CN212839451U

CN212839451U - Low-temperature stop valve

Info

Publication number: CN212839451U
Application number: CN202020571998.1U
Authority: CN
Inventors: 林祥宜
Original assignee: Shanghai Power Plant Valve Co ltd
Current assignee: Shanghai Power Plant Valve Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-03-30
Anticipated expiration: 2030-04-16

Abstract

The utility model relates to a low temperature stop valve, including the stop valve body, the left end face of stop valve body has seted up the import, and the export has been seted up to the right-hand member face of stop valve body, and the stop valve body just is located and has seted up through-hole one between import and the export, and the mounting hole has been seted up at the top of stop valve body, and the inside of mounting hole is pegged graft there is the valve gap, and the outside of valve gap just is located the inside fixed cover of mounting hole and has connect the sealing washer, and the top of valve gap is to having seted up threaded. This low temperature stop valve, when sealed seat circle appears damaging when unable using, to draw the connecting rod to the top to drive sealed seat circle and remove along two through-holes, thereby take out sealed seat circle and change, thereby realize changing the convenient target of sealed seat circle.

Description

Low-temperature stop valve

Technical Field

The utility model relates to a stop valve technical field specifically is a low temperature stop valve.

Background

Inside seal seat circle of low temperature stop valve on the current market generally all be the through-hole of direct mount between import and export inside, realize the function of low temperature stop valve through the extrusion of valve clack to seal seat circle, but because seal seat circle in the inside of low temperature stop valve, when seal seat circle appears damaging and can not use, need take the low temperature stop valve apart just can change, it is troublesome to worsen seal seat circle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low temperature stop valve reaches the convenient purpose of change sealing washer seat circle.

In order to achieve the above object, the utility model provides a following technical scheme: a low-temperature stop valve comprises a stop valve body, wherein an inlet is formed in the left end face of the stop valve body, an outlet is formed in the right end face of the stop valve body, a first through hole is formed in the stop valve body and located between the inlet and the outlet, a mounting hole is formed in the top of the stop valve body, a valve cover is inserted into the mounting hole, a sealing ring is fixedly sleeved on the outer side of the valve cover and located inside the mounting hole, a threaded hole is formed between the top and the bottom of the valve cover, a threaded rod is connected to the inner wall of the threaded hole in a threaded manner, a second through hole is formed between the top and the bottom of the threaded rod, a connecting rod is inserted into the second through hole, a fixing ring is fixedly sleeved on the outer wall of the connecting rod and located inside the second through hole, the connecting rod is, the sealing seat ring is fixedly inserted into the first through hole, and a hand wheel is fixedly sleeved on the outer wall of the threaded rod close to the top.

Preferably, the length of the connecting rod in the vertical direction is longer than the length of the threaded rod in the vertical direction by cm.

Preferably, the shape and the size of the outer ring of the fixing ring are matched with those of the inner walls of the through holes, and the shape and the size of the outer ring of the fixing ring are matched with those of the connecting rods.

Preferably, the shape and the size of the sealing seat ring close to the bottom are matched with those of an inner wall of the through hole, and the sealing seat ring is provided with elasticity.

Preferably, the shape of the second through hole and the shape of the connecting rod are both cylindrical, and the horizontal cross-sectional dimension of the second through hole is larger than that of the connecting rod.

Preferably, the inner ring and the outer ring of the sealing ring are respectively matched with the outer wall of the valve cover close to the top and the inner wall of the mounting hole.

The utility model provides a low temperature stop valve. The method has the following beneficial effects: when the sealing seat ring is damaged and cannot be used, the connecting rod is pulled upwards to drive the sealing seat ring to move along the through hole II, so that the sealing seat ring is taken out to be replaced, and the aim of replacing the sealing seat ring conveniently is fulfilled.

Drawings

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

FIG. 2 is a half sectional view of the present invention taken along the front-rear center line;

fig. 3 is an enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: the stop valve comprises a stop valve body 1, an inlet 2, an outlet 3, a mounting hole 4, a first through hole 5, a sealing seat ring 6, a valve cover 7, a sealing ring 8, a threaded hole 9, a threaded rod 10, a second through hole 11, a connecting rod 12, a fixed ring 13 and a hand wheel 14.

