Quick plugging equipment for pipe jacking grouting hole

Abstract

The utility model provides a pipe jacking grouting hole rapid plugging device which comprises a shell, the shell is provided with an inserting column, and an air bag is arranged outside the inserting column. A plugging mechanism is arranged on the side, away from the shell, of the insertion column, and an expansion sealing plug is arranged in the plugging mechanism. The expansion sealing plug expands when encountering water; a control panel is arranged on the side, away from the inserting column, of the shell. And a battery and a control chip are arranged in the shell. The grouting hole can be quickly and efficiently plugged, and the construction efficiency is remarkably improved; the device can adapt to different geological conditions and grouting hole sizes, the sealing effect is ensured, and the adaptability is higher; the equipment is simple in structure, convenient to operate, capable of being rapidly recycled after plugging is completed, convenient to reuse and capable of reducing cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipe jacking grouting hole plugging technical field, specifically relates to a pipe jacking grouting hole quick plugging equipment. BACKGROUND

[0002] As a trenchless construction method, pipe jacking technology is often used in the laying of urban underground pipes, the construction of drainage systems, the laying of communication cable pipes and other fields due to its small construction disturbance, strong adaptability and short construction period.

[0003] In pipe jacking construction, grouting hole plugging is a key link to ensure grouting effect and construction safety.

[0004] However, the traditional bolt fastening type grouting hole plugging technology has low efficiency and unstable sealing effect, and water and grout may leak during improper operation during bolt fastening, and the bolts are easily damaged during disassembly, making it difficult to reuse the bolts and increasing subsequent maintenance costs. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a pipe jacking grouting hole quick plugging equipment to solve the problems of low plugging efficiency and inconvenient operation of the prior art.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme:

[0007] A pipe jacking grouting hole quick plugging equipment includes a housing, the housing is provided with a plug-in column, and a gas bag is arranged outside the plug-in column;

[0008] The side of the plug-in column away from the housing is provided with a plugging mechanism, and the plugging mechanism is provided with an inflatable sealing plug;

[0009] The inflatable sealing plug expands when it comes into contact with water.

[0010] In the preferred scheme, the side of the housing away from the plug-in column is provided with a control panel;

[0011] The housing is provided with a battery and a control chip.

[0012] In the preferred scheme, the plug-in column is provided with a gas pump, and the gas pump is connected with the gas bag through a gas conveying pipe;

[0013] The gas pump is connected with the outside through an air inlet pipe.

[0014] In the preferred scheme, the gas pump is provided with a gas pressure sensor, and the gas conveying pipe is provided with a gas valve.

[0015] In the preferred scheme, the plugging mechanism includes a storage bin arranged in the plug-in column, one end of the storage bin is open and extends to the outside of the plug-in column;

[0016] The storage bin is provided with an expansion sealing plug and a piston, and the piston is located at one side close to the shell;

[0017] The piston is connected with a driving mechanism;

[0018] The storage bin is provided with a diaphragm at one side away from the shell;

[0019] The storage bin and the plug-in column are provided with a fixing ring.

[0020] In the preferred scheme, the end of the storage bin is provided with a thread, and the end of the storage bin is provided with a connecting cover;

[0021] The connecting cover is provided with a threaded ring, and the threaded ring is threadedly connected with the storage bin;

[0022] The threaded ring and the storage bin are provided with a diaphragm.

[0023] In the preferred scheme, the driving structure comprises a partition plate arranged in the plug-in column, and the partition plate is provided with a sealing gasket at one side away from the shell;

[0024] The partition plate is provided with a motor at one side close to the shell;

[0025] The partition plate and the storage bin are provided with a fixing sleeve, and the fixing sleeve is slidably connected with a sliding rod;

[0026] One end of the sliding rod is fixedly connected with the piston;

[0027] The output shaft of the motor is provided with a threaded rod, and the threaded rod is threadedly connected in the interior of the sliding rod.

[0028] In the preferred scheme, the outer circumferential surface of the sliding rod is polygonal, the fixing sleeve is provided with a sliding hole, and the sliding hole is matched with the sliding rod.

[0029] The utility model provides a kind of top pipe grouting hole rapid plugging equipment, by using above scheme, with following beneficial effects:

[0030] 1, by the double sealing mechanism of air bag and expansion sealing plug, grouting hole can be quickly and efficiently plugged, and construction efficiency is significantly improved.

