Electric tricycle head tube steel bowl assembling tool

Abstract

The utility model discloses an electro-tricycle head tube steel bowl assembling tool which comprises an upper steel bowl assembling part and a lower steel bowl assembling part, the upper steel bowl assembling part comprises a first connecting part, a first pressing part and a rotary matching part which are coaxially arranged in sequence, the outer diameter of the first pressing part is gradually increased from inside to outside in the axial direction, and the rotary matching part can be connected with a tool. The lower steel bowl assembly part is used for driving the upper steel bowl assembly part to rotate, the lower steel bowl assembly part comprises a second connecting part and a second pressing part which are coaxially arranged, the outer diameter of the second pressing part is gradually increased from inside to outside in the axial direction, and the outer surface of the first connecting part is rotationally connected to the inner surface of the second connecting part. The first connecting part moves in the axial direction. The upper steel bowl assembly part and the lower steel bowl assembly part are respectively sleeved on the frame head tube from the upper end and the lower end and are screwed, so that the upper steel bowl and the lower steel bowl are assembled into the head tube together, the assembly time is shortened, and the assembly quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric tricycle assembly technology, and in particular to an assembly tool for the steel cup of the head tube of an electric tricycle. Background Technology

[0002] The head tube of an electric tricycle is located at the front of the frame. It is the core area where the front fork inserts and connects to the frame, supporting the front fork and steering system. The top is fixed with the cross tube (connecting the left and right handlebars), and the bottom connects with the seat tube, forming the mechanical support point at the front of the frame.

[0003] The head tube serves multiple functions, including mechanical support, steering control, and coordination assurance. It withstands the impact forces transmitted from the fork during riding, stabilizes the frame structure, and ensures riding stability. Reinforcement bars and cross braces enhance connection strength and improve overall frame rigidity. As the mounting base for the fork and handlebars, the head tube directly affects steering agility and handling precision. Adjusting internal components (such as bearings and headsets) optimizes steering smoothness and reduces the risk of jamming. Steel cups are embedded at both ends of the head tube. The functions of these cups include: 1. Connecting the fork and frame: The cups, embedded in the head tube and fork, form a stable mechanical connection point, supporting the impact forces transmitted from the fork to the frame. Tapered cups enhance stress distribution and reduce localized pressure concentration. 2. Improving structural rigidity: High-quality cups use high-strength steel to ensure the rigidity of the front of the frame, preventing deformation or loosening due to bumps. 3. Reducing frictional resistance: When the cups and bearings are in contact, the precision-machined contact surfaces reduce friction, making steering smoother. 4. Optimized steering precision: The matching design between the steel cup and the steel ball or ball bearing (such as a tapered pressure structure) improves steering response speed and avoids jamming. 4. Dust and water resistant: Some steel cups are equipped with sealing rings or silicone plugs (such as rod stop rings) to prevent mud and sand from entering the bearing and reduce the risk of corrosion. A well-sealed steel cup can adapt to complex road conditions (such as rainy days or dusty environments), reducing maintenance frequency.

[0004] In existing technologies, the steel bowl is typically installed by hammering it into place in the head tube. However, this method cannot secure the bowl in place in one go and requires repeated hammering, resulting in slow installation, low efficiency, and difficulty in controlling the force, posing a risk of damaging the bowl. Furthermore, there is a risk of workers injuring themselves during installation, increasing the likelihood of accidents. Utility Model Content

[0005] The purpose of this utility model is to provide an assembly tool for the steel cup of the head tube of an electric tricycle, addressing the shortcomings of the existing technology.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A tool for assembling a steel cup on the head tube of an electric tricycle is characterized by comprising an upper steel cup assembly and a lower steel cup assembly. The upper steel cup assembly includes a first connecting part, a first pressing part, and a rotating fitting part arranged coaxially in sequence. The outer diameter of the first pressing part gradually increases from the inside to the outside along the axial direction, and is used to press the inner side of the upper steel cup. The rotating fitting part can be connected to a tool to drive the upper steel cup assembly to rotate. The lower steel cup assembly includes a second connecting part and a second pressing part arranged coaxially. The outer diameter of the second pressing part gradually increases from the inside to the outside along the axial direction, and is used to press the inner side of the lower steel cup. The outer surface of the first connecting part is rotatably connected to the inner surface of the second connecting part. When the tool drives the rotating fitting part to rotate, the first connecting part moves axially.

