Backrest mounting structure and tricycle

Abstract

The utility model discloses a backrest mounting structure and tricycle relates to backrest manufacturing technical field, and backrest mounting structure includes support mounting structure and backrest support, and support mounting structure sets up on seat support, and support mounting structure includes first installation structure and second installation structure of mutually perpendicular of installation direction, and backrest support is connected with seat support through first installation structure and second installation structure, and through setting first installation structure and second installation structure of mutually perpendicular of installation direction, make backrest support and seat support from mutually perpendicular two directions fixed, and installation is stable and reliable, and backrest support is not easy to deform in the use process, and along with the use time growth, can also provide good support effect for the driver. The tricycle includes backrest mounting structure, and is stable and not easy to deform, and along with the use time growth, can also provide good support effect for the driver, and improve the driving feeling of the driver.

Description

Technical Field

[0001] This utility model relates to the field of backrest manufacturing technology, and in particular to a backrest mounting structure and a tricycle. Background Technology

[0002] A tricycle is a mode of transportation. Existing tricycles are usually equipped with a backrest for the driver to lean against in order to improve the driver's riding comfort. However, the backrest mounting structure in the prior art is prone to deformation with the increase of use, which makes it unable to provide a good support for the driver. For example, in the Chinese utility model patent application (CN206615297U), the fixed base of the backrest mounting structure is fixed only by two bolts. With the increase of use, the fixed base is prone to deformation, causing the backrest to gradually tilt away from the human body, which fails to provide a good support for the driver. Utility Model Content

[0003] The purpose of this utility model is to provide a backrest mounting structure and a tricycle. The backrest support is not easily deformed during use and can provide good support for the driver as the usage time increases, thus solving the problems existing in the prior art.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model provides a backrest mounting structure, including a bracket mounting structure and a backrest bracket. The bracket mounting structure is disposed on a seat bracket and includes a first mounting structure and a second mounting structure with mutually perpendicular mounting directions. The backrest bracket is connected to the seat bracket through the first mounting structure and the second mounting structure.

[0006] In some embodiments, the first mounting structure is disposed on the rear side of the seat bracket, the top of the first mounting structure is provided with a horizontal mounting surface, the backrest bracket is provided with a first support plate, and the bottom of the first support plate is connected to the horizontal mounting surface by a first bolt.

[0007] In some embodiments, the horizontal mounting surface extends vertically downwards on two sides perpendicular to the length direction of the seat bracket to form first guide side plates; the bottom of the first support plate is provided with a mounting base, and the mounting base extends vertically downwards on two sides perpendicular to the length direction of the seat bracket to form second guide side plates; the bottom of the first support plate is slidably inserted into the outside of the first mounting structure so that the mounting base is in contact with the horizontal mounting surface, and the two second guide side plates are respectively guided and in contact with the two first guide side plates; the mounting base and the horizontal mounting surface are connected by the first bolt.

[0008] In some embodiments, the horizontal mounting surface has a plurality of first through holes parallel to the height direction of the seat bracket, and the mounting bottom surface has a plurality of second through holes parallel to the height direction of the seat bracket. The first through holes and the second through holes correspond one-to-one. After the first bolt passes through the second through hole and the first through hole in sequence, it is tightened with a suitable nut so that the mounting bottom surface is fitted and fixed to the horizontal mounting surface.

[0009] In some embodiments, the first mounting structure is symmetrically arranged with the second mounting structure on both sides perpendicular to the length direction of the seat bracket, and the first mounting structure and the second mounting structure are located on the same side of the seat bracket. The second mounting structure includes a vertical mounting surface perpendicular to the horizontal mounting surface. The backrest bracket is provided with a second support plate located below the first support plate. The second support plate is connected to the vertical mounting surface by a second bolt perpendicular to the first bolt.

[0010] In some embodiments, the front side of the second support plate is provided with a mounting side parallel to the vertical mounting surface, and the mounting side is fixed by the second bolt after it is in contact with the vertical mounting surface.

[0011] In some embodiments, each of the vertical mounting surfaces is provided with a third through hole perpendicular to the height direction of the seat bracket, and the mounting side is provided with a fourth through hole perpendicular to the height direction of the seat bracket. The third through hole and the fourth through hole correspond one to one. After the second bolt passes through the fourth through hole and the third through hole in sequence, it is tightened with a matching nut so that the mounting side is fitted and fixed to the vertical mounting surface.

[0012] In some embodiments, the backrest support includes an H-shaped support, which includes two parallel vertical plates and a horizontal plate disposed between the two vertical plates. The horizontal plate is perpendicular to the two vertical plates and divides the H-shaped support into a backrest mounting section and a seat mounting section arranged vertically. A first support plate is disposed at the bottom of the seat mounting section and between the two vertical plates. The two sides of the first support plate at the end away from the seat support are respectively connected to the adjacent sides of the two vertical plates on the seat mounting section. A second support plate is disposed at the end of the seat mounting section near the seat support, and the two ends of the second support plate at the side away from the seat support are respectively connected to the two vertical plates.

