CN215293843U

CN215293843U - Penetrating gate valve

Info

Publication number: CN215293843U
Application number: CN202121726472.7U
Authority: CN
Inventors: 吴云弟; 吴伟斌; 林霜; 叶张孙; 韩兆雨; 胡西胜; 周婷婷; 叶显卯
Original assignee: Zhejiang Hiton Special Valve Co ltd
Current assignee: Haidun special valve Co.,Ltd.
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-12-24
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a penetrating gate valve, its technical scheme main points are including valve body, fixed connection in the valve actuating mechanism of valve body top, fixed connection in the valve gap of valve body below, by the valve actuating mechanism drive and the flashboard that moves between valve body and valve gap and two disk seats that are located the valve body and are located the flashboard both sides, the water conservancy diversion hole has been seted up on the flashboard, sealing connection has the leak protection shell that supplies the local entering of flashboard between valve actuating mechanism and the valve body, the valve gap is external to have the trachea rather than the inner chamber intercommunication, the trachea is external to have the air pump, ventilates for in the valve gap through the air pump and makes in the valve body the medium can't get into the valve gap, can leak and open and close unsafe problem when having solved prior art transportation dust particle medium.

Description

Penetrating gate valve

Technical Field

The utility model relates to a gate valve technical field, more specifically the penetrating type gate valve that says so relates to.

Background

The penetration gate valve has the function of easily rotating and starting the flashboard through the valve rod to cut off the pipeline logistics, and is a novel high-technology gate valve. The use of the gate valve is developed from the common field to a wider application range, and is developed from mine slag discharge to urban sewage treatment; from general industrial plumbing to food sanitation plumbing. The existing gate valve comprises a valve body, a valve actuating mechanism fixedly connected above the valve body, a valve cover fixedly connected below the valve body, a gate plate connected to an output shaft of the valve actuating mechanism and a valve seat connected in the valve body and attached to the gate plate, wherein a flow guide hole is formed in the gate plate and moves between the valve body and the valve cover; and secondly, in the process that the part of the flashboard provided with the flow guide hole moves into the valve cover, the valve body is communicated with the inner cavity of the valve cover through the flow guide hole, part of the medium flows into the inner cavity of the valve cover, and if the valve cover is closed, the medium is accumulated in the valve cover, so that the maximum distance of downward movement of the flashboard is influenced, and the flashboard cannot completely block the flow of the medium.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a prevent that the dust from leaking and open and close accurate penetrating type gate valve.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a penetrating gate valve, includes valve body, fixed connection in the valve actuating mechanism of valve body top, fixed connection in the valve gap of valve body below, by the drive of valve actuating mechanism and between valve body and valve gap the flashboard that removes and two disk seats that are located the valve body and are located the flashboard both sides, the water conservancy diversion hole has been seted up on the flashboard, sealing connection has the leak protection shell that supplies the local entering of flashboard between valve actuating mechanism and the valve body, the valve gap is external to have the trachea rather than the inner chamber intercommunication, the trachea is external to have the air pump, ventilates for in the valve gap through the air pump and makes in the valve body medium can't get into the valve gap.

As a further improvement of the utility model, a breather pipe is connected between the leakage-proof shell and the air pump.

As a further improvement, the leak-proof shell is detachably connected with an access cover.

As a further improvement of the utility model, the access cover is provided with a handle for applying force by people.

As a further improvement, the disk seat including with the flashboard laminating scrape the material piece, will scrape the seat ring that the material piece is spacing in the valve body and cup joint in scraping the inner ring in the material piece, seat ring and inner ring integrated into one piece, there is the clearance inner ring towards the terminal surface and the flashboard of flashboard.

As a further improvement, the relative flashboard slope of terminal surface of inner ring orientation flashboard sets up, space between inner ring terminal surface and the flashboard is crescent to the valve body center by the valve body outside.

As a further improvement, the cavity volume that the valve body supplied the flashboard to alternate increases invariable again by being close to the direction that the valve body inner chamber extended to the valve body outside gradually.

As a further improvement, the valve cover comprises a valve cover body and a bottom cover covering the valve cover body, and the bottom cover is connected with the air pipe.

The utility model has the advantages that: a leakage-proof shell is arranged between the valve actuating mechanism and the valve body, and compared with the design that the flashboard is exposed outside in the prior art, the leakage of powder particles can be avoided, and the safety is high; the valve cover and the leak-proof shell are respectively connected to the same air pump by the air pipe and the vent pipe, the leak-proof shell and the valve cover are filled with gas by the air pump, and the gas enters the valve body and flows away along with the pipeline; meanwhile, when the flow guide hole enters the valve cover, the medium in the flow guide hole is emptied in time, so that the weight of the flashboard is effectively reduced, the flashboard is convenient to drive, the output power of the valve actuating mechanism is reduced, and energy is saved.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a left side sectional view of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

Reference numerals: 1. a valve body; 2. a valve actuator; 3. a valve cover; 4. a shutter plate; 5. a valve seat; 6. a flow guide hole; 7. a leak-proof shell; 8. an air tube; 9. an air pump; 10. a breather pipe; 11. an access cover; 12. a handle; 13. Scraping the material; 14. a seat ring; 15. an inner ring; 16. a bonnet body; 17. a bottom cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals.

