Double-rubber-ring flexible connector reinforced concrete pipe and machining device thereof

By using double-ring flexible interface design and high-performance concrete at the reinforced concrete pipeline interface, the problem of water leakage in traditional pipelines is solved, achieving higher sealing and corrosion resistance.

CN222864388UActive Publication Date: 2025-05-13LIJIANG JIANPING CEMENT PROD CO LTD +2
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Patent Information

Application Number
CN202421766424.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-24
Publication Date
2025-05-13
Estimated Expiration
2034-07-24

AI Technical Summary

Technical Problem

Traditional reinforced concrete pipelines are prone to water leakage problems, including low interface accuracy, insufficient density, insufficient strength, poor acid and alkali corrosion resistance, and rough inner and outer walls.

Method used

The flexible interface design of double rubber rings is adopted. By setting two rubber rings at the pipe interface, the sealing effect of the rubber ring is used to improve the sealing performance of the joints. In addition, high-performance plastic concrete and optimized mold design ensure smooth and seamless inner walls of the pipe.

Benefits of technology

It effectively solves the problem of water leakage in traditional reinforced concrete pipelines, improves the sealing and corrosion resistance of the pipelines, and enhances the overall quality and service life of the pipelines.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of pipeline joint sealing, and discloses a double-rubber-ring flexible connector reinforced concrete pipe and a processing device thereof, the double-rubber-ring flexible connector reinforced concrete pipe comprises a pipeline body, one end of the pipeline body is provided with a bell mouth, and the other end of the pipeline body is provided with a spigot. When the spigot of one pipeline body is inserted into the socket of the other pipeline body, the outer side of the rubber ring is tightly connected with the inner side of the inner conical surface to play a sealing role, then a fixed inner mold production process is used, a chromium plating layer is additionally arranged on an inner mold to reduce demolding friction and adsorption, the pipe body is seamless, the external pressure load is increased, and the internal water pressure is improved. According to the utility model, the problem that the traditional reinforced concrete pipeline is easy to leak water is solved, the mold mounting time and the cleaning difficulty of a joint are reduced while the inner diameter size of the lifting pipe is accurate and the inner wall is smooth, so that the overall quality of the pipeline is greatly improved, and the production working difficulty and time are also reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of pipeline joint sealing, in particular to a double-rubber ring flexible interface reinforced concrete pipe and a processing device thereof. Background Art

[0002] The main sewage and drainage pipes on the market are: reinforced concrete pipes, PE pipes, steel corrugated pipes, etc. These pipes have their own advantages and disadvantages, but without exception, they all have leakage, which can easily lead to a large amount of leakage in the underground sewage pipe network and pollute the groundwater. The reasons for this are construction problems and defects in the pipes themselves. The leakage problem of traditional reinforced concrete pipes is common. The reasons are:

[0003] 1. Problems with the interface method. The interface precision is not high and it is easy to leak. 2. The use of dry hard concrete for pouring results in insufficient density and the pipe body is prone to leakage. 3. Insufficient strength. It cracks after excessive load and is prone to leakage. 4. The acid and alkali corrosion resistance is not strong. It is easy to be corroded and expose the reinforcement, which shortens the service life and is prone to leakage. 5. The inner and outer walls are rough, the water permeability is not strong, and it is easy to cause blockage. 6. Failure to construct according to specifications will cause leakage. Therefore, in order to ensure the quality of the project and meet environmental protection requirements, the construction unit would rather use ductile iron pipes, prestressed steel tube pipes and other water supply pressure pipes instead of sewage pipes, which not only increases the cost several times, but is also a typical waste of resources. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a double-rubber ring flexible interface reinforced concrete pipe and a processing device thereof, aiming to improve the problem that traditional reinforced concrete pipes are prone to water leakage.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double rubber ring flexible interface reinforced concrete pipe, comprising a pipe body, a hollow cavity is arranged in the middle of the pipe body, a socket is arranged at one end of the pipe body, a plug is arranged at the other end of the pipe body, an inner conical surface is arranged on the inner side of the socket, an outer conical surface is arranged on the outer side of the plug, and two rubber rings are arranged in the middle of the outer conical surface. When the plug of one pipe body is inserted into the socket of another pipe body, the outer side of the rubber ring is tightly connected to the inner side of the inner conical surface to play a sealing role.

