Cable winding and unwinding device
By designing switchable pawl states and locking components in the cable winding and unwinding device, the problem of pawls easily re-engaging due to vibration is solved, thus achieving stability and reliability in cable winding and unwinding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY DESIGN GRP CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-17
AI Technical Summary
Existing cable rewinding devices are prone to re-engaging due to external factors such as vibration when the pawl and ratchet are engaged, resulting in unstable cable rewinding.
A cable retraction device is designed, comprising a frame, a rotating component, and a locking component. By switching between the working state and the locking state of the pawl, the elastic element provides elastic force to keep the pawl engaged with the ratchet, and the locking component locks the pawl in the locked state to ensure that the pawl stably avoids the ratchet.
The cable reel-in and reel-out device achieves stable cable reel-in and reel-out in a stable pawl switching state, avoiding cable slippage and ensuring stable cable reel-in and reel-out.
Smart Images
Figure CN224132470U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of power cable winding and unwinding devices, and in particular to a cable winding and unwinding device. Background Technology
[0002] Cable reel-in and reel-out devices are widely used in the power industry because they enable rapid and accurate cable reel-in and reel-out, ensuring cable quality and improving power system stability. In related technologies, cable reel-in and reel-out devices generally have two modes: one mode only reels the cable, and the other mode can both reel in and release the cable. Switching between the two modes is achieved by changing the relationship between the pawl and the ratchet. However, when the pawl avoids the ratchet, it is often prone to re-engaging with the ratchet due to external factors such as vibration. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a cable retraction device that enables the pawl to be stably locked.
[0004] A cable winding and unwinding device according to an embodiment of the present invention includes a frame, a rotating assembly, and a locking assembly. The rotating assembly includes a spindle structure, a ratchet, a pawl, and an elastic element. The spindle structure is rotatably mounted on the frame and connected to the ratchet. The spindle structure is used to wind the cable. The pawl is rotatably mounted on the frame and can rotate between a working state and a locked state. When the pawl is in the working state, it engages with the ratchet. When the pawl is in the locked state, it avoids the ratchet. The elastic element connects the frame and the pawl and provides elastic force to keep the pawl in the working state. The locking assembly is mounted on the frame and is located on one side of the pawl, and is used to lock the pawl in the locked state.
[0005] A cable winding and unwinding device according to an embodiment of the present utility model has at least the following technical effects:
[0006] In the use of the cable reel-and-drive device of this application, the pawl is rotatable, allowing it to switch between a working state and a locked state. When the pawl is in the working state, the elastic element, with its two ends connected to the frame and the pawl respectively, provides the pawl with the elastic force to maintain engagement with the ratchet, ensuring the pawl remains in the working state. At this time, because the spindle structure is connected to the ratchet, the spindle structure can only rotate in one direction to reel in the cable. When the pawl is in the locked state, the pawl avoids the ratchet, and the locking assembly locks the pawl in the locked state. The spindle structure can both wind and release the cable. Because the cable reel-and-drive device of this application includes a locking assembly, when the pawl is in the locked state, the locking assembly can lock and fix the pawl, ensuring it remains stably locked. This allows the cable reel-and-drive device to stably operate in a state where it can both reel in and release the cable.
[0007] According to some embodiments of the present invention, a cable reeling device includes a locking component comprising a locking block, a first abutting structure, and a pawl comprising a second abutting structure. The locking block is movably disposed, and under the action of an external force, the locking block can drive the pawl to switch from the working state to the locking state, and can abut the second abutting structure through the first abutting structure to lock the pawl in the locking state.
[0008] According to some embodiments of the present invention, a cable winding device includes a locking block rotatably mounted on a frame. Under external force, the locking block can rotate forward to push the pawl from the working state to the locking state. The first abutting structure includes a first abutting surface, and the second abutting structure includes a second abutting surface. When the pawl is locked in the locking state, the second abutting surface and the first abutting surface abut against each other radially on the rotation axis of the locking block.
