CN220134653U - Bonnet type straight-through stop valve - Google Patents

Abstract

The utility model discloses a valve cap type straight-through stop valve, which relates to the technical field of valves and comprises a front valve body and a lifting mechanism arranged outside the front valve body, wherein the lifting mechanism comprises a lifting assembly and a working assembly, the lifting assembly comprises a reinforcing nut, a rotating handle, a valve column, a lifting body, a fixing plate and a stabilizing block, the reinforcing nut is arranged at the top end of the front valve body, the rotating handle is arranged at the bottom end of the reinforcing nut, the valve column is fixedly connected to the inner wall of the rotating handle, when the valve is in a closed state, the piston is tightly attached to a flow blocking device, liquid inside and outside the valve cannot be communicated, when the valve needs to be opened, the valve column is lifted through rotation of the rotating handle, the piston is lifted, so that the valve is opened, at the moment, the liquid inside and outside can be freely communicated, and when the valve needs to be closed, the lifting assembly of the lifting mechanism presses down the piston, so that the piston is tightly attached to the flow blocking device, and liquid inside and outside the valve is isolated again.

Description

Bonnet type straight-through stop valve

Technical Field

The utility model relates to the technical field of valves, in particular to a bonnet type straight-through stop valve.

Background

The valve cap type straight-through stop valve has the characteristics of simple structure, convenient opening and closing, good sealing performance, suitability for various fluid media and pressures, and wide application in pipeline systems of industries such as petroleum, chemical industry, electric power, metallurgy, papermaking, medicine and the like.

However, the bonnet-type cut-through valve in the prior art generally requires a long time for installation and maintenance, and is not stable enough in sealing performance, and is liable to leak, etc., and thus a bonnet-type cut-through valve is required.

Disclosure of Invention

The utility model aims to provide a bonnet type straight-through stop valve, which solves the problems that in the prior art, long-time installation and maintenance are needed, the sealing performance is not stable enough, and leakage is easy to occur.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the bonnet type straight-through stop valve comprises a front valve body and a lifting mechanism arranged outside the front valve body, wherein the lifting mechanism comprises a lifting assembly and a working assembly;

the lifting assembly comprises a reinforcing nut, a rotating handle, a valve column, a lifting body, a fixing plate and a stabilizing block, wherein the reinforcing nut is arranged at the top end of the front valve body, the rotating handle is arranged at the bottom end of the reinforcing nut, the valve column is fixedly connected to the inner wall of the rotating handle, the lifting body penetrates through the outer wall of the valve column, the fixing plate is arranged at the bottom end of the lifting body, and the stabilizing block is fixedly connected to the bottom end of the valve column;

the working assembly comprises a piston and a flow resistor, the bottom end of the stabilizing block is fixedly connected with the piston, and the inner wall of the front valve body is provided with the flow resistor.

The outer wall of preceding valve body is provided with the leak protection film, the top fixedly connected with first splint of preceding valve body, the inner wall threaded connection of first splint has the screw, the one end of screw is provided with the fixed column, the one end threaded connection of fixed column is kept away from to the screw has the nut, the outer wall of screw is provided with the second splint, the bottom fixedly connected with back valve body of second splint.

Preferably, the valve column and the lifting body form a lifting structure with the stabilizing block, and the stabilizing block forms a lifting structure with the piston through the valve column and the lifting body.

Preferably, the piston is in close contact with the surface of the flow resistor.

Preferably, the front valve body and the flow resistor are made of high-strength stainless steel.

Preferably, the first clamping plate and the second clamping plate form a fixing structure through screws and nuts, and the rear valve body and the front valve body form a fixing structure through the second clamping plate and the first clamping plate.

Preferably, the material of the leak-proof film is rubber material.

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

1. through setting up the piston, when the valve is in the closed state, the piston closely laminates with the stopper, and the inside and outside liquid of valve can't communicate, when needs opening the valve, through changeing the rotation, makes the spool go up and down, lifts up the piston, makes the valve open, and inside and outside liquid can freely communicate this moment, and when needs closing the valve, elevating system's lifting unit pushes down the piston, makes its closely laminate with the stopper, and the inside and outside liquid of valve is kept apart once more.