[0006] As a further description of the above technical solution:

[0007] The inner edge of the socket is provided with a bearing guide surface, and the bottom of the pipe body is provided with a support platform.

[0008] As a further description of the above technical solution:

[0009] Two rubber ring grooves are arranged in the middle of the outer cone surface, the inner side of the rubber ring is connected to the rubber ring groove, and arc chamfers are arranged on both sides of the rubber ring groove.

[0010] As a further description of the above technical solution: the outer wall of the socket is provided with an inclined surface, and the angle between the inclined surface and the horizontal direction is 15°, the taper of the inner conical surface is 0.15-0.3, and the taper of the outer conical surface is 0.12-0.15.

[0011] A processing device for a double-rubber ring flexible interface reinforced concrete pipe is used to process the double-rubber ring flexible interface reinforced concrete pipe. The processing device includes an outer mold and an inner mold. The bottom of the outer mold is connected to the bottom mold through a handle lock device, the middle of the bottom mold is connected to the bottom of the inner mold, and the top of the outer mold is connected to the top of the inner mold through a blanking cone. The inner mold adopts an integrated inner mold and the surface is chrome-plated, and the outer mold adopts a Hough mold.

[0012] As a further description of the above technical solution:

[0013] The top of the outer mold is provided with a socket ring, and the top of the socket ring is connected to the outside of the blanking cone by bolts, the top of the outer mold is provided with an outer cone surface die on the inner side of the top of the outer mold, and two rubber ring convex rings are provided on the inner side of the outer cone surface die, and the rubber ring convex ring is used to make a rubber ring groove on the outside of the socket, and the top of the inner mold is provided with two inner mold top plates, and the top of the top inner mold top plate is fixedly connected with a clamping pad, and the upper part of the clamping pad is located below the middle part of the blanking cone, and the bottom of the inner mold is fixedly connected with two inner membrane bottom plates, and the inner membrane longitudinal rib plates are fixedly connected between the two inner membrane bottom plates and between the two inner mold top plates. The blanking cone is used to add double rubber ring flexible interface reinforced concrete pipe production raw materials between the inner mold and the outer mold. After the blanking cone is disassembled, the clamping nut can be pressed on the top of the clamping pad by using the external press component.

[0014] As a further description of the above technical solution:

[0015] The inner mold is a hollow cylindrical shape, the inner side of the top of the outer mold matches and complements the shape of the socket, a socket die is provided at the bottom of the outer mold, the outer side of the socket die has the same shape as the outer side of the socket, and the outer side of the top of the bottom mold has the same shape as the inner contact surface of the socket.

[0016] As a further description of the above technical solution:

[0017] The bottom of the bottom mold is connected to a support column, the bottom end of the support column is fixedly connected to the upper surface of the inner mold lifting plate, the lower surface of the inner mold lifting plate is connected to the output end of the jack, the bottom of the jack is connected to the ground, the bottom of the inner mold is fixedly connected to the upper surface of the inner mold support plate, the lower surface of the inner mold support plate is connected to a mold bracket, the bottom of the mold bracket is connected to an embedded part, and the jack is located inside the mold bracket as a whole.

[0018] As a further description of the above technical solution:

[0019] The inner wall of the mold bracket is fixedly connected to a limiting block, the upper surface of the limiting block can be connected to the lower surface of the inner mold lifting plate, the bottom of the mold bracket is fixedly connected to a bracket base plate, the middle part of the bracket base plate is fixed to the ground through embedded parts, and the top of the mold bracket is provided with a bolt hole, and the edge of the inner mold support plate is connected to the bolt hole on the top of the mold bracket through a support plate fixing nut.

[0020] As a further description of the above technical solution:

[0021] A clearance hole is arranged around the middle of the inner mold support plate, and the outer wall of the support column is slidably connected to the inner wall of the clearance hole.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, two rubber rings are arranged on the outer cone surface of the socket. The design of the double rubber rings can more effectively ensure the sealing of the joint during foundation settlement, thereby solving the problem of easy leakage of traditional reinforced concrete pipes.

