CN219532392U - A tightness test device for culvert pipes passing through embankments - Google Patents

Abstract

The utility model relates to a tightness test device for a dyke-penetrating culvert pipe, which comprises a support ring, wherein the support ring is at least sleeved with two plugging air bag rings, the plugging air bag rings are provided with air charging holes, the plugging air bag rings are used for being abutted against the inner wall of the culvert pipe, the outer wall of the support ring is provided with a water supply groove along the circumferential direction of the support ring, the water supply groove is communicated with a water delivery pipe, the water supply groove is communicated with an exhaust pipe, the exhaust pipe is provided with a pressure gauge for monitoring the water pressure in the water supply groove, and the support ring is provided with a fixing component for fixing the position of the support ring; the support ring is fixed at the joint of two adjacent culverts through the fixing component, and then the sealing airbag ring and the inner wall of the culvert are inflated to form sealing, pressure medium water is introduced into the water supply tank through the water delivery pipe, the exhaust pipe is sealed after the water completely enters the sealing cavity, and the water pressure in the sealing cavity is kept for a certain time, so that whether a leakage phenomenon exists at a pipeline interface is checked.

Description

A tightness test device for culvert pipes passing through embankments

technical field

The present application relates to the technical field of culvert pipes, in particular to a device for testing the tightness of culvert pipes passing through embankments.

Background technique

At present, in water conservancy projects, in order to provide convenience for cities or villages, it is necessary to build embankment culverts in river embankments, which can satisfy irrigation to a certain extent and also be able to drain waterlogged and prevent floods. Culvert pipes refer to pipes buried below the surface for water supply, drainage and other purposes, including cement culvert pipes and metal culvert pipes.

According to the GB50268 standard, after the completion of the pressure pipeline installation, a functional test should be carried out as a whole or in sections to safely and effectively detect the pressure drop and leakage of the test section of the pipeline under the test pressure, as a verification of whether the construction quality of the project meets the functionality Judgment basis for design requirements and specification requirements. Because it is easier to do the hydrostatic test on the small-diameter pressure pipe, it is also easy to manufacture the pressure block, and the required investment is not very large, so it is easy to implement. However, as the pipe diameter increases, it becomes more and more difficult to do hydrostatic testing.

Utility model content

In order to facilitate the hydraulic test of culverts with large diameters, the application provides a device for testing the tightness of culverts passing through embankments.

The tightness test device for culverts passing through embankments provided by this application adopts the following technical scheme:

A tightness test device for culvert pipes through dikes, comprising a support ring, the support ring is at least provided with two sealing air bag rings, the sealing air bag rings are provided with inflation holes, and the sealing air bag rings are provided with The plugging part of the inflation hole, the plugging airbag ring is used to abut against the inner wall of the culvert, the outer wall of the support ring is provided with a water supply groove along the circumferential direction of the support ring, and the water supply groove is located between the two plugging airbags Between the rings, the water supply tank is connected with a water delivery pipe, and the water supply tank is connected with an exhaust pipe. The exhaust pipe is provided with a pressure gauge for monitoring the water pressure in the water supply tank. The support ring is provided with a useful Fixing assembly for fixing the position of the support ring.

By adopting the above technical solution, the support ring is fixed at the joint of two adjacent stents through the fixing component, and then the air bag ring is inflated through the inflation hole, so that the ring of the air bag is deformed and expanded outward, thereby making the blockage The airbag ring forms a seal with the inner wall of the culvert, and the two sealing airbag rings together with the water supply tank and the inner wall of the culvert form a sealed cavity. The gas is emptied, and the exhaust pipe is blocked after the water has completely entered the sealed cavity, and the water pressure in the sealed cavity is maintained for a certain period of time, so as to check whether there is any leakage at the pipe interface and whether there are minor defects at the pipe port. Leakage or pipe defects can be remedied in a timely manner, which is convenient for hydrostatic testing of large-diameter culverts.

Optionally, the fixing assembly includes a fixing column, a screw, a moving sleeve and a sliding column, both of which are used to abut against the inner wall of the stent, and a bracket is fixed inside the support ring, and the fixing The column is connected to the bracket, the screw is coaxially fixedly connected with the fixed column, the sliding column is slidably sleeved on the fixed column along the length direction of the fixed column, the moving sleeve is threaded on the screw rod, the moving sleeve and the sliding column Abut.

By adopting the above technical scheme, by rotating the moving sleeve, the moving sleeve is moved along the length direction of the screw rod, and the moving sleeve abuts against the sliding column to drive the sliding column to slide, so that the sliding column slides to the inner wall of the culvert pipe. The support ring is fixed by friction with the inner wall of the culvert.

