Electric tricycle head tube steel bowl assembling tool

Abstract

The invention discloses an electric 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] The invention relates to the technical field of electric tricycle assembly, in particular to an electric tricycle head pipe steel bowl assembly tool. Background Art

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

[0003] The functions of the head tube include mechanical support, steering control, coordination guarantee, etc. It bears the impact force transmitted by the front fork during riding, stabilizes the body structure, and ensures riding stability. The connection strength is enhanced by reinforcing rods, cross braces and other components to improve the overall rigidity of the frame. As the installation base of the front fork and the handlebar, the head tube directly affects the steering flexibility and control accuracy. By adjusting internal components (such as bearings and bowls), the steering smoothness is optimized and the risk of jamming is reduced. Steel bowls are embedded at both ends of the head tube. The functions of the steel bowls include: 1. Connecting the front fork and the frame. The steel bowls are embedded in the head tube and the front fork to form a stable mechanical connection point to support the impact force transmitted by the front fork to the main body of the frame. The tapered steel bowl can enhance the force dispersion ability and reduce local pressure concentration. 2. Improve structural rigidity. The high-quality steel bowl is made of high-strength steel to ensure the rigidity of the front part of the frame and avoid deformation or loosening due to bumps. 3. Reduce friction resistance. When the steel bowl cooperates with the bearing, the friction is reduced through the precision-machined contact surface, making the steering operation smoother. 4. Optimize steering accuracy. The matching design of steel bowl and steel ball or ball bearing (such as conical pressure structure) can improve steering response speed and avoid jamming. 4. Dustproof and waterproof. Some steel bowls are equipped with sealing rings or silicone plugs (such as rod stop rings) to prevent mud and sand from invading the inside of the bearing and reduce the risk of rust. Steel bowls with good sealing can adapt to complex road conditions (such as rainy days or dusty environments) and reduce maintenance frequency.

[0004] In the prior art, the steel bowl is generally installed by hammering, and the upper and lower steel bowls are respectively knocked into the corresponding positions in the head pipe by the hammer's knocking force. However, this method of installing the steel bowl cannot be fixed in place in one go, and it needs to be knocked repeatedly. Therefore, the installation speed is slow, the efficiency is low, and the force is difficult to control, which poses a risk of damaging the steel bowl. During the installation process, there is also the risk of workers hurting themselves, which is easy to cause safety accidents. Summary of the invention

[0005] The invention aims to provide an electric tricycle head pipe steel bowl assembly tool in view of the defects of the prior art.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A tool for assembling a steel bowl of a head tube of an electric tricycle, characterized in that it includes an upper steel bowl assembly and a lower steel bowl assembly, the upper steel bowl assembly includes a first connecting portion, a first clamping portion, and a rotating fitting portion coaxially arranged in sequence, the outer diameter of the first clamping portion gradually increases from the inside to the outside along the axial direction, and is used to cooperate with and squeeze the inner side of the upper steel bowl, the rotating fitting portion can be connected to a tool to drive the upper steel bowl assembly to rotate, the lower steel bowl assembly includes a second connecting portion and a second clamping portion coaxially arranged, the outer diameter of the second clamping portion gradually increases from the inside to the outside along the axial direction, and is used to cooperate with and squeeze the inner side of the lower steel bowl, the outer surface of the first connecting portion is rotatably connected to the inner surface of the second connecting portion, and when the tool drives the rotating fitting portion to rotate, the first connecting portion moves axially.

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

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

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

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

[0012] Furthermore, a first limiting rib is disposed on the outer side of the first pressing portion.

[0013] Furthermore, a second limiting rib is disposed on the outer side of the second pressing portion.

[0014] Furthermore, the rotational fitting portion includes a protrusion or a groove.

[0015] Furthermore, the convex block is a regular octahedral convex block.

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

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention uses two interconnected upper and lower steel bowl assembly parts, which are respectively sleeved on the frame head pipe from the upper and lower ends and tightened to increase the clamping force, so that the upper and lower steel bowls can be assembled into the head pipe together, which not only reduces the assembly time, but also improves the assembly quality and makes the assembly more accurate.

[0019] 2. The rotating fitting part arranged at the end of the upper steel bowl assembly can adapt to the connection with various manual or electric tools, so as to more conveniently tighten the upper steel bowl assembly and the lower steel bowl assembly, saving time and labor costs.

[0020] Other features and advantages of the present invention will be set forth in the following description or may be learned by practicing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the upper steel bowl assembly according to an embodiment of the present invention;

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

[0024] Figure 4 It is a cross-sectional view of the overall structure of an embodiment of the present invention;

[0025] Figure 5 This is a cross-sectional view of an embodiment of the present invention when a steel bowl is assembled.

