A winch that can be operated manually or electrically

Abstract

This utility model relates to the field of lifting equipment technology, and discloses a winch that can be operated manually or electrically. It includes a mounting plate, a winding reel internally mounted on a support frame, a drive rod mounted on one side of the support frame, and the drive rod being connected to the winding reel via a self-locking transmission component. A pair of connecting plates are located on opposite sides of the support frame, with a support plate fixed between them. A motor is fixedly mounted on the support plate, and the motor's output shaft is detachably connected to the drive rod. A control component connected to the connecting plates is provided on the support frame, allowing the connecting plates to have switchable movable or fixed modes. A manual lever is mounted on the support frame and parallel to the drive rod, and is connected to the drive rod via a reduction gear pair. The top of the manual lever extends out of the support frame and is coaxially fixed with a drive key. When the motor is connected to the drive rod, the drive key is located between the motor and the support frame. This design reduces the burden of manual operation and enhances the overall structural integrity.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a winch that can be operated manually or electrically. Background Technology

[0002] There are various types of winches. Currently, winches with manual and electric switching functions are more widely used in various scenarios. They can reliably ensure that the winch can continue to operate normally after a power outage.

[0003] However, some winches that can be used for both manual and electric operation employ an electric clutch structure to control the switching between manual and electric modes in order to improve switching efficiency. However, the manual mode is usually only needed in the event of a sudden power outage, which means that the electric clutch structure cannot effectively switch the drive mode in the event of a power outage. In existing technologies, such as the winch drive device with manual-electric switching function in patent number CN117550502A, although it is proposed to move the bevel gear by rotating the screw to move the shift fork, thereby controlling the engagement and disengagement of the electric and manual transmission gears, its hand crank is directly connected to the worm gear reducer. This results in a large workload on the high transmission ratio structure of the worm gear when the hand crank is turned by the operator. Furthermore, the hand crank structure and the motor drive structure are respectively arranged at both ends of the worm gear reducer, which increases the space ratio of the overall winch structure and affects the overall structural integrity.

[0004] In summary, there is an urgent need for a winch that can be operated manually or electrically to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a winch that can be operated manually or electrically, thereby solving the problems existing in the prior art. It can effectively switch between manual and electric drive modes of the winch, reduce the burden on manual operators, and enhance the overall structural integrity.

[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides a winch that can be used both manually and electrically, comprising:

[0007] The mounting plate has a support frame fixed to its top surface. A winding wheel is rotatably connected inside the support frame, and a drive rod is rotatably connected to one side of the support frame. The drive rod is connected to the winding wheel through a self-locking transmission component.

[0008] A pair of connecting plates are disposed on opposite sides of the support frame, and a support plate is fixedly connected between the pair of connecting plates. A motor is fixedly connected to the support plate, and the output shaft of the motor is detachably connected to the drive rod. A control component connected to the connecting plates is provided on the support frame so that the connecting plates have a switchable active or fixed mode.

[0009] A manual lever is mounted on the support frame and distributed parallel to the drive lever. The manual lever is connected to the drive lever via a reduction gear pair. The top of the manual lever extends out of the support frame and is coaxially fixed with a drive key. When the motor is connected to the drive lever, the drive key is located between the motor and the support frame.

[0010] Preferably, the control component includes:

[0011] The connecting shaft has a groove on the side wall of the support frame, the connecting shaft slides in the groove, and the end of the connecting shaft away from the support frame is fixedly connected to the adjacent connecting plate. A pair of connecting plates are rotatably connected to the support frame through the two connecting shafts.

[0012] A fixing bolt passes through the connecting plate and the support frame and is threaded with a nut. When the motor output shaft is fixed to the drive rod, the connecting plate is fixed to the support frame by the fixing bolt.

[0013] The top block is fixed to the opposite side of the outer wall of the support frame. When the motor output shaft is separated from the drive rod, the side wall of the connecting plate abuts against the top block, and the motor is located on one side of the manual lever.

[0014] Preferred options also include:

[0015] A fixing plate is fixedly connected to the support frame. A limiting ring is sleeved on the part of the connecting shaft that extends into the support frame. The fixing plate is located directly above the limiting ring, and the limiting ring is rotatably connected to the connecting shaft.

[0016] A connecting spring is fixed at both ends to the fixed plate and the limiting ring corresponding to the vertical direction, and the connecting shaft has an elastic tendency to move vertically upward.