2. Through setting up the screw, first splint are fixed through screw and nut and second splint to the preceding valve body and the back valve body of being connected with it also can fix, then still be provided with the leak protection film between preceding valve body and the back valve body, can make things convenient for the valve body to dismantle like this, can play the effect of maintaining inside and clearance internals, the leak protection film can prevent that liquid from leaking, guarantees the fail safe nature of valve.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a bonnet-type straight-through stop valve according to the present utility model;

FIG. 2 is an exploded view of a bonnet-type cut-through valve according to the present utility model;

fig. 3 is a schematic diagram of a lifting structure of a bonnet-type through stop valve according to the present utility model;

fig. 4 is a schematic diagram of a fixed structure of a bonnet-type through stop valve according to the present utility model.

In the figure: 1. a front valve body; 2. reinforcing the nut; 3. a rotating handle; 4. a spool; 5. a lifting body; 6. a fixing plate; 7. a stabilizing block; 8. a piston; 9. a flow blocking device; 10. a leak-proof film; 11. a first clamping plate; 12. a screw; 13. fixing the column; 14. a screw cap; 15. a second clamping plate; 16. and a rear valve body.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1-4, the bonnet-type straight-through stop valve in the drawings comprises a front valve body 1 and a lifting mechanism arranged outside the front valve body 1, wherein the lifting mechanism comprises a lifting component and a working component;

the lifting assembly comprises a reinforcing nut 2, a rotating handle 3, a valve column 4, a lifting body 5, a fixing plate 6 and a stabilizing block 7, wherein the reinforcing nut 2 is arranged at the top end of the front valve body 1, the rotating handle 3 is arranged at the bottom end of the reinforcing nut 2, the valve column 4 is fixedly connected to the inner wall of the rotating handle 3, the lifting body 5 penetrates through the outer wall of the valve column 4, the fixing plate 6 is arranged at the bottom end of the lifting body 5, and the stabilizing block 7 is fixedly connected to the bottom end of the valve column 4;

the working assembly comprises a piston 8 and a flow resistor 9, the bottom end of the stabilizing block 7 is fixedly connected with the piston 8, and the inner wall of the front valve body 1 is provided with the flow resistor 9.

Wherein, as shown in fig. 3, the valve column 4 forms a lifting structure with the lifting body 5 and the stabilizing block 7 through the rotating handle 3, and the stabilizing block 7 forms a lifting structure with the piston 8 through the valve column 4 and the rotating handle 3, thereby being beneficial to increasing the stability and reliability of the valve. By means of the lifting structure, the stabilizing block 7 can be fixed on the valve more firmly, and the possibility of loosening and leakage of the valve caused by vibration and pressure change is reduced.

Wherein, as shown in fig. 3, the surface of the piston 8 and the choke 9 are closely attached, which is advantageous in preventing leakage or infiltration of fluid from between the piston 8 and the choke 9, ensuring smooth flow of fluid, and preventing unnecessary loss.

As shown in fig. 2, the front valve body 1 and the flow blocker 9 are made of high-strength stainless steel, which is favorable for prolonging the service life of the valve, and the use of the high-strength stainless steel can improve the durability and the compression resistance of the valve.

Example 2

As shown in fig. 1, 2 and 4, this embodiment further describes example 1, the outer wall of the front valve body 1 is provided with a leakage-proof film 10, the top end of the front valve body 1 is fixedly connected with a first clamping plate 11, the inner wall of the first clamping plate 11 is in threaded connection with a screw 12, one end of the screw 12 is provided with a fixing column 13, one end of the screw 12 far away from the fixing column 13 is in threaded connection with a nut 14, the outer wall of the screw 12 is provided with a second clamping plate 15, and the bottom end of the second clamping plate 15 is fixedly connected with a rear valve body 16.