[0009] According to some embodiments of the present invention, a cable reeling device includes a first abutting structure further comprising a third abutting surface and a second abutting structure further comprising a fourth abutting surface. When the pawl is locked in the locked state, the third abutting surface and the fourth abutting surface abut against each other in the circumferential direction of the rotation axis of the locking block, thereby preventing the locking block from continuing to rotate in the forward direction.
[0010] According to some embodiments of the present invention, a cable winding device further includes a conductive structure disposed on a frame and used for electrical connection with one end of the cable wound around the mandrel structure.
[0011] According to some embodiments of the present invention, a cable winding device includes a conductive structure comprising a first conductive element and a second conductive element, which are rotatably disposed relative to each other and electrically connected. The first conductive element is used to electrically connect with one end of the cable wound around the mandrel structure, and the second conductive element is fixedly disposed relative to the frame and is used to electrically connect with an external power source.
[0012] According to some embodiments of the present invention, a cable retracting device includes a conductive structure further comprising a first plug and a second plug. The first plug is electrically connected to a first conductive element and is used for plugging and unplugging a cable and being electrically connected. The second plug is electrically connected to a second conductive element and is used for plugging and unplugging an external power source and being electrically connected.
[0013] According to some embodiments of the present invention, a cable winding device includes a spindle structure comprising a connector and multiple spindles, wherein the multiple spindles are all disposed on the connector and are circumferentially spaced around the conductive structure, and the connector is connected to a ratchet.
[0014] According to some embodiments of the present invention, a cable winding and unwinding device includes a frame comprising two mounting plates and at least one set of limiting rods. The limiting rods are disposed on one side of the spindle structure. Each limiting rod set includes two limiting rods arranged side by side and spaced apart. The opposite ends of the limiting rods are respectively connected to the two mounting plates. A limiting area is formed between the two limiting rods of the same limiting rod set to allow the cable to pass through.
[0015] According to some embodiments of the present invention, a cable winding and unwinding device is provided on a limiting rod, and the two limiting blocks are arranged at intervals along the axial direction of the limiting rod, and are used to limit the cable in the limiting area in the axial direction of the limiting rod.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0018] Figure 1 This is a three-dimensional structural diagram of a cable winding and unwinding device according to one embodiment of the present utility model;
[0019] Figure 2 for Figure 1 A partial structural diagram of the cable retraction device in the diagram;
[0020] Figure 3 for Figure 1 A schematic diagram of the connection structure between the transmission component and the locking component in the diagram;
[0021] Figure 4 for Figure 3 A magnified view of region A shown in the image;
[0022] Figure 5 for Figure 1 A schematic diagram of the exploded structure of the conductive structure.
[0023] Figure label:
[0024] Frame 100, mounting plate 110, limit rod 120, limit area 120a, limit block 121;
[0025] Rotating assembly 200, spindle structure 210, connector 211, spindle 212, ratchet 220, pawl 230, second abutment structure 231, second abutment surface 231a, fourth abutment surface 231b, elastic element 240, handle 250;
[0026] Locking assembly 300, locking block 310, first abutting structure 311, first abutting surface 311a, third abutting surface 311b, knob 320;
[0027] Conductive structure 400, first conductive element 410, second conductive element 420, first plug 430, second plug 440, housing 450. Detailed Implementation
[0028] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0029] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. They are 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.
[0030] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.
[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0032] The following is for reference. Figures 1 to 5 A cable winding and unwinding device according to an embodiment of the present invention will be described in detail.
