An ultra-low clearance automatic detachable pulley hook assembly

Abstract

The utility model relates to an ultra-low clearance automatic detachable pulley hook group in the technical field of crane hooks, comprising a common shaft, a hook plate is sleeved on the middle part of the common shaft body, and pulley pieces that can rotate relative to the hook plate are sleeved on the positions of the common shaft body located on both sides of the hook plate; a counterweight is provided on the upper end of the hook plate to facilitate the rotation of the hook plate so that the hook tip is located below the hook body; the utility model integrates components such as the hook plate and the pulley piece onto a common shaft and cleverly arranges the counterweight, so that the overall size of the hook group is smaller, the clearance is lower, and the upper limit of the lifting height is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of crane hooks, in particular to an ultra-low clearance automatic detachable pulley hook group. Background Art

[0002] Traditional pulley hook assembly such as Figure 1 As described above, the pulley shaft is located above the rotation center of the hook body, resulting in a large clearance size of the pulley hook group, which limits the lifting height. This poses a significant challenge to the prior art in certain lifting occasions, especially when objects need to be lifted in a narrow space.

[0003] In order to meet the requirements of automatic detachment at the site and the limited clearance size of the hook, we designed an ultra-low clearance automatic detachment pulley hook group. Utility Model Content

[0004] In order to overcome the deficiencies in the background technology, the utility model discloses an ultra-low clearance automatic detachable pulley hook assembly.

[0005] In order to achieve the above utility model purpose, the utility model adopts the following technical solutions:

[0006] An ultra-low clearance automatic detachable pulley hook group comprises a common shaft, a hook plate is sleeved on the middle part of the common shaft body, and pulley pieces that can rotate relative to the hook plate are sleeved on the positions of the common shaft body located on both sides of the hook plate; a counterweight is provided on the upper end of the hook plate to facilitate the rotation of the hook plate so that the hook tip is located below the hook body.

[0007] Preferably, the upper end of the hook plate is biased towards the hook tip side.

[0008] Preferably, the counterweight is provided on both plate surfaces of the upper end of the hook plate.

[0009] Preferably, both ends of the common shaft are provided with side plates, and the hook plate and the pulley plate are rotatably sleeved on the common shaft body.

[0010] Preferably, a downward extending piece is provided at the bottom of the side plate at a position corresponding to the hook tip of the hook plate.

[0011] Preferably, an inwardly bent portion is provided at the bottom of the side panel.

[0012] Preferably, the inner surface of the side panel is provided with a pulley cover corresponding to the pulley piece.

[0013] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0014] By integrating the hook plate and pulleys onto a common shaft and cleverly arranging the counterweight, the overall size of the hook group is smaller, the clearance is lower, and the upper limit of the lifting height is increased. In addition, the reasonable design of the side panels can provide more stable support, and also includes pulley covers, which can effectively prevent dust and wear on the pulleys. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the prior art;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model in an idle state;

[0017] Figure 3 It is a schematic diagram of the structure of the utility model in the use posture;

[0018] Figure 4 It is a right side view of the utility model in the use posture;

[0019] Figure 5 It is a cross-sectional view of the utility model in the use posture.

[0020] In the figure: 1, common shaft; 2, hook plate; 3, pulley; 4, counterweight; 5, side plate; 51, bending part; 6, extension piece; 7, pulley cover. DETAILED DESCRIPTION

[0021] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. to indicate directions or positional relationships, they only correspond to the drawings of the present application, in order to facilitate the description of the present invention; it should be understood that if there are terms such as "end", "side", "end part", "lateral", "lateral", "transverse", "longitudinal", etc. to indicate directions or positional relationships, they only correspond to the length and width of the corresponding parts, that is, "end part" indicates the head and tail areas in the length direction of the corresponding part, and "side part" indicates the head and tail areas in the width direction of the corresponding part; this is for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction.

[0022] Embodiment 1, in combination with the attached Figure 2-5, an ultra-low clearance automatic detachable pulley hook group, comprising a common shaft 1, a hook plate 2 is sleeved in the middle of the common shaft 1, and pulleys 3 that can rotate relative to the hook plate 2 are sleeved on both sides of the common shaft 1; specifically, at least one of the hook plate 2 and the pulley 3 is rotatably sleeved on the common shaft 1. Furthermore, at least one of the hook plate 2 and the pulley 3 is rotatably connected to the common shaft 1 through a bearing. That is, the rotation center axes of the hook plate 2 and the pulley 3 are located on the same horizontal line, so that the clearance size of the pulley hook group is smaller than that of the prior art, thereby increasing the upper limit height of the lifting.

