Weld joint distance auxiliary fixing structure
By installing a sleeve on the outside of the rotating block and support tube of the motorcycle pedal bracket, and by utilizing the cooperation of the positioning pin and the positioning pin fixing hole, the problem of welding stress concentration is solved, and the service life of the motorcycle pedal bracket is extended.
Patent Information
- Application Number
- CN202423309714.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Stress concentration at the weld joint of the rotating block and support tube in the existing motorcycle pedal bracket leads to a shortened service life of the weld joint.
A sleeve is fitted over the outside of the rotating block and the strut tube, and the contact area and positioning accuracy are increased by the cooperation of the positioning pin and the positioning pin fixing hole, and the hole position is prevented from being offset. High-strength aluminum alloy material is used.
It enhances the support effect of the weld, extends the service life of the weld joint, and improves the fixing effect.
Smart Images

Figure CN223833719U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of support welding technology, specifically a weld seam distance auxiliary fixing structure. Background Technology
[0002] A footstool stand, as an auxiliary device for motorcycles, is mainly used to support the motorcycle and prevent it from tipping over or being damaged when parked. In specific situations, such as long-term parking, maintenance, or strong winds, a motorcycle stand can improve the stability of the vehicle and prevent accidents.
[0003] Motorcycle pedal brackets are mainly made by inserting the end of a rotating block into a support tube and then fixing the two together by welding. The existing rotating block has a small end size, resulting in a short insertion end into the tube. In addition, the rotating bushing and the support tube are clearance fit, which will cause stress concentration at the weld after welding, greatly reducing the service life of the weld connection between the rotating bushing and the support tube.
[0004] Based on this, a weld seam distance auxiliary fixing structure is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content
[0005] The purpose of this invention is to provide an auxiliary fixing structure for weld seam distance to solve the problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A weld seam distance auxiliary fixing structure includes a sleeve, which is sleeved on the outside of a rotating block, and a support tube is also provided below the rotating block; the sleeve includes a sleeve body, which has a connection mounting hole, and a pair of through positioning pin fixing holes are provided on the side of the sleeve body. There is a fixing plane on each side of the sleeve body, and two fixing rod positioning holes are provided on the fixing plane.
[0008] Preferably, the rotating block includes a rotating block body, on which a rotating shaft hole is provided, and a tube sleeve fixing part is fixedly connected to the bottom of the rotating block body. Below the tube sleeve fixing part, a strut tube connecting part is provided. A positioning pin mounting hole is provided on each side of the strut tube connecting part, and a guide post is fixedly connected in the positioning pin mounting hole. The rotating block body is also provided with two through fixing rod mounting slots.
[0009] Preferably, the length of the strut tube connection is 13.5 mm.
[0010] Preferably, the strut tube includes a strut tube body, in which a rotating block mounting groove is provided, and on each side of the strut tube body is a positioning pin mating hole. The side of the strut tube body is also symmetrically provided with two fixing rod mating holes that cooperate with the fixing rod mounting groove.
[0011] Preferably, the dimensions of the rotating block mounting groove match the diameter of the strut tube connection.
[0012] Preferably, a positioning pin is also provided in the positioning pin mounting hole. The positioning pin includes a cylindrical positioning pin, and the bottom of the cylindrical positioning pin has a guide post mounting hole that mates with the guide post. The cylindrical positioning pin is connected to a rotating block by a spring.
[0013] Preferably, a fixing rod is also provided in the fixing rod mounting groove. The fixing rod includes a fixing rod body, and both ends of the fixing rod body are fixed to the fixing plane by fixing nuts.
[0014] Preferably, the strut tube is made of high-strength aluminum alloy die casting.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. This utility model effectively increases the contact area between the rotating block and the support tube by sleeves are fitted on the outside of the rotating block and the support tube, which plays an auxiliary supporting role at the welded joint.
[0017] 2. This utility model also solves the problem of not being able to observe the internal hole position when the tube sleeve is connected to the rotating block and the support tube by the positioning pin and the positioning pin fixing hole through the cooperation between the positioning pin and the positioning pin fixing hole, and prevents the positioning hole of the fixing rod and the mating hole of the fixing rod from being offset, which would affect the fixing effect. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model.
