inside the two annular inserts. The two decorative covers are assembled at the ends of the corresponding connecting ring cylinders.

[0006] In the aforementioned connection mechanism between the backrest and armrest of an electric vehicle, four insertion pins are provided at the edges of both decorative covers, and four fan-shaped holes arranged in a ring are provided at the center of the front end of each connecting ring cylinder, with each fan-shaped hole corresponding to one insertion pin. The purpose of this arrangement is to ensure good stability in the connection between the four decorative covers and the armrest strip by inserting the four insertion pins of the decorative covers into the corresponding four fan-shaped holes, thus reducing the risk of loosening and detachment.

[0007] In the aforementioned connection mechanism between the backrest and armrest of an electric vehicle, two symmetrical protruding blocks are provided on the outer wall surfaces of the two annular embedded blocks. An integrally formed guide groove is provided at the center of the rear end of each connecting ring cylinder, with each protruding block corresponding to each guide groove. An embedded block fixing sleeve is provided on the inner side of the two annular mounting seats, and the annular embedded block is fitted and installed on the inner side of the annular mounting seat through the embedded block fixing sleeve. The purpose of this arrangement is to install the annular embedded block between the annular mounting seat and the connecting ring cylinder, making the connecting ring cylinder and the annular mounting seat more stable with the addition of the annular embedded block, thereby ensuring a firm connection between the armrest strip and the backrest body.

[0008] In the aforementioned connection mechanism between the backrest and armrest of an electric vehicle, each decorative cover has a flange at two of its insertion pins along its edge, and each flange does not contact the annular insert block. Each decorative cover, along with its corresponding four insertion pins and two flanges, forms a single integral structure. This design ensures the decorative cover is securely mounted on the connecting ring of the armrest strip, while the integrally formed structure of the decorative cover, insertion pins, etc., ensures overall strength.

[0009] Compared with the prior art, the advantages of the connection mechanism between the backrest and armrest of the electric vehicle of this utility model are as follows: by setting the connection component including two spring segments, two annular embedded blocks, two decorative covers and two hexagonal studs, the connection between the backrest body and the armrest strip has good connection stability and firmness, while ensuring that the backrest body and the armrest strip have a relative adjustment effect, which greatly facilitates the riding of the rear seat passengers, and also makes it convenient for passengers to adjust themselves when riding the rear seat. Attached Figure Description

[0010] Figure 1 This utility model relates to a connection mechanism for the backrest and armrest of an electric vehicle. The backrest body and armrest strip are combined through the connection mechanism.

[0011] Figure 2 This is a schematic diagram of the unfolded structure of the connecting component of the connection mechanism between the backrest and the armrest of an electric vehicle according to this utility model.

[0012] Figure 3 This is a three-dimensional structural diagram of the handrail strip, a connection mechanism between the backrest and handrail of an electric vehicle according to this utility model.

[0013] Figure 4 This is a schematic diagram of the structure of two handrail strips of the connection mechanism between the backrest and handrail of an electric vehicle according to this utility model.

[0014] Figure 5 This is a three-dimensional structural diagram of a decorative cover for the connection mechanism between the backrest and armrest of an electric vehicle, according to this utility model.

[0015] Figure 6 This is a three-dimensional structural diagram of the backrest reinforcement core plate of an electric vehicle backrest and armrest connection mechanism according to this utility model.

[0016] In the diagram, 1. Backrest body; 2. Armrest strip; 3. Bending arm; 4. Annular mounting base; 5. Backrest reinforcing core plate; 6. Connecting ring cylinder; 7. Embedded block fixing sleeve; 8. Spring section; 9. Annular embedded block; 10. Decorative cover; 11. Hexagonal stud; 12. Protruding locking block; 13. Guide groove; 14. Stud mounting base; 15. Fan-shaped hole; 16. Insertion pin part; 17. Flange part; 18. Connecting hole. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this utility model relates to a connection mechanism between the backrest and the armrest of an electric vehicle.

[0019] Example 1: Including but not limited to the following structure: backrest body 1, two armrest strips 2 and backrest reinforcement core plate 5. The backrest reinforcement core plate 5 has multiple connecting holes 18 in the middle. The backrest reinforcement core plate 5 is installed on the inner side of the backrest body 1 through the connection holes 18 and screws. The two ends of the backrest reinforcement core plate 5 are provided with integrally formed annular mounting seats 4. The two annular mounting seats 4 are located at both ends of the bottom of the backrest body 1 and are connected to the two armrest strips 2 through connecting components.

[0020] As attached Figure 2 As shown, the connecting assembly includes two spring segments 8, two annular insert blocks 9, two decorative caps 10, and two hexagonal studs 11. The ends of both handrail strips 2 are each provided with an integrally formed bent arm 3, and the ends of both bent arm blocks 3 are each provided with an integrally formed connecting ring cylinder 6. The two connecting ring cylinders 6 are correspondingly connected to two annular mounting seats 4. A stud mounting seat 14 is provided at the middle of the front end of each of the two connecting ring cylinders 6. The two hexagonal studs 11 pass through the corresponding stud mounting seat 14 and connect to the annular mounting seat 4. The two annular insert blocks 9 are installed inside the corresponding annular mounting seats 4. The two spring segments 8 are assembled inside the two annular insert blocks 9, and the two decorative caps 10 are assembled at the ends of the corresponding connecting ring cylinders 6.

[0021] The design of this component ensures good connection stability and firmness between the backrest body 1 and the armrest strips, while also ensuring that the backrest body 1 and the armrest strips 2 have a relative adjustment effect, greatly facilitating the seating of passengers in the back seat and allowing passengers to adjust the back seat independently.

