Reinforced concrete steel socket pipe with high air tightness

Abstract

The utility model discloses a reinforced concrete steel socket pipe with high air tightness, which comprises a steel socket reinforced concrete pipe body, one end of the outer surface of the steel socket reinforced concrete pipe body is sleeved with a steel socket ring, the other end of the steel socket reinforced concrete pipe body is fixedly provided with a spigot ring, and the spigot ring can be inserted into the steel socket ring. An embedded ring groove is formed in the inner ring wall of the steel bell mouth ring, a polyurethane sealing ring is arranged in the embedded ring groove in a sleeved mode, the polyurethane sealing ring can abut against the PVC ring, and the PVC ring is installed on the outer surface of the spigot ring in a sleeved mode. Through the design of the polyurethane sealing rings and the PVC rings, the PVC rings can be better matched with the protruding polyurethane sealing rings through high-low arc-shaped arrangement, the sealing effect at the connector position is further improved, the sealing redundancy is increased through stacking of the multiple PVC rings, and the sealing effect is improved. And the situation of leakage caused by failure of single sealing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a reinforced concrete steel socket pipe with high air tightness. Background Technique

[0002] Reinforced concrete pipes are a kind of sewage pipes made of cement, steel bars, sand, stones, etc. and formed by centrifugal mixing. They are mainly used for the drainage tasks of urban rainwater, sewage or farmland irrigation. It is a non-excavation pipe jacking technology for municipal construction. The advantages are that it has little or no impact on the surrounding environment, requires a small construction site, and produces little noise.

[0003] For example, the patent with the national authorized patent publication number CN214245821U discloses a reinforced concrete steel socket pipe with relatively high sealing performance, including a first pipe body and a second pipe body. A plurality of second fixing blocks are fixedly arranged on the surface of one end of the second pipe body at equal intervals. A limiting groove is formed on the surface of the second fixing block, and a fixing groove is formed at the bottom end of the limiting groove. A plurality of first fixing blocks are fixedly arranged on the surface of one end of the first pipe body on one side of each second fixing block. One end of the first fixing block is rotatably connected with a reinforced concrete plate through a rotating shaft; through the designed first fixing block, second fixing block, connecting block, reinforced concrete plate, bolt, limiting groove, through hole, and fixing groove, the connection part between the first pipe body and the second pipe body can be strengthened to prevent it from breaking under the action of a large external force and increase the service life of the device. Through the designed steel plate, the strength of the reinforced concrete plate can be improved.

[0004] However, in the above-mentioned reinforced concrete steel socket pipe with relatively high sealing performance, the design involves multiple components such as fixing blocks, limiting grooves, bolts, and reinforced concrete plates. Each connection point and joint surface will become a weak point of air tightness leakage. If the assembly accuracy of these components is not high or errors occur during installation, fine gaps will be generated, resulting in gas leakage and thus affecting air tightness. Content of the Utility Model

[0005] The purpose of the utility model is to provide a reinforced concrete steel socket pipe with high air tightness, so as to solve the problem that each connection point and joint surface will become a weak point of air tightness leakage as mentioned in the above background technique. If the assembly accuracy of these components is not high or errors occur during installation, fine gaps will be generated, resulting in gas leakage and thus affecting air tightness.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A steel socketed reinforced concrete pipe with high airtightness, comprising: a steel socketed reinforced concrete pipe body, one end of the outer surface of the steel socketed reinforced concrete pipe body is sleeved and installed with a steel socket ring, and the other end of the steel socketed reinforced concrete pipe body is fixedly installed with a spigot ring, and the spigot ring can be inserted into the steel socket ring.

[0008] Preferably, an embedded ring groove is formed on the inner ring wall of the steel socket ring, a polyurethane sealing ring is sleeved in the embedded ring groove, the polyurethane sealing ring can be in contact with a PVC ring, and the PVC ring is sleeved and installed on the outer surface of the spigot ring.

[0009] Preferably, the inner ring surface of the polyurethane sealing ring is in a convex arc shape, and the outer surface of the spigot ring is provided with an inner concave arc shape, so that the three groups of PVC rings sleeved on the outer surface are arranged in a high-low-high pattern, so that the PVC rings can be fitted and in contact with the polyurethane sealing ring.

[0010] Preferably, a conical covering ring mouth is fixedly installed on the outer surface of the steel socketed reinforced concrete pipe body.

[0011] Preferably, when the conical covering ring mouth is inserted into the steel socket ring along with the spigot ring, it will cover and sleeve the outer surface of the steel socket ring together.

