CN214786229U

CN214786229U - Grouting bolt assembly

Info

Publication number: CN214786229U
Application number: CN202120684886.1U
Authority: CN
Inventors: 杨凤英; 周忠
Original assignee: Weipai Construction Technology Shanghai Co ltd
Current assignee: Weipai Construction Technology Shanghai Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-11-19
Anticipated expiration: 2031-04-02

Abstract

The application relates to a grouting bolt assembly, which comprises a grouting expansion pipe, an expansion nail and a grouting head, wherein the expansion nail is arranged in the grouting expansion pipe and comprises a smooth section and a threaded section of a screw head which are separated from each other; one end of the grouting expansion pipe is arranged to be an expansion end, the other end of the grouting expansion pipe is arranged to be a grouting end, and the side wall of the grouting end is provided with a grouting hole corresponding to a wall body hollow bulge gap; one end of the grouting head is communicated with external high-pressure grouting equipment, one end of the grouting head is communicated with the grouting end, the grouting head comprises a hexagonal pipe body, a lubricating nipple arranged at one end of the hexagonal pipe body and a through hole spherical head arranged at the other end of the hexagonal pipe body, and the through hole spherical head is communicated with the hexagonal pipe body and is in interference fit with the grouting end. This application has the effect that improves the efficiency of slip casting.

Description

Grouting bolt assembly

Technical Field

The application relates to the technical field of building wall restoration, in particular to a grouting bolt assembly.

Background

In the process of repairing and reinforcing the building structure, a grouting technology is needed to be used, and grouting liquid is poured into the hollowing gap of the wall body, so that the wall body is repaired, and the wall body is prevented from falling off.

In the related technology, a wall body is inspected in a knocking mode, the position of the marked hollow drum is grouted, a grouting conical head is matched with a high-pressure grouting machine, and grouting liquid with certain pressure is injected into the hollow drum to realize grouting; and finally, the hole in the wall body is blocked by using the blocking piece to finish the repair.

In view of the above related technologies, the inventor believes that in the related technology, since the grouting conical head needs to extend into different depths for grouting in the use process, the depth to be grouted needs to be measured in advance, then the position is marked on the grouting conical head, and then grouting is performed.

SUMMERY OF THE UTILITY MODEL

In order to improve the efficiency of slip casting, this application provides a slip casting bolt assembly.

The application provides a slip casting bolt subassembly adopts following technical scheme:

a grouting bolt assembly comprises a grouting expansion pipe, an expansion nail and a grouting head, wherein the expansion nail is arranged in the grouting expansion pipe and comprises a smooth section and a threaded section of a separated screw head; one end of the grouting expansion pipe is arranged to be an expansion end, the other end of the grouting expansion pipe is arranged to be a grouting end, and a grouting hole corresponding to a wall body hollowing gap is formed in the side wall of the grouting end; the grouting device comprises a grouting head, a grouting end and a grouting pipe, wherein one end of the grouting head is communicated with external high-pressure grouting equipment, one end of the grouting head is communicated with the grouting end, the grouting head comprises a hexagonal pipe body, a lubricating nipple arranged at one end of the hexagonal pipe body and a through hole spherical head arranged at the other end of the hexagonal pipe body, and the through hole spherical head is communicated with the hexagonal pipe body and is in interference fit with the grouting end.

By adopting the technical scheme, after the hollowing of the wall body is checked, the grouting expansion pipe with the proper depth of the grouting hole on the grouting expansion pipe is selected, the expansion nail is arranged in the grouting expansion pipe and is embedded into the part of the wall body needing grouting; after the thread section is embedded into the expansion end, the expansion end deforms, and the grouting expansion pipe is fixed in the wall body; in the use process, take out the smooth section of screwhead, with the ox oil nipple and outside high-pressure slip casting machine intercommunication of slip casting head, fill in the slip casting end with the spherical head of through-hole, make things convenient for the slip casting end to carry out the slip casting, the slip casting liquid flows out from the slip casting hole department, pours into the hollowing gap of wall body.

Optionally, the grouting end is provided with a non-return gasket.

Through adopting above-mentioned technical scheme, because the slip casting liquid has certain pressure, in order to reduce the slip casting liquid and produce the backward flow, the slip casting liquid that the back wall body direction of slip casting hole overflowed is favorable to the shutoff to the non return gasket.

Optionally, a fixing protrusion is arranged on one side of the check flow gasket, which is close to the expansion end.

Through adopting above-mentioned technical scheme, fixed protruding be favorable to increasing the stability that the gasket was fixed at the wall body that flows that ends.

Optionally, the end of the fixing protrusion is pointed.

