CN212581351U

CN212581351U - L-shaped crane arm unhooking prevention device

Info

Publication number: CN212581351U
Application number: CN202021269912.6U
Authority: CN
Inventors: 王学礼; 苏宁; 刘治勃; 刘军营; 张立娟; 陈一鹤
Original assignee: Shaanxi Provincial Expressway Construction Group Co
Current assignee: Shaanxi Provincial Expressway Construction Group Co
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-02-23
Anticipated expiration: 2030-07-02

Abstract

The utility model discloses an L-shaped crane arm unhooking prevention device, which comprises a fixed clamp (1) and an L-shaped steel plate (2); one side of the L-shaped steel plate (2) is fixed on the fixing clamp (1), and the fixing clamp (1) is used for clamping on the crane hook (4), so that the other end of the L-shaped steel plate (2) is blocked at the opening of the crane hook (4). The utility model discloses the device is together fixed through fixation clamp and lifting hook. The whole in-process fixation clamp atress is less, and is "L" shape steel sheet transmission pressure of coming basically, therefore has guaranteed this utility model device and the firm being connected of lifting hook.

Description

L-shaped crane arm unhooking prevention device

Technical Field

The utility model relates to a lifting hook of crane arm, concretely relates to "L" shape crane arm mousing-hook device.

Background

The lifting hook of the crane arm is of a non-closed structure, so that the condition that a lifting object is unhooked can occur in the using process. In windy weather, unstable hook movement, severe lateral deviation of the hoisted object and the like, the probability of the unhooking situation is higher. The construction site is dense in personnel and complex in condition, and because the hoisted object is a large-mass object, once the hoisted object is unhooked on the construction site, the hoisted object can be damaged, and the safety of the personnel on the site can be threatened.

In the traditional hoisting operation process, the hoisting object is generally not additionally fixed, and the operation can be completed only by hanging the hoisting object on a lifting hook. For hoisting objects which need to be fixed additionally, ropes are generally bound on the lifting hooks, and the method is tedious, time-consuming and labor-consuming. And the binding method of each person is different, so the safety of the hoisted object cannot be ensured. And the binding ropes are generally temporarily found on site, which also puts new demands on the ropes. Thus, rope lashing is not a convenient and effective means of attachment.

SUMMERY OF THE UTILITY MODEL

To the problem or the defect that exist among the above-mentioned prior art, the utility model aims at providing an "L" shape crane arm mousing-hook device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an L-shaped crane arm anti-unhooking device comprises a fixing clamp and an L-shaped steel plate; one side of the L-shaped steel plate is fixed on the fixing clamp, and the fixing clamp is used for clamping on the crane hook, so that the other end of the L-shaped steel plate is blocked at the opening of the crane hook.

The utility model discloses further improvement lies in that one side of "L" shape steel sheet is the minor face, and the opposite side is long limit.

The utility model discloses further improvement lies in that one side of "L" shape steel sheet is passed through connecting bolt and is fixed on the fixation clamp.

The utility model discloses a further improvement lies in that, "L" shape steel sheet is laminated mutually through the obtuse angle with the lifting hook.

The utility model discloses a further improvement lies in, and the fixation clamp includes first clamping piece and second clamping piece, and the screw has been seted up to the one end of first clamping piece and second clamping piece to through the axle swing joint who passes the screw, and the junction is provided with the spring, and the other end of first clamping piece and second clamping piece is used for the centre gripping on the crane lifting hook.

The utility model discloses further improvement lies in, and the spring chooses for use "V" shape spring.

Compared with the prior art, the utility model discloses following profitable technological effect has:

1. the utility model discloses the device is together fixed through fixation clamp and lifting hook. The whole in-process fixation clamp atress is less, and is "L" shape steel sheet transmission pressure of coming basically, therefore has guaranteed this utility model device and the firm being connected of lifting hook.

2. The utility model discloses "L" shape steel sheet passes through the obtuse angle with the lifting hook and is connected among the device, therefore the slip-in of article is comparatively easy, and the unhook is comparatively difficult, accords with the application in the actual engineering.

