Electric tricycle with adjustable backrest

Abstract

The utility model relates to an electro-tricycle with an adjustable backrest, which belongs to the field of electro-tricycles and comprises an electro-tricycle body and a power box, the power box is mounted on the electro-tricycle body, a cushion is arranged at the top of the power box, and a backup plate attached to one side of the power box is fixedly mounted on the electro-tricycle body. An adjusting assembly is arranged on the backup plate; the adjusting assembly comprises a head supporting plate and a waist supporting plate. According to the electro-tricycle with the adjustable backrest, when the positions of the waist supporting plate and the head supporting plate need to be adjusted, a pull rod on an adjusting rod is pulled, and a movable rod is driven to move, so that a movable plate slides in a mounting cavity and extrudes a spring to stretch out and draw back; the positions of the waist supporting plate and the head supporting plate can be adjusted up and down after the limiting columns are pulled out of the limiting grooves, the waist cushion and the head cushion are adjusted to the positions most suitable for supporting the head and the waist of a rider, and therefore the bicycle is suitable for riders of different heights, and comfort in the riding process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tricycles, in particular to an electric tricycle with an adjustable backrest. Background Art

[0002] Electric tricycles are three-wheeled vehicles that are powered by batteries and driven by motors and are used to transport goods or people. Electric tricycles are divided into three types according to their use: household type, freight type, and factory type. They are widely used in short-distance transportation fields such as families, urban and rural areas, individual rentals, factories, mining areas, sanitation, and community cleaning due to their strong applicability, flexibility, and low prices.

[0003] According to Chinese patent announcement No. CN217969765U, an electric tricycle with an adjustable backrest includes: an electric tricycle body and a power box, the power box is installed on the surface of the electric tricycle body, a mounting frame is installed on the surface of the power box, a seat cushion is installed on the surface of the mounting frame, a fixing plate is also installed on the surface of the power box, a backrest is provided on the inner wall of the fixing plate, and a backrest is connected to one side of the backrest; driving gears are connected to both sides of the bottom of the backrest.

[0004] This announcement adjusts the angle of the backrest by adjusting the angle of the backrest of the electric tricycle, but the rider usually sits upright during riding, which is convenient for the rider to look forward. Adjusting the angle of the backrest does not make the rider ride in the correct posture. When riders of different heights use the backrest, there are differences in the support positions of the head and waist of people of different heights, resulting in the backrest being unsuitable for supporting the waist and head of riders of different heights, resulting in poor comfort. Therefore, an electric tricycle with an adjustable backrest is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an electric tricycle with an adjustable backrest, which has the advantages of being suitable for supporting the waist and head of riders of different heights, and solves the problem that the backrest is not suitable for supporting the waist and head of riders of different heights, resulting in poor comfort.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric tricycle with an adjustable backrest, comprising an electric tricycle body and a power box, wherein the power box is installed on the electric tricycle body, a cushion is provided on the top of the power box, a backrest plate attached to one side of the power box is fixedly installed on the electric tricycle body, and an adjustment component is provided on the backrest plate.

[0007] The adjustment assembly includes a head support plate and a waist support plate, the front and rear side walls of the head support plate and the waist support plate are fixedly connected with adjustment rods, the front and rear side walls of the back plate are provided with sliding grooves, the interior of the back plate is provided with a limiting groove located on the inner wall of the sliding groove, the side of the adjustment rod close to the sliding groove is fixedly connected with a slider, the slider is slidably connected to the interior of the sliding groove, the interior of the slider is provided with an installation cavity, the interior of the installation cavity is slidably connected with a movable plate, one side of the movable plate is fixedly connected with a limiting column, the limiting column is inserted into the interior of the limiting groove, and the side of the movable plate away from the limiting column is fixedly connected with a movable rod.

[0008] Furthermore, the outer sleeve of the movable rod is provided with a spring installed in the installation cavity, and the movable plate is fixedly connected to one side of the spring.

[0009] Furthermore, one end of the movable rod away from the movable plate sequentially passes through the slider and the adjustment rod and extends to the outside, and a pull rod is fixedly connected to one side of the movable rod away from the movable plate.

[0010] Furthermore, there are multiple limit grooves, and the multiple limit grooves are evenly distributed inside the slide groove at upper and lower intervals.

