CN212203188U - Corrugated pipe stop valve with corrugated pipe protection function - Google Patents

Abstract

The utility model discloses a bellows stop valve with bellows protection function, which comprises a shell, a valve handle, an upper mounting plate, a lower mounting plate and a control mechanism, wherein the valve handle is arranged above the shell, the utility model is characterized in that a fixed separation blade is firstly fixedly arranged in a cylindrical control cavity of a valve seat, a plurality of intercommunicating pores are arranged at the upper end and the lower end of the fixed separation blade in a penetrating way, so as to ensure the normal circulation of fluid in the cavity of the valve seat, a rotating separation blade is rotatably arranged below the fixed separation blade and is connected and driven by a valve rod, a plurality of intercommunicating pores are also arranged at the upper end and the lower end of the rotating separation blade in a penetrating way, the positions of two layers of intercommunicating pores are matched, so as to be completely communicated or completely separated, the communicated state is not instantaneous when the valve rod rotates, the communicated state is adjusted to be separated, the communicated gap, easily causes the problem that the internal pressure of the corrugated pipe is overlarge and is damaged.

Description

Corrugated pipe stop valve with corrugated pipe protection function

Technical Field

The utility model relates to a bellows stop valve, in particular to bellows stop valve with protection bellows function belongs to stop valve technical field.

Background

The corrugated pipe stop valve is also called a corrugated pipe sealing stop valve, a metal barrier is formed between a fluid medium and the atmosphere through automatic roll welding, the zero leakage design of the valve rod is ensured, the corrugated pipe structure is adopted in the corrugated pipe stop valve, and the lower end of a stainless steel corrugated pipe is welded on the valve rod to prevent process fluid from corroding the valve rod.

At present, because the sealing performance of the corrugated pipe is good in the actual use process of the corrugated pipe stop valve, the problem that the valve core is easily damaged due to overlarge fluid impact force of the inner cavity of the tank body when the valve rod is opened exists, and on the contrary, when the valve rod is closed, the fluid in the inner cavity of the tank body and the fluid in the inner cavity of the corrugated pipe are both blocked, so that the overlarge pressure inside the corrugated pipe is easily damaged, and the corrugated pipe stop valve with the function of protecting the corrugated pipe needs to be designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bellows stop valve with protection bellows function to what provide in solving above-mentioned background art closes in the twinkling of an eye at the valve rod, the fluid in jar internal chamber and bellows inner chamber all by the separation, makes the too big impaired problem of bellows internal pressure easily.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a bellows stop valve with protection bellows function, includes shell, valve handle, goes up installation piece, installation piece and control mechanism down, the shell top is provided with the valve handle, the fixed mounting that goes to the bottom of shell has last installation piece, the below of shell is provided with control mechanism, control mechanism top fixed mounting has down the installation piece, go up installation piece and install down through four bolt demountable installation between the piece, control mechanism is including the control tank, the equal fixed mounting in both ends has communicating pipe, two about the control tank the equal fixed mounting in one end has flange communicating pipe to keep away from mutually, fixed mounting has the disk seat in the control tank inner chamber, the inside cylindrical control chamber that forms of disk seat.

As a preferred technical scheme of the utility model, control intracavity fixed mounting has fixed separation blade, and the below of fixed separation blade is provided with the rotation separation blade, the external diameter of fixed separation blade and rotation separation blade all is unanimous with the internal diameter in control chamber.

As a preferred technical scheme of the utility model, a plurality of intercommunicating pores have all been run through to the upper and lower terminal surface of fixed separation blade and rotation separation blade and have been seted up, a plurality of intercommunicating pores specification on the fixed separation blade are unanimous and are equidistant circumference distribution about the fixed separation blade centre of a circle each other, a plurality of intercommunicating pores on the rotation separation blade are unanimous with a plurality of intercommunicating pores aperture on the fixed separation blade to be equidistant circumference distribution about the centre of a circle of rotating the separation blade each other.

As an optimal technical scheme of the utility model, shell cavity center is provided with the bearing, the valve rod is installed to the bearing internal rotation, the remaining space that the bearing and valve rod were detached to the shell cavity all fills there is the filler.

