Tricycle supporting arm structure and tricycle

Abstract

A supporting arm structure of a tricycle and the tricycle relate to the field of vehicles and comprise a first connecting piece and a second connecting piece, one end of the first connecting piece and one end of the second connecting piece are inserted and rotatably matched, and the other end of the first connecting piece is used for being rotatably matched with a chassis of a tricycle body of the tricycle. The second connecting piece is used for being fixedly connected with a rear axle tube of the tricycle. Through the design of the supporting arm structure of the tricycle, the stress condition of the supporting arm structure can be improved, the failure rate is reduced, the service life is prolonged, and safety risks are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vehicles, and more particularly to a tricycle armrest structure and a tricycle. BACKGROUND

[0002] In the prior art, a tricycle is provided with an armrest structure below a bottom plate, the armrest structure is connected with a rear axle pipe to stabilize the rear axle pipe. The armrest structure is generally provided as a metal frame structure, one side of which is rotatably connected with the bottom plate and the other side of which is fixedly connected with the rear axle pipe.

[0003] The inventor found in the research that the armrest structure of the prior art tricycle has at least the following disadvantages:

[0004] During the tricycle driving, when encountering uneven road conditions, the tricycle will tilt and shake, causing the armrest structure to be twisted by external force, increasing the failure rate of the armrest structure, shortening the service life of the armrest structure, and posing a safety hazard. SUMMARY

[0005] The utility model aims to provide a tricycle armrest structure and a tricycle, which can improve the stress condition of the armrest structure, reduce the failure rate, prolong the service life, and reduce the safety risk.

[0006] The embodiments of the utility model can be implemented as follows:

[0007] In a first aspect, the utility model provides a tricycle armrest structure, comprising:

[0008] A first connecting piece and a second connecting piece, one end of the first connecting piece is inserted into one end of the second connecting piece and the two are rotatably matched, the first connecting piece is used for rotatably matching with a vehicle body chassis of a tricycle, and the second connecting piece is used for fixedly connecting with a rear axle pipe of the tricycle.

[0009] In an optional embodiment, one of the first connecting piece and the second connecting piece is provided with a slot, the other of the first connecting piece and the second connecting piece is inserted into the slot, and the first connecting piece and the second connecting piece are rotatably matched in the circumferential direction of the slot.

[0010] In an optional embodiment, an inner thread groove is arranged on a slot wall of the slot, an outer circumferential surface of the first connecting piece or the second connecting piece is provided with an outer thread groove, and the inner thread groove and the outer thread groove are screw-connected.

[0011] In an optional embodiment, the first connecting member comprises a connecting head and a connecting frame, the external thread groove is arranged on the outer circumferential surface of the connecting head, the connecting head is connected with the connecting frame, and the connecting frame is used to be rotatably connected with the vehicle body chassis.

[0012] In an optional embodiment, the connecting frame comprises a first connecting rod, a second connecting rod and a reinforcing plate, one end of the first connecting rod is fixedly connected with the second connecting rod, the other end of the first connecting rod is fixedly connected with the connecting head, and two ends of the second connecting rod are used to be rotatably connected with the vehicle body chassis; and the reinforcing plate is connected with the first connecting rod and the second connecting rod simultaneously.

[0013] In an optional embodiment, the second connecting rod is provided with a bearing at each end.

[0014] In a second aspect, the utility model provides a tricycle, the tricycle comprises:

[0015] a vehicle body chassis, a rear axle pipe and the tricycle arm structure in any one of the foregoing embodiments, one end of the first connecting member is rotatably connected with the vehicle body chassis, and the rear axle pipe is fixedly connected with the second connecting member.

[0016] In an optional embodiment, the number of the tricycle arm structure is two and the tricycle arm structures are arranged at intervals in the axial direction of the rear axle pipe.

[0017] In an optional embodiment, the tricycle further comprises a shock absorber, one end of the shock absorber is connected with the rear axle pipe, and the other end of the shock absorber is connected with the vehicle body chassis.

[0018] In an optional embodiment, the shock absorber and the second connecting member are distributed on both sides of the rear axle pipe.

