CN211548894U

CN211548894U - Grouting head

Info

Publication number: CN211548894U
Application number: CN201921789430.0U
Authority: CN
Inventors: 林海侠; 王新; 马鑫; 马力; 吕继峰
Original assignee: Dongfang Yuhong Intelligent Equipment Co ltd
Current assignee: Beijing Hongtong Engineering Survey Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-09-22
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a slip casting head, include: one end of the grouting pipe is provided with a grouting nozzle, and the other end of the grouting pipe is used for connecting a connector; the check valve is arranged in the grouting pipe and used for preventing the grouting liquid from flowing back to the connector through the grouting pipe; filling structure, filling structure include nut and rubber circle, and the nut is close to the other end of slip casting pipe and passes through threaded connection with the outer wall of slip casting pipe, and the slip casting pipe is located to the rubber circle cover and is located between slip casting mouth and the nut, can extrude the rubber circle through swivel nut, makes the external diameter inflation of rubber circle, fills up the gap between the outer wall of slip casting pipe and the pore wall in slip casting hole. The grouting head can penetrate into the grouting hole, so that the grouting head has no exposed part and does not need to be cut off, the backflow of grouting liquid is avoided, and the leakage problem can be fundamentally solved.

Description

Grouting head

Technical Field

The utility model belongs to the technical field of it is waterproof, more specifically, relate to a slip casting head.

Background

Along with the continuous development of cities, the living standard of residents is continuously improved, the quantity of motor vehicles kept is continuously increased, and parking spaces are increasingly tense. Obvious shortage appears in most city parking stall, builds underground parking garage and can partially alleviate urban parking stall demand. However, the large underground garage almost has the leakage phenomenon and is difficult to completely treat. The problems of water leakage of settlement joints, water leakage of structural cracks, water leakage of post-pouring belts, water leakage of wall pipes and the like of the basement are endless. The basement water seepage problem influences the normal use of basement, also makes building structure have the potential safety hazard simultaneously.

At present, the maintenance of leakage water generally adopts a shallow grouting technology, namely, a section which is suitable for top is defined on concrete of a leakage part according to the area of the leakage part to directly perform punching grouting for maintenance. When the method is used for maintenance, the effect of stopping leakage can be achieved immediately, but new leakage can occur around the original leakage point along with the lapse of time. Because the method only stops the leakage on the concrete surface layer, the leakage water comes from the underground water pressure outside the concrete structure layer of the wall body or the bottom plate, and when the water leaks on the surface of the concrete structure, the water is spread and diffused in the concrete structure, and the leakage problem can not be solved from the source when the leakage stops.

The existing shallow grouting technology adopts a grouting head which is an integrated structure with a grouting pipe with a certain length and comprises a grease nipple, a lengthened hexagon nut, a gasket, a rubber ring and a hollow screw, when the shallow grouting device is used, a shallow hole with the diameter of 14mm is drilled on the surface of leaked concrete, the rubber ring part of the grouting head is plugged into the hole, the grease nipple and the lengthened hexagon nut part are exposed out of the surface layer of the concrete, and the lengthened hexagon nut is screwed down to expand the rubber ring; during grouting, the grouting machine is connected with a grease nipple through a butter head for grouting, the butter head is taken down after the grouting is finished, the exposed screw is connected with a lengthened hexagonal nut and cut off after the grout is solidified, and then the hole is filled and ground by using a quick-drying material.

The diameter of a central through hole of a grease nozzle used by the grouting head is generally about 1.5mm, and large-flow grouting cannot be realized; the end part of the hollow screw is of a parallel structure, and when the hollow screw penetrates into the grouting hole, no enough space exists between the hollow screw and the structure of the part where the hollow screw is located, so that the spreading and the diffusion of grouting materials are inconvenient; the grouting head cannot penetrate into the grouting hole to a sufficient depth, and excessive grouting material is filled due to the fact that the space of the grouting hole is too large; because this kind of slip casting head can only be at the seepage gap slip casting on concrete surface, consequently need be separated by a certain distance and place a plurality of slip casting heads, and because of its check valve is in the fracture department, need wait for the thick liquid solidification after the slip casting is accomplished and just can amputate the body of rod, otherwise because the check valve is amputated, the phenomenon that the thick liquid refluxes can appear, leads to the slip casting hole sealed not tight, has the seepage hidden danger.

