Adjustable rear goods shelf

Abstract

The adjustable rear goods shelf comprises a rear goods shelf body and a backrest, an elastic block is arranged on the rear goods shelf body, a V-shaped groove is formed in the elastic block, a plurality of clamping grooves are further formed in the elastic block in the vertical direction, and a clamping block is arranged on the backrest. When a user needs to use the rear goods shelf to carry people, the elastic block is pressed to enable the clamping block to be separated from the clamping groove, the backrest can be moved, the elastic block is loosened after the backrest moves to the corresponding position, the elastic block resets to enable the clamping block to be clamped into the clamping groove, the backrest can be positioned, and the backrest can meet the waist supporting requirements of people with different body types. And the applicability and the use feeling of the rear goods shelf are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rear racks, in particular to an adjustable rear rack. BACKGROUND

[0002] The rear rack refers to a rack located at the tail end of a two-wheeled non-motor vehicle, used for carrying people or objects, facilitating users to pick up and drop off school-age children to and from school, and facilitating delivery riders to store customer objects.

[0003] As disclosed in the utility model patent with the patent announcement No. CN207955871U, a motorcycle rear rack with a backrest includes a main support pipe and an auxiliary support pipe. The main support pipe includes two side pipes and a rear pipe connecting the two side pipes. The ends of the two side pipes away from the rear pipe are both bent downward to extend and are provided with a connecting segment. The ends of the connecting segments away from the side pipes are both provided with a connecting fork body connected with the motorcycle frame. A load-carrying net is arranged between the two side pipes. A fixed pivot is arranged between the two side pipes close to the rear pipe. The two ends of the fixed pivot are symmetrically provided with a rotating torsion spring and a rotating rod rotatably connected with the fixed pivot. A backrest is installed between the top ends of the two rotating rods. A magnet matched with the load-carrying net is arranged on the rotating rod.

[0004] With the above rear rack, different users have different body sizes. When using the backrest, if the user's body size is too large or too small, the backrest cannot be attached to the waist for support, reducing the use of the backrest, which needs to be improved. Utility model content

[0005] In order to improve the use of the backrest on the rear rack, the present application provides an adjustable rear rack.

[0006] The adjustable rear rack provided by the present application adopts the following technical solution:

[0007] An adjustable rear rack includes a rear rack body and a backrest sliding up and down on the rear rack body. The rear rack body is provided with an elastic block. A V-shaped groove is formed in the elastic block. A plurality of clamping grooves are vertically formed in the elastic block. The clamping grooves are located on the side of the V-shaped groove away from the rear rack body. The backrest is provided with a clamping block. The clamping grooves are used for clamping the clamping block.

[0008] By adopting the technical scheme, when the user needs to use the rear shelf to carry people, the elastic block is pressed in the direction close to the rear shelf body, due to the V-shaped groove, the part of the elastic block located on the opposite sides of the V-shaped groove can be extruded to deform, so that the clamping block is separated from the clamping groove, and the backrest can be moved to adapt to the height of the user of the rear shelf and the alignment of the clamping block and the clamping groove. When the elastic block is released, the elastic block is reset to make the clamping block clamped into the clamping groove, and the backrest is positioned by the abutting of the clamping block and the inner wall of the clamping groove, so that the backrest can meet the waist support needs of people of different body types, and the applicability and use of the rear shelf are improved.

[0009] Optionally, the elastic block comprises an extension part and a connecting part arranged on the extension part, the clamping groove is arranged on the extension part, the connecting part is located on one side of the extension part close to the rear shelf body, and the V-shaped groove is formed by splicing the extension part and the connecting part, and a dovetail block is arranged on the rear shelf body, and a dovetail groove is arranged on the connecting part and used for sliding and clamping the dovetail block.

[0010] A positioning block is further slidably connected to the rear shelf body, a sliding direction of the positioning block is perpendicular to a clamping direction of the dovetail block, a through groove is arranged on the elastic block and used for clamping the positioning block in the clamping direction of the dovetail block, a positioning groove is arranged on an inner wall of the through groove and located on a side of the through groove away from the dovetail groove, the positioning groove is used for clamping the positioning block, and an elastic member is arranged on the rear shelf body and used for tensioning the positioning block so that the positioning block has a tendency to move away from the dovetail block.

