Integrated die-casting goods shelf

Abstract

The utility model relates to the technical field of bicycle goods shelves, in particular to an integrated die-casting goods shelf which comprises a goods shelf set, a base body formed in an integrated die-casting mode and connecting pipe sets arranged on the front side and the rear side of the bottom of the base body, and the left side and the right side of each connecting pipe set are provided with a straight pipe connecting part and a bent pipe connecting part respectively. The foot stool group is provided with a first foot tube group and a second foot tube group, a first straight line section and a first inclined section are respectively arranged at the connecting parts of the first foot tube group and the straight tube connecting part and the bent tube connecting part, and a second straight line section and a second inclined section are respectively arranged at the connecting parts of the second foot tube group and the straight tube connecting part and the bent tube connecting part; and the first straight line section and the first inclined section of the first foot tube group and the second straight line section and the second inclined section of the second foot tube group are respectively connected with the connecting part of the straight tube connecting part and the bent tube connecting part of the connecting tube group through a screw lock structure or a welding structure. The support force of the seat body is relatively strong, and the foot stool group can be assembled into different colors and shapes, so that the novelty is increased, and the buying desire of consumers is improved.

Description

Integrated die-cast shelving Technical Field

[0001] This utility model relates to the field of bicycle rack technology, and in particular to an integrated die-cast rack that is installed on a bicycle. Background Technology

[0002] In recent years, sports have become increasingly popular in China, with bicycles being the most popular mode of transportation, commuting, or exercise. Bicycles typically have a rack seat 1 installed on the rear wheel for placing items, and this rack seat 1 can be connected to a storage box to improve the convenience and stability of item placement. As shown in Figure 1, current bicycle rear racks are connected to the rear wheel via a kickstand 2, with the rack seat 1 for supporting items connected above the kickstand 2. The kickstand 2 and rack seat 1 are welded together. The rack seat 1 consists of a frame 10 and a plurality of abutment tubes 11. The frame 10 and the abutment tubes 11 connected to the inner side of the frame 10 are also welded together. This welded structure results in insufficient overall structural strength of the rack seat 1, making it unable to effectively support items.

[0003] To further explain, current bicycle rear racks all use welded structures for the legs 2, rack base 1, frame 10 of the rack base 1, and multiple abutment tubes 11. Welded structures are complex to construct and require high-level welding skills. Incomplete welding affects the overall strength of the bicycle rear rack. Furthermore, welded structures leave visible weld points at the joints of the tubes, significantly impacting aesthetics and reducing consumer appeal. Therefore, addressing these shortcomings of current bicycle rear racks is one of the key research and development focuses of this invention. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide an integrated die-cast rack that improves manufacturing efficiency and has excellent structural strength.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An integrated die-cast rack, mounted on a bicycle rear fork tube, includes:

[0007] The shelving unit has a one-piece die-cast base and connecting pipe assemblies located at the bottom front and rear sides of the base. The left and right sides of the connecting pipe assemblies have straight pipe connections and bent pipe connections, respectively.

[0008] The tripod assembly has a first leg tube assembly and a second leg tube assembly. The connection between the first leg tube assembly and the corresponding straight tube connection part and the connection between the first leg tube assembly and the corresponding curved tube connection part have a first straight segment and a first inclined segment, respectively. The connection between the second leg tube assembly and the corresponding straight tube connection part and the connection between the second leg tube assembly and the corresponding curved tube connection part have a second straight segment and a second inclined segment, respectively.

[0009] The first straight section and the first oblique section of the first leg tube assembly are connected to the straight pipe connection part and the bent pipe connection part of the connecting pipe assembly, respectively, and the second straight section and the second oblique section of the second leg tube assembly are connected to the straight pipe connection part and the bent pipe connection part of the connecting pipe assembly, respectively, through a screw-locking structure or a welding structure.

[0010] Furthermore, the screw-locking structure or welded structure is located inside the first leg tube group and the second leg tube group, respectively.

[0011] Furthermore, the first leg tube assembly also has a first abutting section located at the bottom of the first straight section and the first inclined section, and the second leg tube assembly also has a second abutting section located at the bottom of the second straight section and the second inclined section, with the first abutting section and the second abutting section respectively being curved.

[0012] Furthermore, the connecting pipe assembly also has a first horizontal pipe, which is located between the straight pipe connection part and the bent pipe connection part and forms a hollow part with the base body.

[0013] Furthermore, the seat body has a bearing surface on the top and a first seat end and a second seat end on the opposite side of the first seat end on both sides, with the first seat end bending upwards and extending.

[0014] The beneficial effects of this utility model are as follows: When the connecting tube assembly is connected to the bicycle rear fork tube, it can provide better support for the seat and prevent the seat from deforming due to the weight of the load. In addition, the seat and the leg assembly are separate structures and are connected to each other by screw or welding structure. Therefore, the leg assembly can be assembled with different colors and shapes as needed, which increases its novelty and enhances consumers' desire to buy. Attached Figure Description

[0015] Figure 1 is a three-dimensional structural diagram of a bicycle rear rack in the prior art.

