CN209117285U - A grouting sleeve leakage detection device for supervision - Google Patents

Abstract

The utility model discloses a slurry leakage detection device for a grouting sleeve for supervision, which relates to the field of water conservancy engineering supervision and aims to solve the problem that the existing slurry leakage detection device is easily polluted by slurry. A sealing cover at the feed end, a vent pipe running through the side wall of the sealing cover opposite to the cover mouth, a detection seat arranged at one end of the ventilation pipe away from the sealing cover, an air cavity communicated with the ventilation pipe in the detection seat, and a The gas pumping component on the detection seat communicated with the air cavity, the pressure test device arranged on the detection seat, the ventilation component arranged on the ventilation pipe and the sealing component arranged on the sealing cover, so as not to contact the slurry, The purpose of detecting the slurry leakage of the sleeve.

Description

A grouting sleeve leakage detection device for supervision

technical field

The utility model relates to the field of water conservancy engineering supervision, in particular to a grouting sleeve leakage detection device for supervision.

Background technique

Grouting construction technology refers to pouring new cemented grout or chemical solution into geotechnical pores or building fissures through drilling holes or other facilities in accordance with the specified ratio and concentration, using machinery or grouting self-weight, to improve the grouting. It is a kind of construction technology that improves the mechanical properties of engineering structures and improves the stability of engineering structures. The application of grouting construction technology to the construction process of water conservancy projects is conducive to the efficient development of exhaust gas construction operations and provides technical support. The grouting sleeve is a commonly used equipment in grouting construction.

The existing Chinese patent with the authorization announcement number CN207133023U discloses a slurry leakage monitor for sleeve grouting, which includes a limiting body, a spring, a piston, and a hollow cylinder. The end of the positioning body is connected with annular threads, and the spring is connected with the limiting body and fixed in the hollow annular structure at the tail of the limiting body.

However, when the utility model detects the slurry leakage of the sleeve, the slurry is firstly sucked into the hollow cylinder. After a long time of use, a slurry solidified body will be solidified in the hollow cylinder, which affects the use.

Utility model content

In view of the deficiencies in the prior art, the purpose of the present utility model is to provide a grout leakage detection device for a grouting sleeve for supervision, which can detect the grout leakage of the grouting sleeve without contacting the grout, so as to ensure the cleanliness of the detection device. .

To achieve the above object, the utility model provides the following technical solutions:

A grout leakage detection device for a grouting sleeve for supervision, comprising a sealing cover sealingly connected to the feeding end of the sleeve, a vent pipe arranged through the side wall of the sealing cover opposite to the cover mouth, and a vent pipe disposed at one end of the vent pipe away from the sealing cover A detection seat, an air cavity arranged in the detection seat and communicated with the ventilation pipe, an air pumping assembly arranged on the detection seat and communicated with the air cavity, a pressure testing device arranged on the detection seat, and a ventilation assembly arranged on the ventilation pipe and Seal assembly on seal cover.

By adopting the above technical solution, the air pumping component pumps air into the air cavity, so that the pressure in the air cavity is higher than the atmospheric pressure, the sealing component covers the sealing cover on the feed end of the sleeve, the ventilation component opens the ventilation pipe, and observes the pressure testing device. The pressure in the cavity becomes smaller, indicating that the pressure in the air cavity pushes the slurry out of the sleeve, and the sleeve leaks. In the case of grouting, the grouting sleeve should be checked for grouting to ensure the cleanliness of the detection device.

The utility model is further provided that the ventilation pipe includes an air outlet pipe communicated with the air cavity and an air intake pipe communicated with the sealing cover, the diameter of the air outlet pipe is larger than that of the air intake pipe, and the ventilation assembly includes two ends. The operation ring column is screwed on the outer peripheral walls of the air intake pipe and the air outlet pipe respectively, a plurality of connection columns arranged on the inner side wall of the operation ring column and extending along the radius, and a ventilation cone column arranged at one end of the connection column away from the operation ring column. The narrow end of the conical column is arranged towards the intake pipe, the diameter of the wide end of the conical ventilating column is larger than the inner diameter of the intake pipe, and the diameter of the wide end of the conical ventilating column is smaller than the inner diameter of the air outlet, the operation The inner diameter of the ring column is larger than the inner diameter of the air outlet pipe.

