PE pipe convenient to butt joint

Abstract

The utility model belongs to the technical field of PE pipes, and discloses a PE pipe convenient for butt joint, which comprises a PE pipe and a butt joint structure located outside the PE pipe, the butt joint structure comprises an inserting sleeve installed at the left end of the PE pipe and a limiting sleeve installed at the right end of the PE pipe, the inner wall of the inserting sleeve is provided with four rectangular grooves, and inserting blocks are installed in the rectangular grooves. Through the design of the butt joint structure, the butt joint process of the two PE pipes is greatly simplified, during operation, only the left sides and the right sides of the ends of the two PE pipes need to be accurately aligned, then the specially-made inserting blocks are accurately inserted into the corresponding inserting grooves, then the screws are rotated by 45 degrees, the abutting blocks are driven to rotate along with the screws, and in the rotating process, the two PE pipes can be connected in a butt joint mode. The abutting block smoothly enters the preset limiting groove, and at the moment, a tight abutting relation is formed between the abutting block and the limiting groove, so that the position of the inserting block is fixed, tight attachment between the inserting sleeve and the limiting sleeve is ensured, and the stability and the sealing performance of butt joint are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of PE pipe, specifically a PE pipe convenient for butt joint. BACKGROUND

[0002] Polyethylene (PE) plastics are known for their excellent resistance to most of the life and industrial chemicals, in the connection of PE pipeline, the butt joint welding method provides the highest reliability in the specific diameter and pressure range, this welding mode involves heating the pipeline end to realize the connection, however, compared with steel pipe, PE pipeline is slightly insufficient in mechanical properties, therefore, in the construction process, the safety distance of heating supply needs to be paid special attention to, to ensure that the pipeline is not directly exposed to air and sunlight, in addition, since PE pipeline is sensitive to chemicals, measures need to be taken to prevent sewage pipeline leakage to protect the integrity of the pipeline system.

[0003] The existing PE pipe convenient for butt joint has the following disadvantages: the existing PE pipe butt joint process mainly relies on the hot air machine hot melt butt joint mode, this operation process requires the construction personnel to carry the hot air machine at any time during the operation process, however, in the actual application scene, the hot air machine is usually large in size and heavy, the construction personnel not only need to carry the hot air machine to move back and forth in the construction site, but also need to consider other construction tools and materials at the same time, which undoubtedly greatly increases the labor intensity of the construction personnel, makes the whole operation process time-consuming and laborious, and more importantly, when using the hot air machine for hot melt butt joint, a certain time is needed to preheat the hot air machine, and the temperature and heating time of the hot air machine need to be accurately controlled during the butt joint process, to ensure that the hot melt effect of the PE pipe reaches the best state, but in the actual operation, due to the complex and changeable construction site environment, such as the difference of temperature, humidity and the influence of pipe surface condition and other factors, it is often difficult to accurately control these parameters, which not only easily leads to unstable butt joint quality, but also further prolongs the butt joint time, making the overall butt joint efficiency low. UTILITY MODEL CONTENTS

[0004] In order to solve the problems in the background art, the utility model provides a PE pipe convenient for butt joint, which comprises a PE pipe and a butt joint structure located outside the PE pipe.

[0005] The butt joint structure comprises a plug-in sleeve mounted on the left end of the PE pipe and a limiting sleeve mounted on the right end of the PE pipe, four rectangular grooves are formed in the inner wall of the plug-in sleeve, and plug-in blocks are mounted in the rectangular grooves, screw holes are formed in the inner wall of the plug-in blocks, and screw rods are threadedly connected to the inner wall of the screw holes.

[0006] Preferably, a plug-in groove adapted to the plug-in block is formed in the inner wall of the limiting sleeve, and a limiting groove is formed in the inner wall of the plug-in groove.

[0007] Preferably, the outer wall of the plug-in sleeve is provided with two limiting blocks limiting the rotation angle of the screw rod, and the abutting block is in an inclined posture opposite the diagonal of the plug-in block.

[0008] Preferably, the abutting block can fix the position of the plug-in sleeve and the limiting sleeve after being rotated to a vertical state.

