Internal expansion anti-unhooking device applied to small-diameter pipeline in narrow space

Abstract

The utility model discloses an internal expansion anti-unhooking device applied to a small-caliber pipeline in a narrow space, and relates to the technical field of pipeline engineering installation and maintenance, in particular to the internal expansion anti-unhooking device applied to the small-caliber pipeline in the narrow space, which comprises a high-strength screw rod, and a flat washer is sleeved in the middle of the surface of the high-strength screw rod. The surface of the high-strength screw is in threaded connection with a high-strength nut, and the bottom end of the high-strength screw is fixedly connected with an expansion block. The high-strength nut is rotated to drive the high-strength screw to move, the expansion sleeve is pushed under the action of the expansion block, the expansion sleeve expands outwards to make contact with the inner wall of the pipeline and abut against the inner wall of the pipeline, and therefore the pipeline is fixed through friction force, the equipment is hoisted through the hoisting hook and the hoisting rope, and hoisting of the pipeline is achieved. The problems that a pipeline in a narrow space is unstable in fixation, inconvenient to operate and large in occupied space are solved, the functions of rapid installation, stable hoisting and falling prevention of the pipeline are achieved, and construction risks are reduced.

Description

Technical Field

[0001] This utility model relates to the field of pipeline engineering installation and maintenance technology, specifically a device for preventing unhooking of small-diameter pipes in confined spaces due to internal expansion. Background Technology

[0002] The drawbacks of traditional pipe bundling methods:

[0003] It is easy to collide with adjacent pipes, which may cause slippage or detachment and potentially lead to safety accidents;

[0004] The fixing point is located on the outer wall of the pipe, which occupies external space and is difficult to apply in confined environments;

[0005] The operation is complicated, disassembly and assembly are inconvenient, which affects work efficiency. Utility Model Content

[0006] The purpose of this utility model is to provide a device for preventing unhooking of small-diameter pipes in confined spaces. By setting high-strength screws, high-strength nuts, expansion blocks and expansion sleeves, it solves the problems of traditional pipe binding methods.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a device for preventing unhooking in small-diameter pipes in confined spaces, comprising a high-strength screw, a flat washer fitted at the middle of the surface of the high-strength screw, a high-strength nut threadedly connected to the surface of the high-strength screw, an expansion block fixedly connected to the bottom end of the high-strength screw, and an expansion sleeve fitted below the flat washer on the surface of the high-strength screw.

[0008] Preferably, a spring washer is engaged between the flat washer and the high-strength nut.

[0009] Preferably, the expansion sleeve has a notch on its surface, and a pipe is fitted onto the surface of the expansion sleeve.

[0010] Preferably, a round steel ring clamp is welded to the top of the high-strength nut.

[0011] Preferably, the surface of the round steel ring clip is fitted with a lifting hook, and a lifting rope is sleeved on the top of the lifting hook.

[0012] This utility model provides a device for preventing disengagement from internal expansion of small-diameter pipes in confined spaces, which has the following beneficial effects:

[0013] In use, a high-strength screw and expansion sleeve are inserted into the pipe. By rotating the high-strength nut, the screw is driven to move. Under the action of the expansion block, the expansion sleeve is pushed outward, causing it to expand and contact the inner wall of the pipe, thus fixing the pipe through friction. The device is then lifted using a lifting hook and rope, enabling the pipe to be hoisted. This solves the problems of unstable pipe fixing, inconvenient operation, and large space occupation in confined spaces. It achieves rapid pipe installation, stable hoisting, and anti-detachment functions, reducing construction risks. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a side view of the structure of the present invention;

[0017] Figure 3 This is a structural disassembly diagram of the expansion sleeve of this utility model.

