Quick disassembly type trolley power-assisted wheel set

Abstract

The utility model relates to the field of quick-release trolley power-assisted wheel sets, which comprise wheels and wheel axles rotating relative to the wheels, one end of each wheel axle is vertically mounted at the center of a circular plane on the inner side of the corresponding wheel, and the other end of each wheel axle is vertically mounted at the center of a circular plane on the inner side of the corresponding wheel. And the other end of the axle is detachably connected with one end of an axle on the same axis with the axle. Compared with the prior art, one axle is adopted at the conventional wheel tread, the two axles and one axle are adopted, the axles and the axles are fixedly connected, special tools and special maintenance personnel are not needed when the wheels are replaced or maintained, the disassembly is very convenient, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of wheels, in particular to a quick-detachable power-assisted wheel set for a trolley. Background Art

[0002] There are three common ways to install wheels: 1. The wheels of large vehicles are put on the bolts of the wheel hubs at both ends of the axle, and then tighten the nuts to fix them; 2. The wheels of carts are fixed on the plate-like or block-like structure on which the universal wheel is fixed; 3. The outer end of the axle is provided with a thread, and the wheel is put on the axle and then tightened. In addition to two-wheeled vehicles, the first third situation is mainly applicable to three-wheeled or four-wheeled vehicles. However, small vehicles with left and right wheels at both ends of the existing axles require professionals or professional tools to repair or replace wheels, which is very inconvenient. This is especially obvious in the field of carts.

[0003] Therefore, a wheel set that is easy to disassemble is needed to solve the above-mentioned technical problems. Utility Model Content

[0004] The utility model relates to the field of quick-detachable trolley power-assisted wheel set, which includes a wheel, and a wheel axle that rotates relative to the wheel, one end of the wheel axle being vertically mounted at the center of a circular plane inside the wheel, and the other end of the wheel axle being detachably connected to one end of an axle on the same axis as the wheel axle. The utility model mainly solves the problem that it is inconvenient to repair or replace the existing wheel of the existing trolley.

[0005] In order to solve the above technical problems, the present utility model provides the following technical solutions:

[0006] A quick-detachable trolley power-assisted wheel set comprises a wheel, and the quick-detachable trolley power-assisted wheel set also comprises a wheel axle which rotates relative to the wheel, one end of the wheel axle is vertically mounted at the center of a circular plane inside the wheel, and the other end of the wheel axle is detachably connected to one end of an axle on the same axis as the wheel axle.

[0007] As a further solution of the utility model: the axle is tubular, a transverse through hole is provided at one end of the axle close to the wheel axle, a transverse through hole is provided at one end of the wheel axle close to the axle, and the axle and the wheel axle are connected by a pin passing through the two transverse through holes.

[0008] As a further solution of the utility model: the wheel axle is a D-shaped axle, and the axle is a D-shaped tubular structure whose end surface matches the wheel axle.

[0009] As a further solution of the utility model: the quick-detachable trolley power-assisted wheel group also includes a braking system, which includes a brake gear, a brake seat, a brake rocker arm and a brake pedal; the brake gear is mounted on the end of the wheel axle close to the inner side of the wheel, and the brake gear rotates with the wheel; the brake seat is triangular, including a first angle, a second angle and a third angle, the first angle is mounted together with the axle and the wheel axle, and the second angle is fixedly connected to the frame; the brake rocker arm is triangular, including a fourth angle, a fifth angle and a sixth angle, the fourth angle is rotatably connected to the third angle, the fifth angle is fixedly connected to the brake pedal, and the sixth angle is provided with a brake rod in the same direction as the gear of the brake gear.

[0010] As a further solution of the utility model: a pedal plate is provided at the longitudinal center of the brake pedal rod.

[0011] As a further solution of the utility model: chamfers are radially arranged between every two adjacent tooth grooves of the brake gear.

