CN217736310U

CN217736310U - Wear-resistant threaded soft seal gate valve

Info

Publication number: CN217736310U
Application number: CN202221327356.2U
Authority: CN
Inventors: 陈金钻; 陈家鸿; 陈佳辉; 陈佳斌; 陈丽婷
Original assignee: Benxing Valve Manufacturing Co ltd
Current assignee: Benxing Valve Manufacturing Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-11-04
Anticipated expiration: 2032-05-30

Abstract

The utility model provides a soft sealing gate valve of thread mouth of stand wear and tear, including valve body, liftable set up in valve clack in the valve body, still including set up in the valve clack with be used for between the valve body prevent after the valve clack descends to the predetermined position the valve clack descends once more and leads to the valve clack with the impaired loss prevention device of valve body leakproofness, the valve clack prevents through the loss prevention device that the valve clack descends once more after descending to the predetermined position, prevents that the continuation decline of valve clack from leading to the valve clack impaired with valve body leakproofness, more does benefit to the long-term use of gate valve.

Description

Wear-resistant threaded soft sealing gate valve

Technical Field

The utility model relates to the technical field of valves, concretely relates to soft sealing gate valve of thread mouth that stand wear and tear.

Background

A valve is a device for controlling the direction, pressure, and flow rate of a fluid in a fluid system, and is a device capable of controlling the flow rate of a medium (liquid, gas, or powder) in a pipe or a device by flowing or stopping the medium.

The soft sealing gate valve, industrial valve, the opening and closing piece of the soft sealing gate valve is a gate plate, the moving direction of the gate plate is vertical to the fluid direction, the gate valve can only be fully opened and fully closed, and can not be adjusted and throttled.

In the prior art, for example, CN202021878135.5, an abrasion-resistant soft sealing gate valve with a threaded opening comprises a valve body, a threaded opening, a gasket, a cover body, a valve cover, a valve rod, a hand wheel, a sealing assembly, an encryption device, a threaded rod, a gate plate, a stabilizing device and a pressure-bearing layer, wherein the threaded opening is symmetrically arranged at the left end and the right end of the valve body, the left end and the right end of the valve body are communicated through the threaded opening, the gasket is symmetrically and fixedly connected at the left end and the right end of the valve body, the gasket is arranged at the outer side of the threaded opening, the top end of the valve body is fixedly connected with the cover body, the cover body and the valve body are integrally formed, the top end of the cover body is provided with the valve cover, the encryption device is arranged between the top end of the cover body and the bottom end of the valve cover body, the middle parts of the top end and the bottom end of the valve cover are penetrated through the valve rod, the sealing assembly is arranged between the valve rod and the inner wall of the valve cover, the valve rod is rotatably connected with the valve cover through a sealing assembly, the valve cover is fixedly connected with the sealing assembly, the top end of the valve rod is fixedly connected with a hand wheel, a threaded rod is arranged at the bottom end of the valve rod and integrally formed with the valve rod, the threaded rod penetrates through the middle part of the top end of the flashboard and is in threaded connection with the flashboard, a stabilizing device is fixedly connected to the upper part of the outer surface of the flashboard, a stabilizing device is arranged on the inner wall of the cover body, a bearing layer is fixedly connected to the middle section of the inner wall of the valve body, the outer side of the bearing layer is movably connected with the flashboard, the encrypting device comprises an inserting ring, a first pressing ring, a first threaded strip, a second threaded strip, a first sealing ring, a second pressing ring, a second sealing ring, a folding ring and a third sealing ring, the inner side of the inserting ring is respectively provided with the first pressing ring and integrally formed with the first pressing ring, the first pressing ring is arranged at the top end of the first threaded strip, a second thread strip is arranged on the outer side of the insert ring, a first sealing ring is arranged at the upper end of the outer surface of the insert ring, a second pressing ring is arranged below the insert ring, and the bottom end of the insert ring and the top end of the second compression ring are respectively clung to the top and bottom ends of the second sealing ring, the inner wall of the second compression ring is provided with a folding ring, the folding ring and the second pressing ring are integrally formed, the folding ring is arranged below the first pressing ring, the bottom end of the first pressing ring and the top end of the folding ring are respectively clung to the top end and the bottom end of the third sealing ring, a first sealing ring is tightly attached between the periphery of the top end of the cover body and the periphery of the bottom end of the valve cover, a second pressing ring on the inner wall of the cover body is integrally formed, the bottom end of the valve cover is integrally formed with an insert ring, the insert ring is in threaded connection with the folding ring through a first threaded strip, the insert ring is in threaded connection with the cover body through a second threaded strip, the stabilizing device comprises an enclosure frame, universal balls, a guide groove strip, an embedded ring and a closed ring, the outer side of the enclosure frame is fixedly connected with a universal ball, the outer surface of the universal ball is movably connected with the inner wall of the guide groove strip, the guide groove strips are arranged on the inner wall of the cover body, the bottom end of the enclosing frame is fixedly connected with the embedded ring, the bottom end of the embedded ring is movably connected with the middle part of the top end of the closed loop, the upper part of the outer surface of the flashboard is respectively and fixedly connected with the surrounding frame and the embedded ring, the periphery of the closed ring is fixedly connected with the lower part of the inner wall of the cover body, the bottom end of the embedded ring is provided with a convex ring, the middle part of the top end of the closed ring is provided with a concave ring, the lower part of the outer surface of the convex ring is mutually embedded with the inner wall of the concave ring, the bottom end of the convex ring is provided with a rubber layer, the inner diameter of the inner wall of the concave ring is gradually increased from bottom to top, the outer surface of the hand wheel is provided with striped anti-skid stripes, the gasket, the first sealing ring, the second sealing ring and the third sealing ring are all made of rubber.