Through adopting above-mentioned technical scheme, be the fixed arch of most advanced form and be convenient for insert in the wall body, convenient fixed.

Optionally, the grouting end is provided with a sealing ring sleeved on one side of the non-return gasket provided with the fixing protrusion.

Through adopting above-mentioned technical scheme, the sealing washer is favorable to further increasing the leakproofness between slip casting expansion pipe and the wall body, further reduces the possibility of slip casting liquid backward flow.

Optionally, the end of the grouting end is flared.

Through adopting above-mentioned technical scheme, the slip casting end of flaring form is favorable to making things convenient for the spherical head of through-hole to fill in the slip casting end, and can limit the position of preventing the backward flow gasket simultaneously.

Optionally, a deformation opening is arranged on the expansion end, and the length of the deformation opening is smaller than that of the thread section.

Through adopting above-mentioned technical scheme, at the in-process of slip casting, it overflows from the deformation opening part to reduce the slip casting liquid to save the slip casting liquid.

Optionally, the grouting end is provided with scale marks along the length direction for indicating the depth of the grouting hole.

Through adopting above-mentioned technical scheme, the scale mark is favorable to the user to be convenient for discern the position that the injected hole is deep to conveniently select the slip casting inflation pipe of different specifications, with the user demand that is suitable for the difference.

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

1. in the use, slip casting is accomplished the back, takes off the slip casting head, but repetitious usage, and the slip casting expansion pipe is stayed in the wall body, can also play reinforced (rfd) effect, realizes the dual-purpose function of slip casting expansion pipe and inflation nail, has reduced the shortcoming of manual control slip casting head position, has improved the efficiency and the quality of slip casting.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a sectional view of a grouting head in an embodiment of the present application, which is mainly used for showing an internal structure of the grouting head;

FIG. 3 is an exploded view of the grouting expansion pipe and expansion nail in the embodiment of the application;

fig. 4 is a schematic diagram of the embodiment of the present application in a use state.

Reference numerals: 1. grouting an expansion pipe; 11. an expansion end; 12. grouting end; 13. grouting holes; 14. opening deformation; 2. expansion nails; 21. a screw head smoothing section; 22. a threaded segment; 3. a grouting head; 31. a hexagonal tube body; 32. a butter mouth; 33. a through hole spherical head; 4. a non-return gasket; 41. a fixed protrusion; 5. and (5) sealing rings.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a slip casting bolt assembly. Referring to fig. 1, the grouting bolt assembly includes a grouting expansion pipe 1, an expansion nail 2 and a grouting head 3. The expansion nail 2 is arranged in the grouting expansion pipe 1, and the expansion nail 2 comprises a smooth screw head section 21 and a threaded section 22 which are separated from each other and can be made by cutting a metal screw into two sections. The grouting expansion pipe 1 is made of plastic. One end of the grouting expansion pipe 1 is provided with an expansion end 11, so that the grouting expansion pipe 1 is conveniently and stably fixed in the cavity; the other end is a grouting end 12, and the side wall of the grouting end 12 is provided with a grouting hole 13 corresponding to the hollow gap of the wall. The grouting holes 13 can be provided with a plurality of grouting holes at the same depth to realize grouting in different directions, so that multidirectional grouting can be realized conveniently. One end of the grouting head 3 is communicated with external high-pressure grouting equipment, and the other end of the grouting head is communicated with a grouting end 12. Referring to fig. 2, the grouting head 3 includes a hexagonal tube 31, a butter mouth 32 fixedly connected to one end of the hexagonal tube 31, and a through-hole spherical head 33 fixedly connected to the other end of the hexagonal tube 31, and the through-hole spherical head 33 is communicated with the hexagonal tube 31. The through hole spherical head 33 is in interference fit with the grouting end 12, and after grouting is finished, the grouting head 3 is taken down and can be repeatedly used.

Referring to fig. 3, the end of the grouting end 12 is flared to facilitate insertion of the through-hole ball head 33 into the grouting end 12. The flared grouting end 12 is sleeved with a circular non-return gasket 4. Since the grouting liquid has a certain pressure, in order to reduce the backflow of the grouting liquid, the non-return gasket 4 is beneficial to blocking the grouting liquid overflowing from the grouting hole 13 in the direction opposite to the wall body. The flared grout tip 12 also limits the position of the backflow prevention gasket 4. The backflow prevention gasket 4 is provided with a V-shaped opening, and the V-shaped opening is bent towards the side where the expansion end 11 is located to form a triangular fixing protrusion 41. The triangular protrusion in the shape of a pointed end is convenient to insert into a wall body, and the stability of the check flow gasket 4 fixed on the wall body is increased after the fixing protrusion 41 is inserted into the wall body.