[0031] 2, expansion sealing plug uses water-swelling material, can adapt to different geological conditions and grouting hole size, ensure sealing effect, and adaptability is stronger.

[0032] 3, the air pressure of air bag (3) is monitored in real time by gas pressure sensor and gas valve, to ensure the safety and reliability of plugging process.

[0033] 4, equipment structure is simple, easy to operate, can be quickly recycled after plugging is completed, is convenient for repeated use, and cost is reduced.

[0034] 5. When disassembled, the inflatable sealing plug that has been completed will not be damaged, and the subsequent maintenance cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0035] The utility model will be further described below in combination with the drawings and embodiments:

[0036] Figure 1 is the structure schematic diagram of the utility model;

[0037] Figure 2 is the structure schematic diagram of the utility model's section structure;

[0038] Figure 3 is the structure schematic diagram of the drive mechanism of the utility model;

[0039] Figure 4 is the structure schematic diagram of the connecting cover of the utility model.

[0040] In the drawings:

[0041] Shell 1, control panel 101, battery 102, control chip 103, plug-in column 2, air bag 3, air pump 301, gas pipe 302, air inlet pipe 303, plugging mechanism 4, storage bin 401, inflatable sealing plug 402, fixed ring 403, connecting cover 404, piston 405, threaded ring 406, diaphragm 407, drive mechanism 5, baffle 501, sealing gasket 502, motor 503, fixed sleeve 504, sliding rod 505, threaded rod 506. DETAILED DESCRIPTION

[0042] In the embodiments of the present application, as shown in Figure 1 , 2 , 3 and 4, a kind of pipe-jacking grouting hole rapid plugging equipment, including shell 1, plug-in column 2, air bag 3 and plugging mechanism 4.

[0043] Wherein: shell 1 is equipped with plug-in column 2, plug-in column 2 is equipped with air bag 3. Shell 1 is equipped with control panel 101 on the side away from plug-in column 2, and battery 102 and control chip 103 are arranged in shell 1, for realizing the control of equipment. Control panel 101 and control chip 103 can use existing panel and control chip, and control and connection are carried out using existing mode.

[0044] Plug-in column 2 is equipped with air pump 301, and air pump 301 is connected with air bag 3 by gas pipe 302. Air pump 301 is communicated with the outside through air inlet pipe 303, for inflating or deflating air bag 3. Air pump 301 is equipped with gas pressure sensor, and air valve is arranged in gas pipe 302, for accurately controlling the air pressure of air bag 3.

[0045] The sealing mechanism 4 is located on the side of the insertion post 2 away from the outer casing 1, and includes a storage chamber 401, an expansion sealing plug 402, a piston 405, and a drive mechanism 5. The storage chamber 401 contains the expansion sealing plug 402 and the piston 405. The piston 405 is connected to the drive mechanism 5, which pushes the expansion sealing plug 402 into the grouting hole. The expansion sealing plug 402 is made of a water-swellable material, such as water-swellable rubber, water-absorbing polyurethane, and bentonite composite materials, which can rapidly expand upon contact with water or grout to achieve a sealing effect.

[0046] Drive mechanism 5: Drive mechanism 5 includes a motor 503, a threaded rod 506, and a sliding rod 505. The motor 503 drives the sliding rod 505 to move via the threaded rod 506. The sliding rod 505 is fixedly connected to the piston 405 and is used to push the expansion sealing plug 402 into the grouting hole. The outer circumferential surface of the sliding rod 505 is polygonal, and the fixed sleeve 504 has a matching sliding hole to ensure the stable movement of the sliding rod 505.

[0047] Storage compartment 401: The end of storage compartment 401 is threaded and fixed by connecting cover 404 and threaded ring 406. A fixing ring 403 is provided between storage compartment 401 and plug post 2 to ensure the stability of storage compartment 401. A diaphragm 407 is provided on the side of storage compartment 401 away from the outer shell 1 to prevent expansion sealing plug 402 from contacting water or slurry when not in use; the diaphragm 407 is made of water-resistant material, such as rubber diaphragm, polyurethane diaphragm, polytetrafluoroethylene and thermoplastic elastomer.