[0016] Figure 2 is an exploded structural diagram of this utility model.

[0017] Figure 3 is a three-dimensional structural diagram of this utility model.

[0018] Figure 4 is a top view of this utility model.

[0019] Figure 5 is a partial enlarged view of one embodiment in Figure 3.

[0020] Figure 6 is a partially enlarged view of another embodiment in Figure 3.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Shelf base; 10. Frame; 11. Support tube; 2. Leg; 3. Shelf assembly; 30. Base; 300. Bearing surface; 301. First base end; 302. Second base end; 31. Connecting tube assembly; 310. Straight tube connection; 311. Bent tube connection; 32. First horizontal tube; 320. Hollowed-out part; 4. Leg assembly; 40. First leg tube assembly; 41. Second leg tube assembly; 42. First straight section; 43. First inclined section; 44. Second straight section; 45. Second inclined section; 46. First abutment section; 47. Second abutment section; 5. Screw-locking structure; 6. Welded structure. Detailed Implementation

[0023] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0024] As shown in Figures 2 to 6, this utility model provides an integrated die-cast rack installed on the rear fork tube of a bicycle, comprising:

[0025] The shelving assembly 3 has an integral die-cast base 30 and connecting pipe assemblies 31 located at the bottom front and rear sides of the base 30. The left and right sides of the connecting pipe assembly 31 have straight pipe connecting parts 310 and bent pipe connecting parts 311, respectively.

[0026] The tripod assembly 4 has a first leg tube assembly 40 and a second leg tube assembly 41. The connection between the first leg tube assembly 40 and the corresponding straight tube connection part 310 and the connection between the first leg tube assembly 40 and the corresponding bent tube connection part 311 have a first straight section 42 and a first inclined section 43, respectively. The connection between the second leg tube assembly 41 and the corresponding straight tube connection part 310 and the connection between the second leg tube assembly 41 and the corresponding bent tube connection part 311 have a second straight section 44 and a second inclined section 45, respectively.

[0027] The first straight section 42 and the first oblique section 43 of the first leg tube group 40 are connected to the straight pipe connection part 310 and the bent pipe connection part 311 of the connecting pipe group 31, respectively. The second straight section 44 and the second oblique section 45 of the second leg tube group 41 are connected to the straight pipe connection part 310 and the bent pipe connection part 311 of the connecting pipe group 31, respectively, through a screw-locking structure 5 or a welding structure 6.

[0028] In this embodiment, the screw-locking structure 5 or the welding structure 6 is located inside the first leg tube group 40 and the second leg tube group 41, respectively.

[0029] In this embodiment, the first leg tube assembly 40 further has a first abutting section 46 disposed at the bottom of the first straight section 42 and the first inclined section 43, and the second leg tube assembly 41 further has a second abutting section 47 disposed at the bottom of the second straight section 44 and the second inclined section 45. The first abutting section 46 and the second abutting section 47 are respectively curved.

[0030] In this embodiment, the connecting pipe assembly 31 also has a first horizontal pipe 32, which is disposed between the straight pipe connecting part 310 and the bent pipe connecting part 311, and a hollow part 320 is formed between the first horizontal pipe 32 and the seat body 30.

[0031] In this embodiment, the seat body 30 has a bearing surface 300 on its upper part and a first seat end 301 and a second seat end 302 on the opposite side of the first seat end 301 on both sides. The first seat end 301 extends upward. Further, the seat body 30 has two long side tubes, two short side tubes and a plurality of support tubes. The two short side tubes are longitudinally arranged at both ends of the two long side tubes, and the plurality of support tubes are longitudinally arranged inside the two long side tubes and spaced apart from each other.

[0032] First, the one-piece die-cast seat 30 is installed on the bicycle rear fork tube, and the seat 30 extends in the direction away from the bearing surface 300 with an integrated connecting tube assembly 31. The multiple support tubes inside the seat 30 provide horizontal support force to the seat 30. The connecting tube assembly 31 further increases the overall strength of the seat 30 and prevents the seat 30 from bending and deforming when bearing heavy objects.

[0033] Similarly, the hollowed-out portion 320 of the connecting tube assembly 31 can reduce material costs and the overall weight of the seat 30. Furthermore, the first horizontal tube 32 of the connecting tube assembly 31 can further distribute the weight borne by the seat 30, making the seat 30 lighter. Moreover, the first seat end 301 of the seat 30 bends upwards near the bicycle headband, strengthening the side of the seat 30. The second seat end 302 of the seat 30 can be fitted with lighting fixtures as needed, generating light sources to alert vehicles or pedestrians behind, thus improving driving safety.