[0024] 2. In the utility model, the inner mold fixing method is used for demoulding, and an integrated inner mold is adopted. The standard size and smoothness requirements of the inner wall of the pipe are largely guaranteed by lathe fine processing. The chrome plating of the mold surface increases the smoothness of the inner wall of the pipe, reduces the friction and adsorption force between the mold and the pipe body, and facilitates better demoulding, so that the inner wall of the double rubber ring flexible interface reinforced concrete pipe produced has no seams, and the seamless pipe body has greatly improved the internal water pressure test and external pressure load value.

[0025] 3. In the utility model, the inner mold fixing method is used, and the jacking force is used to first separate the pipe body and the outer mold from the inner mold, and then a crane is used for demoulding. While improving the accuracy of the inner diameter size of the pipe and the smoothness of the inner wall, it also reduces the mold installation time and the difficulty of cleaning the joints, greatly improving the overall quality of the pipeline and reducing the difficulty and time of production work. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a cross-sectional schematic diagram of a double rubber ring flexible interface reinforced concrete pipe proposed by the utility model;

[0027] Figure 2 This is a schematic longitudinal section diagram of a double rubber ring flexible joint reinforced concrete pipe proposed by the utility model;

[0028] Figure 3 This is a side view of a double rubber ring flexible joint reinforced concrete pipe proposed by the utility model;

[0029] Figure 4 A three-dimensional diagram of a double rubber ring flexible joint reinforced concrete pipe proposed by the utility model;

[0030] Figure 5 This is a schematic diagram of the rubber ring of a double rubber ring flexible interface reinforced concrete pipe proposed by the utility model;

[0031] Figure 6 This is a schematic diagram of the rubber ring groove of a double rubber ring flexible interface reinforced concrete pipe proposed by the utility model;

[0032] Figure 7 This is a cross-sectional view of the outer mold and inner mold of a processing device for a double-rubber ring flexible joint reinforced concrete pipe proposed by the utility model;

[0033] Figure 8 This is a cross-sectional view of the inner mold of a processing device for a double-rubber ring flexible joint reinforced concrete pipe proposed by the utility model;

[0034] Fig. 9 This is a schematic diagram of the initial state of the jack of a processing device for a double-rubber ring flexible joint reinforced concrete pipe proposed by the utility model;

[0035] Fig.10 A schematic diagram of a jack-lifting state of a processing device for a double-rubber ring flexible joint reinforced concrete pipe proposed by the utility model;

[0036] Fig.11 A schematic diagram of an inner mold support plate of a processing device for a double-rubber ring flexible joint reinforced concrete pipe proposed by the utility model;

[0037] Fig.12 This is a cross-sectional view of the inner mold lifting plate of a processing device for a double rubber ring flexible joint reinforced concrete pipe proposed by the utility model;

[0038] Fig.13 The utility model provides a top view of the inner mold lifting plate of a processing device for a double rubber ring flexible joint reinforced concrete pipe.

[0039] Legend:

[0040] 1. Pipe body; 101. Socket; 102. Socket; 103. Inner cone; 104. Hollow cavity; 105. Rubber ring groove; 106. Outer cone; 107. Guide surface; 108. Cap; 2. Rubber ring; 3. Feeding cone; 4. Socket ring; 5. Outer mold; 501. Rubber ring convex ring; 502. Outer cone die; 503. Socket die; 6. Inner mold; 601. Inner mold top plate ; 602, inner membrane bottom plate; 603, inner membrane longitudinal rib plate; 7, clamping pad; 8, handle locking device; 9, bottom mold; 901, inner cone surface pressing mold; 10, clamping nut; 11, inner mold support plate; 111, support plate fixing nut; 112, clearance hole; 12, inner mold lifting plate; 121, support column; 13, mold bracket; 131, bracket bottom plate; 132, limit block; 14, jack. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] Embodiment 1:

[0043] Reference Figure 1-Figure 6 The utility model provides an embodiment: a double rubber ring flexible interface reinforced concrete pipe, including a pipe body 1, a hollow cavity 104 is arranged in the middle of the pipe body 1, a socket 101 is arranged at one end of the pipe body 1, and a plug 102 is arranged at the other end of the pipe body 1. The inner side of the socket 101 is provided with an inner cone surface 103, and the outer side of the plug 102 is provided with an outer cone surface 106. Two rubber rings 2 are arranged in the middle of the outer cone surface 106. When the plug 102 of one pipe body 1 is inserted into the socket 101 of another pipe body 1, the outer side of the rubber ring 2 is tightly connected to the inner side of the inner cone surface 103 to play a sealing role.