As a preferred technical scheme of the utility model, the top of valve rod and the perpendicular fixed connection in the centre of a circle position of going to the bottom of valve handle, the bottom of valve rod is rotated and is run through the installation piece and stretch into to the control intracavity with lower installation piece, the bottom of valve rod is rotated and is run through the perpendicular fixed connection in upper surface centre of a circle position of fixed separation blade and rotation separation blade.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses at first fixed mounting has a fixed separation blade in the cylindrical control intracavity of disk seat, run through in the upper and lower end of fixed separation blade and seted up a plurality of intercommunicating pores, guarantee that disk seat inner chamber fluid can normally circulate, rotate rotation separation blade of installation in the below of fixed separation blade, it is driven by the valve rod connection to rotate the separation blade, the upper and lower end of rotating the separation blade runs through equally has seted up a plurality of intercommunicating pores, two-layer intercommunication hole position looks adaptation, can communicate completely or complete separation, in the twinkling of an eye of valve rod pivoted, the state of intercommunication is adjusted to the separation state and is not instantaneous, the space of intercommunication is slowly increased or slowly reduces, abundant fluid of having solved internal chamber of jar and bellows inner chamber all is by the separation, make the too big impaired.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic view of the structure of the rotation blocking piece of the present invention.

In the figure: 1. a housing; 2. a valve handle; 3. mounting a sheet; 4. a lower mounting plate; 5. a control mechanism; 11. a bearing; 12. a filler; 13. a valve stem; 51. a control tank; 52. a communicating pipe; 53. a connecting flange; 54. a valve seat; 55. fixing a baffle plate; 56. rotating the baffle plate; 57. and a communicating hole.

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.

Please refer to fig. 1-3, the utility model relates to a bellows stop valve with protection bellows function, including shell 1, valve handle 2, go up installation piece 3, lower installation piece 4 and control mechanism 5, shell 1 top is provided with valve handle 2, the fixed mounting that goes to the bottom of shell 1 has last installation piece 3, the below of shell 1 is provided with control mechanism 5, 5 top fixed mounting of control mechanism have installation piece 4 down, go up installation piece 3 and install through four bolt demountable installation between the piece 4 down, control mechanism 5 includes control tank 51, the equal fixed mounting in both ends has communicating pipe 52 about control tank 51, two the equal fixed mounting of one end has flange 53 is kept away from mutually to communicating pipe 52, fixed mounting has disk seat 54 in the control tank 51 inner chamber, the inside cylindrical control chamber that forms of disk seat 54.

The control cavity is internally and fixedly provided with a fixed baffle 55, a rotating baffle 56 is arranged below the fixed baffle 55, the outer diameters of the fixed baffle 55 and the rotating baffle 56 are consistent with the inner diameter of the control cavity, and good sealing performance is ensured.

The upper end face and the lower end face of the fixed baffle piece 55 and the upper end face and the lower end face of the rotating baffle piece 56 are both provided with a plurality of communicating holes 57 in a penetrating mode, the communicating holes on the fixed baffle piece 55 are consistent in specification and are distributed circumferentially at equal intervals relative to the circle center of the fixed baffle piece 55, the communicating holes on the rotating baffle piece 56 are consistent in aperture and are distributed circumferentially at equal intervals relative to the circle center of the rotating baffle piece 56, and the communicating holes can be completely separated and communicated.

The bearing 11 is arranged in the center of the inner cavity of the shell 1, the valve rod 13 is rotatably mounted in the bearing 11, and the filler 12 is filled in the residual space of the inner cavity of the shell 1 except the bearing 11 and the valve rod 13 to realize secondary protection, and secondary protection is formed after the valve seat 54 is damaged.

The top end of the valve rod 13 is vertically and fixedly connected with the center position of the lower bottom of the valve handle 2, the bottom end of the valve rod 13 penetrates through the upper mounting piece 3 and the lower mounting piece 4 in a rotating mode and extends into the control cavity, the bottom end of the valve rod 13 penetrates through the fixed blocking piece 55 in a rotating mode and is vertically and fixedly connected with the center position of the upper surface of the rotating blocking piece 56 in a rotating mode, and the sealing performance of the penetrating connection position is good.