[0013] In some embodiments, the backrest bracket further includes a backrest mounting plate for mounting the seat back, the backrest mounting plate being connected to the backrest mounting section.

[0014] This utility model also provides a tricycle, including the aforementioned backrest mounting structure.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] The backrest mounting structure provided by this utility model, by setting a first mounting structure and a second mounting structure with mutually perpendicular installation directions, fixes the backrest bracket and the seat bracket from two mutually perpendicular directions, making the installation stable and reliable. The backrest bracket is not easy to deform during use, and it can also provide good support for the driver as the usage time increases.

[0017] The tricycle provided by this utility model has a stable backrest installation structure that is not easily deformed. As the usage time increases, it can also provide good support for the driver and improve the driver's driving experience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the backrest mounting structure in Embodiment 1 of this utility model;

[0020] Figure 2 for Figure 1 A magnified view of part A in the image;

[0021] Figure 3 This is a schematic diagram of the overall structure of the backrest support in Embodiment 1 of this utility model;

[0022] Figure 4 for Figure 3 A magnified view of part B in the middle section;

[0023] Figure 5 This is a schematic diagram of the overall structure of the seat bracket in Embodiment 1 of this utility model;

[0024] Figure 6 for Figure 5 A magnified view of part C in the middle.

[0025] In the diagram: 100, backrest mounting structure; 1, seat bracket; 11, first mounting structure; 111, first guide side plate; 112, horizontal mounting surface; 12, second mounting structure; 121, vertical mounting surface; 13, first bolt; 14, second bolt; 2, backrest bracket; 21, first support plate; 211, second guide side plate; 22, second support plate; 23, H-shaped bracket; 24, backrest mounting plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] The purpose of this utility model is to provide a backrest mounting structure and a tricycle. The backrest support is not easily deformed during use and can provide good support for the driver as the usage time increases, thus solving the problems existing in the prior art.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the following description is provided in conjunction with the appendix. Figures 1-6 The present invention will be further described in detail below with reference to specific embodiments.

[0029] Example 1

[0030] This embodiment provides a backrest mounting structure 100, for reference... Figure 1 The backrest bracket 100 includes a support mounting structure and a backrest bracket 2. The support mounting structure is mounted on the seat bracket 1 and includes a first mounting structure 11 and a second mounting structure 12 with mutually perpendicular mounting directions. The backrest bracket 2 is connected to the seat bracket 1 through the first mounting structure 11 and the second mounting structure 12. The backrest mounting structure 100 provided in this embodiment, by setting the first mounting structure 11 and the second mounting structure 12 with mutually perpendicular mounting directions, fixes the backrest bracket 2 and the seat bracket 1 from two mutually perpendicular directions, ensuring a stable and reliable installation. The backrest bracket 2 is not easily deformed during use and can provide good support for the driver over time. Furthermore, the service life of the backrest bracket 2 is guaranteed, reducing maintenance costs.

[0031] In some implementations, reference Figure 3 and Figure 5The first mounting structure 11 is located on the rear side of the seat bracket 1 (i.e., the side opposite to the driving direction when the driver is driving). A horizontal mounting surface 112 is provided on the top of the first mounting structure 11. A first support plate 21 is provided on the backrest bracket 2, and the bottom of the first support plate 21 is connected to the horizontal mounting surface 112 via a first bolt 13. By providing the first support plate 21, the bottom of the first support plate 21 is connected to the horizontal mounting surface 112 on the top of the first mounting structure 11 via the first bolt 13, increasing the connection area between the backrest bracket 2 and the first mounting structure 11. This makes the connection between the backrest bracket 2 and the seat bracket 1 more stable, and the backrest bracket 2 is less prone to deformation when the driver leans against the seat back.

[0032] In some implementations, reference Figure 4 and Figure 6 The horizontal mounting surface 112 extends vertically downwards on two sides perpendicular to the length of the seat bracket 1, forming first guide side plates 111. The bottom of the first support plate 21 has a mounting base, and the two sides of the mounting base extend vertically downwards on two sides perpendicular to the length of the seat bracket 1, forming second guide side plates 211. The bottom of the first support plate 21 is slidably inserted into the outside of the first mounting structure 11, so that the mounting base fits against the horizontal mounting surface 112. The two second guide side plates 211 are respectively guided and fitted against the two first guide side plates 111. The mounting base and the horizontal mounting surface 112 are connected by bolts. When installing the backrest bracket 2 and the seat bracket 1, under the guiding and fitting action of the first guide side plates 111 and the second guide side plates 211, the first support plate 21 can be easily inserted into the outside of the first mounting structure 11, improving the installation efficiency of the backrest bracket 2.

