CN212959882U

CN212959882U - Gate valve with good sealing performance

Info

Publication number: CN212959882U
Application number: CN202021874329.8U
Authority: CN
Inventors: 石建国; 郑友团
Original assignee: Fujian Jingjia Valve Co ltd
Current assignee: Fujian Jingjia Valve Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-04-13
Anticipated expiration: 2030-09-01

Abstract

The utility model relates to a gate valve technical field just discloses a gate valve that leakproofness is good, which comprises a valve body, the left side movable mounting of valve body has first sealed the pad, the right side movable mounting of valve body has the sealed pad of second, the top movable mounting of valve body has the valve rod that runs through and extend to the valve body inside, the bottom movable mounting of valve rod has the valve clack, the sealing washer has been cup jointed to the outer wall of valve rod. This gate valve that leakproofness is good, seal up the left end and the right side of valve body through first sealed pad and second, avoid the gate valve to cause the condition of liquid leakage to take place because of connecting unstably in the installation, the gap between valve body and the valve clack is filled in the sealed pressfitting of rethread valve clack and third, it is preliminary sealed to last between valve rod and the valve body through the sealing washer, the valve gap drives the guide cylinder and extrudees the packings and makes the packings fill the clearance between valve body and the valve rod simultaneously, reach simple and convenient multistage sealed effect.

Description

Gate valve with good sealing performance

Technical Field

The utility model relates to a gate valve technical field specifically is a gate valve that leakproofness is good.

Background

Gate valve (gate valve) is an opening and closing member flashboard, the direction of motion of flashboard is perpendicular with the fluid direction, the gate valve only can do full open and close entirely, can not do regulation and throttle, the gate valve seals through disk seat and flashboard contact, normally sealed face can build-up welding metal material in order to increase the wearability, like build-up welding 1Cr13, STL6, stainless steel etc. the flashboard has rigidity flashboard and elasticity flashboard, according to the difference of flashboard, the gate valve divide into rigidity gate valve and elasticity gate valve, the gate valve divide into wedge type and advection type two types according to the structure difference of flashboard, the wedge type flashboard has 3 structures: single gate, double gate and resilient gate.

The traditional gate valve is simple in structure and poor in sealing performance, and liquid leakage is easily caused, so that the gate valve with good sealing performance is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a gate valve that leakproofness is good possesses advantages such as the leakproofness is good, has solved traditional gate valve simple structure, and its sealing performance is poor, leads to the problem of liquid leakage easily.

(II) technical scheme

For the purpose that realizes that above-mentioned leakproofness is good, the utility model provides a following technical scheme: a gate valve with good sealing performance comprises a valve body, wherein a first sealing gasket is movably mounted on the left side of the valve body, a second sealing gasket is movably mounted on the right side of the valve body, a valve rod penetrating through and extending to the inside of the valve body is movably mounted on the top of the valve body, a valve clack is movably mounted at the bottom of the valve rod, a sealing ring is sleeved on the outer wall of the valve rod, a valve cover is movably mounted on the top of the valve body, mounting grooves are formed in the outer walls of the valve body and the valve cover, a limiting ring is movably mounted in the inside of the mounting grooves, a connecting bolt penetrating through and extending to the top of the limiting ring is movably mounted at the bottom of the limiting ring, sealing filler is filled in the inside of the valve body and above the sealing ring, a guide cylinder is sleeved on the outer wall of the valve rod and above the sealing filler, a connecting piece is movably, and a valve wheel is movably arranged at the top of the screw rod.

Preferably, a first mounting groove corresponding to the first sealing gasket is formed in the left side of the valve body, and a second mounting groove corresponding to the second sealing gasket is formed in the right side of the valve body.

Preferably, the connecting holes are formed in the left side and the right side of the valve body and located at the peripheries of the first sealing gasket and the second sealing gasket, and the first sealing gasket and the second sealing gasket are annular sealing rubber rings.

Preferably, the lower part movable mounting that the inner wall bottom of valve body just is located the valve clack has the third to seal up, the quantity of sealing washer is two, the spacing groove that corresponds with the outer wall of valve rod is seted up to the outer wall of valve rod.

Preferably, the number of the mounting grooves and the number of the limiting rings are twelve, twelve mounting grooves are equally divided into two groups, and each group of mounting grooves are distributed on the valve body and the valve cover in a circular array mode.

Preferably, the inner wall of the guide cylinder is provided with a guide groove corresponding to the valve rod, and the inner wall of the valve cover is provided with a thread groove corresponding to the screw rod.