[0034] Furthermore, the connection points of the straight pipe connection portion 310 and the bent pipe connection portion 311 of the connecting pipe assembly 31 with the first straight section 42 and the first oblique section 43 of the first leg pipe assembly 40, respectively, and the connection points of the straight pipe connection portion 310 and the bent pipe connection portion 311 of the connecting pipe assembly 31 with the second straight section 44 and the second oblique section 45 of the second leg pipe assembly 41, respectively, are all connected by a screw-locking structure 5 or a welding structure 6. Moreover, the screw-locking structure 5 or the welding structure 6 is located inside the first leg pipe assembly 40 and the second leg pipe assembly 41, and is not easily noticeable when viewed from the outside, which does improve the overall aesthetics.

[0035] Through the above-mentioned technical means, when the connecting tube assembly 31 is connected to the bicycle rear fork tube, it can provide better support for the seat 30, preventing the seat 30 from deforming due to the weight of the load. In addition, the seat 30 and the leg assembly 4 are separate structures, and are connected to each other by screw locking structure 5 or welding structure 6. Therefore, the leg assembly 4 can be assembled with different colors and shapes as needed, increasing its novelty and enhancing consumers' desire to buy.

[0036] All technical features in this embodiment can be freely combined according to actual needs.

[0037] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An integrated die-cast rack, mounted on a bicycle rear fork tube, characterized in that: include: The shelving assembly has a one-piece die-cast base and connecting pipe assemblies located at the bottom front and rear sides of the base. The left and right sides of the connecting pipe assemblies have straight pipe connections and bent pipe connections, respectively. The leg assembly has a first leg assembly and a second leg assembly. The connection between the first leg assembly and the corresponding straight pipe connection and the connection between the first leg assembly and the corresponding bent pipe connection have a first straight segment and a first inclined segment, respectively. The connection between the second leg assembly and the corresponding straight pipe connection and the connection between the second leg assembly and the corresponding bent pipe connection have a second straight segment and a second inclined segment, respectively. The first straight segment and the first inclined segment of the first leg assembly are connected to the straight pipe connection and the bent pipe connection of the connecting pipe assembly, respectively, and the second straight segment and the second inclined segment of the second leg assembly are connected to the straight pipe connection and the bent pipe connection of the connecting pipe assembly, respectively, all through a screw-locking structure.

2. The integrated die-cast shelving according to claim 1, characterized in that: The screw-locking structures are located inside the first and second leg tube groups, respectively.

3. The integrated die-cast shelving according to claim 1, characterized in that: The first leg tube assembly also has a first abutting section located at the bottom of the first straight section and the first inclined section, and the second leg tube assembly also has a second abutting section located at the bottom of the second straight section and the second inclined section. The first abutting section and the second abutting section are respectively curved.

4. The integrated die-cast shelving according to claim 1, characterized in that: The connecting pipe assembly also has a first horizontal pipe, which is located between the straight pipe connection part and the bent pipe connection part and forms a hollow part with the base body.

5. The integrated die-cast shelving according to claim 1, characterized in that: The seat has a bearing surface on the top and a first seat end and a second seat end on the opposite side of the first seat end on both sides. The first seat end is bent upwards and extends.

6. An integrated die-cast rack, mounted on a bicycle rear fork tube, characterized by: include: The shelving assembly has a one-piece die-cast base and connecting pipe assemblies located at the bottom front and rear sides of the base. The left and right sides of the connecting pipe assemblies have straight pipe connections and bent pipe connections, respectively. The leg assembly has a first leg assembly and a second leg assembly. The connection between the first leg assembly and the corresponding straight pipe connection and the connection between the first leg assembly and the corresponding bent pipe connection have a first straight segment and a first inclined segment, respectively. The connection between the second leg assembly and the corresponding straight pipe connection and the connection between the second leg assembly and the corresponding bent pipe connection have a second straight segment and a second inclined segment, respectively. The first straight segment and the first inclined segment of the first leg assembly are connected to the straight pipe connection and the bent pipe connection of the connecting pipe assembly, respectively, and the second straight segment and the second inclined segment of the second leg assembly are connected to the straight pipe connection and the bent pipe connection of the connecting pipe assembly, respectively, through welded structures.

7. The integrated die-cast shelving according to claim 6, characterized in that: The welded structures are located inside the first and second leg tube groups, respectively.

8. The integrated die-cast shelving according to claim 6, characterized in that: The first leg tube assembly also has a first abutting section located at the bottom of the first straight section and the first inclined section, and the second leg tube assembly also has a second abutting section located at the bottom of the second straight section and the second inclined section. The first abutting section and the second abutting section are respectively curved.

9. The integrated die-cast shelving according to claim 6, characterized in that: The connecting pipe assembly also has a first horizontal pipe, which is located between the first straight pipe and the second bent pipe and forms a hollow section with the base.

10. The integrated die-cast shelving according to claim 6, characterized in that: The seat has a bearing surface on the top and a first seat end and a second seat end on the opposite side of the first seat end on both sides. The first seat end is bent upwards and extends.

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