U-shaped anti-crystallization sealer for railway tunnel

Abstract

The utility model discloses a railway tunnel U-shaped anti-crystallization sealer which comprises a PVC pipe embedded in concrete, one end of the PVC pipe is provided with an internal thread connector, one end, away from the PVC pipe, of the internal thread connector is provided with an external thread connector, one end, away from the internal thread connector, of the external thread connector is provided with a spiral ring, and the other end of the external thread connector is provided with an external thread connector. An external thread connecting piece is arranged at the end, away from the external thread connecting piece, of the spiral ring, an internal thread connecting piece is arranged at the end, away from the spiral ring, of the internal thread connecting piece, an L-shaped pipe fitting is arranged at the end, away from the spiral ring, of the internal thread connecting piece, and a U-shaped pipe fitting is connected to the end, away from the internal thread connecting piece, of the L-shaped pipe fitting. After the PVC pipe fitting is pre-embedded, the external thread connecting piece is directly connected through the internal thread, the spiral ring is connected with the L-shaped pipe fitting through the internal thread connecting piece, the sealing ring is placed into the spiral ring, the spiral ring is rotated, and then the L-shaped pipe fitting and the U-shaped pipe fitting can be quickly assembled on the PVC pipe fitting, so that connection and combination are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of water pipe anti-crystallization, in particular to a U-shaped anti-crystallization sealer for a railway tunnel. Background Art

[0002] During the laying of water pipes in underground projects of some construction projects, due to the large amount of impurities in the drainage pipes, some annular blind pipes are easily blocked by crystalline substances such as calcium carbonate, which then causes damage to the water pipe system of the underground project or tunnel project. In order to avoid the occurrence of crystallization, a U-shaped anti-crystallization sealer is used. The U-shaped pipe is used to isolate the entry of air generated by crystallization. The connected U-shaped pipe will be connected to the pipes pre-buried in the concrete structure.

[0003] After searching, for example, Chinese patent document CN211716007U discloses a U-shaped pipe with a sealing head and a threaded interface. When in use, the liquid accumulated at the turning point of the U-shaped pipe isolates the outside air from entering, thereby preventing crystal growth in the pipe. However, the following defects still exist:

[0004] When the above-mentioned railway tunnel U-shaped anti-crystallization sealer is used, it is not convenient and quick enough when installing and connecting the U-shaped pipe, and there is no sealing connection structure at the connection to avoid water leakage at the connection. Utility Model Content

[0005] The purpose of the utility model is to provide a U-shaped anti-crystallization sealer for a railway tunnel to solve the problem that the U-shaped anti-crystallization sealer for a railway tunnel proposed in the above-mentioned background technology is not convenient and quick enough when installing and connecting the U-shaped pipe, and there is no sealing connection structure at the connection to avoid water leakage at the connection.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a U-shaped anti-crystallization sealer for a railway tunnel, comprising a PVC pipe fitting pre-buried in concrete, one end of the PVC pipe fitting being provided with an inner thread, one end of the inner thread away from the PVC pipe fitting being provided with an outer thread connector, one end of the outer thread connector away from the inner thread being provided with a spiral coil, one end of the spiral coil away from the outer thread connector being provided with an inner thread connector, one end of the inner thread connector away from the spiral coil being provided with an L-shaped pipe fitting, and one end of the L-shaped pipe fitting away from the inner thread connector being connected to the U-shaped pipe fitting;

[0007] The outer thread connector (3), the screw coil (5) and the inner thread connector (6) are combined to form a sealing connector mechanism.

[0008] Preferably, the inner thread is directly fixedly connected to the PVC pipe fitting, a threaded structure is provided on the inner side of one end of the inner thread directly away from the PVC pipe fitting, and a plug is also provided on the end of the inner thread directly away from the PVC pipe fitting.

[0009] Preferably, the end of the outer thread connector close to the inner thread is provided with a thread structure matching the inner side of the inner thread, and the surface of the end of the outer thread connector close to the inner thread connector is also provided with a thread structure.

[0010] Preferably, a sealing ring is provided at one end of the external thread connector close to the spiral coil, and a placement groove is provided at the connection between the sealing ring and the external thread connector.

[0011] Preferably, the inner side of the coil is provided with a threaded structure that matches the surface of one end of the coil close to the external thread connector, and a first retaining ring with a circular structure is fixed to the end of the coil away from the external thread connector, and the maximum inner diameter of the first retaining ring is smaller than the inner diameter of the coil.

[0012] Preferably, a second clamping ring is fixed to one end of the inner thread connector close to the spiral coil, and the maximum diameter of the second clamping ring is consistent with the diameter of the inner side of the spiral coil.

[0013] Preferably, a front end outer thread is fixed to one end of the L-shaped pipe fitting close to the inner thread connector, and the front end outer thread is connected to the inner thread of the inner thread connector.

