Hand chain hoist with guide structure
By introducing a guiding structure, including a guide sleeve and a limiting shell, into the hand chain hoist, the problem of the chain getting stuck at the outlet is solved, ensuring smooth chain pulling and rotation, and improving efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG QIKALA HOISTING MASCH CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-26
AI Technical Summary
Existing chain hoists are prone to getting stuck at the outlet due to gaps between chain links when the chain is pulled, making it difficult to continue pulling.
A hand chain hoist with a guiding structure is designed. By setting guide sleeves on both sides of the rotating shell, the guide sleeves include arc-shaped connecting parts and guide tubes to restrict the relative position of the hand chain. A flange and a limiting shell are set on the rotating shell to prevent radial movement, ensuring smooth pulling and rotation of the chain.
It ensures that the chain remains in the optimal position when pulled at a vertical angle, allowing for smooth pulling and rotation, preventing the chain from getting stuck at the exit, and improving efficiency.
Smart Images
Figure CN224411272U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of manual chain hoist technology, and in particular to a manual chain hoist with a guiding structure. Background Technology
[0002] As a type of lightweight lifting equipment, the hand chain hoist is widely used in industrial and construction fields due to its small size and simple structure. It typically consists of a hand chain and a sprocket. By repeatedly pulling the hand chain, the length of the lifting chain is adjusted, thereby raising or lowering the load to achieve the desired state. Since the angle of the chain changes depending on the user's body shape, the outer casing protecting the sprocket is often rotatable.
[0003] Existing hand chain hoists, such as the one proposed by the applicant with publication number CN216613858U, often have the outlet of the handwheel cover directly on it. Therefore, when the hand chain is pulled, the gaps between the chain links can easily cause the hand chain to get stuck at the outlet, making it difficult to continue pulling. Therefore, the purpose of this application is to solve the above problem.
[0004] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention
[0005] Based on this, this application provides a hand chain hoist with a guiding structure to solve one of the above-mentioned technical problems.
[0006] The technical solution adopted by this application to solve its technical problem is a hand chain hoist with a guiding structure, including: a hoist assembly; a drive assembly, disposed on the hoist assembly, including a sprocket and a hand chain, wherein the sprocket is rotatably disposed on the sprocket and the hand chain rotates on the sprocket and can drive the hand to pull the sprocket, which is rotatably disposed on one side of the hoist assembly; a rotating shell, rotatably disposed on one side of the hoist assembly, wherein the sprocket is placed inside the rotating shell, and guide sleeves are provided on both sides of the rotating shell, wherein the hand chain passes through the guide sleeves to extend out of the rotating shell.
[0007] In some embodiments, two mounting grooves are formed on the outer periphery of the rotating shell, and the guide sleeve includes an arc-shaped connecting part and a guide tube. The guide tube is disposed on the arc-shaped connecting part, and the arc-shaped connecting part is installed on the outside of the mounting groove.
[0008] In some embodiments, when the two guide sleeves are mounted on the rotating housing, the centerlines of the two guide tubes always remain parallel.
[0009] In some embodiments, the two ends of the arc-shaped connector are mounted on the outside of the mounting groove by screws.
[0010] In some embodiments, a flange is provided on one side of the opening of the rotating shell, and a limiting shell capable of restricting radial movement of the flange is installed on the hoist assembly.
[0011] In some embodiments, the limiting shell has connecting holes at its four corners for mounting bolts, and a through hole at its center that allows the rotating shell to pass through. A radially protruding limiting portion is formed on the outer periphery of the through hole to limit the movement of the flange.
[0012] The beneficial effects of this application are as follows: the guide sleeve of this application can limit the relative position of the zipper extending from the rotating shell, so that when the zipper is pulled at a vertical angle, the guide sleeve zipper can maintain the optimal position, making the zipper pull smoother. At the same time, when the zipper drives the rotating shell to rotate, it has a large contact area with the inner wall of the guide tube, which can effectively drive the rotating shell to rotate, making the rotation smoother. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the main view structure of this application.
[0015] Figure 2 This is a schematic diagram of the exploded structure of this application.
[0016] Figure 3 This is a first cross-sectional structural diagram of this application.
[0017] Figure 4 This is a second cross-sectional structural diagram of this application.
[0018] The following are the reference numerals: 1. Hoist assembly; 11. Restriction shell; 111. Connecting hole; 112. Through hole; 113. Restriction part; 2. Drive assembly; 21. Sprocket; 22. Hand chain; 3. Rotating shell; 31. Guide sleeve; 311. Arc-shaped connecting part; 312. Guide tube; 32. Mounting groove; 33. Flange; 4. Screw. Detailed Implementation
[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of this application.
