Quick butt joint fixing device for PE water supply pipe

Abstract

The utility model relates to pipeline connection technical field, and disclose a kind of for the quick butt joint fixing device of PE water supply pipe, including connecting pipe, the connecting pipe is L-shaped structure, both ends of connecting pipe are fixedly connected with bellows, the end of bellows is rotatably connected with connecting ring, the end of two bellows is movably connected with water supply pipe, the lower end outer wall of bellows is fixedly installed with support frame, and water supply pipe is supported by the end of support frame. In the utility model, the water supply pipe is connected by setting compressible bellows at the both ends of connecting pipe, and is equipped with the arc-shaped support block of end with ball, when installing in embedded groove encounters pipeline length slightly long or space is cramped, operator can compress one of bellows in advance, reduce the axial dimension of device, and the key installation operation space is released for the end of water supply pipe to be connected.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, and in particular to a quick-connect fixing device for PE water supply pipes. Background Technology

[0002] In building water supply and drainage engineering, PE (polyethylene) water supply pipes are widely used due to their advantages such as corrosion resistance, good flexibility, and long service life.

[0003] When embedding drainage pipes into bottom grooves or burying them underground, existing technologies present challenges for corner connections of large-diameter PE water supply pipes within narrow grooves. Firstly, due to the extremely limited space in the grooves, even slight errors in pipe length or insufficient on-site operating space make precise alignment and insertion of traditional rigid connectors difficult. This necessitates cutting the ends of the PE water supply and drainage pipes according to the site conditions, increasing construction steps and slowing down the process. Secondly, inherent length tolerances in PE pipes and on-site construction are unavoidable, and rigid connectors lack effective axial adjustment and error compensation capabilities, leading to connection difficulties or inadequate sealing, posing a risk of leakage. Therefore, we propose a quick-connect and fixing device for PE water supply pipes. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a quick connection and fixing device for PE water supply pipes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick docking and fixing device for PE water supply pipes, comprising a connecting pipe, wherein the connecting pipe has an L-shaped structure, both ends of the connecting pipe are fixedly connected to corrugated pipes, the ends of the corrugated pipes are rotatably connected to connecting rings, the ends of the two corrugated pipes are movably connected to water supply pipes, and a support frame is fixedly installed on the lower outer wall of the corrugated pipes, thereby supporting the water supply pipes through the ends of the support frame.

[0006] Preferably, the end of the water supply pipe is movably connected to a threaded ring, the inner wall of which has an installation cavity, and a retaining block is fixedly installed inside the installation cavity. The retaining block is elastically configured.

[0007] Preferably, the end of the clamping block is wedge-shaped, and an elastic ring is fixedly connected to the end of the clamping block.

[0008] Preferably, the elastic ring has a circular cross-section and is elastically configured.

[0009] Preferably, the inner wall of the connecting ring is provided with a threaded groove, and the threaded ring is threadedly connected to the inner wall of the connecting ring.

[0010] Preferably, a support block is fixedly installed at the end of the support frame, and the cross-section of the support block is arc-shaped.

[0011] Preferably, the upper surface of the support block is in contact with the outer wall of the water supply pipe, and multiple ball bearings are rotatably mounted on the upper surface of the support block. Beneficial effects

[0012] This utility model provides a quick-connection and fixing device for PE water supply pipes. It has the following beneficial effects:

[0013] (1) The quick docking and fixing device for PE water supply pipes connects the water supply pipes by setting compressible corrugated pipes at both ends of the connecting pipe and equipping it with an arc-shaped support block with ball bearings at the end. When the pipe is slightly long or the space is limited during installation in the embedded groove, the operator can pre-compress one of the corrugated pipes to reduce the axial dimension of the device, thus freeing up the key installation space for the end of the water supply pipe to be connected. With the auxiliary support of the support frame and the support block, the end of the water supply pipe can be easily adjusted to align with the end of the corrugated pipe. After releasing the compressive force on the corrugated pipe, the corrugated pipe naturally rebounds, guiding and prompting the end of the water supply pipe to be smoothly inserted into it. This avoids the limitation of narrow space on the precise alignment and insertion of the pipe. There is no need for construction personnel to cut the PE water supply pipe, thus realizing the quick and labor-saving docking of large-diameter pipes at the corner.