[0008] Furthermore, the outer surface of the first connecting part is provided with an external thread, and the inner surface of the second connecting part is provided with an internal thread. The first connecting part and the second connecting part are rotatably connected to each other through the engagement of the external thread and the internal thread.

[0009] Furthermore, the first and second pressing parts are conical structures, which can respectively fit into the inner surfaces of the upper and lower steel bowls.

[0010] Furthermore, the surfaces of the first and second pressing parts are provided with a plurality of protrusions.

[0011] Furthermore, the first and second pressing parts are magnetic.

[0012] Furthermore, a first limiting stop is provided on the outer side of the first pressing part.

[0013] Furthermore, a second limiting stop is provided on the outer side of the second pressing part.

[0014] Furthermore, the rotating mating part includes a protrusion or a groove.

[0015] Furthermore, the bump is an octahedral bump.

[0016] Furthermore, the groove is a square groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model uses two interconnectable steel cup fittings, which are simultaneously fitted onto the head tube of the frame from both the top and bottom ends and tightened to increase the clamping force. This allows the upper and lower steel cups to be assembled into the head tube together, which not only reduces assembly time but also improves assembly quality and makes assembly more precise.

[0019] 2. The rotating fitting at the end of the upper steel cup assembly can be adapted to connect with various manual or electric tools, making it easier to tighten the upper and lower steel cup assemblies, saving time and labor costs.

[0020] Other features and advantages of this invention will be set forth in the following description or may be learned by practicing this invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the steel bowl assembly structure in an embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram of the steel bowl assembly structure according to an embodiment of the present utility model;

[0024] Figure 4 This is a cross-sectional view of the overall structure of an embodiment of the present utility model;

[0025] Figure 5 This is a cross-sectional view of the steel bowl being assembled in an embodiment of this utility model.

[0026] In the figure: 1-first connecting part, 2-first pressing part, 3-upper steel cup, 4-second connecting part, 5-second pressing part, 6-lower steel cup, 7-external thread, 8-internal thread, 9-protrusion, 10-first limiting stop, 11-second limiting stop, 12-protrusion, 13-groove, 14-head tube. Detailed Implementation

[0027] To enhance understanding of this utility model, we will now describe it in further detail with reference to the accompanying drawings. This embodiment is only used to explain this utility model and does not constitute a limitation on the scope of protection of this utility model.

[0028] like Figure 1 , 4 As shown, a specific embodiment of an electric tricycle head tube steel cup assembly tool includes an upper steel cup assembly and a lower steel cup assembly. The upper steel cup assembly includes a first connecting part 1, a first pressing part 2, and a rotating fitting part arranged coaxially in sequence. The outer diameter of the first pressing part 2 gradually increases from the inside to the outside along the axial direction and is used to press the inner side of the upper steel cup 3. The rotating fitting part can be connected to the tool and is used to drive the upper steel cup assembly to rotate. The lower steel cup assembly includes a second connecting part 4 and a second pressing part 5 arranged coaxially. The outer diameter of the second pressing part 5 gradually increases from the inside to the outside along the axial direction and is used to press the inner side of the lower steel cup 6. The outer surface of the first connecting part 1 is rotatably connected to the inner surface of the second connecting part 4. When the tool drives the rotating fitting part to rotate, the first connecting part 4 moves axially.

[0029] Preferred, such as Figure 2 , 3 As shown, the outer surface of the first connecting part 1 is provided with an external thread 7, and the inner surface of the second connecting part 4 is provided with an internal thread 8. The first connecting part 1 and the second connecting part 4 are connected to each other by the cooperation between the external thread 7 and the internal thread 8.

[0030] Preferred, such as Figure 4 , 5 As shown, the first pressing part 2 and the second pressing part 5 have a conical structure, which can fit against the inner surfaces of the upper steel cup 3 and the lower steel cup 6, respectively. Several protrusions 9 are provided on the surfaces of the first pressing part 2 and the second pressing part 5, which can increase the friction between the first pressing part 2 and the second pressing part 5 and the upper steel cup 3 and the lower steel cup 6. The first pressing part 2 and the second pressing part 5 are magnetic, which can attract the upper steel cup 3 and the lower steel cup 6, preventing them from falling off during assembly.