[0033] refer to Figures 1 to 3A cable winding and unwinding device according to an embodiment of the present invention includes a frame 100, a rotating assembly 200, and a locking assembly 300. The rotating assembly 200 includes a spindle structure 210, a ratchet 220, a pawl 230, and an elastic element 240. The spindle structure 210 is rotatably mounted on the frame 100 and connected to the ratchet 220. The spindle structure 210 is used for winding cables. The pawl 230 is rotatably mounted on the frame 100 and can rotate between a working state and a locking state. The mechanism includes a switching mechanism; when the pawl 230 is in the working state, the pawl 230 engages with the ratchet 220; when the pawl 230 is in the locked state, the pawl 230 avoids the ratchet 220; the elastic element 240 connects the frame 100 and the pawl 230, and provides elastic force to keep the pawl 230 in the working state; the locking assembly 300 is disposed on the frame 100, on one side of the pawl 230, and is used to lock the pawl 230 in the locked state.
[0034] During the use of the cable reeling device of this application, since the pawl 230 is rotatable, the pawl 230 can switch between a working state and a locked state. When the pawl 230 is in the working state, since the two ends of the elastic element 240 are respectively connected to the frame 100 and the pawl 230, the elastic element 240 provides the pawl 230 with the elastic force to keep it engaged with the ratchet 220, so that the pawl 230 can be continuously in the working state. At this time, since the spindle structure 210 is connected to the ratchet 220, the spindle structure 210 can only rotate in one direction to reel in the cable. When the pawl 230 is in the locked state, the pawl 230 avoids the ratchet 220, and the locking assembly 300 locks the pawl 230 in the locked state. The spindle structure 210 can both wind and release the cable. Because the cable reeling device of this application is equipped with a locking component 300, when the pawl 230 is in the locked state, the locking component 300 can lock and fix the pawl 230, so that the pawl 230 is stably in the locked state, thereby enabling the cable reeling device to stably be in a state that can both reel in and release the cable.
[0035] Understandably, when the pawl 230 is in the working state, the pawl 230 engages with the ratchet 220, and the spindle structure 210 rotates in one direction. At this time, the cable take-up and take-down device can only take up the cable, effectively preventing the cable from slipping when taking up the cable.
[0036] refer to Figure 3 and Figure 4In some embodiments of this utility model, the locking assembly 300 includes a locking block 310, which is provided with a first abutting structure 311, and the pawl 230 is provided with a second abutting structure 231. The locking block 310 is movably configured. Under the action of external force, the locking block 310 can drive the pawl 230 to switch from the working state to the locking state, and can abut against the second abutting structure 231 through the first abutting structure 311 to lock the pawl 230 in the locking state. It can be understood that under the action of external force, the locking block 310 can drive the pawl 230 to rotate, so that the pawl 230 is in the locking state of avoiding the ratchet 220. At this time, the first abutting structure 311 abuts against the second abutting structure 231, so that the pawl 230 can remain in the locking state, thereby enabling the cable reel-in / deel-out device to stably release the cable.
[0037] In some of these embodiments, such as Figure 3 and Figure 4 As shown, the locking block 310 is rotatably mounted on the frame 100. Under the action of external force, the locking block 310 can rotate in the forward direction to push the pawl 230 from the working state to the locking state. The first abutting structure 311 includes a first abutting surface 311a, and the second abutting structure 231 includes a second abutting surface 231a. When the pawl 230 is locked in the locking state, the second abutting surface 231a and the first abutting surface 311a abut against each other in the radial direction of the rotation axis of the locking block 310.
[0038] It is understandable that by rotating the locking block 310 in the forward direction, the pawl 230 is driven to rotate and avoid the ratchet 220 until the second abutment surface 231a and the first abutment surface 311a abut against each other radially on the rotation axis of the locking block 310. At this time, under the elastic force of the elastic element 240, the pawl 230 has a tendency to rotate around its own rotation axis. Since the second abutment surface 231a and the first abutment surface 311a abut against each other radially on the rotation axis of the locking block 310, the direction of the force applied by the pawl 230 to the locking block 310 passes through the rotation axis of the locking block 310, so that the pawl 230 cannot push the locking block 310 to rotate. Correspondingly, the locking block 310 will hinder the pawl 230 from rotating around its own rotation axis, so that the pawl 230 can be stably locked under the elastic force of the elastic element 240.