[0011] By adopting the technical scheme, when the elastic block is damaged and cannot be used, the positioning block is moved close to the dovetail block so that the positioning block is located in the through groove, then the elastic block is moved so that the dovetail block is separated from the dovetail groove and the positioning block is separated from the through groove, the damaged elastic block can be removed from the rear shelf body, the intact elastic block is taken, the positioning block is moved close to the dovetail block, then the elastic block is moved, the dovetail block is clamped into the dovetail groove, the positioning block is clamped into the through groove and aligned with the positioning groove, then the positioning block is released, the positioning block is clamped into the positioning groove under the action of the elastic member, and the elastic block is positioned by the abutting of the positioning block and the inner wall of the positioning groove and the abutting of the dovetail block and the inner wall of the dovetail groove, so that the detachable connection between the elastic block and the rear shelf body is realized, the entire rear shelf does not need to be replaced when the elastic block is damaged, the service life of the rear shelf is prolonged, and material waste is reduced.

[0012] Optionally, a sliding groove is arranged on the rear shelf body, the positioning block comprises a sliding part slidably connected to the sliding groove and a positioning part arranged on the sliding part, the through groove and the positioning groove are used for clamping the positioning part, and the elastic member is located in the sliding groove and between a groove bottom of the sliding groove and the sliding part.

[0013] By adopting the technical scheme, the elastic piece is surrounded and shielded by the rear goods shelf body and the sliding part, so that the situation that rainwater penetrates into the rear goods shelf body to cause corrosion of the elastic piece is reduced, and the service life of the elastic piece is prolonged.

[0014] Optionally, the area of the cross section of the extension part cut along the horizontal direction gradually increases towards the direction close to the bottom of the V-shaped groove.

[0015] By adopting the technical scheme, the connection strength between the extension part and the positioning part is increased, and the situation that the extension part is cracked between the positioning part after being pressed multiple times is reduced.

[0016] Optionally, the end face of the elastic block away from the rear goods shelf body is upwardly inclined outward.

[0017] By adopting the technical scheme, when the clamping block is clamped into the clamping groove and the elastic block is loosened, the elastic block abuts against the backrest, the situation that the clamping block is separated from the clamping groove is reduced, and the positioning stability between the backrest and the rear goods shelf body is improved.

[0018] Optionally, the end face of the elastic block away from the rear goods shelf body and the vertical direction form an included angle of 5-10°.

[0019] By adopting the technical scheme, the cost caused by the increase of the material of the elastic block due to the excessively large angle is reduced.

[0020] In summary, the present application has at least one of the following beneficial technical effects:

[0021] 1. When the user needs to use the rear goods shelf to carry people, the elastic block is pressed to make the clamping block separate from the clamping groove, so that the backrest can be moved, and after the backrest is moved to the corresponding position, the elastic block is loosened, the elastic block is reset to make the clamping block clamped into the clamping groove to position the backrest, so that the backrest can meet the waist support needs of people of different body types, and the applicability and use of the rear goods shelf are improved.

[0022] 2. The elastic block and the rear goods shelf body are detachably connected, so that when the elastic block is damaged, the entire rear goods shelf does not need to be replaced, the service life of the rear goods shelf is prolonged, and material waste is reduced.

[0023] 3. The elastic piece is surrounded and shielded by the rear goods shelf body and the sliding part, so that the situation that rainwater penetrates into the rear goods shelf body to cause corrosion of the elastic piece is reduced, and the service life of the elastic piece is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The figure is a whole schematic view of the embodiment of the present application.

[0025] Figure 2It is a partial front view of the embodiment of the present application, mainly showing the structure of the V-shaped groove.

[0026] Figure 3 It is a partial front view of the embodiment of the present application, mainly showing the structure of the V-shaped groove. Figure 1 It is an enlarged view of A part, mainly showing the structure of the dovetail block.

[0027] Figure 4 It is a partial structure view of the embodiment of the present application, mainly showing the structure of the dovetail groove, the through groove and the positioning groove.

[0028] Figure 5 It is a partial structure view of the embodiment of the present application, mainly showing the structure of the dovetail groove, the through groove and the positioning groove. Figure 1 It is an enlarged view of B part, mainly showing the structure of the clamping block.

[0029] Figure 6 It is a partial structure view of the embodiment of the present application, mainly showing the structure of the positioning part, the sliding part and the elastic piece.

[0030] Explanation of reference numerals: 1, rear shelf body; 11, giving way groove; 12, sliding groove; 2, backrest; 21, accommodating groove; 3, elastic block; 31, extension part; 311, clamping groove; 32, connecting part; 321, dovetail groove; 322, through groove; 323, positioning groove; 4, V-shaped groove; 5, clamping block; 6, dovetail block; 7, positioning block; 71, positioning part; 72, sliding part; 8, elastic piece. DETAILED DESCRIPTION

[0031] The following will be explained in detail with reference to the accompanying drawings. Figures 1-6 The present application will be further explained in detail.