[0044] The existing socket 102 has no rubber ring groove. The outer cone 106 of the socket 102 of the utility model is provided with two rubber rings 2. The design of the double rubber rings can more effectively ensure the sealing of the joint during foundation settlement, thereby solving the problem of easy leakage of traditional reinforced concrete pipes.

[0045] Using high-performance plastic concrete to improve the density and impermeability of concrete, enhance the appearance quality and inner wall smoothness to ensure water-permeable performance, making the visual experience more beautiful.

[0046] The use of internal and external mold assembly production and pneumatic high-frequency vertical vibration production makes high precision and high quality easier to control in production;

[0047] It is produced with high-performance concrete of C60 or above to improve the acid and alkali resistance.

[0048] The resistance to chloride ion penetration reaches 810C, and the resistance to sulfate erosion reaches KS120, which greatly improves the corrosion resistance. The anti-seepage grade reaches P12, which greatly improves the anti-seepage performance of reinforced concrete pipes (the internal water pressure test reaches 0.3Mpa, and if there are special requirements for the pipeline, the maximum can reach 0.6Mpa without obvious tide pieces), and improves the strength.

[0049] The utility model improves technical problems such as rough pipeline appearance, inaccurate interface size, poor compactness, and poor installation stability, and achieves the following advantages: 1. High-performance concrete; 2. High strength; 3. High-precision interface; 4. High impermeability; 5. High acid and alkali resistance; 6. Smooth inner and outer walls and high water permeability.

[0050] In one embodiment, a guide surface 107 is provided at the inner edge of the socket 101, and a support platform 108 is provided at the bottom of the pipe body 1. The guide surface 107 is designed to facilitate the insertion of the socket 102 of one pipe body 1 into the socket 101 of another pipe body 1, and the installation is convenient. The design of the support platform 108 facilitates the installation of the pipe body 1 firmly and is not easy to roll.

[0051] Two rubber ring grooves 105 are provided in the middle of the outer cone surface 106. The inner side of the rubber ring 2 is connected to the rubber ring groove 105. Both sides of the rubber ring groove 105 are provided with arc chamfers. In one embodiment, the radius of the rubber ring groove 105 is 10 mm, and the radius of the arc chamfer is 2 mm. The design of the rubber ring groove 105 facilitates the installation of the rubber ring 2, so that the rubber ring 2 is in a fixed position when installing the sliding seal.

[0052] In one embodiment, the outer wall of the socket 101 is provided with an inclined surface, and the angle between the inclined surface and the horizontal direction is 15°.

[0053] The taper of the inner cone surface 103 is 0.15-0.3, and the taper of the outer cone surface 106 is 0.12-0.15.

[0054] The taper is the ratio of the difference in diameter between the upper and lower base circles to the height of the frustum.

[0055] The calculation formula for taper: C = (Dd) / L.

[0056] Among them, C represents the taper ratio, D represents the large end diameter, d represents the small end diameter, and L represents the length of the taper.

[0057] The diameter of the large end of the inner cone surface 103 is 405 mm, the diameter of the small end of the inner cone surface 103 is 385 mm, and the vertical height of the inner cone surface 103 is 134 mm.

[0058] The outer cone 106 has a large end diameter of 395 mm, a small end diameter of 375 mm, and a vertical height of 150.5 mm.

[0059] On the basis of the original standard, the length of the inner conical surface 103 in the socket 101 is increased.

[0060] At the same time, a double rubber ring sealing form is adopted, and the taper is optimized so that the double rubber rings are subjected to force at the same time, which further improves the sealing effect.

[0061] Compared with traditional cement pipes, the advantages of the double rubber ring flexible interface reinforced concrete pipe of the utility model are shown in Table 1.