[0039] refer to Figure 3 and Figure 4In one embodiment, the first abutting structure 311 further includes a third abutting surface 311b, and the second abutting structure 231 further includes a fourth abutting surface 231b. When the pawl 230 is locked in the locked state, the third abutting surface 311b and the fourth abutting surface 231b abut against each other in the circumferential direction of the rotation axis of the locking block 310, so as to prevent the locking block 310 from continuing to rotate in the forward direction. It is understandable that by rotating the locking block 310 in the forward direction, the second abutting surface 231a and the first abutting surface 311a abut against each other in the radial direction of the rotation axis of the locking block 310. At this time, since the third abutting surface 311b and the fourth abutting surface 231b abut against each other in the circumferential direction of the rotation axis of the locking block 310, the locking block 310 cannot continue to rotate in the forward direction around its own rotation axis. This allows the second abutting surface 231a and the first abutting surface 311a to continue to abut against each other in the radial direction of the rotation axis of the locking block 310, thereby keeping the pawl 230 in the locked state.
[0040] In a further embodiment of this utility model, the third abutment surface 311b and the fourth abutment surface 231b abut against each other radially along the rotation axis of the ratchet 220. It can be understood that by rotating the locking block 310 in the forward direction, causing the third abutment surface 311b and the fourth abutment surface 231b to abut against each other radially along the rotation axis of the ratchet 220, the force applied by the locking block 310 to the pawl 230 passes through the rotation axis of the pawl 230, preventing the locking block 310 from pushing the pawl 230 to rotate, thereby ensuring that the pawl 230 can be stably locked.
[0041] In some other embodiments of this utility model, the locking assembly 300 includes a pin. When the pawl 230 rotates to the locked state under the action of external force, the pin connects the pawl 230 to the frame 100 so that the pawl 230 is kept in the locked state.
[0042] refer to Figure 1 and Figure 2 In some embodiments of this utility model, a conductive structure 400 is also included. The conductive structure 400 is disposed on the frame 100 and is used to electrically connect with one end of the cable wound around the mandrel structure 210. It can be understood that by electrically connecting one end of the cable wound around the mandrel structure 210 to the conductive structure 400, the cable can always be energized during the winding and unwinding process.
[0043] In some of these embodiments, such as Figure 2 and Figure 5As shown, the conductive structure 400 includes a first conductive element 410 and a second conductive element 420. The first conductive element 410 and the second conductive element 420 are rotatably disposed relative to each other and are electrically connected. The first conductive element 410 is used to electrically connect to one end of the cable wound around the mandrel structure 210, and the second conductive element 420 is fixedly disposed relative to the frame 100 and is used to electrically connect to an external power source. It can be understood that by electrically connecting one end of the cable wound around the mandrel structure 210 to the first conductive element 410 and the second conductive element 420 to the external power source, and because the first conductive element 410 and the second conductive element 420 are rotatably disposed relative to each other and the second conductive element 420 is fixedly disposed relative to the frame 100, when the mandrel structure 210 rotates, the cable wound around the mandrel structure 210 rotates accordingly. At this time, the first conductive element 410 connected to the cable can rotate with the cable, thereby reducing the possibility of damage to one end of the cable wound around the mandrel structure 210 when the mandrel structure 210 rotates.
[0044] Specifically, the first conductive element 410 is the brush of the conductive slip ring, and the second conductive element 420 is the conductive ring of the conductive slip ring.
[0045] refer to Figure 2 and Figure 5 In one embodiment, the conductive structure 400 further includes a first plug 430 and a second plug 440. The first plug 430 is electrically connected to the first conductive element 410 and is used for plugging and connecting to a cable. The second plug 440 is electrically connected to the second conductive element 420 and is used for plugging and connecting to an external power source. It is understood that by winding the cable around one end of the spindle structure 210 and connecting it to the first plug 430, and by connecting the external power source to the second plug 440, the operational difficulty for workers can be reduced, and the cable can be quickly and accurately powered to the external power source.