[0012] Preferably, the conical covering ring mouth can also enclose and cover the connection gap between the spigot ring and the steel socket ring.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. Through the design of the steel socket ring, the polyurethane sealing ring, the spigot ring, the PVC ring and the conical covering ring mouth, when two groups of steel socketed reinforced concrete pipe bodies are spliced, the spigot ring at one end of the steel socketed reinforced concrete pipe body can be inserted into the steel socket ring of the other group of steel socketed reinforced concrete pipe bodies. During the insertion process, the PVC ring sleeved on the outer surface of the spigot ring will contact the inner ring surface of the polyurethane sealing ring in the steel socket ring;

[0015] Among them, the spigot ring and the polyurethane sealing ring are respectively in an inner concave and convex arc shape, so that during the insertion process, the convex arc surface on the inner ring surface of the polyurethane sealing ring can be pressed and fitted with the concave arc surface on the spigot ring, and the PVC ring in the spigot ring will also contact the convex arc surface on the inner ring surface of the polyurethane sealing ring together, making the seal tighter. And the PVC rings are arranged in a high-low-high arc shape, which can better cooperate with the protruding polyurethane sealing ring, further improving the sealing effect at the interface, and the stacking of multiple PVC rings increases the redundancy of the seal, avoiding the occurrence of leakage caused by the failure of a single seal.

[0016] Among them, when the socket ring is inserted into the steel socket ring, it will drive the conical covering ring mouth fixedly installed on the outer surface to slide and cover the outer surface of the steel socket ring. At the same time, it can surround and cover the connection gap between the socket ring and the steel socket ring, reducing the exposure of the seal, thus effectively preventing external impurities such as sediment, dust, and moisture from entering the gap, further protecting the sealing ring, reducing the influence of environmental factors on the sealing effect, and the conical covering ring mouth can also bear external pressure and mechanical impact to a certain extent, improving the structural stability of the entire interface and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic diagram of the overall structure of the reinforced concrete steel socket pipe with high airtightness of the present utility model;

[0018] Figure 2 FIG. is a schematic diagram of the structure of the steel socket ring and the socket ring of the present utility model;

[0019] Figure 3 FIG. is a schematic diagram of the structure of the polyurethane sealing ring and the PVC ring of the present utility model;

[0020] Figure 4 FIG. is a schematic diagram of the structure in which the conical covering ring mouth of the present utility model covers the outer surface of the steel socket ring.

[0021] In the figure: 1, the steel socket reinforced concrete pipe body; 101, the steel socket ring; 102, the polyurethane sealing ring; 103, the socket ring; 104, the embedded ring groove; 105, the PVC ring; 2, the conical covering ring mouth. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 - 4 , the following technical solutions are provided in this embodiment:

[0024] As Figures 1 - 4 shown, a reinforced concrete steel socket pipe with high airtightness includes: a steel socket reinforced concrete pipe body 1, a steel socket ring 101 is sleeved and installed at one end of the outer surface of the steel socket reinforced concrete pipe body 1, and a socket ring 103 is fixedly installed at the other end of the steel socket reinforced concrete pipe body 1, and the socket ring 103 can be inserted into the steel socket ring 101.

[0025] An embedded ring groove 104 is provided on the inner wall of the steel socket ring 101. A polyurethane sealing ring 102 is sleeved in the embedded ring groove 104. The polyurethane sealing ring 102 can abut against the PVC ring 105. The PVC ring 105 is sleeved on the outer surface of the spigot ring 103.

[0026] The inner ring surface of the polyurethane sealing ring 102 is in a convex arc shape. The outer surface of the spigot ring 103 is provided with an inward concave arc shape, so that the three groups of PVC rings 105 sleeved on the outer surface are arranged in a high-low-high pattern, enabling the PVC rings 105 to fit and abut against the polyurethane sealing ring 102.

[0027] A conical covering ring mouth 2 is fixedly installed on the outer surface of the steel socket reinforced concrete pipe body 1.

[0028] When the spigot ring 103 is inserted into the steel socket ring 101, the conical covering ring mouth 2 will cover and sleeve the outer surface of the steel socket ring 101 together.

[0029] The conical covering ring mouth 2 can also enclose and cover the connection gap between the spigot ring 103 and the steel socket ring 101.