[0011] Furthermore, a head cushion is fixedly installed on a side of the head support plate away from the back plate, and a waist cushion is fixedly installed on a side of the waist support plate away from the back plate.

[0012] Furthermore, two side guardrails are fixedly installed on the top of the power box, and the two side guardrails are respectively located on the front and rear sides of the seat cushion.

[0013] Furthermore, the adjustment rod is an "L"-shaped rod, and the adjustment rod is attached to the side wall of the support plate.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] When the positions of the waist support plate and the head support plate need to be adjusted for the electric tricycle with an adjustable backrest, the pull rod on the adjusting rod is pulled to drive the movable rod to move so that the movable plate slides in the installation cavity and squeezes the spring to make it expand and contract. After the limiting column is pulled out from the limiting groove, the positions of the waist support plate and the head support plate can be adjusted up and down, so that the waist cushion and the head cushion are adjusted to the most suitable positions for supporting the head and waist of the rider, so that it is suitable for riders of different heights and improves the comfort during riding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 The utility model structure Figure 1A magnified view of the structure at center A;

[0018] Figure 3 It is a three-dimensional diagram of the head support plate of the utility model structure;

[0019] Figure 4 It is a top sectional view of the structural adjustment rod of the utility model.

[0020] In the figure: 1. electric tricycle body; 2. power box; 3. seat cushion; 4. side guardrail; 5. lumbar support plate; 6. lumbar cushion; 7. head support plate; 8. head cushion; 9. back plate; 10. slide groove; 11. limit groove; 12. adjustment rod; 13. slider; 14. pull rod; 15. installation cavity; 16. movable plate; 17. limit column; 18. spring; 19. movable rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 In this embodiment, an electric tricycle with an adjustable backrest includes an electric tricycle body 1 and a power box 2, the power box 2 is installed on the electric tricycle body 1, a cushion 3 is provided on the top of the power box 2, a backrest 9 attached to one side of the power box 2 is fixedly installed on the electric tricycle body 1, and an adjustment component is provided on the backrest 9.

[0023] The adjustment component includes a head support plate 7 and a waist support plate 5, and the front and rear side walls of the head support plate 7 and the waist support plate 5 are fixedly connected with an adjustment rod 12, and the front and rear side walls of the back plate 9 are provided with a slide groove 10, and the interior of the back plate 9 is provided with a limiting groove 11 located on the inner wall of the slide groove 10, and the side of the adjustment rod 12 close to the slide groove 10 is fixedly connected with a slider 13, and the slider 13 is slidably connected to the inside of the slide groove 10, and the interior of the slider 13 is provided with an installation cavity 15, and the interior of the installation cavity 15 is slidably connected with a movable plate 16, and one side of the movable plate 16 is fixedly connected with a limiting column 17, and the limiting column 17 is inserted into the inside of the limiting groove 11, and the side of the movable plate 16 away from the limiting column 17 is fixedly connected with a movable rod 19, and the adjustment rod 12 is an "L"-shaped rod, and the adjustment rod 12 is attached to the side wall of the back plate 9.

[0024] In this embodiment, the outer sleeve of the movable rod 19 is provided with a spring 18 installed inside the installation cavity 15, the movable plate 16 is fixedly connected to one side of the spring 18, the end of the movable rod 19 away from the movable plate 16 passes through the slider 13 and the adjusting rod 12 in sequence and extends to the outside, and the side of the movable rod 19 away from the movable plate 16 is fixedly connected to the pull rod 14.

[0025] When it is necessary to adjust the positions of the waist support plate 5 and the head support plate 7, the pull rod 14 on the adjustment rod 12 is pulled to drive the movable rod 19 to move so that the movable plate 16 slides in the installation cavity 15 and squeezes the spring 18 to make it expand and contract. After the limiting column 17 is pulled out from the limiting groove 11, the positions of the waist support plate 5 and the head support plate 7 can be adjusted up and down, so that the waist cushion 6 and the head cushion 8 are adjusted to the most suitable position to support the head and waist of the rider, so that it is suitable for riders of different heights.

[0026] There are multiple limiting grooves 11 , and the multiple limiting grooves 11 are evenly distributed inside the sliding groove 10 up and down.

