A manual winch with automatic locking mechanism

Abstract

This utility model relates to the field of manual winch technology and discloses a manual winch with automatic locking capability. It includes a main body assembly comprising a base plate, a side plate fixed to the base plate, a rotating shaft connected to the side plate by a bearing, a small gear fixed to the rotating shaft, a drum connected to the side plate by a bearing, a large gear fixed to the drum, the small gear meshing with the large gear, a locking mechanism on the side plate, and a handle fixed to the rotating shaft. An installation assembly, located on the base plate, includes a mounting component, which includes a mounting base fixed to the base plate. The advantages of this utility model are: the installation assembly below the winch base plate achieves fixation by compression; simply pulling the pressure plate quickly completes the compression fixation between the winch and the plate-like structure, improving installation efficiency and ease of use. The installation assembly can adapt to plate-like structures of various thicknesses without requiring additional adjustments or modifications to the size or thickness of the plate-like structure.

Description

Technical Field

[0001] This utility model relates to the field of manual winch technology, and in particular to a manual winch that can automatically lock. Background Technology

[0002] Household small manual winches are commonly used for small-scale lifting and traction operations in home settings. To ensure the stability of the winch during use, it needs to be fixed to a plate-like structure such as a stool or table. Fixing requires multiple bolts, and through holes that can be pre-drilled in the plate-like structure to mate with the bolts. This requires special tools, making it difficult to install quickly. Drilling holes can cause irreversible damage to the plate-like structure, compromising its original structural strength and appearance. If the through hole position is off, it can also easily lead to winch fixation failure or tilting, limiting the flexible application of the winch on different plate-like structures and reducing the convenience of use. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the above and / or existing automatic locking manual winches, this utility model is proposed.

[0005] Therefore, the problem that this utility model aims to solve is that fixing a small household manual winch requires drilling holes in a plate-like structure and relies on bolt connections, which makes the operation cumbersome.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a manual winch with automatic locking capability, comprising a main body assembly including a base plate, a side plate fixed on the base plate, a rotating shaft connected to the side plate by a bearing, a small gear fixed on the rotating shaft, a drum connected to the side plate by a bearing, a large gear fixed on the drum, the small gear meshing with the large gear, a locking mechanism provided on the side plate, and a handle fixed on the rotating shaft; The mounting assembly, located on the base plate, includes a mounting component. The mounting component includes a mounting base fixed to the base plate. A first fixing block is fixed to the bottom of the mounting base. A second fixing block is provided on one side of the first fixing block. A lifting column is slidably arranged inside the mounting base, the first fixing block, and the second fixing block. A first connecting rod is hinged to the lifting column. A second connecting rod is hinged to the second fixing block. An extrusion plate is fixed to one side of the lifting column.

[0007] In a preferred embodiment of the automatically locking manual winch of this utility model, there are two of each of the first connecting rod and the second connecting rod.

[0008] As a preferred embodiment of the automatically locking manual winch of this utility model, the mounting base is fixed with a support frame at its bottom, and the first fixing block and the second fixing block are fixed to the inner wall of the support frame.

[0009] As a preferred embodiment of the automatically locking manual winch of this utility model, the installation assembly further includes a limiting member located within the first fixed block. The limiting member includes a limiting block slidably disposed within the first fixed block. A first spring is fixed to one side of the limiting block, and the other end of the first spring is fixed to the first fixed block. A limiting groove is provided on the lifting column.

[0010] As a preferred embodiment of the automatically locking manual winch of this utility model, there are two limiting blocks, multiple limiting grooves, and one side of the limiting block is inclined.

[0011] As a preferred embodiment of the automatically locking manual winch of this utility model, an inclined block is slidably disposed inside the first fixing block, a connecting block is fixed on the inclined block, a U-shaped plate is fixed on the connecting block, and there are two inclined blocks.

[0012] As a preferred embodiment of the automatically locking manual winch of this utility model, the limiting block is provided with an inclined groove, and the inclined block can contact the inclined groove.