Optionally, the end of the screw rod away from the fixed column is fixedly sleeved with an anti-off block, and the inner wall of the sliding column is provided with an anti-off groove along the length direction of the sliding column, and the anti-off groove is closed and arranged near the end of the fixed column , the anti-off block is slidingly connected with the anti-off groove.

By adopting the above technical solution, the abutment between the anti-loosening block and the closed end of the anti-loosening groove is beneficial to prevent the sliding column from being detached from the screw rod, which is convenient for operation.

Optionally, the bottom end of the fixed column is fixedly provided with a first support block, and the first support block is provided with a first arc-shaped surface for fitting with the inner wall of the stent, and the top end of the sliding column A second support block is fixedly provided, and the second support block is provided with a second arc-shaped surface for fitting with the inner wall of the stent pipe, and both the first arc-shaped surface and the second arc-shaped surface are used for abutting against the stent pipe catch.

By adopting the above technical solution, the first arc-shaped surface and the second arc-shaped surface are beneficial to increase the contact area between the first support block and the second support block and the inner wall of the stent, thereby increasing the fixing effect on the support ring.

Optionally, the fixing column is detachably connected to the bracket.

By adopting the above technical solution, the fixing column and the bracket are detachably connected, which facilitates the fixed connection of the fixing component with the support rings of different sizes, thereby improving the reusability of the fixing component and helping to save costs.

Optionally, the bracket includes a first pole and a second pole, the first pole and the second pole are fixedly connected, the first pole is fixedly arranged in the support ring, and the second pole The rod is coaxially fixedly connected with an insert block, the fixed column is provided with a slot for inserting the insert block, the insert block is inserted into the slot, and the fixed column is provided with a fixing piece for fixing the insert block.

By adopting the above technical solution, insert the plug into the slot, and fix the plug through the fixing piece, so as to connect the fixed column and the bracket; remove the restraint effect of the fixing piece on the plug, and drive the fixing column to separate from the plug. Remove the mounting post from the bracket.

Optionally, the fixing member is configured as a connecting bolt, and the connecting bolt is threaded through the fixing column and the insert block at the same time.

By adopting the above technical solution, the purpose of fixing the fixing column and the inserting block can be realized by connecting the bolts, and the fixing effect is better at the same time.

Optionally, diagonal braces are hinged on both sides of the fixing column, and the diagonal braces are used to abut against the inner wall of the culvert.

By adopting the above technical solution, the diagonal brace is beneficial to improve the stability of the fixed column, thereby increasing the fixing effect on the support ring.

In summary, the present application includes at least one of the following beneficial technical effects:

1. Fix the support ring at the junction of two adjacent stents through the fixing component, and then inflate the sealing air bag ring through the inflation hole, so that the sealing air bag ring deforms and expands outward, so that the sealing air bag ring and the stent tube The inner wall forms a seal, and the two sealing air bag rings together with the water supply tank and the inner wall of the culvert form a sealed cavity. The pressure medium water is passed into the water supply tank through the water delivery pipe, and the gas in the sealed cavity is emptied through the exhaust pipe. After the water has completely entered the sealed cavity, block the exhaust pipe, and maintain the water pressure in the sealed cavity for a certain period of time, so as to check whether there is any leakage at the pipe interface and whether there are minor defects at the pipe port. Defects can be remedied in a timely manner;

2. The detachable connection between the fixed column and the bracket facilitates the fixed connection of the fixed components with the support rings of different sizes, thereby improving the reusability of the fixed components and helping to save costs;

3. Diagonal struts are beneficial to improve the stability of the fixed column, thereby increasing the fixing effect on the support ring.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the embodiment of the present application;

Fig. 2 is a schematic structural view of the embodiment of the present application mainly embodying the supporting ring and the blocking air bag ring;

FIG. 3 is a schematic structural view of an embodiment of the present application mainly embodying a fixing component.

Explanation of reference signs: 1, culvert pipe; 2, support ring; 21, water supply tank; 22, exhaust pipe; 23, branch pipe; 24, pressure gauge; 25, exhaust valve; 3, sealing airbag ring; 31, inflation Pipe; 32, air pipe; 33, plugging cover; 34, water pipe; 4, bracket; 41, first pole; 42, second pole; 421, insert block; 51, fixed column; 511, slot ; 52, screw rod; 521, anti-off block; 53, moving sleeve; 54, sliding column; ; 62, the first support block; 621, the first arc-shaped surface; 63, the anti-skid bump; 64, the diagonal brace.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-3.

The embodiment of the present application discloses a device for testing the tightness of culvert pipes passing through embankments.