[0027] By providing a plurality of limiting grooves 11, the head support plate 7 and the waist support plate 5 can be adjusted to the limiting columns of different heights.

[0028] Clear reference Figure 1 A head cushion 8 is fixedly installed on the side of the head support plate 7 away from the back plate 9, and a waist cushion 6 is fixedly installed on the side of the waist support plate 5 away from the back plate 9.

[0029] The head cushion 8 and the waist cushion 6 are provided to increase the comfort of the rider's head and waist support.

[0030] In this example, two side guardrails 4 are fixedly installed on the top of the power box 2, and the two side guardrails 4 are respectively located on the front and rear sides of the seat cushion 3.

[0031] The two side guardrails 4 provide protection for riders, and the side guardrails 4 are an inverted U-shaped structure.

[0032] The working principle of the above embodiment is as follows: when in use, by pulling the pull rod 14 on the adjustment rod 12 and driving the movable rod 19 to move, the movable plate 16 slides in the installation cavity 15 and squeezes the spring 18 to make it expand and contract. After the limiting column 17 is pulled out from the limiting groove 11, the position of the waist support plate 5 and the head support plate 7 can be adjusted up and down, and the slider 13 can slide in the slide groove 10. After adjusting to the appropriate position, let go and the limiting column 17 can be inserted into the corresponding limiting groove 11 through the rebound force of the spring 18 itself, thereby achieving a limiting effect, so that the waist cushion 6 and the head cushion 8 are adjusted to the most suitable position to support the head and waist of the rider, so that it is suitable for riders of different heights and improves the comfort during riding.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric tricycle with an adjustable backrest, comprising an electric tricycle body (1) and a power supply box (2), characterized in that: The power box (2) is mounted on the electric tricycle body (1), a seat cushion (3) is arranged on the top of the power box (2), a backing plate (9) attached to one side of the power box (2) is fixedly mounted on the electric tricycle body (1), and an adjustment component is arranged on the backing plate (9); The adjustment component comprises a head support plate (7) and a waist support plate (5), the front and rear side walls of the head support plate (7) and the waist support plate (5) are fixedly connected with an adjustment rod (12), the front and rear side walls of the back plate (9) are provided with a slide groove (10), the back plate (9) is provided with a limiting groove (11) located on the inner wall of the slide groove (10), the side of the adjustment rod (12) close to the slide groove (10) is fixedly connected with a slider (13), the slider (13) is slidably connected to the inside of the slide groove (10), the slider (13) is provided with an installation cavity (15), the inside of the installation cavity (15) is slidably connected with a movable plate (16), one side of the movable plate (16) is fixedly connected with a limiting column (17), the limiting column (17) is inserted into the inside of the limiting groove (11), and the side of the movable plate (16) away from the limiting column (17) is fixedly connected with a movable rod (19).

2. The electric tricycle with adjustable backrest according to claim 1, characterized in that: The outer portion of the movable rod (19) is sleeved with a spring (18) installed inside the installation cavity (15), and the movable plate (16) is fixedly connected to one side of the spring (18).

3. The electric tricycle with adjustable backrest according to claim 1, characterized in that: One end of the movable rod (19) away from the movable plate (16) passes through the slider (13) and the adjustment rod (12) in sequence and extends to the outside. The side of the movable rod (19) away from the movable plate (16) is fixedly connected to a pull rod (14).

4. The electric tricycle with adjustable backrest according to claim 1, characterized in that: There are a plurality of limit grooves (11), and the plurality of limit grooves (11) are equidistantly distributed vertically inside the slide groove (10).

5. The electric tricycle with adjustable backrest according to claim 1, characterized in that: A head cushion (8) is fixedly mounted on the side of the head support plate (7) away from the backrest plate (9), and a waist cushion (6) is fixedly mounted on the side of the waist support plate (5) away from the backrest plate (9).

6. The electric tricycle with adjustable backrest according to claim 1, characterized in that: Two side guardrails (4) are fixedly mounted on the top of the power box (2), and the two side guardrails (4) are respectively located on the front and rear sides of the seat cushion (3).

7. The electric tricycle with adjustable backrest according to claim 1, characterized in that: The adjusting rod (12) is an "L"-shaped rod, and the adjusting rod (12) is attached to the side wall of the supporting plate (9).

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