(III) advantageous effects

Compared with the prior art, the utility model provides a gate valve that leakproofness is good possesses following beneficial effect:

the gate valve with good sealing performance is characterized in that the left end and the right side of a valve body are sealed through a first sealing gasket and a second sealing gasket, so that the situation of liquid leakage caused by unstable connection in the installation process of the gate valve is avoided, then a gap between the valve body and the valve clack is filled by pressing the valve clack and a third sealing gasket, finally a part between the valve rod and the valve body is preliminarily sealed through a sealing ring, meanwhile, the valve cover drives a guide cylinder to extrude sealing filler and enables the sealing filler to fill the gap between the valve body and the valve rod, the simple and convenient multi-stage sealing effect is achieved, so that the sealing performance of the valve rod is improved, the valve wheel drives a screw rod to interact with a thread groove on the valve cover and drives the connecting piece and the valve rod to move up and down through a rotary valve wheel, the valve rod drives the valve clack and the valve body to be opened or closed, the simple and convenient use effect, thereby be convenient for take off connecting bolt and spacing ring from valve body and valve gap, reach simple and convenient to assemble and dismantle and the effect of maintaining.

Drawings

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

fig. 2 is an enlarged view of a position a in the structure diagram 1 of the present invention.

In the figure: the valve comprises a valve body 1, a first sealing gasket 2, a second sealing gasket 3, a valve rod 4, a valve clack 5, a sealing ring 6, a valve cover 7, an installation groove 8, a limiting ring 9, a connecting bolt 10, a sealing filler 11, a guide cylinder 12, a connecting piece 13, a screw rod 14 and a valve wheel 15.

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. 1-2, a gate valve with good sealing performance comprises a valve body 1, a first sealing gasket 2 is movably mounted on the left side of the valve body 1, a second sealing gasket 3 is movably mounted on the right side of the valve body 1, a first mounting groove corresponding to the first sealing gasket 2 is formed in the left side of the valve body 1, a second mounting groove corresponding to the second sealing gasket 3 is formed in the right side of the valve body 1, connecting holes are formed in the left side and the right side of the valve body 1 and located at the peripheries of the first sealing gasket 2 and the second sealing gasket 3, the first sealing gasket 2 and the second sealing gasket 3 are both annular sealing rubber rings, a valve rod 4 penetrating and extending into the valve body 1 is movably mounted at the top of the valve body 1, a valve flap 5 is movably mounted at the bottom of the valve rod 4, a sealing ring 6 is sleeved on the outer wall of the valve rod 4, a third sealing gasket is movably mounted at the bottom of the, the outer wall of the valve rod 4 is provided with a limiting groove corresponding to the outer wall of the valve rod 4, the top of the valve body 1 is movably provided with a valve cover 7, the outer walls of the valve body 1 and the valve cover 7 are both provided with mounting grooves 8, the inside of the mounting grooves 8 is movably provided with a limiting ring 9, the number of the mounting grooves 8 and the number of the limiting ring 9 are twelve, twelve mounting grooves 8 are divided into two groups, each group of mounting grooves 8 are respectively distributed on the valve body 1 and the valve cover 7 in a circular array manner, the bottom of the limiting ring 9 is movably provided with a connecting bolt 10 which penetrates through and extends to the top of the limiting ring 9, the inside of the valve body 1 and is positioned above the sealing ring 6 are filled with sealing filler 11, the outer wall of the valve rod 4 and positioned above the sealing filler 11 are sleeved with a guide cylinder 12, the top of the valve rod 4 is movably provided with a connecting piece 13, the top of the connecting, the inner wall of the valve cover 7 is provided with a thread groove corresponding to the screw rod 14, the top of the screw rod 14 is movably provided with a valve wheel 15, the left end and the right end of the valve body 1 are sealed through a first sealing gasket 2 and a second sealing gasket 3, the situation that liquid leakage is caused due to unstable connection in the installation process of the gate valve is avoided, then the valve clack 5 and a third sealing gasket are pressed and filled in a gap between the valve body 1 and the valve clack 5, finally, the valve rod 4 and the valve body 1 are primarily sealed through a sealing ring 6, meanwhile, the valve cover 7 drives a guide cylinder 12 to extrude the sealing filler 11 and enables the sealing filler 11 to fill the gap between the valve body 1 and the valve rod 4, the simple and convenient multi-stage sealing effect is achieved, the sealing performance of the valve rod is improved, the valve wheel 15 is rotated, the valve wheel 15 drives the screw rod 14 to interact with the thread groove on the valve, valve rod 4 drives valve clack 5 and valve body 1 and opens or closed, reaches the effect of simple and convenient use, through unscrewing connecting bolt 10 to upwards or move down spacing ring 9 make spacing ring 9 break away from valve body 1 and valve gap 7, thereby be convenient for take off connecting bolt 10 and spacing ring 9 from valve body 1 and valve gap 7, reach simple easy to assemble dismantlement and maintenance's effect.