Although the above patent can solve the corresponding technical problems, there still exist certain drawbacks:

the valve clack can not prevent after descending to the predetermined position the valve clack descends once more, and the continuous decline of valve clack after the valve clack descends to the predetermined position easily leads to the valve clack with the valve body leakproofness is impaired, is unfavorable for the long-term use of gate valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a soft sealing gate valve of silk mouth that stand wear and tear to prior art's defect with not enough.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a soft sealing gate valve of stand wear and tear silk mouth, includes the valve body, the liftable set up in valve clack in the valve body, still including set up in between the valve clack with be used for between the valve body prevent after the valve clack descends to the predetermined position the valve clack descends once more and leads to the valve clack with the impaired loss prevention device of valve body leakproofness.

The further improvement is that: the loss prevention device comprises an avoiding groove arranged on the lower end face of the valve clack, and a loss prevention seat arranged on the valve body and located below the avoiding groove, wherein the avoiding groove is matched with the avoiding groove to be used for preventing the valve clack from descending to a preset position and then leading to the valve clack descending again.

The further improvement is that: the loss prevention seat with dodge to be provided with between the groove and prevent that the medium from passing through dodge the groove with the sealed group of junction between the loss prevention seat.

The further improvement is that: sealing group including set up in state loss prevention seat outside sealed crown plate, set up in be located on the valve clack dodge the inslot be used for with sealed crown plate cooperation is receiving elastic deformation's elasticity crown plate takes place when sealed crown plate supports and pushes up.

The further improvement is that: the sealing ring plate is a high manganese steel ring plate, and the elastic ring plate is a rubber ring plate.

After the technical scheme is adopted, the utility model discloses beneficial effect does:

the valve clack prevents through the loss prevention device that the valve clack descends once more after descending to predetermined position, prevents that the continuation decline of valve clack from leading to valve clack and valve body leakproofness impaired, more does benefit to the long-term use of gate valve.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention.

Description of the reference numerals: the valve comprises a valve body 1, a valve clack 2, an avoidance groove 3, a damage prevention seat 4, a sealing ring plate 5 and an elastic ring plate 6.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, the technical solution adopted by the present embodiment is: the utility model provides a soft sealing gate valve of stand wear and tear silk mouth, includes valve body 1, liftable set up in valve clack 2 in the valve body 1, still including set up in valve clack 2 with be used for between the valve body 1 prevent after valve clack 2 descends to predetermined position valve clack 2 descends once more and leads to valve clack 2 with the impaired loss prevention device of 1 leakproofness of valve body. The setting of loss prevention device can improve the wear resistance of valve clack 2 and valve body 1 greatly.

