Single-wheel hoisting tackle

Abstract

The utility model discloses a single-wheel hoisting tackle, which relates to the technical field of hoisting tackles and comprises a mounting plate and a limiting component, a pulley is mounted in the middle of the inner side of the mounting plate through a rotating shaft, and the limiting component used for preventing a rope from quickly sliding backwards and falling off is arranged on the side edge of the inner side of the mounting plate. And the limiting assembly comprises a mounting column, a mounting sleeve, a limiting plate, a supporting plate and an elastic rope, the mounting sleeve is arranged outside the mounting column, the end of the mounting sleeve is connected with the limiting plate, and the supporting plate is mounted on the outer surface of the limiting plate. According to the single-wheel hoisting tackle, the limiting plates are movably mounted outside the mounting columns through the mounting sleeves, the two limiting plates form an inverted-circular-truncated-cone-shaped space, a rope bypasses the pulleys and penetrates through the inner sides of the limiting plates, and when the rope slips back quickly, the small-caliber ends of the limiting plates are clamped outside the rope along with back sliding of the rope, so that the rope is prevented from falling off. And the functions of locking and reducing the speed of the rope which slips out of the hand and a heavy object which is moved by the tackle are achieved, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting pulleys, in particular to a single-wheel lifting pulley. Background Art

[0002] Single-wheel hoisting blocks can repeatedly change the direction of the traction cable between the hoisting block and the tackle assembly, and can lift or move heavy objects. Blocks composed of a combination of pulleys are widely used in construction and installation operations in conjunction with winches, masts, or other lifting machinery. Hoisting blocks are a supporting product for hoists and winches used to lift small or medium-sized equipment or objects.

[0003] However, when the rope used in conjunction with the existing single-wheel lifting pulley falls out of the hands, the pulley is inconvenient to carry out emergency treatment of the rope, and the safety is not high.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a single-wheel lifting pulley is provided. Utility Model Content

[0005] The purpose of the present utility model is to provide a single-wheel lifting tackle to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a single-wheel lifting pulley, comprising a mounting plate and a limiting assembly, a pulley is installed on the middle part of the inner side of the mounting plate through a rotating shaft, the limiting assembly for preventing the rope from sliding back and falling quickly is arranged on the side of the inner side of the mounting plate, and the limiting assembly includes a mounting column, a mounting sleeve, a limiting plate, a support plate and an elastic rope, a mounting sleeve is provided on the outside of the mounting column, and the end of the mounting sleeve is connected to the limiting plate, the outer surface of the limiting plate is installed with a support plate, and an elastic rope is provided above the support plate.

[0007] Furthermore, two limiting plates are symmetrically arranged about the center line of the mounting column, and the limiting plates are sleeve-connected with the elastic rope.

[0008] Furthermore, a mounting shaft is provided at the upper end of the inner side of the mounting plate, and a connecting rod is provided at the upper end of the middle portion of the mounting shaft.

[0009] Furthermore, a hook is installed on the upper end of the connecting rod, and a connecting hole is opened on the surface of the hook.

[0010] Furthermore, the upper end of the mounting plate is provided with an auxiliary component for assisting angle adjustment, and the number of the auxiliary components is provided in two groups.

[0011] Furthermore, the auxiliary component includes an auxiliary plate and an auxiliary hole, and the auxiliary hole is opened on the surface of the auxiliary plate.

[0012] Furthermore, the auxiliary component also includes a connecting rod and a tightening sleeve. The connecting rod is provided inside the auxiliary hole, and the tightening sleeve is threadedly installed on the end of the connecting rod.

[0013] Furthermore, a reinforcement rod is installed on the side of the hook through a rotating shaft, and a screw is installed on the inner side of the reinforcement rod.

[0014] The utility model provides a single-wheel lifting pulley, which has the following beneficial effects:

[0015] 1. The utility model uses an installation sleeve to movably install a limit plate on the outside of the installation column. The two limit plates form an inverted cone-shaped space. The rope passes around the pulley and passes through the inside of the limit plate. When the rope is released and slides back quickly, the small-diameter end of the limit plate is stuck on the outside of the rope as the rope slides back, locking and reducing the speed of the released rope and the weight moved by the pulley, thereby increasing safety. The elastic rope on the outside of the limit plate plays the role of assisting the limit opening, so that the limit plate has corresponding toughness to avoid damage during deceleration.