[0012] As a further solution of the utility model: the wheel includes a tire, a rim, a hub, a motor, an electric control board, a first bearing, a second bearing, a bracket, a driving wheel, a driven wheel, a belt and a spoke;

[0013] The rim, the spokes and the hub form a receiving cavity, and the tire, rim, spokes and hub are all sleeved on the wheel axle;

[0014] The motor, the bracket, the driven wheel, and the first bearing are all arranged in the accommodating cavity, the first bearing is sleeved on the end of the wheel shaft away from the axle, the driven wheel is sleeved on the outer layer of the first bearing, the motor is rotatably connected to the driving wheel, and the belt transmission connects the driving wheel and the driven wheel;

[0015] The bracket is a plate-shaped rectangular structure sleeved on the wheel axle, one end of the bracket is fixedly mounted with the motor and the driving wheel, and the other end of the bracket is fixedly mounted with the electric control board;

[0016] The wheel hub is sleeved on the outer layer of the second bearing, and the second bearing is sleeved on one end of the wheel shaft close to the axle.

[0017] As a further solution of the utility model: a tensioning mechanism including a tensioning wheel is arranged between the driving wheel and the driven wheel.

[0018] As a further solution of the utility model: the first bearing and the second bearing are fixed to the wheel by a shaft retaining spring.

[0019] As a further solution of the utility model: the wheel includes a spoke, and the spoke is fixedly mounted together with the brake gear.

[0020] The utility model relates to a quick-detachable trolley power-assisted wheel set with beneficial effects: since the utility model relates to a quick-detachable trolley power-assisted wheel set with the following structure, the quick-detachable trolley power-assisted wheel set includes a wheel, and the quick-detachable trolley power-assisted wheel set also includes a wheel axle that rotates relative to the wheel, one end of the wheel axle is vertically mounted at the center of the circular plane inside the wheel, and the other end of the wheel axle is detachably connected to one end of the axle on the same axis as the wheel axle. The conventional wheel base uses one axle, while the utility model uses two wheel axles and one axle, and the wheel axles are fixedly connected to the axles. When replacing or repairing the wheel, no professional tools or professional maintenance personnel are required, and disassembly is very convenient, which greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. The drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the following specific implementation methods, they are used to explain the present application, but do not constitute a limitation to the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. Elements or components with the same reference numerals in the drawings are represented as similar corresponding elements or components. Unless otherwise stated, the dimensions in the drawings do not constitute a proportional limitation.

[0022] Figure 1 This is a schematic diagram of the structure of the quick-detachable power-assisted wheel assembly of the utility model;

[0023] Figure 2 This is the assembly diagram of the brake system of the quick-detachable trolley power-assisted wheel set of the utility model;

[0024] Figure 3 This is a schematic diagram of the brake seat structure of the utility model quick-detachable trolley power-assisted wheel assembly;

[0025] Figure 4 This is a schematic diagram of the brake rocker structure of the utility model quick-detachable trolley power-assisted wheel assembly;

[0026] Figure 5 This is a schematic diagram of the motion trajectory of the brake rod of the power-assisted wheel assembly of the quick-detachable handcart of the utility model;

[0027] Figure 6 This is an exploded view of the utility model quick-detachable power-assisted wheel assembly of the trolley;

[0028] Figure 7 It is an enlarged view of the A part of the power-assisted wheel assembly of the quick-detachable handcart of the utility model.

[0029] In the figure: 100-wheel, 110-tire, 120-rim, 121-first bearing, 122-shaft retaining spring, 123-driving wheel, 124-tensioning mechanism, 1241-tensioning wheel, 125-shaft sleeve, 126-second bearing, 130-spoke, 140-hub, 150-motor, 160-electric control board, 170-bracket, 180-driven wheel, 190-belt, 200-axle, 300-brake system system, 310-brake gear, 311-chamfer, 312-tooth groove, 320-brake seat, 321-first angle, 322-second angle, 323-third angle, 324-first positioning hole, 325-second positioning hole, 330-brake rocker arm, 331-fourth angle, 332-fifth angle, 333-sixth angle, 334-brake rod, 335-locating pin, 340-brake pedal rod, 341-pedal plate, 400-axle. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the following is a further detailed description of a quick-detachable trolley power-assisted wheel set of the utility model in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "center", "longitudinal", "lateral", "up", "down", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0033] like Figure 1 , Figure 2 As shown, a quick-detachable trolley power-assisted wheel set includes a wheel 100, and the quick-detachable trolley power-assisted wheel set also includes an axle 200 that rotates relative to the wheel 100, one end of the axle 200 is vertically installed at the center of the circular plane inside the wheel 100, and the other end of the axle 200 is detachably connected to one end of an axle 400 on the same axis as the axle 400.

