Modular portable lift and tow device

Abstract

This utility model relates to the field of lifting equipment technology, and in particular to a modular portable lifting traction device, comprising: a housing, a traction mechanism, and a drive motor. The housing contains an integrated control device. The traction mechanism has an anchoring connection and a movable traction part at each end, with a working part between the anchoring connection and the movable traction part. The drive motor is located within the working part, and a carbon brush holder and a carbon brush assembly are provided at one end of the drive motor. The device also includes: an interface part; and a side cover, which is located on the side of the housing and is detachably connected to the housing. When cleaning the carbon brush holder or replacing the carbon brush assembly, it is not necessary to disassemble the housing; only the side cover needs to be removed. This significantly shortens the maintenance process, saves operating time, improves equipment operating efficiency, and avoids the risk of damage to other components due to frequent disassembly of the entire housing.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a modular portable lifting traction device. Background Technology

[0002] In daily life, commonly used lifting and traction devices generally employ winches, which are small, lightweight lifting devices that use a drum to wind steel wire ropes or chains to lift or traction heavy objects. They are also known as winches. Primarily, an electric motor drives the drum to rotate, winding the steel wire rope or chain systematically onto the drum, thus achieving vertical lifting or horizontal traction of heavy objects. Currently, electric winches, mainly driven by electricity, have become the mainstream application equipment due to their advantages such as high efficiency, stability, and ease of operation. Electric winches can be used independently as lifting tools, widely applied in construction sites, warehousing and logistics, dock loading and unloading, etc., and can also serve as an important component of large equipment such as cranes, road construction machinery, and mine hoisting systems, playing a crucial traction and lifting function. Their compact structure, large rope capacity, smooth operation, and convenient movement and installation make them suitable for various complex working conditions, thus gaining popularity across various industries. Furthermore, modern winches are generally equipped with safety control systems such as limit switches, overload protection, and braking devices, further enhancing the reliability and operational safety of the equipment, making them indispensable in industrial automation and mechanized operations.

[0003] Most existing lifting and traction devices adopt an overall enclosed structure, with all operating components tightly sealed within the housing. When cleaning or replacing the carbon brush holder or carbon brush components is required for maintenance, the entire device must be completely disassembled, involving the disassembly of the motor and transmission system. This process is cumbersome and time-consuming, greatly increasing maintenance costs and downtime. Furthermore, when replacing or repairing the traction rope, the entire device also needs to be disassembled. Frequent large-scale disassembly and assembly can easily damage the housing connection points, affecting the overall lifespan of the device. Utility Model Content

[0004] This application provides a modular portable lifting and traction device, which adopts the following technical solution: A modular portable lifting and traction device includes: a housing, a traction mechanism, and a drive motor. The housing houses a control integration device. The traction mechanism includes an anchoring connection part and a movable traction part, with a working part located between the anchoring connection part and the movable traction part. The working part is located within the housing, and the drive motor is located within the working part. One end of the drive motor has a brush holder and a brush assembly. The device further includes: the housing is composed of two mutually matching and assembly housing components, which combine to form a complete housing; an interface part located on the side of the housing, connected to the control integration device via wiring; the interface part can be used to connect to a wireless receiver for wireless signal reception and control, and can also be used to connect to a wired control circuit, supporting traditional wired operation; and a side cover located on the side of the housing, corresponding to the brush holder and brush assembly. The side cover is detachably connected to the housing, allowing cleaning of the brush holder or replacement of the brush assembly without disassembling the housing, only requiring removal of the side cover.

[0005] Preferably, the side cover is provided with a clamping device, which is detachably connected to the side cover by a fixing member.

[0006] Preferably, the side cover has a snap-fit ​​groove, and a protrusion is fixedly connected to one side of the clamping device. The protrusion corresponds to the snap-fit ​​groove, and the snap-fit ​​groove and the protrusion are used to facilitate positioning when the clamping device is installed on the side cover.

[0007] Preferably, it further includes: an operating handle, which is used in conjunction with the overall device, and the operating handle is snapped into the clamping device when not in use.

[0008] Preferably, the bottom of the housing is provided with an inspection cover, which is detachably connected to the housing by a fastener.