[0019] The beneficial effects of the embodiments of the utility model include, for example:

[0020] In summary, the tricycle arm structure provided by the embodiment is arranged in a split structure, the first connecting member and the second connecting member are inserted and matched, and the first connecting member and the second connecting member can rotate relative to each other, in the running process of the tricycle, when uneven road conditions are encountered, external force generated by the tricycle bumping is transmitted to the vehicle body chassis or the rear axle pipe, and then transmitted to the first connecting member and the second connecting member, the first connecting member and the second connecting member can rotate relative to each other, so as to release the torsion, the tricycle arm structure is not easy to twist and damage, the failure rate is low, the service life is long, and the safety risk in the use process is low. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained without creative labor on the premise of the drawings.

[0022] Figure 1 It is a schematic view of the tricycle supporting arm structure of the embodiments of the present application.

[0023] Figure 2 It is a schematic view of the connecting head of the embodiments of the present application.

[0024] Figure 3 It is a schematic view of the first connecting rod of the embodiments of the present application.

[0025] Figure 4 It is a partial schematic view of the tricycle of the embodiments of the present application.

[0026] Icon:

[0027] 100-first connecting piece; 110-connecting head; 111-external thread groove; 120-connecting frame; 121-first connecting rod; 122-second connecting rod; 123-reinforcing plate; 200-second connecting piece; 210-arc-shaped part; 220-slot; 230-internal thread groove; 300-bearing; 001-car body chassis; 002-rear axle pipe; 003-shock absorber. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0030] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0031] In the description of the utility model, it needs to be explained that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is used, it is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0032] In addition, if the terms "first", "second" and the like are used only to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.

[0034] In the prior art, the support arm structure of the rear axle pipe 002 is generally welded into an integral structure by metal profiles, and when the tricycle encounters uneven road conditions during driving, it will vibrate, and the torsion generated by the vibration is transmitted to the integral support arm structure, causing the support arm structure to twist and deform, which causes metal fatigue of the support arm structure and affects the service life, and also has safety hazards.

[0035] In view of this, the designer provides a tricycle support arm structure which can improve the stress condition, is not easy to be damaged by torsion, has long service life and high use safety.

[0036] Please refer to Figures 1-3 The embodiment provides a tricycle support arm structure, which comprises a first connecting piece 100 and a second connecting piece 200, one end of the first connecting piece 100 is inserted into one end of the second connecting piece 200 and the two are rotatably matched, the other end of the first connecting piece 100 is used for rotatably matching with a vehicle body chassis 001 of a tricycle, and the second connecting piece 200 is used for fixedly connecting with a rear axle pipe 002 of the tricycle.

[0037] As described above, the working principle of the tricycle support arm structure provided by the embodiment is as follows:

[0038] By designing the tricycle support arm structure into a split structure, the first connecting piece 100 and the second connecting piece 200 are inserted and matched, and the two can rotate relative to each other, and when the tricycle encounters uneven road conditions during driving, the external force generated by the vibration of the tricycle is transmitted to the vehicle body chassis 001 or the rear axle pipe 002, and then to the first connecting piece 100 and the second connecting piece 200, the first connecting piece 100 and the second connecting piece 200 can rotate relative to each other, thereby releasing the torsion, the support arm structure is not easy to twist and damage, the failure rate is low, the service life is long, and the safety risk is low during use.

[0039] The following embodiments illustrate the details of the tricycle arm structure of the present application by way of example.

[0040] Please refer to Figures 1-4 In the embodiment, optionally, the tricycle arm structure comprises a first connecting piece 100, a second connecting piece 200 and two bearings 300. One end of the first connecting piece 100 is inserted into one end of the second connecting piece 200 and the two are rotatably connected. The first connecting piece 100 is used to rotatably connect with the chassis 001 of the tricycle through the two bearings 300. The second connecting piece 200 is used to fixedly connect with the rear axle pipe 002 of the tricycle.

[0041] By setting the first connecting piece 100 and the second connecting piece 200 to be rotatably connected, when the chassis 001 and the rear axle pipe 002 transmit the torsion to the first connecting piece 100 and the second connecting piece 200, the first connecting piece 100 and the second connecting piece 200 can rotate relatively, thereby releasing the torsion and not being easily damaged by torsion.