[0032] The embodiment of the present application discloses an adjustable rear shelf. Referring to Figures 1-2 The adjustable rear shelf comprises a rear shelf body 1 and a backrest 2, the lower end surface of the backrest 2 is provided with an accommodating groove 21, the upper end of the rear shelf body 1 extends into the accommodating groove 21, the backrest 2 is lifted and slides on the rear shelf body 1, and the opposite sides of the rear shelf body 1 are each provided with an elastic block 3. Each elastic block 3 comprises an extension part 31 and a connecting part 32, the connecting part 32 is integrally fixed to one side of the extension part 31 close to the rear shelf body 1, the connecting part 32 and the extension part 31 are spliced to form a V-shaped groove 4, the groove opening of the V-shaped groove 4 faces upwards, the area of the horizontal cross section of the extension part 31 cut along the horizontal direction gradually increases in the direction close to the groove bottom of the V-shaped groove 4, the end surface of the extension part 31 away from the rear shelf body 1 is inclined upwards and outwards, and the end surface of the extension part 31 away from the rear shelf body 1 and the vertical direction form an included angle of 5-10°. In the embodiment, the materials of the extension part 31 and the connecting part 32 are both plastic.

[0033] Referring to Figures 1-5The outer side wall of the extension part 31 is uniformly and vertically spaced apart with a plurality of clamping grooves 311, the clamping grooves 311 are located on the side of the extension part 31 away from the rear shelf body 1, the opposite two inner walls of the accommodating groove 21 are fixed with clamping blocks 5, the positions of the clamping blocks 5 correspond to the positions of the extension part 31 one by one, and the clamping grooves 311 are used for clamping the corresponding clamping blocks 5.

[0034] Referring to Figures 1-4 The opposite two sides of the rear shelf body 1 are fixed with dovetail blocks 6, the positions of the dovetail blocks 6 correspond to the positions of the connecting part 32 one by one, the connecting part 32 is provided with dovetail grooves 321 for sliding and clamping the corresponding dovetail blocks 6, and the dovetail grooves 321 penetrate through the connecting part 32 in a direction away from the groove bottom of the V-shaped groove 4.

[0035] Referring to Figures 1-6 The opposite two outer side walls of the rear shelf body 1 are provided with accommodation grooves 11, and the rear shelf body 1 is further slidingly connected with positioning blocks 7, the number and positions of the positioning blocks 7 correspond to the number and positions of the accommodation grooves 11 one by one, each positioning block 7 comprises a positioning part 71 and a sliding part 72, the positioning part 71 penetrates through the corresponding accommodation groove 11, the sliding part 72 is located in the rear shelf body 1 and is fixed to the side of the positioning part 71 close to the rear shelf body 1, the rear shelf body 1 is provided with sliding grooves 12, the number and positions of the sliding grooves 12 correspond to the number and positions of the sliding part 72 one by one, the sliding part 72 is slidingly connected in the sliding groove 12, and the sliding direction of the sliding part 72 is perpendicular to the clamping direction of the dovetail block 6.

[0036] Referring to Figures 1-6 The outer side wall of the connecting part 32 close to the dovetail groove 321 is provided with a through groove 322, the through groove 322 penetrates through the connecting part 32 in a direction away from the groove bottom of the V-shaped groove 4, the through groove 322 is used for clamping the positioning part 71 in the clamping direction of the dovetail block 6, the inner wall of the through groove 322 is provided with a positioning groove 323, the positioning groove 323 is located on the side of the through groove 322 away from the dovetail groove 321, and the positioning groove 323 is used for clamping the positioning part 71, the rear shelf body 1 is fixed with elastic members 8, the number and positions of the elastic members 8 correspond to the number and positions of the sliding part 72 one by one, each elastic member 8 is located in the corresponding sliding groove 12 and between the groove bottom of the corresponding sliding groove 12 and the corresponding sliding part 72, the opposite two ends of the elastic member 8 are fixedly connected with the inner wall of the groove bottom of the sliding groove 12 and the corresponding sliding part 72 respectively, the elastic member 8 pulls the corresponding sliding part 72, so that the corresponding positioning part 71 has a trend of moving away from the dovetail block 6, in the embodiment, the elastic member 8 is a spring.

[0037] It should be pointed out that the state of the elastic member 8 being stretched is shown in the drawings.