Therefore, the grouting head which can be deeply arranged in the grouting hole is expected to be developed, the grouting head does not have an exposed part, the grouting head does not need to be cut off, the backflow of grouting liquid is avoided, and the leakage problem can be fundamentally solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a slip casting head can go deep into the inside no part that exposes of slip casting hole, need not cut off, avoids the slip casting liquid backward flow.

In order to achieve the above object, the utility model provides a slip casting head, include:

the grouting pipe is provided with a grouting nozzle at one end, and the other end of the grouting pipe is used for connecting a connector;

the check valve is arranged in the grouting pipe and used for preventing grouting liquid from flowing back to the connector through the grouting pipe;

filling structure, filling structure includes nut and rubber circle, the nut is close to the slip casting pipe the other end and with the outer wall of slip casting pipe passes through threaded connection, the rubber circle cover is located the slip casting pipe just is located slip casting mouth with between the nut, through rotatory the nut can extrude the rubber circle makes the external diameter inflation of rubber circle is filled up gap between the outer wall of slip casting pipe and the pore wall in slip casting hole.

Preferably, the inner wall of the grouting pipe is stepped and comprises a large-diameter section and a small-diameter section which are communicated with each other, and the large-diameter section is close to one end of the grouting pipe.

Preferably, the check valve is arranged in the large-diameter section and comprises a check steel ball, a spring and a limiting ring, the limiting ring is arranged on the inner wall of the large-diameter section, one end of the spring is connected with the limiting ring, and the other end of the spring is connected with the check steel ball, so that the check steel ball is supported by the spring to seal the communication position of the large-diameter section and the small-diameter section.

Preferably, the limiting ring is a hollow dental canal, and the outer wall of the limiting ring is in threaded connection with the inner wall of the large-diameter section.

Preferably, the diameter of the small diameter section is at least 4 mm.

Preferably, the side wall of the end part of the grouting nozzle is in a sawtooth shape.

Preferably, the filling structure still includes the gasket, the rubber circle is a plurality of, the gasket sets up in adjacent two between the rubber circle, the rubber circle with between the slip casting mouth, the rubber circle with between the nut.

Preferably, the other end of the grout tube is tapered.

Preferably, the slip casting pipe is connected with the connector through threads.

Preferably, the grouting pipe is connected with the grouting nozzle through threads.

The beneficial effects of the utility model reside in that:

1. the slip casting head of this scheme can go deep into slip casting pore structure inside and carry out deep slip casting, solve the seepage problem from the seepage root cause, the slip casting head can not expose on the concrete surface, and can with the separation use of the ware of plugging into, need not the rupture, not only save man-hour but also pleasing to the eye, and be equipped with the check valve in the slip casting head, can avoid the phenomenon of thick liquid backward flow, can be at a plurality of slip casting heads of the downthehole installation of same slip casting, realize multi-level, multiple material shutoff operation, can be in the different degree of depth department secondary or many times slip casting of a slip casting hole, restore whole seepage position, both practice thrift the use amount of slip casting head and reduce seepage position repair vestige on surface again.

2. The diameter of the small-diameter section is at least 4mm, and the caliber of grouting is increased, so that large-flow grouting is achieved.

3. The lateral wall of the tip of thick liquid mouth is the zigzag, has guaranteed to have the space that the thick liquid flows between slip casting head and slip casting pore structure, even put into the deepest of slip casting pore with the slip casting head, also can let the thick liquid fully circulate from the slip casting head lateral wall, reaches good slip casting effect, guarantees the slip casting effect.

4. The end of the grouting pipe connected with the connector is designed to be conical, which is beneficial to the sealing connection with the connector and can bear ultrahigh pressure grouting.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present invention.

Fig. 1 shows a schematic block diagram of a grouting head according to an embodiment of the invention.

Fig. 2 shows an exploded view of a grouting head according to an embodiment of the invention.

Description of the reference numerals

1. A rubber ring; 2. a gasket; 3. a spring; 4. a grouting nozzle; 5. a limiting ring; 6. a non-return steel ball; 7. a nut; 8. a grouting pipe; 9. a large diameter section; 10. a small diameter section.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

According to the utility model discloses a slip casting head, include:

one end of the grouting pipe is provided with a grouting nozzle, and the other end of the grouting pipe is used for connecting a connector;

the check valve is arranged in the grouting pipe and used for preventing the grouting liquid from flowing back to the connector through the grouting pipe;

filling structure, filling structure include nut and rubber circle, and the nut is close to the other end of slip casting pipe and passes through threaded connection with the outer wall of slip casting pipe, and the slip casting pipe is located to the rubber circle cover and is located between slip casting mouth and the nut, can extrude the rubber circle through swivel nut, makes the external diameter inflation of rubber circle, fills up the gap between the outer wall of slip casting pipe and the pore wall in slip casting hole.