[0017] Preferably, the top of the drive rod extends out of the support frame and is coaxially fixed to a first connecting flange, and the motor output shaft is fixed to a second connecting flange through a reduction gearbox, and the first connecting flange and the second connecting flange are detachably connected.

[0018] Preferably, the self-locking transmission component includes:

[0019] The worm gear is connected to the support frame and is coaxially fixed to the drive rod.

[0020] A worm gear is arranged on one side of the winding reel and is coaxially fixed to the winding reel, and the worm meshes with the worm gear.

[0021] Preferably, the connecting plate has an L-shaped structure, and the long side of the connecting plate is fixedly connected to the support plate.

[0022] Preferably, the support frame includes a pair of first support plates fixedly connected to each other on both sides of the top surface of the mounting plate, and a second support plate fixedly connected between the top ends of the pair of first support plates. The two ends of the drive rod are respectively connected to the second support plate and the mounting plate.

[0023] Preferably, the reduction gear pair includes a small gear, which is sleeved and fixedly connected to the manual lever, and a large gear is sleeved and fixedly connected to the drive lever, wherein the small gear meshes with the large gear.

[0024] The present invention discloses the following technical effects:

[0025] This utility model uses a support frame to support the rotation of the winding wheel, and a drive rod and a self-locking transmission component to drive the winding wheel to rotate, thereby completing the winding and unwinding of the wire rope. A motor is installed using a pair of connecting plates and a support plate, and a control component is set on the support frame so that the connecting plates can be selectively moved or fixed to the support frame. Combined with the detachable connection between the motor output shaft and the drive rod, the electric and manual drive modes of the drive rod can be switched.

[0026] In addition, after the motor is disconnected from the drive rod, the operator plugs and fixes the hand crank to the drive key, thereby driving the manual lever to rotate. The manual lever is connected to the drive rod through a reduction gear pair. Compared with directly rotating the drive rod, this effectively reduces the load borne by the operator when manually rotating. Furthermore, the manual lever and drive rod are distributed in parallel. When the motor and drive rod are connected, the drive key is arranged between the motor and the support frame, which effectively reduces the space occupied by the manual structure and achieves the goal of improving the overall structure. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure when the motor and the drive rod are connected in this utility model;

[0029] Figure 2 This is a diagram showing the positional relationship between the motor and the drive key in this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the manual lever driving the winding wheel in this utility model;

[0031] Figure 4 In this utility model Figure 3 A magnified view of a section at point A in the middle;

[0032] Figure 5 This is a schematic diagram of the structure of the motor when it is detached from the first connecting flange in this utility model;

[0033] Figure 6 This is a diagram showing the connection relationship between the connecting plate and the top block in this utility model;

[0034] Figure 7 This is a diagram showing the connection relationship between the drive lever and the manual lever in this utility model;

[0035] The components are as follows: 1. Mounting plate; 2. Rewinding wheel; 3. Drive rod; 4. Support frame; 5. Connecting plate; 6. Support plate; 7. Motor; 8. Manual lever; 9. Drive key; 10. Connecting shaft; 11. Fixing bolt; 12. Nut; 13. Top block; 14. Fixing plate; 15. Limiting ring; 16. Connecting spring; 17. First connecting flange; 18. Second connecting flange; 19. Connecting bolt; 20. Worm gear; 21. Worm wheel; 22. Pinion gear; 23. Main gear; 24. Reduction gearbox; 41. First support plate; 42. Second support plate. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] Reference Figures 1-7 This utility model provides a winch that can be used both manually and electrically, comprising:

[0039] Mounting plate 1, with a support frame 4 fixed to the top surface, a winding wheel 2 rotatably connected inside the support frame 4, and a drive rod 3 rotatably connected to one side of the support frame 4. The drive rod 3 is connected to the winding wheel 2 through a self-locking transmission component.

[0040] A pair of connecting plates 5 are set on opposite sides of the support frame 4. A support plate 6 is fixed between the pair of connecting plates 5. A motor 7 is fixed on the support plate 6, and the output shaft of the motor 7 is detachably connected to the drive rod 3. A control component connected to the connecting plates 5 is provided on the support frame 4 so that the connecting plates 5 have a switchable active or fixed mode.

[0041] Manual lever 8 is connected to support frame 4 and distributed parallel to drive lever 3. Manual lever 8 is connected to drive lever 3 through reduction gear pair. The top of manual lever 8 extends out of support frame 4 and is coaxially fixed with drive key 9. When motor 7 is connected to drive lever 3, drive key 9 is located between motor 7 and support frame 4.