[0018] The image shows:

[0019] 1. High-strength screw; 2. Flat washer; 3. High-strength nut; 4. Expansion block; 5. Expansion sleeve; 6. Spring washer; 7. Notch; 8. Pipe; 9. Round steel ring clamp; 10. Lifting hook; 11. Lifting rope. Detailed Implementation

[0020] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] like Figure 1, Figure 2 and Figure 3 As shown, this embodiment proposes an anti-unhooking device for small-diameter pipes in confined spaces, including a high-strength screw 1, a flat washer 2 sleeved at the middle of the surface of the high-strength screw 1, a high-strength nut 3 threadedly connected to the surface of the high-strength screw 1, an expansion block 4 fixedly connected to the bottom end of the high-strength screw 1, and an expansion sleeve 5 sleeved below the flat washer 2 on the surface of the high-strength screw 1.

[0023] When in use, the flat washer 2 can abut against the expansion sleeve 5. When the high-strength nut 3 is tightened, the flat washer 2 pushes the expansion sleeve 5, causing it to expand under the action of the expansion block 4 and press tightly against the pipe.

[0024] A spring washer 6 is snapped between the flat washer 2 and the high-strength nut 3. The spring washer 6 prevents the high-strength nut 3 from loosening and keeps it in a tight state, while also distributing pressure and absorbing vibration.

[0025] The expansion sleeve 5 has a notch 7 on its surface, and the expansion sleeve 5 is fitted with a pipe 8. The notch 7 allows the expansion sleeve 5 to expand outward under the push of the expansion block 4, so as to achieve frictional tight contact with the pipe 8 and achieve a fixing effect between them.

[0026] The top of the high-strength nut 3 is welded with a round steel ring clip 9, and a lifting hook 10 is attached to the surface of the round steel ring clip 9. A lifting rope 11 is attached to the top of the lifting hook 10.

[0027] The lifting hook 10 adopts a press-to-unlock design, which facilitates installation and dismantling. The equipment is lifted by using the lifting rope 11 in conjunction with lifting equipment to achieve the lifting effect of the pipeline 8.

[0028] Specifically, this anti-detachment hook device for small-diameter pipes in confined spaces operates as follows: During use, a high-strength screw 1, in conjunction with an expansion sleeve 5, is inserted into the pipe 8. Rotating the high-strength nut 3 drives the screw 1 to move, pushing the expansion sleeve 5 under the action of the expansion block 4. This causes the expansion sleeve 5 to expand outwards and contact the inner wall of the pipe 8, thus securing the pipe 8 through friction. The device is then lifted using a lifting hook 10 and a lifting rope 11, enabling the lifting of the pipe 8. This solves the problems of unstable pipe fixation, inconvenient operation, and large space occupation in confined spaces, achieving rapid pipe installation, stable lifting, and anti-detachment functions, while reducing construction risks.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kind of inside expansion anti-unhooking device applied to small space small-bore pipeline, including high-strength screw rod (1), it is characterized by: A flat washer (2) is fitted in the middle of the surface of the high-strength screw (1), a high-strength nut (3) is threaded onto the surface of the high-strength screw (1), an expansion block (4) is fixedly connected to the bottom end of the high-strength screw (1), and an expansion sleeve (5) is fitted on the surface of the high-strength screw (1) below the flat washer (2).

2. The inside expanding anti-disengaging device for small-caliber pipeline in narrow space according to claim 1, characterized in that: A spring washer (6) is snapped between the flat washer (2) and the high-strength nut (3).

3. The inside expanding unhooking preventing device for small caliber pipeline in narrow space according to claim 1, characterized in that: The expansion sleeve (5) has a notch (7) on its surface and a pipe (8) is fitted onto its surface.

4. The inside expanding unhooking preventing device for small caliber pipeline in narrow space according to claim 1, characterized in that: The top of the high-strength nut (3) is welded with a round steel ring clip (9).

5. The inside expanding unhooking preventing device for small caliber pipeline in narrow space according to claim 4, characterized in that: The surface of the round steel ring clamp (9) is fitted with a lifting hook (10), and the top of the lifting hook (10) is fitted with a lifting rope (11).

Images