Electric tricycle brake connecting rod, brake system and electric tricycle

Abstract

A brake connecting rod for electric tricycles includes a connecting rod body, a rocker arm, and a support part. The connecting rod body includes a main body and a first connecting part located at both ends, and its cross section is a polygonal structure with an axial connecting hole provided inside. The connecting rod body includes a hand brake rocker arm and a foot brake rocker arm. The hand brake rocker arm is respectively mounted on the first connecting part of the connecting rod body and fixed by a limiter. The foot brake rocker arm is mounted on the main body of the connecting rod body and connected and fixed with the first through hole. The support part includes at least two fixing sleeves rotatably mounted with the main body, and the fixing sleeve is connected with the spring slot of the main body by a retaining spring. When the brake connecting rod fails, the rocker arm can be conveniently removed for replacement or repair without disassembling the entire connecting rod body, which facilitates the non-destructive disassembly and assembly of the entire connecting rod body, thereby improving the assembly efficiency of the brake connecting rod for electric tricycles. The cross section of the first connecting part is set to a polygon, so that when the hand brake rocker arm is connected to it, the axial rotation of the rocker arm is avoided, thereby providing a reliable torque for braking.

Description

Technical Field

[0001] The present application relates to the technical field of production and processing of electric tricycles, and in particular to a brake connecting rod, a brake system and an electric tricycle for an electric tricycle. Background Art

[0002] As a means of transport for people and goods, electric tricycles are widely used in daily transportation, field transportation, express mail or factory rotation and other short-distance transportation occasions due to their energy-saving, environmental protection, mobility and flexibility. In these applications, due to the influence of riding conditions, operating environment and other factors, the brake system needs to be used frequently. The brake connecting rod is the main component of the brake system, so it has high requirements for the structure and performance of the brake connecting rod to meet the frequent braking needs under loading and operation.

[0003] The existing brake link body and the rocker arm are welded. When the link body is rotatably connected to the frame, the link body is not easy to disassemble, resulting in complex assembly and disassembly of the brake link, inconvenient replacement of accessories, increased production and maintenance costs, and affected production efficiency. Utility Model Content

[0004] The purpose of the present application is to provide an electric tricycle brake connecting rod, a brake system and an electric tricycle, which can improve the assembly efficiency of the brake connecting rod and save production costs.

[0005] The technical solution adopted by the utility model is to provide a brake connecting rod for an electric tricycle, comprising

[0006] The connecting rod body comprises a main body and a first connecting part, wherein the main body is provided with a first through hole perpendicular to its axial direction and at least two annular spring clamping grooves; the first connecting part is located at both ends of the main body, has a polygonal cross section, and has an axial connecting hole inside;

[0007] The rocker arm comprises a hand brake rocker arm and a foot brake rocker arm, wherein the hand brake rocker arms are respectively sleeved on the first connecting portion of the connecting rod body and fixed by a stopper; the foot brake rocker arm is sleeved on the main body of the connecting rod body and connected and fixed to the first through hole;

[0008] The support part comprises at least two fixing sleeves rotatably mounted with the main body, the fixing sleeves are connected with the spring clamping grooves of the main body through clamping springs, and the support part is connected and fixed with the frame.

[0009] Preferably, the handbrake rocker arm includes a first handbrake rocker arm and a second handbrake rocker arm, the first handbrake rocker arm is provided with a first mounting hole, a second mounting hole and a third mounting hole, the second handbrake rocker arm is provided with a first mounting hole and a second mounting hole, the first mounting hole is a polygonal hole, which is used to be mounted with the first connecting part of the connecting rod body; the second mounting hole is located at an end away from the connecting rod body, which is used to connect the brake rod; the third mounting hole is used to connect the handbrake.

[0010] Preferably, the first handbrake rocker arm also has a plurality of fourth mounting holes, and the fourth mounting holes are used to respectively connect the reset member and the circuit breaker.

[0011] Preferably, the first handbrake rocker arm has two arms, the first ends of the two arms intersect to form a vertex, the first mounting hole is located at the vertex, the second mounting hole and the third mounting hole are respectively located at the second ends of the two arms, and the fourth mounting hole is arranged at a position close to the second end of the arm.

[0012] Preferably, the first handbrake rocker arm has three arms, and the three arms form an angle between them. The second mounting hole, the third mounting hole and the fourth mounting hole are respectively arranged at the ends of the three arms.

[0013] Preferably, the foot brake rocker arm has a fifth mounting hole and a sixth mounting hole, the fifth mounting hole axially extends a sleeve, the sleeve is provided with a second through hole, the second through hole corresponds to the first through hole, and is connected and fixed by a bolt structure; the sixth mounting hole is located at one end away from the connecting rod body, and is used to connect the foot brake.