[0042] Optionally, the first connecting piece 100 comprises a connecting head 110 and a connecting frame 120, the connecting head 110 is fixedly connected with the connecting frame 120, the connecting head 110 is inserted into the second connecting piece 200 and rotatably connected, and the connecting frame 120 is used to rotatably connect with the chassis 001 through the two bearings 300.

[0043] Specifically, the connecting head 110 is set as a metal pipe, the outer circumferential surface of the connecting head 110 has a thickened part, the connecting head 110 has a first shaft section and a second shaft section located on both sides of the thickened part, and the outer diameters of the first shaft section and the second shaft section are both smaller than the outer diameter of the thickened part. The outer circumferential surface of the first shaft section is provided with an external thread groove 111. The first shaft section is inserted into the second connecting piece 200 and rotatably connected.

[0044] Please refer to Figures 1-3Meanwhile, the connecting frame 120 comprises a first connecting rod 121, a second connecting rod 122 and a reinforcing plate 123. The first connecting rod 121 and the second connecting rod 122 can be hollow rods made of metal, which have high structural strength and light weight. One end of the first connecting rod 121 is fixedly connected to the second connecting rod 122 by welding, and the first connecting rod 121 is perpendicular to the second connecting rod 122. The second shaft section of the connecting head 110 is inserted into the second connecting rod 122 and fixedly connected to the second connecting rod 122 by welding. Two bearings 300 are sleeved on the two ends of the second connecting rod 122, and the second connecting rod 122 is rotatably connected to the vehicle chassis 001 through the two bearings 300. The reinforcing plate 123 can be a right-angled triangular plate, which is connected to the first connecting rod 121 and the second connecting rod 122 and fixedly connected to the first connecting rod 121 and the second connecting rod 122 by welding. Since the first connecting rod 121 and the second connecting rod 122 are hollow rods, they have light weight and high overall structural stability, are not prone to deformation and have long service life.

[0045] For reference Figure 2 In this embodiment, optionally, one end of the second connecting piece 200 is provided with an arc-shaped part 210 for clamping on the rear axle pipe 002 and tightly fitting with the outer peripheral surface of the rear axle pipe 002 to improve the connection strength. The other end of the second connecting piece 200 is provided with a slot 220, which is a circular slot. An internal thread groove 230 is arranged on the slot peripheral wall of the slot 220. The external thread groove 111 on the first shaft section is screwed with the internal thread groove 230 of the slot 220. In this way, the first shaft section and the second connecting piece 200 can not only rotate relative to each other in the circumferential direction of the slot 220, but also are not easy to be pulled out of the second connecting piece 200 in the axial direction due to the thread structure design, thereby improving the stability and reliability of the structure.

[0046] It should be understood that the second connecting piece 200 can also be provided as a hollow piece to reduce the structural weight.

[0047] It should be noted that in other embodiments, the slot 220 can also be arranged on the first connecting piece 100, and correspondingly, the second connecting piece 200 is inserted into the slot 220, and the two are inserted and matched and can rotate relative to each other.

[0048] The three-wheeled vehicle supporting arm structure provided in this embodiment can transmit the external force generated by the bumping of the three-wheeled vehicle to the vehicle chassis 001 or the rear axle pipe 002 when the three-wheeled vehicle encounters uneven road conditions during operation, and then to the first connecting piece 100 and the second connecting piece 200. The first connecting piece 100 and the second connecting piece 200 can rotate relative to each other to release the torsion, so that the supporting arm structure is not easy to twist and damage, has low failure rate, long service life and low safety risk during use.

[0049] Reference should be made to Figure 4 The embodiment also provides a tricycle, which comprises a vehicle chassis 001, a rear axle pipe 002 and two tricycle arm structures, the two tricycle arm structures are arranged at intervals in the axial direction of the rear axle pipe 002, one end of a first connecting piece 100 of each tricycle arm structure is rotatably connected with the vehicle chassis 001, and a second connecting piece 200 of each tricycle arm structure is fixedly connected with the rear axle pipe 002. The mounting and positioning of the two tricycle arm structures cooperate with the rear axle pipe 002, so that the stability is improved, the mounting difficulty is reduced, and the mounting quality is improved.

