CN211231595U

CN211231595U - Improved stop valve

Info

Publication number: CN211231595U
Application number: CN201922319272.9U
Authority: CN
Inventors: 李铭良; 李良福
Original assignee: Quanwatts Valves Co ltd
Current assignee: Quanwa Valve Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-08-11
Anticipated expiration: 2029-12-20

Abstract

The utility model provides an improved stop valve which is not easy to be operated by mistake, can play a good safety protection to the stop valve, has good practicability and can meet the requirements of people, comprising a valve body, a water inlet and a water outlet are transversely and sequentially arranged in the valve body, a stop cavity is arranged between the water inlet and the water outlet, a valve seat part integrated with the valve body is arranged in the stop cavity, a valve cover matched with the valve body and provided with a thread groove is arranged above the stop cavity, a valve rod is arranged at the lower end inside the thread groove of the valve cover in a thread fit manner, a connecting seat is arranged at the bottom of the valve rod, a valve clack used for sealing the valve seat part is arranged at the bottom of the connecting seat, an anti-misoperation groove is arranged at the end surface of the valve rod far away from the connecting seat, a driving piece, the upper end face of the driving piece is provided with a rotating hand wheel.

Description

Improved stop valve

Technical Field

The utility model relates to the technical field of valves, concretely relates to improved generation stop valve.

Background

The stop valve, also called as a stop valve, is the most widely used one, and is popular because of the small friction force between the sealing surfaces in the opening and closing process, the durability, the small opening height, the easy manufacture, the convenient maintenance, and not only suitable for the middle and low pressure, but also suitable for the high pressure.

The stop valve is an extremely important cut-off valve, the sealing of the stop valve is realized by applying torque to a valve rod, and the valve rod applies pressure to a valve clack in the axial direction, so that a sealing surface of the valve clack is tightly attached to a sealing surface of a valve seat, and the leakage of a medium along a gap between the sealing surfaces is prevented.

The existing stop valve is easy to prevent misoperation, cannot play a good safety protection role for the stop valve, is relatively poor in practicability, and cannot meet the requirements of people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide one kind and be difficult for by prevent the maloperation, can play fine safety protection to the stop valve, the practicality is good, can satisfy the improved generation stop valve of people's demand.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an improved generation stop valve, which comprises a valve body, transversely set gradually the water inlet in the valve body, the delivery port, be provided with between water inlet and the delivery port by the chamber, be provided with the disk seat portion integrative with the valve body by the intracavity, be provided with the valve gap with valve body complex set up the thread groove above ending the chamber, the thread fit has the valve rod under the thread inslot portion of valve gap, the valve rod bottom is provided with the connecting seat, the connecting seat bottom is provided with the valve clack that is used for sealing-seat portion, the terminal surface that the connecting seat was kept away from to the valve rod is provided with prevents the maloperation groove, it is provided with the driving piece to prevent maloperation inslot activity, driving piece upper end activity sets up.

The further improvement is that: the safety assembly comprises an L-shaped twisting rod with one end fixedly arranged on the lower end surface of the driving piece and a connecting part fixedly arranged on the upper end of the inner wall of the misoperation preventing groove and provided with the other end of the L-shaped twisting rod to penetrate through.

The further improvement is that: the L-shaped twisting rod is characterized in that the end part of the other end of the L-shaped twisting rod is a fillet part which is convenient to penetrate through the connecting part.

The further improvement is that: the outer surface of the upper end of the driving part is provided with a limiting groove, and the upper end face of the valve cover is provided with a limiting plate which is matched with the limiting groove and used for preventing the driving part from being separated.

The further improvement is that: still be provided with positioner between driving piece lower extreme and the mistake operation groove of preventing, positioner including set up in driving piece lower extreme surface and be located L shape twist the location strip under the pole, set up in mistake operation groove bottom surface and be located the recess that is used for the location strip under the connecting portion.

After the technical scheme is adopted, the utility model discloses beneficial effect does: the stop valve is not easy to be operated by mistake, can play a good safety protection effect on the stop valve, has good practicability, and can meet the requirements of people.

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;

fig. 2 is a schematic structural diagram of the present invention when it is not closed.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the technical personnel in the field without creative work belong to the protection scope of the present invention. The features of the embodiments in the present application may be combined with each other without conflict.

Referring to fig. 1 to 2, the technical solution adopted by the present embodiment is:

