Sleeve string with expansion structure
Through the casing column with a tightening structure, the slider is driven to gradually expand and tighten the plastic pipe, which solves the problem of cumbersome operation of existing equipment and damage to the plastic pipe, and achieves simple and reliable plastic pipe expansion and tightening.
Patent Information
- Application Number
- CN202422007639.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-19
AI Technical Summary
The existing plastic pipe processing equipment is cumbersome to operate and is prone to damage to the plastic pipe.
A casing column with an expansion and tightening structure is adopted, including a hollow cylindrical casing column, a lifting rod and a driver. A number of sets of expansion and tightening components are distributed on the outer wall. Each set of components is composed of a slider and a slide. The slider is driven to gradually expand and tighten the plastic tube.
It realizes simple and reliable plastic pipe swelling and tightening, avoiding damage to the plastic pipe.
Smart Images
Figure CN223131403U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe processing equipment, and particularly relates to a casing string with a tightening structure.
Background Art
[0002] Plastic pipes are formed by connecting multiple plastic pipe monomers. One end of a plastic pipe monomer is a socket section, and the other end is a spigot section. The socket section of one plastic pipe monomer is inserted into the spigot section of another plastic pipe monomer, and several plastic pipe monomers are connected into a plastic pipe in this way.
[0003] When processing plastic pipes, it is necessary to clamp the plastic pipes in order to process the spigot section and socket section at both ends of the plastic pipes. Most of the currently used equipment for clamping plastic pipes is cumbersome to operate and is prone to damaging the plastic pipes.
Content of the Utility Model
[0004] To solve the above problems, the purpose of the utility model is to provide a casing string with a tightening structure that can conveniently and reliably tighten plastic pipes without damaging the plastic pipes.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a casing string with a tightening structure, including a hollow cylindrical casing string. A telescopic rod is arranged inside the casing string, and a driver for driving the telescopic rod to move up and down is arranged outside the casing string. On the outer wall of the casing string, multiple groups of tightening components are arranged in sequence from top to bottom. Each group of tightening components includes a plurality of tightening small parts, and the plurality of tightening small parts are evenly distributed along the circumferential direction of the casing string. Each tightening small part includes a slideway and a slider arranged in the slideway. The inner end face of the slider is an inclined surface that gradually inclines inward from bottom to top, and the outer end of the slider is an arc surface that matches the inner wall of the pipe fitting. At the position corresponding to each group of tightening components on the telescopic rod, a cone body is respectively arranged, and the inclined surface of the slider is attached to the surface of the cone body.
[0006] The casing string with a tightening structure in the utility model is further arranged as: the multiple groups of tightening components are distributed at the top, bottom, and middle of the casing string.
[0007] The casing string with a tightening structure in the utility model is further arranged as: each group of tightening components includes four tightening small parts, and the four tightening small parts are evenly distributed along the circumferential direction of the casing string.
[0008] Compared with the prior art, the utility model has the following beneficial effects: the above-mentioned casing string with a tightening structure adopts an in - out telescopic tightening structure, and the operation can be completed only through one telescopic rod. The whole structure is convenient to use, can reliably tighten plastic pipes, and will not damage the plastic pipes.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 is a schematic structural view of the present utility model.
[0010] Figure 2 is a schematic top view structural view of the present utility model.
[0011] In the figure: 1, casing string; 2, telescopic rod; 3, slideway; 4, slider; 5, inclined surface; 6, arc surface; 7, cone; 8, pipe fitting.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0012] The following further describes in detail a casing string with a tightening structure according to the present utility model through specific embodiments.
[0013] As shown in Figure 1 and Figure 2 , a casing string with a tightening structure includes a hollow cylindrical casing string 1. A telescopic rod 2 is arranged inside the casing string 1, and a driver (not shown in the figure) for driving the telescopic rod 2 to move up and down is arranged outside the casing string 1. On the outer wall of the casing string 1, multiple groups of tightening components are arranged in a row from top to bottom, and the multiple groups of tightening components are distributed at the top, bottom, and middle of the casing string 1. Each group of tightening components includes a plurality of tightening small parts, and the plurality of tightening small parts are evenly distributed along the circumferential direction of the casing string 1. Each tightening small part includes a slideway 3 and a slider 4 arranged in the slideway 3. The inner end surface of the slider 4 is an inclined surface 5 that gradually inclines inward from bottom to top, and the outer end of the slider 4 is an arc surface 6 that cooperates with the inner wall of the pipe fitting. At the position corresponding to each group of tightening components on the telescopic rod 2, a cone 7 is respectively arranged, and the inclined surface 5 of the slider 4 is in contact with the surface of the cone 7.
[0014] In this embodiment, each group of tightening components includes four tightening small parts, and the four tightening small parts are evenly distributed along the circumferential direction of the casing string 1. The number of tightening small parts is not specifically limited in the present utility model, and all belong to the protection scope of the present utility model.
[0015] The working principle of the present utility model is as follows: During operation, the pipe fitting 8 is sleeved on the casing string 1, and then the driver drives the telescopic rod 2 to move upward. Through the cooperation of the cone 7 on the telescopic rod 2 and the inclined surface 5 of the slider 4, the slider 4 in each tightening small part is driven to gradually slide outward along the slideway 3 until it abuts against the inner wall of the pipe fitting 8, thereby tightening the pipe fitting 8 on the casing string 1. The whole structure is convenient to use, can reliably tighten the plastic pipe, and will not cause damage to the plastic pipe.
[0016] The above embodiments are only illustrative of the principles and effects of the present invention and some of the applied embodiments, rather than limiting the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the inventive concept of the present utility model, several modifications and improvements can be made, and these all fall within the protection scope of the present utility model.
Claims
1. A casing string with a tensioning structure, comprising a hollow cylindrical casing string, characterized in that: A telescopic rod is arranged inside the casing string, and a driver for driving the telescopic rod to move up and down is arranged outside the casing string. On the outer wall of the casing string, multiple sets of expansion components are arranged in sequence from top to bottom. Each set of expansion components includes a plurality of expansion small parts, and the plurality of expansion small parts are evenly distributed along the circumferential direction of the casing string. Each expansion small part includes a slideway and a slider arranged in the slideway. The inner end face of the slider is an inclined surface that gradually inclines inwards from bottom to top, and the outer end of the slider is an arc surface that matches the inner wall of the pipe fitting. At the positions corresponding to each set of expansion components on the telescopic rod, cone bodies are respectively arranged, and the inclined surface of the slider is attached to the surface of the cone body.
2. The casing string with a tensioning structure according to claim 1, wherein: The multiple sets of expansion components are distributed at the top, bottom, and middle of the casing string.
3. A casing string with a tensioning structure as described in claim 1 or 2, characterized in that: Each set of expansion components includes four expansion small parts, and the four expansion small parts are evenly distributed along the circumferential direction of the casing string.