[0062] Table 1:

[0063]

[0064] Embodiment 2:

[0065] refer to Figure 7 and Figure 8 The processing device of the double rubber ring flexible interface reinforced concrete pipe of this embodiment is used to process the double rubber ring flexible interface reinforced concrete pipe of the above-mentioned embodiment 1. The processing device is a processing mold for the double rubber ring flexible interface reinforced concrete pipe, including an outer mold 5 and an inner mold 6. The bottom of the outer mold 5 is connected to the bottom mold 9 through a handle lock device 8. The middle part of the bottom mold 9 is connected to the bottom of the inner mold 6. The top of the outer mold 5 is connected to the top of the inner mold 6 through a blanking cone 3. The surfaces of the inner mold 6, the outer mold 5 and the bottom mold 9 are provided with a chrome-plated layer. The inner mold 6 adopts an integrated inner mold and the surface is chrome-plated. The outer mold 5 adopts a half mold.

[0066] The blanking cone 3 is used to add double rubber ring flexible interface reinforced concrete pipe molding raw materials between the outer mold 5 and the inner mold 6. The raw materials are high-performance plastic concrete. After the raw materials are added, a vertical vibration form is used to vibrate the outer wall of the outer mold 5 using a vibration device to produce and process the double rubber ring flexible interface reinforced concrete pipe of the above embodiment.

[0067] The top of the outer mold 5 is provided with a socket ring 4, and the top of the socket ring 4 is connected to the outside of the blanking cone 3 by bolts. The socket ring 4 and the blanking cone 3 are connected by bolts, which is convenient for installing and removing the blanking cone 3. The inner side of the top of the outer mold 5 is provided with an outer cone surface die 502, and the inner side of the outer cone surface die 502 is provided with two rubber ring convex rings 501. The rubber ring convex ring 501 is used to make the outer side of the socket 102 produce a rubber ring groove 105. The top of the inner mold 6 is provided with two inner mold top plates 601. A clamping pad 7 is fixedly connected to the top, and the upper part of the clamping pad 7 is located below the middle part of the blanking cone 3. Two inner mold bottom plates 602 are fixedly connected to the bottom of the inner mold 6. Inner membrane longitudinal ribs 603 are fixedly connected between the two inner membrane bottom plates 602 and between the two inner mold top plates 601. The blanking cone 3 is used to add double rubber ring flexible interface reinforced concrete pipe production materials between the inner mold 6 and the outer mold 5. After the blanking cone 3 is disassembled, the clamping nut 10 can be pressed against the top of the clamping pad 7 by using the external press component.

[0068] Specifically, the inner mold 6 is a hollow cylindrical shape, the inner side of the top of the outer mold 5 matches and complements the shape of the socket 102, the bottom of the outer mold 5 is provided with a socket die 503, the outer side of the socket die 503 is in the same shape as the outer side of the socket 101, and the top of the bottom mold 9 is provided with an inner cone die 901, the outer side of the inner cone die 901 is in the same shape as the inner contact surface of the socket 101. Through the above design, the double rubber ring flexible interface reinforced concrete pipe of the above embodiment 1 can be processed by the processing device.

[0069] Embodiment 3:

[0070] refer to Figure 9-13 , a processing device for a double-rubber ring flexible interface reinforced concrete pipe, the processing device is the demoulding device for processing the mold in the above-mentioned embodiment 2, including an inner mold lifting plate 12 and a jack 14, etc., the bottom of the bottom mold 9 is connected with a support column 121, the bottom end of the support column 121 is fixedly connected to the upper surface of the inner mold lifting plate 12, the lower surface of the inner mold lifting plate 12 is connected to the output end of the jack 14, the bottom of the jack 14 is connected to the ground, the bottom of the inner mold 6 is fixedly connected to the upper surface of the inner mold support plate 11, the lower surface of the inner mold support plate 11 is connected with a mold bracket 13, the bottom of the mold bracket 13 is connected with an embedded part, and the jack 14 is located inside the mold bracket 13 as a whole.

[0071] The mold bracket 13 is fixed on the ground, and the inner mold support plate 11 is fixed to the inner mold 6. When demolding, the inner mold lifting plate 12 and the support column 121 are lifted by the jack 14, thereby driving the bottom mold 9 and the outer mold 5 to rise at the same time, so that the double rubber ring flexible interface reinforced concrete pipe is separated from the inner mold 6 and then demolded by a crane.

[0072] Among them, the outer mold 5 adopts the half mold structure, and the inner mold 6 is integrally machined and then chrome-plated to ensure a smooth surface. After the mold is poured, the bottom mold 9 is first supported by a jack 14, and the bottom mold 9 with the double rubber ring flexible interface reinforced concrete pipe and the outer mold 5 is lifted up 10 cm, and then lifted by a crane, and then the outer mold 5 is removed.