[0034] The wheel shaft 200 and the axle 400 are detachably connected by a method such as key sleeve connection or coupling connection.

[0035] like Figure 1 , Figure 2 As shown, as a further solution of the utility model: the axle 400 is tubular, and a transverse through hole is provided at one end of the axle 400 close to the wheel axle 200, and a transverse through hole is provided at one end of the wheel axle 200 close to the axle 400, and the axle 400 and the wheel axle 200 are connected by a pin passing through the two transverse through holes.

[0036] During installation, the axle 400 is sleeved on the outer layer of the wheel axle 200, so that the transverse through hole on the axle 400 and the transverse through hole on the wheel axle 200 are on the same transverse axis, and then the latch is inserted through the through hole on the axle 400 and the through hole on the wheel axle 200, so that the wheel 100 and the axle 400 are detachably connected together. In order to firmly connect the wheel 100 and the axle 400, a thread is provided on one end of the latch, and after the latch is inserted, the wheel 100 and the axle 400 can be fixed together with a washer and a nut.

[0037] like Figure 1 , Figure 2 As shown, as a further solution of the utility model: the wheel axle 200 is a D-type axle, and the axle 400 is a D-type tubular structure whose end surface matches the wheel axle 200.

[0038] During installation, the axle 400 is sleeved on the outer layer of the wheel axle 200. The D-shaped axle and the D-shaped hole are provided to facilitate the rapid positioning of the quick-release trolley power-assisted wheel set. At this time, the transverse through hole on the axle 400 and the transverse through hole on the wheel axle 200 are arranged in the direction of the midpoint of the straight line perpendicular to the D-shaped.

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, as a further solution of the utility model: the quick-detachable trolley power-assisted wheel set also includes a braking system 300, and the braking system 300 includes a braking gear 310, a braking seat 320, a braking rocker arm 330 and a braking pedal 340; the braking gear 310 is sleeved on one end of the wheel axle 200 close to the inner side of the wheel 100, and the braking gear 310 rotates with the wheel 100; the braking seat 320 is triangular, including a first angle 321, a second angle 322 and a third angle 324. Triangle 323, the first corner 321 is assembled with the axle 400 and the wheel axle 200, and the second corner 322 is fixedly connected to the frame; the brake rocker arm 330 is in a triangular shape, including a fourth corner 331, a fifth corner 332 and a sixth corner 333, the fourth corner 331 is rotatably connected to the third corner 323, the fifth corner 332 is fixedly connected to the brake pedal 340, and the sixth corner 333 is provided with a brake rod 334 in the same direction as the gear of the brake gear 310.

[0040] The brake gear 310 is directly or indirectly fixed with the rim 120, so when the rim 120 rotates, the brake gear 310 rotates with the rim 120. Similarly, when the brake lever 340 is stepped on, as the brake lever 334 rotates to the tooth groove 312 of the brake gear 310 to brake the brake gear 310, the rim 120 also stops together with the brake gear 310, thereby playing a braking role. Figure 5 The dotted line of the brake lever 340 is the position of the brake lever 340 before being stepped on, and the solid line of the brake lever 340 is the position of the brake lever 340 after being stepped on and engaging with the tooth groove 312 .

[0041] The brake seat 320 is provided with a first positioning hole 324 and a second positioning hole 325 near the third corner 323. The third corner 323 and the first positioning hole 324 and the second positioning hole 325 are in a triangular shape, and the first positioning hole 324 and the second positioning hole 325 are respectively at the same distance from the third corner 323, that is, the first positioning hole 324 and the second positioning hole 325 are located on the same virtual circumference with the triangle 323 as the center. The brake rocker arm 330 is provided with a positioning pin 335, and the distance from the fourth corner 331 to the positioning pin 335 is equal to the distance from the third corner 323 to the first positioning hole 324. The shaft diameter of the positioning pin 335 matches the aperture diameter of the first positioning hole 324 and the second positioning hole 325. When the brake rod 334 is away from the tooth groove 312 and is in a non-braking state, the positioning pin 335 is engaged with the first positioning hole 324. At the same time, the positioning pin 335 has a certain telescopic function, such as a spring is axially arranged on the positioning pin 335. This prevents the brake lever 334 from rotating to the tooth groove 312 due to the braking rocker arm 330 and the weight of the brake lever 340 when the brake lever 340 is not stepped on, so that the wheel 100 is braked. When the positioning pin 335 is engaged with the second positioning hole 325, the brake lever 334 is in the tooth groove 312 and is in a braking state. When the wheel 100 is not required to be in a braking state, the brake lever 340 can be gently hooked upward to disengage the brake lever 334 from the tooth groove 312.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, as a further solution of the utility model: a pedal plate 341 is provided at the longitudinal center position of the brake pedal rod 340.