[0014] (2) When the connecting ring at the end of the corrugated pipe is tightened with the threaded ring on the water supply pipe, the axial tension generated pulls the corrugated pipe to extend, ensuring that the end of the water supply pipe is inserted deeper and more firmly into the corrugated pipe, increasing the overlap length and improving the reliability of the connection. The sealing gasket at the connecting ring ensures the seal at this point. On the other hand, the tension acts simultaneously on the elastic abutment block and elastic ring inside the threaded ring. When subjected to tension towards the corrugated pipe, the elastic ring deforms first, squeezing the wedge-shaped abutment block to cause it to deform, thereby generating strong extrusion and friction with the outer wall of the water supply pipe. This not only firmly locks the threaded ring on the water supply pipe to prevent it from loosening, but more importantly, it automatically compensates for the slight length error of the pipe, ensuring that the corrugated pipe and the water supply pipe can maintain a tight connection under various working conditions, greatly improving the overall stability of the connection. Attached Figure Description

[0015] 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.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

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

[0018] Figure 2 This is a schematic diagram showing the disassembled structure of the water supply pipe and connecting pipe of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the water supply pipe structure of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the water supply pipe of this utility model in another state;

[0021] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0022] Figure 6 This utility model Figure 4 Enlarged structural diagram at point B.

[0023] Legend: 1. Connecting pipe; 2. Water supply pipe; 3. Threaded ring; 4. Corrugated pipe; 5. Connecting ring; 6. Support frame; 7. Support block; 8. Threaded groove; 9. Mounting cavity; 10. Clamping block; 11. Elastic ring. Detailed Implementation

[0024] 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.

[0025] like Figure 1-6 As shown, a quick-connection and fixing device for PE water supply pipes includes a connecting pipe 1, which has an L-shaped structure. Both ends of the connecting pipe 1 are fixedly connected to corrugated pipes 4, and the ends of the corrugated pipes 4 are rotatably connected to connecting rings 5. The ends of the two corrugated pipes 4 are movably connected to water supply pipes 2. A support frame 6 is fixedly installed on the lower outer wall of the corrugated pipes 4, and the water supply pipes 2 are supported by the ends of the support frame 6.

[0026] The connecting pipe 1 can be used to connect two water supply pipes 2 at a corner. When the two water supply pipes 2 and the connecting pipe 1 are installed inside the embedded groove, and when the length of the two water supply pipes 2 is slightly long and difficult to connect with the docking and fixing device, the user can compress one of the corrugated pipes 4 to make room for the installation area of ​​the end of the water supply pipe 2 and the end of the docking and fixing device. Then, the end of the water supply pipe 2 is aligned with the end of the corrugated pipe 4. Then, the pressure that compressed the corrugated pipe 4 is released, so that the water supply pipe 2 is inserted into the interior of the corrugated pipe 4. During this process, the end of the water supply pipe 2 can always be supported by the support frame 6. The end of the connecting ring 5 near the corrugated pipe 4 is provided with a sealing gasket to prevent leakage at the connection between the water supply pipe 2 and the corrugated pipe 4.

[0027] like Figure 1 As shown, a threaded ring 3 is movably connected to the end of the water supply pipe 2. An installation cavity 9 is opened on the inner wall of the threaded ring 3. A clamping block 10 is fixedly installed inside the installation cavity 9. The clamping block 10 is elastically set. The setting of the clamping block 10 can increase the friction between the inner wall of the threaded ring 3 and the outer wall of the water supply pipe 2, and enhance the connection between the water supply pipe 2 and the threaded ring 3.

[0028] like Figure 5 and Figure 6 As shown, the end of the clamping block 10 is wedge-shaped, and an elastic ring 11 is fixedly connected to the end of the clamping block 10. The elastic ring 11 can tighten the outer wall of the water supply pipe 2. The end of the clamping block 10 is thin because it is wedge-shaped, so it can deform synchronously with the elastic ring 11 to make the clamping block 10 and the outer wall of the water supply pipe 2 fit together.

[0029] like Figure 5 and Figure 6 As shown, the cross-section of the elastic ring 11 is circular, and the elastic ring 11 is elastically designed. Both the elastic ring 11 and the clamping block 10 are made of elastic material. The elastic coefficient of the elastic ring 11 is smaller than that of the clamping block 10. During the process of the threaded ring 3 being inserted from the end of the water supply pipe 2 and fitted onto the outer wall of the water supply pipe 2, the elastic ring 11 is in contact with the outer wall of the water supply pipe 2. When the threaded ring 3 moves to the appropriate position, the user pulls the threaded ring 3 backward as a whole. At this time, under the action of friction between the elastic ring 11 and the water supply pipe 2, the elastic ring 11 deforms and squeezes the clamping block 10 and the water supply pipe 2 tightly, so that the threaded ring 3 is stably connected to the outer wall of the water supply pipe 2.

[0030] like Figure 2As shown, the inner wall of the connecting ring 5 is provided with a threaded groove 8, and the threaded ring 3 is threadedly connected to the inner wall of the connecting ring 5; the outer wall of the threaded ring 3 is matched with the threaded groove 8 inside the connecting ring 5. By rotating the connecting ring 5, the threaded ring 3 is connected to the connecting ring 5. On the one hand, the water supply pipe 2 and the corrugated pipe 4 can be stably connected. On the other hand, the tensile force generated between the threaded ring 3 and the connecting ring 5 during the threaded connection can make the end of the water supply pipe 2 go deeper into the interior of the corrugated pipe 4, so that the overlap area between the corrugated pipe 4 and the water supply pipe 2 becomes longer, thereby ensuring the stability of the connection between the water supply pipe 2 and the corrugated pipe 4.

