PVC well digging pipe flaring device

By designing a conical positioning seat and a heating cover, the problems of narrow applicability and uneven flaring of existing PVC well pipe flaring devices are solved, achieving applicability to different pipe diameters and uniform flaring, thus improving flaring efficiency and sealing performance.

CN224197323UActive Publication Date: 2026-05-05SICHUAN XINGYI PLASTIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN XINGYI PLASTIC
Filing Date
2025-04-16
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing PVC well pipe flaring devices have a narrow applicable pipe diameter range, uneven flaring, and are prone to pipe deformation.

Method used

It adopts a conical positioning seat and heating cover structure. The conical positioning seat is suitable for positioning PVC well pipes of various sizes, and the heating cover provides uniform heating. Combined with the flaring probe and limiting components, it ensures the uniformity and stability of the flaring.

Benefits of technology

It achieves applicability to different pipe diameters, with uniform flaring and resistance to deformation, thus improving flaring efficiency and sealing performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of well digging pipe flaring, and aims to solve the problems that an existing flaring device is narrow in pipe diameter application range, flaring heating is uneven, and a flaring structure is prone to causing pipe opening deformation. The utility model provides a PVC well digging pipe flaring device. The PVC well digging pipe flaring device comprises a flaring probe, a mounting frame, a conical positioning seat and a heating cover, the conical positioning seat is vertically arranged at the bottom of the mounting frame; the flaring probe is hung at the top of the conical positioning seat; the conical positioning seat is connected with the top of the mounting frame through a first lifting rod; the heating cover is arranged outside the flaring probe in a sleeving manner; the heating cover is provided with an opening through which the conical positioning seat penetrates; according to the PVC well digging pipe flaring device, a flaring pipe section can be evenly heated through the heating cover, flaring efficiency is improved, the PVC well digging pipe flaring device can be suitable for inserting and positioning of PVC well digging pipes of various sizes through the conical positioning base, operation is convenient, and pipe opening deformation cannot be caused.
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Description

Technical Field

[0001] This utility model relates to the field of well drilling pipe flaring technology, and more specifically, to a PVC well drilling pipe flaring device. Background Technology

[0002] The PVC well pipe flaring device is a key piece of equipment used in the production of PVC pipes. It is mainly used to heat and soften the pipe end and expand it into a socket shape to achieve efficient pipe connection. Through precise temperature control and mold forming technology, it ensures the sealing and structural stability of the flared part and is widely used in socket-type pipeline systems such as well pipes and water supply and drainage pipes.

[0003] In existing technologies, one end of the pipe is usually fixed by a positioning post, while the other end is flared using a flaring device. For example, patent CN221112857U discloses a flaring device for PVC pipe production. Specifically, it uses a positioning post to limit the PVC pipe, and then rotates an adjusting head to drive a screw to rotate, which can move a movable seat up or down. The movement of the movable seat, through the cooperation of the waist-shaped groove and the connecting sliding post, can drive two flaring arms to move closer or further away simultaneously, thereby flaring the pipe to a certain diameter as needed. However, using a positioning post to fix the pipe is not suitable for pipes of all sizes. Secondly, since the purpose of flaring is usually to expand the pipe end into a socket shape, a pair of reciprocating flaring arms cannot flare the pipe end simultaneously, and pipe end deformation is likely to occur, resulting in poor sealing of the resulting socket.

[0004] Based on the above description, there is an urgent need for a PVC well pipe flaring device that has a wide range of applications, uniform flaring, and is not easily deformed. Utility Model Content

[0005] The purpose of this utility model is to provide a PVC well pipe flaring device, which aims to solve the technical problems of existing flaring devices having a narrow applicable pipe diameter range, uneven flaring heating, and flaring structure that easily leads to pipe end deformation.

[0006] The embodiments of this utility model are achieved through the following technical solutions:

[0007] A PVC well pipe flaring device includes a flaring probe, a mounting frame, a conical positioning seat, and a heating cover; the conical positioning seat is erected at the bottom of the mounting frame; the flaring probe is suspended at the top of the conical positioning seat; the conical positioning seat is connected to the top of the mounting frame via a first lifting rod; the heating cover is fitted over the flaring probe; the heating cover has an opening for the conical positioning seat to pass through.

[0008] Preferably, the conical positioning seat includes a concave end and an extended end; the concave end extends into the opening of the conical positioning seat; the extended end is connected to the bottom of the mounting frame via a second lifting rod.

[0009] Preferably, the conical positioning seat is fitted with an anti-slip outer sleeve.

[0010] Preferably, the flared probe is inverted conical in shape; the flared probe is screwed to the end of the second lifting rod away from the mounting clamp.