And a sealing ring 5 is sleeved on the grouting end 12 on the side of the backflow-preventing gasket 4 on the fixing protrusion 41. The sealing ring 5 can be made of rubber material, and the existing simple mode can also be made by cutting a latex ring at the air blowing port of the balloon. The sealing ring 5 further increases the sealing performance between the grouting expansion pipe 1 and the wall body, and further reduces the possibility of backflow of grouting liquid.

The outer side of the expansion end 11 is integrally formed with an uneven rough surface to increase the friction force with the wall. And the expansion end 11 is provided with the deformation opening 14, so that the deformation opening 14 can be conveniently opened after the threaded section 22 is inserted, and the fixing stability of the expansion end 11 is further improved. Meanwhile, the length of the deformation opening 14 is smaller than that of the threaded section 22, so that the overflow of grouting liquid from the deformation opening 14 in the grouting process is reduced, and the grouting liquid is saved.

And scale marks for indicating the depth of the grouting holes 13 are arranged on the grouting end 12 along the length direction, the grouting holes 13 on the grouting expansion pipes 1 with different specifications correspond to different scales, and different grouting expansion pipes 1 are selected before grouting. The scale marks facilitate the user to identify the deep position of the grouting hole 13, so that the grouting expansion pipes 1 with different specifications can be conveniently selected to meet different use requirements.

The implementation principle of a slip casting bolt subassembly of this application embodiment does: referring to fig. 4, after the hollowing of the wall body is checked, and the area and the position needing grouting are marked, the grouting expansion pipe 1 with proper specifications is selected, the expansion nail 2 is placed in the grouting expansion pipe 1 and embedded into the wall body, and the effect of reinforcement is achieved. After the threaded section 22 is embedded into the expansion end 11, the expansion end 11 is deformed, and the grouting expansion pipe 1 is stably fixed in the wall body. In the grouting process, the smooth section 21 of the screw head is taken out, the butter mouth 32 of the grouting head 3 is communicated with an external high-pressure grouting machine, the through hole spherical head 33 is plugged into the grouting end 12, the grouting machine is started for grouting, the grouting liquid flows into the hollowing gap of the wall body from the grouting hole 13 until the grouting liquid overflows from the other detection port in the wall body, and the grouting liquid is filled. And after grouting, the taken smooth section 21 of the screw head is plugged into the grouting expansion pipe 1 again to prevent the grouting liquid from flowing backwards.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A grouting bolt assembly, characterized in that: the grouting expansion pipe comprises a grouting expansion pipe (1), an expansion nail (2) and a grouting head (3), wherein the expansion nail (2) is arranged in the grouting expansion pipe (1), and the expansion nail (2) comprises a smooth section (21) and a threaded section (22) of a screw head which are separated from each other; one end of the grouting expansion pipe (1) is provided with an expansion end (11), the other end of the grouting expansion pipe is provided with a grouting end (12), and the side wall of the grouting end (12) is provided with a grouting hole (13) corresponding to a wall body hollow gap; slip casting head (3) one end is linked together with outside high-pressure slip casting equipment, and one end and slip casting end (12) intercommunication, slip casting head (3) include hexagonal body (31), arrange ox oil nozzle (32) of hexagonal body (31) one end in and arrange the spherical head of through-hole (33) of hexagonal body (31) other end in, the spherical head of through-hole (33) with hexagonal body (31) intercommunication and with slip casting end (12) interference fit.

2. A grouting bolt assembly as claimed in claim 1, characterised in that: the grouting end (12) is provided with a non-return gasket (4).

3. A grouting bolt assembly as claimed in claim 2, characterised in that: and a fixing bulge (41) is arranged on one side of the check flow gasket (4) close to the expansion end (11).

4. A grouting bolt assembly as claimed in claim 3, characterised in that: the end of the fixing protrusion (41) is pointed.

5. A grouting bolt assembly as claimed in claim 4, characterised in that: and a sealing ring (5) is sleeved on one side, which is positioned on the grouting end (12), of the backflow stopping gasket (4) and is provided with a fixing bulge (41).

6. A grouting bolt assembly as claimed in claim 1, characterised in that: the end part of the grouting end (12) is flared.

7. A grouting bolt assembly as claimed in claim 1, characterised in that: the expansion end (11) is provided with a deformation opening (14), and the length of the deformation opening (14) is smaller than that of the thread section (22).

8. A grouting bolt assembly as claimed in claim 1, characterised in that: and scale marks for indicating the depth of the grouting holes (13) are arranged on the grouting end (12) along the length direction.