[0038] The implementation principle of the adjustable rear shelf in the embodiment of the application is as follows:

[0039] When the user needs to use the rear shelf to carry people, press the extension part 31 towards the direction close to the rear shelf body 1, due to the setting of the V-shaped groove 4, the part of the elastic block 3 located on the opposite sides of the V-shaped groove 4 can be extruded to deform, so that the clamping block 5 is separated from the clamping groove 311, that is, the backrest 2 can be moved to the height of the backrest 2 and the body type of the rear shelf user is adapted and the clamping block 5 and the clamping groove 311 are aligned, release the extension part 31, the extension part 31 resets so that the clamping block 5 is clamped into the clamping groove 311, and through the abutment of the inner wall of the clamping groove 311 by the clamping block 5, the backrest 2 can be positioned, so that the backrest 2 can meet the waist support needs of people of different body types, and the applicability and use of the rear shelf are improved.

[0040] When the elastic block 3 is damaged and cannot be used, move the positioning part 71 close to the dovetail block 6, so that the positioning part 71 is located in the through groove 322, then move the elastic block 3, so that the dovetail block 6 is separated from the dovetail groove 321 and the positioning part 71 is separated from the through groove 322, that is, the damaged elastic block 3 can be removed from the rear shelf body 1, and then take the intact elastic block 3, move the positioning part 71 close to the dovetail block 6, then move the elastic block 3, so that the dovetail block 6 is clamped into the dovetail groove 321, the positioning part 71 is clamped into the through groove 322 and aligned with the positioning groove 323, then release the positioning part 71, the positioning part 71 is clamped into the positioning groove 323 under the action of the elastic member 8, and through the abutment of the inner wall of the positioning groove 323 by the positioning part 71 and the abutment of the inner wall of the dovetail groove 321 by the dovetail block 6, the elastic block 3 can be positioned, realizing the detachable connection between the elastic block 3 and the rear shelf body 1, when the elastic block 3 is damaged, the entire rear shelf does not need to be replaced, the service life of the rear shelf is prolonged, and material waste is reduced.

[0041] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An adjustable rear shelf, characterized in that: The backrest includes a rear shelf body (1) and a backrest (2) that slides and lifts on the rear shelf body (1). The rear shelf body (1) is provided with an elastic block (3). The elastic block (3) is provided with a V-shaped groove (4). The elastic block (3) is also provided with several slots (311) along the vertical direction. The slots (311) are located on the side of the V-shaped groove (4) away from the rear shelf body (1). The backrest (2) is provided with a locking block (5). The slots (311) are for the locking block (5) to be locked in.

2. The adjustable rear shelf according to claim 1, characterized in that: The elastic block (3) includes an extension (31) and a connecting part (32) provided on the extension (31). The slot (311) is provided on the extension (31). The connecting part (32) is located on the side of the extension (31) close to the rear shelf body (1). The V-shaped groove (4) is formed by splicing the extension (31) and the connecting part (32). The rear shelf body (1) is provided with a dovetail block (6). The connecting part (32) is provided with a dovetail groove (321) for the dovetail block (6) to slide and be inserted. The rear shelf body (1) is also slidably connected to a positioning block (7). The sliding direction of the positioning block (7) is perpendicular to the insertion direction of the dovetail block (6). The elastic block (3) is provided with a through groove (322). The through groove (322) allows the positioning block (7) to be inserted along the insertion direction of the dovetail block (6). The inner wall of the through groove (322) is provided with a positioning groove (323). The positioning groove (323) is located on the side of the through groove (322) away from the dovetail groove (321). The positioning groove (323) allows the positioning block (7) to be inserted. The rear shelf body (1) is provided with an elastic element (8). The elastic element (8) pulls the positioning block (7) tight, so that the positioning block (7) tends to move away from the dovetail block (6).

3. The adjustable rear shelf according to claim 2, characterized in that: The rear shelf body (1) is provided with a slide groove (12). The positioning block (7) includes a sliding part (72) slidably connected in the slide groove (12) and a positioning part (71) provided on the sliding part (72). The through groove (322) and the positioning groove (323) are for the positioning part (71) to be inserted into. The elastic member (8) is located in the slide groove (12) and between the bottom of the slide groove (12) and the sliding part (72).

4. The adjustable rear shelf according to claim 2, characterized in that: The area of ​​the cross-section of the extension (31) cut along the horizontal direction gradually increases toward the bottom of the V-groove (4).

5. The adjustable rear shelf according to claim 1, characterized in that: The end face of the elastic block (3) away from the rear shelf body (1) is tilted upward and outward.

6. The adjustable rear shelf according to claim 4, characterized in that: The elastic block (3) forms an angle of 5-10° with the end face away from the rear shelf body (1) and the vertical direction.

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