[0042] This utility model uses a support frame 4 to rotate and support the winding wheel 2. The drive rod 3 and the self-locking transmission component drive the winding wheel 2 to rotate, thereby completing the winding and unwinding of the wire rope. A motor 7 is installed using a pair of connecting plates 5 and a support plate 6. A control component is set on the support frame 4 so that the connecting plate 5 can be selectively moved or fixed to the support frame 4. Combined with the detachable connection between the output shaft of the motor 7 and the drive rod 3, the electric and manual drive modes of the drive rod 3 can be switched.

[0043] Furthermore, after disengaging the motor 7 from the drive rod 3, the operator inserts and fixes the hand crank to the drive key 9, thereby driving the manual lever 8 to rotate. The manual lever 8 is connected to the drive rod 3 via a reduction gear pair. Compared to directly rotating the drive rod 3, this effectively reduces the load borne by the operator when manually rotating. In addition, the manual lever 8 and the drive rod 3 are distributed in parallel. When the motor 7 is connected to the drive rod 3, the drive key 9 is arranged between the motor 7 and the support frame 4, which effectively reduces the space ratio of the manual structure and achieves the goal of improving the overall structure.

[0044] Specifically, the hand crank has a conventional structure and can be connected to the drive key 9 to achieve rotation and fixation, making it convenient to manually rotate the manual lever 8.

[0045] Furthermore, the control components include:

[0046] The connecting shaft 10 and the support frame 4 have a sliding groove on their side wall. The connecting shaft 10 slides in the sliding groove, and the end of the connecting shaft 10 away from the support frame 4 is fixedly connected to the adjacent connecting plate 5. A pair of connecting plates 5 are rotatably connected to the support frame 4 through two connecting shafts 10.

[0047] The fixing bolt 11 passes through the connecting plate 5 and the support frame 4 and is threaded with a nut 12. When the output shaft of the motor 7 is fixed to the drive rod 3, the connecting plate 5 is fixed to the support frame 4 by the fixing bolt 11.

[0048] The top block 13 is fixed to the opposite side of the outer wall of the support frame 4. When the output shaft of the motor 7 is separated from the drive rod 3, the side wall of the connecting plate 5 abuts against the top block 13, and the motor 7 is located on one side of the manual lever 8.

[0049] By opening a groove on the support frame 4, the connecting shaft 10 is slidably connected in the groove, and a pair of connecting plates 5 are rotatably connected to the support frame 4 through the connecting shaft 10. After removing the fixing bolts 11, the connecting plate 5, the support plate 6 and the motor 7 can be flipped around the connecting shaft 10, and the motor 7 is set on one side of the manual lever 8. The connecting plate 5 is supported and fixed by the top block 13. At this time, the drive key 9 of the manual lever 8 is arranged at the top of the support frame 4 and the motor 7 also makes structural clearance for the drive key 9, so that the manual lever 8 can be effectively rotated manually.

[0050] When the output shaft of the motor 7 is fixed to the drive rod 3, the fixing bolt 11 fixes the connecting plate 5 to the support frame 4. Since the fixing bolt 11 also passes through the support frame 4, the connecting shaft 10 can also be stably fixed in the slide groove, ensuring the stability of the motor 7.

[0051] Furthermore, it also includes:

[0052] The fixed plate 14 is fixedly connected to the support frame 4. The part of the connecting shaft 10 that extends into the support frame 4 is fitted with a limiting ring 15. The fixed plate 14 is located directly above the limiting ring 15. The limiting ring 15 is rotatably connected to the connecting shaft 10.

[0053] The connecting spring 16 is fixed at both ends to the fixed plate 14 and the limiting ring 15 corresponding to the vertical direction, respectively, and the connecting shaft 10 has an elastic tendency to move vertically upward.

[0054] The connecting shaft 10 is provided with an elastic force by the fixing plate 14 and the connecting spring 16. Under the fixing action of the fixing bolt 11 on the connecting plate 5, the connecting shaft 10 and the fixing plate 14 cooperate to provide an elastic preload. This elastic preload is transmitted to the motor 7 and the drive rod 3 through the connecting plate 5 and the support plate 6, thereby improving the connection stability between the motor 7 and the drive rod 3.

[0055] Furthermore, the connecting spring 16 is fixedly connected to the limiting ring 15, so that when the connecting plate 5 is flipped, the elastic connection between the fixing plate 14 and the connecting shaft 10 can be effectively maintained even if the connecting shaft 10 rotates.

