Quickly dismountable hoisting pulley block

Abstract

The utility model relates to hoisting equipment technical field discloses a hoist pulley block of quick detachable, solves the problem of background art, it includes pulley block main part, quick -witted connecting device, installation track, auxiliary positioning device and locking device, pulley block main part is constituted by at least two pulleys, pulley axle that penetrates pulley and bilateral pulley support, pulley support top is equipped with axle hole, quick -witted connecting device includes the elastic dog of the clamping slot and pulley support side wall that is established in pulley axle both ends, the convex part of dog and clamping slot form radial locking, the installation track includes track base body and the T type guide slot of top surface, pulley support top is fixed with the sliding fit of T type guide slot's sliding block, the utility model discloses, can greatly shorten the installation and dismounting time of pulley block, ensures the stability and service life effect in hoisting process.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting equipment technology, specifically a hoisting pulley block that can be quickly assembled and disassembled. Background Technology

[0002] In existing hoisting operations, pulley blocks are a common hoisting tool, but traditional pulley blocks have many inconveniences in the installation and disassembly process.

[0003] Connecting components are usually fixed with bolts, and the disassembly and assembly process is time-consuming and requires tools; the installation position of the pulley block is difficult to adjust and requires the use of large auxiliary equipment for positioning. These problems result in excessive preparation and completion time for hoisting operations, reducing work efficiency, increasing labor intensity and equipment dependence. To address these issues, we propose a hoisting pulley block that can be quickly disassembled and assembled. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides the following technical solution: a quick-assembly and detachable hoisting pulley block, comprising a pulley block body, a quick-connect device, a mounting rail, an auxiliary positioning device, and a locking device.

[0005] The main body of the pulley block consists of at least two pulleys, pulley axles passing through the pulleys, and pulley supports on both sides. The top of each pulley support has an axle hole.

[0006] The quick-connect device includes slots at both ends of the pulley shaft and elastic claws on the sidewalls of the pulley bracket. The protrusions of the claws form a radial lock with the slots.

[0007] The mounting track includes a track base and a T-shaped guide groove on the top surface. A slider that slides in cooperation with the T-shaped guide groove is fixed to the top of the pulley bracket.

[0008] The auxiliary positioning device includes positioning holes spaced apart on the track base and spring positioning pins on the top of the pulley bracket, with the axis of the positioning pins perpendicular to the track plane.

[0009] The locking device includes a locking screw hole on the side of the slider and a clamping bolt through the screw hole, the end of which abuts against the side wall of the T-shaped guide groove.

[0010] Preferably, the elastic claw includes a U-shaped spring steel sheet and a manual unlocking lever. The lever is exposed on the side wall of the pulley bracket, which facilitates manual unlocking. By specifying the structure of the elastic claw, the operability and reliability of the quick connection device are increased, while also making it easier for users to unlock manually and improving the convenience of disassembly and assembly.

[0011] Preferably, the positioning hole is a blind hole, and an elastic buffer pad is provided at the bottom of the hole. The blind hole design can prevent impurities from entering, and the elastic buffer pad can reduce the impact force between the positioning pin and the positioning hole, extend the service life, and improve the stability and reliability of positioning.

[0012] Preferably, the end of the clamping bolt is provided with a rubber pad, which contacts the side wall of the T-shaped guide groove. The rubber pad can prevent the clamping bolt from causing wear to the track base, and at the same time provide a certain elastic buffer to ensure that the locking device will not damage the track base when locking, thus extending the service life of the track.

