Suspension structure and electric tricycle

Abstract

The utility model discloses a suspension structure and an electro-tricycle, which belong to the field of tricycles and comprise a tricycle suspension bracket, and the tricycle suspension bracket comprises a damper piston rod arranged on the tricycle suspension bracket and a damper cylinder body sleeved on the damper piston rod in a sliding manner. In the running process of the electro-tricycle, if jolting is generated, the damper piston rod and the damper cylinder body can slide for buffering, meanwhile, the extrusion rollers on the two sides can extrude the connecting hose in a reciprocating mode, lubricating oil in the connecting hose is promoted to flow, oil absorption cotton is wetted, and the lubricating oil is smeared on the surface of the damper piston rod; according to the utility model, the sliding of the damper piston rod and the damper cylinder body is matched, so that lubricating oil can be uniformly smeared on the damper piston rod and the damper cylinder body, the lubricating effect is realized, the damper can be kept in a good working state during driving, friction and abrasion among damper parts are reduced, the failure rate is reduced, and the service life of the damper is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of tricycles, and particularly relates to a suspension structure and an electric tricycle. Background Art

[0002] The suspension system of an electric tricycle is an important component, mainly composed of a spring and a shock absorber. The spring is responsible for bearing the weight and supporting the vehicle body, while the shock absorber is used to absorb the bumps and vibrations on the road surface.

[0003] Chinese Patent Publication No. CN220448067U discloses an electric tricycle suspension damping device, including two transmission rods located below the tricycle carriage. The transmission rods are arranged parallel to the horizontal plane. A fixed seat is welded to the side of the transmission rod. One end of the fixed seat away from the transmission rod is penetrated by a fixing column perpendicular to the horizontal plane, and the fixed seat and the fixing column are fixed by bolts. A hydraulic damping component is fixed on the top surface of the fixing column. The top end of the hydraulic damping component is in contact with the bottom surface of the tricycle carriage, and the upper end of the hydraulic damping component is fixed to a limiting plate fixed on the bottom surface of the tricycle carriage by bolts. The hydraulic damping component is arranged perpendicular to the horizontal plane. A high-elasticity spring is fixed on the top surface of the transmission rod. The high-elasticity spring is arranged perpendicular to the horizontal plane, and the top surface of the high-elasticity spring is fixedly connected to the limiting plate fixed on the bottom surface of the tricycle carriage. The utility model improves the damping ability of the tricycle by arranging the hydraulic damping component and the high-elasticity spring below the vehicle frame.

[0004] In the above-mentioned disclosed prior art, by setting a damper, the bump amplitude received by the tricycle frame can be reduced. However, as the usage time increases, the lubricating oil on the damper will gradually lose its lubrication, resulting in increased friction and accelerated wear. When adding lubricating oil, it is necessary to manually apply the lubricating oil repeatedly at the movable part of the damper, and the operation is rather cumbersome. Summary of the Utility Model

[0005] Aiming at the above-mentioned technical deficiencies, the purpose of the utility model is to provide a suspension structure and an electric tricycle to solve some or all of the problems in the above background art.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A suspension structure, comprising:

[0008] A tricycle suspension frame;

[0009] An oil storage mechanism arranged on the tricycle suspension frame for storing lubricating oil;

[0010] A drainage mechanism arranged on the oil storage mechanism for guiding the lubricating oil to flow onto the tricycle suspension frame;

[0011] The extrusion mechanism is arranged on the drainage mechanism and is used to extrude the lubricating oil in the drainage mechanism and promote its flow;

[0012] The adjustment structure is arranged on the extrusion structure and is used to adjust the extrusion force of the extrusion structure.

[0013] Preferably, the tricycle suspension frame includes:

[0014] The damper piston rod is arranged on the tricycle suspension frame;

[0015] The damper cylinder body is slidably sleeved on the damper piston rod;

[0016] Two fixed disks, and the two fixed disks are respectively fixedly sleeved on the damper piston rod and the damper cylinder body;

[0017] A spring is arranged between the two fixed disks, and the spring is sleeved on the damper piston rod and the damper cylinder body.

[0018] Preferably, the oil storage mechanism includes:

[0019] The U-shaped support plate is arranged on a corresponding fixed disk;

[0020] The oil storage box is arranged on one side of the U-shaped support plate and is used for loading and unloading lubricating oil;

[0021] The fuel filling port is arranged on one side of the oil storage box and is communicated with the oil storage box;

[0022] The threaded cover is threadedly sleeved on the fuel filling port and is used for sealing the fuel filling port.