[0009] Compared with the prior art, the utility model has the beneficial effects as follows:

[0010] The utility model discloses a design of butt joint structure, two PE pipes can be greatly simplified in the butt joint process, when operating, only need to accurately align the left and right sides of the two PE pipe ends, then accurately insert the specially-made plug-in block into the corresponding plug-in slot, then, rotate the screw rod by forty-five degrees, drive the abutting block to rotate, in this rotation process, the abutting block smoothly enters the preset limiting slot, at this moment, the abutting block and the limiting slot form the close abutting relation, thereby fixing the position of the plug-in block, not only ensure the close adhesion between the plug-in sleeve and the limiting sleeve, but also greatly improve the stability and the sealing property of butt joint, and more importantly, it makes the butt joint process between the two PE pipes become simple, greatly improves the construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the whole structure schematic diagram of the utility model;

[0012] Figure 2 It is the whole structure schematic diagram of the utility model; Figure 1 It is the local enlarged schematic diagram of B place;

[0013] Figure 3 It is the whole structure schematic diagram of the utility model PE pipe splicing;

[0014] Figure 4 It is the whole split half -cut structure schematic diagram of the utility model PE pipe splicing;

[0015] Figure 5 It is the whole split structure schematic diagram of the utility model PE pipe splicing;

[0016] Figure 6 It is the first morphological structure schematic diagram of the utility model screw rod and abutting block;

[0017] Figure 7 It is the second morphological structure schematic diagram of the utility model screw rod and abutting block;

[0018] Figure 8 It is the second morphological structure schematic diagram of the utility model screw rod and abutting block; Figure 4 It is the local enlarged schematic diagram of A place.

[0019] In the diagram: 1. PE pipe; 2. Butt joint structure; 21. Insert sleeve; 22. Limiting sleeve; 23. Insert block; 24. Screw; 25. Abutment block; 26. Insert groove; 27. Limiting groove; 28. Restricting block; 29. ​​Sealing gasket. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 8 As shown, this utility model provides a PE pipe that is easy to connect, including a PE pipe 1 and a connecting structure 2 located outside the PE pipe 1;

[0022] The docking structure 2 includes a plug sleeve 21 installed at the left end of the PE pipe 1 and a limiting sleeve 22 installed at the right end of the PE pipe 1. The inner wall of the plug sleeve 21 has four rectangular grooves and plug blocks 23 are installed inside the rectangular grooves. The inner wall of the plug block 23 has a threaded hole, and a screw 24 is threadedly connected to the inner wall of the threaded hole. The bottom of the screw 24 is rotatably connected to an abutment block 25.

[0023] By adopting the above solution, the design of the docking structure 2 greatly simplifies the docking process of the two PE pipes 1. During operation, it is only necessary to precisely align the left and right sides of the two PE pipes 1, and then accurately insert the specially designed plug block 23 into the corresponding plug groove 26. Then, by rotating the screw 24 by 45 degrees, the abutment block 25 is driven to rotate. During this rotation, the abutment block 25 smoothly enters the preset limiting groove 27. At this time, a tight abutment relationship is formed between the abutment block 25 and the limiting groove 27, thereby fixing the position of the plug block 23. This not only ensures the tight fit between the plug sleeve 21 and the limiting sleeve 22, but also greatly improves the stability and sealing of the docking. More importantly, it makes the docking process between the two PE pipes 1 simple and greatly improves the construction efficiency.

[0024] like Figures 1 to 8 As shown, the inner wall of the limiting sleeve 22 is provided with a plug groove 26 that is adapted to the plug block 23, and the inner wall of the plug groove 26 is provided with a limiting groove 27. The outer wall of the plug sleeve 21 is provided with two limiting blocks 28 that limit the rotation angle of the screw 24. The abutment block 25 is in an oblique posture diagonally opposite to the plug block 23.

[0025] Adopting the above scheme: the limiting block 28 is provided with two, for limiting the rotation angle of the screw rod 24, so that the screw rod 24 can only rotate forty-five degrees in the middle of the two limiting blocks 28, in this way, the operation difficulty is greatly reduced, and the butt joint and subsequent disassembly are more convenient, and the top of the screw rod 24 is provided with an extension block in abutment with the limiting block 28.

