CN210566370U

CN210566370U - Gate valve capable of guaranteeing sealing performance of valve

Info

Publication number: CN210566370U
Application number: CN201921147177.9U
Authority: CN
Inventors: 陈庚
Original assignee: ZHEJIANG HANWEI VALVE MANUFACTURING CO LTD
Current assignee: ZHEJIANG HANWEI VALVE MANUFACTURING CO LTD
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-05-19
Anticipated expiration: 2029-07-22

Abstract

The utility model discloses a guarantee gate valve of valve sealing performance, including rotating the handle and sealing the oral cavity, the downside of rotating the handle is fixed with the valve rod, and the outside of valve rod is connected with stable seat, stable seat's downside is provided with the valve body, and the both sides of valve body are provided with the flange seat, the downside of valve body is provided with the sealing bolt, and the junction of valve body and valve rod installs the sealing washer, the lower extreme of valve rod is fixed with the case, and is provided with sealed the pad on the valve body of the below of case, the outside of flange seat is provided with the seal groove, the downside of valve body is provided with seals the oral cavity. This guarantee gate valve of valve sealing performance is provided with the seal groove, can strengthen the sealing performance between this gate valve and other connecting pieces, still is provided with the mouth of a sealing, can avoid some impurity to block up the junction of valve body and case, and then avoids impurity to influence the sealing performance of valve body and case junction.

Description

Gate valve capable of guaranteeing sealing performance of valve

Technical Field

The utility model relates to the technical field of valves, specifically be a guarantee valve sealing performance's gate valve.

Background

The gate valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters of a conveying medium, and is extremely important for some fluid conveying systems, but some valves often have some problems in the using process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a guarantee gate valve of valve sealing performance to solve the gate valve structure on the existing market that above-mentioned background art provided fairly simplely, be difficult to guarantee the sealing performance of gate valve, some gate valves in addition are in the course of the work, and the junction of its gate case and valve body can be blockked up by some impurity in the fluid, can influence the problem of being connected the leakproofness between gate case and the valve body.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a guarantee gate valve of valve sealing performance, includes and rotates the handle and seals the oral cavity, the downside of rotating the handle is fixed with the valve rod, and the outside of valve rod is connected with stable seat, stable seat's downside is provided with the valve body, and the both sides of valve body are provided with the flange seat, the downside of valve body is provided with the sealing bolt, and the junction of valve body and valve rod installs the sealing washer, the lower extreme of valve rod is fixed with the case, and is provided with sealed the pad on the valve body of the below of case, the outside of flange seat is provided with the seal groove, the downside of valve body is provided with seals the oral.

Preferably, the valve rod is movably connected with the stabilizing seat and the valve body, and the valve rod forms a sealing structure with the valve body through the sealing ring.

Preferably, the stabilizing seat, the valve body, the flange seat and the sealing cavity are all of an integrated structure, and the valve body and the center line of the flange seat are perpendicular to each other.

Preferably, the lower side of the valve core is V-shaped, the external dimension of the valve core is matched with the external dimension of the lower space inside the valve body, and the dimension of the valve core is larger than the inner diameter of the flange seat.

Preferably, the sealing gaskets are arranged at the upper side and the lower side of the joint of the flange seat and the inner side of the valve body respectively, the outer end face of each sealing gasket is flush with the side face of the bottom of the valve body, and the length of each sealing gasket is equal to the width of the valve core.

Preferably, the inner space of the sealing cavity is communicated with the bottom of the inner space of the valve body, the bottom of the inner space of the valve body is smaller than the diameter of the inner space of the sealing cavity, and sealing bolts are mounted at two ends of the sealing cavity.

