Coil pipe straightening device

By designing a portable coil straightening device and using steam to soften the PE pipe, the problem of the hot water softening method being inconvenient to carry is solved, and a convenient straightening effect is achieved in any scenario.

CN223370072UActive Publication Date: 2025-09-23ZHEJIANG JIAHONG TOOL MFG CO LTD
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Patent Information

Application Number
CN202520105559.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2025-09-23
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

In the prior art, PE pipes need to be straightened using hot water softening during construction, but hot water is not easy to carry, cannot be used anytime and anywhere, and is not portable enough.

Method used

A portable coil straightening device was designed, which included a box, a steam cover, an exhaust valve and a heating component. It stored water and used the heating component to generate steam, which was then transferred to the coil for softening and straightening. The steam cover and exhaust valve were used to achieve convenient pressure relief and steam output.

Benefits of technology

It enables the coil to be softened and straightened conveniently in any scenario, improves portability and flexibility of use, and avoids the inconvenience of carrying hot water.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a coil pipe straightening device which comprises a box body, and the box body is provided with a water storage space. The steam cover covers the upper part of the box body; the exhaust valve is arranged at the top of the steam cover, is communicated with the covered water storage space and is used for exhausting steam in the space; the heating assembly is arranged at the bottom of the box body and used for evaporating the water stored in the water storage space into a water vapor state in a heating mode; the two ends of the hose assembly are connected with the water storage space and the coil pipe needing to be straightened correspondingly, and the hose assembly is used for conveying water vapor into the coil pipe from the water storage space and straightening the coil pipe through heating expansion. The coil pipe straightening device has the advantages that the box body can store water in a portable mode through the box body portable device and the internal heating assembly, steam generated after the heating assembly is externally connected with a power source is output to a coil pipe to be straightened, and the coil pipe is straightened, simple and portable through heating expansion of the steam.
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Description

Technical Field

[0001] The utility model relates to the technical field of coil straightening, in particular to a coil straightening device. Background Art

[0002] PE pipes are used in a wide range of fields, among which water pipes and gas pipes are their two largest application markets. Different types of PE pipes are processed and synthesized through PE resin. During the pipeline construction process, in order to reduce the cost of construction materials and labor costs, the PE coil needs to be straightened for use. Currently, to straighten the PE coil, a hot water softening method can be used. This method softens the pipe by slightly heating it in hot water, making it easier to straighten it while ensuring that the quality of the pipe is not affected. However, hot water needs to be prepared in advance before heating, which cannot meet the use scenarios anytime and anywhere and is not portable enough. For this reason, a portable device for steam softening coils is proposed. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a device for straightening a coiled pipe by softening it with steam.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a coil straightening device, comprising a box body, the box body having a water storage space; a steam cover, which is covered on the top of the box body; an exhaust valve, which is arranged on the top of the steam cover and is connected to the water storage space after the cover is closed, for discharging steam in the space; a heating component, which is arranged at the bottom of the box body, for evaporating the water stored in the water storage space into a water vapor state by heating; a hose assembly, the two ends of the hose assembly are respectively connected to the water storage space and the coil to be straightened, for transferring water vapor from the water storage space to the coil and straightening the coil by heat expansion.

[0005] Preferably, the exhaust valve includes an exhaust sleeve, an exhaust rod, a spring and a button; the exhaust sleeve is embedded in the steam cover and connected to the water storage space; the spring is sleeved on the exhaust rod, and its two ends are respectively limited by the exhaust rod and the button.

[0006] Preferably, the exhaust rod includes a barrier plate, a first gasket and a guide column; the barrier plate and the guide column are respectively arranged at two ends of the exhaust rod, and the first gasket is arranged between the spring and the exhaust rod.

[0007] Preferably, the exhaust sleeve includes a channel, the exhaust rod is embedded in the channel and displaced, and the blocking and communication are achieved by the displacement of the barrier piece in the channel.

[0008] Preferably, the exhaust valve further includes an exhaust cover, a sleeve and a second gasket; the exhaust cover is installed in cooperation with the mounting column, the sleeve is sleeved on the exhaust sleeve through threaded cooperation, and the second gasket is arranged between the exhaust sleeve and the sleeve.