[0043] The pedal plate 341 is provided to increase the contact area between the brake pedal rod 340 and the sole of the foot, thereby preventing the sole of the foot from slipping and facilitating control of the brake gear 310 .

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, as a further solution of the utility model:

[0045] A chamfer 311 is radially arranged between every two adjacent tooth grooves 312 of the brake gear 310. The chamfer 311 serves to enable the brake rod 334 to be positioned in the tooth groove 312 in one step.

[0046] like Figure 6 , Figure 7 As shown, as a further solution of the utility model: the wheel 100 includes a tire 110, a rim 120, a hub 140, a motor 150, an electric control board 160, a first bearing 121, a second bearing 126, a bracket 170, a driving wheel 123, a driven wheel 180, a belt 190 and a spoke 130;

[0047] The rim 120, the spokes 130 and the hub 140 form a receiving cavity, and the tire 110, the rim 120, the spokes 130 and the hub 140 are all sleeved on the axle 200;

[0048] The motor 150, the bracket 170, the driven wheel 180, and the first bearing 121 are all disposed in the accommodating cavity. The first bearing 121 is sleeved on the end of the wheel shaft 200 away from the axle 400. The driven wheel 180 is sleeved on the outer layer of the first bearing 121. The motor 150 is rotatably connected to the driving wheel 123. The belt 190 is transmission-connected to the driving wheel 123 and the driven wheel 180.

[0049] The bracket 170 is a plate-shaped rectangular structure sleeved on the wheel axle 200. The motor 150 and the driving wheel 123 are fixedly mounted on one end of the bracket 170, and the electric control board 160 is fixedly mounted on the other end of the bracket 170.

[0050] The wheel hub 140 is sleeved on the outer layer of the second bearing 126 , and the second bearing 126 is sleeved on one end of the wheel shaft 200 close to the axle 400 .

[0051] The wheel axle 200 is in a through hole state, and a conductive wire from the battery outside the wheel 100 to the electric control board 160 is installed in the through hole. By installing the wheel 100 of the above structure on an ordinary cart, the ordinary cart can be converted into an intelligent power-assisted vehicle. By controlling the motor 150 from outside the wheel 100, the driving wheel 123 is started, and then the driving wheel 123 drives the driven wheel 180 driven by the belt 190. The contact surfaces of the driven wheel 180 and the spokes 130 are provided with concave-convex matching structures without affecting the transmission of the belt 190. The rotation of the driven wheel 180 drives the spokes 130 to rotate, thereby realizing that the rotation of the driven wheel 180 drives the entire wheel 100 to rotate.

[0052] like Figure 6 , Figure 7 As shown, as a further solution of the present invention: a tensioning mechanism 124 including a tensioning wheel 1241 is provided between the driving wheel 123 and the driven wheel 180 .

[0053] The belt 190 drives the driving wheel 123, the tensioning wheel 1241 and the driven wheel 180, and the tensioning mechanism 124 is installed on the bracket 170, and the tensioning mechanism 124 is located between the driving wheel 123 and the driven wheel 180. The tensioning wheel 1241 mainly adjusts the tightness of the belt 190, reduces the vibration of the belt 190 during operation, and prevents the belt 190 from slipping to a certain extent, so as to ensure the normal and stable operation of the transmission system.

[0054] like Figure 6 , Figure 7 As shown, as a further solution of the present invention: the first bearing 121 and the second bearing 126 are fixed to the wheel 100 by means of an axle retaining spring 122 .

