CN110080550B

CN110080550B - Wall surface structure

Info

Publication number: CN110080550B
Application number: CN201910263532.7A
Authority: CN
Inventors: 不公告发明人
Original assignee: Jiangyin Oriental Construction Group Co ltd
Current assignee: Jiangyin Oriental Construction Group Co ltd
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2021-06-04
Anticipated expiration: 2039-04-03
Also published as: CN110080550A

Abstract

The invention discloses a wall surface structure, which belongs to the field of concrete and can realize smaller volume of a part, the crack on the bearing wall is not repaired, and after the repair is finished, the concrete for repairing and the original wall can form a relatively tight connection, the concrete for repairing and filling is not easy to be separated from the original wall under the action of external force, the crack is not easy to reappear, can bear and resist pressure together with the original wall, greatly enhances the performance of the original wall with cracks, meanwhile, the repair is convenient for workers, the concrete overflow phenomenon can not occur in the repair process, the waste of the concrete is not easy to cause, in the process of injecting the cement slurry for repairing into the crack, workers do not need to monitor nearby in real time, the working content of the workers is greatly simplified, and the working strength of crack repairing is reduced.

Description

Wall surface structure

Technical Field

The invention relates to the field of concrete, in particular to a wall surface structure.

Background

Ordinary concrete is artificial stone which is prepared by taking cement as a main cementing material, adding water, sand, stones and chemical additives and mineral admixtures if necessary, mixing the materials according to a proper proportion, uniformly stirring, densely forming, curing and hardening, and the ordinary cement concrete is the most common inorganic cementing material.

The micro-expansion concrete is prepared by adding a certain amount of expanding agent into common concrete, so that the concrete can expand to a certain extent under the action of the expanding agent during hydration, thereby making up for the shrinkage of the concrete, and achieving the purposes of preventing and treating concrete cracks and improving the performance of the concrete.

With the rapid development of the building industry, architects pay more attention to the problem of expansion joint deformation in building structures than ever before, and expansion and contraction cause temperature rise and fall, foundation rise and fall, shaking of the top of a high-rise building, earthquakes and the like, all cause expansion joint deformation of buildings. Therefore, research and development personnel intensively research the problems, fully consider the elaborate development in combination with the actual situation and absorb the advanced design concept and experience in the aspect outside the country, and the cement mortar spraying grouter is produced accordingly.

In the modern society, cement concrete is a common building material, however, in a part of newly built houses or commercial buildings, a phenomenon that cracks appear on the wall surface before use occurs, so that the safety of the houses or the commercial buildings is greatly influenced.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a wall surface structure which can repair cracks which are smaller in partial volume and not located on a bearing wall, and after the repair is completed, the concrete for repair and the original wall can form a relatively tight connection, can bear and resist pressure together with the original wall, greatly enhances the performance of the original wall with cracks, is convenient for workers to repair, does not overflow the concrete in the repair process, is not easy to cause concrete waste, greatly simplifies the work content of the workers, and reduces the work intensity of crack repair.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides a wall structure, includes the wall body, the wall body is formed by cement concrete placement, the wall body includes the cement piece, the cement piece intussuseption is filled with a plurality of aggregates, wherein the aggregate can be the higher material of the equal voluminous less hardness of sand or stone, the cement piece intussuseption is filled with a plurality of plant fiber bits, cement piece, aggregate and plant fiber bits need carry out intensive mixing before pouring the use, make aggregate, plant fiber bits evenly distributed in the cement piece, can realize less to some volumes, and not be located the crack on the bearing wall and repair, and after the completion of repairing, the concrete of repairing usefulness and former wall can form comparatively firm relation, can be with former wall bearing and resistance to compression together, strengthen the performance of the former wall that appears the crack by a wide margin.

Furthermore, the plant fiber scraps need to be subjected to dehydration treatment before use, and are cut after the dehydration treatment, so that the complete plant fiber scraps are cut into finished products with three different specifications, namely five centimeters, ten centimeters and twenty centimeters, the toughness and the service life of the plant fiber scraps can be greatly increased through the dehydration treatment, and the toughness and the strength of the cement block can be effectively increased through the matched use of the plant fiber scraps with multiple specifications.