[0031] Preferred, such as Figure 1-4 As shown, a first limiting stop 10 is provided on the outer side of the first pressing part 2, and a second limiting stop 11 is provided on the outer side of the second pressing part 5. The first limiting stop 10 and the second limiting stop 11 can quickly position the two ends of the head tube 14 during the assembly of the steel cups and prevent the upper steel cup 3 and the lower steel cup 6 from detaching from the edges of the first pressing part 2 and the second pressing part 5.

[0032] Preferred, such as Figure 1 As shown, the rotating mating part includes a protrusion 12 and a groove 13. The protrusion 12 is an octahedral protrusion that can be used to connect tools such as wrenches. The groove 13 is a square groove that can be used to insert and connect tools of the corresponding shape, thereby making it easier to tighten the upper and lower steel cup fittings and saving time and labor costs.

[0033] The working process and principle of the above embodiments are as follows:

[0034] like Figure 5 As shown, firstly, the upper steel cup 3 and the lower steel cup 6 are placed on the first pressing part 2 and the second pressing part 5 respectively, passing through the first connecting part 1 and the second connecting part 4. Then, the first connecting part 1 and the second connecting part 4 are inserted into the upper and lower ends of the head tube 14 respectively. Next, external tools, such as adjustable wrenches or power tools, are connected to the rotating fitting part, which drives the upper steel cup assembly to rotate. As the first connecting part 1 is continuously rotated into the second connecting part 4, the first pressing part 2 and the second pressing part 5 drive the upper steel cup 3 and the lower steel cup 6 to press into the corresponding positions in the head tube 14, thus completing the assembly of the upper steel cup 3 and the lower steel cup 6.

[0035] The above specific embodiments are only for illustrating the technical concept and structural features of this utility model, and are intended to enable those skilled in the art to implement them. However, the above content does not limit the protection scope of this utility model. Any equivalent changes or modifications made in accordance with the spirit and essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A tool for assembling the steel cup of the head tube of an electric tricycle, characterized in that: The assembly includes an upper steel bowl assembly and a lower steel bowl assembly. The upper steel bowl assembly includes a first connecting part (1), a first pressing part (2), and a rotating fitting part arranged coaxially in sequence. The outer diameter of the first pressing part (2) gradually increases from the inside to the outside along the axial direction and is used to press the inner side of the upper steel bowl (3). The rotating fitting part can be connected to a tool to drive the upper steel bowl (3) assembly to rotate. The lower steel bowl assembly includes a second connecting part (4) and a second pressing part (5) arranged coaxially. The outer diameter of the second pressing part (5) gradually increases from the inside to the outside along the axial direction and is used to press the inner side of the lower steel bowl (6). The outer surface of the first connecting part (1) is rotatably connected to the inner surface of the second connecting part (4). When the tool drives the rotating fitting part to rotate, the first connecting part (1) moves along the axial direction.

2. The electric tricycle head tube steel cup assembly tool according to claim 1, characterized in that: The outer surface of the first connecting part (1) is provided with an external thread (7), and the inner surface of the second connecting part (4) is provided with an internal thread (8). The first connecting part (1) and the second connecting part (4) are rotatably connected to each other through the cooperation between the external thread (7) and the internal thread (8).

3. The electric tricycle head tube steel cup assembly tool according to claim 1, characterized in that: The first pressing part (2) and the second pressing part (5) are conical structures, which can respectively fit into the inner surfaces of the upper steel bowl (3) and the lower steel bowl (6).

4. The electric tricycle head tube steel cup assembly tool according to claim 3, characterized in that: The surfaces of the first pressing part (2) and the second pressing part (5) are provided with a plurality of protrusions (9).

5. The electric tricycle head tube steel cup assembly tool according to claim 1, characterized in that: The first pressing part (2) and the second pressing part (5) are magnetic.

6. The electric tricycle head tube steel cup assembly tool according to claim 1, characterized in that: The first pressing part (2) is provided with a first limiting stop (10) on its outer side.

7. The electric tricycle head tube steel cup assembly tool according to claim 1, characterized in that: The second pressing part (5) is provided with a second limiting stop (11) on its outer side.

8. The electric tricycle head tube steel cup assembly tool according to claim 1, characterized in that: The rotating mating part includes a protrusion (12) or a groove (13).

9. The electric tricycle head tube steel cup assembly tool according to claim 8, characterized in that: The bump (12) is an octahedral bump.

10. The electric tricycle head tube steel cup assembly tool according to claim 8, characterized in that: The groove (13) is a square groove.

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