CN203131042U - A single control water spray valve for coal mine fully mechanized mining hydraulic support - Google Patents

Abstract

The utility model discloses a single control water spray valve that confession coal mine fully mechanized hydraulic support used, including the valve body, insert in the valve body with the joint of valve body coupling and be located valve pocket, case, disk seat, ejector pin of valve body, be equipped with water inlet and delivery port on the valve body, be equipped with the inlet port that communicates with the valve pocket of valve body on the joint, the ejector pin is located the case with between the joint, the valve barrel casing is in the outside of ejector pin, and the disk seat is located between valve pocket and the case, the head and the disk seat sealing connection of case still are connected with return spring on the case. Compared with the prior art, the single-control water spraying valve has the advantages of simple structure, convenience in installation and maintenance, simplicity in installation and convenience in maintenance, and capability of ensuring normal production.

Description

A single control water spray valve for coal mine fully mechanized mining hydraulic support

technical field

The utility model relates to a valve, in particular to a single-control water spray valve for fully mechanized mining hydraulic supports in coal mines.

Background technique

The single-control sprinkler valve is mainly used to manually control the opening and closing of the spraying system on the fully mechanized coal mining hydraulic support, and tightly seal the pressure liquid of the water supply pipeline after closing. The current single-control water spray valve has a complex structure, difficult disassembly and assembly, long maintenance time, and the maintenance quality cannot be effectively guaranteed, which seriously affects the normal production.

Utility model content

The technical problem to be solved by the utility model is to provide a single-control water spray valve with a simple structure for the fully mechanized coal mining hydraulic support.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a single-control water spray valve for fully mechanized mining hydraulic supports in coal mines, including a valve body, a joint inserted into the valve body and connected to the valve body, and a The valve sleeve, valve core, valve seat and ejector rod in the valve chamber are provided with water inlet and outlet on the valve body, and the oil inlet hole connected with the valve chamber of the valve body is provided on the joint, and the ejector rod is located at Between the valve core and the joint, the valve sleeve is sleeved on the outside of the ejector rod, and the valve seat is located between the valve sleeve and the valve core. The head of the valve core is sealed and connected to the valve seat, and the valve core is also connected With return spring.

The head of the valve core is a frustum of cone structure.

The utility model adopts the above-mentioned technical scheme. Compared with the prior art, the single-control water spray valve has a simple structure and is convenient for installation and maintenance, that is, simple installation and convenient maintenance, and can ensure normal production.

Description of drawings

Fig. 1 is the cross-sectional view of the single control water spray valve of the present utility model;

The marks in the above figures are: 1. Valve body; 2. Return spring; 3. Valve core; 4. Valve seat; 5. Valve sleeve; 6. Push rod; 7. Joint.

Detailed ways

As shown in Figure 1, it is a single-control water spray valve for a fully mechanized mining hydraulic support of the utility model, which includes a valve body 1, a joint 7 inserted into the valve body 1 and connected to the valve body 1, and a valve body located on the valve body 1. The valve sleeve 5, valve core 3, valve seat 4, and ejector rod 6 in the valve cavity are provided with a water inlet and a water outlet on the valve body 1, and the joint 7 is threadedly connected with the valve body 1, and the joint 7 is provided with The oil inlet hole connected with the valve cavity of the valve body 1, the ejector rod 6 is located between the valve core 3 and the joint 7, the valve sleeve 5 is set on the outside of the ejector rod 6, and the valve seat 4 is also located between the valve sleeve 5 and the valve core 3 Between, the head of the spool 3 is sealed and connected with the valve seat 4, and a return spring 2 is also connected to the spool 3. One end of the return spring 2 is against the inner wall of the end of the valve chamber of the valve body 1, and the other end is against the spool 3. When the single control water spray valve needs to be opened, the hydraulic oil enters the valve chamber of the valve body 1 from the oil inlet hole of the joint 7, pushes the ejector rod 6 to move toward the direction of the valve core 3, and pushes the valve core 3 to align with the valve seat 4. Separated, the water inlet and the water outlet are connected, and the single-control water spray valve is opened.

The valve core 3 and the valve seat 4 of the single control water spray valve are connected by a soft seal, the valve core 3 is made of metal material, and the valve seat 4 is made of polyoxymethylene plastic, which has good sealing performance. Moreover, as shown in FIG. 1 , the head of the spool 3 is a frustum of cone structure, the sealing performance of the parts is good, and the structure of the spool 3 is simpler.

As shown in FIG. 1 , an O-ring is provided between the valve seat 4 , the valve sleeve 5 and the valve body 1 , and an O-ring is also provided between the push rod 6 and the valve sleeve 5 .

The length of the valve body 1 of the single control water spray valve is 86mm, the width is 88mm, and the thickness is 33mm.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited by the above-mentioned methods, as long as various insubstantial improvements are made by adopting the method concept and technical solutions of the utility model, or Directly applying the ideas and technical solutions of the utility model to other occasions without improvement is within the protection scope of the utility model.

Claims (2)

1. A single control water spray valve for fully mechanized mining hydraulic supports in coal mines, comprising a valve body, a joint inserted into the valve body to be connected with the valve body, and a valve sleeve positioned in the valve cavity of the valve body, a valve core, a valve seat, The ejector rod is provided with a water inlet and a water outlet on the valve body, and an oil inlet hole communicating with the valve cavity of the valve body is provided on the joint, and it is characterized in that: the ejector rod is located between the valve core and the joint , the valve sleeve is sleeved on the outside of the push rod, the valve seat is located between the valve sleeve and the valve core, the head of the valve core is sealed and connected to the valve seat, and a return spring is also connected to the valve core. 2. The single-control water spray valve for fully mechanized mining hydraulic support in coal mine according to claim 1, characterized in that: the head of the valve core is a truncated cone structure.

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