Further, the wall body is provided with a crack, the wall body is provided with a positioning groove, the positioning groove is positioned at the crack, one side of the wall body close to the positioning groove is provided with a repairing plate, the repairing plate and the wall body are fixed and leveled through a plurality of screws, one end of the repairing plate close to the wall body is fixedly connected with a positioning plate matched with the positioning groove, the repairing plate is provided with a repairing injection port, the repairing injection port penetrates through the repairing plate and the positioning plate, a sealing plug matched with the repairing injection port is inserted in the repairing injection port, the inner wall of the repairing injection port is fixedly connected with a pair of positioning rods, one end of each positioning rod far away from the inner wall of the repairing injection port penetrates through the sealing plug, an extension spring is connected between the inner wall of the repairing injection port and the sealing plug, and the two ends of the extension spring are respectively fixedly connected with the inner wall and, make things convenient for the staff to repair, and the phenomenon that the concrete spills over can not appear at the in-process of repairing, be difficult for causing the waste of concrete, simplify staff's work content by a wide margin, reduce the working strength that the crack was repaired.

Furthermore, the outer surface of the positioning groove is smooth, and the positioning groove needs to be washed by water before pouring cement concrete, so that foreign matters on the surface of the positioning groove are washed away, and the influence on the solidification of the cement concrete poured in the positioning groove is reduced.

Furthermore, the sealing plug includes cylinder stopper and round platform stopper, the cylinder stopper is cylindricly, the round platform stopper is the round platform form, open on the round platform stopper chisel have with extension spring assorted deposit hole, the round platform stopper that is the round platform form is difficult for the cement concrete jam of pouring when closed, makes things convenient for the sealing plug to close sealed repair sprue, and deposit the hole and then be used for depositing extension spring when the sealing plug is airtight.

Furthermore, the repair material filling port is internally spliced with a cement injection gun nozzle matched with the cylindrical plug, the cement injection gun nozzle is fixedly connected with a conveying pipeline of a cement mortar spraying grouting machine, and the cement mortar spraying grouting machine pours cement concrete into the positioning groove through the cement injection gun nozzle.

Further, cement injection rifle muzzle includes the injection rifle barrel, the one end of injection rifle barrel is the blind end, it has a pair of injection rifle muzzle to open on the injection rifle barrel of injection rifle barrel, the injection rifle barrel is inside to be linked together with the external world through the injection rifle muzzle, and the injection rifle muzzle is close to the blind end of injection rifle barrel, a pair of spacing wing limit of fixedly connected with on the lateral wall of injection rifle barrel, injection rifle muzzle are used for pouring cement concrete in to the constant head tank, and spacing wing limit has limiting displacement, makes cement injection rifle muzzle difficult for inserting repair notes material sealing plug muzzle too dark, is difficult for causing the damage.

Furthermore, the spacing flange is cut a magnet groove, the magnet inslot fixedly connected with magnet, open on the repair board and cut the iron plate groove that matches with the magnet groove, iron plate inslot fixedly connected with iron plate fixes the outside at the constant head tank with cement injection rifle mouth through the absorption of magnet and iron plate, is difficult for taking place to drop.

Furthermore, a pressure sensor is arranged between the magnetic block and the iron block and fixedly connected with the magnetic block, and the pressure sensor is used for measuring the pressure between the magnetic block and the iron block.

Furthermore, the outer side of the pressure sensor is wrapped by a sealing rubber pad, and the sealing rubber pad is fixedly connected with the magnetic block to protect the pressure sensor, so that the pressure sensor is not easy to damage.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme can realize less to partial volume, and not be located the crack on the bearing wall and repair, and accomplish the back in the repair, the concrete of repairing the usefulness and former wall can form comparatively firm connection, can be with former wall bearing and resistance to compression together, the performance of fissured former wall appears in the reinforcing by a wide margin, make things convenient for the staff to repair simultaneously, and the phenomenon that the concrete spilled over can not appear at the in-process of repairing, be difficult for causing the waste of concrete, simplify staff's work content by a wide margin, reduce the working strength that the crack was repaired.