an improved stop valve comprises a valve body 1, a water inlet and a water outlet are transversely and sequentially arranged in the valve body 1, a stop cavity is arranged between the water inlet and the water outlet, a valve seat part 2 integrated with the valve body 1 is arranged in the stop cavity, a valve cover 3 matched with the valve body 1 and provided with a thread groove is arranged above the stop cavity, the valve cover 3 is connected with the valve body 1 through a fastener, the fastener is a bolt and the like, the valve cover 3 is connected with the valve body 1 through a gasket (not shown in the figure) to improve the sealing performance, a valve rod 4 is in thread fit at the lower end in the thread groove of the valve cover 3, a connecting seat 5 is arranged at the bottom of the valve rod 4, a valve clack 6 used for sealing the valve seat part 2 is arranged at the bottom of the connecting seat 5, a sealing rubber pad (not, prevent maloperation groove 13 internalization and be provided with driving piece 7, the activity of driving piece 7 upper end sets up in the thread groove of valve gap 3 inside, and driving piece 7 lower extreme is connected through safe subassembly with preventing maloperation groove 13, and driving piece 7 up end is provided with rotation hand wheel 8. The safety assembly comprises an L-shaped screwing rod 9 with one end fixedly arranged on the lower end surface of the driving piece 7 and a connecting part 10 which is fixedly arranged on the upper end of the inner wall of the misoperation preventing groove 13 and is penetrated by the other end of the L-shaped screwing rod 9. The number of the L-shaped screwing rods 9 is less than six than two, the number of the connecting parts 10 corresponds to the number of the L-shaped screwing rods 9, so that the rotation force application is facilitated, and the driving part 7 is movably arranged in the misoperation preventing groove 13. The other end of the L-shaped screwing rod 9 is a fillet part which is convenient for penetrating the connecting part 10. So that the other end of the L-shaped screwing rod 9 can more smoothly penetrate through the connecting part 10. The surface of the upper end of the driving part 7 is provided with a limiting groove 15, and the upper end surface of the valve cover 3 is provided with a limiting plate 12 which is matched with the limiting groove 15 and used for preventing the driving part 7 from being separated. The movable drive member 7 is prevented from disengaging the shut-off valve. Still be provided with positioner between 7 lower extremes of driving piece and the mistake operation groove 13 of preventing, positioner including set up in 7 lower extreme surfaces of driving piece and be located L shape and twist the location strip 11 that moves the pole 9 under, set up in mistake operation groove 13 bottom surface and be located the recess 14 that is used for location strip 11 under connecting portion 10. The strip number of location strip 11 is one or two, plays the positioning action with the recess 14 cooperation of corresponding figure, makes things convenient for L shape to twist and moves 9 other ends through connection portion 10 of pole to make things convenient for driving piece 7 to rotate, readjust driving piece 7 positions after the stop valve has been adjusted and make location strip 11 and recess 14 not cooperate, and the personnel of unknown principle, when adjusting driving piece 7, difficult being with location strip 11 and the accurate location of recess 14.

The utility model discloses a theory of operation: hold rotation hand wheel 8 and pull up driving piece 7 and adjust, make L shape twist pole 9 other end through connection portion 10, clockwise rotation driving piece 7, valve clack 6 seals valve seat portion 2 and plays the effect of ending rivers, counter-clockwise rotation driving piece 7, valve clack 6 is kept away from valve seat portion 2 and is played the effect of letting rivers pass through, can be according to the rotation degree, adjust the rivers flow, effect through safe subassembly, make the stop valve difficult by preventing maloperation, can play fine safety protection to the stop valve, the practicality is good, when adjusting driving piece 7, can improve positioning effect fast with location strip 11 and the cooperation of recess 14, make things convenient for L shape to twist pole 9 other end through connection portion 10, thereby make things convenient for driving piece 7 rotatory. Readjust driving piece 7 position after the adjustment stop valve and make location strip 11 and recess 14 not cooperate, the personnel of unknown principle, when adjustment driving piece 7, difficult with location strip 11 and the accurate location of recess 14 to can't be accurate twist the L shape and move pole 9 other end through connection portion 10, operation driving piece 7 is rotatory.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. The utility model provides an improved generation stop valve, includes the valve body, transversely set gradually water inlet, delivery port in the valve body, be provided with between water inlet and the delivery port by the chamber, by the intracavity be provided with the integrative disk seat portion of valve body, by the chamber top be provided with valve body complex set up the valve gap of thread groove, the thread groove inside lower extreme screw-thread fit of valve gap has the valve rod, the valve rod bottom is provided with the connecting seat, the connecting seat bottom is provided with the valve clack that is used for sealing the disk seat portion, its characterized in that: the terminal surface that the connecting seat was kept away from to the valve rod is provided with prevents the maloperation groove, prevents that maloperation inslot activity is provided with the driving piece, and the activity of driving piece upper end sets up in the thread groove of valve gap inside, and the driving piece lower extreme passes through safe subassembly with preventing the maloperation groove and is connected, and the driving piece up end is provided with the rotation hand wheel.

2. An improved shut-off valve as defined in claim 1, wherein: the safety assembly comprises an L-shaped twisting rod with one end fixedly arranged on the lower end surface of the driving piece and a connecting part fixedly arranged on the upper end of the inner wall of the misoperation preventing groove and provided with the other end of the L-shaped twisting rod to penetrate through.

3. An improved shut-off valve as defined in claim 2, wherein: the L-shaped twisting rod is characterized in that the end part of the other end of the L-shaped twisting rod is a fillet part which is convenient to penetrate through the connecting part.

4. An improved shut-off valve as defined in claim 2 or 3, wherein: the outer surface of the upper end of the driving part is provided with a limiting groove, and the upper end face of the valve cover is provided with a limiting plate which is matched with the limiting groove and used for preventing the driving part from being separated.

5. An improved shut-off valve as defined in claim 4, wherein: still be provided with positioner between driving piece lower extreme and the mistake operation groove of preventing, positioner including set up in driving piece lower extreme surface and be located L shape twist the location strip under the pole, set up in mistake operation groove bottom surface and be located the recess that is used for the location strip under the connecting portion.