[0016] 2. The utility model integrates the auxiliary plate and the mounting plate into an integrated structure. The auxiliary hole allows the connecting rod to move and adjust within a certain range. The tightening sleeve is tightened on the end of the connecting rod to squeeze and limit the auxiliary plate, so that the angle of the connecting rod and the mounting plate can be positioned after adjustment. The reinforcement rod rotates after the hook is installed to form a sealed space with the hook, thereby increasing the firmness of the hook installation. The screw fixes the reinforcement rod and the hook end. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a single-wheel lifting pulley of the utility model;

[0018] Figure 2 This is a schematic structural diagram of a limiting component of a single-wheel lifting pulley of the utility model;

[0019] Figure 3 The utility model is a schematic diagram of a reinforcement rod structure of a single-wheel lifting pulley.

[0020] In the figure: 1. Mounting plate; 2. Pulley; 3. Limiting assembly; 301. Mounting column; 302. Mounting sleeve; 303. Limiting plate; 304. Support plate; 305. Elastic rope; 4. Mounting shaft; 5. Connecting rod; 6. Hook; 7. Auxiliary assembly; 701. Auxiliary plate; 702. Auxiliary hole; 703. Connecting rod; 704. Tightening sleeve; 8. Connecting hole; 9. Reinforcement rod; 10. Screw. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] like Figure 1 and Figure 3 As shown, a single-wheel lifting pulley includes a mounting plate 1 and a limiting component 3. A pulley 2 is installed in the middle of the inner side of the mounting plate 1 through a rotating shaft. A mounting shaft 4 is provided at the upper end of the inner side of the mounting plate 1, and a connecting rod 5 is provided at the upper end of the middle part of the mounting shaft 4. A hook 6 is installed at the upper end of the connecting rod 5, and a connecting hole 8 is provided on the surface of the hook 6. The upper end of the mounting plate 1 is provided with an auxiliary component 7 for auxiliary angle adjustment, and the number of auxiliary components 7 is provided in two groups. The auxiliary component 7 includes an auxiliary plate 701 and an auxiliary hole 702, and the surface of the auxiliary plate 701 is provided with an auxiliary hole 702. The auxiliary plate 701 and the mounting plate 1 are an integrated structure, and the auxiliary hole 702 makes the connection The rod 703 is movable and adjusted within a certain range. The auxiliary component 7 also includes a connecting rod 703 and a tightening sleeve 704. The connecting rod 703 is arranged inside the auxiliary hole 702, and the end of the connecting rod 703 is threadedly installed with a tightening sleeve 704. The tightening sleeve 704 is tightened on the end of the connecting rod 703 to squeeze and limit the auxiliary plate 701, so that the angle of the connecting rod 5 and the mounting plate 1 can be positioned after adjustment. A reinforcing rod 9 is installed on the side of the hook 6 through a rotating shaft. The reinforcing rod 9 rotates after the hook 6 is installed to form a sealed space with the hook 6, thereby increasing the firmness of the installation of the hook 6, and a screw 10 is installed on the inner side of the reinforcing rod 9, which fixes the reinforcing rod 9 and the end of the hook 6.

[0023] like Figure 2 As shown, the limiting component 3 for preventing the rope from sliding back and falling off quickly is arranged on the side of the inner side of the mounting plate 1, and the limiting component 3 includes a mounting column 301, a mounting sleeve 302, a limiting plate 303, a supporting plate 304 and an elastic rope 305. The outside of the mounting column 301 is provided with a mounting sleeve 302, and the mounting sleeve 302 is used for the limiting plate 303 to be movably installed on the outside of the mounting column 301, and the end of the mounting sleeve 302 is connected to the limiting plate 303. The two limiting plates 303 form an inverted frustum-shaped space, and the rope passes around the pulley 2 from the inside of the limiting plate 303. When the rope slips out of the hand and slides back quickly, the limiting plate 303 Two positioning plates 303 are symmetrically arranged about the center line of the mounting column 301. One end of the limiting plate 303 with a small diameter is stuck on the outside of the rope as the rope slides backward, which locks and reduces the speed of the rope that has slipped out of the hand and the weight moved by the pulley, thereby increasing safety. The limiting plate 303 and the elastic rope 305 are sleeved and connected. A supporting plate 304 is installed on the outer surface of the limiting plate 303, and an elastic rope 305 is arranged above the supporting plate 304. The elastic rope 305 plays the role of assisting the limiting opening on the outside of the limiting plate 303, so that the limiting plate 303 has corresponding toughness to avoid damage during deceleration.