[0009] Preferably, the working part includes a first limiting plate, a second limiting plate, a drum, a first reduction transmission unit, a second reduction transmission unit, a braking component, and a transmission shaft. The drive motor and the drum are respectively located between the first limiting plate and the second limiting plate. The drive motor is located near the anchoring connection part, and the drum is located near the movable traction part. The second reduction transmission unit is located outside the second limiting plate, and the first reduction transmission unit is located outside the first limiting plate. The braking component is located inside the drum, and the transmission shaft is located inside the drum. Both ends of the transmission shaft are connected to the braking component and the second reduction transmission unit, respectively.

[0010] Preferably, the first reduction transmission unit includes a first helical gear module, a second helical gear module, and a third helical gear module. The first helical gear module meshes with the output shaft of the drive motor, the second helical gear module meshes with the first helical gear module, the third helical gear module meshes with the second helical gear module, and the third helical gear module is connected to the braking component.

[0011] Preferably, a lower limit switch is provided on the inner side of the second limit plate, and a connecting shaft is provided below the lower limit switch. The two ends of the connecting shaft are respectively installed at the first limit plate and the second limit plate. The first limit plate and the second limit plate are respectively provided with movable grooves corresponding to the connecting shaft. When the drum releases the rope, the rope is released from below the connecting shaft. When the drum is in an empty winding state, the released rope will be taut. When the rope is taut, the connecting shaft will move upward. At this time, the connecting shaft touches and activates the lower limit switch. The lower limit switch sends a signal to the control integration device, which controls the drive motor to stop rotating in the wire release direction to prevent the device from being damaged due to empty winding.

[0012] Preferably, it further includes a rope pressing device, which is disposed above the drum.

[0013] Preferably, the housing is provided with an upper limit switch, which is located at one end of the housing and corresponds to the movable traction part. The movable traction part is provided with a limiting part. When the rope is retracted, when the limiting part near the end of the movable traction part touches the upper limit switch on the housing, the upper limit switch transmits a signal to the control integration device, causing the control integration device to control the drive motor to stop rotating in the retraction direction.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This portable lifting and traction device, through its housing and side cover, allows for cleaning of the motor brush holder or replacement of the brush assembly without disassembling the entire housing. Only the side cover needs to be removed to directly clean the brush holder or replace the brush assembly. An inspection cover is located at the bottom of the housing. When the traction rope on the movable traction unit or the traction rope on the drum needs replacement, or when internal components of the housing need maintenance, only the inspection cover needs to be removed. This significantly shortens the maintenance process, saves operating time, improves equipment operating efficiency, and avoids the risk of damage to other components due to frequent disassembly of the entire housing.

[0015] 2. This portable lifting and traction device uses upper and lower limit switches. When the traction rope on the drum is fully unwound and then unwound, the lower limit switch is triggered, causing the drive motor to stop rotating in the unwound direction. When the drum retracts the traction rope connected to the movable traction part, the upper limit switch is triggered at the end of the movable traction part, causing the drive motor to stop rotating in the retraction direction. This prevents excessive unwound and excessive retraction, avoids equipment damage, ensures safe use, and extends the service life of the equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the accompanying drawings are only some embodiments of this utility model. For those skilled in the art, other embodiments and their accompanying drawings can be obtained from the embodiments shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the interface section of this utility model.

[0019] Figure 3 This is a schematic diagram of the side cover of this utility model.

[0020] Figure 4 This is a schematic diagram of the clamping device of this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the protrusion of this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the inspection cover of this utility model.

[0023] Figure 7 This is an exploded view of this utility model.

[0024] Figure 8 This is a schematic diagram of the internal structure of the casing of this utility model.

[0025] Figure 9 This is a schematic diagram of the working part of this utility model.

[0026] Figure 10 This is a cross-sectional view of the working part of this utility model.

[0027] Figure 11 This is an exploded view of the working part of this utility model.

[0028] Figure 12 This is an exploded view of the second speed reduction transmission unit of this utility model.

