Round button lifting appliance with self-locking function

Abstract

The invention provides a round button lifting appliance with a self-locking function, which comprises an upper end shackle and a lower end shackle, the sleeves comprise the left sleeve and the right sleeve which are symmetrical, the upper ends of the left sleeve and the right sleeve are hinged to the upper end shackle, and the left sleeve and the right sleeve can clamp the head of the anchor drill rod after being buckled. In the hoisting process, the round button hoisting point is uniformly stressed, and the hoisting process is safe and reliable.

Description

Technical Field

[0001] The invention belongs to the technical field of slings, and in particular relates to a round button sling with a self-locking function. Background Art

[0002] After a certain type of pavement is laid, a large number of anchors are needed to retain the pavement. However, the workload of extracting the anchors when the pavement is withdrawn is heavy. Since the end of the anchor has a round head and there are no special tools, the withdrawal time of the pavement is seriously affected.

[0003] For some anchors with round button anchor heads, the existing anchor extraction schemes mostly use a crowbar, or connect them by wrapping a rope around the anchor head, and then use a lifting tool to lift the rope. The existing technical scheme uses a crowbar to pry the anchors too slowly, while the rope is connected by wrapping the rope around the lifting point, and then the rope is lifted by a lifting tool. The operation process is relatively complicated, and there is a risk of rope breakage. Summary of the invention

[0004] In view of the problems existing in the prior art, the present application proposes a round button sling with a self-locking function, comprising:

[0005] Upper shackle, the upper shackle can be connected to the lifting rope;

[0006] The sleeve comprises a symmetrical left sleeve and a right sleeve, the upper ends of the left sleeve and the right sleeve are hinged on the upper end shackle, and the left sleeve and the right sleeve can clamp the anchor drill head after being buckled.

[0007] Furthermore, a semicircular hole is respectively provided at the bottom of the left sleeve and the right sleeve, and the size of the circular hole formed by the two semicircular holes being buckled together is larger than the size of the anchor rod and smaller than the size of the anchor rod head.

[0008] Furthermore, a snap ring is disposed on the sleeve outer shell, the size of the snap ring is adapted to the size of the sleeve, and the snap ring can move along the axial direction of the sleeve when the left sleeve and the right sleeve are buckled.

[0009] Furthermore, the lower edges of the left sleeve and the right sleeve are turned outward to form a skirt, and the size of the skirt is larger than the size of the clamping ring.

[0010] The round button sling with self-locking function provided by the present invention has the following beneficial effects compared with the prior art:

[0011] During the lifting process of the present invention, the round button lifting point is evenly stressed, the clamping ring on the lifting device can prevent the lifting device from opening during lifting, and the lifting process is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention (sleeve opened state);

[0013] Figure 2 It is a schematic diagram of the structure of the present invention (sleeve buckled state);

[0014] Figure 3 It is a schematic diagram of the working state of the present invention.

[0015] Serial numbers and names of the attached drawings: 1. upper end shackle, 2. snap ring, 3. sleeve. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Combination Figure 1 and Figure 2 The round button sling with self-locking function proposed in this application is composed of an upper shackle (lifting ring), left and right sleeves and a clamping ring at the bottom. The upper shackle can be connected to the lifting rope; a semicircular hole is respectively opened at the bottom of the left sleeve and the right sleeve. The size of the circular hole formed by the two semicircular holes buckled together is larger than the size of the anchor rod and smaller than the size of the anchor rod head, and is used to clamp the anchor rod head or other circular lifting points.

[0018] The sleeve outer sleeve is provided with a snap ring, the size of the snap ring is adapted to the size of the sleeve, and the snap ring can move along the axial direction of the sleeve when the left sleeve and the right sleeve are buckled. The lower edges of the left sleeve and the right sleeve are turned outward to form a skirt, and the size of the skirt is larger than the size of the snap ring to prevent the snap ring from slipping off.

[0019] During hoisting, the round clamp on the sling falls to the bottom of the sling under the action of its own weight, and the clamp can prevent the sling from opening during hoisting. During the hoisting process, the round button lifting point is evenly stressed, and the hoisting process is safe and reliable.

[0020] like Figure 3 As shown, the working process of this application is as follows:

[0021] 1. During hoisting, the left and right sleeves at the bottom of the sling are opened to clamp the circular lifting point. The circular clamp on the sling falls to the bottom of the sling under the action of its own weight;

[0022] 2. Lifting sling.

[0023] In summary, the above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereto. All equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification are within the scope covered by the patent of the present invention.

Claims

1. A round button sling with self-locking function, characterized in that: include: Upper shackle, the upper shackle can be connected to the lifting rope; The sleeve comprises a symmetrical left sleeve and a right sleeve, the upper ends of the left sleeve and the right sleeve are hinged on the upper end shackle, and the left sleeve and the right sleeve can clamp the anchor drill head after being buckled.

2. The round button hanger according to claim 1, characterized in that: A semicircular hole is respectively formed at the bottom of the left sleeve and the bottom of the right sleeve. The size of the circular hole formed by the two semicircular holes being buckled together is larger than the size of the anchor rod and smaller than the size of the anchor rod head.

3. The round button hanger according to claim 1, characterized in that: The sleeve outer shell is provided with a snap ring, the size of the snap ring is adapted to the size of the sleeve, and the snap ring can move along the axial direction of the sleeve when the left sleeve and the right sleeve are buckled.

4. The round button hanger according to claim 3, characterized in that: The lower edges of the left sleeve and the right sleeve are turned outward to form skirts, and the size of the skirts is larger than the size of the clamping ring.

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