[0013] As a preferred embodiment of the automatically locking manual winch of this utility model, a bending plate is fixed on one side of the U-shaped plate, and one end of the bending plate extends through to the outside of the support frame.

[0014] As a preferred embodiment of the automatically locking manual winch of this utility model, the first fixing block is provided with a movable groove corresponding to the U-shaped plate, the inner wall of the movable groove is fixed with a guide post, and the U-shaped plate is provided with a guide groove.

[0015] As a preferred embodiment of the automatically locking manual winch of this utility model, a second spring is fixed on one side of the U-shaped plate, and the other end of the second spring is fixed to the inner wall of the moving groove.

[0016] The advantages of this utility model are as follows: the installation components under the winch base plate are used to fix the winch by compression. Only the pressure plate needs to be pulled to quickly fix the winch to the plate structure, which improves the installation efficiency and ease of use. The installation components can adapt to plate structures of various thicknesses without the need for additional adjustments or modifications to the size or thickness of the plate structure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of 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. Among them: Figure 1 This is a structural diagram of a manual winch with automatic locking mechanism.

[0018] Figure 2 This is another view of the overall structure of a manual winch with automatic locking.

[0019] Figure 3 This is a cross-sectional view of the support frame for a manually operated winch that can be automatically locked.

[0020] Figure 4 This is a structural diagram of the first linkage of a manually operated winch that can automatically lock.

[0021] Figure 5 This is a structural diagram of a lifting column for a manual winch that can automatically lock.

[0022] Figure 6 For manual winches with automatic locking Figure 5 Cross-sectional structural diagram at point AA.

[0023] Figure 7 For manual winches with automatic locking Figure 6 Enlarged view of the structure at point B in the middle.

[0024] Figure 8 This is a cross-sectional view of the first fixing block of a manual winch that can be automatically locked. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Example 1 Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a manual winch with automatic locking capability. The manual winch with automatic locking capability includes a main body component 1, including a base plate 11. Side plates 12 are fixed on the base plate 11. There are two side plates 12. A rotating shaft 13 is connected to the side plate 12 by a bearing. One end of the rotating shaft 13 extends to the outside of the side plate 12. A small gear 14 is fixed on the rotating shaft 13. A drum 15 is connected to the side plate 12 by a bearing. A large gear 16 is fixed on the drum 15. The small gear 14 meshes with the large gear 16. A handle 18 is fixed on the rotating shaft 13. Rotating the handle 18 drives the rotating shaft 13 to rotate, which in turn drives the small gear 14 to rotate. Through the meshing of the small gear 14 and the large gear 16, the large gear 16 is driven to rotate synchronously, which in turn drives the drum 15 to realize the winding and unwinding of the traction rope. The above components together constitute the manual winch.

[0029] A locking mechanism 17 is provided on the side plate 12. The locking mechanism 17 is used to lock the rotation of the pinion 14. When the handle 18 is turned, the rotation of the pinion 14 is not restricted. When the rotation stops, the locking block on the locking mechanism 17 will engage with the pinion 14, thus preventing the pinion 14 from rotating further and preventing the drum 15 from rotating further under the gravity of the heavy object. The locking mechanism 17 is provided with two locking blocks, which can lock the clockwise and counterclockwise rotation of the drum 15 respectively. The two locking blocks cannot engage with the pinion 14 at the same time. When neither locking block engages with the pinion 14, the rotation of the drum 15 will not be restricted. This is the prior art. This solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0030] Mounting component 2, located on base plate 11, includes mounting component 21. Mounting component 21 is designed to fix the manual winch on a plate-like structure within a certain size range for easy subsequent use.

[0031] Mounting component 21 includes mounting base 211 fixed to base plate 11. Mounting base 211 is U-shaped and can be fitted onto the edge of plate structure from its opening.