[0048] Working principle:

[0049] When in use, insert the plug 2 into the grouting hole, start the air pump 301 through the control panel 101 to inflate the air bag 3, so that the air bag 3 expands and fits tightly against the inner wall of the grouting hole to achieve a preliminary seal.

[0050] Then, the drive mechanism 5 is activated: the motor 503 drives the sliding rod 505 and the piston 405 to move via the threaded rod 506. At this time, the diaphragm 407 will be pushed open, thus pushing the expansion sealing plug 402 into the grouting hole. The expansion sealing plug 402 expands rapidly after contacting water or grout, filling the gaps in the grouting hole and achieving a secondary seal.

[0051] Then, the air pressure of the airbag 3 is monitored and adjusted in real time by a gas pressure sensor and an air valve to ensure a sealing effect.

[0052] After the sealing is completed, start the air pump 301 through the control panel 101 to release air and cause the air bag 3 to contract. Then remove the equipment from the grouting hole, unscrew the connecting cover 404, reinstall the new expansion sealing plug 402 and diaphragm 407, and then seal the other grouting hole.

[0053] The motor 503, air pump 301, gas pressure sensor and control panel 101 in the above scheme all adopt existing structures and are connected and controlled in existing ways.

[0054] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A rapid sealing device for grouting holes in pipe jacking, characterized in that: Includes an outer shell (1), the outer shell (1) is provided with a plug post (2), and an airbag (3) is provided outside the plug post (2); A sealing mechanism (4) is provided on the side of the plug (2) away from the outer shell (1), and an expansion sealing plug (402) is provided inside the sealing mechanism (4). The expansion sealing plug (402) expands when exposed to water.

2. The rapid sealing device for grouting holes in pipe jacking according to claim 1, characterized in that: A control panel (101) is provided on the side of the housing (1) away from the plug post (2). The outer casing (1) contains a battery (102) and a control chip (103).

3. The rapid sealing device for grouting holes in pipe jacking according to claim 1, characterized in that: An air pump (301) is installed inside the plug-in post (2), and the air pump (301) is connected to the airbag (3) through the air supply pipe (302); The air pump (301) is connected to the outside world through the air inlet pipe (303).

4. The rapid sealing device for grouting holes in pipe jacking according to claim 2, characterized in that: The air pump (301) is equipped with a gas pressure sensor, and the air supply pipe (302) is equipped with an air valve.

5. The rapid sealing device for grouting holes in pipe jacking according to claim 1, characterized in that: The sealing mechanism (4) includes a storage compartment (401) disposed within the plug-in post (2), one end of which is open and extends to the outside of the plug-in post (2); The storage compartment (401) is provided with an expansion sealing plug (402) and a piston (405), with the piston (405) located on the side close to the outer shell (1); The piston (405) is connected to a drive mechanism (5); The storage compartment (401) has a diaphragm (407) on the side away from the outer shell (1). A retaining ring (403) is provided between the storage compartment (401) and the plug (2).

6. The rapid sealing device for grouting holes in pipe jacking according to claim 5, characterized in that: The storage compartment (401) has threads at its end and a connecting cover (404) at its end. The connecting cover (404) is provided with a threaded ring (406), which is threadedly connected to the storage compartment (401) by threads; A diaphragm (407) is provided between the threaded ring (406) and the storage compartment (401).

7. The rapid sealing device for grouting holes in pipe jacking according to claim 5, characterized in that: The drive structure (5) includes a partition (501) disposed inside the plug post (2), and a sealing gasket (502) is provided on the side of the partition (501) away from the outer shell (1). A motor (503) is provided on the side of the partition (501) near the outer casing (1); A fixed sleeve (504) is provided between the partition (501) and the storage compartment (401), and a sliding rod (505) is slidably connected inside the fixed sleeve (504); One end of the sliding rod (505) is fixedly connected to the piston (405); The output shaft of the motor (503) is provided with a threaded rod (506), which is threadedly connected to the inside of the sliding rod (505).

8. The rapid sealing device for grouting holes in pipe jacking according to claim 7, characterized in that: The outer periphery of the sliding rod (505) is polygonal, and the fixed sleeve (504) has a sliding hole that is compatible with the sliding rod (505).

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