[0011] Preferably, the heating cover is connected to a plurality of first sliders via a connecting plate; the mounting bracket is provided with a first groove along the vertical direction for the first sliders to be inserted.

[0012] Preferably, the device also includes a limiting component; one end of the limiting component is slidably connected to the mounting bracket; the other end of the limiting component extends between the flared probe and the conical positioning seat.

[0013] Preferably, the limiting assembly includes a pair of connecting arms and a pair of clamping arc plates; the clamping arc plates are connected to a movable plate via the connecting arms; the movable plate is slidably connected to the mounting bracket; an opening is provided between the pair of clamping arc plates; the flared probe and the conical positioning seat are disposed opposite to each other at both ends of the opening.

[0014] Preferably, the pair of connecting arms are connected by a memory spring post; the end of the connecting arm away from the clamping arc plate is slidably connected to the movable plate.

[0015] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0016] The PVC well pipe flaring device provided by this utility model can uniformly heat the flaring pipe section through the heating cover, thereby improving the flaring efficiency. The conical positioning seat can be used for the insertion and positioning of PVC well pipes of various sizes. It has a simple structure, is easy to operate, and will not cause deformation of the pipe opening. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a top view of the limiting component in this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the conical positioning seat in this utility model.

[0020] Icons: 1-flared probe, 2-mounting bracket, 3-conical positioning seat, 4-heating cover, 5-first lifting rod, 6-second lifting rod, 7-anti-slip cover, 8-connecting plate, 9-first slider, 10-limiting component, 11-connecting arm, 12-clamping arc plate, 13-moving plate, 14-memory spring column. Detailed Implementation

[0021] The specific implementation method is described below with reference to the accompanying drawings.

[0022] Example 1

[0023] Please see Figures 1 to 3 The present invention provides the following technical solution: a PVC well pipe flaring device, which is suitable for heating and flaring PVC well pipes.

[0024] Specifically, such as Figures 1 to 3 As shown, a PVC well pipe flaring device includes a flaring probe 1, a mounting frame 2, a conical positioning seat 3, and a heating cover 4; the conical positioning seat 3 is erected at the bottom of the mounting frame 2; the flaring probe 1 is suspended at the top of the conical positioning seat 3; the conical positioning seat 3 is connected to the top of the mounting frame 2 through a first lifting rod 5; the heating cover 4 is fitted over the outside of the flaring probe 1; the heating cover 4 has an opening for the conical positioning seat 3 to pass through.

[0025] In this embodiment, during the flaring stage, one end of the PVC well-drilling pipe is pre-inserted into the top of the conical positioning seat 3 for fixation. Since the conical positioning seat 3 has different outer diameters at different heights, it is convenient to fix PVC well-drilling pipes of different diameters, making it widely applicable. After one end of the PVC well-drilling pipe is fixed, the height of the flaring probe 1 is adjusted by raising and lowering the first lifting rod 5, thereby heating and flaring in the heating cover 4. The heating cover 4 is fitted outside the flaring probe 1, so that the PVC well-drilling pipe can be heated comprehensively and evenly while slowly flaring during the process of the flaring probe 1 being inserted into the PVC well-drilling pipe.

[0026] In this embodiment, the heating cover 4 can be heated directly by resistance heating, or hot air can be sent in by a blower to heat and soften the PVC well pipe.

[0027] Specifically, such as Figures 1 to 3 As shown, the conical positioning seat 3 includes a contracted end and an extended end; the contracted end extends into the opening of the conical positioning seat 3; the extended end is connected to the bottom of the mounting frame 2 via the second lifting rod 6.

[0028] In this embodiment, both the first lifting rod 5 and the second lifting rod 6 are electric lifting rods or lifting cylinders; the second lifting rod 6 facilitates the adjustment of the height of the conical positioning seat 3 according to the length of the PVC well pipe.

[0029] In this embodiment, the conical positioning seat 3 is fitted with an anti-slip outer sleeve 7; the anti-slip outer sleeve 7 is made of high-temperature resistant elastic rubber, and multiple anti-slip protrusions are further provided on its exterior.

[0030] Specifically, such as Figure 1 As shown, the flared probe 1 is an inverted cone shape; the flared probe 1 is screwed to the end of the second lifting rod 6 away from the mounting clamp.

[0031] In this embodiment, the bottom of the second lifting rod 6 is provided with a connecting plate and a threaded post in the middle of the connecting plate, and the middle of the flared probe 1 is provided with a threaded hole that matches the threaded post.

[0032] Specifically, such as Figure 1 As shown, the heating cover 4 is connected to a plurality of first sliders 9 via a connecting plate 8; the mounting bracket 2 is provided with a first groove along the vertical direction for the first sliders 9 to be embedded.