Principle of operation

The valve handle 2 is rotated, the bottom of the valve handle 2 is contacted with the top of the shell 1, the effect of limiting the valve rod 13 is achieved, namely the valve rod 13 is rotated, at the moment, the valve rod 13 rotates in the packing 12 and the bearing 11 and drives the rotating baffle 56 to rotate, the gaps between the holes and the gaps between the holes between the plurality of communication holes on the rotating baffle 56 and the plurality of communication holes 57 on the fixed baffle 55 are reduced, the reducing process is slow, and the situation that the fluid in the inner cavity of the control tank 51 is suddenly cut off to cause the reverse flow of the fluid into the corrugated pipe and further damage the corrugated pipe is caused can be avoided;

similarly, the valve handle 2 is rotated reversely, the valve rod 13 drives the rotation blocking piece 56 to rotate, the gap between the hole and the hole between the plurality of communication holes on the rotation blocking piece 56 and the plurality of communication holes 57 on the fixed blocking piece 55 is increased, the increasing process is slow, the input end communication pipe 52, namely, the fluid in the corrugated pipe, can be prevented from flowing into the valve seat 54 in an accelerating manner, and the situation that the valve seat 54 is damaged by high-pressure fluid is avoided.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 (5)

1. A corrugated pipe stop valve with a corrugated pipe protection function comprises a shell (1), a valve handle (2), an upper installation sheet (3), a lower installation sheet (4) and a control mechanism (5), and is characterized in that the valve handle (2) is arranged above the shell (1), the lower bottom of the shell (1) is fixedly provided with the upper installation sheet (3), the control mechanism (5) is arranged below the shell (1), the lower installation sheet (4) is fixedly arranged at the top of the control mechanism (5), the upper installation sheet (3) and the lower installation sheet (4) are detachably arranged through four bolts, the control mechanism (5) comprises a control tank (51), communicating pipes (52) are fixedly arranged at the left end and the right end of the control tank (51), a connecting flange (53) is fixedly arranged at one end, away from two communicating pipes (52), and a valve seat (54) is fixedly arranged in the inner cavity of the control tank (51), the valve seat (54) forms a cylindrical control chamber therein.

2. A bellows stop valve having a bellows protecting function according to claim 1, wherein: the control cavity is internally and fixedly provided with a fixed baffle (55), a rotating baffle (56) is arranged below the fixed baffle (55), and the outer diameters of the fixed baffle (55) and the rotating baffle (56) are consistent with the inner diameter of the control cavity.

3. A bellows stop valve having a bellows protecting function according to claim 2, wherein: the upper end face and the lower end face of each of the fixed blocking piece (55) and the rotating blocking piece (56) are provided with a plurality of communicating holes (57) in a penetrating mode, the communicating holes in the fixed blocking piece (55) are consistent in specification and are distributed in an equidistant circumferential mode relative to the circle center of the fixed blocking piece (55), the communicating holes in the rotating blocking piece (56) are consistent in aperture of the communicating holes in the fixed blocking piece (55), and the communicating holes in the rotating blocking piece (56) are distributed in an equidistant circumferential mode relative to the circle center of the rotating blocking piece (56).

4. A bellows stop valve having a bellows protecting function according to claim 1, wherein: the novel valve is characterized in that a bearing (11) is arranged in the center of an inner cavity of the shell (1), a valve rod (13) is rotatably mounted in the bearing (11), and the residual space of the inner cavity of the shell (1) except the bearing (11) and the valve rod (13) is filled with a filler (12).

5. A bellows stop valve with bellows protecting function according to claim 4, characterized in that: the top of valve rod (13) and the perpendicular fixed connection in lower bottom centre of a circle position of valve handle (2), the bottom of valve rod (13) is rotated and is run through installation piece (3) and installation piece (4) stretch into to the control intracavity down, the bottom of valve rod (13) is rotated and is run through fixed separation blade (55) and the perpendicular fixed connection in upper surface centre of a circle position of rotating separation blade (56).

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