A precast concrete drain pressure test installation structure

Abstract

The application provides a precast concrete drainage pipe pressure test installation structure, which comprises two flanges, a drainage pipe arranged between the two flanges, a base plate, an annular plate, a cylinder arranged between the base plate and the annular plate, and a reinforcing assembly; a water passing hole is arranged in the middle of the base plate; the flange further comprises a plurality of pin barrels, each of which penetrates the base plate and the annular plate; a first sealing cylinder and a rubber pad one are arranged on the base plate of the lower flange, and the bottom end of the drainage pipe is provided with a first annular notch; a second sealing cylinder is arranged on the base plate of the upper flange, the top end of the drainage pipe is provided with a second annular notch corresponding to the second sealing cylinder, and the second annular notch is provided with a rubber pad two; a plurality of connecting rods are arranged between the two flanges, each of which penetrates the corresponding cylinder of the two flanges, and the two ends of the connecting rod are provided with threaded sections, and the threaded sections are screwed with fastening nuts. The application can realize the internal water pressure test of various types of drainage pipes under abnormal pressure, and is convenient to operate.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sewer pressure test, and particularly relates to a precast concrete sewer pressure test installation structure. BACKGROUND

[0002] The precast concrete sewer has the advantages of reliable structure, high pipe body hardness, high anti-seismic stability, strong corrosion resistance and the ability to meet special requirements. The maximum diameter of the current sewer can reach DN4000, which can meet the requirement of internal test pressure of 0.3Mpa. The precast concrete sewer is widely used in municipal public works, rain and sewage pipe culverts and power pipelines.

[0003] Based on the above, the applicant finds that the precast concrete sewer pressure test installation structure on the market cannot be used for structural mechanical property inspection by using the conventional test device required by GB / T 11836-2009. Firstly, the upper and lower sealing flanges of the conventional internal water pressure test device cannot withstand the internal water pressure of 5000KN. Secondly, the conventional rubber compression sealing form used for upper and lower sealing has been difficult to guarantee the sealing effect. Tests show that when the internal water pressure reaches 0.2MPa, the conventional device cannot maintain pressure, and a more reliable sewer installation structure needs to be designed to guarantee the test reliability.

[0004] In order to solve the above problems, the application provides a new precast concrete sewer pressure test installation structure to solve the unconventional superpressure internal water pressure test. SUMMARY

[0005] The application aims at the deficiencies of the prior art, and provides a precast concrete sewer pressure test installation structure to meet the unconventional superpressure internal water pressure structural mechanical property inspection of the precast concrete sewer pressure test installation structure meeting the special design requirements, guarantee the reliability of the structural mechanical property inspection of the unconventional pressure concrete sewer produced by the special process, and the specific scheme is as follows.

[0006] The application discloses a prefabricated concrete drainage pipe pressure test installation structure which comprises two flanges arranged in an upper-lower mode and a prefabricated concrete drainage pipe arranged between the two flanges.

[0007] According to the above, the reinforcing assembly comprises a base piece, and a plurality of support pieces are arranged radially around the base piece.

[0008] According to the above, the base piece comprises two annular base plates arranged in an upper-lower mode, and the two annular base plates are rigidly connected through a connecting cylinder.

[0009] According to the above, the reinforcing assembly has an outer diameter of 5000 mm, the base piece has an outer diameter of 700 mm, and the support pieces are made of I-shaped steel and have a number of 18.

[0010] According to the above, the bottom end of the drainage pipe is provided with a plurality of rubber rings for the first sealing cylinder, and the second sealing cylinder is provided with a plurality of rubber rings for the drainage pipe.

[0011] According to the above, the rubber pad one and the rubber pad two each have a thickness of 20 mm.

[0012] According to the above, the first sealing cylinder is made of a steel plate with a material of Q235 and a thickness of 12 mm.

[0013] According to the above, the base plate and the annular plate are each made of a steel plate with a thickness of 20 mm and a material of Q235.