[0014] Preferably, the limiting member includes a limiting portion and a second connecting portion, the limiting portion is connected and fixed to the second connecting portion, the cross-sectional area of ​​the limiting portion is larger than the apertures of the first mounting hole and the third mounting hole, and the second connecting portion can be threadedly connected and fixed to the connecting hole.

[0015] Preferably, the fixing sleeve is a bearing, which is fixed to the vehicle frame by welding.

[0016] Preferably, the main body of the connecting rod body is a solid round rod structure to increase its strength.

[0017] Preferably, the cross section of the first connecting portion is a quadrilateral.

[0018] An electric tricycle brake system comprises a foot brake, a hand brake, a brake assembly and the above-mentioned electric tricycle brake connecting rod, wherein the electric tricycle brake connecting rod is connected to the foot brake, the hand brake and the brake assembly.

[0019] An electric tricycle comprises a frame and the electric tricycle brake system described above, wherein the electric tricycle brake system is installed on the frame.

[0020] The beneficial effects of the utility model include:

[0021] A brake connecting rod for an electric tricycle includes a connecting rod body, a rocker arm, and a supporting part. The connecting rod body includes a main body and a first connecting part. The main body is provided with a first through hole perpendicular to its axial direction and at least two annular spring retaining grooves. The first connecting part is located at both ends of the main body, and its cross section is a polygonal structure with an axial connecting hole provided inside. The connecting rod has a hand brake rocker arm and a foot brake rocker arm, and the hand brake rocker arm is respectively mounted on the first connecting part of the connecting rod body and fixed by a limiter. The foot brake rocker arm is mounted on the main body of the connecting rod body and connected and fixed to the first through hole. The supporting part includes at least two fixing sleeves rotatably mounted with the main body, and the fixing sleeve is connected to the spring retaining groove of the main body by a retaining spring, and the supporting part is connected and fixed to the frame.

[0022] The above arrangement changes the connection between the connecting rod body and the rocker arm from the traditional welding fixing method to a detachable movable connection method. When the brake connecting rod fails, the rocker arm can be easily removed for replacement or repair without disassembling the entire connecting rod body. The cross-section of the first connecting portion is set to a polygon, so that the axial rotation of the rocker arm is avoided when the handbrake rocker arm is connected thereto, providing a reliable torque for braking. The setting of the spring slot and the setting of the first through hole form a movable connection between the connecting rod body and the support part, and between the foot brake rocker arm and the main body of the connecting rod body, which facilitates the non-destructive disassembly and assembly of the entire connecting rod body. The technical solution of the utility model improves the assembly efficiency of the brake connecting rod of the electric tricycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a brake connecting rod for an electric tricycle of the utility model;

[0024] Figure 2 This is a schematic diagram of the connecting rod body structure of the utility model;

[0025] Figure 3 for Figure 2 Left view of

[0026] Figure 4 for Figure 2 A cross-sectional schematic diagram of

[0027] Figure 5 It is a schematic diagram of the first structural form of the first handbrake rocker arm;

[0028] Figure 6 It is a schematic diagram of one structural form of the second hand brake rocker arm;

[0029] Figure 7 It is a schematic diagram of the second structural form of the first handbrake rocker arm;

[0030] Figure 8 It is a structural schematic diagram of the foot brake rocker arm;

[0031] Fig. 9 It is a schematic diagram of the limiter structure.

[0032] As shown in the figure, 1-connecting rod body, 11-main body, 111-first through hole, 112-spring slot, 12-first connecting part, 121-connecting hole;

[0033] 2- rocker arm, 21- handbrake rocker arm, 211- first mounting hole, 212- second mounting hole, 213- third mounting hole, 214- fourth mounting hole, 215- first handbrake rocker arm, 2151- support arm, 216- second handbrake rocker arm;

[0034] 22- foot brake rocker arm, 221- fifth mounting hole, 2211- sleeve body, 2212- second through hole, 222- sixth mounting hole;

[0035] 3- Support part,

[0036] 4-limiting member, 41-limiting portion, 42-second connecting portion. DETAILED DESCRIPTION

