CN220891188U

CN220891188U - Grouting valve

Info

Publication number: CN220891188U
Application number: CN202322642234.3U
Authority: CN
Inventors: 王枫; 刘军锋; 洪烨; 蒋炯玮
Original assignee: Suzhou Fengshitang Engineering Technology Co ltd
Current assignee: Suzhou Fengshitang Engineering Technology Co ltd
Priority date: 2023-09-27
Filing date: 2023-09-27
Publication date: 2024-05-03
Anticipated expiration: 2033-09-27

Abstract

The utility model discloses a grouting valve, which comprises a valve body, wherein a coaxially arranged through hole is arranged in the valve body, a plurality of annular grooves are arranged on the outer surface of the valve body at intervals, a valve hole communicated with the through hole is arranged on the outer edge surface of each annular groove, a check rubber ring is sleeved on each annular groove, and the inner surface of the check rubber ring is propped against the valve hole, and the grouting valve is characterized in that: the bottom of the through hole is close to the bottom of the valve body, and the top of the through hole is communicated with the top of the valve body; an annular bulge is arranged at the outer edge of the bottom of each annular groove, an annular space is reserved between the annular bulge and the outer edge surface of each annular groove, and the lower part of the check rubber ring is arranged in the annular space. The utility model improves the service performance and the survival rate of the grouting valve.

Description

Grouting valve

Technical Field

The utility model relates to the field of foundation engineering of building foundations, in particular to a grouting valve.

Background

Grouting after pile pouring means grouting a pile for a certain time after pile forming, cement slurry is injected through a grouting guide pipe preset in a pile body and a pile end and pile side grouting valve connected with the grouting guide pipe, so that soil bodies (including sediment and mud skin) at the pile end and the pile side are reinforced, the bearing capacity of a single pile is improved, and sedimentation is reduced. In the prior art, grout is pressed in mainly by a grouting valve. The grouting valve has a particularly great problem that the reliability of the non-return performance is low, so that concrete slurry or broken stone enters the grouting valve from the side part of the non-return rubber ring in the process of pouring concrete into the pile body before grouting, and the grouting valve is blocked, so that the subsequent usability of the grouting valve is affected.

In order to solve the above technical problems, for example, application number: CN201721598677.5, patent name: the two-purpose valve for flushing and grouting pile foundation, but the products in the above patent have the following defects:

when the grouting valve is installed into the ground, the bottom of the check rubber ring is stressed upwards by each position due to the downward pressing and installing process of the grouting valve, and the bottom of the check rubber ring can be overturned from the lower part of the annular groove, so that the valve hole is exposed, the subsequent valve hole is easily blocked, and the survival rate of the grouting valve is low.

Disclosure of Invention

The utility model aims to provide a grouting valve, which can effectively prevent the grouting valve from being blocked, ensure grouting and flushing quality and improve the use reliability of the grouting valve by using the structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the grouting valve comprises a valve body, wherein a coaxially arranged through hole is formed in the valve body, a plurality of annular grooves are formed in the outer surface of the valve body at intervals, a valve hole communicated with the through hole is formed in the outer edge surface of each annular groove, a check rubber ring is sleeved on each annular groove, the inner surface of each check rubber ring is propped against the valve hole, the bottom of the through hole is close to the bottom of the valve body, and the top of the through hole is communicated with the top of the valve body;

an annular bulge is arranged at the outer edge of the bottom of each annular groove, an annular space is reserved between the annular bulge and the outer edge surface of each annular groove, and the lower part of the check rubber ring is arranged in the annular space.

In the technical scheme, the outer edge surface of the annular protrusion is flush with the outer edge surface of the valve body.

In the technical scheme, the height of the annular bulge is 1/8-1/4 of the width of the annular groove.

In the above technical scheme, the bottom of the valve body is of a conical structure with a big top and a small bottom, and the annular groove is arranged above the conical structure.

In the technical scheme, the check rubber ring is tightly matched with the annular groove.

In the technical scheme, the annular distance is larger than the thickness of the check rubber ring.

In the above technical scheme, the top of valve body is equipped with the annular convex part that extends up, the inner wall of annular convex part with the through-hole flushes the setting, the external diameter of annular convex part is less than the external diameter of valve body, just be equipped with the external screw thread on the surface of annular convex part, the inner wall of annular convex part has the internal screw thread.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1. According to the utility model, the annular bulge is arranged at the outer edge of the bottom of the annular groove, an annular space is reserved between the annular bulge and the outer edge surface of the annular groove, and the bottom of the check rubber ring is arranged in the annular space, so that when the valve body is installed, external covering soil, concrete and the like can be blocked by the annular bulge, and the external covering soil, the concrete and the like can not enter between the check rubber ring and the bottom of the annular groove to turn up the check rubber ring, so that the valve hole can be effectively prevented from being blocked when the valve body is installed, the use reliability of the valve body can be ensured, the survival rate of the grouting valve is ensured, and the follow-up grouting and flushing quality is ensured.

Drawings

FIG. 1 is a schematic view of a first embodiment of the present utility model;

fig. 2 is a partial enlarged view of fig. 1.

Wherein: 1. a valve body; 2. a through hole; 3. an annular groove; 4. a valve hole; 5. a non-return rubber ring; 6. an annular protrusion; 7. annular spacing; 8. an annular convex portion; 9. an external thread; 10. an internal thread; 11. a conical structure.