[0056] Furthermore, the top of the drive rod 3 extends out of the support frame 4 and is coaxially fixed to the first connecting flange 17, and the output shaft of the motor 7 is fixed to the second connecting flange 18 through the reduction gearbox 24. The first connecting flange 17 and the second connecting flange 18 are detachably connected.

[0057] By using a number of circumferentially spaced threaded bolts 19, the first connecting flange 17 and the second connecting flange 18 are detachably connected, thereby improving the connection strength during fixed connection and ensuring that the driving force of the motor 7 is effectively transmitted to the drive rod 3.

[0058] Furthermore, the self-locking transmission component includes:

[0059] The worm gear 20 is connected to the support frame 4 and is coaxially fixed to the drive rod 3.

[0060] The worm gear 21 is arranged on one side of the winding reel 2 and is coaxially fixed to the winding reel 2. The worm 20 meshes with the worm gear 21.

[0061] The winding wheel 2 is self-locked and fixed by the worm gear 21 and worm 20, so as to maintain the stability of winding and unwinding when the motor 7 or manual lever 8 stops.

[0062] Furthermore, the connecting plate 5 has an L-shaped structure, and the long side of the connecting plate 5 is fixedly connected to the support plate 6.

[0063] The connecting plate 5 is designed as an L-shaped structure. The short side of the connecting plate 5 is connected to the support frame 4 through the connecting shaft 10, while the long side of the connecting plate 5 extends relative to the support frame 4 to provide a position for the installation and fixing of the support plate 6 and the motor 7, and to prevent collision between the motor 7 and the support frame 4 during the flipping process.

[0064] In one embodiment of this technical solution, the wire rope wound on the winding wheel 2 extends horizontally toward the support plate 6, and the top block 13 is positioned above the winding wheel 2. After the flipping motor 7 abuts the connecting plate 5 against the top block 13, the wire rope can extend from below the motor 7 to the support frame 4, preventing the support plate 6 and the motor 7 from obstructing the wire rope.

[0065] Furthermore, the support frame 4 includes a pair of first support plates 41, which are fixedly connected to each other on both sides of the top surface of the mounting plate 1. A second support plate 42 is fixedly connected between the top ends of the pair of first support plates 41. The two ends of the drive rod 3 are respectively connected to the second support plate 42 and the mounting plate 1.

[0066] The take-up reel 2 is connected between a pair of first support plates 41, while the drive rod 3 is connected between the second support plate 42 and the mounting plate 1, which facilitates the meshing of the worm gear 21 and the worm 20, so as to realize the driving action of the drive rod 3 on the take-up reel 2. Similarly, the two ends of the manual lever 8 are connected between the second support plate 42 and the mounting plate 1, and are located on one side of the take-up reel 2 in the horizontal direction.

[0067] Furthermore, the reduction gear pair includes a pinion 22, which is sleeved and fixedly connected to the manual lever 8, and a large gear 23 is sleeved and fixedly connected to the drive lever 3, with the pinion 22 meshing with the large gear 23.

[0068] By meshing the small gear 22 with the large gear 23, when the winding wheel 2 is manually rotated, the manual lever 8 drives the small gear 22 to rotate, and the small gear 22 drives the large gear 23 to rotate, thereby reducing the driving burden of the direct rotation drive lever 3.

[0069] This utility model provides a working principle for a winch that can be operated manually or electrically:

[0070] When the electric drive winding wheel 2 is in operation, the connecting plate 5 and the support frame 4 are fixed by the fixing bolts 11 through the screw holes opened on the connecting plate 5 and the support frame 4. At this time, the support plate 6 is flipped vertically to the top of the support frame 4, so that the output shaft of the motor 7 is connected to the drive rod 3 vertically through the reduction gear box 24. The output shaft of the motor 7 and the drive rod 3 are fixedly connected by the first connecting flange 17 and the second connecting flange 18. The motor 7 is started to realize the electric drive of the drive rod 3. The drive key 9 is located between the motor 7 and the support frame 4, which effectively reduces the space occupation and improves the overall structure.

[0071] When manual rotation of the take-up reel 2 is required, the first connecting flange 17 and the second connecting flange 18 are manually disassembled and separated, and the fixing bolts 11 are removed. The connecting shaft 10 is elastically supported by the connecting spring 16, and the support plate 6 is moved. The motor 7 is flipped to one side of the support frame 4 around the support frame 4. The connecting plate 5 is supported and fixed by the top block 13. At this time, the drive key 9 is exposed on the top surface of the support frame 4, and the motor 7 makes structural clearance for the drive key 9, so that the personnel can directly connect the hand crank to the drive key 9, thereby driving the manual lever 8 to rotate. The small gear 22 rotates the large gear 23 to control the rotation of the drive lever 3, thus completing the manual drive of the take-up reel 2. This effectively realizes the switching between manual and electric drive modes and reduces the workload of manual drive.

