A rechargeable portable lifting device
By installing a rechargeable portable lifting device on the insulated bucket arm, the automatic lifting materials of the retractor and wire wheel driven by the motor are solved, and the problems of unstable human traction and high physical consumption are achieved, and stable and efficient material transportation is achieved. Suitable for lifting needs of insulated bucket arm trucks.
Patent Information
- Application Number
- CN202010929701.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-09-07
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2040-09-07
AI Technical Summary
The prior art when transporting materials in an insulated boom truck, human traction is unstable and physically consumes a lot of energy, which affects the normal progress of construction.
A rechargeable portable lifting device is designed, including a motor-driven retractor and a wire wheel, which is lifted by ropes, equipped with a battery and a controller, which can automatically lift and prevent collision or overturn caused by excessive retractor or excessive resistance.
It realizes automatic lifting of heavy objects on insulated bucket trucks, saving manpower, stable operation and easy removal after use, without affecting other functions of the whole vehicle.
Smart Images
Figure CN111960294B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a rechargeable portable lifting device. Background Art
[0002] The insulated boom truck is a special vehicle for equipotential operation in places with convenient transportation and complex wiring. During operation, the staff operates in the bucket after lifting. Due to the limited capacity of the boom truck bucket, it is impossible to carry all the materials at once, so the materials need to be transported in the middle. The solution of the existing technology is to tie the objects with ropes and then pull them by manpower. The problem with this method is that it consumes a lot of physical strength, and there are also unstable factors in human traction, which affects the normal progress of construction. Summary of the invention
[0003] The technical problem to be solved by the present invention is to provide a rechargeable portable lifting device, which can be hung on the bucket of an insulated boom truck to lift heavy objects, saving manpower, and has stable operation. It can be easily removed after use without affecting other functions of the entire vehicle.
[0004] In order to solve the above technical problems, the present invention provides a rechargeable portable lifting device, including a shell, a body is arranged in the shell, the body includes two side vertical plates arranged opposite to each other on the left and right, a rear vertical plate connected to the two side vertical plates is arranged on the rear sides of the two side vertical plates, the rear vertical plate is connected to the inner side of the shell, a take-up wheel is arranged between the two side vertical plates, the axis direction of the take-up wheel is left and right, a rope is wound around the take-up wheel, the side of the two side vertical plates that are close to each other in the left and right direction is inner, and the side that is away from each other in the left and right direction is outer, a motor is arranged on the outer side of one of the side vertical plates, and the motor Coaxially connected with the take-up wheel, a wire pulley extending forward and beyond the shell is provided on the front side of the machine body, the wire pulley is horizontally arranged and the axial direction is left and right, the movable end of the rope on the take-up wheel is placed on the wire pulley and droops naturally, a battery and a controller are provided under the rear vertical plate, the battery is electrically connected to the motor through the controller, an L-shaped hanging plate is provided on the rear side of the shell, the hanging plate includes a horizontal part and a vertical part, the rear side of the horizontal part is connected to the upper side of the vertical part, the front part of the horizontal part is connected to the upper and rear sides of the shell, and a gap is left between the vertical part and the rear side of the shell.
[0005] For the purpose of simple explanation, the rechargeable portable lifting device described in the present invention is referred to as the present device below.
[0006] The method of using the device is as follows: hang the L-shaped hanging plate on the outer side wall of the bucket of the insulated boom truck, then start the motor to drive the take-up wheel to rotate and lower the rope, the ground staff fix the object to be lifted on the rope, and then start the motor to lift the object.
[0007] Advantages of this device: This device can be hung on the bucket of an insulated boom truck to lift heavy objects, saving manpower, and has stable operation. It can be easily removed after use without affecting other functions of the vehicle.
[0008] In order to achieve better use effect of this device, the preferred scheme is as follows:
[0009] Preferably, both ends of the guide wheel are connected to the side vertical plate on the corresponding side through a supporting rod respectively, and a stop wheel matching the guide wheel and with an axial direction running left and right is provided above the front side of the guide wheel. A gap is left between the stop wheel and the guide wheel, and the size of the gap just matches the diameter of the rope. Both ends of the stop wheel are provided with a rocker arm extending backwards, the rear side of the rocker arm is hinged to the machine body, and the hinge axis runs left and right, an extension part is provided on the rear side of one of the rocker arms, and a limit switch matching the extension part is provided at the position of the machine body corresponding to the extension part, and the limit switch is connected to the controller.
[0010] When in use, a limit ball is set near the end of the rope away from the take-up wheel. When the cargo is lifted to the target position, the limit ball moves to the gap between the guide wheel and the stop wheel. The take-up wheel continues to rotate, and the limit ball pushes the stop wheel upward. At this time, the limit switch on the rear side of the rocker arm is triggered, and the limit switch transmits a signal to the controller. The controller controls the motor to stop running, thereby preventing the lifted cargo from colliding with the device due to excessive take-up.