[0009] Preferably, the heating component includes a heating tube, a thermostat, a plug connector and a fixing plate; the heating tube is arranged at the bottom of the box through the fixing plate, the thermostat is arranged between the heating tube and the plug connector for connecting the two, the plug connector is located outside the box, and a rainproof plate is provided on the plug connector.

[0010] Preferably, it comprises a power cord, one end of which is connected to the plug connector, and the other end of which is connected to an external power source.

[0011] Preferably, the hose assembly includes a steam joint and a coil joint provided at both ends of the hose; the steam joint is connected to the steam hole provided on the top of the steam cover, and the coil joint is connected to the coil to be straightened.

[0012] Preferably, hooks are provided on both sides of the steam cover, and the hooks are used for hanging the hose assembly.

[0013] Preferably, the top of the steam cover is also provided with a handle

[0014] The beneficial effects of the present invention are as follows: through the provision of a portable box device and an internal heating component, the box can store water in a portable manner, and the heating component is connected to an external power source to generate steam which is output to the coil to be straightened. After the water vapor heats and expands, the coil can be straightened, which is simple and portable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the coil straightening device of the present invention;

[0016] Figure 2 This is a schematic structural diagram of the exhaust valve of the present invention;

[0017] Figure 3 This is a schematic diagram of the position of the steam hole of the utility model;

[0018] Figure 4 This is a schematic diagram of the position of the heating component of the present invention;

[0019] Figure 5 This is a schematic diagram of the explosion structure of the heating component of the present invention;

[0020] Figure 6 This is a schematic structural diagram of the hose assembly of the present invention;

[0021] Figure 7This is a schematic diagram of the connection between the hose assembly and the coil straightening device of the present invention. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Example 1

[0023] For coil straightening, the existing treatment method is to use hot water soaking method. Generally, the PE pipe is soaked in 60-70 degrees hot water to soften it, and then the two ends are fixed with ropes to straighten it. Keeping it for a period of time can achieve softening and straightening. However, for different usage scenarios, it is not convenient enough and the coil cannot be straightened anytime and anywhere. Hot water needs to be prepared in advance, and hot water is not easy to carry. Therefore, tools for carrying hot water are required, such as electric water heaters or kettles.

[0024] For this purpose, refer to Figure 1 The diagram shows a portable device for a steam softening coil, comprising a housing 100, a steam cover 200, an exhaust valve 300, a heating component 400 and a hose assembly 500. Specifically, the housing 100 has a water storage space for portable water storage. The steam cover 200 is covered on the top of the housing 100, and water is added or removed from the housing 100 by opening or closing the cover. The heating component 400 is arranged at the bottom of the housing 100, and is used to evaporate the water stored in the water storage space into water vapor by heating. The exhaust valve 300 is arranged on the top of the steam cover 200 and is connected to the water storage space after the cover is closed, and is used to discharge the steam in the space. At the same time, during or after use, there will be a pressure increase in the space, and the exhaust valve 300 is also used to relieve the pressure in the space. The two ends of the hose assembly 500 are respectively connected to the water storage space and the coil to be straightened, and are used to transfer water vapor from the water storage space to the coil and straighten the coil through heat expansion.

[0025] Reference Figure 2 The exhaust valve 300 is schematically shown in FIG. 3 , and a specific solution is proposed for the exhaust valve 300. The exhaust valve 300 includes an exhaust sleeve 301, an exhaust rod 302, a spring 303, a button 304, an exhaust cover 305, a sleeve 306, and a second gasket 307. Specifically, the exhaust sleeve 301 is embedded in the steam cover 200 and connected to the water storage space. The exhaust sleeve 301 includes a channel 301a. The exhaust rod 302 is embedded in the channel 301a and displaced. Blockage and communication are achieved by the displacement of the barrier piece 302a in the channel 301a.