[0029] In the diagram: 1. Housing; 101. Interface section; 102. Control integration device; 103. Upper limit switch; 104. Lighting lamp; 105. LCD screen; 106. Control switch; 107. Power switch; 108. Fuse; 109. Power plug; 110. Side cover; 1101. Clamping device; 1102. Protrusion; 1103. Snap-fit ​​groove; 2. Traction mechanism; 201. Anchoring connection section; 202. Movable traction section; 221. Limiting section; 203. First reduction transmission unit; 231. First helical gear module; 232. Second helical gear module; 233. Third helical gear module; 213. Second... 2131. Reduction transmission unit; 2132. Drive shaft; 2133. Internal gear ring; 2134. Gearbox; 2135. First-stage planetary gear module; 2136. Second-stage planetary gear module; 2137. Third-stage planetary gear module; 2138. Center gear; 204. Drive motor; 241. Carbon brush assembly; 242. Carbon brush holder; 205. Rope pressing device; 206. Connecting shaft; 261. Movable groove; 207. Lower limit switch; 208. Drum wheel; 209. Working part; 210. First limit plate; 211. Second limit plate; 212. Braking component; 3. Wireless receiver; 4. Operating handle; 5. Inspection cover. Detailed Implementation

[0030] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] An embodiment of this utility model provides a modular portable lifting and traction device.

[0034] Example: Figure 1-3 and Figure 7-8As shown, a modular portable lifting and traction device includes: a housing 1, a traction mechanism 2, and a drive motor 204. The housing 1 houses a control integration device 102. The traction mechanism 2 has an anchoring connection 201 and a movable traction part 202 at both ends, respectively. A working part 209 is located between the anchoring connection 201 and the movable traction part 202, within the housing 1. The drive motor 204 is located within the working part 209. A carbon brush holder 242 and a carbon brush assembly 241 are located at one end of the drive motor 204. The device also includes: the housing 1 is composed of two mutually matching and assembling housing components, which combine to form a complete housing 1. The housing 1 is equipped with a lighting lamp 104, an LCD screen 105, and a power switch 10. 7. Fuse 108, power plug 109, control switch 106; wireless receiver 3; interface 101, the interface 101 is located on the side of the housing 1, the interface 101 is connected to the control integration device 102 via a line, the interface 101 can be used to connect to the wireless receiver 3 to realize wireless signal reception and control, the interface 101 can also be used to connect to the wired control line to support the traditional wired control method; side cover 110, the side cover 110 is located on the side of the housing 1, the side cover 110 is located at the position corresponding to the carbon brush holder 242 and carbon brush assembly 241, the side cover 110 is detachably connected to the housing 1, when it is necessary to clean the carbon brush holder 242 or replace the carbon brush assembly 241, it is not necessary to disassemble the housing 1, but only to remove the side cover 110. The control integration device 102 is connected to the interface 101, power switch 107, LCD screen 105, control switch 106, power plug 109, fuse 108, and drive motor 204 via wiring. The power plug 109 is connected in series with the control integration device 102, fuse 108, and power switch 107 to provide circuit safety. The control switch 106 is connected to the control integration device 102 via wiring to enable manual control. The drive motor 204 is connected to the control integration device 102 via wiring. It can be manually controlled via the control switch 106, wirelessly controlled via the wireless receiver 3, or wirelessly controlled via the built-in wireless module of the control integration device 102, allowing the drive motor 204 to rotate in either forward or reverse direction.

[0035] like Figure 4-5As shown, the side cover 110 is provided with a clamping device 1101, which is detachably connected to the side cover 110. The side cover 110 has a snap-fit ​​groove 1103, and a protrusion 1102 is fixedly connected to one side of the clamping device 1101. The protrusion 1102 corresponds to the snap-fit ​​groove 1103, and the snap-fit ​​groove 1103 and the protrusion 1102 are used for convenient positioning when the clamping device 1101 is installed on the side cover 110. It also includes an operating handle 4, which is used in conjunction with the overall device and is snapped into the clamping device 1101 when not in use.

[0036] like Figure 6 As shown, a maintenance cover 5 is provided at the bottom of the housing 1, and the maintenance cover 5 is detachably connected to the housing 1 by a fastener.

[0037] like Figure 9-11 As shown, the working part 209 includes a first limiting plate 210, a second limiting plate 211, a drum 208, a first reduction transmission unit 203, a second reduction transmission unit 213, a braking component 212, and a transmission shaft 2131. The drive motor 204 and the drum 208 are respectively located between the first limiting plate 210 and the second limiting plate 211. The drive motor 204 is located near the anchoring connection part 201, and the drum 208 is located near the movable traction part 202. The second reduction transmission unit 213 is located outside the second limiting plate 211, and the first reduction transmission unit 203 is located outside the first limiting plate 210. The braking component 212 is located inside the drum 208, and the transmission shaft 2131 is located inside the drum 208. The two ends of the transmission shaft 2131 are respectively connected to the braking component 212 and the second reduction transmission unit 213.