[0055] In order to ensure sealing, prevent wear and ensure compact and reasonable assembly, a shaft sleeve 125 and other gaskets are further provided between the bracket 170 and the second bearing 126 .

[0056] like Figure 6 As shown, as a further solution of the present utility model: the wheel 100 includes a spoke 130, and the spoke 130 is fixedly installed with the brake gear 310.

[0057] The brake gear 310 is directly fixedly connected to the rim 120. A preferred solution is that the brake gear 310 is fixedly installed together with the spoke 130, that is, the brake gear 310 is indirectly fixedly connected to the rim 120, so that braking the brake gear 310 can brake the wheel 100.

[0058] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A quick-detachable trolley power-assisted wheel set, comprising wheels, characterized in that: The quick-detachable trolley power-assisted wheel assembly also includes a wheel axle that rotates relative to the wheel, one end of the wheel axle is vertically installed at the center of the circular plane inside the wheel, and the other end of the wheel axle is detachably connected to one end of the axle on the same axis as the wheel axle.

2. The quick-release trolley power-assisted wheel assembly according to claim 1, characterized in that: The axle is tubular, and a transverse through hole is arranged at one end of the axle close to the wheel axle, and a transverse through hole is arranged at one end of the wheel axle close to the axle. The axle and the wheel axle are connected by a pin passing through the two transverse through holes.

3. The quick-detachable trolley power-assisted wheel assembly according to claim 2, characterized in that: The wheel axle is a D-shaped axle, and the vehicle axle is a D-shaped tubular structure whose end surface matches the wheel axle.

4. The quick-release trolley power-assisted wheel assembly according to claim 1, characterized in that: The quick-release trolley power-assisted wheel group also includes a braking system, which includes a braking gear, a brake seat, a braking rocker arm and a brake pedal; the braking gear is mounted on the end of the wheel axle close to the inner side of the wheel, and the braking gear rotates with the wheel; the brake seat is triangular, including a first angle, a second angle and a third angle, the first angle is mounted together with the axle and the wheel axle, and the second angle is fixedly connected to the frame; the braking rocker arm is triangular, including a fourth angle, a fifth angle and a sixth angle, the fourth angle is rotatably connected to the third angle, the fifth angle is fixedly connected to the brake pedal, and the sixth angle is provided with a brake rod in the same direction as the gear of the braking gear.

5. The quick-detachable trolley power-assisted wheel assembly according to claim 4, characterized in that: A pedal plate is arranged at the longitudinal center of the brake pedal rod.

6. The quick-detachable trolley power-assisted wheel assembly according to claim 5, characterized in that: Chamfers are radially arranged between every two adjacent tooth grooves of the brake gear.

7. The quick-release power-assisted wheel assembly for a trolley according to any one of claims 1 to 6, characterized in that: The wheel comprises a tire, a rim, a hub, a motor, an electric control board, a first bearing, a second bearing, a bracket, a driving wheel, a driven wheel, a belt and a spoke; The rim, the spokes and the hub form a receiving cavity, and the tire, rim, spokes and hub are all sleeved on the wheel axle; The motor, the bracket, the driven wheel, and the first bearing are all arranged in the accommodating cavity, the first bearing is sleeved on the end of the wheel shaft away from the axle, the driven wheel is sleeved on the outer layer of the first bearing, the motor is rotatably connected to the driving wheel, and the belt transmission connects the driving wheel and the driven wheel; The bracket is a plate-shaped rectangular structure sleeved on the wheel axle, one end of the bracket is fixedly mounted with the motor and the driving wheel, and the other end of the bracket is fixedly mounted with the electric control board; The wheel hub is sleeved on the outer layer of the second bearing, and the second bearing is sleeved on one end of the wheel shaft close to the axle.

8. The quick-detachable trolley power-assisted wheel assembly according to claim 7, characterized in that: A tensioning mechanism including a tensioning wheel is arranged between the driving wheel and the driven wheel.

9. The quick-detachable trolley power-assisted wheel assembly according to claim 7, characterized in that: The first bearing and the second bearing are fixed to the wheel by a shaft retaining spring.

10. The quick-detachable trolley power-assisted wheel assembly according to claim 6, characterized in that: The wheel comprises a spoke, and the spoke is fixedly mounted with the brake gear.

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