(2) The plant fiber scraps are subjected to dehydration treatment before use, and are cut after the dehydration treatment, the complete plant fiber scraps are cut into finished products with three different specifications, namely five centimeters, ten centimeters and twenty centimeters, the toughness and the service life of the plant fiber scraps can be greatly improved through the dehydration treatment, and the toughness and the strength of the cement block can be effectively improved through the matching use of the plant fiber scraps with multiple specifications.

(3) The wall surface body comprises a crack, the wall surface body is provided with a positioning groove, the positioning groove is positioned at the crack, one side of the wall surface body close to the positioning groove is provided with a repairing plate, the repairing plate and the wall surface body are fixed and refined through a plurality of screws, one end of the repairing plate close to the wall surface body is fixedly connected with a positioning plate matched with the positioning groove, the repairing plate is provided with a repairing injection port, the repairing injection port penetrates through the repairing plate and the positioning plate, a sealing plug matched with the repairing injection port is inserted in the repairing injection port, the inner wall of the repairing injection port is fixedly connected with a pair of positioning rods, one end of each positioning rod far away from the inner wall of the repairing injection port penetrates through the sealing plug, a tension spring is connected between the inner wall of the repairing injection port and the sealing plug, and two ends of the tension spring are respectively, and the phenomenon that concrete overflows can not appear in the in-process of repairing, be difficult for causing the waste of concrete, simplify staff's work content by a wide margin, reduce the working strength of crack repair.

(4) The outer surface of the positioning groove is smooth, and the positioning groove needs to be washed by water before pouring cement concrete, so that foreign matters on the surface of the positioning groove are washed away, and the influence on the solidification of the cement concrete poured in the positioning groove is reduced.

(5) The sealing plug comprises a cylindrical plug and a circular truncated cone plug, the cylindrical plug is cylindrical, the circular truncated cone plug is circular truncated cone-shaped, a storage hole matched with the extension spring is formed in the circular truncated cone plug in a chiseled mode, the circular truncated cone plug which is circular truncated cone-shaped is not easy to block by poured cement concrete when being closed, the sealing plug is convenient to close, seal and repair the filling port, and the storage hole is used for storing the extension spring when the sealing plug is closed.

(6) The repair material filling port is internally inserted with a cement injection gun nozzle matched with the cylindrical plug, the cement injection gun nozzle is fixedly connected with a conveying pipeline of a cement mortar spraying grouting machine, and the cement mortar spraying grouting machine pours cement concrete into the positioning groove through the cement injection gun nozzle.

(7) The cement injection gun muzzle includes the injection gun barrel, the one end of injection gun barrel is the blind end, it has a pair of injection gun muzzle to open on the injection gun barrel of injection gun barrel, the inside injection gun muzzle that is linked together with the external world through the injection gun muzzle of injection gun barrel, and the injection gun muzzle is close to the blind end of injection gun barrel, a pair of spacing wing limit of fixedly connected with on the lateral wall of injection gun barrel, the injection gun muzzle is used for pouring cement concrete to the constant head tank in, and spacing wing limit has limiting displacement, it is too dark to make cement injection gun muzzle be difficult for inserting the repair and annotate the material mouth, be difficult.

(8) The spacing flange is cut with the magnetic block groove, and the magnetic block inslot fixedly connected with magnetic block opens the iron plate groove that has the matched with magnetic block groove on the repair plate, and iron plate inslot fixedly connected with iron plate fixes the outside at the constant head tank with cement injection rifle muzzle through the absorption of magnetic block and iron plate, is difficult for taking place to drop.

(9) A pressure sensor is arranged between the magnetic block and the iron block and fixedly connected with the magnetic block, and the pressure sensor is used for measuring the pressure between the magnetic block and the iron block.

(10) The outside parcel of pressure sensor has sealing rubber pad, and sealing rubber pad and magnetic path fixed sealing rubber pad can protect pressure sensor, makes pressure sensor difficult impaired.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a side cross-sectional view of the present invention at a cement gun while repairing a fracture;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of the structure at B in FIG. 2;

FIG. 5 is a side cross-sectional view of a cement block of the present invention;

FIG. 6 is a schematic structural view of a repair plate and a positioning plate according to the present invention;

fig. 7 is a schematic view of the sealing plug of the present invention;

fig. 8 is a schematic structural view of a gun nozzle of the cement injection gun of the present invention.