By adopting the above technical solution, the operating ring column is rotated in the direction close to the sealing cover to drive the narrow end of the ventilation conical column to be inserted into the air intake pipe. The diameter of the wide end of the ventilation conical column is larger than the inner diameter of the air intake pipe, thereby closing the air cavity , to prevent air cavity leakage from affecting the test, turn the operating ring column towards the air cavity, the ventilation cone column is far away from the air intake pipe, the inner diameter of the operating ring column is larger than the inner pipe diameter of the air outlet pipe, and the wide end diameter of the ventilation cone column is larger than that of the air intake pipe The inner diameter of the pipe ensures that there is a gap between the operating ring column and the ventilation cone column to ensure the passage of gas.

The utility model is further provided that the sealing assembly comprises a sealing ring gasket arranged on the outer peripheral wall of the sealing cover, a sealing ring hoop arranged on the outer peripheral wall of the sealing ring gasket, a sealing ring gasket arranged on the outer peripheral wall of the sealing ring gasket and extending along a radius opposite to the opening of the sealing ring hoop. A sealing block and a sealing bolt threaded between the two sealing blocks.

By adopting the above technical solution, the sealing ring is fastened on the peripheral wall of the sleeve by the sealing ring, so that the sealing cover seals the sleeve, so as to ensure that the gas in the air cavity will not leak into the atmosphere after the ventilation pipe is ventilated. Instead, it is all used to squeeze the slurry in the sleeve, and then measure the slurry leakage of the sleeve.

The utility model is further provided that the air pumping assembly comprises an air pumping pipe which is arranged on the detection base and communicates with the air cavity, and a sealing clip which is arranged on the outer peripheral wall of the air pumping pipe.

By adopting the above technical solution, after the air pump is pumped into the air cavity, the sealing clip clamps the air pump, thereby preventing gas leakage in the air cavity and affecting the test of slurry leakage.

The utility model is further provided that the air cavity is an elastic inner cavity.

By adopting the above technical solutions, the gas entering the air cavity can get a certain buffer, preventing the explosion of the detection seat due to excessive air pressure and endangering the staff. Slurry leakage, the pressure change is more obvious, which is convenient for more accurate judgment of whether the sleeve has slurry leakage.

The utility model is further provided that, one end of the sealing cover away from the ventilation pipe is provided with detection fluff.

By adopting the above technical solution, after the ventilation tube is vented, first observe and detect the fluff, if the fluff is shaken, it means that there is air leakage at the seal between the sealing ring gasket and the sleeve, and the sleeve needs to be re-sealed to ensure the accuracy of the detection. .

The utility model is further provided that a sealing rubber gasket is arranged on the inner side wall of the sealing cover which is connected with the ventilation pipe.

By adopting the above technical scheme, when the sealing cover covers the sleeve, the sealing cover and the feed end of the sleeve are further sealed, so as to avoid gas leakage and affect the test.

A further arrangement of the present invention is that a sealing layer is arranged on the peripheral wall of the ventilation conical column.

By adopting the above technical solution, the tightness between the ventilation cone column and the inner wall of the air intake pipe is increased, so as to ensure that the ventilation cone column completely seals the air intake pipe during ventilation, so as to avoid air leakage in the air cavity and cause the pressure test device The pressure display is inaccurate, which affects the test results.

To sum up, the utility model has the following beneficial effects:

1. The utility model utilizes the air cavity whose internal pressure is higher than atmospheric pressure to the atmosphere in the sleeve, and judges whether the sleeve leaks slurry through the pressure change in the air cavity. Clean, increase the service life of the detection device, and avoid the waste of slurry;

2. The ventilation assembly of the present invention includes an air outlet pipe and an air inlet pipe with different pipe diameters. The outer peripheral walls of the air outlet pipe and the air inlet pipe are threadedly connected with an operation ring column, and the inner wall of the operation ring column is provided with a ventilation cone column. The ventilating conical column is inserted into and away from the air intake pipe, thereby realizing the sealing and ventilation of the ventilating pipe, which is convenient and quick;

3. The air cavity of the utility model adopts an elastic air cavity, and the gas enters the air cavity to obtain a certain buffer to prevent the explosion of the detection seat due to excessive air pressure and endanger the staff. At the same time, the air cavity has a certain expansion and contraction ability, which can accommodate more If the sleeve leaks slurry, the pressure change will be more obvious, which is convenient for more accurate judgment on whether the sleeve leaks slurry.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

Figure 2 is a cross-sectional view of the utility model.

FIG. 3 is an exploded view for embodying the ventilation assembly of the present invention.