Loss prevention device is including seting up in valve clack 2 lower terminal surface dodge groove 3, set up in lie in on the valve body 1 dodge groove 3 below with dodge the groove 3 cooperation and be used for avoiding valve clack 2 prevents after descending to predetermined position valve clack 2 descends once more and leads to valve clack 2 with the impaired loss prevention seat 4 of 1 leakproofness of valve body.

Loss prevention seat 4 with it prevents to be provided with between the groove 3 and prevents that the medium from passing through to dodge groove 3 with the sealed group of junction between the loss prevention seat 4.

Sealing group including set up in state loss prevention seat 4 outside sealed crown plate 5, set up in valve clack 2 is last to be located dodge in the groove 3 be used for with sealed crown plate 5 cooperation is receiving sealed crown plate 5 takes place elastic deformation's elastic ring plate 6 when supporting.

The sealing ring plate 5 is a high manganese steel ring plate, the elastic ring plate 6 is a rubber ring plate, the sealing ring plate 5 and the elastic ring plate 6 are arranged in a matched mode, so that a soft sealing effect is achieved between the sealing ring plate and the elastic ring plate, after the high manganese steel is treated by an anti-abrasion technology, the surface of the material can reach 500-550 Brinell hardness, the internal flexibility is continuously kept, the surface friction force is minimized, the material has a high hardness characteristic, the rubber is a high-elasticity polymer material with reversible deformation, the rubber is elastic at room temperature, can generate large deformation under the action of small external force, can recover the original shape after the external force is removed, and can generate elastic deformation when the sealing ring plate 5 abuts against the sealing ring plate.

The utility model discloses a theory of operation: after the valve clack 2 is lowered to a preset position, the damage-preventing seat 4 is in abutting fit with the avoiding groove 3 to prevent the valve clack 2 from being lowered again, so that the sealing performance of the valve clack 2 and the valve body 1 is prevented from being damaged due to continuous lowering of the valve clack 2, and long-term use of the gate valve is facilitated; after the valve clack 2 descends to a preset position, the elastic ring plate 6 is propped against the sealing ring plate 5 to generate elastic deformation, and a medium is prevented from passing through a connecting part between the avoiding groove 3 and the damage prevention seat 4.

The utility model discloses what protect is the structure of product, and the model of each component is not the utility model discloses the content of protection, also the well-known technique, as long as can realize on the market the utility model discloses the component of above-mentioned function all can select to use as a thread mouth soft seal gate valve that stands wear and tear. Therefore, the model and other parameters of the components are not described in detail in the present invention. The contribution of the utility model lies in combining all elements scientifically together.

Having shown and described the basic principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims and their equivalents. The details of the present invention are not described in detail, but are well known to those skilled in the art.

Claims

1. The utility model provides a wear and tear soft sealing gate valve of silk mouth, includes valve body, liftable set up in valve clack in the valve body, its characterized in that: the valve comprises a valve body and a valve clack arranged between the valve clack and the valve body, and is characterized by further comprising a damage prevention device which is arranged between the valve clack and the valve body and used for preventing the valve clack from descending again to cause damage to the sealing performance of the valve clack and the valve body after the valve clack descends to a preset position.

2. A wear resistant threaded soft seal gate valve as claimed in claim 1 wherein: the loss prevention device comprises an avoiding groove arranged on the lower end face of the valve clack, and a loss prevention seat arranged on the valve body and located below the avoiding groove, wherein the avoiding groove is matched with the avoiding groove to be used for preventing the valve clack from descending to a preset position and then leading to the valve clack descending again.

3. A wear resistant threaded soft seal gate valve as claimed in claim 2 wherein: the loss prevention seat with dodge to be provided with between the groove and prevent that the medium from passing through dodge the groove with the sealed group of junction between the loss prevention seat.

4. A wear resistant threaded soft seal gate valve as claimed in claim 3 wherein: sealing group including set up in state loss prevention seat outside sealed crown plate, set up in be located on the valve clack dodge the inslot be used for with sealed crown plate cooperation is receiving take place elastic deformation's elastic ring board when sealed crown plate supports and push against.

5. A wear resistant threaded soft seal gate valve as defined in claim 4 wherein: the sealing ring plate is a high manganese steel ring plate, and the elastic ring plate is a rubber ring plate.