[0037] like Figure 1-4 As shown, this embodiment provides a brake connecting rod for an electric tricycle, including a connecting rod body 1, a rocker arm 2 and a support portion 3. The connecting rod body 1 includes a main body 11 and a first connecting portion 12. The main body 11 is a solid round rod structure, and the main body 11 is provided with a first through hole 111 perpendicular to its axial direction, and is provided with at least two annular spring slots 112. The first connecting portion 12 is located at both ends of the main body 11, and its cross section is a polygonal structure, and an axial connecting hole 121 is provided inside. The connecting hole 121 in this embodiment is a threaded hole. The cross section of the first connecting portion 12 in this embodiment is set as a quadrilateral, and can also be a pentagon, hexagon, etc. in actual use. The rocker arm 2 has a hand brake rocker arm 21 and a foot brake rocker arm 22. The hand brake rocker arms 21 are respectively mounted on the first connecting portion 11 of the connecting rod body 1 and fixed by a limiter 4. The support portion 3 includes at least two fixing sleeves rotatably mounted with the main body 11 , the fixing sleeves are connected to the spring clamping grooves 112 of the main body 11 via clamping springs, and the support portion 3 is connected and fixed to the vehicle frame.

[0038] Specifically, the handbrake rocker arm 21 includes a first handbrake rocker arm 215 and a second handbrake rocker arm 216. Figure 5-6As shown, the first handbrake rocker arm 215 is provided with a first mounting hole 211, a second mounting hole 212 and a third mounting hole 213, and the second handbrake rocker arm 216 is provided with a first mounting hole 211 and a second mounting hole 212. The first mounting hole 211 is a polygonal hole, which is used to fit with the first connecting portion 12 of the connecting rod body; the second mounting hole 212 is located at an end away from the connecting rod body, which is used to connect the brake rod, and is respectively connected to the brake assembly through the brake rod; the third mounting hole 213 is used to connect the handbrake.

[0039] In one possible embodiment of the application, Figure 5 As shown, the first structural form of the first handbrake rocker arm 215 is that it has two support arms 2151, the first ends of the two support arms intersect to form a vertex, the first mounting hole 211 is located at the vertex, the second mounting hole 212 and the third mounting hole 213 are respectively located at the second ends of the two support arms, one is used to connect the brake assembly, and the other is used to connect the handbrake.

[0040] In one possible embodiment of the application, Figure 5 As shown, the first handbrake rocker arm 215 also has a plurality of fourth mounting holes, and the fourth mounting holes 214 are used to respectively connect the reset member and the circuit breaker.

[0041] In one possible embodiment of the application, Figure 6 As shown, one structural form of the second handbrake rocker arm 216 is that it has a support arm for connecting to the brake assembly.

[0042] In one possible embodiment of the application, Figure 7 As shown, the second structural form of the first handbrake rocker arm 215 is that it has three arms, and the three arms form an angle between them. The second mounting hole 212, the third mounting hole 213 and the fourth mounting hole 214 are respectively arranged at the ends of the three arms.

[0043] In one possible embodiment of the application, Figure 8 As shown, the foot brake rocker arm has a fifth mounting hole 221 and a sixth mounting hole 222. The fifth mounting hole 221 axially extends a sleeve 2211. The sleeve 2211 is provided with a second through hole 2212. The second through hole 2212 corresponds to the first through hole 111 and is connected and fixed by a bolt structure. The sixth mounting hole 222 is located at an end away from the connecting rod body and is used to connect the foot brake. According to the needs of different vehicles, the first through hole 111 can be set at different positions.

[0044] In one possible embodiment of the application, Figure 1 As shown, the fixing sleeve of the support part 3 is a bearing. The bearing is connected to the frame by welding or by bolts.

[0045] In one possible embodiment of the application, Fig. 9 As shown, the limiting member 4 includes a limiting portion 41 and a second connecting portion 42, the limiting portion 41 is connected and fixed to the second connecting portion 42, the cross-sectional area of ​​the limiting portion 41 is larger than the aperture of the first mounting hole 211, and the second connecting portion 42 can be connected and fixed to the connecting hole 121.

[0046] When assembling the brake connecting rod of the electric tricycle of the present application, firstly, the foot brake rocker arm 42 is mounted on the connecting rod body, and then it is moved to the position of the first through hole 111, so that the second through hole 2212 corresponds to the first through hole 111, and the foot brake rocker arm is connected and fixed to the main body of the connecting rod body with bolts and nuts;

[0047] The support part 3 is connected and fixed to the vehicle frame, the connecting rod body is installed on the support part, and the connecting rod body 1 is fixedly connected to the inner ring rotating part of the support part 3 by a circlip, so that the connecting rod body 1 can rotate relative to the support part;

[0048] The handbrake rocker arm 42 is assembled with the first connecting portion of the connecting rod body, and then the limiting member 4 is connected and fixed with the connecting hole 121 to achieve the connection and fixation of the handbrake rocker arm 42 .