[0038] like Figure 12 As shown, the second reduction transmission unit 213 includes a reduction gearbox 2133 fixed to the outside of the second limiting plate 211, a first-stage planetary gear module 2134, a second-stage planetary gear module 2135, and a third-stage planetary gear module 2136 arranged sequentially from the outside to the inside of the reduction gearbox 2133, and an internal gear ring 2132 arranged inside the reduction gearbox 2133. The transmission shaft 2131 is provided with a central gear 2137 at one end of the second reduction transmission unit 213. The central gear 2137 can mesh with the planetary gears on the first-stage planetary gear module 2134, thereby sequentially driving the first-stage planetary gear module 2134, the second-stage planetary gear module 2135, and the third-stage planetary gear module 2136 to rotate.

[0039] like Figure 11As shown, the first reduction transmission unit 203 includes a first helical gear module 231, a second helical gear module 232, and a third helical gear module 233. The first helical gear module 231 meshes with the output shaft of the drive motor 204, the second helical gear module 232 meshes with the first helical gear module 231, and the third helical gear module 233 meshes with the second helical gear module 232. The third helical gear module 233 is connected to the braking component 212.

[0040] like Figure 9-12 As shown, a lower limit switch 207 is provided on the inner side of the second limiting plate 211. A connecting shaft 206 is provided below the lower limit switch 207. The two ends of the connecting shaft 206 are respectively installed at the first limiting plate 210 and the second limiting plate 211. The first limiting plate 210 and the second limiting plate 211 are respectively provided with movable grooves 261 corresponding to the connecting shaft 206. When the drum 208 releases the rope, the rope is released from below the connecting shaft 206. When the drum 208 is in an empty winding state, the released rope will straighten. When the rope is straight, the connecting shaft 206 moves upward. At this time, the connecting shaft 206 touches and activates the lower limit switch 207. The lower limit switch 207 sends a signal to the control integration device 102. The control integration device 102 controls the drive motor 204 to stop rotating in the wire release direction to prevent the device from being damaged due to empty winding. It also includes a rope pressing device 205, which is set above the drum 208.

[0041] like Figure 7-8 As shown, the housing 1 is provided with an upper limit switch 103, which is located at one end of the housing 1. The upper limit switch 103 corresponds to the movable traction part 202. The movable traction part 202 is provided with a limiting part 221. When the rope is retracted, when the limiting part 221 near the end of the movable traction part 202 touches the upper limit switch 103 on the housing 1, the upper limit switch 103 transmits a signal to the control integration device 102, causing the control integration device 102 to control the drive motor 204 to stop rotating in the retraction direction.

[0042] This utility model discloses a modular portable lifting and traction device that can be operated manually, by wire, and wirelessly to meet the needs of different users. Manual control involves operating the traction rope of the lifting and traction device via the control switch 106 on the housing 1. Wired control involves connecting the wired control line to the interface 101 and then connecting the wired control line to the operating handle 4 to operate the traction rope of the lifting and traction device. Wireless control involves wireless connection via the wireless receiver inside the control integration device 102, operating the rope retraction and release function key on the wireless transmitter to control the retraction and release of the lifting and traction device. Alternatively, the wireless receiver 3 can be plugged into the interface 101 to connect the wireless transmitter and the wireless receiver 3, and the rope retraction and release function key on the wireless transmitter can be operated to control the retraction and release of the lifting and traction device. Simultaneously, an LCD screen 105 is used to intuitively display the battery level, rope retraction and release direction, and overcurrent and overheat protection.