In conclusion, the gate valve with good sealing performance seals the left end and the right side of the valve body 1 through the first sealing gasket 2 and the second sealing gasket 3, avoids the liquid leakage caused by unstable connection in the installation process of the gate valve, then presses and fills the gap between the valve body 1 and the valve clack 5 through the valve clack 5 and the third sealing gasket, finally primarily seals the gap between the valve rod 4 and the valve body 1 through the sealing ring 6, simultaneously, the valve cover 7 drives the guide cylinder 12 to extrude the sealing filler 11 and enables the sealing filler 11 to fill the gap between the valve body 1 and the valve rod 4, so as to achieve the effect of simple and convenient multi-stage sealing, thereby improving the sealing performance of the valve rod, through the rotary valve wheel 15, the valve wheel 15 drives the screw rod 14 to interact with the thread groove on the valve cover 7 and drives the connecting piece 13 and the valve rod 4 to move up and down, and the valve rod 4 drives the valve, reach simple effect that facilitates the use, through unscrewing connecting bolt 10 to upwards or move down the spacing ring 9 and make spacing ring 9 break away from valve body 1 and valve gap 7, thereby be convenient for take off connecting bolt 10 and spacing ring 9 from valve body 1 and valve gap 7, reach simple easy to assemble and dismantle and the effect of maintaining, solved traditional gate valve simple structure, its sealing performance is poor, leads to the problem of liquid leakage easily.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a gate valve that leakproofness is good, includes valve body (1), its characterized in that: the left side movable mounting of valve body (1) has first sealed pad (2), the right side movable mounting of valve body (1) has the sealed pad (3) of second, the top movable mounting of valve body (1) has valve rod (4) that runs through and extend to valve body (1) inside, the bottom movable mounting of valve rod (4) has valve clack (5), sealing washer (6) have been cup jointed to the outer wall of valve rod (4), the top movable mounting of valve body (1) has valve gap (7), the outer wall of valve body (1) and valve gap (7) has all been seted up mounting groove (8), the inside movable mounting of mounting groove (8) has spacing ring (9), the bottom movable mounting of spacing ring (9) has connecting bolt (10) that runs through and extend to spacing ring (9) top, the inside of valve body (1) and the top that is located sealing washer (6) fill has sealing filler (11), the outer wall of valve rod (4) and the top that is located sealing filler (11) have cup jointed guide cylinder (12), the top movable mounting of valve rod (4) has connecting piece (13), the top movable mounting of connecting piece (13) has screw rod (14) that runs through and extend to valve gap (7) top, the top movable mounting of screw rod (14) has valve wheel (15).

2. The gate valve of claim 1, wherein: the left side of valve body (1) is seted up the first mounting groove that corresponds with first sealed pad (2), the right side of valve body (1) is seted up the second mounting groove that corresponds with second sealed pad (3).

3. The gate valve of claim 1, wherein: the connecting hole has all been seted up on the left side and the right side of valve body (1) and the periphery that is located first sealed pad (2) and the sealed pad (3) of second, first sealed pad (2) and the sealed pad (3) of second are annular sealing rubber circle.

4. The gate valve of claim 1, wherein: the lower part movable mounting that just is located valve clack (5) in the inner wall bottom of valve body (1) has the third to seal up, the quantity of sealing washer (6) is two, the spacing groove that corresponds with the outer wall of valve rod (4) is seted up to the outer wall of valve rod (4).

5. The gate valve of claim 1, wherein: the number of the mounting grooves (8) and the limiting rings (9) is twelve, twelve the mounting grooves (8) are equally divided into two groups, and each group of the mounting grooves (8) are respectively distributed on the valve body (1) and the valve cover (7) in a circular array.

6. The gate valve of claim 1, wherein: the inner wall of the guide cylinder (12) is provided with a guide groove corresponding to the valve rod (4), and the inner wall of the valve cover (7) is provided with a thread groove corresponding to the screw rod (14).