[0024] In summary, the single-wheel lifting tackle is first Figure 1-Figure 3When the hook 6 is in use, the hook 6 is hung on the boom, and the reinforcing rod 9 is rotated to form a sealed space with the hook 6, and the screw 10 is used to fix the reinforcing rod 9 and the end of the hook 6 to increase the firmness of the installation of the hook 6. Then, the telescopic rod connected to the weight is passed around the outside of the pulley 2 and passed through the inside of the limit plate 303. When the rope is out of hand and slides back quickly, the small-diameter end of the limit plate 303 is stuck on the outside of the rope as the rope slides back, locking and reducing the speed of the rope that has been taken off and the weight moved by the pulley, increasing safety. The elastic rope 305 plays the role of auxiliary limiting opening on the outside of the limit plate 303, so that the limit plate 303 has corresponding toughness to avoid damage when decelerating. When the angle needs to be adjusted and fixed, the tightening sleeve 704 can be tightened on the end of the connecting rod 703 to squeeze the auxiliary plate 701 to limit it, so that the angle of the connecting rod 5 and the mounting plate 1 can be positioned after adjustment.

[0025] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A single-wheel lifting tackle, comprising a mounting plate (1) and a limit assembly (3), characterized in that: A pulley (2) is installed in the middle of the inner side of the mounting plate (1) via a rotating shaft. The limiting assembly (3) for preventing the rope from sliding back and falling off quickly is arranged on the side of the inner side of the mounting plate (1). The limiting assembly (3) includes a mounting column (301), a mounting sleeve (302), a limiting plate (303), a supporting plate (304) and an elastic rope (305). The outer side of the mounting column (301) is provided with a mounting sleeve (302), and the end of the mounting sleeve (302) is connected to the limiting plate (303). The outer surface of the limiting plate (303) is provided with a supporting plate (304), and an elastic rope (305) is provided above the supporting plate (304).

2. A single-wheel lifting tackle according to claim 1, characterized in that: Two limiting plates (303) are symmetrically arranged about the center line of the mounting column (301), and the limiting plates (303) and the elastic rope (305) are sleeve-connected.

3. A single-wheel lifting tackle according to claim 1, characterized in that: The upper end of the inner side of the mounting plate (1) is provided with a mounting shaft (4), and the upper end of the middle portion of the mounting shaft (4) is provided with a connecting rod (5).

4. A single-wheel lifting tackle according to claim 3, characterized in that: A hook (6) is installed on the upper end of the connecting rod (5), and a connecting hole (8) is opened on the surface of the hook (6).

5. The single-wheel lifting tackle according to claim 1, characterized in that: The upper end of the mounting plate (1) is provided with an auxiliary component (7) for assisting angle adjustment, and the number of the auxiliary components (7) is provided in two groups.

6. A single-wheel lifting tackle according to claim 5, characterized in that: The auxiliary component (7) comprises an auxiliary plate (701) and an auxiliary hole (702), and the auxiliary hole (702) is provided on the surface of the auxiliary plate (701).

7. A single-wheel lifting tackle according to claim 6, characterized in that: The auxiliary component (7) further comprises a connecting rod (703) and a tightening sleeve (704); the connecting rod (703) is provided inside the auxiliary hole (702), and the tightening sleeve (704) is threadedly mounted on the end of the connecting rod (703).

8. The single-wheel lifting tackle according to claim 4, characterized in that: A reinforcing rod (9) is installed on the side of the hook (6) via a rotating shaft, and a screw rod (10) is installed on the inner side of the reinforcing rod (9).

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