[0026] In the figure: 1-first connecting part, 2-first clamping part, 3-upper steel bowl, 4-second connecting part, 5-second clamping part, 6-lower steel bowl, 7-external thread, 8-internal thread, 9-protrusion, 10-first limiting rib, 11-second limiting rib, 12-bump, 13-groove, 14-head pipe. DETAILED DESCRIPTION

[0027] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

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

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

[0030] Preferably, Figure 4 , 5 As shown, the first pressing part 2 and the second pressing part 5 are conical structures, which can respectively fit with the inner surface of the upper steel bowl 3 and the lower steel bowl 6. A plurality of protrusions 9 are arranged on the surface of the first pressing part 2 and the second pressing part 8, which can increase the friction force of the first pressing part 2 and the second pressing part 5 on the upper steel bowl 3 and the lower steel bowl 6. The first pressing part 2 and the second pressing part 5 are magnetic, which can adsorb the upper steel bowl 3 and the lower steel bowl 6 to prevent them from falling off during assembly.

[0031] Preferably, Figure 1-4 As shown, a first limiting rib 10 is provided on the outer side of the first pressing portion 2, and a second limiting rib 11 is provided on the outer side of the second pressing portion 5. The first limiting rib 10 and the second limiting rib 11 can be quickly positioned at both ends of the head pipe 14 during the assembly of the steel bowl, and prevent the upper steel bowl 3 and the lower steel bowl 6 from detaching from the edges of the first pressing portion 2 and the second pressing portion 5.

[0032] Preferably, Figure 1 As shown, the rotating mating portion includes a protrusion 12 and a groove 13. The protrusion 12 is a regular octahedral protrusion, which can be used with tools such as connecting wrenches. The groove 13 is a square groove, which can be used with tools of corresponding shapes for insertion and connection, thereby making it more convenient to tighten the upper steel bowl assembly and the lower steel bowl assembly, saving time and labor costs.

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

[0034] like Figure 5 As shown, first, the upper steel bowl 3 and the lower steel bowl 6 are respectively passed through the first connecting part 1 and the second connecting part 4 and placed on the first clamping part 2 and the second clamping part 5; then, the first connecting part 1 and the second connecting part 4 are respectively inserted from the upper and lower ends of the head pipe 14; then, an external tool, such as an adjustable wrench or an electric tool, is connected to the rotating fitting part to drive the upper steel bowl assembly to rotate; as the first connecting part 1 is continuously screwed into the second connecting part 4, the first clamping part 2 and the second clamping part 5 drive the upper steel bowl 3 and the lower steel bowl 6 to be pressed into the corresponding positions in the head pipe 14, thereby completing the assembly of the upper steel bowl 3 and the lower steel bowl 6.

[0035] The above specific implementation methods are only for illustrating the technical concept and structural features of the present invention, and the purpose is to enable relevant persons familiar with this technology to implement it. However, the above content does not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should fall within the protection scope of the present invention.

Claims

1. An electric tricycle head tube steel bowl assembly tool, characterized by: The invention comprises an upper steel bowl assembly and a lower steel bowl assembly. The upper steel bowl assembly comprises a first connecting portion (1), a first clamping portion (2), and a rotating fitting portion which are coaxially arranged in sequence. The outer diameter of the first clamping portion (2) gradually increases from the inside to the outside along the axial direction, and is used to cooperate with and extrude the inner side of the upper steel bowl (3). The rotating fitting portion can be connected to a tool to drive the upper steel bowl (3) assembly to rotate. The lower steel bowl assembly comprises a second connecting portion (4) and a second clamping portion (5) which are coaxially arranged. The outer diameter of the second clamping portion (5) gradually increases from the inside to the outside along the axial direction, and is used to cooperate with and extrude the inner side of the lower steel bowl (6). The outer surface of the first connecting portion (1) is rotatably connected to the inner surface of the second connecting portion (4). When the tool drives the rotating fitting portion to rotate, the first connecting portion (1) moves axially.

2. According to claim 1, the electric tricycle head tube steel bowl assembly tool is characterized by: 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. According to claim 1, the electric tricycle head tube steel bowl assembly tool is characterized by: The first pressing portion (2) and the second pressing portion (5) are conical structures and can fit with the inner surfaces of the upper steel bowl (3) and the lower steel bowl (6) respectively.

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

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

6. The electric tricycle head tube steel bowl assembly tool according to claim 1, characterized in that: A first limiting rib (10) is provided on the outer side of the first pressing portion (2).

7. The electric tricycle head tube steel bowl assembly tool according to claim 1, characterized in that: A second limiting rib (11) is provided on the outer side of the second pressing portion (5).

8. The electric tricycle head tube steel bowl assembly tool according to claim 1, characterized in that: The rotational fitting portion comprises a protrusion (12) or a groove (13).

9. The electric tricycle head tube steel bowl assembly tool according to claim 8, characterized in that: The convex block (12) is a regular octahedral convex block.

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

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