Specifically, the slip casting head of this scheme can go deep into slip casting pore structure inside and carry out deep slip casting, solve the seepage problem from the seepage root cause, the slip casting head can not expose on the concrete surface, and can with the separation and use of the ware of plugging into, need not the rupture, not only save man-hour but also pleasing to the eye, and be equipped with the check valve in the slip casting head, can avoid the phenomenon of thick liquid backward flow, can be at a plurality of slip casting heads of same downthehole installation of slip casting, realize multi-level, multiple material shutoff operation, can be in the different degree of depth department secondary or many times slip casting of a slip casting hole, restore whole seepage position, the use amount of both practicing thrift the slip casting head reduces seepage position repair vestige on surface again.

Through nut and rubber circle among the filling structure, realize the firm shutoff of slip casting head in the injected hole, avoid the thick liquid to ooze from between the lateral wall in injected hole and the slip casting head.

As a preferred scheme, the inner wall of the grouting pipe is in a step shape and comprises a large-diameter section and a small-diameter section which are communicated with each other, and the large-diameter section is close to one end of the grouting pipe.

As preferred scheme, the check valve is located in the major diameter section, including non return steel ball, spring and spacing ring, the spacing ring sets up on the inner wall of major diameter section, and the one end of spring is connected in the spacing ring, and the other end is connected in the non return steel ball, makes the non return steel ball seal the intercommunication department of major diameter section and minor diameter section under the support of spring.

As preferred scheme, the spacing ring is hollow dental canal, and the outer wall of spacing ring passes through threaded connection with the inner wall of major diameter section.

Preferably, the small diameter section has a diameter of at least 4 mm.

Specifically, the diameter of the small-diameter section is at least 4mm, and the caliber of grouting is increased, so that large-flow grouting is achieved.

Specifically, the lateral wall of the tip of thick liquid mouth is the zigzag, has guaranteed to have the space that the thick liquid flows between slip casting head and slip casting pore structure, even put into the deepest of slip casting pore with the slip casting head, also can let the thick liquid fully circulate from slip casting head lateral wall, reaches good slip casting effect, guarantees the slip casting effect.

As preferred scheme, filling structure still includes the gasket, and the rubber circle is a plurality of, and the gasket sets up between two adjacent rubber circles, between rubber circle and the slip casting mouth, between rubber circle and the nut.

Specifically, the gasket is arranged to protect the rubber ring, and the expansion effect and the sealing strength are improved.

Preferably, the other end of the grouting pipe is tapered.

Specifically, the end of the grouting pipe connected with the connector is in a conical design, which is beneficial to the sealing connection with the connector and can bear ultrahigh-pressure grouting.

Preferably, the grouting pipe is connected with the connector through threads.

Particularly, the threaded connection is convenient to disassemble, and the connection effect and the sealing performance of a connection sign are achieved.

Examples

Fig. 1 shows a schematic configuration diagram of a grouting head according to the present embodiment; fig. 2 shows an exploded view of the grouting head according to the present embodiment.

As shown in fig. 1 to 2, the grouting head includes:

the grouting pipe 8 is provided with a grouting nozzle 4 at one end, the end part of the grouting nozzle 4 is sawtooth-shaped, the other end of the grouting pipe 8 is conical and is used for sealing with the connector, the outer wall of the grouting pipe 8 is provided with threads, the inner wall of the connector is in threaded connection with the outer wall of the grouting pipe 8, the inner wall of the grouting pipe 8 is in a step shape and comprises a large-diameter section 9 and a small-diameter section 10 which are mutually communicated, the large-diameter section 9 is close to one end of the grouting pipe 8, which is provided with the grouting nozzle 4, the small-diameter section 10 is 4mm in diameter, a check valve is arranged in the large-diameter section 9 and is used for preventing grouting from flowing back to the connector through the grouting pipe 8, the check valve comprises a check steel ball 6, a spring 3 and a limit ring 5, the limit ring 5 is arranged on the inner wall of the large-diameter section 9, one end of the spring 3 is connected to the limit ring 5, the other end is connected to the check steel ball 6, and the check steel ball, the limiting ring 5 is a hollow dental canal, and the outer wall of the limiting ring 5 is connected with the inner wall of the large-diameter section 9 through threads; filling structure includes nut 7 and rubber circle 1, nut 7 is close to the other end of slip casting pipe 8 and passes through threaded connection with the outer wall of slip casting pipe 8, slip casting pipe 8 is located to 1 cover of rubber circle and is located between slip casting mouth 4 and the nut 7, can extrude rubber circle 1 through swivel nut 7, make the external diameter inflation of rubber circle 1, fill up the gap between the outer wall of slip casting pipe 8 and the pore wall in slip casting hole, filling structure still includes gasket 2, rubber circle 1 is 3, gasket 2 sets up between two adjacent rubber circles 1, between rubber circle 1 and slip casting mouth 4, between rubber circle 1 and the nut 7.