[0020] In the embodiments of this application, please refer to Figure 1-4 As shown, this application provides a hand chain hoist with a guiding structure, mainly including: a hoist assembly 1; a drive assembly 2, disposed on the hoist assembly 1, including a sprocket 21 and a hand chain 22, wherein the sprocket 21 is rotatably disposed on the hand chain 22 and can drive the hand chain 22 to rotate on the sprocket 21 and be rotatably disposed on one side of the hoist assembly 1; a rotating shell 3, rotatably disposed on one side of the hoist assembly 1, wherein the sprocket 21 is placed inside the rotating shell 3, and guide sleeves 31 are provided on both sides of the rotating shell 3, wherein the hand chain 22 passes through the guide sleeves 31 and extends out of the rotating shell 3.
[0021] Specifically, when the hand chain 22 is pulled vertically, some links on the chain can be confined to the inner wall of the guide sleeve 31, and the hand chain 22 provides a larger contact area when driving the rotating shell 3 to rotate, while preventing the sprocket 21 from getting stuck at the chain outlet due to the gap between the links when it rotates.
[0022] The following will continue to describe some preferred / improved embodiments based on the above embodiments. Any one of the following embodiments can be selected, or multiple embodiments can be combined.
[0023] Reference Figure 2 As shown, in order to enable the guide sleeve 31 to connect to the mounting groove 32 along the contour of the rotating shell 3, two mounting grooves 32 are opened on the outer periphery of the rotating shell 3. The guide sleeve 31 includes an arc-shaped connecting part 311 and a guide tube 312. The guide tube 312 is disposed on the arc-shaped connecting part 311, and the arc-shaped connecting part 311 is installed on the outside of the mounting groove 32.
[0024] Specifically, when the two guide sleeves 31 are installed on the rotating shell 3, the center lines of the two guide tubes 312 are always kept parallel. With this arrangement, the guide tubes 312 can become the channel for the normal descent of the hand chain 22 and play the role of restricting the hand chain 22.
[0025] Specifically, in order to install the arc-shaped connecting part 311, both ends of the arc-shaped connecting part 311 are installed on the outside of the mounting groove 32 by screws 4.
[0026] Reference Figure 2 and 4 As shown, to prevent the rotating shell 3 from moving radially, a flange 33 is provided on one side of the opening of the rotating shell 3. A limiting shell 11 is installed on the hoist assembly 1 to restrict the radial movement of the flange 33. The limiting shell 11 has connecting holes 111 at its four corners for mounting bolts. The limiting shell 11 has a through hole 112 in its center that allows the rotating shell 3 to pass through, and a radially protruding limiting part 113 is formed on the outer periphery of the through hole 112 to restrict the movement of the flange 33.
[0027] As an illustration, a groove may be provided in the limiting part 113 to accommodate the flange 33 and to limit or directly install it by abutting against the flange 33.
[0028] The various embodiments of this application have been described in detail above. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description. Finally, it should be noted that the above descriptions are merely preferred embodiments of this application, and the foregoing embodiments are only used to illustrate the technical solutions of this application, not to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A hand chain hoist with a guiding structure, characterized in that, include: gourd components; A drive assembly, disposed on the hoist assembly, includes a sprocket and a hand chain. The sprocket is rotatably disposed on the hand chain, which is capable of driving the hand chain to rotate. The sprocket is rotatably disposed on one side of the hoist assembly. A rotating shell is rotatably mounted on one side of the hoist assembly. The sprocket is placed inside the rotating shell. Guide sleeves are provided on both sides of the rotating shell. A pull chain passes through the guide sleeves to extend out of the rotating shell.
2. A hand chain hoist with a guiding structure according to claim 1, characterized in that, Two mounting grooves are formed on the outer periphery of the rotating shell. The guide sleeve includes an arc-shaped connecting part and a guide tube. The guide tube is disposed on the arc-shaped connecting part, and the arc-shaped connecting part is installed on the outside of the mounting groove.
3. A hand chain hoist with a guiding structure according to claim 2, characterized in that, When the two guide sleeves are installed on the rotating shell, the centerlines of the two guide tubes always remain parallel.
4. A hand chain hoist with a guiding structure according to claim 2, characterized in that, The two ends of the arc-shaped connector are mounted on the outside of the mounting groove by screws.
5. A hand chain hoist with a guiding structure according to claim 1, characterized in that, A flange is provided on one side of the opening of the rotating shell, and a limiting shell that can restrict the radial movement of the flange is installed on the hoist assembly.
6. A hand chain hoist with a guiding structure according to claim 5, characterized in that, The limiting shell has connecting holes at its four corners for mounting bolts, and a through hole in the center of the limiting shell that allows the rotating shell to pass through. A radially protruding limiting portion is formed on the outer periphery of the through hole to restrict the movement of the flange.