[0022] Example 2: Based on Example 1, in order to ensure a good connection stability between the two decorative covers and the handrail strip 2 and reduce loosening, four insertion pins 16 are provided at the edges of the two decorative covers 10. Four fan-shaped holes 15 arranged in a ring are also provided at the middle of the front end of each connecting ring cylinder 6, with each fan-shaped hole 15 corresponding to each insertion pin 16. A flange 17 is provided at two of the insertion pins 16 at the edges of each decorative cover 10, and each flange 17 does not contact the annular embedded block 9.

[0023] Furthermore, such as Figure 5 As shown, in order to ensure the overall strength of the decorative cover 10, each decorative cover 10 is integrally formed with the corresponding four insertion pins 16 and two flanges 17.

[0024] Example 3: Based on Example 1, two symmetrical protruding blocks 12 are provided on the outer wall surface of the two annular embedded blocks 9. An integrally formed guide groove 13 is provided in the middle of the rear end of each connecting ring cylinder 6, and each protruding block 12 corresponds to each guide groove 13. An embedded block fixing sleeve 7 is provided on the inner side of the two annular mounting seats 4, and the annular embedded blocks 9 are embedded and installed on the inner side of the annular mounting seats 4 through the embedded block fixing sleeve 7.

[0025] The above solution involves installing the annular embedding block 9 between the annular mounting base 4 and the connecting ring cylinder 6. The connection ring cylinder 6 and the annular mounting base 4 become more stable with the addition of the annular embedding block 9, thereby making the connection between the armrest strip 2 and the backrest body 1 more secure.

[0026] In specific implementation, when installing the left handrail 2, the annular embedding block 9 is embedded in the inner side of the annular mounting base 4 through the embedding block fixing sleeve 7. The protruding locking block 12 of the annular embedding block 9 corresponds to the guide groove 13, so that the annular embedding block 9 is installed between the annular mounting base 4 and the connecting ring cylinder 6 of the left handrail 2. The hexagonal stud 11 is installed through the corresponding stud mounting base 14 and connected to the annular mounting base 4. The two spring segments 8 are assembled inside the two annular embedding blocks 9, and the two decorative covers 10 are assembled at the ends of the corresponding connecting ring cylinder 6, so that each insertion pin part 16 is inserted into each fan-shaped hole 15 to ensure stability. The installation of the right handrail 2 is the same as the installation of the left handrail 2.

[0027] In this design, the backrest body 1 also includes a front backrest plate, a middle reinforcing plate, and a rear backrest plate. The front backrest plate and the middle reinforcing plate are fastened together by snap-fitting and bolting. The rear backrest plate is connected to the middle reinforcing plate of the front backrest plate via the backrest reinforcing core plate 5. They are assembled as shown in the attached figure by snap-fitting and bolting. Figure 1 The backrest body 1 shown has good load-bearing capacity, which improves the safety of the electric vehicle's rear seat.

[0028] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A connection mechanism between a backrest and armrests of an electric vehicle, comprising a backrest body (1), two armrest strips (2), and a backrest reinforcing core plate (5), wherein the backrest reinforcing core plate (5) has a plurality of connecting holes (18) in the middle, the backrest reinforcing core plate (5) is installed on the inner side of the backrest body (1) through the connection holes (18) and screws, and both ends of the backrest reinforcing core plate (5) are provided with integrally formed annular mounting seats (4), the two annular mounting seats (4) are located at both ends of the bottom of the backrest body (1) and are connected to the two armrest strips (2) through connecting components; characterized in that, The connecting assembly includes two spring segments (8), two annular inserts (9), two decorative caps (10), and two hexagonal studs (11). The ends of the two handrails (2) are provided with integrally formed bent arms (3), and the ends of the two bent arms (3) are provided with integrally formed connecting ring cylinders (6). The two connecting ring cylinders (6) are connected to the two annular mounting seats (4). The middle of the front end of the two connecting ring cylinders (6) is provided with stud mounting seats (14). The two hexagonal studs (11) pass through the corresponding stud mounting seats (14) and are connected to the annular mounting seats (4). The two annular inserts (9) are installed inside the corresponding annular mounting seats (4). The two spring segments (8) are assembled inside the two annular inserts (9). The two decorative caps (10) are assembled at the ends of the corresponding connecting ring cylinders (6).

2. The connection mechanism between the backrest and armrest of an electric vehicle according to claim 1, characterized in that, Each of the two decorative covers (10) has four insertion pins (16) at its edge, and each of the connecting ring cylinders (6) has four fan-shaped holes (15) arranged in a ring at the center of its front end, with each fan-shaped hole (15) corresponding to each insertion pin (16).

3. The connection mechanism between the backrest and armrest of an electric vehicle according to claim 1, characterized in that, Two symmetrical protruding blocks (12) are provided on the outer wall surface of the two annular embedded blocks (9), and an integrally formed guide groove (13) is provided in the middle of the rear end of each connecting ring cylinder (6), with each protruding block (12) corresponding to each guide groove (13).

4. The connection mechanism between the backrest and armrest of an electric vehicle according to claim 1, characterized in that, An insert block fixing sleeve (7) is provided on the inner side of the two annular mounting seats (4), and the annular insert block (9) is embedded in the inner side of the annular mounting seat (4) through the insert block fixing sleeve (7).

5. The connection mechanism between the backrest and armrest of an electric vehicle according to claim 2, characterized in that, Each decorative cover (10) has a flange (17) at one of the two insertion pins (16) along its edge, and each flange (17) does not contact the annular insert (9).

6. The connection mechanism between the backrest and armrest of an electric vehicle according to claim 5, characterized in that, Each of the decorative caps (10) is integrally formed with the corresponding four insertion pins (16) and two flanges (17).

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