Referring to fig. 1 to 3, the penetrating gate valve of the present embodiment includes a valve body 1, a valve actuating mechanism 2 fixedly connected above the valve body 1, a valve cover 3 fixedly connected below the valve body 1, a gate plate 4 driven by the valve actuating mechanism 2 and moving between the valve body 1 and the valve cover 3, and two valve seats 5 located in the valve body 1 and at two sides of the gate plate 4, wherein the gate plate 4 is provided with a diversion hole 6, and the valve actuating mechanism 2 adopts an electric actuator or a hydraulic actuator;

based on the prior art, a leakage-proof shell 7 for allowing the gate plate 4 to partially enter is connected between the valve actuating mechanism 2 and the valve body 1 in a sealing manner, the joint of the valve actuating mechanism 2 and the leakage-proof shell 7 is sealed by PTFE (polytetrafluoroethylene) filler and is fixed by a filler gland, the end faces of the valve body 1 and the leakage-proof shell 7 are tightly attached, the valve cover 3 is externally connected with an air pipe 8 communicated with the inner cavity of the valve cover, the air pipe 8 is externally connected with an air pump 9, a vent pipe 10 is connected between the leakage-proof shell 7 and the air pump 9, when the gate plate 4 is stable and motionless, the air pump 9 respectively blows air into the valve cover 3 and the leakage-proof shell 7 through the air pipe 8 and the vent pipe 10, the air flows through a gap between the valve seat 5 and the gate plate 4 and enters the inner cavity of the valve body 1 for medium to flow, and the medium in the valve body 1 cannot flow into the valve cover 3 and the leakage-proof shell 7; when the flashboard 4 moves and the flow guide hole 6 moves towards the inside of the valve cover 3, along with the gradual entering of the flow guide hole 6 into the valve cover 3, the medium in the flow guide hole 6 is pushed towards the inside of the valve body 1 by the gas until the flow guide hole 6 completely enters the valve cover 3, the gas can only enter the valve body 1 through the gap between the valve seat 5 and the flashboard 4 and flows away along with the pipeline, and the medium is not filled in the flow guide hole 6 in the valve cover 3; when the flashboard 4 moves and the flow guide hole 6 moves in the valve body 1, the flow guide hole 6 communicates the inner cavity of the valve body 1 with the inner cavity of the valve cover 3, but because the valve cover 3 is filled with gas, the gas flows into the valve body 1 through the flow guide hole 6, so the medium cannot flow into the valve cover 3 until the flow guide hole 6 is positioned in the valve body 1, the gas can only enter the valve body 1 through a gap between the valve seat 5 and the flashboard 4 and flows away along with a pipeline, the flashboard 4 originally in the valve body 1 enters the leakage-proof shell 7 after being scraped by the valve seat 5, the gas flows through the gap while the materials are scraped, the scraping of the medium attached to the flashboard 4 can be accelerated, powder particles can also fly, dust particles which are not scraped by the flashboard 4 can be blown down from the leakage-proof shell 4 along with the gas flowing in the leakage-proof shell 7, and the dust particles are collected in the leakage-proof shell 7;

compared with the design that the flashboard 4 is exposed outside in the prior art, the leakage of powder particles can be avoided, and the safety is high; compared with the design that the air pump 9 is used for filling air into the leakage-proof shell 7 and the valve cover 3 and the air enters the valve body 1 and flows away along with the pipeline, the design that the abrasion between the valve seat 5 and the flashboard 4 is avoided, so that the gap is increased, and the powder particle medium leaks into the leakage-proof shell 7 and the valve cover 3 in the prior art can be avoided, the air tightness of the valve body 1 is improved through the air, the leakage of the medium is prevented, the subsequent opening and closing of the flashboard 4 are facilitated, and the opening and closing accuracy is high; meanwhile, when the flow guide hole 6 enters the valve cover 3, the medium in the flow guide hole 6 is emptied in time, so that the weight of the flashboard 4 is effectively reduced, the flashboard 4 is convenient to drive, the output power of the valve actuating mechanism 2 is reduced, and energy is saved.

As an improved specific embodiment, referring to fig. 1 and 2, powder particles are inevitably accumulated in the leakage-proof shell 7 in the using process, the environment in the leakage-proof shell 7 is deteriorated due to the accumulation of the powder particles, the damage of related parts is accelerated, and the circulation of gas is not facilitated, in order to solve the problem, an access cover 11 is detachably connected to the leakage-proof shell 7, a handle 12 for a person to apply force is arranged on the access cover 11, and the handle 12 facilitates the force application of the maintenance person to the access cover 11; every a period of time, lie in the pipeline the utility model discloses a last valve is closed, treats that the medium has accomplished the back, and air pump 9 stops ventilating, pulls down access cover 11 again, clears up in the leak protection shell 7, clears up the back, and access cover 11 is installed back to the dress, and restart air pump 9 and open last valve resume the medium circulation in the pipeline, and access cover 11's design can regularly be maintained leak protection shell 7, does benefit to the extension the utility model discloses a life.