[0033] In some implementations, reference Figures 3-6The horizontal mounting surface 112 has multiple first through holes parallel to the height direction of the seat bracket 1, and the mounting base has multiple second through holes parallel to the height direction of the seat bracket 1. The first through holes and the second through holes correspond one-to-one. After the first bolt 13 passes through the second through hole and the first through hole in sequence, it is tightened with the matching nut to make the mounting base fit and fix with the horizontal mounting surface 112. After the first support plate 21 is inserted into the outside of the first mounting structure 11, the end of each second guide side plate 211 near the seat bracket 1 abuts against the rear side of the seat bracket 1. At this time, the first through holes and the second through holes are aligned one-to-one. Then, the first bolt 13 is passed through the second through hole and the first through hole and tightened with the nut. The structure is simple, the disassembly and assembly are convenient, and the installation efficiency and maintenance efficiency of the backrest bracket 2 are improved. Furthermore, the second guide side plate 211 abuts against the seat bracket 1, which enhances the stability of the backrest bracket 2. When the driver leans against the seat back, the abutment between the second guide side plate 211 and the seat bracket 1 also disperses some of the leaning force, extending the service life of the backrest bracket 2. In some other embodiments, the first support plate 21 and the first mounting structure 11 can also be connected by welding.

[0034] In some implementations, reference Figure 3 and Figure 5 The first mounting structure 11 has a second mounting structure 12 symmetrically arranged on both sides perpendicular to the length direction of the seat bracket 1, and the first mounting structure 11 and the second mounting structure 12 are located on the same side of the seat bracket 1. The second mounting structure 12 includes a vertical mounting surface 121 perpendicular to the horizontal mounting surface 112. The backrest bracket 2 is provided with a second support plate 22 located below the first support plate 21. The second support plate 22 is connected to the vertical mounting surface 121 by a second bolt 14 perpendicular to the first bolt 13. By setting a second mounting structure 12, which is symmetrically arranged on both sides perpendicular to the length direction of the seat bracket 1, the first support plate 21 can be subjected to uniform force, avoiding bending caused by excessive local stress on the first support plate 21. Furthermore, the second mounting structure 12 and the second support plate 22 are connected by a second bolt 14, which is perpendicular to the first bolt 13. This connects the backrest bracket 2 and the seat bracket 1 from two mutually perpendicular directions, ensuring a stable and reliable installation. The backrest bracket 2 is not easily deformed during use and can provide good support for the driver as the usage time increases.

[0035] The vertical mounting surface 121 and the horizontal mounting surface 112 are arranged at an angle, which can be 80 to 110 degrees, and preferably 90 degrees vertically.

[0036] In some implementations, reference Figure 2 and Figure 3The front side of the second support plate 22 is provided with a mounting side parallel to the vertical mounting surface 121. After the mounting side is attached to the vertical mounting surface 121, it is fixed by the second bolt 14. In some other embodiments, the second support plate 22 and the second mounting structure 12 can also be connected by welding.

[0037] In some embodiments, each vertical mounting surface 121 has a third through hole perpendicular to the height direction of the seat bracket 1, and each mounting side has a fourth through hole perpendicular to the height direction of the seat bracket 1. The third through holes and the fourth through holes correspond one-to-one. The second bolt 14 passes through the fourth through hole and the third through hole in sequence and is then tightened with a matching nut to make the mounting side fit and fix to the vertical mounting surface 121. After the first support plate 21 is inserted into the outside of the first mounting structure 11, the side of each second guide side plate 211 near the seat bracket 1 abuts against the side of the seat bracket 1. At this time, the mounting side of the second support plate 22 fits against the vertical mounting surface 121 of the second mounting structure 12, and the third through hole and the fourth through hole correspond one-to-one. The second bolt 14 passes through the fourth through hole and the third through hole in sequence and is then tightened with a nut. This facilitates installation and improves the installation and maintenance efficiency of the backrest bracket 2.

[0038] In some implementations, reference Figure 3 The backrest support 2 includes an H-shaped support 23, which comprises two parallel vertical plates and a horizontal plate positioned between them. The horizontal plate is perpendicular to the two vertical plates and divides the H-shaped support 23 into a backrest mounting section and a seat mounting section arranged vertically. A first support plate 21 is located at the bottom of the seat mounting section and between the two vertical plates. The two sides of the first support plate 21, away from the seat support 1, are connected to the adjacent sides of the two vertical plates on the seat mounting section. A second support plate 22 is located at the end of the seat mounting section near the seat support 1, and the two ends of the second support plate 22, away from the seat support 1, are connected to the two vertical plates. By setting the backrest support 2 as an H-shaped support 23, the material usage of the backrest support 2 can be reduced, saving costs while ensuring the support capacity of the backrest support 2. The two ends of the second support plate 22, away from the seat support 1, are connected to the two vertical plates of the H-shaped support 23. In this embodiment, the two sides of the second support plate 22 are welded to the adjacent sides of the two vertical plates.