[0032] A first fixing block 212 is fixed to the bottom of the mounting base 211, and a second fixing block 213 is provided on one side of the first fixing block 212. A lifting column 214 is slidably arranged inside the mounting base 211, the first fixing block 212, and the second fixing block 213. A pressing plate 217 is fixed to one side of the lifting column 214. By pushing the pressing plate 217 closer to the plate structure and pressing it, and with the cooperation of the mounting base 211, the base plate 11 can be fixed to the plate structure by pressing.

[0033] Several rubber blocks 217-1 are fixed on the extrusion plate 217 to increase the friction between the plate structure and the extrusion plate 217. Rubber blocks 217-1 are also provided on the inner end face of the rectangular groove formed by the mounting base 211 to increase the friction with the plate structure and improve the stability of the installation.

[0034] A first connecting rod 215 is hinged to the lifting column 214, and a second connecting rod 216 is hinged to the second fixing block 213. The first connecting rod 215 and the second connecting rod 216 are hinged together. A pressure rod 219 is fixed on the first connecting rod 215, and there is a certain angle between the pressure rod 219 and the first connecting rod 215.

[0035] In the initial state, the extrusion plate 217 will be located at the lowest position in the mounting base 211 under the action of gravity. At this time, the angle between the first link 215 and the second link 216 is the smallest, and the pressure rod 219 is at an upward tilting angle.

[0036] When the pressure bar 219 is pressed down, the angle between the first link 215 and the second link 216 will gradually increase. Since one end of the second link 216 is fixed, the other end of the second link 216 will rotate, thereby causing the position of the first link 215 to change. The end of the first link 215 that is hinged to the lifting column 214 can only move in a straight line, thereby causing the lifting column 214 to move closer to the base plate 11, and finally causing the pressing plate 217 to move upward, and to press against the plate structure, thereby fixing the base plate 11 to the plate structure by pressing.

[0037] Example 2 Reference Figures 3-7 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0038] Specifically, there are two of each of the first link 215 and the second link 216.

[0039] Specifically, a support frame 218 is fixed to the bottom of the mounting base 211. The first fixing block 212 and the second fixing block 213 are fixed to the inner wall of the support frame 218. The support frame 218 is provided to support the second fixing block 213. A through groove is provided on the support frame 218 to avoid obstructing the pressing of the pressure rod 219.

[0040] Specifically, the installation component 2 also includes a limiting member 22 located within the first fixing block 212. The limiting member 22 is configured to lock the position of the extrusion plate 217, ensuring that the position of the extrusion plate 217 will not shift after installation, thus affecting the stability of the winch fixing.

[0041] The limiting component 22 includes a limiting block 221 slidably disposed within the first fixed block 212. A first spring 222 is fixed on one side of the limiting block 221, and the other end of the first spring 222 is fixed on the first fixed block 212. A limiting groove 214-1 is provided on the lifting column 214, and the limiting block 221 can engage with the limiting groove 214-1. The first spring 222 applies a continuous pushing force to the limiting block 221 to ensure that the limiting block 221 can engage with the limiting groove 214-1. The first spring 222 is also used for the reset of the limiting block 221.

[0042] Specifically, there are two limit blocks 221 and multiple limit grooves 214-1. By setting multiple limit grooves 214-1, the lifting column 214 can be locked in multiple positions, thereby adapting to plate structures of different thicknesses within a certain range.

[0043] One side of the limiting block 221 is inclined. By setting it in an inclined shape, when the lifting column 214 moves upward, the inclined surface of the limiting groove 214-1 will squeeze the inclined surface of the limiting block 221, causing the limiting block 221 to move away from the limiting groove 214-1. The first spring 222 is compressed. At this time, the limiting block 221 will not hinder the lifting column 214 from moving towards the bottom plate 11, that is, it will not hinder the squeezing plate 217 from squeezing the plate structure. When the lifting column 214 has a tendency to move downward, the engagement of the limiting block 221 and the limiting groove 214-1 will hinder the lifting column 214 from moving downward, thereby preventing the lifting column 214 from moving downward and thus preventing the squeezing plate 217 from moving away from the plate structure, which would cause the winch position to shift.