As an improved specific embodiment, referring to fig. 2 and 3, the valve seat 5 includes a scraping member 13 attached to the gate plate 4, a seat ring 14 limiting the scraping member 13 in the valve body 1, and an inner ring 15 sleeved in the scraping member 13, the seat ring 14 and the inner ring 15 are integrally formed, an end surface of the inner ring 15 facing the gate plate 4 has a gap with the gate plate 4, ends of the scraping member 13 and the inner ring 15 facing the gate plate 4 form a step together, during the scraping process, solid particles on the gate plate 4 are scraped for the first time by the end of the inner ring 15, and then the scraping member 13 scrapes the thinned solid particles for the second time, so that compared with the design of only scraping once by the prior art, the scraping efficiency is improved, the resistance is reduced during the movement of the gate plate 4, and the additional power output by the valve actuating mechanism 2 is reduced;

further optimize, refer to fig. 3, because of powder granule meeting joint in ladder contained angle department, gaseous unable dust granule that blows off, influence scrapes material efficiency, for solving this problem, the relative flashboard 4 slope of the terminal surface of inner ring 15 orientation flashboard 4 sets up, the space between inner ring 15 terminal surface and the flashboard 4 is crescent by the 1 outside of valve body 1 to valve body center, when gaseous inflow valve body 1 was interior, gaseous dust granule that will press from both sides between inner ring 15 and flashboard 4 along the inclined plane blows off, so the design does benefit to follow-up scraping to flashboard 4, improve and scrape material efficiency.

As an improved specific embodiment, referring to fig. 2 and 3, the volume of the cavity of the valve body 1, through which the gate plate 4 is inserted, is gradually increased from the direction near the inner cavity of the valve body 1 and extends to the outside of the valve body 1 and then is constant, and the gas flows into the small space from the large space to cause the gas flow rate to be increased and the gas pressure to be increased, so that dust particle media can be effectively prevented from entering the leakage-proof shell 7 and the valve cover 3, and the media attached to the gate plate 4 can be effectively blown down into the valve body 1 to indirectly scrape the gate plate 4.

As a modified embodiment, refer to fig. 1 and 2, the valve gap 3 is interior to have the inflow and the accumulation of dust granule, can influence the life of relevant spare part unavoidably, and in order to solve this problem, the valve gap 3 is including valve gap body 16 and can dismantle the bottom 17 that the lid fits on valve gap body 16, and bottom 17 links to each other with trachea 8, is closing and is in the utility model discloses after last valve, close air pump 9, pull down bottom 17, clear up the dust granule in the valve gap body 16, after the clearance, back-loading bottom 17 starts air pump 9, resumes the circulation of pipeline, so the design can regularly maintain valve gap 3 and effectively prolong the life of valve gap 3.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a penetrating type gate valve, includes valve body (1), fixed connection in valve actuating mechanism (2) of valve body (1) top, fixed connection in valve gap (3) of valve body (1) below, be driven by valve actuating mechanism (2) and flashboard (4) and two disk seats (5) that are located valve body (1) and are located flashboard (4) both sides that move between valve body (1) and valve gap (3), water conservancy diversion hole (6), its characterized in that have been seted up on flashboard (4): sealing connection has leak protection shell (7) that supply flashboard (4) local entering between valve actuating mechanism (2) and valve body (1), valve gap (3) are external have rather than trachea (8) of inner chamber intercommunication, trachea (8) are external have air pump (9), ventilate in for valve gap (3) through air pump (9) and make in valve body (1) medium can't get into valve gap (3).

2. The penetrating gate valve of claim 1, wherein: an air pipe (10) is connected between the leakage-proof shell (7) and the air pump (9).

3. A piercing gate valve according to claim 1 or 2, characterised in that: an access cover (11) is detachably connected to the leakage-proof shell (7).

4. The penetration gate valve of claim 3, wherein: the access cover (11) is provided with a handle (12) for applying force by a person.

5. A piercing gate valve according to claim 1 or 2, characterised in that: disk seat (5) including with flashboard (4) laminating scrape material spare (13), will scrape seat ring (14) that material spare (13) are spacing in valve body (1) and cup joint in scraping inner ring (15) in material spare (13), seat ring (14) and inner ring (15) integrated into one piece, there is the clearance in terminal surface and flashboard (4) of inner ring (15) orientation flashboard (4).

6. The penetration gate valve of claim 5, wherein: the end face of the inner ring (15) facing the flashboard (4) is obliquely arranged relative to the flashboard (4), and a gap between the end face of the inner ring (15) and the flashboard (4) is gradually increased from the outer side of the valve body (1) to the center of the valve body (1).

7. A piercing gate valve according to claim 1 or 2, characterised in that: the cavity volume that valve body (1) confession flashboard (4) were interlude is invariable again by being close to the direction that valve body (1) inner chamber extended to the valve body (1) outside crescent.

8. A piercing gate valve according to claim 1 or 2, characterised in that: the valve cover (3) comprises a valve cover body (16) and a bottom cover (17) which is detachably covered on the valve cover body (16), and the bottom cover (17) is connected with the air pipe (8).