Anti-falling structure of nylon pulley

Abstract

The utility model discloses an anti-falling structure of a nylon pulley. The anti-falling structure comprises a wheel carrier, the nylon wheel body has the beneficial effects that the linkage limiting assembly consisting of the cross-shaped screw sleeve, the screw rod, the limiting table, the sliding chute, the linkage plate, the linkage rod and the pressing plate is arranged on the wheel frame, so that when the nylon wheel body is used in the hoisting process, the screw rod can extend out of the cross-shaped screw sleeve in the rotating process of the cross-shaped screw sleeve; the screw rod can drive the linkage plate and the linkage rod to move downwards after extending out of the cross-shaped screw sleeve, the linkage rod can press the pressing plate on a hexagon bolt and a hexagon nut which are used for fixing the nylon wheel body after moving downwards, pressing and limiting of the hexagon bolt and the hexagon nut are achieved, and the risk that the hexagon bolt and the hexagon nut loosen and fall off is reduced; therefore, falling of the nylon wheel body caused by loosening and falling of the hexagon bolt and the hexagon nut is prevented, and the safety of the nylon wheel body in the lifting process is better.

Description

Technical Field

[0001] This utility model relates to the field of anti-detachment technology for nylon pulleys, and specifically to an anti-detachment structure for nylon pulleys. Background Technology

[0002] Nylon pulleys are a common type of pulley used in mechanical systems, primarily made of nylon (polyamide) material. Nylon's excellent wear resistance, low coefficient of friction, good mechanical strength, and chemical stability make it an ideal choice for many pulley applications. Nylon pulley-type hangers are frequently used for lifting objects.

[0003] The existing nylon pulleys on the nylon pulley hanger are mainly installed and fixed by a hex bolt and a hex nut. Although the hex bolt and nut can be used to install the nylon pulley on the wheel frame, after repeated lifting and use, the hex bolt and nut on the wheel frame may loosen. This leads to the risk that the nylon pulley may fall off the wheel frame due to the complete separation of the hex bolt and nut during use, making the nylon pulley less safe to use during lifting. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to provide a nylon pulley anti-detachment structure that can effectively reduce the risk of hexagonal bolts and hexagonal nuts on nylon pulleys loosening and falling off by means of double-sided synchronous clamping, thereby ensuring the stable use of nylon pulleys during lifting.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: This utility model proposes a nylon pulley anti-detachment structure, including a wheel frame, a nylon wheel body is provided on the lower side of the wheel frame, a hexagonal bolt is installed between the nylon wheel body and the wheel frame, a hexagonal nut is installed on the free end of the hexagonal bolt, and a linkage limiting component is installed on the upper side of the wheel frame. The linkage limiting component includes a cross-screw sleeve, a screw, a limiting platform, a sliding groove, a linkage plate, a linkage rod, and a pressure plate.

[0008] Furthermore, the cross-shaped threaded sleeve is rotatably mounted in the middle of the top end of the wheel frame, the screw is connected to the bottom end of the cross-shaped threaded sleeve, and the linkage plate is mounted on the bottom end of the screw.

[0009] Furthermore, there are two slide grooves, which are symmetrically opened on the upper part of the two side walls of the wheel frame. The two ends of the linkage plate pass through the slide grooves, and the limiting platform is installed in the middle of the bottom end of the linkage plate.

[0010] Furthermore, there are two linkage rods, which are symmetrically installed on both sides of the bottom end of the pressure plate, and the pressure plate is connected to the bottom end of the linkage rods.

[0011] Furthermore, the hexagonal bolt penetrates the side wall of the wheel frame and the center of the nylon wheel body, and the outer center of the nylon wheel body has an annular groove.

[0012] Furthermore, the hexagonal head on the hexagonal bolt has the same external dimensions as the hexagonal nut.