Reference numerals: 1. Sealing cover; 2. Breathing pipe; 3. Detection base; 4. Air cavity; 5. Gas pumping assembly; 6. Pressure testing device; 7. Breathing assembly; 10. Intake pipe; 11. Operating ring column; 12. Connecting column; 13. Ventilation conical column; 14. Sealing ring gasket; 15. Sealing hoop; 16. Sealing block; 17. Sealing bolt; 18. Air pump; 19. Sealing clip; 20. Detecting fluff; 21. Sealing rubber pad; 22. Sealing layer.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

Example:

The utility model discloses a grout leakage detection device for a grouting sleeve for supervision. As shown in Figures 1 and 2, the utility model comprises a sealing cover 1 which is sealedly connected to the feeding end of the sleeve, and a sealing cover 1 which penetrates through the sealing cover 1 and is opposite to the cover mouth. The ventilation pipe 2 on the side wall, the detection seat 3 arranged at the end of the ventilation pipe 2 away from the sealing cover 1, the air cavity 4 arranged in the detection seat 3 and communicated with the ventilation pipe 2, and the detection seat 3 communicated with the air cavity 4 The air pump assembly 5, the pressure test device 6 arranged on the detection seat 3, the ventilation assembly 7 arranged on the vent pipe 2 and the sealing assembly 8 arranged on the sealing cover 1, the air pump assembly 5 includes a The inflating tube 18 communicated with the air cavity 4 and the sealing clip 19 arranged on the outer peripheral wall of the air inflating tube 18, the air cavity 4 is an elastic inner cavity; Inflate the air to make the pressure in the air chamber 4 higher than the atmospheric pressure, then clamp the air pump 18 with the sealing clip 19, and record the test result of the pressure test device 6. The spring uses the sealing assembly 8 to seal the sealing cover 1. Finally, the gas in the air cavity 4 is output to the sleeve through the ventilation pipe 2 through the ventilation assembly 7. After a period of time, observe the indication of the pressure testing device 6. If the indication of the pressure testing device 6 decreases, then Sleeve leaks.

As shown in FIG. 1 , the sealing assembly 8 includes a sealing ring gasket 14 arranged on the outer peripheral wall of the sealing cover 1 , a sealing ring hoop 15 arranged on the outer peripheral wall of the sealing ring gasket 14 , and a sealing ring hoop 15 arranged opposite to the opening of the sealing ring hoop 15 along a radius The extended sealing block 16 and the sealing bolt 17 threaded between the two sealing blocks 16 are provided with a detection fluff 20 at the end of the sealing cover 1 away from the ventilation pipe 2; Bolt 17, sealing cover 1 seals the feed end of the sleeve.

As shown in FIG. 2 and FIG. 3 , the ventilation pipe 2 includes an air outlet pipe 9 communicated with the air cavity 4 and an air intake pipe 10 communicated with the sealing cover 1. The diameter of the air outlet pipe 9 is larger than that of the air intake pipe 10. The ventilation assembly 7 It includes an operation ring column 11 threaded at both ends on the outer peripheral walls of the air intake pipe 10 and the air outlet pipe 9, a plurality of connection columns 12 arranged on the inner side wall of the operation ring column 11 and extending along a radius, and a plurality of connection columns 12 arranged on the connection column 12 away from the operation ring column 11 One end of the ventilation cone column 13, the peripheral wall of the ventilation cone column 13 is provided on the sealing layer 22, the narrow end of the ventilation cone column 13 is set towards the intake pipe 10, and the diameter of the wide end of the ventilation cone column 13 is larger than that of the intake pipe 10. The inner pipe diameter, the wide end diameter of the ventilation conical column 13 is smaller than the inner pipe diameter of the air outlet pipe 9, the inner diameter of the operating ring column 11 is larger than the inner pipe diameter of the air outlet pipe 9, and the inner side wall of the sealing cover 1 is connected with the ventilation pipe 2. There is a sealing rubber pad 21; the operation ring column 11 is rotated in the direction of the sealing cover 1, the narrow end of the ventilation cone column 13 is inserted into the air intake pipe 10, the ventilation pipe 2 is closed, and the ventilation cone column 13 is rotated in the direction of the detection seat 3, The narrow end of the ventilation cone 13 leaves the intake pipe 10, and the ventilation pipe 2 is ventilated.

work process:

First, make sure that the narrow end of the ventilation cone 13 is inserted into the air intake pipe 10, and the ventilation pipe 2 is in a closed state, and then the air cavity 4 is pumped through the air pump 18 to make the pressure in the air cavity 4 stronger than the atmospheric pressure, and then make The sealing clip 19 clamps the air pump 18, and at this time, the pressure indication in the air chamber 4 displayed by the pressure testing device 6 is recorded.