[0019] Figure 2 This is a cross-sectional view of the rotating block in this utility model.
[0020] Figure 3 This is a schematic diagram of the strut tube in this utility model.
[0021] Figure 4 This is a schematic diagram of the structure of the sleeve in this utility model.
[0022] Figure 5 This is a schematic diagram of the positioning pin in this utility model.
[0023] Figure 6This is a schematic diagram of the structure of the fixing rod in this utility model.
[0024] Reference numerals in the attached drawings: 100, Rotating block; 101, Rotating block body; 102, Rotating shaft hole; 103, Sleeve fixing part; 104, Support rod tube connection part; 105, Positioning pin mounting hole; 106, Guide column; 107, Fixing rod mounting groove; 200, Support rod tube; 201, Support rod tube body; 202, Rotating block mounting groove; 203, Positioning pin mating hole; 204, Fixing rod mating hole; 300, Sleeve; 301, Sleeve body; 302, Connection mounting hole; 303, Positioning pin fixing hole; 304, Fixing plane; 305, Fixing rod positioning hole; 400, Positioning pin; 401, Cylindrical positioning pin; 402, Guide column mounting hole; 403, Spring; 500, Fixing rod; 501, Fixing rod body; 502, Fixing nut. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0026] In one embodiment, such as Figure 1 and Figure 4 As shown, a weld seam distance auxiliary fixing structure includes a sleeve 300, which is sleeved on the outside of a rotating block 100. A support rod tube 200 is also provided below the rotating block 100. The sleeve 300 includes a sleeve body 301, in which a connection mounting hole 302 is provided to simultaneously fix the rotating block 100 and the support rod tube 200. The side of the sleeve body 301 is also provided with a pair of through positioning pin fixing holes 303, which are used to cooperate with positioning pins 400 to better align the positions of the fixing rod positioning holes 305 and the fixing rod mating holes 204. Each side of the sleeve body 301 is provided with a fixing plane 304 to fix the sleeve 300 to the rotating block 100 and the support rod tube 200. The fixing plane 304 is also provided with two fixing rod positioning holes 305.
[0027] In one embodiment, such as Figure 2As shown, the rotating block 100 includes a rotating block body 101, on which a rotating shaft hole 102 is provided. A sleeve fixing part 103 is also fixedly connected to the bottom of the rotating block body 101, and is connected to the sleeve 300 by a threaded connection. Below the sleeve fixing part 103, there is also a support rod tube connecting part 104, which is used to connect the rotating block 100 and the support rod tube 200, and fix the two by welding. Each side of the support rod tube connecting part 104 has a positioning pin mounting hole 105, and a guide post 106 is fixedly connected in the positioning pin mounting hole 105 to guide the sliding of the positioning pin 400. The rotating block body 101 also has two through fixing rod mounting grooves 107.
[0028] In one embodiment, such as Figure 2 As shown, the length of the strut tube connection 104 is 13.5 mm, which is greater than the length of the strut tube connection component in the prior art, so that the stress after welding is distributed from the weld to the strut tube connection 104.
[0029] In one embodiment, such as Figure 3 As shown, the strut tube 200 includes a strut tube body 201, in which a rotating block mounting groove 202 is provided. Each side of the strut tube body 201 is provided with a positioning pin mating hole 203 to facilitate the positioning pin 400 to pass through the strut tube 200. The side of the strut tube body 201 is also symmetrically provided with two fixing rod mating holes 204 that cooperate with the fixing rod mounting groove 107 to facilitate the fixing rod 500 to pass through the strut tube 200.
[0030] In one embodiment, such as Figure 3 and Figure 4 As shown, the dimensions of the rotating block mounting groove 202 are matched with the diameter of the strut tube connection 104. The diameter of the strut tube connection 104 is slightly larger than the inner diameter of the rotating block mounting groove 202, so that the rotating block 100 and the strut tube 200 can be transitionally fitted, relieving the pressure at the welding point.
