Riveted structure boundary beam bearing type tricycle frame

Fixing the key structure of the tricycle frame with rivets solves the problems of poor appearance, low quality and high welding cost in the existing technology, and achieves a dual improvement in the firmness and cost of the frame.

CN223479227UActive Publication Date: 2025-10-28KUNMING JUNMA HARDWARE MACHINERY FACTORY
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Patent Information

Application Number
CN202423253145.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-10-28
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

The existing tricycle frame is manufactured through cutting and welding processes, which has poor appearance processing, low quality, high welding cost, and the welds are prone to rust after long-term use, which reduces the firmness.

Method used

Rivets are used to fix the key structures of the tricycle frame, which reduces the number of welds, increases the firmness of the frame, and reduces welding costs.

Benefits of technology

The overall quality and firmness of the tricycle frame are improved, welding costs are reduced, and the risk of rust at the welds is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of tricycle frames, and discloses a rivet structure boundary beam bearing type tricycle frame which comprises two lower longitudinal beams, a lower longitudinal beam front end connecting plate, a shock absorber mounting sleeve, an upper longitudinal beam, a cross beam, a first connecting plate, a second connecting plate and a rear spring front support. The left ends of the two lower longitudinal beams are connected with the lower end of the lower longitudinal beam front end connecting plate through rivets; the shock absorber mounting sleeve is arranged on the left side of the upper end of the lower longitudinal beam front end connecting plate, and the cylindrical hollow part of the shock absorber mounting sleeve obliquely extends downwards; the number of the upper longitudinal beams is two, the two upper longitudinal beams are arranged above the two lower longitudinal beams respectively, the number of the first connecting plates and the number of the second connecting plates are a pair respectively, and the upper ends and the lower ends of the first connecting plates and the upper ends and the lower ends of the second connecting plates are connected with the upper longitudinal beams and the lower longitudinal beams respectively through rivets. The two ends of the cross beam are respectively connected with the two upper longitudinal beams or the two lower longitudinal beams through rivets; the two rear spring front supports are arranged at the rear end of the lower longitudinal beam, and the two ends of each rear spring front support are connected with the upper longitudinal beam and the lower longitudinal beam through rivets respectively.
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Description

Technical Field

[0001] This application relates to the field of tricycle frame technology, specifically to a riveted structure side beam load-bearing tricycle frame. Background Technology

[0002] Currently, there are many types of tricycles on the market. The existing tricycle frames are all made through material cutting and welding processes, which makes it easy to have poor appearance, low quality, and high welding costs. Secondly, after the electric vehicle has been used for a long time, the welded joints are prone to rust, which reduces its sturdiness. Summary of the Invention

[0003] The purpose of this application is to provide a riveted structure side beam load-bearing tricycle frame, which solves the problems of existing tricycle frames being made by cutting and welding, resulting in poor appearance, low quality, and high welding costs; secondly, the welded joints of electric vehicles are prone to rust after prolonged use, reducing their strength.

[0004] To achieve the above objectives, this application provides a riveted structure side beam load-bearing tricycle frame, including: a lower longitudinal beam, a lower longitudinal beam front end connecting plate, a shock absorber mounting sleeve, an upper longitudinal beam, a crossbeam, a first connecting plate, a second connecting plate, and a rear spring front bracket, wherein...

[0005] There are two lower longitudinal beams, and the left ends of the two lower longitudinal beams are riveted to the lower end of the connecting plate at the front end of the lower longitudinal beam.

[0006] The shock absorber mounting sleeve is located on the left side of the upper end of the connecting plate at the front end of the lower longitudinal beam, and the cylindrical hollow part of the shock absorber mounting sleeve extends obliquely downward.

[0007] There are two upper longitudinal beams, which are respectively set above the two lower longitudinal beams. There is a pair of first connecting plates and second connecting plates, and the upper and lower ends of the first connecting plates and second connecting plates are respectively riveted to the upper and lower longitudinal beams.

[0008] The two ends of the crossbeam are respectively riveted to two upper longitudinal beams or two lower longitudinal beams;

[0009] The rear spring front bracket has two members and is located at the rear end of the lower longitudinal beam. The two ends of the rear spring front bracket are respectively riveted to the upper longitudinal beam and the lower longitudinal beam.

[0010] Optionally, it also includes:

[0011] The driver protection bar is located at the upper end of the front connecting plate of the lower longitudinal beam. Both ends of the driver protection bar extend to the front and rear sides of the front connecting plate of the lower longitudinal beam, respectively. The length direction of the driver protection bar is parallel to the length direction of the crossbeam.

[0012] Optionally, the crossbeam includes a first crossbeam, a second crossbeam, a first tail crossbeam, a second tail crossbeam, and a third tail crossbeam.