[0044] Example 3 Reference Figures 5-8 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0045] Specifically, a slidable inclined block 223 is slidably disposed within the first fixed block 212, a connecting block 224 is fixed on the inclined block 223, and a U-shaped plate 225 is fixed on the connecting block 224. There are two inclined blocks 223 and two connecting blocks 224, each corresponding to a limiting block 221. The inclined blocks 223 are used to release the limiting block 221 from the limiting groove 214-1, and the U-shaped plate 225 is used to connect the two inclined blocks 223, so that the two can move upward or downward synchronously.

[0046] Specifically, the limiting block 221 has a groove 221-1, and the inclined block 223 can contact the groove 221-1. In the initial state, the inclined block 223 is located above the limiting block 221 and does not contact the limiting block 221, so it will not affect the movement of the limiting block 221. When the inclined block 223 moves downward, the inclined surface of the inclined block 223 will gradually contact the groove 221-1 and squeeze the groove 221-1, thereby compressing the first spring 222. The limiting block 221 gradually moves away from the limiting groove 214-1, and finally the two separate. Under the action of gravity, the pressing plate 217 will move downward to the initial position. Alternatively, the pressure rod 219 can be manually lifted upward to reset the pressing plate 217. The reset of the pressing plate 217 will also drive the first connecting rod 215 and the second connecting rod 216 to reset, thus facilitating the next use.

[0047] Specifically, a bent plate 226 is fixed to one side of the U-shaped plate 225. One end of the bent plate 226 extends through to the outside of the support frame 218. The support frame 218 and the first fixing block 212 are provided with grooves corresponding to the bent plate 226. Pressing the bent plate 226 downwards can drive the U-shaped plate 225 to move downwards, thereby driving the inclined block 223 to move, so that the limiting block 221 separates from the limiting groove 214-1.

[0048] Specifically, the first fixed block 212 has a moving groove 212-1 corresponding to the U-shaped plate 225. The inner wall of the moving groove 212-1 is fixed with a guide post 227. The U-shaped plate 225 has a guide groove. There are three guide posts 227, which are located on the three sides of the U-shaped plate 225 respectively. Through the cooperation of the guide posts 227 and the guide groove, the U-shaped plate 225 can move smoothly in the moving groove 212-1.

[0049] Specifically, a second spring 228 is fixed on one side of the U-shaped plate 225, and the other end of the second spring 228 is fixed on the inner wall of the moving groove 212-1. There are three second springs 228, all of which are sleeved on the three guide posts 227. The second springs 228 apply a continuous upward pushing force to the U-shaped plate 225 to prevent the U-shaped plate 225 from moving downward under the action of gravity, which would cause the inclined block 223 to move downward and contact the limiting block 221, thereby affecting the movement of the limiting block 221.

[0050] In use, mount the mounting base 211 onto the edge of the plate-like structure through the opening of the mounting base 211. Ensure that the top and side surfaces of the plate-like structure are flush with the end face of the mounting base 211. Then, press down on the pressure rod 219. The angle between the first connecting rod 215 and the second connecting rod 216 will gradually increase, causing the lifting column 214 to move closer to the base plate 11. This will eventually cause the pressing plate 217 to move upward, pressing against the plate-like structure. Simultaneously, as the lifting column 214 moves upward, the inclined surface of the limiting groove 214-1 will press against the inclined surface of the limiting block 221, causing the limiting block 221 to move away from the limiting position. When the groove 214-1 moves in the direction of the first spring 222, the limiting block 221 will not obstruct the lifting column 214 from moving towards the base plate 11. When the lifting column 214 tends to move downward, the engagement of the limiting block 221 with the limiting groove 214-1 will obstruct the lifting column 214 from moving downward, thereby preventing the lifting column 214 from moving downward and thus preventing the extrusion plate 217 from moving away from the plate structure and causing the winch position to shift. Thus, the base plate 11 is fixed to the plate structure by extrusion, so that the winch can be installed quickly without drilling holes in the plate structure.