Then, put the sealing cover 1 and the sealing ring gasket 14 on the feed end of the sleeve, the sealing hoop 15 is clamped on the peripheral wall of the sleeve, tighten the sealing bolt 17, and the sealing cover 1 seals the feed end of the sleeve.

Finally, turn the operating ring column 11 to keep the narrow end of the ventilation cone column 13 away from the air inlet pipe 10, the ventilation pipe 2 is ventilated, and the gas in the air cavity 4 is pressed to the slurry in the sleeve. After a period of time, observe the pressure test The pressure indicator of the device 6, if the pressure indicator of the pressure test device 6 is significantly smaller, it means that the gas in the air chamber 4 presses the slurry out of the sleeve, and the sleeve leaks. If the pressure indicator of the pressure test device 6 shows Almost unchanged, the sleeve does not leak slurry.

This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. Those skilled in the art can make modifications to the present embodiment without creative contribution as needed after reading this specification, but as long as the utility model is used in the present invention All new types of claims are protected by the patent law.

Claims (8)

1. A device for detecting grout leakage of a grouting sleeve for supervision, characterized in that it comprises a sealing cover (1) sealingly connected to the feeding end of the sleeve, a sealing cover (1) which penetrates through and is arranged on the side wall opposite to the opening of the sealing cover (1). A breather pipe (2), a detection seat (3) arranged at one end of the breather pipe (2) away from the sealing cover (1), an air cavity (4) arranged in the detection seat (3) and communicated with the breather pipe (2), A gas pumping assembly (5) communicated with the air cavity (4) on the detection seat (3), a pressure testing device (6) arranged on the detection seat (3), and a ventilation assembly (7) arranged on the ventilation pipe (2) ) and the sealing assembly (8) arranged on the sealing cover (1). 2 . The device for detecting grout leakage of a grouting sleeve for supervision according to claim 1 , wherein the vent pipe ( 2 ) comprises an air outlet pipe ( 9 ) communicated with the air cavity ( 4 ) and a sealing cover. 3 . (1) The air intake pipe (10) communicated with each other, the diameter of the air outlet pipe (9) is larger than the diameter of the air intake pipe (10), and the ventilation assembly (7) comprises two ends respectively threadedly connected to the air intake pipe (10) and an operation ring column (11) on the outer peripheral wall of the air outlet pipe (9), a plurality of connecting columns (12) arranged on the inner side wall of the operation ring column (11) and extending along a radius, and a plurality of connecting columns (12) arranged on the connecting column (12) away from the operation ring column ( 11) A vented conical column (13) at one end, the narrow end of the vented conical column (13) is disposed toward the intake pipe (10), and the diameter of the wide end of the vented conical column (13) is larger than that of the intake pipe (10) ), the wide end diameter of the vent cone column (13) is smaller than the inner diameter of the air outlet pipe (9), and the inner diameter of the operating ring column (11) is larger than the inner diameter of the air outlet pipe (9) . 3 . The grout leakage detection device for a grouting sleeve for supervision according to claim 1 , wherein the sealing assembly ( 8 ) comprises a sealing ring gasket ( 14 ) arranged on the outer peripheral wall of the sealing cover ( 1 ). 4 . , a sealing hoop (15) arranged on the outer peripheral wall of the sealing ring gasket (14), a sealing block (16) oppositely arranged at the opening of the sealing hoop (15) and extending along a radius, and a sealing block (16) threadedly connected to the two sealing blocks (16) ) between the sealing bolts (17). 4. The device for detecting grout leakage of a grouting sleeve for supervision according to claim 1, characterized in that: the air pumping assembly (5) comprises a pumping device which is arranged on the detection seat (3) and communicates with the air cavity (4). An air pipe (18) and a sealing clip (19) arranged on the outer peripheral wall of the air blowing pipe (18). 5 . The device for detecting grout leakage of a grouting sleeve for supervision according to claim 1 , wherein the air cavity ( 4 ) is an elastic inner cavity. 6 . 6 . The device for detecting grout leakage of a grouting sleeve for supervision according to claim 2 , wherein a detection fluff ( 20 ) is provided at one end of the sealing cover ( 1 ) away from the ventilation pipe ( 2 ). 7 . 7. The grout leakage detection device of a grouting sleeve for supervision according to claim 6, characterized in that: a sealing rubber gasket (21) is provided on the inner side wall of the sealing cover (1) which is connected with the ventilation pipe (2). ). 8 . The device for detecting grout leakage of a grouting sleeve for supervision according to claim 7 , wherein a sealing layer ( 22 ) is arranged on the peripheral wall of the ventilation conical column ( 13 ). 9 .