The reference numbers in the figures illustrate:

1 cement block, 2 aggregate, 3 plant fiber scraps, 4 wall bodies, 5 positioning grooves, 6 cracks, 7 repair plates, 8 positioning plates, 9 repair injection ports, 10 sealing plugs, 1001 cylindrical plugs, 1002 circular truncated cone plugs, 11 positioning rods, 12 extension springs, 13 cement injection gun nozzles, 1301 injection gun barrels, 1302 injection gun nozzles, 1303 limiting wing edges, 14 magnet grooves, 15 magnets, 16 iron block grooves and 17 iron blocks.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1 and 5, a wall structure includes a wall body 4, the wall body 4 is formed by pouring cement concrete, the wall body 4 includes cement blocks 1, the cement blocks 1 are filled with a plurality of aggregates 2, wherein the aggregate 2 can be a material with smaller volume, higher hardness, such as sand or stone, etc., the cement block 1 is filled with a plurality of plant fiber scraps 3, the cement block 1, the aggregate 2 and the plant fiber scraps 3 need to be fully stirred before pouring use, so that the aggregate 2 and the plant fiber scraps 3 are uniformly distributed in the cement block 1, the plant fiber scraps 3 need to be dehydrated before use, and cutting is carried out after the dehydration treatment, the complete plant fiber scraps 3 are cut into three finished products with different specifications of five centimeters, ten centimeters and twenty centimeters, the toughness and the service life of the plant fiber scraps 3 can be greatly improved through the dehydration treatment, and the toughness and the strength of the cement block 1 can be effectively increased by matching the plant fiber scraps 3 with various specifications.

Referring to fig. 2-4, a crack 6 is formed on a wall body 4, a positioning groove 5 is formed on the wall body 4, the positioning groove 5 is located at the crack 6, a repair plate 7 is arranged on one side of the wall body 4 close to the positioning groove 5, a plurality of screws are used for fixing and refining between the repair plate 7 and the wall body 4, one end of the repair plate 7 close to the wall body 4 is fixedly connected with a positioning plate 8 matched with the positioning groove 5, a repair injection port 9 is formed on the repair plate 7, the repair injection port 9 penetrates through the repair plate 7 and the positioning plate 8, a sealing plug 10 matched with the repair injection port 9 is inserted in the repair injection port 9, a pair of positioning rods 11 is fixedly connected to the inner wall of the repair injection port 9, one end of the positioning rod 11 far away from the inner wall of the repair injection port 9 penetrates through the repair injection port 10, a tension spring 12 is connected between the inner wall of the repair injection port 9 and the sealing plug 10, and two ends of, the surface of constant head tank 5 is smooth surface, and need water to erode before pouring cement concrete, wash away the foreign matter on constant head tank 5 surface, reduce the influence to the cement concrete solidification of pouring in constant head tank 5, sealing plug 10 includes cylinder stopper 1001 and round platform stopper 1002, cylinder stopper 1001 is cylindricly, round platform stopper 1002 is the round platform form, it has the hole of depositing with extension spring 12 assorted to open on the round platform stopper 1002, round platform stopper 1002 that is the round platform form is difficult for the cement concrete jam of pouring when closed, make things convenient for sealing plug 10 closed sealed repair sprue 9, and the hole of depositing is then used for depositing extension spring 12 when sealing plug 10 is airtight.

