Pulley convenient to quickly install
By designing a detachable connecting cover structure, the problem of inconvenient operation caused by the non-detachable vehicle rescue pulleys has been solved, enabling quick connection status adjustment and simplified operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO QIYANG FORGING MACHINERY CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-12
AI Technical Summary
The existing vehicle rescue pulleys are not detachable, making it inconvenient and time-consuming to adjust the connection status.
Design a pulley including a wheel body, axle, a first connecting cover and a second connecting cover. The covers are detachably connected and form a connecting ring by a hook portion, allowing for the quick insertion and removal of trailer shackles or ropes.
It enables quick adjustment of connection status, simplifies the operation process, and reduces rescue time.
Smart Images

Figure CN224224847U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle rescue technology, and in particular to a pulley that is easy to install quickly. Background Technology
[0002] When a vehicle breaks down and cannot move on its own, it usually needs to be transported to a repair shop by a tow truck. Currently, the common method of rescue is to use pulleys and trailer hitches to connect the tow truck to the disabled vehicle.
[0003] Existing pulleys used for vehicle rescue connections have a wheel at one end for connecting to the disabled vehicle, and a connecting loop at the other end for connecting a trailer shackle or rope. This design presents several problems in practical use: because the pulley is not detachable, the trailer shackle or rope must be passed through the connecting loop when connecting. However, in actual rescue scenarios, adjustments to the connection may be necessary. With the existing pulley structure, this requires opening the trailer shackle or untying the rope, which is not only extremely inconvenient and increases the difficulty for rescue personnel, but also very time-consuming. Utility Model Content
[0004] To solve the above-mentioned technical problems, this application provides a pulley that is easy to install quickly, including a wheel body, a wheel axle, a first connecting cover and a second connecting cover;
[0005] The first connecting cover and the second connecting cover are respectively installed on both sides of the wheel body;
[0006] The axle passes sequentially through the center of the first connecting cover, the wheel, and the second connecting cover;
[0007] The first connecting cover includes an integrally formed first cover portion and a first hook portion;
[0008] The second connecting cover includes an integrally formed second cover portion and a second hook portion;
[0009] The first hook and the second hook together form a connecting loop for connecting a trailer shackle or a rope;
[0010] The first connecting cover and the second connecting cover are detachably connected.
[0011] In some embodiments of this application, a first slot is formed on the end face of the first hook portion near the second hook portion; a first block is formed on the end face of the second hook portion near the first hook portion; when both the first connecting cover and the second connecting cover are covered on both sides of the wheel body, the first block is engaged in the first slot.
[0012] In some embodiments of this application, a second locking block is formed on the end face of the first hook portion near the second hook portion; a second locking groove is formed on the end face of the second hook portion near the first hook portion; when the first connecting cover and the second connecting cover are both covered on both sides of the wheel body, the second locking block is engaged in the second locking groove.
[0013] In some embodiments of this application, a first reinforcing portion is formed at the connection between the first cover portion and the first hook portion.
[0014] In some embodiments of this application, a second reinforcing portion is formed at the connection between the second cover portion and the second hook portion.
[0015] In some embodiments of this application, the opening directions of the first hook portion and the second hook portion are opposite to each other.
[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: The pulley of this application, which is easy to install quickly, includes a wheel body, a wheel axle, a first connecting cover, and a second connecting cover; the first connecting cover and the second connecting cover are respectively installed on both sides of the wheel body; the wheel axle passes through the center of the first connecting cover, the wheel body, and the second connecting cover in sequence; the first connecting cover includes an integrally formed first cover portion and a first hook portion; the second connecting cover includes an integrally formed second cover portion and a second hook portion; the first hook portion and the second hook portion together form a connecting ring for connecting a trailer shackle or a rope; the first connecting cover and the second connecting cover are detachably connected; thus, when it is necessary to adjust the connection state, the first connecting cover or the second connecting cover can be opened to separate the first connecting cover and the second connecting cover, and the first hook portion and the second hook portion can be separated, so that the trailer shackle or rope can be disengaged or inserted into the connecting ring, thereby realizing the adjustment of the connection state. After the adjustment is completed, the first connecting cover and the second connecting cover are installed to realize the reset of the pulley. The adjustment process is simple to operate and takes little time.