[0011] Preferably, a damping clutch is provided between the motor and the take-up wheel.
[0012] During the process of reeling in, if the cargo is caught on an obstacle, the rope is entangled, the lifting weight is too heavy, or other resistance occurs that causes the maximum lifting weight of the device to be exceeded, the damping clutch will disconnect the reel from the motor output shaft to prevent the motor from burning out or the reverse pulling force of the rope from causing the insulated boom truck to tip over.
[0013] Preferably, a wire clamping wheel matching the wire take-up wheel is provided on the upper front side of the wire take-up wheel, the wire clamping wheel is arranged horizontally and extends left and right, the wire clamping wheel is connected to the machine body through a connecting rod, and the wire clamping wheel is in radial contact with the wire take-up wheel.
[0014] During the process of releasing the line with the device, at the initial stage, the rope is in a taut state under the pulling force of the hook's gravity. When the hook falls to the ground, the hook's gravity no longer provides pulling force. At this time, the rope wound on the take-up wheel will be in a fluffy state, and the rope on the outer layer may slip off the take-up wheel. The wire clamping wheel can play a limiting role to prevent the rope from slipping off the take-up wheel.
[0015] Preferably, the horizontal portion of the hanging plate is provided with at least two elongated through holes extending forward and backward, and threaded holes matching the elongated through holes are provided at positions on the outer shell corresponding to the elongated through holes, and bolts matching the bolt holes pass through the elongated through holes and are screwed together with the threaded holes.
[0016] The distance between the hanging plate and the shell can be adjusted by the cooperation of the long strip through hole and the bolt, so that the device can be compatible with insulating bucket arm trucks of various sizes and specifications.
[0017] Preferably, an inspection door is provided on the front side of the housing, and a window for the guide wheel to pass through is provided at the position of the inspection door corresponding to the guide wheel.
[0018] The inspection door allows for easy inspection when the device fails, without having to remove the entire housing. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural diagram of the device.
[0020] Figure 2 It is a schematic diagram of the structure of the device body.
[0021] Figure 3 This is an exploded view of the device. DETAILED DESCRIPTION
[0022] See also Figure 1-3 A rechargeable portable lifting device comprises a shell 1, a body is arranged in the shell 1, the body comprises two side upright plates 2 arranged opposite to each other on the left and right sides, a rear upright plate 21 connecting the two side upright plates 2 is arranged on the rear sides of the two side upright plates 2, the rear upright plate 21 is connected to the inner side of the shell 1, a take-up wheel 3 is arranged between the two side upright plates 2, the axis direction of the take-up wheel 3 is left and right, a rope is wound around the take-up wheel 3 (the rope is not shown in the figure), the side of the two side upright plates 2 that is close to each other in the left and right directions is the inner side, and the side that is away from each other is the outer side, a motor 4 is arranged on the outer side of one of the side upright plates 2, and the motor 4 is coaxially connected to the take-up wheel 3 A wire pulley 5 extending forward and beyond the shell 1 is provided on the front side of the machine body, the wire pulley 5 is arranged horizontally and the axial direction is left and right, the movable end of the rope on the take-up wheel 3 is placed on the wire pulley 5 and droops naturally, a battery 6 and a controller are provided below the rear vertical plate 21, the battery 6 is electrically connected to the motor 4 through the controller, an L-shaped hanging plate 7 is provided on the rear side of the shell 1, the hanging plate 7 includes a horizontal portion 71 and a vertical portion 72, the rear side of the horizontal portion 71 is connected to the upper side of the vertical portion 72, the front part of the horizontal portion 71 is connected to the upper and rear sides of the shell 1, and a gap is left between the vertical portion 72 and the rear side of the shell 1.
[0023] The two ends of the wire wheel 5 are connected to the side vertical plate 2 on the corresponding side through a supporting rod 51 respectively. A stop wheel 8 matching the wire wheel 5 and with an axial direction running left and right is provided above the front side of the wire wheel 5. A gap is left between the stop wheel 8 and the wire wheel 5, and the size of the gap just matches the rope diameter. A rocker arm 81 extending backward is provided at each end of the stop wheel 8. The rear side of the rocker arm 81 is hinged to the machine body, and the hinge axis runs left and right. An extension portion is provided on the rear side of one of the rocker arms 81, and a limit switch 82 matching the extension portion is provided at the position on the machine body corresponding to the extension portion. The limit switch 82 is connected to the controller.
[0024] A damping clutch 41 is provided between the motor 4 and the take-up wheel 3 , and a bearing 31 is provided at the connection between the take-up wheel 3 and the side plate 2 .