[0033] In this embodiment, the heating cover 4 is connected to one end of the second lifting rod 6 via a connecting ring (such as a clamp) or directly welded to avoid affecting its extension and retraction. To further reinforce the heating cover 4, a connecting plate 8 is further provided, and the connecting plate 8 is further connected to the mounting frame 2 by multiple first sliders 9 being embedded in the first sliding groove. The first sliding groove has a pair of groove side plates with limiting grooves parallel to the bottom plate, and the first slider 9 has a limiting block embedded in the limiting groove, so that after the first slider 9 is embedded in the first sliding groove, it will not fall out of the first sliding groove under the limiting of the pair of limiting blocks.

[0034] Specifically, such as Figure 1 As shown, it also includes a limiting component 10; one end of the limiting component 10 is slidably connected to the mounting bracket 2; the other end of the limiting component 10 extends between the flared probe 1 and the conical positioning seat 3. The limiting component 10 includes a pair of connecting arms 11 and a pair of clamping arc plates 12; the clamping arc plates 12 are connected to a movable plate 13 through the connecting arms 11; the movable plate 13 is slidably connected to the mounting bracket 2; an opening is left between the pair of clamping arc plates 12; the flared probe 1 and the conical positioning seat 3 are positioned opposite each other at the two ends of the opening.

[0035] In this embodiment, the movable plate 13 is a strip-shaped plate body, which is adjusted by the third lifting rod; the third lifting rod is installed on the mounting frame 2, and is further connected to the mounting frame 2 by multiple second sliders and multiple second slide grooves on the mounting frame 2. The second slide groove is vertically set at the bottom of the first slide groove, and the specific connection method between the second slider and the second slide groove is the same as that between the first slider; the end of the PVC well pipe away from the conical positioning seat 3 passes through the opening between a pair of clamping arc plates 12, and is limited by a pair of clamping arc plates 12.

[0036] Specifically, such as Figure 1As shown, a pair of connecting arms 11 are connected by memory spring columns 14; the end of the connecting arm 11 away from the clamping arc plate 12 is slidably connected to the movable plate 13.

[0037] In this embodiment, the memory spring column 14 is connected to the movable plate 13 through the third slider; the third slider has the same sliding connection principle as the first slider. In addition, a memory spring column is also provided at the end of a pair of clamping arc plates 12 away from the connecting arm 11 to strengthen the clamping and limiting force.

Claims

1. A PVC well pipe flaring device, comprising a flaring probe (1), characterized in that: It also includes a mounting bracket (2), a conical positioning seat (3), and a heating cover (4); the conical positioning seat (3) is erected at the bottom of the mounting bracket (2); the flared probe (1) is suspended at the top of the conical positioning seat (3); the conical positioning seat (3) is connected to the top of the mounting bracket (2) through a first lifting rod (5); the heating cover (4) is fitted over the outside of the flared probe (1); the heating cover (4) has an opening for the conical positioning seat (3) to pass through.

2. The PVC well pipe flaring device according to claim 1, characterized in that: The conical positioning seat (3) includes a constricted end and an extended end; the constricted end extends into the opening of the conical positioning seat (3); the extended end is connected to the bottom of the mounting frame (2) via a second lifting rod (6).

3. The PVC well pipe flaring device according to claim 2, characterized in that: The conical positioning seat (3) is fitted with an anti-slip outer sleeve (7).

4. The PVC well pipe flaring device according to claim 3, characterized in that: The flared probe (1) is an inverted cone shape; the flared probe (1) is screwed to the end of the second lifting rod (6) away from the mounting bracket (2).

5. The PVC well pipe flaring device according to claim 4, characterized in that: The heating cover (4) is connected to a plurality of first sliders (9) via a connecting plate (8); the mounting bracket (2) is provided with a first groove in the vertical direction for the first sliders (9) to be embedded.

6. The PVC well pipe flaring device according to claim 4, characterized in that: It also includes a limiting component (10); one end of the limiting component (10) is slidably connected to the mounting bracket (2); the other end of the limiting component (10) extends between the flared probe (1) and the conical positioning seat (3).

7. The PVC well pipe flaring device according to claim 6, characterized in that: The limiting component (10) includes a pair of connecting arms (11) and a pair of clamping arc plates (12); the clamping arc plates (12) are connected to a movable plate (13) through the connecting arms (11); the movable plate (13) is slidably connected to the mounting bracket (2); an opening is left between the pair of clamping arc plates (12); the flared probe (1) and the conical positioning seat (3) are disposed opposite to each other at both ends of the opening.

8. The PVC well pipe flaring device according to claim 7, characterized in that: A pair of connecting arms (11) are connected by memory spring posts (14); the end of the connecting arm (11) away from the clamping arc plate (12) is slidably connected to the movable plate (13).

Citation Information

Patent Citations

  • Flaring device for PVC pipe production

    CN221112857U