[0051] When the winch needs to be disassembled, pressing down on the bending plate 226 will cause the U-shaped plate 225 to move downward, thereby causing the inclined block 223 to move downward. The inclined surface of the inclined block 223 will gradually contact the inclined groove 221-1 and squeeze the inclined groove 221-1, thereby compressing the first spring 222. The limiting block 221 will gradually move away from the limiting groove 214-1, and finally the two will separate. Under the action of gravity, the pressing plate 217 will move downward to the initial position. Alternatively, the pressure rod 219 can be manually lifted upward to reset the pressing plate 217. The reset of the pressing plate 217 will also drive the first connecting rod 215 and the second connecting rod 216 to reset, thus facilitating the next use. Then the mounting base 211 can be easily separated from the plate structure.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An automatically lockable hand winch, characterized in that: include, The main component (1) includes a base plate (11), a side plate (12) fixed on the base plate (11), a rotating shaft (13) connected to the side plate (12) by a bearing, a small gear (14) fixed on the rotating shaft (13), a drum (15) connected to the side plate (12) by a bearing, a large gear (16) fixed on the drum (15), the small gear (14) meshing with the large gear (16), a locking mechanism (17) provided on the side plate (12), and a handle (18) fixed on the rotating shaft (13). The mounting assembly (2), located on the base plate (11), includes a mounting component (21). The mounting component (21) includes a mounting seat (211) fixed on the base plate (11). A first fixing block (212) is fixed at the bottom of the mounting seat (211). A second fixing block (213) is provided on one side of the first fixing block (212). A lifting column (214) is slidably arranged in the mounting seat (211), the first fixing block (212), and the second fixing block (213). A first connecting rod (215) is hinged on the lifting column (214). A second connecting rod (216) is hinged on the second fixing block (213). A pressing plate (217) is fixed on one side of the lifting column (214).

2. The self-locking hand winch of claim 1, wherein: There are two of each of the first link (215) and the second link (216).

3. An automatically lockable hand-operated winch according to claim 1 or 2, characterised in that: The mounting base (211) has a support frame (218) fixed at its bottom, and the first fixing block (212) and the second fixing block (213) are fixed to the inner wall of the support frame (218).

4. An automatically lockable hand-operated winch as claimed in claim 3, wherein: The installation assembly (2) further includes a limiting member (22) located in the first fixing block (212). The limiting member (22) includes a limiting block (221) slidably disposed in the first fixing block (212). A first spring (222) is fixed on one side of the limiting block (221), and the other end of the first spring (222) is fixed on the first fixing block (212). A limiting groove (214-1) is provided on the lifting column (214).

5. An automatically lockable hand-operated winch as claimed in claim 4, wherein: There are two limiting blocks (221) and multiple limiting grooves (214-1). One side of the limiting block (221) is inclined.

6. An automatically lockable hand-operated winch as claimed in claim 4 or 5, characterised in that: An inclined block (223) is slidably disposed inside the first fixed block (212), a connecting block (224) is fixed on the inclined block (223), and a U-shaped plate (225) is fixed on the connecting block (224). There are two inclined blocks (223).

7. An automatically lockable hand-operated winch as claimed in claim 6, characterised in that: The limiting block (221) has an inclined groove (221-1) and the inclined block (223) can contact the inclined groove (221-1).

8. An automatically lockable hand-operated winch as claimed in claim 7, characterised in that: A bent plate (226) is fixed on one side of the U-shaped plate (225), and one end of the bent plate (226) extends through to the outside of the support frame (218).

9. An automatically lockable hand-operated winch according to claim 7 or 8, characterised in that: The first fixing block (212) has a moving groove (212-1) corresponding to the U-shaped plate (225), and a guide post (227) is fixed on the inner wall of the moving groove (212-1). The U-shaped plate (225) has a guide groove.

10. An automatically lockable hand-operated winch as claimed in claim 9, characterised in that: A second spring (228) is fixed on one side of the U-shaped plate (225), and the other end of the second spring (228) is fixed on the inner wall of the moving groove (212-1).

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