[0026] In simple terms, the steam generated in the water storage space enters and exits through the channel 301a, and the exhaust rod 302 includes a barrier piece 302a, a first gasket 302b and a guide column 302c. The barrier piece 302a and the guide column 302c are respectively arranged at the two ends of the exhaust rod 302, and the first gasket 302b is arranged between the spring 303 and the exhaust rod 302. The diameter of the barrier piece 302a is the same as the cross-section of the channel 301a. When the barrier piece 302a is located in the channel 301a, it just blocks the steam. When the button 304 is pressed down, the barrier piece 302a will be pushed out of the channel 301a due to the linkage with the exhaust rod 302, and the steam is discharged from the gap between the channel 301a and the exhaust rod 302. After releasing the button 304, the spring 303 rebounds and resets, continuing to block the channel 301a to prevent steam leakage, thereby achieving exhaust and pressure relief in the space.

[0027] Furthermore, the spring 303 is sleeved on the exhaust rod 302 , and both ends of the spring 303 are respectively limited by the exhaust rod 302 and the button 304 .

[0028] The exhaust cover 305 is fitted with the mounting post 301 b , the sleeve 306 is sleeved on the exhaust sleeve 301 through threaded fitting, and the second gasket 307 is cushioned between the exhaust sleeve 301 and the sleeve 306 .

[0029] Reference Figure 3 As shown in the figure, the sleeve 306 is arranged at the bottom of the steam cover 200, and is used to fix the exhaust sleeve 301 on the steam cover 200, and the exhaust cover 305 is arranged at the top of the steam cover 200, and is used to limit the upward displacement of the button 304. At the same time, a column hole is provided on the gas cover 305 for matching with the installation column 301b, and the installation column 301b is inserted into the column hole for positioning and installation, which is used for limiting the installation of the exhaust sleeve 301 and the steam cover 200 at the top.

[0030] Reference Figure 4-5 As shown in the figure, the heating component 400 includes a heating tube 401, a thermostat 402, a plug connector 403 and a fixing plate 404; the heating tube 401 is arranged at the bottom of the box body 100 through the fixing plate 404, the thermostat 402 is arranged between the heating tube 401 and the plug connector 403 for connecting the two, the plug connector 403 is located outside the box body 100, and a rainproof plate 403a is provided on the plug connector 403.

[0031] It should be noted that heating tube 401 is an electric heating tube that generates heat via an external power source. This is a mature existing technology. It is a tubular electric heating element (hereinafter referred to as an electric heating tube), an electrical component that converts electrical energy into thermal energy. It is housed in a metal tube. For example, it can be a stainless steel or copper tube. A spiral heating alloy wire, such as a nickel-chromium or iron-chromium alloy, is evenly distributed along the central axis of the tube. The interstices are filled with compacted magnesium oxide sand, which has excellent insulating and thermal conductivity. The ends of the tube are sealed with silicone. This metal-clad heating element can heat air, metal molds, and various liquids. Common electric heating tubes include finned electric heating tubes, Teflon electric heating tubes, and quartz electric heating tubes. In this embodiment, only these are required to perform the heating function.

[0032] Thermostat 402 is a temperature-control element connected to heating tube 401. Under normal operation, it automatically opens or closes a circuit to maintain the controlled component within a certain temperature range. Its operating temperature can be fixed or adjustable, and it directly or indirectly controls one or more heat and cooling sources to maintain a desired temperature. This is also a well-established technology, widely used in household electric water heaters, for example. It consists of a sensor and a converter. The sensor measures temperature changes and generates a desired effect on the converter. The converter converts the effect from the sensor into an effect that appropriately controls the temperature-changing device. This can be implemented by referring to existing technologies, so its implementation will not be described in detail here.

[0033] Specifically, the thermostat 402 is connected to the conductive terminal, which is a three-hole socket, a common household socket, mainly used for 220V single-phase AC circuits. It consists of three jacks, namely the neutral wire on the left, the live wire on the right, and the ground wire on the top. It is then installed on the plug connector 403, and one end of the power cord 600 is connected to the plug connector 403, and the other end is connected to the external power supply to realize the power connection of the thermostat 402.