[0030] Through the design of the steel socket ring 101, the polyurethane sealing ring 102, the spigot ring 103, the PVC ring 105 and the conical covering ring mouth 2, when splicing two groups of steel socket reinforced concrete pipe bodies 1, the spigot ring 103 at one end of the steel socket reinforced concrete pipe body 1 can be inserted into the steel socket ring 101 of another group of steel socket reinforced concrete pipe bodies 1. During the insertion process, the PVC ring 105 sleeved on the outer surface of the spigot ring 103 will abut against the inner ring surface of the polyurethane sealing ring 102 in the steel socket ring 101;

[0031] Among them, the spigot ring 103 and the polyurethane sealing ring 102 are respectively in an inward concave and convex arc shape, so that during the insertion process, the convex arc surface on the inner ring surface of the polyurethane sealing ring 102 can be pressed and fitted against the concave arc surface on the spigot ring 103. And the PVC ring 105 in the spigot ring 103 will also abut against the convex arc surface on the inner ring surface of the polyurethane sealing ring 102 together, making the seal tighter. And the PVC rings 105 are arranged in a high-low-high arc shape, which can better cooperate with the convex-shaped polyurethane sealing ring 102, further improving the sealing effect at the interface. And the stacking of multiple PVC rings 105 increases the redundancy of the seal, avoiding the occurrence of leakage caused by the failure of a single seal.

[0032] Among them, when the socket ring 103 is inserted into the steel socket ring 101, it will drive the tapered covering ring mouth 2 fixedly installed on the outer surface to slide and cover the outer surface of the steel socket ring 101 together. At the same time, it can cover the connection gap between the socket ring 103 and the steel socket ring 101, reducing the exposure of the seal, thereby effectively preventing external impurities such as sediment, dust, and moisture from entering the gap, further protecting the sealing ring, reducing the influence of environmental factors on the sealing effect, and the tapered covering ring mouth 2 can also withstand external pressure and mechanical impact to a certain extent, improving the structural stability of the entire interface and extending the service life.

[0033] Summarize and sort out the working steps of this solution according to the above technical solution: When splicing two groups of steel socket reinforced concrete pipe bodies 1, the socket ring 103 at one end of the steel socket reinforced concrete pipe body 1 can be inserted into the steel socket ring 101 of another group of steel socket reinforced concrete pipe bodies 1. During the insertion process, the PVC ring 105 sleeved on the outer surface of the socket ring 103 will abut against the inner ring surface of the polyurethane sealing ring 102 in the steel socket ring 101. When the socket ring 103 is inserted into the steel socket ring 101, it will also drive the tapered covering ring mouth 2 fixedly installed on the outer surface to slide and cover the outer surface of the steel socket ring 101 together. At the same time, it can cover the connection gap between the socket ring 103 and the steel socket ring 101, reducing the exposure of the seal, thereby effectively preventing external impurities such as sediment, dust, and moisture from entering the gap, further protecting the sealing ring, and improving the structural stability of the entire interface and extending the service life.

[0034] In summary: By arranging the PVC rings 105 in an arc shape of high-low-high, it can better cooperate with the convex polyurethane sealing ring 102, further improving the sealing effect at the interface. The stacking of multiple PVC rings 105 increases the redundancy of the seal, avoiding leakage caused by the failure of a single seal.

[0035] Parts not involved in the present utility model are the same as or can be implemented using existing technologies. Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A reinforced concrete steel socket pipe with high airtightness, characterized in that, Including: A steel socket reinforced concrete pipe body (1). One end of the outer surface of the steel socket reinforced concrete pipe body (1) is sleeved and installed with a steel socket ring (101). The other end of the steel socket reinforced concrete pipe body (1) is fixedly installed with a spigot ring (103), and the spigot ring (103) can be inserted into the steel socket ring (101).

2. A reinforced concrete steel socket pipe with high airtightness according to claim 1, characterized in that: An embedded ring groove (104) is formed on the inner ring wall of the steel socket ring (101). A polyurethane sealing ring (102) is sleeved in the embedded ring groove (104). The polyurethane sealing ring (102) can be in contact with a PVC ring (105), and the PVC ring (105) is sleeved and installed on the outer surface of the spigot ring (103).

3. A reinforced concrete steel socket pipe with high airtightness according to claim 2, characterized in that: The inner ring surface of the polyurethane sealing ring (102) is in a convex arc shape. The outer surface of the spigot ring (103) is provided with an inward concave arc shape, so that the three groups of PVC rings (105) sleeved on the outer surface of the spigot ring (103) are arranged in a high-low-high pattern, enabling the PVC rings (105) to fit and contact with the polyurethane sealing ring (102).

4. A reinforced concrete steel socket pipe with high airtightness according to claim 1, characterized in that: A conical covering ring mouth (2) is fixedly installed on the outer surface of the steel socket reinforced concrete pipe body (1).

5. A reinforced concrete steel socket pipe with high airtightness according to claim 4, characterized in that: When the spigot ring (103) is inserted into the steel socket ring (101), the conical covering ring mouth (2) will cover and sleeve the outer surface of the steel socket ring (101) together.

6. A reinforced concrete steel socket pipe with high airtightness according to claim 5, characterized in that: The conical covering ring mouth (2) can also enclose and cover the connection gap between the spigot ring (103) and the steel socket ring (101).

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