[0014] Compared with the prior art, the application has the advantages of obvious progress and outstanding substantial features.

[0015] The prefabricated concrete drainage pipe pressure test installation structure can realize the internal water pressure test of all types of drainage pipes with irregular pressure (not greater than 0.3 MPa), ensure good sealing effect during the pressure test process, and has no leakage phenomenon and no deformation of the installation structure during the test process. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall structure schematic diagram of the present application.

[0017] Figure 2 is the structure schematic diagram of the lower flange in the present application.

[0018] Figure 3 is the structure top view of the reinforcing assembly in the present application.

[0019] Figure 4 is the top view of the reinforcing assembly in the present application.

[0020] Figure 5 is the front view of the support in the present application.

[0021] Figure 6 is Figure 5 is the A-A direction sectional view.

[0022] Figure 7 is the front view of the present application.

[0023] In the figure: 1. Flange; 1-1. Base plate; 1-2. Annular plate; 1-3. Cylinder; 1-4. Reinforcing assembly; 1-41. Base piece; 1-42. Support; 1-5. Pin cylinder; 1-11. Water passage; 3. First sealing cylinder; 4. Rubber pad I; 5. Drainage pipe; 6. Second sealing cylinder; 7. Rubber pad II; 8. Rubber ring; 9. Connecting rod; 10. Fastening nut; 11. Support leg. DETAILED DESCRIPTION

[0024] The technical solutions of the present application are described in further detail below through specific embodiments. EMBODIMENT

[0025] As Figures 1-7As shown, the application provides a prefabricated concrete drainage pipe pressure test installation structure, which comprises two flanges 1 arranged in upper and lower positions and having the same structure, and a prefabricated concrete drainage pipe 5 arranged between the two flanges 1; the flange 1 comprises a base plate 1-1 and an annular plate 1-2, a cylinder 1-3 is arranged between the base plate 1-1 and the annular plate 1-2, and the two ends of the cylinder 1-3 are fixedly connected with the base plate 1-1 and the annular plate 1-2, respectively; the flange 1 further comprises a reinforcing assembly 1-4 arranged between the base plate 1-1, the annular plate 1-2 and the cylinder 1-3; a water passing hole 1-11 is arranged in the middle of the base plate 1-1; the flange 1 further comprises a plurality of pin barrels 1-5, each of which is arranged through the base plate 1-1 and the annular plate 1-2; a first sealing cylinder 3 and a rubber pad one 4 corresponding to the bottom end of the drainage pipe 5 are arranged on the base plate 1-1 of the lower flange 1, and the bottom end of the drainage pipe 5 is provided with a first annular notch matched with the first sealing cylinder 3; a second sealing cylinder 6 is arranged on the base plate 1-1 of the upper flange 1, and the top end of the drainage pipe 5 is provided with a second annular notch corresponding to the second sealing cylinder 6, and a rubber pad two 7 matched with the bottom end of the second sealing cylinder 6 is arranged at the second annular notch; a plurality of connecting rods 9 are arranged between the two flanges 1, each of the connecting rods 9 passes through the corresponding cylinder 1-3 of the two flanges 1, and the two ends of the connecting rod 9 are provided with threaded sections, and the threaded sections are screwed with fastening nuts 10 for fixing the two flanges 1 together.

[0026] The reinforcing assembly 1-4 is used to ensure the structural strength of the flange 1 and meet the mechanical performance requirements, which comprises a base piece 1-41 and a plurality of support pieces 1-42 arranged radially around the base piece 1-41.

[0027] The base piece 1-41 comprises two annular base plates arranged in upper and lower positions and rigidly connected by a connecting cylinder.

[0028] The outer diameter of the reinforcing assembly 1-4 is 5000 mm; the outer diameter of the base piece 1-41 is 700 mm; and the number of the support pieces 1-42 is 18, which are made of I-beams.