[0023] Preferably, the drainage mechanism includes:

[0024] The connecting hose is arranged below the oil storage box and is communicated with the oil storage box;

[0025] The telescopic bellows penetrates through the U-shaped support plate and is connected to one end of the connecting hose, and the telescopic bellows is communicated with the connecting hose;

[0026] The U-shaped pipe penetrates through a corresponding fixed disk and is connected to one end of the telescopic bellows;

[0027] The fixed sleeve is arranged on one side of the damper cylinder body, and the fixed sleeve is connected to one end of the U-shaped pipe and is communicated with the U-shaped pipe;

[0028] The oil absorption cotton is arranged on the inner wall of the fixed sleeve;

[0029] Wherein, both the fixed sleeve and the oil absorption cotton are slidably sleeved on the damper piston rod.

[0030] Preferably, the extrusion mechanism includes:

[0031] Extrusion roller, used for extruding the connecting hose;

[0032] Connecting shaft, rotatably installed on the inner wall of the extrusion roller as the rotation fulcrum of the extrusion roller;

[0033] The first connecting rod and the second connecting rod can both be detachably installed on the connecting shaft;

[0034] Connecting seat, arranged on a corresponding fixed disk, and the connecting seat is rotatably installed at one end of the first connecting rod and the second connecting rod;

[0035] Wherein, one end of the connecting shaft penetrates through the first connecting rod.

[0036] Preferably, the extrusion mechanism further includes a guide groove and an inclined groove opened on the U-shaped support plate. The guide groove is communicated with the inclined groove. The connecting shaft is movably installed in the guide groove, and the connecting shaft is adapted to the inclined groove for guiding the moving direction of the connecting shaft.

[0037] Preferably, the adjusting structure includes:

[0038] Screw rod, arranged at one end of the connecting shaft;

[0039] Threaded hole, opened at one end of the second connecting rod, and the screw rod is threadedly installed in the threaded hole.

[0040] The present utility model also provides an electric tricycle, including the suspension structure described above.

[0041] The beneficial effects of the present utility model are as follows:

[0042] In the present utility model, when in use, the thread cover can be unscrewed and lubricating oil can be added to the oil storage box. During the driving process of the electric tricycle, if there is jolt, it will cause the piston rod of the damper to slide and buffer with the damper cylinder body. At the same time, it will cause the extrusion rollers on both sides to reciprocally extrude the connecting hose, promoting the flow of the lubricating oil inside, wetting the oil-absorbing cotton, and then using the contact between the oil-absorbing cotton and the piston rod of the damper to smear the lubricating oil on the surface of the piston rod of the damper. Cooperating with the sliding of the piston rod of the damper and the damper cylinder body, the lubricating oil can be evenly smeared on the piston rod of the damper and the damper cylinder body, achieving the lubricating effect, ensuring that the damper can maintain a good working state during driving, reducing the friction and wear between the components of the damper, thereby reducing the failure rate and prolonging its service life.

[0043] In the present utility model, by rotating the connecting shaft and pulling it out, the extrusion roller can be disassembled, and the extrusion force on the connecting hose can be changed by replacing extrusion rollers of different sizes, thereby adjusting the flow rate of the lubricating oil when it is extruded and adjusting the lubrication degree. Description of the Drawings

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0045] Figure 1 Structural schematic diagram of a suspension structure and an electric tricycle provided by an embodiment of the present invention;

[0046] Figure 2 Structural schematic diagram of a U-shaped support plate of a suspension structure and an electric tricycle provided by an embodiment of the present invention;

[0047] Figure 3 Structural schematic diagram of a connecting rod of a suspension structure and an electric tricycle provided by an embodiment of the present invention;

[0048] Figure 4 Structural schematic diagram of a cross-section of a fixed sleeve of a suspension structure and an electric tricycle provided by an embodiment of the present invention;

[0049] Figure 5 Structural schematic diagram of a cross-section of a connecting shaft of a suspension structure and an electric tricycle provided by an embodiment of the present invention;

[0050] Figure 6 Structural schematic diagram of a screw of a suspension structure and an electric tricycle provided by an embodiment of the present invention.