[0013] Optionally, the two ends of the first crossbeam are respectively connected to the two first connecting plates with rivets, the two ends of the second crossbeam are respectively connected to the two second connecting plates with rivets, the two ends of the first tail crossbeam are respectively connected to the two rear spring front bracket rivets, and the two ends of the second tail crossbeam and the third tail crossbeam are respectively connected to the two upper longitudinal beams with rivets.

[0014] Optionally, it also includes:

[0015] There are two front connecting rods for the bow plate, which are respectively set on the two front brackets of the rear spring. The two ends of the front connecting rods are respectively connected to the two side walls of the front brackets of the rear spring.

[0016] Optionally, it also includes:

[0017] There are two bow plate rear connecting plates, which are respectively set at the rear ends of the two upper longitudinal beams. The two ends of the bow plate rear connecting plates are respectively connected to the side walls of the mounting bracket set at the rear ends of the two upper longitudinal beams.

[0018] The embodiments of this application have the following advantages:

[0019] Compared with existing technologies, the riveted structure side beam load-bearing tricycle frame provided by the above technical solution uses rivets to fix the key structure of the tricycle frame, reducing the amount of welding, which can increase the frame's robustness, reduce welding costs, and enhance the overall quality of the frame. Attached Figure Description

[0020] To more clearly illustrate the embodiments of this application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of a riveted side beam load-bearing tricycle frame provided for at least one embodiment of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Lower longitudinal beam front end connecting plate; 2. Driver's protective bar; 3. Shock absorber mounting sleeve; 4. Lower longitudinal beam; 5. First crossbeam; 6. First connecting plate; 7. Second crossbeam; 8. Second connecting plate; 9. Upper longitudinal beam; 10. First tail crossbeam; 11. Rear spring front bracket; 12. Front connecting rod of the bow plate; 13. Second tail crossbeam; 14. Rear connecting plate of the bow plate; 15. Third tail crossbeam. Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0027] This application provides a riveted side beam load-bearing tricycle frame, referenced... Figure 1 ,include:

[0028] Lower longitudinal beam 4, lower longitudinal beam front end connecting plate 1, shock absorber mounting sleeve 3, upper longitudinal beam 9, crossbeam, first connecting plate 6, second connecting plate 8, rear spring front bracket 11, wherein,

[0029] There are two lower longitudinal beams 4, and the left ends of the two lower longitudinal beams 4 are riveted to the lower end of the connecting plate 1 at the front end of the lower longitudinal beam.

[0030] The shock absorber mounting sleeve 3 is located on the left side of the upper end of the connecting plate 1 at the front end of the lower longitudinal beam, and the cylindrical hollow of the shock absorber mounting sleeve 3 extends obliquely downward.

[0031] There are two upper longitudinal beams 9, which are respectively set above the two lower longitudinal beams 4. There is a pair of first connecting plates 6 and second connecting plates 8. The upper and lower ends of the first connecting plates 6 and second connecting plates 8 are respectively riveted to the upper longitudinal beams 9 and lower longitudinal beams 4.

[0032] The two ends of the crossbeam are respectively riveted to two upper longitudinal beams 9 or two lower longitudinal beams 4;

[0033] There are two rear spring front brackets 11, which are located at the rear end of the lower longitudinal beam 4. The two ends of the rear spring front brackets 11 are respectively riveted to the upper longitudinal beam 9 and the lower longitudinal beam 4.

[0034] Specifically, the shock absorber mounting sleeve 3 is used to install and fix the shock absorber, which in turn is used to connect to the front wheel.

[0035] Specifically, the rear spring front bracket 11 is used to suspend the bow plate, enhance the shock absorption effect of the tricycle, and is riveted to the lower longitudinal beam 4 and the first tail cross beam 10 to strengthen the rear stability of the frame.

[0036] In some embodiments, it also includes:

[0037] The driver protection bar 2 is located at the upper end of the front end connecting plate 1 of the lower longitudinal beam. Both ends of the driver protection bar 2 extend to the front and rear sides of the front end connecting plate 1 of the lower longitudinal beam, respectively. The length direction of the driver protection bar 2 is parallel to the length direction of the crossbeam.

[0038] Specifically, a protective plate can be installed on each of the left and right ends of the driver protection bar 2 to protect the driver and also to block the wind.

[0039] In some embodiments, the crossbeam includes a first crossbeam 5, a second crossbeam 7, a first tail crossbeam 10, a second tail crossbeam 13, and a third tail crossbeam 15.

[0040] In some embodiments, the two ends of the first crossbeam 5 are respectively connected to two first connecting plates 6 with rivets, the two ends of the second crossbeam 7 are respectively connected to two second connecting plates 8 with rivets, the two ends of the first tail crossbeam 10 are respectively connected to two rear spring front brackets 11 with rivets, and the two ends of the second tail crossbeam 13 and the third tail crossbeam 15 are respectively connected to two upper longitudinal beams 9 with rivets.