[0034] Reference Figure 6-7 As shown in FIG. 1 , the hose assembly 500 in this embodiment includes a steam connector 501 and a coil connector 502 provided at both ends of the hose. Specifically, the steam connector 501 is connected to the steam hole 203 provided on the top of the steam cover 200, and the coil connector 502 is connected to the coil to be straightened.

[0035] In order to realize the storage of the hose assembly 500 after coiling and further improve the portability, hooks 201 are provided on both sides of the steam cover 200. The hose assembly 500 can be coiled and hung on the hooks 201 at both ends. At the same time, a handle 202 is also provided on the top of the steam cover 200. When carrying it for use, the user can carry the coil straightening device through the handle 202.

[0036] It should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above descriptions and ideas. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the technical solutions of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A coil straightening device, characterized by: include, A box body (100), wherein the box body (100) has a water storage space; A steam cover (200) is placed on top of the box body (100); An exhaust valve (300) is provided on the top of the steam cover (200) and is in communication with the water storage space after the cover is closed, and is used to exhaust steam in the space; A heating component (400) is provided at the bottom of the box (100) and is used to evaporate the water stored in the water storage space into a water vapor state by generating heat; A hose assembly (500) is provided, wherein both ends of the hose assembly (500) are respectively connected to the water storage space and the coil to be straightened, and is used for transmitting water vapor from the water storage space to the coil and straightening the coil through heat expansion.

2. The coiled tube straightening device according to claim 1, characterized in that: The exhaust valve (300) comprises an exhaust sleeve (301), an exhaust rod (302), a spring (303) and a button (304); The exhaust sleeve (301) is embedded in the steam cover (200) and communicates with the water storage space; The spring (303) is sleeved on the exhaust rod (302), and its two ends are respectively limited by the exhaust rod (302) and the button (304).

3. The coiled tube straightening device according to claim 2, characterized in that: The exhaust rod (302) comprises a barrier sheet (302a), a first gasket (302b) and a guide column (302c); The barrier sheet (302a) and the guide column (302c) are respectively arranged at the two end portions of the exhaust rod (302), and the first gasket (302b) is arranged between the spring (303) and the exhaust rod (302).

4. The coiled tube straightening device according to claim 3, characterized in that: The exhaust sleeve (301) comprises a channel (301a), the exhaust rod (302) is embedded in the channel (301a) and displaced, and blockage and communication are achieved through the displacement of the barrier piece (302a) in the channel (301a).

5. The coiled tube straightening device according to claim 2, characterized in that: The exhaust valve (300) further includes an exhaust cover (305), a sleeve (306) and a second gasket (307); The exhaust cover (305) is fitted with the mounting post (301b), the sleeve (306) is sleeved on the exhaust sleeve (301) through threaded fitting, and the second gasket (307) is cushioned between the exhaust sleeve (301) and the sleeve (306).

6. The coiled tube straightening device according to claim 1, characterized in that: The heating component (400) comprises a heating tube (401), a thermostat (402), a plug connector (403) and a fixing plate (404); The heating tube (401) is arranged at the bottom of the box (100) via the fixing plate (404), and the thermostat (402) is arranged between the heating tube (401) and the plug connector (403) for connecting the two. The plug connector (403) is located outside the box (100), and a rainproof plate (403a) is provided on the plug connector (403).

7. The coiled tube straightening device according to claim 6, characterized in that: It comprises a power cord (600), one end of the power cord (600) is connected to the plug connector (403), and the other end is connected to an external power source.

8. The coiled tube straightening device according to claim 6, characterized in that: The hose assembly (500) comprises a steam joint (501) and a coil joint (502) provided at both ends of the hose; The steam joint (501) is connected to the steam hole (203) provided on the top of the steam cover (200), and the coil joint (502) is connected to the coil to be straightened.

9. The coiled tube straightening device according to claim 1, characterized in that: Hanging buckles (201) are provided on both sides of the steam cover (200), and the hanging buckles (201) are used for hanging the hose assembly (500).

10. The coiled tube straightening device according to claim 1, characterized in that: The top of the steam cover (200) is also provided with a handle (202).