[0013] Preferably, the outer periphery of the slider is provided with a wear-resistant coating, which is a polytetrafluoroethylene coating. It has good wear resistance and self-lubricating properties, which can reduce the friction between the slider and the T-shaped guide groove, extend the service life of the slider and the track, reduce sliding resistance, and improve the moving efficiency of the pulley block.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] During operation, insert the pulley axle into the center hole of the pulley to ensure free rotation. Place the pulley bracket on the T-shaped guide groove of the track base, ensuring good sliding fit between the slider and the guide groove. Align the pulley axle with the shaft hole of the pulley bracket and insert it into the shaft hole. When the pulley axle is fully inserted, the protrusion of the elastic pawl automatically engages in the slot, completing the quick connection between the pulley and the pulley bracket. Push the pulley bracket along the T-shaped guide groove to the predetermined position. When the pulley bracket reaches the predetermined position, the spring positioning pin automatically inserts into the positioning hole on the track base, completing the quick positioning of the pulley assembly. Tighten the clamping bolt so that the end of the clamping bolt abuts against the side wall of the T-shaped guide groove through the rubber pad, firmly securing the pulley bracket. Fixed to the track base, ensure sufficient tightening force of the clamping bolts to prevent the pulley block from loosening during hoisting. When disassembly is required, loosen the clamping bolts to release the locking state of the pulley bracket. If the pulley bracket needs to be moved, the spring positioning pin can be manually pulled out of the positioning hole. By manually operating the unlocking lever, the protrusion of the elastic claw can be disengaged from the slot, and the pulley shaft can be pulled out of the shaft hole of the pulley bracket to complete the disassembly of the pulley. Move the pulley bracket along the T-shaped guide groove to the end of the track base or the disassembly position, and remove the pulley bracket from the track base to complete the disassembly of the entire pulley block. This greatly shortens the installation and disassembly time of the pulley block and ensures the stability and service life during hoisting. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a front view of the overall structure of this utility model;

[0018] In the diagram: 1. Pulley; 2. Pulley shaft; 201. Slot; 3. Pulley bracket; 301. Shaft hole; 302. Claw; 303. Protrusion; 304. Slider; 305. Positioning pin; 306. Locking screw hole; 307. Pressure bolt; 308. Paddle; 4. Track base; 401. Positioning hole; 5. Pressure bolt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Depend on Figure 1 As shown, this utility model includes a pulley block body, a quick-connect device, a mounting rail, an auxiliary positioning device, and a locking device.

[0021] The main body of the pulley block consists of at least two pulleys 1, a pulley axle 2 passing through the pulleys 1, and pulley supports 3 on both sides. The top of the pulley support 3 is provided with an axle hole 301.

[0022] The quick-connect device includes slots 201 at both ends of the pulley shaft 2 and elastic claws 302 on the side wall of the pulley bracket 3. The protrusions 303 of the claws 302 form a radial lock with the slots 201.

[0023] The mounting track includes a track base 4 and a T-shaped guide groove on the top surface. A slider 304 that slides in conjunction with the T-shaped guide groove is fixed to the top of the pulley bracket 3.

[0024] The auxiliary positioning device includes positioning holes 401 spaced apart on the track base 4 and spring positioning pins 305 on the top of the pulley bracket 3. The axis of the positioning pins 305 is perpendicular to the track plane.

[0025] The locking device includes a locking screw hole 306 on the side of the slider 304 and a clamping bolt 5 passing through the screw hole, with the end of the clamping bolt 5 abutting against the side wall of the T-shaped guide groove.

[0026] The elastic claw 302 includes a U-shaped spring steel sheet 307 and a manual unlocking lever 308. The lever 308 is exposed on the side wall of the pulley bracket 3, which facilitates manual unlocking. By specifying the structure of the elastic claw, the operability and reliability of the quick connection device are increased, while also making it easier for users to unlock manually and improving the convenience of disassembly and assembly.

[0027] The positioning hole 401 is a blind hole, and an elastic buffer pad is provided at the bottom of the hole. The blind hole design can prevent impurities from entering, and the elastic buffer pad can reduce the impact force between the positioning pin 305 and the positioning hole 401, extend the service life, and improve the stability and reliability of positioning.

[0028] The end of the clamping bolt 5 is equipped with a rubber pad, which contacts the side wall of the T-shaped guide groove. The rubber pad can prevent the clamping bolt 5 from causing wear to the track base 4, and at the same time provide a certain elastic buffer to ensure that the locking device will not damage the track base when locking, thus extending the service life of the track.