Detailed Description

The utility model is further described below with reference to the accompanying drawings and examples:

Embodiment one: referring to fig. 1 and 2, a grouting valve comprises a valve body 1, wherein a coaxially arranged through hole 2 is arranged in the valve body 1, a plurality of annular grooves 3 are formed in the outer surface of the valve body 1 at intervals, a valve hole 4 communicated with the through hole 2 is formed in the outer edge surface of each annular groove 3, a check rubber ring 5 is sleeved on each annular groove 3, the inner surface of the check rubber ring 5 abuts against the valve hole 4, the bottom of the through hole 2 is close to the bottom of the valve body 1, and the top of the through hole 2 is communicated with the top of the valve body 1;

An annular bulge 6 is arranged at the outer edge of the bottom of each annular groove 3, an annular space 7 is arranged between the annular bulge 6 and the outer edge surface of each annular groove 3, and the lower part of the check rubber ring is arranged in the annular space.

The bottom of the valve body is a conical structure 11 with a large upper part and a small lower part, and the annular groove is arranged above the conical structure.

In this embodiment, the grouting valve is inserted into the pit bottom of the pile foundation, when the grouting valve is inserted, the pit bottom of the pile foundation (the pit bottom of the pile foundation must be covered with soil if the pile foundation is already filled with concrete, the grouting valve is inserted into the pile foundation when the pile foundation is not solidified) is inserted through the conical structure at the bottom of the grouting valve, in this process, the grouting valve is guided and inserted through the conical structure at the bottom of the grouting valve, in the process of inserting the grouting valve downwards, the outer wall of the grouting valve is subjected to upward extrusion force, if the grouting valve is not provided with the annular bulge, the grouting valve is subjected to upward extrusion force by the covering soil, the concrete, the sand stone and the like, so that the check rubber ring is easily turned up, and the valve hole is opened, so that the covering soil, the sand stone, the concrete and the like enter into the valve hole to cause blockage, therefore, in this embodiment, through the arrangement of the annular bulge and the outer edge of the bottom of the annular groove form an annular space, so that even if an external object enters the inside, the grouting valve can only be extruded between the annular bulge and the check rubber ring, the bottom of the check rubber ring is not turned up, and the survival rate of the grouting valve can be ensured. When the device is used subsequently, high-pressure slurry or high-pressure water is injected into the through hole, the force of the check rubber ring can be broken through, so that the check rubber ring is deformed, the slurry or the high-pressure water can be sent out from between the check rubber ring and the annular groove, the check rubber ring plays a role of a one-way valve, and the one-way water outlet or slurry outlet (slurry) is achieved. In addition, even if the external object blocks the interval between the check rubber ring and the annular bulge, the slurry or water sent out from the valve hole can flow out from the upper part between the check rubber ring and the annular groove, and the use of the grouting valve is not affected.

The outer edge surface of the annular bulge is flush with the outer edge surface of the valve body. Therefore, the resistance of the grouting valve in the pile foundation is not increased, and the convenience and smoothness of the installation of the grouting valve are ensured.

Wherein the height of the annular bulge is 1/8-1/4 of the width of the annular groove. The check rubber ring has the function of protecting the bottom of the check rubber ring, and meanwhile, the check rubber ring is sleeved on the annular groove without being influenced, and the installation of the check rubber ring is not influenced.

Wherein, the non-return rubber circle with the annular groove tight fit. Therefore, the valve hole can be tightly covered, and when the grouting valve is installed, an external object cannot block the valve hole between the check rubber ring and the annular groove.

And the distance value of the annular distance is larger than the thickness of the check rubber ring. When the check rubber ring is installed, the check rubber ring is guaranteed to be normally installed in the annular groove, and the bottom of the check rubber ring is installed in the annular protrusion.

Referring to fig. 1, an annular protrusion 8 extending upward is provided at the top of the valve body 1, the inner wall of the annular protrusion is flush with the through hole, the outer diameter of the annular protrusion is smaller than that of the valve body, an external thread 9 is provided on the outer surface of the annular protrusion, and an internal thread 10 is provided on the inner wall of the annular protrusion.

The setting of annular convex part for with outside water supply pipe, perhaps send the thick liquid pipe to connect, connect through internal thread or external screw thread, guarantee joint strength. The external pipeline can be fixed with the external screw threads of the annular convex part in a threaded manner, and also can be fixed with the internal screw threads in a threaded manner, so that the device is suitable for different types of external pipelines.

Claims

1. The utility model provides a slip casting valve, includes the valve body, be equipped with the through-hole of a coaxial setting in the valve body, the interval is equipped with a plurality of annular grooves on the surface of valve body, be equipped with on the outer fringe face of each annular groove with the valve opening of through-hole intercommunication, each still overlap on the annular groove and be equipped with a check rubber circle, the internal surface of check rubber circle support in on the valve opening, its characterized in that: the bottom of the through hole is close to the bottom of the valve body, and the top of the through hole is communicated with the top of the valve body;

2. The grouting valve of claim 1, wherein: the outer edge surface of the annular bulge is flush with the outer edge surface of the valve body.

3. The grouting valve of claim 1, wherein: the height of the annular bulge is 1/8-1/4 of the width of the annular groove.

4. The grouting valve of claim 1, wherein: the bottom of the valve body is of a conical structure with a large upper part and a small lower part, and the annular groove is arranged above the conical structure.

5. The grouting valve of claim 1, wherein: the check rubber ring is tightly matched with the annular groove.

6. The grouting valve of claim 1, wherein: the annular spacing is larger than the thickness of the check rubber ring.

7. The grouting valve of claim 1, wherein: the top of valve body is equipped with the annular convex part that extends up, the inner wall of annular convex part with the through-hole flushes the setting, the external diameter of annular convex part is less than the external diameter of valve body, just be equipped with the external screw thread on the surface of annular convex part, the inner wall of annular convex part has the internal screw thread.