[0051] Explanation of reference numerals:

[0052] 1. Tricycle suspension frame; 101. Damper piston rod; 102. Damper cylinder block; 103. Fixed disk; 104. Spring; 2. U-shaped support plate; 201. Oil storage box; 202. Refueling port; 203. Threaded cap; 204. Connecting hose; 205. Telescopic bellows; 206. U-shaped pipe; 207. Fixed sleeve; 208. Oil absorption cotton; 3. Extrusion roller; 301. Connecting shaft; 302. Connecting rod one; 303. Connecting rod two; 304. Connecting seat; 305. Guide groove; 306. Inclined groove; 4. Screw; 401. Threaded hole. Detailed implementation manners

[0053] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0054] Embodiment 1:

[0055] As Figures 1 to 6 shown, the present utility model provides a suspension structure, including: a tricycle suspension frame 1. The tricycle suspension frame 1 includes a damper piston rod 101 arranged on the tricycle suspension frame 1, a damper cylinder 102 slidably sleeved on the damper piston rod 101, two fixing plates 103 respectively fixedly sleeved on the damper piston rod 101 and the damper cylinder 102, and a spring 104 arranged between the two fixing plates 103. The spring 104 is sleeved on the damper piston rod 101 and the damper cylinder 102.

[0056] In order to ensure the lubrication effect of the damper at the suspension during the driving of the electric tricycle and at the same time facilitate the uniform application of lubricating oil at the connection between the damper piston rod 101 and the damper cylinder 102, a storage mechanism for storing lubricating oil is arranged on the tricycle suspension frame 1, a diversion mechanism for guiding the lubricating oil to flow onto the tricycle suspension frame 1 is arranged on the storage mechanism, and an extrusion mechanism for extruding the lubricating oil in the diversion mechanism and promoting its flow is arranged on the diversion mechanism.

[0057] Among them, the storage mechanism includes a U-shaped support plate 2 arranged on a corresponding fixing plate 103, an oil storage box 201 arranged on one side of the U-shaped support plate 2 for loading and unloading lubricating oil, a fuel filler port 202 arranged on one side of the oil storage box 201 and communicating with the oil storage box 201, and a threaded cap 203 threadedly sleeved on the fuel filler port 202 for sealing the fuel filler port 202. By rotating and unscrewing the threaded cap 203, lubricating oil can be added to the oil storage box 201 through the fuel filler port 202.

[0058] Among them, the drainage mechanism includes a connecting hose 204 arranged below the oil storage box 201 and communicating with the oil storage box 201, a telescopic bellows 205 passing through the U-shaped support plate 2 and connected to one end of the connecting hose 204. The telescopic bellows 205 communicates with the connecting hose 204, a U-shaped pipe 206 passing through a corresponding fixed disk 103 and connected to one end of the telescopic bellows 205, a fixed sleeve 207 arranged on one side of the damper cylinder 102. The fixed sleeve 207 is connected to one end of the U-shaped pipe 206 and communicates with the U-shaped pipe 206, an oil-absorbing cotton 208 arranged on the inner wall of the fixed sleeve 207. Both the fixed sleeve 207 and the oil-absorbing cotton 208 are slidably sleeved on the damper piston rod 101. After adding lubricating oil into the oil storage box 201, the lubricating oil will flow into the connecting hose 204, the telescopic bellows 205 and the U-shaped pipe 206, and then flow into the fixed sleeve 207 through the U-shaped pipe 206, wetting the oil-absorbing cotton 208, and further smearing the lubricating oil on the surface of the damper piston rod 101. During the sliding process of the damper cylinder 102 and the damper piston rod 101, the lubricating oil can be evenly smeared on the contact part between the damper piston rod 101 and the damper cylinder 102.

[0059] Among them, the extrusion mechanism includes an extrusion roller 3 for extruding the connecting hose 204, a connecting shaft 301 rotatably installed on the inner wall of the extrusion roller 3 and serving as the rotation fulcrum of the extrusion roller 3, a connecting rod one 302 and a connecting rod two 303 detachably installed on the connecting shaft 301, a connecting seat 304 arranged on a corresponding fixed disk 103. The connecting seat 304 is rotatably installed at one end of the connecting rod one 302 and the connecting rod two 303. One end of the connecting shaft 301 passes through the connecting rod one 302. When the fixed disk 103 moves downward, it will drive the two extrusion rollers 3 to disengage from the extrusion of the connecting hose 204. When the fixed disk 103 moves upward, it will cause the U-shaped support plate 2 to drive the oil storage box 201 and the connecting hose 204 to rise and reset. At the same time, it will drive the two extrusion rollers 3 to approach and squeeze the connecting hose 204 again. At this time, when the U-shaped support plate 2 continues to rise, the two extrusion rollers 3 will keep squeezing the connecting hose 204, so that the connecting hose 204 is in a squeezed state when rising. Under the action of the rising of the connecting hose 204 and the extrusion of the two extrusion rollers 3, the lubricating oil inside the connecting hose 204 can be pressed to flow.