[0039] In some implementations, reference Figure 3 The backrest bracket 2 also includes a backrest mounting plate 24 for mounting the seat back, which is connected to the backrest mounting section. In this embodiment, the lower end of the backrest mounting plate 24 is connected to the backrest bracket 2, and the backrest mounting plate 24 and the backrest bracket 2 are integrally formed, which can reduce the installation steps of the seat back and improve installation efficiency.

[0040] Example 2

[0041] This utility model also provides a tricycle, including the backrest mounting structure 100 as described in Embodiment 1. The backrest mounting structure 100 is sturdy and not easily deformed, and as the usage time increases, it can also provide good support for the driver, improving the driver's driving experience.

[0042] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A backrest mounting structure, characterized in that: include: A bracket mounting structure is provided on a seat bracket, and the bracket mounting structure includes a first mounting structure and a second mounting structure with mutually perpendicular mounting directions. as well as A backrest support is connected to the seat support via the first mounting structure and the second mounting structure.

2. The backrest mounting structure according to claim 1, characterized in that: The first mounting structure is disposed on the rear side of the seat bracket. The top of the first mounting structure is provided with a horizontal mounting surface. The backrest bracket is provided with a first support plate. The bottom of the first support plate is connected to the horizontal mounting surface by a first bolt.

3. The backrest mounting structure according to claim 2, characterized in that: The two sides of the horizontal mounting surface, which are perpendicular to the length direction of the seat bracket, extend downwards to form first guide side plates. The bottom of the first support plate is provided with a mounting base. The two sides of the mounting base perpendicular to the length direction of the seat bracket extend downward to form second guide side plates. The bottom of the first support plate is slidably inserted into the outside of the first mounting structure so that the mounting base is in contact with the horizontal mounting surface. The two second guide side plates are respectively guided and in contact with the two first guide side plates. The mounting base and the horizontal mounting surface are connected by the first bolt.

4. The backrest mounting structure according to claim 3, characterized in that: The horizontal mounting surface has multiple first through holes parallel to the height direction of the seat bracket, and the mounting base has multiple second through holes parallel to the height direction of the seat bracket. The first through holes and the second through holes correspond one-to-one. After the first bolt passes through the second through hole and the first through hole in sequence, it is tightened with a matching nut so that the mounting base is fitted and fixed to the horizontal mounting surface.

5. The backrest mounting structure according to any one of claims 2 to 4, characterized in that: The first mounting structure is symmetrically arranged with the second mounting structure on both sides perpendicular to the length direction of the seat bracket, and the first mounting structure and the second mounting structure are located on the same side of the seat bracket. The second mounting structure includes a vertical mounting surface perpendicular to the horizontal mounting surface. The backrest bracket is provided with a second support plate located below the first support plate, and the second support plate is connected to the vertical mounting surface by a second bolt perpendicular to the first bolt.

6. The backrest mounting structure according to claim 5, characterized in that: The front side of the second support plate is provided with a mounting side that is arranged parallel to the vertical mounting surface. After the mounting side is in contact with the vertical mounting surface, it is fixed by the second bolt.

7. The backrest mounting structure according to claim 6, characterized in that: Each of the vertical mounting surfaces is provided with a third through hole perpendicular to the height direction of the seat bracket, and the mounting side is provided with a fourth through hole perpendicular to the height direction of the seat bracket. The third through hole and the fourth through hole correspond one to one. After the second bolt passes through the fourth through hole and the third through hole in sequence, it is tightened with the matching nut so that the mounting side is fitted and fixed to the vertical mounting surface.

8. The backrest mounting structure according to claim 7, characterized in that: The backrest support includes an H-shaped support, which includes two parallel vertical plates and a horizontal plate disposed between the two vertical plates. The horizontal plate is perpendicular to the two vertical plates and divides the H-shaped support into a backrest mounting section and a seat mounting section arranged vertically. The first support plate is disposed at the bottom of the seat mounting section and between the two vertical plates. The two sides of the end of the first support plate away from the seat bracket are respectively connected to the sides of the two vertical plates on the seat mounting section that are close to each other. The second support plate is disposed at the end of the seat mounting section near the seat bracket, and the two ends of the second support plate away from the seat bracket are respectively connected to the two vertical plates.

9. The backrest mounting structure according to claim 8, characterized in that: The backrest bracket also includes a backrest mounting plate for mounting the seat back, the backrest mounting plate being connected to the backrest mounting section.

10. A tricycle, characterized in that: include: The backrest mounting structure according to any one of claims 1 to 9.

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