Referring to fig. 6-8, a cement injection gun nozzle 13 matched with the cylindrical plug 1001 is inserted into the repairing injection port 9, one end of the cement injection gun nozzle 13, which is far away from the sealing plug 10, is fixedly connected with a feed pipe of a cement mortar spraying grouting machine, the cement mortar spraying grouting machine pours cement concrete into the positioning groove 5 through the cement injection gun nozzle 13, the cement injection gun nozzle 13 comprises an injection gun barrel 1301, one end of the injection gun barrel 1301 is a closed end, a pair of injection gun ports 1302 are drilled on the injection gun barrel 1301 of the injection gun barrel 1301, the interior of the injection gun barrel 1301 is communicated with the outside through the injection gun ports 1302, the injection gun ports 1302 are close to the closed end of the injection gun barrel 1301, a pair of limiting wing edges are fixedly connected to the side walls of the injection gun barrel 1301, the injection gun ports 1302 are used for pouring cement concrete into the positioning groove 5, and the limiting wing edges 1303 have a limiting function, make cement injection gun rifle mouth 13 difficult for inserting repair sprue 9 too deeply, difficult sealing plug 10 that causes damages, spacing wing edge 1303 go up to cut into magnetic block groove 14, fixedly connected with magnetic path 15 in the magnetic block groove 14, it has with magnetic block groove 14 assorted iron plate groove 16 to cut into on the repair plate 7, fixedly connected with iron plate 17 in iron plate groove 16, fix cement injection gun rifle mouth 13 in the outside of constant head tank 5 through the absorption of magnetic path 15 and iron plate 17, difficult emergence drops, be equipped with pressure sensor between magnetic path 15 and the iron plate 17, and pressure sensor and 15 fixed connection of magnetic path, pressure sensor is used for measuring the pressure between magnetic path 15 and the iron plate 17, pressure sensor's outside parcel has sealing rubber pad, and sealing rubber pad and 15 fixed sealing rubber pad can protect pressure sensor, make pressure sensor difficult impaired.

Two valves are arranged in a conveying pipeline of the cement mortar spraying grouting machine, one valve is a normally closed valve, the other valve is a normally open valve, the normally closed valve is electrically connected with a pressure sensor, when the pressure sensor detects that pressure exists, the normally closed valve is opened, the conveying pipeline can convey cement slurry, and the normally open valve is electrically connected with a switch of the cement mortar spraying grouting machine and is controlled to be opened or closed by a worker.

The invention repairs the cracks which are smaller in part volume and not positioned on the bearing wall, and after the repair is finished, the concrete for repair and the original wall can form a relatively tight connection, can bear and resist pressure together with the original wall, greatly enhances the performance of the original wall with cracks, is convenient for workers to repair, does not have the phenomenon of concrete overflow in the repair process, is not easy to cause concrete waste, greatly simplifies the working content of the workers, and reduces the working strength of the crack repair.

When a crack 6 appears on the surface of the cement block 1, please refer to fig. 5, a plurality of plant fiber cuttings 3 exist on the fracture of the cement block 1, after new cement slurry is injected into the crack 6, the cement slurry can be gradually solidified, and the plant fiber cuttings 3 on the surface of the cement block 1 are wrapped up, and under the action of the plant fiber cuttings 3, the newly filled cement slurry can be tightly connected with the cement block 1, so that the repairing strength of the cement slurry is increased.

The appropriate amount of the expanding agent is mixed into the cement slurry for repairing, so that the volume of the cement slurry for repairing can not be reduced in the curing process, the gap between the positioning groove 5 and the crack 6 caused by the deformation generated in the curing process of the cement slurry for repairing is reduced, and the repairing defect of the cement slurry is reduced.

