CN217328627U

CN217328627U - Check valve for grouting pipe

Info

Publication number: CN217328627U
Application number: CN202221082610.7U
Authority: CN
Inventors: 周洋
Original assignee: Hangzhou Jiuqu Pipe Manufacturing Co ltd
Current assignee: Hangzhou Jiuqu Pipe Manufacturing Co ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-08-30
Anticipated expiration: 2032-05-07

Abstract

The utility model discloses a check valve for slip casting pipe, including slip casting pipe and check valve body, the intraductal check valve body that is provided with of slip casting, the check valve body includes the set collar and lower set collar, it welds on the inner wall of slip casting pipe to go up the set collar, the set collar setting is located the set collar under in the slip casting pipe down, the welding has the connecting rod on the set collar outer wall down, and the other end of connecting rod welds each other with the inner wall of slip casting pipe, it has the inserted link to peg graft in the set collar down. The utility model discloses in, this check valve for slip casting pipe, during the slip casting, the nail is filled in the pressure extrusion of the intraductal slurry of slip casting for the spring shrink, then fill the nail and move down, the slurry flows through last position sleeve ring, carries out the slip casting, when the slip casting is accomplished the back, not when the slip casting, fills the nail this moment, when not receiving the extrusion force, the spring kick-back drives to fill the nail and shifts up and block up the position sleeve ring and seal, thereby prevent the intraductal slurry of slip casting and flow back.

Description

Check valve for grouting pipe

Technical Field

The utility model relates to a slip casting pipe technical field especially relates to a check valve for slip casting pipe.

Background

The grouting pipe is a pre-buried grouting pipe system used for permanent sealing of construction joints, cold joints, pipe seepage joints, gaps between ground walls and the like in concrete. It is very suitable to install grout pipes between the joints of new and old concrete. When water penetrates into the joint, the joint can be sealed by injecting slurry into the PVC port set on the surface to seal the joint. The proper grouting time can be selected to perform grouting after the concrete curing is finished. The leak seams can also be made permanently sealed in this way.

The existing grouting pipe does not have a non-return function, and after grouting is finished, the grouting pipe is easy to have a backflow phenomenon, so that cement grout overflows, the grouting effect of the grouting pipe is influenced, and the resource waste is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a check valve for slip casting pipe to solve the problem that provides among the above-mentioned background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a check valve for slip casting pipe, includes slip casting pipe and check valve body, the slip casting intraductal check valve body that is provided with, the check valve body includes the position collar ring and the lower position collar ring, it welds on the inner wall of slip casting pipe to go up the position collar ring, the position collar ring sets up in the slip casting intraductal position of being located the position collar ring under down, the welding has the connecting rod on the position collar ring outer wall down, and the other end of connecting rod welds each other with the inner wall of slip casting pipe, it has the peg graft to peg graft in the position collar ring down, the below threaded connection that the bottom of peg graft is located down the position collar ring has stop nut, the top welding that the top of peg graft is located down the position collar ring has the packing nail.

As a further description of the above technical solution:

and a spring is sleeved between the lower positioning lantern ring and the filling nail on the insertion rod.

As a further description of the above technical solution:

the connecting rods are three in number, the three connecting rods are distributed annularly, and included angles between every two adjacent connecting rods are equal.

As a further description of the above technical solution:

the cross-section of the filling nail is of a circular truncated cone structure, and the diameter of the bottom end of the filling nail is larger than the inner diameter of the upper positioning lantern ring.

As a further description of the above technical solution:

the inner diameter of the lower positioning lantern ring is smaller than that of the upper positioning lantern ring, and the inner diameter of the lower positioning lantern ring is matched with the outer diameter of the insertion rod.

As a further description of the above technical solution:

and the upper surface of the upper positioning lantern ring is welded with a flow guide ring.

The utility model provides a check valve for slip casting pipe. The method has the following beneficial effects:

this check valve for slip casting pipe, through be provided with the check valve body in the slip casting pipe, during the slip casting, the pressure extrusion of the intraductal slurry of slip casting fills the nail, make the spring shrink, then fill the nail and move down, the slurry flows through last position sleeve ring, carry out the slip casting, after the slip casting is accomplished, when not in the slip casting, fill the nail this moment, when not receiving the extrusion force, spring springback drives and fills the nail and shifts up and block up the position sleeve ring and seal, thereby prevent the intraductal slurry reflux of slip casting, further still be provided with the water conservancy diversion ring on last position sleeve ring upper surface, prevent to pile up the slurry on the position sleeve ring, improve the convenience of its clearance.

Drawings

Fig. 1 is a schematic structural view of a check valve for a grouting pipe according to the present invention;

fig. 2 is a cross-sectional view of a check valve for a grouting pipe according to the present invention;

FIG. 3 is a schematic view of the check valve body of the present invention;

fig. 4 is a schematic cross-sectional view of the upper positioning collar of the present invention.