Referring to Fig. 1 and Fig. 2, a device for testing the tightness of culvert pipes through dikes includes a support ring 2 fixed at the junction of two culvert pipes 1, and at least two sealing air bag rings are sheathed on the outer wall of the support ring 2 3. The plugging airbag ring 3 is provided with an inflation hole, and the inflation holes on the two plugging airbag rings 3 are fixedly pierced with an inflatable tube 31, and the two inflation tubes 31 are connected through the air delivery tube 32, and the plugging airbag ring 3 is set There is a plugging piece for closing the inflation hole, and the plugging piece is set as a plugging cover 33 , and the plugging cover 33 is threadedly sleeved on one end of the gas delivery pipe 32 . Unscrew the blockage, and use a high-pressure air pump to inflate the air delivery pipe 32, so that the two sealing air bag rings 3 are simultaneously raised, deformed and expanded outward, so that the sealing air bag ring 3 and the inner wall of the culvert tube 1 form a seal.

Referring to Fig. 2, the plugging airbag ring 3 is used to abut against the inner wall of the stent 1, and the outer wall of the supporting ring 2 is provided with a water supply groove 21 along the circumferential direction of the supporting ring 2, and the water supply groove 21 is located between the two blocking airbag rings 3 In between, the water supply tank 21 is communicated with a water delivery pipe 34 . The water supply tank 21 is communicated with an exhaust pipe 22 , and the exhaust pipe 22 is provided with an exhaust valve 25 for discharging the air in the water supply tank 21 . The exhaust pipe 22 is provided with a pressure gauge 24 for monitoring the water pressure in the water supply tank 21 , the exhaust pipe 22 is connected with a branch pipe 23 , and the pressure gauge 24 is arranged on the branch pipe 23 .

With reference to Fig. 2 and Fig. 3, the both sides of support ring 2 are all provided with the fixed component that is used for fixing the position of support ring 2, and fixed component comprises fixed column 51, screw rod 52, moving sleeve 53 and sliding column 54, and fixed column 51 and sliding column 54 are all used to abut against the inner wall of the stent pipe 1 . The support ring 2 is fixedly provided with a bracket 4, the bracket 4 includes a first pole 41 and a second pole 42, the first pole 41 and the second pole 42 are fixedly connected and perpendicular to each other, the first pole 41 is fixedly arranged on In the support ring 2 , both ends of the first strut 41 are fixedly connected to the inner wall of the support ring 2 . One end of the second pole 42 is fixedly connected to one of the fixing columns 51 , and the other end is fixedly connected to the other fixing column 51 . Both sides of the fixing column 51 are hinged with diagonal struts 64 , and the diagonal struts 64 are used to abut against the inner wall of the culvert 1 .

Referring to FIG. 3 , the screw rod 52 is fixedly connected coaxially with the fixing column 51 , and the screw rod 52 is fixedly arranged on the top wall of the fixing column 51 . The sliding column 54 is slidably sleeved on the fixed column 51 along the length direction of the fixed column 51, the moving sleeve 53 is threadedly sleeved on the screw rod 52, the top wall of the moving sleeve 53 abuts against the bottom wall of the sliding column 54, and the moving sleeve 53 is fixedly arranged The handle 55 is convenient for turning the mobile sleeve 53 . Screw rod 52 is provided with anti-off block 521 from one end fixed cover of fixed column 51, and the inwall of sliding column 54 is provided with anti-off groove 541 along the length direction of sliding column 54, and anti-off groove 541 is closed and arranged near one end of fixed column 51, prevents The disengagement block 521 is slidably connected with the disengagement prevention groove 541 .

Referring to FIG. 2 and FIG. 3 , the bottom end of the fixing column 51 is fixedly provided with a first support block 62 , and the first support block 62 is provided with a first arc-shaped surface 621 for fitting with the inner wall of the stent 1 . The top end of the sliding column 54 is fixedly provided with a second support block 61, and the second support block 61 is provided with a second arc-shaped surface 611 for fitting with the inner wall of the stent 1, and the second arc-shaped surface 611 is fixedly provided with an anti-slip protrusion Block 63 , a plurality of anti-slip protrusions 63 are provided along the length direction and width direction of the second support block 61 . Both the first arc surface 621 and the second arc surface 611 are used to abut against the inner wall of the stent 1 , and the anti-slip protrusion 63 is used to abut against the inner wall of the stent 1 .

Referring to Fig. 3, the fixed column 51 is detachably connected with the bracket 4, the second pole 42 is coaxially fixedly connected with an insert 421, the fixed column 51 is provided with a slot 511 for inserting the insert 421, and the insert 421 and the slot 511 Inserting, the fixing column 51 is provided with a fixing piece for fixing the inserting block 421 , the fixing piece is configured as a connecting bolt 56 , and the connecting bolt 56 is threaded through the fixing column 51 and the inserting block 421 at the same time.