[0031] like Figure 2 As shown, a support block 7 is fixedly installed at the end of the support frame 6. The cross-section of the support block 7 is arc-shaped. The arc-shaped support block 7 can stably support the connection between the water supply pipe 2 and the corrugated pipe 4, thereby facilitating the connection between the water supply pipe 2 and the corrugated pipe 4.

[0032] like Figure 2 As shown, the upper surface of the support block 7 is in contact with the outer wall of the water supply pipe 2, and multiple balls are rotatably mounted on the upper surface of the support block 7. The contact between the upper surface of the support block 7 and the outer wall of the water supply pipe 2 can increase the contact area between the support block 7 and the water supply pipe 2, so that the support block 7 can stably support the water supply pipe 2. The balls rotatably mounted on the upper surface of the support block 7 can convert the sliding friction between the outer wall of the water supply pipe 2 and the support block 7 into rolling friction, thereby reducing the friction between the two.

[0033] The working principle of this utility model is as follows: Due to the limited installation space inside the embedded groove, the user can place two large-diameter water supply pipes 2 inside the groove and insert the threaded ring 3 from the end of the water supply pipe 2, sleeved onto the outer wall of the end of the water supply pipe 2. Then, the connecting pipe 1 is placed at the corner inside the groove. When connecting the water supply pipe 2 and the connecting pipe 1, the user can first compress the corrugated pipe 4 to make room for the installation area of ​​the water supply pipe 2 and the corrugated pipe 4. Then, the positions of the water supply pipe 2 and the corrugated pipe 4 are adjusted so that the end of the water supply pipe 2 is supported and raised by the cooperation of the support frame 6 and the support block 7. After releasing the external force compressing the corrugated pipe 4, the end of the water supply pipe 2 can be inserted into the inside of the corrugated pipe 4. Then, by rotating... The connecting ring 5 located at the end of the corrugated pipe 4 connects the connecting ring 5 with the threaded ring 3. When the connecting ring 5 and the threaded ring 3 are connected by threads, a horizontal tension is generated to pull the corrugated pipe 4 and the threaded ring 3. When the threaded ring 3 is subjected to a tension in the direction of the corrugated pipe 4, the elastic ring 11 and the clamping block 10 inside it deform and squeeze tightly against the outer wall of the water supply pipe 2, thereby strengthening the connection between the threaded ring 3 and the outer wall of the water supply pipe 2. When the corrugated pipe 4 is subjected to a tension in the opposite direction, the corrugated pipe 4 can completely return to its initial state and ensure that the end of the water supply pipe 2 is stably inserted into the inside of the corrugated pipe 4. The above process allows the two water supply pipes 2 to be quickly connected and fixed at the corner even with some dimensional errors.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-connect fixing device for PE water supply pipes, comprising a connecting pipe (1), characterized in that: The connecting pipe (1) has an L-shaped structure. Both ends of the connecting pipe (1) are fixedly connected to corrugated pipes (4). The ends of the corrugated pipes (4) are rotatably connected to connecting rings (5). The ends of the two corrugated pipes (4) are movably connected to water supply pipes (2). The lower outer wall of the corrugated pipes (4) is fixedly installed with a support frame (6), which supports the water supply pipes (2) through the end of the support frame (6).

2. The quick-connect fixing device for PE water supply pipes according to claim 1, characterized in that: The end of the water supply pipe (2) is movably connected to a threaded ring (3), and the inner wall of the threaded ring (3) is provided with an installation cavity (9). A clamping block (10) is fixedly installed inside the installation cavity (9), and the clamping block (10) is elastically set.

3. A quick-connect fixing device for PE water supply pipes according to claim 2, characterized in that: The end of the abutment block (10) is wedge-shaped, and an elastic ring (11) is fixedly connected to the end of the abutment block (10).

4. A quick-connect fixing device for PE water supply pipes according to claim 3, characterized in that: The cross-section of the elastic ring (11) is circular, and the elastic ring (11) is elastically configured.

5. A quick-connect fixing device for PE water supply pipes according to claim 4, characterized in that: The inner wall of the connecting ring (5) is provided with a threaded groove (8), and the threaded ring (3) is threadedly connected to the inner wall of the connecting ring (5).

6. A quick-connect fixing device for PE water supply pipes according to claim 5, characterized in that: The support frame (6) is fixedly installed with a support block (7) at its end, and the cross section of the support block (7) is arc-shaped.

7. A quick-connect fixing device for PE water supply pipes according to claim 6, characterized in that: The upper surface of the support block (7) is in contact with the outer wall of the water supply pipe (2), and multiple ball bearings are rotatably installed on the upper surface of the support block (7).

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