[0017] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit this document. Attached Figure Description
[0018] The accompanying drawings, which form part of this document, are used to provide a further understanding of the document. The illustrative embodiments and descriptions herein are used to explain the document and do not constitute an undue limitation thereof. In the drawings:
[0019] Figure 1 This is a schematic diagram of the structure of a pulley that is easy to install according to an exemplary embodiment of this application;
[0020] Figure 2This is a side view of a pulley that facilitates quick installation, provided in an exemplary embodiment of this application;
[0021] Figure 3 This is a front view of a pulley for easy and quick installation provided in an exemplary embodiment of this application;
[0022] Figure 4 This is a schematic diagram of the structure of a pulley (with hidden second connecting cover) that facilitates quick installation, provided by an exemplary embodiment of this application;
[0023] Figure 5 This is a schematic diagram of the structure of a pulley (with a hidden first connecting cover) that is easy to install according to an exemplary embodiment of this application.
[0024] In the picture:
[0025] 10. First connecting cover; 20. Second connecting cover; 30. Wheel body; 40. Wheel axle;
[0026] 101. First cover part; 102. First hook part; 1021. First slot; 1022. Second block; 103. First reinforcing part; 201. Second cover part; 202. Second hook part; 2021. First block; 2022. Second slot; 203. Second reinforcing part. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.
[0028] When a vehicle breaks down and cannot move on its own, it usually needs to be transported to a repair shop by a tow truck. Currently, the common method of rescue is to use pulleys and trailer hitches to connect the tow truck to the disabled vehicle.
[0029] Existing pulleys used for vehicle rescue connections have a wheel at one end for connecting to the disabled vehicle, and a connecting loop at the other end for connecting a trailer shackle or rope. This design presents several problems in practical use: because the pulley is not detachable, the trailer shackle or rope must be passed through the connecting loop when connecting. However, in actual rescue scenarios, adjustments to the connection may be necessary. With the existing pulley structure, this requires opening the trailer shackle or untying the rope, which is not only extremely inconvenient and increases the difficulty for rescue personnel, but also very time-consuming.
[0030] Based on this, an exemplary embodiment of this application provides a pulley that is easy to install quickly, including a wheel body, a wheel axle, a first connecting cover, and a second connecting cover; the first connecting cover and the second connecting cover are respectively installed on both sides of the wheel body; the wheel axle passes through the center of the first connecting cover, the wheel body, and the second connecting cover in sequence; the first connecting cover includes an integrally formed first cover portion and a first hook portion; the second connecting cover includes an integrally formed second cover portion and a second hook portion; the first hook portion and the second hook portion together form a connecting ring for connecting a trailer shackle or a rope; the first connecting cover and the second connecting cover are detachably connected; thus, when it is necessary to adjust the connection state, the first connecting cover or the second connecting cover can be opened to separate the first connecting cover and the second connecting cover, and the first hook portion and the second hook portion can be separated, so that the trailer shackle or rope can be disengaged from or inserted into the connecting ring, that is, the connection state can be adjusted. After the adjustment is completed, the first connecting cover and the second connecting cover can be installed to reset the pulley. The adjustment process is simple to operate and takes little time.
[0031] An exemplary embodiment of this application provides a pulley that is easy to install quickly, such as... Figures 1 to 3As shown, the pulley includes a wheel body 30, a wheel axle 40, a first connecting cover 10, and a second connecting cover 20. The first connecting cover 10 and the second connecting cover 20 are respectively installed on both sides of the wheel body 30, and neither the first connecting cover 10 nor the second connecting cover 20 contacts the two end faces of the wheel body 30. A slide for accommodating a rope is formed on the circumferential surface of the wheel body 30. The wheel axle 40 passes through the center of the first connecting cover 10, the wheel body 30, and the second connecting cover 20 in sequence, and the wheel body 30 can rotate around the wheel axle 40. The first connecting cover 10 includes an integrally formed first cover portion 101 and a first hook portion 102; the second connecting cover 20 includes an integrally formed second cover portion 201 and a second hook portion 202; the opening directions of the first hook portion 102 and the second hook portion 202 are opposite to each other; the first hook portion 102 and the second hook portion 202 are close to each other and their end faces are tightly fitted, and the first hook portion 102 and the second hook portion 202 together form a connecting ring for connecting a trailer shackle or a rope; the first connecting cover 10 and the second connecting cover 20 are detachably connected.