[0041] In some embodiments, it also includes:

[0042] There are two front connecting rods 12 for the bow plate, which are respectively installed on the two front supports 11 of the rear spring. The two ends of the front connecting rods 12 are respectively connected to the two side walls of the front supports 11 of the rear spring.

[0043] In some embodiments, it also includes:

[0044] There are two bow plate rear connecting plates 14, which are respectively set at the rear ends of the two upper longitudinal beams 9. The two ends of the bow plate rear connecting plates 14 are respectively connected to the side walls of the mounting bracket set at the rear ends of the two upper longitudinal beams 9.

[0045] Specifically, the front connecting rod 12 and the rear connecting plate 14 of the bow plate are connected to both ends of the bow plate through connecting plates and shaft parts, respectively. The bow plate is also fixed to the rear axle. This allows the vehicle to disperse and absorb the impact and vibration caused by uneven road surfaces when driving on uneven roads.

[0046] In summary, compared with the prior art, the riveted side beam load-bearing tricycle frame provided in this application uses rivets to fix the key structure of the tricycle frame, reducing the amount of welding, which can increase the frame's robustness, reduce welding costs, and enhance the overall quality of the frame.

[0047] Note that, unless otherwise explicitly stated, all features disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by alternative features for achieving the same, equivalent, or similar purpose. Therefore, unless explicitly stated otherwise, each disclosed feature is merely one example of a set of equivalent or similar features. Where used, "further," "preferably," "even further," and "more preferably" are simple starting points for describing another embodiment based on the foregoing embodiments, the combination of which with the foregoing embodiments constitutes the complete configuration of another embodiment. Any combination of several "further," "preferably," "even further," or "more preferably" settings following the same embodiment constitutes yet another embodiment.

[0048] In the implementation of functions and steps, the corresponding functions and steps in the various embodiments may occur in a different order than those shown. For example, two consecutive functions and steps may actually be executed or implemented substantially in parallel, and they may sometimes be executed or implemented in reverse order, depending on the functions involved.

[0049] Although this application has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this application fall within the scope of protection claimed in this application.

Claims

1. A riveted structure side beam load-bearing tricycle frame, characterized in that, include: The components include: lower longitudinal beam, lower longitudinal beam front connecting plate, shock absorber mounting sleeve, upper longitudinal beam, cross beam, first connecting plate, second connecting plate, and rear spring front bracket. There are two lower longitudinal beams, and the left ends of the two lower longitudinal beams are riveted to the lower end of the connecting plate at the front end of the lower longitudinal beam. The shock absorber mounting sleeve is located on the left side of the upper end of the connecting plate at the front end of the lower longitudinal beam, and the cylindrical hollow part of the shock absorber mounting sleeve extends obliquely downward. There are two upper longitudinal beams, which are respectively set above the two lower longitudinal beams. There is a pair of first connecting plates and second connecting plates, and the upper and lower ends of the first connecting plates and second connecting plates are respectively riveted to the upper and lower longitudinal beams. The two ends of the crossbeam are respectively riveted to two upper longitudinal beams or two lower longitudinal beams; The rear spring front bracket has two members and is located at the rear end of the lower longitudinal beam. The two ends of the rear spring front bracket are respectively riveted to the upper longitudinal beam and the lower longitudinal beam.

2. The riveted structure side beam load-bearing tricycle frame according to claim 1, characterized in that, Also includes: The driver protection bar is located at the upper end of the front connecting plate of the lower longitudinal beam. Both ends of the driver protection bar extend to the front and rear sides of the front connecting plate of the lower longitudinal beam, respectively. The length direction of the driver protection bar is parallel to the length direction of the crossbeam.

3. The riveted structure side beam load-bearing tricycle frame according to claim 1, characterized in that, The crossbeam includes a first crossbeam, a second crossbeam, a first tail crossbeam, a second tail crossbeam, and a third tail crossbeam.

4. The riveted structure side beam load-bearing tricycle frame according to claim 3, characterized in that, The two ends of the first crossbeam are respectively connected to the two first connecting plates with rivets. The two ends of the second crossbeam are respectively connected to the two second connecting plates with rivets. The two ends of the first tail crossbeam are respectively connected to the two rear spring front bracket rivets. The two ends of the second tail crossbeam and the third tail crossbeam are respectively connected to the two upper longitudinal beams with rivets.

5. The riveted structure side beam load-bearing tricycle frame according to claim 1, characterized in that, Also includes: There are two front connecting rods for the bow plate, which are respectively set on the two front brackets of the rear spring. The two ends of the front connecting rods are respectively connected to the two side walls of the front brackets of the rear spring.

6. The riveted structure side beam load-bearing tricycle frame according to claim 1, characterized in that, Also includes: There are two bow plate rear connecting plates, which are respectively set at the rear ends of the two upper longitudinal beams. The two ends of the bow plate rear connecting plates are respectively connected to the side walls of the mounting bracket set at the rear ends of the two upper longitudinal beams.