[0013] Furthermore, a hook is welded to the center of the top of the wheel frame to connect with the external object to be lifted.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This invention utilizes a linkage limiting assembly consisting of a cross-screw sleeve, a screw, a limiting platform, a sliding groove, a linkage plate, a linkage rod, and a pressure plate, installed on the wheel frame. This assembly allows the screw to extend from the cross-screw sleeve during lifting operations. The extension of the screw causes the linkage plate and linkage rod to move downwards, pressing the pressure plate against the hexagonal bolts and nuts used to secure the nylon wheel. This tightening and limiting of the hexagonal bolts and nuts reduces the risk of them loosening and falling off, thus preventing the nylon wheel from detaching due to loosening or falling off. This significantly improves the safety of the nylon wheel during lifting operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the anti-detachment structure of a nylon pulley according to the present invention;

[0018] Figure 2 This is a front sectional view of a nylon pulley anti-slip structure described in this utility model.

[0019] The annotations in the attached figures are explained as follows:

[0020] 1. Linkage limit assembly; 101. Cross screw sleeve; 102. Screw; 103. Limiting platform; 104. Slide groove; 105. Linkage plate; 106. Linkage rod; 107. Pressure plate; 2. Hex bolt; 3. Hex nut; 4. Nylon wheel body; 5. Wheel frame; 6. Hook. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] like Figures 1-2 As shown, a nylon pulley anti-detachment structure in this embodiment includes a wheel frame 5, a nylon wheel body 4 disposed on the lower side of the wheel frame 5, a hexagonal bolt 2 installed between the nylon wheel body 4 and the wheel frame 5, a hexagonal nut 3 installed on the free end of the hexagonal bolt 2, and a linkage limiting assembly 1 installed on the upper side of the wheel frame 5. The linkage limiting assembly 1 includes a cross-threaded sleeve 101, a screw 102, a limiting platform 103, a sliding groove 104, a linkage plate 105, a linkage rod 106, and a pressure plate 107. Before lifting an object with the help of the nylon wheel body 4, the cross-threaded sleeve 101 can be used to prevent the object from slipping off. During the rotation process, the screw 102 extends out of the cross-screw sleeve 101. After the screw 102 extends out of the cross-screw sleeve 101, it will drive the linkage plate 105 and the linkage rod 106 to move down. After the linkage rod 106 moves down, it will press the pressure plate 107 onto the hexagonal bolt 2 and hexagonal nut 3 used to fix the nylon wheel body 4, thereby achieving the clamping and limiting of the hexagonal bolt 2 and hexagonal nut 3, reducing the risk of the hexagonal bolt 2 and hexagonal nut 3 loosening and falling off, and thus preventing the nylon wheel body 4 from falling off due to the loosening and falling off of the hexagonal bolt 2 and hexagonal nut 3.

[0023] like Figures 1-2 As shown, in this embodiment, the cross-screw sleeve 101 is rotatably installed in the middle of the top end of the wheel frame 5. The screw 102 is connected to the bottom end of the cross-screw sleeve 101, and the linkage plate 105 is installed at the bottom end of the screw 102. The cross-screw sleeve 101 consists of a sleeve and four levers installed in a cross shape on the outside of the sleeve. When the cross-screw sleeve 101 rotates relative to the wheel frame 5, the screw 102 will extend out of the cross-screw sleeve 101 under the action of threaded transmission. There are two sliding grooves 104, which are symmetrically opened on the upper part of the two side walls of the wheel frame 5. The two ends of the linkage plate 105 pass through the sliding grooves 104. The limiting platform 103 is installed on the linkage plate 105. At the bottom center of 05, the slide groove 104 is mainly used to guide the up and down movement of the linkage plate 105 to ensure the stable up and down movement of the linkage plate 105. There are two linkage rods 106, which are symmetrically installed on both sides of the bottom end of the pressure plate 107. The pressure plate 107 is connected to the bottom end of the linkage rod 106. When the linkage rod 106 moves with the linkage plate 105, it will press the pressure plate 107 onto the hexagonal nut 3 and the hexagonal bolt 2 at the same time, so as to realize the clamping limit of the hexagonal bolt 2 and the hexagonal nut 3, prevent the hexagonal bolt 2 and the hexagonal nut 3 from loosening, and thus avoid the nylon wheel 4 from loosening and falling off during the lifting process.