Illustration of the drawings:

1. a grouting pipe; 2. a check valve body; 21. an upper positioning collar; 211. a flow guide ring; 22. a lower positioning collar; 23. a connecting rod; 24. a plug rod; 25. filling nails; 26. a spring; 27. and a limiting nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a check valve for a grouting pipe, including grouting pipe 1 and check valve body 2, be provided with check valve body 2 in the grouting pipe 1, check valve body 2 includes a position lantern ring 21 and a lower position lantern ring 22, it welds on the inner wall of grouting pipe 1 to go up the position lantern ring 21, lower position lantern ring 22 sets up and is located under the position lantern ring 21 in grouting pipe 1, it has connecting rod 23 to weld on the outer wall of lower position lantern ring 22, and the other end of connecting rod 23 welds each other with the inner wall of grouting pipe 1, it has peg 24 to peg graft in the lower position lantern ring 22, the below threaded connection that the bottom of peg 24 is located lower position lantern ring 22 has stop nut 27, the top that peg 24 is located the top of lower position lantern ring 22 welds filling nail 25, it is equipped with spring 26 to lie between lower position lantern ring 22 and filling nail 25 on peg 24.

Specifically, during grouting, the pressure of the slurry in the grouting pipe 1 extrudes the filling nail 25 to cause the spring 26 to contract, then the filling nail 25 moves downwards, the slurry flows out through the upper positioning sleeve ring 21 to perform grouting, after the grouting is finished, when the grouting is not performed, the filling nail 25 does not receive extrusion force at the moment, the spring 26 rebounds to drive the filling nail 25 to move upwards to plug and seal the upper positioning sleeve ring 21, thereby preventing the slurry in the grouting pipe 1 from flowing back,

the number of the connecting rods 23 is three, the three connecting rods 23 are distributed annularly, and included angles between two adjacent connecting rods 23 are equal.

Specifically, the connecting rods 23 are used for welding and fixing the lower positioning lantern ring 22 on the inner wall of the grouting pipe 1, and the stability of welding and fixing of the three connecting rods 23 is improved.

The section of the filling nail 25 is a circular truncated cone structure, and the diameter of the bottom end of the filling nail 25 is larger than the inner diameter of the upper positioning lantern ring 21.

The inner diameter of the lower positioning lantern ring 22 is smaller than that of the upper positioning lantern ring 21, and the inner diameter of the lower positioning lantern ring 22 is matched with the outer diameter of the plug rod 24.

The upper surface of the upper positioning lantern ring 21 is welded with a deflector ring 211.

Specifically, the setting of water conservancy diversion ring 211, the upper surface of last position lantern ring 21 that does not have accumulational thick liquid, the direct landing of thick liquid can be convenient for slip casting 1.

The working principle is as follows: this check valve for slip casting pipe uses, during the slip casting, the pressure extrusion of the interior slurry of slip casting pipe 1 is filled nail 25 for spring 26 contracts, then fills nail 25 and moves down, and the slurry flows out through last position collar ring 21, carries out the slip casting, and when the slip casting was accomplished the back, when not being slip casting, the nail 25 of filling this moment is not when receiving the extrusion force, and spring 26 kick-backs and drives and fill nail 25 and move up and block up sealed to last position collar ring 21, thereby prevents the interior slurry reflux of slip casting pipe 1.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A check valve for a grouting pipe, which comprises a grouting pipe (1) and a check valve body (2), it is characterized in that a non-return valve body (2) is arranged in the grouting pipe (1), the check valve body (2) comprises an upper positioning lantern ring (21) and a lower positioning lantern ring (22), the upper positioning sleeve ring (21) is welded on the inner wall of the grouting pipe (1), the lower positioning sleeve ring (22) is arranged in the grouting pipe (1) and is positioned right below the upper positioning sleeve ring (21), the outer wall of the lower positioning sleeve ring (22) is welded with a connecting rod (23), and the other end of the connecting rod (23) is welded with the inner wall of the grouting pipe (1), an inserting rod (24) is inserted in the lower positioning lantern ring (22), the bottom end of the inserting rod (24) is positioned below the lower positioning lantern ring (22) and is connected with a limit nut (27) through a thread, the top end of the insertion rod (24) is positioned above the lower positioning lantern ring (22) and welded with a filling nail (25).

2. A non-return valve for a grouting pipe according to claim 1, characterised in that a spring (26) is fitted over the spigot rod (24) between the lower locating collar (22) and the filling nail (25).

3. The check valve for the grouting pipe as claimed in claim 1, wherein there are three connecting rods (23), and the three connecting rods (23) are distributed annularly, and the included angles between two adjacent connecting rods (23) are equal.

4. A non-return valve for grouting pipes according to claim 1, characterised in that the cross-section of the filling nail (25) is of a truncated cone type structure, the diameter of the bottom end of the filling nail (25) being greater than the internal diameter of the upper locating collar (21).

5. The check valve for the grouting pipe as claimed in claim 1, wherein the inner diameter of the lower retainer ring (22) is smaller than the inner diameter of the upper retainer ring (21), and the inner diameter of the lower retainer ring (22) is adapted to the outer diameter of the plug rod (24).

6. The check valve for the grouting pipe as claimed in claim 1, wherein a deflector ring (211) is welded to the upper surface of the upper retainer ring (21).