[0029] In order to ensure the sealing performance of the drainage pipe, a plurality of rubber rings 8 corresponding to the first sealing cylinder 3 are arranged on the bottom end of the drainage pipe 5; and a plurality of rubber rings 8 corresponding to the drainage pipe 5 are arranged on the second sealing cylinder 6.

[0030] The thickness of the rubber pad one 4 and the rubber pad two 7 is 20 mm.

[0031] The first sealing cylinder 3 is made of a steel plate with a material of Q235 and a thickness of 12 mm.

[0032] The base plate 1-1 and the annular plate 1-2 are made of steel plates with a thickness of 20 mm and a material of Q235.

[0033] In order to facilitate the use of the drain pipe, the bottom of the lower flange 1 is further provided with a plurality of supporting legs 11.

[0034] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the specific embodiments of the present application can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solutions of the present application, they should be covered in the technical solution range of the present application claimed.

Claims

1. A pressure test installation structure for a precast concrete drainage pipe, characterized in that: The system includes two identical flanges (1) arranged vertically, with a precast concrete drainage pipe (5) between the two flanges (1). Each flange (1) includes a base plate (1-1) and an annular plate (1-2). A cylindrical body (1-3) is provided between the base plate (1-1) and the annular plate (1-2). The two ends of the cylindrical body (1-3) are fixedly connected to the base plate (1-1) and the annular plate (1-2) respectively. The flange (1) also includes a reinforcing component (1-4) disposed between the base plate (1-1), the annular plate (1-2), and the cylindrical body (1-3). The base plate (1-1) The flange (1) is provided with a water passage hole (1-11) in the middle; the flange (1) also includes a plurality of pin cylinders (1-5), each of the pin cylinders (1-5) is provided through the base plate (1-1) and the annular plate (1-2); the base plate (1-1) of the lower flange (1) is provided with a first sealing cylinder (3) and a rubber gasket (4) for the bottom end of the drain pipe (5), the bottom end of the drain pipe (5) is provided with a first annular notch adapted to the first sealing cylinder (3); the base plate (1-1) of the upper flange (1) is provided with a second sealing cylinder (6), the top end of the drain pipe (5) is provided with a second sealing cylinder (6) adapted to the first sealing cylinder (3); The sealing cylinder (6) has a second annular notch, and a rubber pad (7) adapted to the bottom of the second sealing cylinder (6) is provided at the second annular notch; multiple connecting rods (9) are provided between the two flanges (1), and each connecting rod (9) passes through the cylinder (1-3) corresponding to the two flanges (1). Both ends of the connecting rod (9) are provided with threaded sections, and the threaded sections are screwed with fastening nuts (10) for fixing the two flanges (1) together; the reinforcing assembly (1-4) includes a base component (1-41), and multiple supports are provided radially around the base component (1-41). Support (1-42); The base component (1-41) includes two annular base plates arranged on the upper and lower sides, and the two annular base plates are rigidly connected by a connecting cylinder; The outer diameter of the reinforcing component (1-4) is 5000mm; The outer diameter of the base component (1-41) is 700mm; The number of support components (1-42) is 18, and the support components (1-42) are made of I-beams; The bottom end of the drain pipe (5) is fitted with multiple rubber rings (8) for the first sealing cylinder (3); The second sealing cylinder (6) is fitted with multiple rubber rings (8) for the drain pipe (5).

2. The precast concrete drainage pipe pressure test installation structure according to claim 1, characterized in that: The thickness of both rubber pad one (4) and rubber pad two (7) is 20mm.

3. The precast concrete drainage pipe pressure test installation structure according to claim 1, characterized in that: The first sealing cylinder (3) is made of steel plate with Q235 material and a thickness of 12mm.

4. The precast concrete drainage pipe pressure test installation structure according to claim 1, characterized in that: The base plate (1-1) and the ring plate (1-2) are both made of Q235 steel plate with a thickness of 20mm.

Images