Compared with the prior art, the beneficial effects of the utility model are that: the gate valve for ensuring the sealing performance of the valve is characterized in that the sealing groove is arranged on the outer side of the flange seat, some sealing media can be placed in the sealing groove to enhance the sealing performance between the gate valve and other connecting pieces and further improve the working performance of the gate valve, the stabilizing seat is arranged on the upper side of the valve body and can improve the moving performance of the valve rod on the valve body and further increase the using performance of the gate valve, the sealing ring is arranged between the valve rod and the valve body and can ensure the sealing performance between the valve rod and the valve body, the sealing gasket is arranged at the joint of the valve body and the valve core and can enhance the sealing performance at the joint of the valve body and the valve core, so that the sealing effect of the gate valve is improved, the working performance of the gate valve is improved, the sealing cavity is arranged on the lower side of the valve body and can prevent some impurities from blocking the joint of the valve body and the valve core and further, still be provided with the bolt of sealing on sealing the oral cavity, can conveniently seal the intracavity sedimentary impurity and clear up the work, and then improved the performance of device.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is a schematic side view of the cross-sectional structure of the present invention.

In the figure: 1. the valve comprises a rotating handle, 2, a valve rod, 3, a stabilizing seat, 4, a valve body, 5, a flange seat, 6, a sealing bolt, 7, a sealing ring, 8, a valve core, 9, a sealing gasket, 10, a sealing groove, 11 and a sealing cavity.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a gate valve for ensuring the sealing performance of a valve comprises a rotating handle 1, a valve rod 2, a stabilizing seat 3, a valve body 4, a flange seat 5, a sealing bolt 6, a sealing ring 7, a valve core 8, a sealing gasket 9, a sealing groove 10 and a sealing cavity 11, wherein the valve rod 2 is fixed on the lower side of the rotating handle 1, the stabilizing seat 3 is connected on the outer side of the valve rod 2, the valve rod 2 is movably connected with the stabilizing seat 3 and the valve body 4, the valve rod 2 forms a sealing structure with the valve body 4 through the sealing ring 7, the working performance of the valve rod 2 can be ensured, the sealing performance between the valve rod 2 and the valve body 4 can be ensured, the valve body 4 is arranged on the lower side of the stabilizing seat 3, the flange seats 5 are arranged on two sides of the valve body 4, the stabilizing seat 3, the valve body 4, the flange seats 5 and the sealing cavity 11 are of an integral structure, the valve body 4 and the center lines, the lower side of the valve body 4 is provided with a sealing bolt 6, a sealing ring 7 is arranged at the joint of the valve body 4 and the valve rod 2, the lower end of the valve rod 2 is fixed with a valve core 8, a sealing gasket 9 is arranged on the valve body 4 below the valve core 8, the lower side of the valve core 8 is V-shaped, the external dimension of the valve core 8 is matched with the external dimension of the lower space inside the valve body 4, the dimension of the valve core 8 is larger than the inner diameter of the flange seat 5, thereby facilitating the sealing connection between the valve core 8 and the valve body 4, ensuring the stable state of the valve core 8 in the valve body 4, two sealing gaskets 9 are arranged, the sealing gaskets 9 are respectively arranged at the upper side and the lower side of the joint of the flange seat 5 and the inner side of the valve body 4, the outer end face of the sealing gasket 9 is flush with the side face at the bottom of the valve body 4, the, the outside of flange seat 5 is provided with seal groove 10, the downside of valve body 4 is provided with seals oral cavity 11, the inner space that seals oral cavity 11 is linked together with the bottom of 4 inner spaces of valve body, and the size of 4 inner spaces of valve body bottom is less than the diameter of 11 inner spaces in seals oral cavity, and seal bolt 6 is all installed at the both ends of sealing oral cavity 11, both can avoid some impurity to block up the junction of valve body 4 and case 8, avoid impurity influence the sealing performance of 4 and case 8 junctions of valve body, can conveniently clear up the work again to the sedimentary impurity in 11 of sealing oral cavity, and then the performance of device has been improved.