[0024] like Figures 1-2As shown, in this embodiment, the hexagonal bolt 2 penetrates the side wall of the wheel frame 5 and the center of the nylon wheel body 4. The outer center of the nylon wheel body 4 has an annular groove. The nylon wheel body 4 can not only facilitate the convenient pulling of the object by the lifting rope, but also reduce the friction of the rope during the pulling process. The hexagonal head on the hexagonal bolt 2 has the same outer dimensions as the hexagonal nut 3. The hexagonal bolt 2 and the hexagonal nut 3 are mainly used to realize the reliable installation of the nylon wheel body 4 on the wheel frame 5. A hook 6 connected to the external object to be lifted is also welded to the center of the top of the wheel frame 5.

[0025] The specific implementation process of this embodiment is as follows: When lifting an object, first connect the hook 6 to the object to be lifted, and then pass the external lifting rope through the nylon wheel 4. This allows the anti-detachment structure and the nylon wheel 4 to be put into use. During use, the screw 102 extends out of the cross-screw sleeve 101 by rotating the cross-screw sleeve 101. After the screw 102 extends out of the cross-screw sleeve 101, it will drive the linkage plate 105 and the linkage rod 106 to move down. After the linkage rod 106 moves down, it will press the pressure plate 107 onto the hexagonal bolt 2 and hexagonal nut 3 used to fix the nylon wheel 4, thereby tightening and limiting the hexagonal bolt 2 and hexagonal nut 3, reducing the risk of the hexagonal bolt 2 and hexagonal nut 3 loosening and falling off. This prevents the nylon wheel 4 from falling off due to the loosening and falling off of the hexagonal bolt 2 and hexagonal nut 3, making the nylon wheel 4 safer during lifting.

[0026] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A nylon pulley anti-slip structure, characterized in that: The utility model provides a wheel frame (5), which is internally provided with a nylon wheel body (4) on the lower side, a hexagonal bolt (2) is installed between the wheel frame (5) and the nylon wheel body (4), a hexagonal nut (3) is installed on the free end of the hexagonal bolt (2), a linkage limiting assembly (1) is installed on the upper side of the wheel frame (5), and the linkage limiting assembly (1) comprises a cross screw sleeve (101), a screw rod (102), a limiting table (103), a sliding groove (104), a linkage plate (105), a linkage rod (106) and a pressing plate (107).

2. The nylon pulley anti-off structure according to claim 1, characterized in that: The cross screw sleeve (101) is rotatably installed in the middle of the top end of the wheel frame (5), the screw rod (102) is connected to the bottom end of the cross screw sleeve (101), and the linkage plate (105) is installed at the bottom end of the screw rod (102).

3. The anti-disengagement structure of a nylon pulley according to claim 2, characterized in that: The sliding groove (104) has two, two sliding grooves (104) are symmetrically arranged on the upper sides of the two side walls of the wheel frame (5), the linkage plate (105) penetrates through the sliding grooves (104) at both ends, and the limiting table (103) is installed at the middle of the bottom end of the linkage plate (105).

4. The anti-disengagement structure of a nylon pulley according to claim 3, characterized in that: The linkage rod (106) has two, two linkage rods (106) are symmetrically installed at the bottom end of the pressing plate (107), and the pressing plate (107) is connected to the bottom end of the linkage rod (106).

5. The nylon pulley anti-disengagement structure of claim 1, wherein: The hexagonal bolt (2) penetrates through the side wall of the wheel frame (5) and the central position of the nylon wheel body (4), and the nylon wheel body (4) is externally provided with a ring groove in the middle part.

6. The nylon pulley anti-disengagement structure according to claim 1, characterized in that: The hexagonal head of the hexagonal bolt (2) has the same size as the hexagonal nut (3).

7. The anti-disengagement structure for a nylon pulley as claimed in claim 1, wherein: The top end of the wheel frame (5) is further welded with a lifting hook (6) connected to an external object to be lifted.

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