[0043] When using this utility model: When it is necessary to clean the carbon brush structure inside the drive motor 204, remove the clamping device 1101 from the side cover 110 from the side of the housing 1, then rotate the fastener between the side cover 110 and the housing 1 to remove the side cover 110. After removal, the carbon brush holder 242 and carbon brush assembly 241 on the drive motor 204 are fully exposed, allowing the carbon brush holder 242 to be cleaned and the carbon brush assembly 241 to be replaced. After the replacement and cleaning are completed, the side cover 110 can be put back in its original position. When it is necessary to replace the traction rope on the drum 208 or inspect the internal structure, the fastener on the inspection cover 5 can be removed, and the inspection cover 5 can be moved out of the housing 1 to replace the traction rope on the drum 208 and inspect the components inside the housing 1.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and not restrictive in all respects. The scope of this invention is defined by the appended claims, not by the foregoing description, and is therefore intended to encompass all variations falling within the meaning and scope of equivalents of the claims. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A modular portable lifting and traction device, comprising: The device comprises a housing (1), a traction mechanism (2), and a drive motor (204). The housing (1) is equipped with a control integration device (102). The traction mechanism (2) includes an anchoring connection part (201) and a movable traction part (202). A working part (209) is provided between the anchoring connection part (201) and the movable traction part (202). The working part (209) is located inside the housing (1). The drive motor (204) is located inside the working part (209). A carbon brush holder (242) and a carbon brush assembly (241) are provided at one end of the drive motor (204). Its characteristic is that it also includes: The shell (1) is composed of two shell components that can be matched and assembled with each other, and the two shell components are combined to form a complete shell (1). An interface section (101) is provided on the side of the housing (1), and the interface section (101) is connected to the control integration device (102) via a line; Side cover (110) is provided on the side of housing (1). The side cover (110) is located at a position corresponding to the carbon brush holder (242) and carbon brush assembly (241). The side cover (110) is detachably connected to housing (1).

2. The modular portable lifting and traction device according to claim 1, characterized in that: The side cover (110) is provided with a clamping device (1101), which is detachably connected to the side cover (110).

3. A modular portable lifting and traction device according to claim 2, characterized in that: The side cover (110) has a snap-fit ​​groove (1103), and a protrusion (1102) is fixedly connected to one side of the clamping device (1101), the protrusion (1102) corresponding to the snap-fit ​​groove (1103).

4. A modular portable lifting and traction device according to claim 2, characterized in that: Also includes: Operating handle (4), which is snapped into clamping device (1101).

5. A modular portable lifting and traction device according to claim 1, characterized in that: The bottom of the housing (1) is provided with an inspection cover (5), which is detachably connected to the housing (1).

6. A modular portable lifting and traction device according to claim 1, characterized in that: The working part (209) includes a first limiting plate (210), a second limiting plate (211), a drum (208), a first reduction transmission unit (203), a second reduction transmission unit (213), a braking component (212), and a transmission shaft (2131). The drive motor (204) and the drum (208) are respectively located between the first limiting plate (210) and the second limiting plate (211). The drive motor (204) is located at one end near the anchoring connection part (201). The drum (208) 208) is located near the end of the movable traction part (202), the second deceleration transmission unit (213) is located outside the second limiting plate (211), the first deceleration transmission unit (203) is located outside the first limiting plate (210), the braking component (212) is located inside the drum (208), the transmission shaft (2131) is located inside the drum (208), and the two ends of the transmission shaft (2131) are respectively connected to the braking component (212) and the second deceleration transmission unit (213).

7. A modular portable lifting and traction device according to claim 6, characterized in that: The first reduction transmission unit (203) includes a first helical gear module (231), a second helical gear module (232), and a third helical gear module (233). The first helical gear module (231) meshes with the output shaft of the drive motor (204), the second helical gear module (232) meshes with the first helical gear module (231), the third helical gear module (233) meshes with the second helical gear module (232), and the third helical gear module (233) is connected to the braking component (212).

8. A modular portable lifting and traction device according to claim 6, characterized in that: The second limiting plate (211) is provided with a lower limit switch (207) on its inner side. A connecting shaft (206) is provided below the lower limit switch (207). The two ends of the connecting shaft (206) are respectively installed at the first limiting plate (210) and the second limiting plate (211). The first limiting plate (210) and the second limiting plate (211) are respectively provided with movable grooves (261) corresponding to the connecting shaft (206).

9. A modular portable lifting and traction device according to claim 6, characterized in that: Also includes: A rope pressing device (205) is disposed above the drum (208).

10. A modular portable lifting and traction device according to claim 1, characterized in that: The housing (1) is provided with an upper limit switch (103), which is located at one end of the housing (1). The upper limit switch (103) corresponds to the movable traction part (202), and the movable traction part (202) is provided with a limiting part (221).

Images