[0032] When it is necessary to adjust the connection status between pulleys, trailer shackles, ropes, disabled vehicles, and rescue vehicles, the first connecting cover 10 or the second connecting cover 20 can be opened to separate the first connecting cover 10 and the second connecting cover 20, thereby separating the first hook part 102 and the second hook part 202. In this way, the trailer shackle or rope can be disengaged from or inserted into the connecting ring, thus realizing the adjustment of the connection status. After the adjustment is completed, the first connecting cover 10 and the second connecting cover 20 can be installed to reset the pulley. There is no need to open the trailer shackle or untie the rope. The adjustment process is simple to operate and takes little time.
[0033] For example, such as Figure 4 and 5 As shown, a first groove 1021 is formed on the end face of the first hook portion 102 near the second hook portion 202; a first locking block 2021 is formed on the end face of the second hook portion 202 near the first hook portion 102; when the first connecting cover 10 and the second connecting cover 20 are both closed on both sides of the wheel body 30, the first locking block 2021 is engaged in the first groove 1021. Preferably, the first locking block 2021 and the second groove 2022 are interference fits, which can achieve tight contact between the first locking block 2021 and the first groove 1021, thereby enabling the first connecting cover 10 and the second connecting cover 20 to be tightly connected at any time.
[0034] Continue to refer to Figure 4 and 5To further ensure a tight connection between the first connecting cover 10 and the second connecting cover 20, a second locking block 1022 is formed on the end face of the first hook portion 102 near the second hook portion 202; a second locking groove 2022 is formed on the end face of the second hook portion 202 near the first hook portion 102; when both the first connecting cover 10 and the second connecting cover 20 are closed on both sides of the wheel body 30, the second locking block 1022 is engaged in the second locking groove 2022; preferably, the second locking block 1022 and the second locking groove 2022 are interference fits.
[0035] Preferably, in order to increase the connection strength between the first cover portion 101 and the first hook portion 102, a first reinforcing portion 103 is formed at the connection between the first cover portion 101 and the first hook portion 102. In order to increase the connection strength between the second cover portion 201 and the second hook portion 202, a second reinforcing portion 203 is formed at the connection between the second cover portion 201 and the second hook portion 202.
[0036] In this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the article or device that includes said element.
[0037] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.
[0038] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if these modifications and variations fall within the scope of the claims of this application and their equivalents, the intent of this application also includes these modifications and variations.
Claims
1. A pulley that is easy to install quickly, characterized in that, It includes a wheel body, a wheel axle, a first connecting cover, and a second connecting cover; The first connecting cover and the second connecting cover are respectively installed on both sides of the wheel body; The axle passes sequentially through the center of the first connecting cover, the wheel, and the second connecting cover; The first connecting cover includes an integrally formed first cover portion and a first hook portion; The second connecting cover includes an integrally formed second cover portion and a second hook portion; The first hook and the second hook together form a connecting loop for connecting a trailer shackle or a rope; The first connecting cover and the second connecting cover are detachably connected.
2. The pulley for easy and quick installation according to claim 1, characterized in that, A first groove is formed on the end face of the first hook portion near the second hook portion; a first block is formed on the end face of the second hook portion near the first hook portion; when the first connecting cover and the second connecting cover are both covered on both sides of the wheel body, the first block is engaged in the first groove.
3. The pulley for easy and quick installation according to claim 2, characterized in that, A second locking block is formed on the end face of the first hook portion near the second hook portion; a second locking groove is formed on the end face of the second hook portion near the first hook portion; when the first connecting cover and the second connecting cover are both covered on both sides of the wheel body, the second locking block is engaged in the second locking groove.
4. The pulley for quick installation according to any one of claims 1 to 3, characterized in that, A first reinforcing portion is formed at the connection between the first cover portion and the first hook portion.
5. The pulley for quick installation according to any one of claims 1 to 3, characterized in that, A second reinforcing part is formed at the connection between the second cover portion and the second hook portion.
6. The pulley for easy and quick installation according to claim 1, characterized in that, The opening directions of the first hook portion and the second hook portion are opposite to each other.