[0046] In a further embodiment of this utility model, the conductive structure 400 further includes a housing 450, which is rotatably mounted on the frame 100 and connected to the spindle structure 210. A first conductive element 410 and a second conductive element 420 are disposed within the housing 450. A first plug 430 is connected to the housing 450, and the first conductive element 410 is fixedly connected to the first plug 430. Both the second conductive element 420 and the second plug 440 are connected to the frame 100. It is understood that when the spindle structure 210 rotates, the housing 450 rotates accordingly, and the housing 450 drives the first plug 430 to rotate, keeping the first plug 430 relatively stationary with respect to the spindle structure 210. This keeps the cable wound around the spindle structure 210 and the end of the cable plugged into the first plug 430 relatively stationary, further improving the cable's service life.
[0047] In some embodiments of this utility model, the mandrel structure 210 includes a connector 211 and a plurality of mandrels 212. The plurality of mandrels 212 are all disposed on the connector 211 and are circumferentially spaced around the conductive structure 400. The connector 211 is connected to the ratchet 220. For example, as... Figure 2 and Figure 3 As shown, the spindle structure 210 includes a connector 211 and three spindles 212. The opposite ends of each spindle 212 are connected to the connector 211 and the housing 450, respectively. The three spindles 212 are circumferentially spaced around the conductive structure 400. The connector 211 is connected to a ratchet 220. It can be understood that by setting multiple spindles 212 circumferentially spaced around the conductive structure 400, one end of the cable wound on the spindle structure 210 can pass between two of the spindles 212 and be electrically connected to the conductive structure 400. This ensures that the rotation of the spindle structure 210 does not affect the connection between the cable and the conductive structure 400, and also simplifies the structure of the cable winding device.
[0048] In some embodiments, the frame 100 includes two mounting plates 110 and at least one set of limiting rods. The limiting rod sets are disposed on one side of the spindle structure 210. Each limiting rod set includes two parallel and spaced-apart limiting rods 120. The opposite ends of the limiting rods 120 are respectively connected to the two mounting plates 110. A limiting area 120a, allowing cables to pass through, is formed between the two limiting rods 120 in the same limiting rod set. For example, as... Figure 1 and Figure 2 As shown, the frame 100 includes two mounting plates 110 and four sets of limiting rods. The two mounting plates 110 are arranged opposite each other and are square in structure. The four sets of limiting rods are distributed at the four corners of the mounting plates 110 and are circumferentially distributed around the spindle structure 210. Each set of limiting rods includes two parallel and spaced limiting rods 120. The opposite ends of the limiting rods 120 are connected to the two mounting plates 110 respectively. A limiting area 120a that allows cables to pass through is formed between the two limiting rods 120 in the same set of limiting rods.
[0049] It is understandable that by setting limit rods, the movement of the cable in the cable reeling device is restricted, so that the cable is less likely to interfere with other structures during the reeling process, thus affecting the cable reeling.
[0050] refer to Figure 2 In some embodiments of this utility model, two limiting blocks 121 are provided on the limiting rod 120. The two limiting blocks 121 are spaced apart along the axial direction of the limiting rod 120 and are used to limit the cable in the limiting area 120a in the axial direction of the limiting rod 120. It can be understood that by providing two limiting blocks 121 on the limiting rod 120, the movement of the cable during the winding and unwinding process is reduced, thereby reducing the possibility of cable wear.
[0051] refer to Figure 1 and Figure 2 In some embodiments of this utility model, the locking assembly 300 further includes a knob 320, which is rotatably mounted on the mounting plate 110 and connected to the locking block 310. Under external force, the knob 320 can drive the locking block 310 to rotate. It is understood that by rotating the knob 320, the operator can cause the locking block 310 to rotate forward, thus rotating the pawl 230 to the locked state; by rotating the knob 320, the operator can cause the locking block 310 to rotate in the opposite direction, at which point the locking block 310 disengages from the pawl 230, and the pawl 230 rotates to the working state under the action of the elastic element 240. The knob 320 reduces the difficulty of manual operation.