[0073] The traditional technology uses vertical vibration production process molds, and the demoulding method for the inner and outer molds is the movable inner mold. The inner diameter size standard and smoothness of the pipeline cannot meet the requirements, especially the problem of joint leakage is inevitable. Moreover, the demoulding of small-diameter pipelines using movable inner molds is particularly difficult and requires particularly high requirements during mold making. Moreover, it is easy to deform over time, and the joint leakage problem is even more difficult to solve.

[0074] The processing mold of the double rubber ring flexible interface reinforced concrete pipe of the utility model adopts an integrated inner mold, and the standard size and smoothness requirements of the inner wall of the pipe are largely guaranteed by lathe fine processing. The chrome plating on the surface of the processing mold increases the smoothness of the inner wall of the pipe, reduces the friction and adsorption force between the mold and the pipe body, and facilitates better demoulding. The demoulding device and the structural form of the processing mold of the utility model make the inner wall of the produced double rubber ring flexible interface reinforced concrete pipe without seams, and the seamless pipe body has greatly improved the internal water pressure test and external pressure load value.

[0075] The processing mold adopts vertical vibration form and vertical demoulding. When the inner mold has no shrinkage interface, the jacking force is used to first separate the pipe body, the outer mold and the inner mold, and then the demoulding is carried out by a crane. The utility model improves the inner diameter of the pipe accurately and the inner wall is smooth, while also reducing the mold installation time and the difficulty of cleaning the joints, thereby greatly improving the overall quality of the pipeline and reducing the difficulty and time of production work.

[0076] In one embodiment, the inner wall of the mold bracket 13 is fixedly connected to a limiting block 132, and the upper surface of the limiting block 132 can be connected to the lower surface of the inner mold lifting plate 12, which plays a role of limiting and supporting. The bottom of the mold bracket 13 is fixedly connected to a bracket bottom plate 131, and the middle part of the bracket bottom plate 131 is fixed to the ground through embedded parts. The top of the mold bracket 13 is provided with a bolt hole, and the edge of the inner mold support plate 11 is connected to the bolt hole at the top of the mold bracket 13 through a support plate fixing nut 111. The middle part of the inner mold support plate 11 is fixed to the inner mold bottom plate 601 at the bottom end of the inner mold 6, and then the inner mold support plate 11 is fixed to the mold bracket 13 using the support plate fixing nut 111 to achieve the fixation of the inner mold 6.

[0077] A clearance hole 112 is arranged around the middle of the inner mold support plate 11, and the outer wall of the support column 121 is slidably connected to the inner wall of the clearance hole 112. The design of the clearance hole 112 facilitates the support column 121 to pass through the clearance hole 112 and connect to the lower surface of the bottom mold 9, so that the jack 14 can lift the bottom mold 9 and the outer mold 5.

[0078] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can 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 should be included in the protection scope of the present invention.

Claims

1. A double rubber ring flexible joint reinforced concrete pipe, comprising a pipe body (1), a hollow cavity (104) is arranged in the middle of the pipe body (1), and is characterized in that: One end of the pipe body (1) is provided with a socket (101), and the other end of the pipe body (1) is provided with a plug (102); the inner side of the socket (101) is provided with an inner conical surface (103), and the outer side of the plug (102) is provided with an outer conical surface (106); two rubber rings (2) are provided in the middle of the outer conical surface (106); when the plug (102) of one pipe body (1) is inserted into the socket (101) of another pipe body (1), the outer side of the rubber ring (2) is tightly connected to the inner side of the inner conical surface (103) to play a sealing role.

2. A double rubber ring flexible joint reinforced concrete pipe according to claim 1, characterized in that: The inner edge of the socket (101) is provided with a guide surface (107), and the bottom of the pipe body (1) is provided with a support platform (108).

3. A double rubber ring flexible joint reinforced concrete pipe according to claim 1, characterized in that: Two rubber ring grooves (105) are arranged in the middle of the outer conical surface (106), the inner side of the rubber ring (2) is connected to the rubber ring groove (105), and arc chamfers are arranged on both sides of the rubber ring groove (105).