[0072] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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.

[0073] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A winch that can be operated manually or electrically, characterized in that, include: Mounting plate (1), with a support frame (4) fixed to the top surface. A winding wheel (2) is rotatably connected inside the support frame (4), and a drive rod (3) is rotatably connected to one side of the support frame (4). The drive rod (3) is connected to the winding wheel (2) through a self-locking transmission component. A pair of connecting plates (5) are provided on opposite sides of the support frame (4), and a support plate (6) is fixed between the pair of connecting plates (5). A motor (7) is fixed on the support plate (6), and the output shaft of the motor (7) is detachably connected to the drive rod (3). A control component connected to the connecting plate (5) is provided on the support frame (4) so ​​that the connecting plate (5) has a switchable active or fixed mode. The manual lever (8) is connected to the support frame (4) and is distributed parallel to the drive rod (3). The manual lever (8) is connected to the drive rod (3) through a reduction gear pair. The top of the manual lever (8) extends out of the support frame (4) and is coaxially fixed with a drive key (9). When the motor (7) is connected to the drive rod (3), the drive key (9) is located between the motor (7) and the support frame (4).

2. The winch that can be used both manually and electrically according to claim 1, characterized in that, The control component includes: The connecting shaft (10) has a groove on the side wall of the support frame (4). The connecting shaft (10) slides in the groove, and the end of the connecting shaft (10) away from the support frame (4) is fixed to the adjacent connecting plate (5). A pair of connecting plates (5) are rotatably connected to the support frame (4) through the two connecting shafts (10). A fixing bolt (11) passes through the connecting plate (5) and the support frame (4) and is threaded with a nut (12). When the output shaft of the motor (7) is fixed to the drive rod (3), the connecting plate (5) is fixed to the support frame (4) by the fixing bolt (11). The top block (13) is fixed to the opposite side of the outer wall of the support frame (4). When the output shaft of the motor (7) is separated from the drive rod (3), the side wall of the connecting plate (5) abuts against the top block (13), and the motor (7) is located on one side of the manual rod (8).

3. The winch that can be used both manually and electrically according to claim 2, characterized in that, Also includes: A fixing plate (14) is fixed inside the support frame (4). A limiting ring (15) is sleeved on the part of the connecting shaft (10) that extends into the support frame (4). The fixing plate (14) is located directly above the limiting ring (15). The limiting ring (15) is rotatably connected to the connecting shaft (10). The connecting spring (16) is fixed at both ends to the fixed plate (14) and the limiting ring (15) corresponding to the vertical direction, respectively, and the connecting shaft (10) has an elastic tendency to move vertically upward.

4. The winch that can be used both manually and electrically according to claim 1, characterized in that: The top of the drive rod (3) extends out of the support frame (4) and is coaxially fixed to the first connecting flange (17). The output shaft of the motor (7) is fixed to the second connecting flange (18) through the reduction gearbox (24). The first connecting flange (17) and the second connecting flange (18) are detachably connected.

5. The winch that can be used both manually and electrically according to claim 1, characterized in that, The self-locking transmission component includes: The worm gear (20) is connected to the support frame (4) and is coaxially fixed to the drive rod (3); A worm gear (21) is arranged on one side of the winding reel (2) and is coaxially fixed to the winding reel (2). The worm (20) meshes with the worm gear (21).

6. The winch that can be used both manually and electrically according to claim 1, characterized in that: The connecting plate (5) has an L-shaped structure, and the long side of the connecting plate (5) is fixedly connected to the support plate (6).

7. The winch that can be used both manually and electrically according to claim 1, characterized in that: The support frame (4) includes a pair of first support plates (41) fixedly connected to each other on both sides of the top surface of the mounting plate (1), and a second support plate (42) fixedly connected between the top ends of the pair of first support plates (41). The two ends of the drive rod (3) are respectively connected to the second support plate (42) and the mounting plate (1).

8. The winch that can be used both manually and electrically according to claim 1, characterized in that: The reduction gear pair includes a small gear (22), which is sleeved and fixed on the manual lever (8). A large gear (23) is sleeved and fixed on the drive lever (3), and the small gear (22) meshes with the large gear (23).

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