[0050] Optionally, the tricycle further comprises two shock absorbers 003, one end of each shock absorber 003 is connected with the rear axle pipe 002, and the other end is connected with the vehicle chassis 001. In addition, the two shock absorbers 003 are located on the same side of the rear axle pipe 002, and the shock absorber 003 and the second connecting piece 200 are distributed on both sides of the rear axle pipe 002, so that the stability is improved, and the damping effect is better.

[0051] It should be understood that the shock absorber 003 can be a shock absorbing spring or the like.

[0052] The tricycle provided by the embodiment has strong bump resistance, is not easy to damage the tricycle arm structure due to torsion, and has high safety during tricycle driving.

[0053] The above describes only a specific implementation manner of the tricycle, but the protection scope of the tricycle is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the tricycle, and the changes or replacements should be covered in the protection scope of the tricycle. Therefore, the protection scope of the tricycle should be subject to the protection scope of the claims.

Claims

1. A tricycle support arm structure, characterized in that, The utility model relates to a three-wheeled vehicle arm structure, comprising: a first connecting piece (100) and a second connecting piece (200), one end of the first connecting piece (100) is inserted into one end of the second connecting piece (200) and both are rotatably matched, the first connecting piece (100) is used for being rotatably matched with a vehicle body chassis (001) of a three-wheeled vehicle, and the second connecting piece (200) is used for being fixedly connected with a rear axle pipe (002) of the three-wheeled vehicle.

2. The three-wheeled vehicle arm structure according to claim 1, characterized in that: one of the first connecting piece (100) and the second connecting piece (200) is provided with a slot (220), the other of the first connecting piece (100) and the second connecting piece (200) is inserted into the slot (220), and the first connecting piece (100) and the second connecting piece (200) are rotatably matched in the circumferential direction of the slot (220).

3. The three-wheeled vehicle arm structure according to claim 2, characterized in that: an inner thread groove (230) is arranged on the slot wall of the slot (220), and an outer thread groove (111) is arranged on the outer circumferential surface of the first connecting piece (100) or the second connecting piece (200), and the inner thread groove (230) is screwed into the outer thread groove (111).

4. The three-wheeled vehicle arm structure according to claim 3, characterized in that: the first connecting piece (100) comprises a connecting head (110) and a connecting frame (120), and the outer thread groove (111) is arranged on the outer circumferential surface of the connecting head (110); the connecting head (110) is connected with the connecting frame (120), and the connecting frame (120) is used for being rotatably connected with the vehicle body chassis (001).

5. The three-wheeled vehicle arm structure according to claim 4, characterized in that: the connecting frame (120) comprises a first connecting rod (121), a second connecting rod (122) and a reinforcing plate (123), one end of the first connecting rod (121) is fixedly connected with the second connecting rod (122), the other end of the first connecting rod (121) is fixedly connected with the connecting head (110), and both ends of the second connecting rod (122) are used for being rotatably connected with the vehicle body chassis (001); and the reinforcing plate (123) is connected with the first connecting rod (121) and the second connecting rod (122) simultaneously.

6. The three-wheeled vehicle arm structure according to claim 5, characterized in that: both ends of the second connecting rod (122) are provided with bearings (300).

7. A tricycle characterized in that, The three-wheeled vehicle comprises: a vehicle body chassis (001), a rear axle pipe (002) and the three-wheeled vehicle arm structure according to any one of claims 1-6, one end of the first connecting piece (100) is rotatably connected with the vehicle body chassis (001), and the rear axle pipe (002) is fixedly connected with the second connecting piece (200).

8. The three-wheeled vehicle according to claim 7, characterized in that: the number of the three-wheeled vehicle arm structures is two and they are arranged in the axial direction of the rear axle pipe (002) in a spaced manner.

9. The tricycle according to claim 7, characterized in that: The tricycle further comprises a shock absorber (003), one end of which is connected with the rear axle pipe (002), and the other end is connected with the vehicle body chassis (001).

10. The tricycle according to claim 9, characterized in that: The shock absorber (003) and the second connecting piece (200) are distributed on both sides of the rear axle pipe (002).

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