[0014] Preferably, an elastic baffle is also provided on a side of the adjusting block away from the glass cutter housing, and the elastic baffle is rotatably connected to the glass cutter housing.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] Through the sealing connector mechanism composed of the outer thread connector, the sealing ring, the spiral ring and the inner thread connector, after the PVC pipe fittings are pre-buried, the outer thread connector can be directly connected through the inner thread, and after the spiral ring is connected to the L-shaped pipe fitting through the inner thread connector, the sealing ring can be inserted and the spiral ring can be rotated, so that the L-shaped pipe fitting and the U-shaped pipe fitting can be quickly assembled to the PVC pipe fitting, which is convenient for connection and combination. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the combined structure of the inner thread and the spiral coil in the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the direct combination of the outer thread connector and the inner thread in the utility model;

[0021] Figure 5It is a schematic diagram of the structure after the utility model is connected and combined.

[0022] In the figure: 1, PVC pipe fitting; 2, internal thread directly; 201, plug; 3, external thread connector; 301, placement groove; 4, sealing ring; 5, screw ring; 501, first clamp ring; 6, internal thread connector; 601, second clamp ring; 7, L-shaped pipe fitting; 701, front end external thread; 8, U-shaped pipe fitting. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] Example 1, please refer to Figure 1-5 The utility model provides a U-shaped anti-crystallization sealer for a railway tunnel, comprising a PVC pipe fitting 1 pre-buried in concrete, an inner thread 2, a plug 201, an outer thread connector 3, a placement groove 301, a sealing ring 4, a spiral ring 5, a first clamping ring 501, an inner thread connector 6, a second clamping ring 601, an L-shaped pipe fitting 7, a front outer thread 701, and a U-shaped pipe fitting 8. An inner thread 2 is provided at one end of the PVC pipe fitting 1, and the inner thread 2 is fixedly connected to the PVC pipe fitting 1. A threaded structure is provided on the inner side of the end of the inner thread 2 away from the PVC pipe fitting 1, and a plug 201 is also provided at the end of the inner thread 2 away from the PVC pipe fitting 1. The plug 201 provided can seal the inside of the PVC pipe fitting 1.

[0025] Specifically, Figure 2 , Figure 3 and Figure 4 As shown, the end of the inner thread 2 away from the PVC pipe fitting 1 is provided with an outer thread connector 3, and the end of the outer thread connector 3 close to the inner thread 2 is provided with a thread structure that matches the inner side of the inner thread 2, and the surface of the end of the outer thread connector 3 close to the inner thread connector 6 is also provided with a thread structure, so that the outer thread connector 3 and the inner thread 2 can be connected and combined by rotation;

[0026] A sealing ring 4 is arranged at one end of the external thread connector 3 close to the spiral ring 5, and a placement groove 301 is provided at the connection between the sealing ring 4 and the external thread connector 3, so that the sealing ring 4 can be easily positioned and assembled, so that the sealing connector mechanism has better sealing performance;

[0027] Specifically, Figure 2 , Figure 4 and Figure 5As shown, the end of the outer thread connector 3 away from the inner thread connector 2 is provided with a spiral coil 5, and the inner side of the spiral coil 5 is provided with a thread structure that matches the surface of the outer thread connector 3 close to the spiral coil 5, and the end of the spiral coil 5 away from the outer thread connector 3 is fixed with a first clamping ring 501 of a circular ring structure, and the maximum inner diameter of the first clamping ring 501 is smaller than the inner diameter of the spiral coil 5. The first clamping ring 501 can be mutually sleeved and engaged with the inner thread connector 6, so that the spiral coil 5 can be rotated on the inner thread connector 6 conveniently;

[0028] The end of the spiral coil 5 away from the outer thread connector 3 is provided with an inner thread connector 6, and the end of the inner thread connector 6 close to the spiral coil 5 is fixed with a second clamping ring 601, and the maximum diameter of the second clamping ring 601 is consistent with the diameter of the inner side of the spiral coil 5. The second clamping ring 601 allows the spiral coil 5 to be sleeved on the inner thread connector 6 for rotation, which facilitates the rotation of the spiral coil 5 to drive the inner thread connector 6 to connect with the outer thread connector 3;

[0029] Specifically, Figure 3 and Figure 4 As shown, the end of the inner thread connector 6 away from the spiral coil 5 is provided with an L-shaped pipe fitting 7, and the end of the L-shaped pipe fitting 7 close to the inner thread connector 6 is fixed with a front end outer thread 701, and the front end outer thread 701 is connected with the internal thread of the inner thread connector 6, and the inner thread connector 6 is connected through the provided front end outer thread 701;

[0030] The end of the L-shaped pipe fitting 7 away from the internal thread connector 6 is connected to a U-shaped pipe fitting 8, and the U-shaped pipe fitting 8 and the L-shaped pipe fitting 7 are bonded together with glue, which facilitates the quick pre-connection combination of the U-shaped pipe fitting 8 and the L-shaped pipe fitting 7. The external thread connector 3, the spiral ring 5, and the internal thread connector 6 form a sealing connector mechanism. The set sealing connector mechanism can facilitate the quick installation and combination of the L-shaped pipe fitting 7 and the U-shaped pipe fitting 8.