[0049] The above-mentioned setting of the utility model can realize the rapid assembly of the brake connecting rod of the electric tricycle. During maintenance, the disassembly is also very convenient and quick, and non-destructive disassembly and assembly and partial replacement can be achieved, thus saving costs.

[0050] The utility model also provides an electric tricycle brake system, comprising a foot brake, a hand brake, a brake assembly and an electric tricycle brake connecting rod as described above, wherein the electric tricycle brake connecting rod is connected to the foot brake, the hand brake and the brake assembly.

[0051] The utility model also provides an electric tricycle, comprising a frame and the electric tricycle brake system, wherein the electric tricycle brake system is installed on the frame.

Claims

1. A brake connecting rod for an electric tricycle, characterized in that: include The connecting rod body comprises a main body and a first connecting part, wherein the main body is provided with a first through hole perpendicular to its axial direction and at least two annular spring clamping grooves; the first connecting part is located at both ends of the main body, has a polygonal cross section, and has an axial connecting hole inside; The rocker arm comprises a hand brake rocker arm and a foot brake rocker arm, wherein the hand brake rocker arms are respectively sleeved on the first connecting portion of the connecting rod body and fixed by a stopper; the foot brake rocker arm is sleeved on the main body of the connecting rod body and connected and fixed to the first through hole; The support part comprises at least two fixing sleeves rotatably mounted with the main body, the fixing sleeves are connected with the spring slots of the main body through a retaining spring, and the support part is connected and fixed with the frame.

2. The brake connecting rod of an electric tricycle according to claim 1, characterized in that: The handbrake rocker arm includes a first handbrake rocker arm and a second handbrake rocker arm, the first handbrake rocker arm is provided with a first mounting hole, a second mounting hole and a third mounting hole, the second handbrake rocker arm is provided with a first mounting hole and a second mounting hole, the first mounting hole is a polygonal hole, which is used to be mounted with the first connecting part of the connecting rod body; the second mounting hole is located at an end away from the connecting rod body, which is used to connect the brake rod; the third mounting hole is used to connect the handbrake.

3. The brake connecting rod of an electric tricycle according to claim 2, characterized in that: The first handbrake rocker arm also has a plurality of fourth mounting holes, and the fourth mounting holes are used to respectively connect the reset member and the circuit breaker.

4. The brake connecting rod of an electric tricycle according to claim 3, characterized in that: The first handbrake rocker arm has two arms, the first ends of the two arms intersect to form a vertex, the first mounting hole is located at the vertex, the second mounting hole and the third mounting hole are respectively located at the second ends of the two arms, and the fourth mounting hole is arranged at a position close to the second end of the arm.

5. The brake connecting rod of an electric tricycle according to claim 3, characterized in that: The first handbrake rocker arm has three arms, and an angle is formed between the three arms. The second mounting hole, the third mounting hole and the fourth mounting hole are respectively arranged at the ends of the three arms.

6. The brake connecting rod of an electric tricycle according to claim 1, 2, 3, 4 or 5, characterized in that: The foot brake rocker arm has a fifth mounting hole and a sixth mounting hole. The fifth mounting hole axially extends a sleeve body, and the sleeve body is provided with a second through hole. The second through hole corresponds to the first through hole and is connected and fixed by a bolt structure; the sixth mounting hole is located at an end away from the connecting rod body and is used to connect the foot brake.

7. The brake connecting rod of an electric tricycle according to claim 2, characterized in that: The limiting member includes a limiting portion and a second connecting portion, wherein the limiting portion is connected and fixed to the second connecting portion, the cross-sectional area of ​​the limiting portion is larger than the apertures of the first mounting hole and the third mounting hole, and the second connecting portion can be threadedly connected and fixed to the connecting hole.

8. The brake connecting rod of an electric tricycle according to claim 1, characterized in that: The fixing sleeve is a bearing, which is welded and fixed to the vehicle frame; the main body of the connecting rod body is a solid round rod structure; and the cross section of the first connecting portion is a quadrilateral.

9. An electric tricycle braking system, characterized in that: The invention comprises a foot brake, a hand brake, a brake assembly and a brake connecting rod for an electric tricycle as claimed in any one of claims 1 to 8, wherein the brake connecting rod for the electric tricycle is connected to the foot brake, the hand brake and the brake assembly.

10. An electric tricycle, characterized in that: It comprises a vehicle frame and the electric tricycle brake system as claimed in claim 9, wherein the electric tricycle brake system is mounted on the vehicle frame.

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