4. A double rubber ring flexible joint reinforced concrete pipe according to claim 1, characterized in that: The outer wall of the socket (101) is provided with an inclined surface, the taper of the inner conical surface (103) is 0.15-0.3, and the taper of the outer conical surface (106) is 0.12-0.

15.

5. A processing device for a double rubber ring flexible joint reinforced concrete pipe, characterized in that: Used for processing the double rubber ring flexible interface reinforced concrete pipe as described in any one of claims 1 to 4, the processing device comprises an outer mold (5) and an inner mold (6), the bottom of the outer mold (5) is connected to the bottom mold (9) through a handle lock device (8), the middle part of the bottom mold (9) is connected to the bottom of the inner mold (6), the top of the outer mold (5) is connected to the top of the inner mold (6) through a blanking cone (3), the inner mold (6) adopts an integrated inner mold and the surface is chrome-plated, and the outer mold (5) adopts a half mold.

6. The processing device for a double rubber ring flexible joint reinforced concrete pipe according to claim 5 is characterized in that: The top of the outer mold (5) is provided with a socket ring (4), the top of the socket ring (4) is connected to the outside of the blanking cone (3) by bolts, the inner side of the top of the outer mold (5) is provided with an outer cone surface die (502), the inner side of the outer cone surface die (502) is provided with two rubber ring convex rings (501), the rubber ring convex rings (501) are used to generate rubber ring grooves (105) on the outside of the socket (102), the top of the inner mold (6) is provided with two inner mold top plates (601), the top of the inner mold top plate (601) is fixedly connected with a compression pad ( 7), the upper part of the clamping pad (7) is located below the middle part of the unloading cone (3), the bottom of the inner mold (6) is fixedly connected with two inner membrane bottom plates (602), and the inner membrane longitudinal rib plates (603) are fixedly connected between the two inner membrane bottom plates (602) and between the two inner mold top plates (601), and the unloading cone (3) is used to add double rubber ring flexible interface reinforced concrete pipe production materials between the inner mold (6) and the outer mold (5). After the unloading cone (3) is disassembled, the clamping nut (10) can be pressed against the top of the clamping pad (7) by using the external press component.

7. The processing device for a double rubber ring flexible joint reinforced concrete pipe according to claim 5 is characterized by: The inner mold (6) is in the shape of a hollow cylinder. The inner side of the top of the outer mold (5) matches and complements the shape of the socket (102). The bottom of the outer mold (5) is provided with a socket die (503). The outer side of the socket die (503) has the same shape as the outer side of the socket (101). The outer side of the top of the bottom mold (9) has the same shape as the inner contact surface of the socket (101). The surfaces of the inner mold (6), the outer mold (5) and the bottom mold (9) are provided with a chrome-plated layer.

8. A processing device for a double rubber ring flexible joint reinforced concrete pipe according to any one of claims 5 to 7, characterized in that: The bottom of the bottom mold (9) is connected to a support column (121), the bottom end of the support column (121) is fixedly connected to the upper surface of the inner mold lifting plate (12), the lower surface of the inner mold lifting plate (12) is connected to the output end of the jack (14), the bottom of the jack (14) is connected to the ground, the bottom of the inner mold (6) is fixedly connected to the upper surface of the inner mold support plate (11), the lower surface of the inner mold support plate (11) is connected to a mold bracket (13), the bottom of the mold bracket (13) is connected to an embedded part, and the jack (14) is located inside the mold bracket (13) as a whole.

9. The processing device for a double rubber ring flexible joint reinforced concrete pipe according to claim 8, characterized in that: The inner wall of the mold bracket (13) is fixedly connected to a limit block (132), the upper surface of the limit block (132) can be connected to the lower surface of the inner mold lifting plate (12), the bottom of the mold bracket (13) is fixedly connected to a bracket bottom plate (131), the middle part of the bracket bottom plate (131) is fixed to the ground through embedded parts, the top of the mold bracket (13) is provided with a bolt hole, and the edge of the inner mold support plate (11) is connected to the bolt hole at the top of the mold bracket (13) through a support plate fixing nut (111).

10. The processing device for a double rubber ring flexible joint reinforced concrete pipe according to claim 8, characterized in that: A clearance hole (112) is arranged around the middle of the inner mold support plate (11), and the outer wall of the support column (121) is slidably connected to the inner wall of the clearance hole (112).