[0025] The upper part of the front side of the take-up wheel 3 is provided with a wire clamping wheel 9 matching the take-up wheel 3 . The wire clamping wheel 9 is arranged horizontally and extends left and right. The wire clamping wheel 9 is connected to the machine body through a connecting rod 91 . The wire clamping wheel 9 is in radial contact with the take-up wheel 3 .
[0026] The horizontal portion 71 of the hanging plate 7 is provided with at least two long strip through holes 711 extending forward and backward. The positions of the outer shell 1 corresponding to the long strip through holes 711 are provided with threaded holes 11 matching the long strip through holes 711. Bolts 712 matching the bolt holes 712 pass through the long strip through holes 711 and are screwed together with the threaded holes 11.
[0027] An inspection door 12 is provided on the front side of the housing 1 , and a window 121 for the guide wheel 5 to pass through is provided at the position of the inspection door 12 corresponding to the guide wheel 5 .
[0028] The method of using the device is as follows: hang the L-shaped hanging plate 7 on the outer side wall of the bucket of the insulated boom truck, then start the motor 4 to drive the take-up wheel 3 to rotate and lower the rope, the ground staff fixes the object to be lifted on the rope, and then starts the motor to lift the object.
[0029] Advantages of this device: This device can be hung on the bucket of an insulated boom truck to lift heavy objects, saving manpower, and has stable operation. It can be easily removed after use without affecting other functions of the vehicle.
[0030] When in use, a limit ball is set near the end of the rope away from the take-up wheel 3. When the goods are lifted to the target position, the limit ball moves to the gap between the wire wheel 5 and the stop wheel 8. The take-up wheel 3 continues to rotate, and the limit ball pushes the stop wheel 8 upward. At this time, the rear side of the rocker arm 81 triggers the limit switch 82, and the limit switch 82 transmits a signal to the controller. The controller controls the motor 4 to stop running, thereby preventing the lifted goods from colliding with the device due to excessive take-up.
[0031] During the process of winding the wire, if the cargo is caught on an obstacle, the rope is entangled, the lifting weight is too heavy, or other resistance occurs that causes the maximum lifting weight of the device to be exceeded, the damping clutch 41 will disconnect the winding wheel 3 from the output shaft of the motor 4 to prevent the motor 4 from burning out or the reverse pulling force of the rope from causing the insulated boom truck to tip over.
[0032] During the process of releasing the line by the device, at the initial stage, the rope is in a taut state under the pulling force of the hook's gravity. When the hook falls to the ground, the hook's gravity no longer provides pulling force. At this time, the rope wound on the take-up wheel 3 will be in a fluffy state, and the rope on the outer layer may slip off the take-up wheel 3. The wire clamping wheel 9 can play a limiting role to prevent the rope from slipping off the take-up wheel 3.
[0033] The distance between the hanging plate 7 and the housing 1 can be adjusted by the cooperation of the long strip through hole 711 and the bolt 712, so that the device can be compatible with insulating boom trucks of various sizes.
[0034] The inspection door 12 can facilitate inspection when the device fails, without removing the entire housing 1.
Claims
1. A rechargeable portable lifting device, characterized in that: The cam is provided with a plurality of side plates, each of which is connected to the two side plates by a plurality of rear plates, and a plurality of rear plates are connected to the two side plates by a plurality of rear plates. The two ends of the wire wheel are connected to the side vertical plate of the corresponding side through a support rod respectively. A stop wheel matching the wire wheel and with an axial direction running left and right is provided above the front side of the wire wheel. A gap is left between the stop wheel and the wire wheel, and the size of the gap just matches the diameter of the rope. A limit ball is provided at the end of the rope away from the take-up wheel. A rocker arm extending backward is provided at each end of the stop wheel. The rear side of the rocker arm is hinged to the machine body, and the hinge axis runs left and right. An extension part is provided at the rear side of one of the rockers. A limit switch matching the extension part is provided at the position of the machine body corresponding to the extension part, and the limit switch is connected to the controller. The upper part of the front side of the take-up wheel is provided with a wire clamping wheel matching the take-up wheel. The wire clamping wheel is arranged horizontally and runs left and right. The wire clamping wheel is connected to the machine body through a connecting rod. The wire clamping wheel is in radial contact with the take-up wheel.
2. A rechargeable portable lifting device according to claim 1, characterized in that: A damping clutch is arranged between the motor and the take-up wheel.
3. A rechargeable portable lifting device according to claim 1, characterized in that: The horizontal portion of the hanging plate is provided with at least two long strip through holes extending forward and backward, and threaded holes matching the long strip through holes are provided at positions corresponding to the long strip through holes on the outer shell, and bolts matching the bolt holes pass through the long strip through holes and are screwed to the threaded holes.
4. A rechargeable portable lifting device according to claim 1, characterized in that: An inspection door is provided on the front side of the shell, and a window for the guide wheel to pass through is provided at the position of the inspection door corresponding to the guide wheel.