3. The utility model discloses the size is less, and the installation is dismantled swiftly and easily to be handed, and the cost is lower. The fixing clamp is connected with the L-shaped steel plate through bolts, so that later maintenance is facilitated. Therefore, the method is suitable for popularization and application in large area.

To sum up, the utility model discloses simple structure, cost are lower, the result is reliable, and easy to carry out, require not high to the place, have effectively avoided the article unhook phenomenon of hoist and mount in-process, have also alleviateed engineering personnel's the work load and the work degree of difficulty simultaneously, have fine economic benefits and social.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a detail view of the retaining clip components thereof.

Fig. 3 is an engineering application diagram of the present invention.

The reference numerals in the figures denote:

1 is a fixing clamp, 2 is an L-shaped steel plate, 3 is a connecting bolt, 4 is a crane hook, 1-1 is a spring, 1-2 is a shaft, and 1-3 is a screw hole.

Detailed Description

Embodiments of the present invention will be explained and explained in further detail with reference to the drawings and the detailed description.

Referring to fig. 1-3, the utility model provides an "L" shape crane arm mousing-hook device, including fixation clamp 1, "L" shape steel sheet 2 and connecting bolt 3 triplex. Wherein, the fixing clamp 1 is used for fixing the whole device, and a V-shaped spring is arranged in the fixing clamp. Under the condition that the two wings of the L-shaped steel plate 2 are stressed, the angle between the two wings of the L-shaped steel plate 2 can be changed, so that the L-shaped steel plate 2 is closely attached to the lifting hook 4, and the L-shaped steel plate can be restored to the original shape when the stress disappears. The connecting bolt 3 is used for fixing the fixing clamp 1 and the L-shaped steel plate 2 together.

The fixing clamp 1 comprises a first clamping piece and a second clamping piece, wherein one end of the first clamping piece and one end of the second clamping piece are provided with screw holes 1-3 and movably connected through a shaft 1-2 penetrating through the screw holes 1-3, a spring 1-1 is arranged at the connection part, and the other end of the first clamping piece and the other end of the second clamping piece are used for clamping a crane hook 4. And the spring 1-1 is a V-shaped spring.

In the normal use process, the fixation clamp 1 atress is less, and is "L" shape steel sheet 2 transmission pressure of coming basically, therefore has guaranteed this utility model device and lifting hook 4's firm being connected. And simultaneously, the utility model discloses in the device "L" shape steel sheet 2 laminate through the obtuse angle with lifting hook 4 mutually, consequently the slip-in of hoist and mount article is comparatively easy, and the unhook is comparatively difficult, has reached the purpose of this utility model device.

Claims

1. An L-shaped crane arm anti-unhooking device is characterized by comprising a fixing clamp (1) and an L-shaped steel plate (2); one side of the L-shaped steel plate (2) is fixed on the fixing clamp (1), and the fixing clamp (1) is used for clamping on the crane hook (4), so that the other end of the L-shaped steel plate (2) is blocked at the opening of the crane hook (4).

2. The L-shaped crane arm unhooking prevention device as claimed in claim 1, wherein one side of the L-shaped steel plate (2) is a short side, and the other side is a long side.

3. The L-shaped crane arm unhooking prevention device as claimed in claim 1, wherein one side of the L-shaped steel plate (2) is fixed on the fixing clamp (1) through the connecting bolt (3).

4. The L-shaped crane arm unhooking prevention device is characterized in that the L-shaped steel plate (2) is attached to the lifting hook (4) through an obtuse angle.

5. The L-shaped crane arm unhooking prevention device of claim 1, wherein the fixing clamp (1) comprises a first clamping piece and a second clamping piece, one end of the first clamping piece and one end of the second clamping piece are provided with screw holes (1-3) and movably connected through shafts (1-2) penetrating through the screw holes (1-3), a spring (1-1) is arranged at the joint, and the other end of the first clamping piece and the other end of the second clamping piece are used for clamping on a crane hook (4).

6. The L-shaped crane arm unhooking prevention device as claimed in claim 5, wherein the spring (1-1) is a V-shaped spring.