[0029] The outer periphery of the slider 304 is provided with a wear-resistant coating, which is a polytetrafluoroethylene coating. It has good wear resistance and self-lubricating properties, which can reduce the friction between the slider 304 and the T-shaped guide groove, extend the service life of the slider and the track, reduce sliding resistance, and improve the moving efficiency of the pulley block.

[0030] Working principle: During operation, the pulley shaft 2 is inserted into the center hole of the pulley 1 to ensure the pulley can rotate freely. The pulley bracket 3 is placed on the T-shaped guide groove of the track base 4, ensuring good sliding fit between the slider 304 and the guide groove. The pulley shaft 2 is aligned with the shaft hole 301 of the pulley bracket 3 and inserted into the shaft hole 301. When the pulley shaft 2 is inserted into the correct position, the protrusion 303 of the elastic claw 302 automatically engages with the slot 201, completing the quick connection between the pulley and the pulley bracket. This pushes the pulley bracket 3 along the T-shaped guide groove to the predetermined position. When the pulley bracket 3 reaches the predetermined position, the spring positioning pin 305 automatically inserts into the positioning hole 401 on the track base 4, completing the quick positioning of the pulley assembly. By tightening the clamping bolt 5, the end of the clamping bolt 5 abuts against the side wall of the T-shaped guide groove through the rubber pad, thus positioning the pulley... The bracket 3 is firmly fixed to the track base 4, ensuring sufficient tightening force of the clamping bolt 5 to prevent the pulley block from loosening during hoisting. When disassembly is required, loosen the clamping bolt 5 to release the locking state of the pulley bracket 3. If it is necessary to move the pulley bracket 3, the spring positioning pin 305 can be manually pulled out from the positioning hole 401. By manually operating the unlocking lever 308, the protrusion 303 of the elastic claw 302 can be disengaged from the slot 201, and the pulley shaft 2 can be pulled out from the shaft hole 301 of the pulley bracket 3 to complete the disassembly of the pulley. Move the pulley bracket 3 along the T-shaped guide groove to the end of the track base 4 or the disassembly position, and remove the pulley bracket 3 from the track base 4 to complete the disassembly of the entire pulley block. This greatly shortens the installation and disassembly time of the pulley block and ensures the stability and service life during hoisting.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A quick-assembly and disassembly hoisting pulley block, characterized in that: Includes the pulley block body, quick-connect device, mounting rail, auxiliary positioning device, and locking device. The main body of the pulley assembly consists of at least two pulleys (1), a pulley axle (2) passing through the pulleys (1), and pulley supports (3) on both sides. The top of the pulley support (3) is provided with an axle hole (301). The quick-connect device includes slots (201) at both ends of the pulley shaft (2) and elastic claws (302) on the side wall of the pulley bracket (3). The protrusions (303) of the claws (302) form a radial lock with the slots (201). The mounting track includes a track base (4) and a T-shaped guide groove on the top surface. A slider (304) that slides in cooperation with the T-shaped guide groove is fixed on the top of the pulley bracket (3). The auxiliary positioning device includes positioning holes (401) spaced apart on the track base (4) and a spring positioning pin (305) on the top of the pulley bracket (3). The axis of the positioning pin (305) is perpendicular to the track plane. The locking device includes a locking screw hole (306) on the side of the slider (304) and a clamping bolt (5) through the screw hole, the end of the clamping bolt (5) abutting against the side wall of the T-shaped guide groove.

2. The quick-assembly and disassembly lifting pulley block according to claim 1, characterized in that: The elastic claw (302) includes a U-shaped spring steel sheet (307) and a manual unlocking lever (308), which is exposed on the side wall of the pulley bracket (3).

3. A quick-assembly and disassembly lifting pulley block according to claim 2, characterized in that: The positioning hole (401) is a blind hole, and an elastic buffer pad is provided at the bottom of the hole.

4. A quick-assembly and disassembly lifting pulley block according to claim 3, characterized in that: The end of the clamping bolt (5) is provided with a rubber pad, which contacts the side wall of the T-shaped guide groove.

5. A quick-assembly and disassembly lifting pulley block according to claim 4, characterized in that: The outer periphery of the slider (304) is provided with a wear-resistant coating, which is a polytetrafluoroethylene coating.

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