[0023] A counterweight 4 is provided at the upper end of the hook plate 2 to facilitate the rotation of the hook plate 2 so that the hook tip is located below the hook body; specifically, the hook plate 2 has an upper end portion biased toward the hook tip at a position above the common axis 1; that is, the upper end portion of the hook plate 2 is biased toward the hook tip relative to the straight line where the hook body is located, that is, the upper end portion of the hook plate 2 and the hook tip are located on the same side of the straight line where the hook body is located.

[0024] When it is necessary to detach, the presence of the counterweight 4 can cause the hook plate 2 to rotate, so that the hook head of the hook plate 2 rotates around the common axis 1, thereby realizing the function of automatic detachment.

[0025] According to needs, in order to ensure the balance of the hook plate 2, counterweights 4 are provided on both plate surfaces of the upper end of the hook plate 2.

[0026] Furthermore, in order to increase the dustproof function of the pulley 3, a pulley cover 7 corresponding to the pulley 3 is provided on the inner surface of the side panel 5; specifically, the pulley cover 7 is located at the periphery of the corresponding pulley 3, and an opening for the steel wire rope to enter is provided at the top thereof.

[0027] Embodiment 2, combined with the attached Figure 2-5 , an ultra-low clearance automatic detachable pulley hook group, based on the first embodiment, in order to improve the overall stability; side plates 5 are provided at both ends of the common shaft 1, and the hook plate 2 and the pulley piece 3 are rotatably sleeved on the shaft body of the common shaft 1.

[0028] To improve the safety of hanging, a downward extension piece 6 is provided at the bottom of the side plate 5 corresponding to the hook tip of the hook plate 2; specifically, when the hook body of the hook plate 2 is in a vertical position, the extension piece 6 is correspondingly located directly above or on the outer side of the hook tip.

[0029] As required, when an inwardly bent portion 51 is provided at the bottom of the side plate 5 , the extending member 6 is provided with two lower plate surfaces of the bent portion 51 at the bottom of the side plate 5 .

[0030] Its working principle is: the hook plate and the pulley are respectively connected to the common shaft body through bearings, and the central axis of rotation is located in the same plane, forming a compact overall structure. At the same time, the counterweight enables the hook plate to automatically rotate around the common shaft to realize the unhooking function. When unhooking is required, the hook plate automatically rotates under the weight of the counterweight to slide the hook head out from under the hook body to realize automatic unhooking. In addition, the reasonable design of the side plate can provide more stable support, and also includes a pulley cover, which can effectively prevent dust and wear of the pulley.

[0031] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. An ultra-low clearance automatic detachable pulley hook assembly, characterized in that: The invention comprises a common shaft (1), wherein a hook plate (2) is sleeved on the middle part of the common shaft (1), and pulleys (3) which can rotate relative to the hook plate (2) are sleeved on the positions of the common shaft (1) on both sides of the hook plate (2); and a counterweight (4) is provided on the upper end of the hook plate (2) so as to facilitate the rotation of the hook plate (2) so that the hook tip is located below the hook body.

2. The ultra-low clearance automatic detachable pulley hook assembly according to claim 1, characterized in that: The upper end of the hook plate (2) is biased towards the hook tip side.

3. The ultra-low clearance automatic detachable pulley hook assembly according to claim 2, characterized in that: The counterweight (4) is provided on both plate surfaces of the upper end of the hook plate (2).

4. The ultra-low clearance automatic detachable pulley hook assembly according to claim 1, characterized in that: Side plates (5) are provided at both ends of the common shaft (1), and the hook plate (2) and the pulley plate (3) are rotatably sleeved on the shaft body of the common shaft (1).

5. The ultra-low clearance automatic detachable pulley hook assembly according to claim 4, characterized in that: A downward extending piece (6) is provided at the bottom of the side plate (5) at a position corresponding to the hook tip of the hook plate (2).

6. The ultra-low clearance automatic detachable pulley hook assembly according to claim 4, characterized in that: The bottom of the side plate (5) is provided with an inwardly bent portion (51).

7. The ultra-low clearance automatic detachable pulley hook assembly according to claim 4, characterized in that: The inner surface of the side plate (5) is provided with a pulley cover (7) corresponding to the pulley sheet (3).

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