The working principle is as follows: when the gate valve for ensuring the sealing performance of the valve is used, firstly, a certain amount of sealing medium is reserved inside the sealing groove 10 on the flange seat 5 and on the connecting piece, then the gate valve is connected with other connecting pieces through the flange seat 5, so that the gate valve can be fixedly installed at a working position, meanwhile, the sealing performance of the gate valve and other connecting pieces can be ensured through the sealing medium inside the sealing groove 10, so that the installation work of the gate valve is completed, then, the handle 1 is rotated, the valve rod 2 is further moved towards the inside of the valve body 4 through the stabilizing seat 3, the valve core 8 is pushed to move downwards inside the valve body 4 in the process that the valve rod 2 moves towards the inside of the valve body 4, when the valve core 8 moves to the bottom side inside the valve body 4, the outer side of the valve core 8 is matched with the shape of the bottom side inside the valve body 4, and then can cut off the space inside the flange seat 5 of both sides of the valve body 4 through the valve core 8, and in the course of connecting the valve core 8 and the valve body 4, the side of the valve core 8 will be attached to the sealing gasket 9 on the inner side of the valve body 4, and then improve the sealing performance of the connection between the valve core 8 and the valve body 4, so as to complete the sealing work of the gate valve, when the gate valve needs to be opened, the handle 1 can be rotated reversely, so that the valve core 8 moves upwards under the action of the valve rod 2, and then the space inside the flange seat 5 can be communicated again, when the fluid flows inside the valve body 4, the impurities in the fluid will fall into the sealing cavity 11 at the lower end of the valve body 4, so as to avoid the impurities from influencing the sealing connection between the valve core 8 and the valve body 4, when the inside of the sealing cavity 11 needs to be cleaned, the gate valve can be closed again, and the, the inside of the sealing cavity 11 can be cleaned in a state of sealing connection between the valve core 8 and the valve body 4 to ensure a normal working state of the gate valve, which is the working process of the gate valve, and the content which is not described in detail in the specification belongs to the prior art which is well known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A gate valve for ensuring the sealing performance of the valve comprises a rotary handle (1) and a sealing cavity (11), and is characterized in that: the downside of rotating handle (1) is fixed with valve rod (2), and the outside of valve rod (2) is connected with stable seat (3), the downside of stable seat (3) is provided with valve body (4), and the both sides of valve body (4) are provided with flange seat (5), the downside of valve body (4) is provided with and seals bolt (6), and the junction of valve body (4) and valve rod (2) installs sealing washer (7), the lower extreme of valve rod (2) is fixed with case (8), and is provided with sealed pad (9) on valve body (4) of the below of case (8), the outside of flange seat (5) is provided with seal groove (10), the downside of valve body (4) is provided with seals oral cavity (11).

2. A gate valve for ensuring sealing performance of the valve as claimed in claim 1, wherein: the valve rod (2) is movably connected with the stabilizing seat (3) and the valve body (4), and the valve rod (2) forms a sealing structure with the valve body (4) through the sealing ring (7).

3. A gate valve for ensuring sealing performance of the valve as claimed in claim 1, wherein: the stabilizing seat (3), the valve body (4), the flange seat (5) and the sealing cavity (11) are all of an integral structure, and the valve body (4) and the center line of the flange seat (5) are perpendicular to each other.

4. A gate valve for ensuring sealing performance of the valve as claimed in claim 1, wherein: the lower side of the valve core (8) is V-shaped, the external dimension of the valve core (8) is matched with the external dimension of the lower space at the inner side of the valve body (4), and the dimension of the valve core (8) is larger than the inner diameter of the flange seat (5).

5. A gate valve for ensuring sealing performance of the valve as claimed in claim 1, wherein: the sealing gaskets (9) are arranged in two numbers, the sealing gaskets (9) are respectively positioned on the upper side and the lower side of the inner side connecting part of the flange seat (5) and the valve body (4), the outer end faces of the sealing gaskets (9) are flush with the side face of the bottom of the valve body (4), and the length of each sealing gasket (9) is equal to the width of the valve core (8).

6. A gate valve for ensuring sealing performance of the valve as claimed in claim 1, wherein: the inner space of the sealing cavity (11) is communicated with the bottom of the inner space of the valve body (4), the size of the bottom of the inner space of the valve body (4) is smaller than the diameter of the inner space of the sealing cavity (11), and sealing bolts (6) are installed at two ends of the sealing cavity (11).