[0060] Among them, the extrusion mechanism further includes a guide groove 305 and an inclined groove 306 opened on the U-shaped support plate 2 for guiding the moving direction of the connecting shaft 301. The guide groove 305 communicates with the inclined groove 306. The connecting shaft 301 is movably installed in the guide groove 305 and is adapted to the inclined groove 306. During the movement of the U-shaped support plate 2, the moving direction of the connecting shaft 301 can be guided through the guide groove 305 and the inclined groove 306.

[0061] Embodiment 2:

[0062] On the basis of Embodiment 1, in order to adjust the extrusion force of the extrusion mechanism and thus change the flow rate of the lubricating oil when it is extruded, an adjustment structure for adjusting the extrusion force of the extrusion structure is arranged on the extrusion structure.

[0063] Among them, the adjustment structure includes a screw rod 4 arranged at one end of the connecting shaft 301 and a threaded hole 401 opened at one end of the second connecting rod 303. The screw rod 4 is threadedly installed in the threaded hole 401. By rotating the connecting shaft 301, the screw rod 4 can be driven to rotate and screwed out of the threaded hole 401. At this time, the connecting shaft 301 can be pulled out from the first connecting rod 302, and the restriction on the extrusion roller 3 can be released, so that the extrusion roller 3 can be taken out for replacement.

[0064] The present utility model also provides an electric tricycle, including a suspension structure.

[0065] Working principle:

[0066] During use, rotate and unscrew the threaded cap 203, and add lubricating oil into the oil storage box 201 through the oil filling port 202. The lubricating oil will flow into the connecting hose 204 and the telescopic bellows 205. When the electric tricycle jolts during driving, the damper cylinder body 102 will slide repeatedly on the damper piston rod 101. At the same time, the damper cylinder body 102 drives the upper fixed plate 103 to move and compress the spring 104, playing a buffering role. When the fixed plate 103 moves downward, it will drive the U-shaped support plate 2 to move. The U-shaped support plate 2 can drive the oil storage box 201 and the connecting hose 204 to move. At the same time, the moving U-shaped support plate 2 can slide on the two connecting shafts 301 through the guiding grooves 305 on both sides, and at the same time move the connecting shafts 301 into the inclined grooves 306. At this time, the continuously descending U-shaped support plate 2 will use the inclined grooves 306 on both sides to squeeze the two connecting shafts 301 to move to both sides respectively. When the connecting shafts 301 move, they can drive the first connecting rod 302 and the second connecting rod 303 to rotate on the connecting seat 304. By setting the first connecting rod 302 and the second connecting rod 303, the positions of the connecting shafts 301 can be restricted to prevent them from loosening, so that the two moving connecting shafts 301 drive the two squeezing rollers 3 to disengage from the extrusion of the connecting hose 204 respectively, enabling the lubricating oil in the oil storage box 201 to flow into the connecting hose 204, and then flow into the telescopic bellows 205 and the U-shaped pipe 206 through the connecting hose 204. The telescopic bellows 205 adopts a telescopic design, enabling it to adapt to the lifting and lowering movement of the U-shaped support plate 2. When the fixed plate 103 moves upward, it will cause the U-shaped support plate 2 to drive the oil storage box 201 and the connecting hose 204 to rise and reset. At the same time, it will guide the two connecting shafts 301 to move towards each other through the inclined grooves 306 on both sides, thereby driving the two squeezing rollers 3 to move closer again and squeeze on the connecting hose 204. At the same time, the connecting shafts 301 will correspond to the positions of the guiding grooves 305 again. At this time, when the U-shaped support plate 2 continues to rise, the guiding grooves 305 will slide onto the two connecting shafts 301 again, keeping the two squeezing rollers 3 in a state of squeezing the connecting hose 204, so that the connecting hose 204 is in a squeezed state when rising. Under the action of the rising of the connecting hose 204 and the squeezing of the two squeezing rollers 3, it can press the lubricating oil inside the connecting hose 204 to flow, enabling the lubricating oil to flow into the fixed sleeve 207 through the U-shaped pipe 206 and soak the oil-absorbing cotton 208. Under the reciprocating movement of the damper cylinder body 102 on the damper piston rod 101, the effect of repeatedly squeezing the connecting hose 204 can be achieved, and then the lubricating oil is smeared on the surface of the damper piston rod 101 through the oil-absorbing cotton 208. During the sliding process of the damper cylinder body 102 and the damper piston rod 101, the lubricating oil can be evenly smeared on the contact part between the damper piston rod 101 and the damper cylinder body 102, realizing the lubricating effect.