The implementation principle of a tightness test device for penetrating dikes and culverts in the embodiment of the present application is as follows: by rotating the moving sleeve 53, the moving sleeve 53 moves along the length direction of the screw rod 52, and the moving sleeve 53 abuts against the sliding column 54 to drive the sliding column. 54 slides, so that the sliding column 54 slides to be against the inner wall of the stent 1, and the support ring 2 is fixed at the junction of two adjacent stents 1 by the friction force between the sliding column 54 and the inner wall of the stent 1. Then inflate the airbag ring 3 through the inflation hole, so that the airbag ring 3 is deformed and expanded outward, so that the airbag ring 3 and the inner wall of the culvert pipe 1 form a seal, and the two airbag rings 3 and the water supply tank 21 Together with the inner wall of the culvert pipe 1, a sealed cavity is formed. The pressure medium water is passed into the water supply tank 21 through the water delivery pipe 34, and the gas in the sealed cavity is emptied through the exhaust pipe 22 at the same time. After the water completely enters the sealed cavity, it is sealed. Block the exhaust pipe 22 and keep the water pressure in the sealed cavity for a certain period of time, so as to check whether there is any leakage at the pipe interface and whether there are minor defects at the pipe port.

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims (8)

1. A tightness test device for penetrating embankment culverts, characterized in that: comprise a support ring (2), said support ring (2) is at least sleeved with two plugging air bag rings (3), said plugging air bag rings (3) There is an inflation hole, and the plugging airbag ring (3) is provided with a plugging member for sealing the inflation hole, and the plugging airbag ring (3) is used to abut against the inner wall of the culvert pipe (1), so The outer wall of the support ring (2) is provided with a water supply groove (21) along the circumferential direction of the support ring (2), and the water supply groove (21) is located between the two sealing air bag rings (3), and the water supply groove (21) is communicated with and is provided with water delivery pipe (34), and described water supply tank (21) is communicated with and is provided with exhaust pipe (22), and described exhaust pipe (22) is provided with and is used for monitoring the water pressure in water supply tank (21) A pressure gauge (24), the support ring (2) is provided with a fixing assembly for fixing the position of the support ring (2). 2. A tightness test device for piercing culvert pipes according to claim 1, characterized in that: the fixing assembly includes a fixing column (51), a screw (52), a moving sleeve (53) and a sliding column (54) , the fixed column (51) and the sliding column (54) are both used to abut against the inner wall of the culvert (1), the support ring (2) is fixedly provided with a bracket (4), and the fixed column (51) It is connected with the bracket (4), the screw rod (52) is coaxially fixedly connected with the fixed column (51), and the sliding column (54) is slidably sleeved on the fixed column (51) along the length direction of the fixed column (51), The moving sleeve (53) is screwed on the screw rod (52), and the moving sleeve (53) abuts against the sliding column (54). 3. A kind of tightness test device for penetrating dikes and culverts according to claim 2, characterized in that: one end of the screw (52) away from the fixed column (51) is fixedly sleeved with an anti-off block (521), the The inner wall of the sliding column (54) is provided with an anti-off groove (541) along the length direction of the sliding column (54), and the anti-off groove (541) is closed and arranged near one end of the fixed column (51), and the anti-off block ( 521) is slidably connected with the anti-off groove (541). 4. A kind of tightness test device for piercing culvert pipes according to claim 2, characterized in that: the bottom end of the fixed column (51) is fixedly provided with a first support block (62), and the first support block (62) is provided with a first arc-shaped surface (621) for fitting with the inner wall of the stent (1), the top of the sliding column (54) is fixedly provided with a second block (61), and the second The support block (61) is provided with a second arc-shaped surface (611) for fitting with the inner wall of the stent (1), and the first arc-shaped surface (621) and the second arc-shaped surface (611) are both used for Butt against the culvert pipe (1). 5 . The device for testing the tightness of culvert pipes through dikes according to claim 2 , characterized in that: the fixing column ( 51 ) is detachably connected to the support ( 4 ). 6. A kind of tightness test device for penetrating embankments and culverts according to claim 5, characterized in that: said support (4) comprises a first pole (41) and a second pole (42), said first The support rod (41) is fixedly connected with the second support rod (42), the first support rod (41) is fixedly arranged in the support ring (2), and the second support rod (42) is coaxially fixedly connected with a plug block (421), the fixed post (51) is provided with a slot (511) for inserting the plug block (421), the plug block (421) is inserted into the slot (511), and the fixed post (51 ) is provided with a fixture for fixing the plug (421). 7. A kind of tightness test device for penetrating dike and culvert pipe according to claim 6, characterized in that: said fixing member is arranged as a connecting bolt (56), and said connecting bolt (56) is threaded through the fixing column ( 51) and insert block (421). 8. A kind of tightness test device for piercing culverts according to claim 2, characterized in that: both sides of the fixed column (51) are hinged with diagonal braces (64), and the diagonal braces (64 ) is used to abut against the inner wall of the culvert (1).