[0031] When the embodiment of the present application is used: the PVC pipe fitting 1 is pre-buried in the concrete wall, and then the inner thread 2 is fixed. When not in use, the plug 201 can be inserted to close one end of the PVC pipe fitting 1. When connected for use, the plug 201 is removed, and the outer thread connector 3 is rotatably connected to the inner thread 2;

[0032] Then use glue to fix the L-shaped pipe fitting 7 and the U-shaped pipe fitting 8 on the outside, and then pass the inner thread connector 6 through the spiral ring 5 and connect it to the front end outer thread 701 of the L-shaped pipe fitting 7, so that the spiral ring 5 will be fixed at one end of the L-shaped pipe fitting 7 and can be rotated, and then the outer thread connector 3 is directly connected to the inner thread 2 by rotation, and then the sealing ring 4 is placed in the placement groove 301, and then the spiral ring 5 on the L-shaped pipe fitting 7 is rotated, and the spiral ring 5 can be connected to the outer thread connector 3 to complete the assembly of the L-shaped pipe fitting 7, the front end outer thread 701, the U-shaped pipe fitting 8 and the PVC pipe fitting 1, and the sealing ring 4 can increase the sealing of the connection between the spiral ring 5 and the outer thread connector 3, and then the U-shaped pipe fitting 8 is set to play an anti-crystallization role, and then the outer thread connector can also be used. 3. The sealing connector composed of the sealing ring 4, the screw ring 5 and the internal thread connector 6 facilitates the rapid installation of the U-shaped pipe fitting 8, so that the U-shaped anti-crystallization sealer for the railway tunnel is ready. It should be noted that the utility model is a U-shaped anti-crystallization sealer for a railway tunnel. The components are all universal standard components or components known to technical personnel in this field. The structure and principle thereof can be known to technical personnel in this field through technical manuals or through conventional experimental methods. In the idle part of the device, all the above-mentioned electrical components, which refer to power elements, electrical components, and adapted monitoring computers and power supplies, are connected through wires. The specific connection means should refer to the above-mentioned working principle. The electrical connection is completed in the working order of each electrical component. The detailed connection means are well-known technologies in the art.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A U-shaped anti-crystallization sealer for a railway tunnel, comprising a PVC pipe (1) embedded in concrete, characterized in that: One end of the PVC pipe fitting (1) is provided with an inner thread connection (2), the end of the inner thread connection (2) away from the PVC pipe fitting (1) is provided with an outer thread connection piece (3), the end of the outer thread connection piece (3) away from the inner thread connection (2) is provided with a spiral coil (5), the end of the spiral coil (5) away from the outer thread connection piece (3) is provided with an inner thread connection piece (6), the end of the inner thread connection piece (6) away from the spiral coil (5) is provided with an L-shaped pipe fitting (7), and the end of the L-shaped pipe fitting (7) away from the inner thread connection piece (6) is connected to a U-shaped pipe fitting (8); The outer thread connector (3), the screw coil (5) and the inner thread connector (6) are combined to form a sealing connector mechanism.

2. The U-shaped anti-crystallization sealer for railway tunnel according to claim 1, characterized in that: The inner thread (2) is fixedly connected to the PVC pipe fitting (1); a threaded structure is provided on the inner side of one end of the inner thread (2) away from the PVC pipe fitting (1); and a plug (201) is also provided on the end of the inner thread (2) away from the PVC pipe fitting (1).

3. The U-shaped anti-crystallization sealer for railway tunnel according to claim 1, characterized in that: One end of the outer thread connector (3) close to the inner thread connector (2) is provided with a thread structure that matches the inner side of the inner thread connector (2), and one end surface of the outer thread connector (3) close to the inner thread connector (6) is also provided with a thread structure.

4. The U-shaped anti-crystallization sealer for railway tunnel according to claim 1, characterized in that: A sealing ring (4) is provided at one end of the external thread connector (3) close to the spiral coil (5), and a placement groove (301) is provided at the connection between the sealing ring (4) and the external thread connector (3).

5. The U-shaped anti-crystallization sealer for railway tunnel according to claim 1, characterized in that: The inner side of the spiral coil (5) is provided with a thread structure that matches the surface of one end of the external thread connector (3) close to the spiral coil (5), and a first clamping ring (501) of a circular ring structure is fixed to one end of the spiral coil (5) away from the external thread connector (3), and the maximum inner diameter of the first clamping ring (501) is smaller than the inner diameter of the spiral coil (5).

6. The U-shaped anti-crystallization sealer for railway tunnel according to claim 1, characterized in that: A second clamping ring (601) is fixed to one end of the inner thread connector (6) close to the spiral coil (5), and the maximum diameter of the second clamping ring (601) is consistent with the diameter of the inner side of the spiral coil (5).

7. The U-shaped anti-crystallization sealer for railway tunnel according to claim 1, characterized in that: A front end outer thread (701) is fixed to one end of the L-shaped pipe fitting (7) close to the inner thread connector (6), and the front end outer thread (701) is connected to the inner thread of the inner thread connector (6).

8. The U-shaped anti-crystallization sealer for railway tunnel according to claim 1, characterized in that: The U-shaped pipe fitting (8) and the L-shaped pipe fitting (7) are connected by gluing.

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