[0067] By rotating the connecting shaft 301, the screw rod 4 can be driven to rotate, so that the screw rod 4 can be screwed out of the threaded hole 401. At this time, the connecting shaft 301 can be withdrawn from the first connecting rod 302, and then the restriction on the extrusion roller 3 can be released, so that the extrusion roller 3 can be taken out for replacement. Different sizes of extrusion rollers 3 can be replaced for use to change the extrusion force on the connecting hose 204, and then adjust the flow rate of the lubricating oil when it is extruded.

[0068] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these modifications and variations.

Claims

1. A suspension structure, characterized in that, Comprising: A tricycle suspension frame (1); An oil storage mechanism arranged on the tricycle suspension frame (1) for storing lubricating oil; A drainage mechanism arranged on the oil storage mechanism for guiding the lubricating oil to flow onto the tricycle suspension frame (1); An extrusion mechanism arranged on the drainage mechanism for extruding the lubricating oil in the drainage mechanism and prompting it to flow; An adjustment structure arranged on the extrusion structure for adjusting the extrusion force of the extrusion structure.

2. The suspension structure according to claim 1, wherein, The tricycle suspension frame (1) comprises: A damper piston rod (101) arranged on the tricycle suspension frame (1); A damper cylinder body (102) slidably sleeved on the damper piston rod (101); Two fixed discs (103), the two fixed discs (103) are respectively fixedly sleeved on the damper piston rod (101) and the damper cylinder body (102); A spring (104) arranged between the two fixed discs (103), and the spring (104) is sleeved on the damper piston rod (101) and the damper cylinder body (102).

3. A suspension structure as claimed in claim 1, characterized in that, The oil storage mechanism comprises: A U-shaped support plate (2) arranged on a corresponding fixed disc (103); An oil storage box (201) arranged on one side of the U-shaped support plate (2) for loading and unloading lubricating oil; An oil filling port (202) arranged on one side of the oil storage box (201) and communicating with the oil storage box (201); A threaded cap (203) threadedly sleeved on the oil filling port (202) for sealing the oil filling port (202).

4. A suspension structure according to claim 1, characterized in that, The drainage mechanism comprises: A connecting hose (204) arranged below the oil storage box (201) and communicating with the oil storage box (201); An expansion bellows (205) passing through the U-shaped support plate (2) and connected to one end of the connecting hose (204), and the expansion bellows (205) communicates with the connecting hose (204); A U-shaped pipe (206) passing through a corresponding fixed disc (103) and connected to one end of the expansion bellows (205); A fixed housing (207) arranged on one side of the damper cylinder body (102), and the fixed housing (207) is connected to one end of the U-shaped pipe (206) and communicates with the U-shaped pipe (206); An oil absorption cotton (208) arranged on the inner wall of the fixed housing (207); Wherein, both the fixed housing (207) and the oil absorption cotton (208) are slidably sleeved on the damper piston rod (101).

5. A suspension structure according to claim 1, characterized in that, The extrusion mechanism comprises: An extrusion roller (3) for extruding the connecting hose (204); A connecting shaft (301) rotatably installed on the inner wall of the extrusion roller (3) as the rotation fulcrum of the extrusion roller (3); A first connecting rod (302) and a second connecting rod (303) both detachably installed on the connecting shaft (301); A connecting seat (304) arranged on a corresponding fixed disc (103), and the connecting seat (304) is rotatably installed at one ends of the first connecting rod (302) and the second connecting rod (303); Wherein, one end of the connecting shaft (301) penetrates out of the first connecting rod (302).

6. A suspension structure according to claim 1, characterized in that, The extrusion mechanism further includes a guiding groove (305) and an inclined groove (306) formed in the U-shaped support plate (2). The guiding groove (305) is communicated with the inclined groove (306). The connecting shaft (301) is movably installed in the guiding groove (305). The connecting shaft (301) is adapted to the inclined groove (306) and is used to guide the moving direction of the connecting shaft (301).

7. A suspension structure according to claim 1, characterized in that The adjusting structure includes: a screw rod (4) arranged at one end of the connecting shaft (301); a threaded hole (401) formed at one end of the second connecting rod (303), and the screw rod (4) is threadedly installed in the threaded hole (401).

8. An electric tricycle, characterized in that, It includes the suspension structure according to any one of claims 1-7.

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