The scheme designs a special deep grouting head for deep grouting, which is used in a deep grouting technical system of a concrete structure, and realizes the use of a separated deep grouting head and a connector through tool equipment such as a special deep grouting connector, a grouting machine and the like, and can install a plurality of grouting heads in the same grouting hole to realize multi-layer and multi-material plugging operation; the 4mm large-caliber design is adopted, the cross-sectional area is more than 7 times of the 1.5mm caliber of the grease nipple, and the flow and pressure of grouting can be obviously improved; in addition, in order to cooperate with the deep grouting technology, the end part of the grouting nozzle adopts a zigzag design, so that the grout can be fully circulated even if the grouting nozzle is placed at the deepest part of a drilled hole, and a good grouting effect is achieved; the grouting head of this scheme can directly send into the grouting hole deepest with the grouting head, only needs to take out special slip casting connector after the slip casting is accomplished, and the grouting head does not have the part that exposes, need not cut off.

In addition, the diameter of the grouting head can be increased to 18mm according to requirements, and the grouting head can be placed in a deep hole with the drilling depth of more than 550m according to the thickness of building concrete. And according to the leakage condition, secondary or repeated grouting can be carried out at different depths in one drilling hole so as to achieve the best grouting effect and reduce the repair traces on the surface of the leakage part.

Has the advantages that:

1. through the deep grouting technical idea, a special deep grouting head is designed to be used in a deep grouting technical system of a concrete structure, through tool equipment such as a special deep grouting connector and a grouting machine, the use of a separated deep grouting head and a connector is realized, a plurality of grouting heads can be installed in the same grouting hole, and multi-layer and multi-material plugging operation is realized.

2. The large-flow grouting is achieved by increasing the caliber of the grouting pipe.

3. The end of the grouting nozzle is designed into a sawtooth shape, so that the grouting effect of the grouting head in the deepest part of the drilled hole is guaranteed.

4. One end of the connection pipe adopts a conical design, realizes the sealing connection with the connector and can bear ultrahigh pressure grouting.

5. The grouting head is sent to the deep part of the drill hole, so that multi-level and multi-material grouting can be realized.

6. Can go deep into inside the structure, and be equipped with the check valve in the slip casting head, avoid the slip casting head to expose on the concrete surface to and the phenomenon of thick liquid backward flow.

While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A grouting head, characterized by comprising:

2. The grouting head of claim 1, wherein the inner wall of the grouting pipe is stepped and comprises a large diameter section and a small diameter section which are communicated with each other, and the large diameter section is close to the one end of the grouting pipe.

3. The grouting head according to claim 2, wherein the check valve is disposed in the large diameter section and includes a check steel ball, a spring and a limit ring, the limit ring is disposed on an inner wall of the large diameter section, one end of the spring is connected to the limit ring, and the other end of the spring is connected to the check steel ball, so that the check steel ball seals a communication position between the large diameter section and the small diameter section under the support of the spring.

4. The grouting head of claim 3, wherein the limiting ring is a hollow tooth pipe, and the outer wall of the limiting ring is in threaded connection with the inner wall of the large-diameter section.

5. The grouting head of claim 2, characterized in that the diameter of the small diameter section is at least 4 mm.

6. The grouting head of claim 1, characterized in that the side walls of the end of the grouting mouth are serrated.

7. The grouting head according to claim 1, wherein the filling structure further comprises a plurality of gaskets, and the gaskets are arranged between two adjacent rubber rings, between the rubber rings and the grouting nozzle, and between the rubber rings and the nut.

8. The grouting head of claim 1, wherein the other end of the grouting pipe is tapered.

9. The grouting head of claim 1, wherein the grouting pipe is connected with the adapter by a thread.

10. The grouting head of claim 1, wherein the grouting pipe is connected with the grouting nozzle by threads.