As shown in fig. 4, the first clamping plate 11 and the second clamping plate 15 form a fixing structure through the screw 12 and the nut 14, the rear valve body 16 and the front valve body 1 form a fixing structure through the second clamping plate 15 and the first clamping plate 11, so that the detachable valve is favorable for detachment, and the detachable design can facilitate cleaning and maintenance of the interior of the valve.

As shown in fig. 1, the leakage-proof film 10 is made of rubber, which is beneficial to increasing the sealing performance of the valve and preventing the leakage of fluid under high pressure.

When in use, the utility model is characterized in that: firstly, when the valve is in a closed state, the piston 8 is tightly attached to the flow blocker 9, liquid inside and outside the valve cannot be communicated, when the valve needs to be opened, the rotating handle 3 rotates to enable the valve column 4 to lift, the piston 8 is lifted to enable the valve to be opened, liquid inside and outside can be freely communicated at the moment, when the valve needs to be closed, the lifting assembly of the lifting mechanism pushes down the piston 8 to be tightly attached to the flow blocker 9, and liquid inside and outside the valve is isolated again.

Finally, the first clamping plate 11 is fixed with the second clamping plate 15 through the screw 12 and the nut 14, and the front valve body 1 and the rear valve body 16 which are connected with the first clamping plate are also fixed, and then the leak-proof film 10 is further arranged between the front valve body 1 and the rear valve body 16, so that the valve body can be conveniently disassembled, the functions of maintaining the inside and cleaning the inside parts can be achieved, the leak-proof film 10 can prevent liquid leakage, and the safety and the reliability of the valve are ensured.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a straight-through stop valve of valve cap formula, includes preceding valve body (1) and sets up at the outside elevating system of preceding valve body (1), its characterized in that: the lifting mechanism comprises a lifting assembly and a working assembly;

the lifting assembly comprises a reinforcing nut (2), a rotating handle (3), a valve column (4), a lifting body (5), a fixing plate (6) and a stabilizing block (7), wherein the reinforcing nut (2) is arranged at the top end of the front valve body (1), the rotating handle (3) is arranged at the bottom end of the reinforcing nut (2), the valve column (4) is fixedly connected to the inner wall of the rotating handle (3), the lifting body (5) penetrates through the outer wall of the valve column (4), the fixing plate (6) is arranged at the bottom end of the lifting body (5), and the stabilizing block (7) is fixedly connected to the bottom end of the valve column (4);

the working assembly comprises a piston (8) and a flow resistor (9), the bottom end of the stabilizing block (7) is fixedly connected with the piston (8), and the inner wall of the front valve body (1) is provided with the flow resistor (9).

2. The bonnet form once-through shutoff valve as defined in claim 1, wherein: the outer wall of preceding valve body (1) is provided with leak protection film (10), the top fixedly connected with first splint (11) of preceding valve body (1), the inner wall threaded connection of first splint (11) has screw (12), the one end of screw (12) is provided with fixed column (13), the one end threaded connection of fixed column (13) is kept away from to screw (12) has nut (14), the outer wall of screw (12) is provided with second splint (15), the bottom fixedly connected with back valve body (16) of second splint (15).

3. The bonnet form once-through shutoff valve as defined in claim 1, wherein: the valve column (4) and the lifting body (5) and the stabilizing block (7) form a lifting structure through the rotating handle (3), and the stabilizing block (7) and the piston (8) form a lifting structure through the valve column (4) and the rotating handle (3).

4. The bonnet form once-through shutoff valve as defined in claim 1, wherein: the piston (8) is closely attached to the surface of the flow resistor (9).

5. The bonnet form once-through shutoff valve as defined in claim 1, wherein: the front valve body (1) and the flow resistor (9) are made of high-strength stainless steel materials.

6. The bonnet form pass-through shutoff valve as defined in claim 2, wherein: the first clamping plate (11) and the second clamping plate (15) form a fixed structure through the screw (12) and the nut (14), and the rear valve body (16) and the front valve body (1) form a fixed structure through the second clamping plate (15) and the first clamping plate (11).

7. The bonnet form pass-through shutoff valve as defined in claim 2, wherein: the leakproof film (10) is made of rubber.