[0052] In some of these embodiments, such as Figure 1 and Figure 2 As shown, the rotating assembly 200 also includes a handle 250, which is connected to the connector 211. Under the action of external force, the handle 250 can drive the spindle structure 210 to rotate. It can be understood that by rotating the handle 250 to drive the spindle structure 210 to rotate, the cable can be retrieved or released, making the operation relatively convenient.
[0053] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A cable take-up device, characterized in that include: Frame; A rotating assembly includes a spindle structure, a ratchet, a pawl, and an elastic element. The spindle structure is rotatably mounted on the frame and connected to the ratchet. The spindle structure is used for winding cables. The pawl is rotatably mounted on the frame and can switch between a working state and a locked state. When the pawl is in the working state, it engages with the ratchet; when the pawl is in the locked state, it avoids the ratchet. The elastic element connects the frame and the pawl and provides a spring force to keep the pawl in the working state. A locking assembly is provided on the frame, the locking assembly is located on one side of the pawl, and is used to lock the pawl in the locked state.
2. A cable deployment device according to claim 1, wherein, The locking assembly includes a locking block, the locking block having a first abutting structure, and the pawl having a second abutting structure. The locking block is movably configured so that, under the action of an external force, the locking block can drive the pawl to switch from the working state to the locking state, and can abut against the first abutting structure and the second abutting structure to lock the pawl in the locking state.
3. A cable deployment device according to claim 2, wherein, The locking block is rotatably mounted on the frame. Under the action of external force, the locking block can rotate in the forward direction to push the pawl from the working state to the locking state. The first abutting structure includes a first abutting surface, and the second abutting structure includes a second abutting surface. When the pawl is locked in the locking state, the second abutting surface and the first abutting surface abut against each other in the radial direction of the rotation axis of the locking block.
4. A cable deployment device according to claim 3, wherein, The first abutting structure further includes a third abutting surface, and the second abutting structure further includes a fourth abutting surface. When the pawl is locked in the locked state, the third abutting surface and the fourth abutting surface abut against each other in the circumferential direction of the rotation axis of the locking block to prevent the locking block from continuing to rotate in the forward direction.
5. A cable deployment device according to claim 1, wherein, It also includes a conductive structure disposed on the frame and used for electrical connection with one end of the cable wound around the spindle structure.
6. A cable deployment device according to claim 5, wherein, The conductive structure includes a first conductive element and a second conductive element, which are rotatably disposed relative to each other and electrically connected. The first conductive element is used to electrically connect to one end of the cable wound around the mandrel structure, and the second conductive element is fixedly disposed relative to the frame and is used to electrically connect to an external power source.
7. A cable deployment device according to claim 6, wherein, The conductive structure further includes a first plug and a second plug. The first plug is electrically connected to the first conductive element and is used for plugging and connecting to a cable. The second plug is electrically connected to the second conductive element and is used for plugging and connecting to an external power source.
8. A cable deployment device according to any one of claims 5 to 7, wherein, The spindle structure includes a connector and multiple spindles, all of which are disposed on the connector and are circumferentially spaced around the conductive structure. The connector is connected to the ratchet.
9. A cable deployment device according to claim 1, wherein, The frame includes two mounting plates and at least one set of limiting rods. The limiting rod sets are located on one side of the spindle structure. Each limiting rod set includes two limiting rods arranged side by side and spaced apart. The opposite ends of the limiting rods are respectively connected to the two mounting plates. A limiting area that allows cables to pass through is formed between the two limiting rods in the same limiting rod set.
10. A cable deployment device according to claim 9, wherein, The limiting rod is provided with two limiting blocks, which are spaced apart along the axial direction of the limiting rod and are used to limit the cable in the limiting area along the axial direction of the limiting rod.