[0031] In one embodiment, such as Figure 4 and Figure 5 As shown, a positioning pin 400 is also provided in the positioning pin mounting hole 105. The positioning pin 400 includes a cylindrical positioning pin 401. The bottom of the cylindrical positioning pin 401 is provided with a guide post mounting hole 402 that cooperates with the guide post 106. The cylindrical positioning pin 401 is connected to the rotating block 100 through a spring 403. After the positioning pin mating hole 203 and the positioning pin fixing hole 303 are aligned, the positioning pin 400 pops out under the action of the spring 403 to fix the sleeve 300.
[0032] In one embodiment, such as Figure 6 As shown, a fixing rod 500 is also provided in the fixing rod mounting groove 107. The fixing rod 500 includes a fixing rod body 501. Both ends of the fixing rod body 501 are fixed to the fixing plane 304 by fixing nuts 502 to prevent the sleeve 300 from sliding.
[0033] In one embodiment, such as Figure 3 As shown, the strut tube 200 is made of high-strength aluminum alloy die casting.
[0034] Working principle: First, the rotating block 100 is inserted into the support tube 200 through the support tube connector 104, and the rotating block 100 and the support tube 200 are welded and fixed at the connection. Next, the sleeve 300 is fitted onto the rotating block 100 through the connection mounting hole 302. The sleeve 300 is rotated until the positioning pin 400 is popped out by the spring 403. Finally, the fixing rod body 501 is passed through the fixing rod positioning hole 305, and both ends of the fixing rod body 501 are fixed on the fixing plane 304 through the fixing nuts 502, thus completing the fixing of the sleeve 300.
[0035] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A weld seam distance auxiliary fixing structure, comprising a sleeve (300), the sleeve (300) being fitted over the outside of a rotating block (100), and a support tube (200) being fitted below the rotating block (100); characterized in that, The sleeve (300) includes a sleeve body (301), in which a connection mounting hole (302) is provided, and a pair of through positioning pin fixing holes (303) are also provided on the side of the sleeve body (301). A fixing plane (304) is provided on each side of the sleeve body (301), and two fixing rod positioning holes (305) are also provided on the fixing plane (304).
2. The weld seam distance auxiliary fixing structure according to claim 1, characterized in that, The rotating block (100) includes a rotating block body (101), on which a rotating shaft hole (102) is provided. A sleeve fixing part (103) is also fixedly connected to the bottom of the rotating block body (101). A strut tube connecting part (104) is also provided below the sleeve fixing part (103). A positioning pin mounting hole (105) is provided on each side of the strut tube connecting part (104). A guide post (106) is fixedly connected in the positioning pin mounting hole (105). The rotating block body (101) is also provided with two through fixing rod mounting slots (107).
3. The weld seam distance auxiliary fixing structure according to claim 2, characterized in that, The length of the strut tube connection (104) is 13.5 mm.
4. The weld seam distance auxiliary fixing structure according to claim 2, characterized in that, The strut tube (200) includes a strut tube body (201), in which a rotating block mounting groove (202) is provided. A positioning pin mating hole (203) is provided on each side of the strut tube body (201). The side of the strut tube body (201) is also symmetrically provided with two fixing rod mating holes (204) that cooperate with the fixing rod mounting groove (107).
5. The weld seam distance auxiliary fixing structure according to claim 4, characterized in that, The dimensions of the rotating block mounting groove (202) are matched with the diameter of the strut tube connection (104).
6. The weld seam distance auxiliary fixing structure according to claim 2, characterized in that, A positioning pin (400) is also provided in the positioning pin mounting hole (105). The positioning pin (400) includes a cylindrical positioning pin (401). The bottom of the cylindrical positioning pin (401) is provided with a guide post mounting hole (402) that cooperates with the guide post (106). The cylindrical positioning pin (401) is connected to the rotating block (100) by a spring (403).
7. The weld seam distance auxiliary fixing structure according to claim 2, characterized in that, A fixing rod (500) is also provided in the fixing rod mounting groove (107). The fixing rod (500) includes a fixing rod body (501), and the two ends of the fixing rod body (501) are fixed to the fixing plane (304) by fixing nuts (502).
8. The weld seam distance auxiliary fixing structure according to claim 1, characterized in that, The strut tube (200) is made of high-strength aluminum alloy by die casting.