When cement slurry is injected into the crack 6, please refer to fig. 2-4 and fig. 6-8, the gun nozzle 13 of the cement injection gun is inserted into the repairing injection port 9, the gun nozzle 13 of the cement injection gun pushes the sealing plug 10 open, when the gun nozzle 13 of the cement injection gun is inserted to a certain depth, the limiting wing edge 1303 is contacted with the repairing plate 7, the limiting wing edge 1303 prevents the gun nozzle 13 of the cement injection gun from being inserted continuously, meanwhile, the gun nozzle 13 of the cement injection gun can be firmly hung on the repairing plate 7 through the adsorption between the magnet groove 14 and the iron block 17, at this time, the pressure sensor between the magnet 15 and the iron block 17 senses the pressure, the normally closed valve in the delivery pipe of the cement mortar spraying grouting machine is opened, the worker operates the cement mortar spraying grouting machine again, so that the cement slurry is input into the positioning groove 5 and the crack 6 through the gun nozzle 13 of the cement injection gun, when sufficient cement slurry is injected into the positioning groove 5 and the crack 6, the cement slurry can push the gun nozzle 13 of the cement injection gun and the repairing injection port 9 to the direction far away from the positioning groove 5, after the repairing plate 7 is separated from the limiting wing edge 1303, the pressure sensor positioned outside the magnetic block 15 does not sense the pressure any more, the normally closed valve in the conveying pipe of the cement mortar spraying grouting machine is closed, the conveying pipe of the cement mortar spraying grouting machine stops inputting the cement slurry into the positioning groove 5 and the crack 6, at the moment, the sealing plug 10 returns to the repairing injection port 9 again under the action of the stretching spring 12 in the stretching state, the repairing injection port 9 is closed, the repairing plate 7 and the positioning plate 8 are detached from the surface of the wall body 4 after the cement slurry is completely cured in the positioning groove 5 and the crack 6, and the surface of the cement river surface cured is trimmed.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a wall structure, includes wall body (4), wall body (4) are formed by cement concrete pouring, its characterized in that: the wall surface body (4) comprises a cement block (1), a plurality of aggregates (2) are filled in the cement block (1), wherein the aggregates (2) are sand or stone materials, a plurality of plant fiber scraps (3) are filled in the cement block (1), the aggregates (2) and the plant fiber scraps (3) need to be fully stirred before pouring and using, so that the aggregates (2) and the plant fiber scraps (3) are uniformly distributed in the cement block (1), the plant fiber scraps (3) need to be dehydrated before using and cut after being dehydrated, the complete plant fiber scraps (3) are cut into finished products of five centimeters, ten centimeters and twenty centimeters in three different specifications, a crack (6) is formed in the wall surface body (4), a positioning groove (5) is formed in the wall surface body (4), and the positioning groove (5) is positioned at the crack (6), one side of wall body (4) near constant head tank (5) is equipped with repairs board (7), repair through a plurality of screw fixation between board (7) and wall body (4) and practice the level, repair one end fixedly connected with and constant head tank (5) assorted locating plate (8) that board (7) are close to wall body (4), it has repair sprue (9) to cut a hole on repairing board (7), and repair sprue (9) run through repair board (7) and locating plate (8), it has sealing plug (10) with repair sprue (9) assorted to peg graft in sprue (9), fixedly connected with a pair of locating lever (11) on the inner wall of repair sprue (9), and locating lever (11) keep away from the one end of repairing sprue (9) inner wall and run through sealing plug (10), it is connected with extension spring (12) to repair between sprue (9) inner wall and sealing plug (10), the two ends of the extension spring (12) are fixedly connected with the inner wall of the repairing injection port (9) and the sealing plug (10) respectively, the outer surface of the positioning groove (5) is a smooth surface, the sealing plug (10) comprises a cylindrical plug (1001) and a circular truncated cone plug (1002), the cylindrical plug (1001) is cylindrical, the circular truncated cone plug (1002) is circular truncated cone-shaped, a storage hole matched with the extension spring (12) is formed in the circular truncated cone plug (1002), a cement injection gun nozzle (13) matched with the cylindrical plug (1001) is inserted in the repairing injection port (9), the cement injection gun nozzle (13) comprises an injection gun barrel (1301), one end of the injection gun barrel (1301) is a closed end, a pair of injection gun ports (1302) are formed in the injection gun barrel (1301) of the injection gun barrel (1301), and the interior of the injection gun barrel (1301) is communicated with the outside through the injection gun port (1302), and injection gun muzzle (1302) is close to the blind end of injection gun barrel (1301), a pair of spacing wing limit (1303) of fixedly connected with on the lateral wall of injection gun barrel (1301), spacing wing limit (1303) are gone up and are dug magnetic block groove (14), fixedly connected with magnetic block (15) in magnetic block groove (14), it has iron block groove (16) with magnetic block groove (14) assorted to open and chisel on mending board (7), fixedly connected with iron block (17) in iron block groove (16), be equipped with pressure sensor between magnetic block (15) and iron block (17), and pressure sensor and magnetic block (15) fixed connection, pressure sensor's outside parcel has the sealing rubber pad, and sealing rubber pad and magnetic block (15) fixed connection.