[0026] As shown in Figures 1 to 8 The sealing gasket 29 is installed at the inner wall of the limiting sleeve 22, the insertion block 23 is inserted into the insertion slot 26, and the abutment block 25 is driven to rotate by the rotating screw rod 24, so that the abutment block 25 is rotated into a vertical state and located in the limiting slot 27, and the position of the insertion sleeve 21 and the limiting sleeve 22 can be fixed after the abutment block 25 is rotated into a vertical state.

[0027] Adopting the above scheme: in the pipeline system, especially for the PE pipe 1 conveying liquid or gas, the sealing performance directly affects the normal operation of the system, the sealing gasket 29 can fill the small gap between the insertion sleeve 21 and the limiting sleeve 22, and when the two are tightly fitted under the fixation of the abutment block 25, the sealing gasket 29 will be extruded to a certain extent, thereby forming effective sealing, preventing medium leakage, ensuring the sealing performance and safety of the pipeline system, reducing the maintenance cost and safety risk caused by leakage, and the abutment block 25 is in a diagonal posture opposite the insertion block 23, so that the length thereof is greater than the diameter of the insertion block 23, and in the installation, the abutment block 25 is driven to rotate by the rotating screw rod 24, so that it assumes a vertical state, and at this time, the abutment between the abutment block 25 and the limiting slot 27 makes the insertion block 23 not fall off, thereby achieving the fixing effect.

[0028] The working principle of the utility model is as follows:

[0029] Firstly, the two PE pipes 1 to be butt jointed are horizontally placed, the pipe ends are accurately aligned left and right, the insertion block 23 installed in the four rectangular grooves in the left end insertion sleeve 21 of one PE pipe 1 is aligned with the insertion slot 26 in the inner wall of the limiting sleeve 22 at the right end of the other PE pipe 1, and is slowly and accurately inserted to ensure that the insertion block 23 smoothly enters the insertion slot 26, the screw rod 24 is rotated by using a tool or manually, the extension block at the top of the screw rod 24 rotates between the two limiting blocks 28, the rotation angle is forty-five degrees, as the screw rod 24 rotates, the abutment block 25 rotatably connected at the bottom thereof gradually rotates into a vertical state from a diagonal posture and smoothly enters the limiting slot 27, the abutment block 25 is tightly abutted with the limiting slot 27, the position of the insertion block 23 is fixed, the insertion sleeve 21 and the limiting sleeve 22 are tightly fitted, the butt joint of the two PE pipes 1 is completed, finally, after the butt joint is completed, it is checked whether the sealing gasket 29 normally plays a role, for the pipeline conveying liquid or gas, a simple pressure test can be carried out, and whether there is leakage phenomenon at the connection is observed, so as to ensure the sealing performance and safety of the pipeline system.

[0030] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A PE pipe for facilitated connection, characterized in that: The utility model relates to a PE pipe (1) and butt joint structure (2) outside PE pipe (1). The butt joint structure (2) includes a plug-in sleeve (21) installed on the left end of the PE pipe (1) and a limiting sleeve (22) installed on the right end of the PE pipe (1), the inner wall of the plug-in sleeve (21) is provided with four rectangular grooves, and the plug-in block (23) is installed in the rectangular grooves, the inner wall of the plug-in block (23) is provided with a threaded hole, the threaded hole is threadedly connected with a screw rod (24), and the bottom of the screw rod (24) is rotatably connected with an abutting block (25).

2. The PE pipe of claim 1, wherein: The inner wall of the limiting sleeve (22) is provided with a plug-in groove (26) matched with the plug-in block (23), and the inner wall of the plug-in groove (26) is provided with a limiting groove (27).

3. The PE pipe of claim 1, wherein: The outer wall of the plug-in sleeve (21) is provided with two limiting blocks (28) limiting the rotation angle of the screw rod (24), and the abutting block (25) is diagonally arranged relative to the plug-in block (23).

4. The PE pipe of claim 2, wherein: The inner walls of the plug-in sleeve (21) and the limiting sleeve (22) are both provided with sealing washers (29), the plug-in block (23) is plugged into the plug-in groove (26), and the abutting block (25) is rotated by rotating the screw rod (24) to make the abutting block (25) rotate to a vertical state and be located in the limiting groove (27).

5. A PE pipe for easy connection according to claim 4, characterized in that: The abutting block (25) can fix the positions of the plug-in sleeve (21) and the limiting sleeve (22) after rotating to a vertical state.

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