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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a low-temperature stop valve comprises a stop valve body, wherein an inlet 2 is formed in the left end face of the stop valve body 1, an outlet 3 is formed in the right end face of the stop valve body 1, a through hole I5 is formed between the inlet 2 and the outlet 3 in the stop valve body 1, a mounting hole 4 is formed in the top of the stop valve body 1, a valve cover 7 is inserted into the mounting hole 4, a sealing ring 8 is fixedly sleeved outside the valve cover 7 and inside the mounting hole 4, the inner ring and the outer ring of the sealing ring 8 are respectively matched with the outer wall, close to the top, of the valve cover 7 and the inner wall of the mounting hole 4, a threaded hole 9 is formed between the top and the bottom of the valve cover 7, a threaded rod 10 is connected to the inner wall of the threaded hole 9 in a threaded manner, a through hole II 11 is formed between the top and the bottom of the threaded, and the horizontal cross-sectional dimension of the second through hole 11 is larger than that of the connecting rod 12, the connecting rod 12 is inserted in the second through hole 11, when the sealing seat ring 6 is damaged and cannot be used, the connecting rod 12 is pulled upwards to drive the sealing seat ring 6 to move along the second through hole 11, so that the sealing seat ring 6 is taken out for replacement, and the aim of replacing the sealing seat ring conveniently is achieved, the length of the connecting rod 12 in the vertical direction is 3cm longer than that of the threaded rod 10 in the vertical direction, a fixing ring 13 is fixedly sleeved on the outer wall of the connecting rod 12 and positioned in the second through hole 11, the shape and the size of the outer ring of the fixing ring 13 are matched with those of the inner wall of the second through hole 11, the shape and the size of the outer ring of the fixing ring 13 are matched with those of the connecting rod 12, the connecting rod 12 is fixedly connected with the threaded rod 10 through the fixing ring 13, and, the sealing seat ring 6 has elasticity, and accessible through-hole two 11, the shape and the size that the sealing seat ring 6 is close to the bottom and the shape and the size phase-match of through-hole one 5 inner walls, and sealing seat ring 6 has elasticity, sealing seat ring 6 is fixed pegging graft in through-hole one 5 inside, the outer wall that threaded rod 10 is close to the top is fixed to be cup jointed has hand wheel 14, and after rotating hand wheel 14, threaded rod 10 moves up or moves down to the connecting rod 12 that drives through retainer plate 13 and threaded rod 10 fixed connection moves up or moves down, thereby drives sealing seat ring 6 and moves up or moves down, and the function of low temperature stop valve itself is realized with the cooperation of through-hole one 5 to sealing seat.

The working principle is as follows: during the use, after rotating hand wheel 14, threaded rod 10 moves up or moves down to the connecting rod 12 that drives through retainer plate 13 and threaded rod 10 fixed connection moves up or moves down, thereby it shifts up or moves down to drive seal ring 6, seal ring 6 realizes the function of low temperature stop valve itself with the cooperation of through-hole 5, when seal ring 6 appears damaging and can not use, draw connecting rod 12 top, thereby it moves along through-hole two 11 to drive seal ring 6, thereby take out seal ring 6 and change, thereby realize changing the convenient target of seal ring seat.

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.

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 low temperature stop valve, includes the stop valve body, its characterized in that: the left end face of the stop valve body (1) is provided with an inlet (2), the right end face of the stop valve body (1) is provided with an outlet (3), the stop valve body (1) is positioned between the inlet (2) and the outlet (3) and is provided with a first through hole (5), the top of the stop valve body (1) is provided with a mounting hole (4), a valve cover (7) is inserted into the mounting hole (4), a sealing ring (8) is fixedly sleeved on the outer side of the valve cover (7) and positioned inside the mounting hole (4), a threaded hole (9) is formed between the top and the bottom of the valve cover (7), the inner wall of the threaded hole (9) is in threaded connection with a threaded rod (10), a second through hole (11) is formed between the top and the bottom of the threaded rod (10), a connecting rod (12) is inserted into the through hole (11), a fixing ring (13) is fixedly sleeved on the outer wall of the connecting rod (12), connecting rod (12) pass through retainer plate (13) and threaded rod (10) fixed connection, the bottom screw fixed connection of connecting rod (12) has sealed seat circle (6), sealed seat circle (6) are fixed to be pegged graft in the inside of through-hole (5), threaded rod (10) are close to the fixed hand wheel (14) that has cup jointed of outer wall at top.

2. A cryogenic stop valve according to claim 1, wherein: the length of the connecting rod (12) in the vertical direction is 3cm longer than that of the threaded rod (10) in the vertical direction.

3. A cryogenic stop valve according to claim 1, wherein: the shape and the size of the outer ring of the fixing ring (13) are matched with those of the inner wall of the second through hole (11), and the shape and the size of the outer ring of the fixing ring (13) are matched with those of the connecting rod (12).

4. A cryogenic stop valve according to claim 1, wherein: the shape and the size of the sealing seat ring (6) close to the bottom are matched with those of the inner wall of the through hole I (5), and the sealing seat ring (6) has elasticity.

5. A cryogenic stop valve according to claim 1, wherein: the shape of the second through hole (11) and the shape of the connecting rod (12) are both cylindrical, and the horizontal section size of the second through hole (11) is larger than that of the connecting rod (12).

6. A cryogenic stop valve according to claim 1, wherein: and the inner ring and the outer ring of the sealing ring (8) are respectively matched with the outer wall of the valve cover (7) close to the top and the inner wall of the mounting hole (4).