CN215763487U

CN215763487U - Safety valve convenient to adjust

Info

Publication number: CN215763487U
Application number: CN202122171570.5U
Authority: CN
Inventors: 陶国新
Original assignee: Jiangsu Tianda Hydraulic Machinery Manufacturing Co ltd
Current assignee: Jiangsu Tianda Hydraulic Machinery Manufacturing Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-02-08
Anticipated expiration: 2031-09-09

Abstract

The utility model relates to the technical field of safety valves, in particular to a safety valve convenient to adjust. The utility model overcomes the defects of the prior art, the pressure in the valve seat is sensed by the pressure sensor, when the pressure exceeds the allowable range, the pressure sensor controls the telescopic rod to contract by the connecting rod, the telescopic rod drives the small steel ball to be separated from the drainage pipe, so that the water body can be discharged by the drainage pipe at the two ends of the outlet flange, when the pressure returns to the normal value, the telescopic rod drives the small steel ball to return automatically, so that the pressure in the valve seat can be relieved in time when the pressure is overlarge, the phenomenon that the valve seat is broken because the valve seat cannot bear redundant pressure is prevented, the service life of the safety valve is prolonged, the phenomenon that a user is accidentally injured due to the broken valve seat is avoided, and the safety of the safety valve is further enhanced.

Description

Safety valve convenient to adjust

Technical Field

The utility model relates to a safety valve device, in particular to a safety valve convenient to adjust.

Background

The safety valve is a special valve, wherein the opening and closing part is in a normally closed state under the action of external force, and when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium is discharged to the outside of the system to prevent the pressure of the medium in the pipeline or the equipment from exceeding the specified value. The safety valve is mainly used for boiler, pressure container and pipeline, and its control pressure is not greater than specified value, so that it can play important role in protecting personal safety and equipment operation. The safety valve must be pressure tested before it can be used.

However, the existing safety valve convenient to adjust does not have a filtering function in the actual use process, when a water body flows into the valve seat from the inlet flange, impurities in the water body enter the valve seat together, the phenomenon that the impurities in the water body are adhered to the inner wall of the valve body easily occurs, the situation that the valve seat is blocked can be caused in the past in the long term, the efficiency of water discharging of the water outlet flange is reduced, the safety valve is not beneficial to actual use, the existing safety valve convenient to adjust does not have a pressure relief structure in the actual use process, when the pressure in the valve seat is too high and the pressure cannot be relieved in time, the problem that the valve seat is broken due to the fact that redundant pressure cannot be borne by the valve seat easily occurs, the service life of the safety valve is shortened, meanwhile, the phenomenon that a user is accidentally injured can be caused, the safety of the safety valve is reduced, and the safety valve is not beneficial to actual use.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a safety valve convenient to adjust, which overcomes the defects of the prior art, has simple structural design, effectively solves the problem that the existing safety valve convenient to adjust does not have a filtering function in the actual use process, when water flows into a valve seat from an inlet flange, impurities in the water enter the valve seat together, the impurities in the water are easy to stick on the inner wall of a valve body, the valve seat can be blocked in the past, the drainage efficiency of a water outlet flange is further reduced, the safety valve is not beneficial to actual use, the existing safety valve convenient to adjust does not have a pressure relief structure in the actual use process, when the pressure in the valve seat is too high and the pressure cannot be relieved in time, the problem that the valve seat is broken due to the fact that the redundant pressure cannot be borne by the valve seat, the service life of the safety valve is shortened, and the phenomenon that a user is injured by mistake can be caused at the same time, and then reduced the security of relief valve, be unfavorable for practical use.

In order to solve the technical problems, the utility model provides the following technical scheme:

a safety valve convenient to adjust comprises a valve seat, an inlet flange and an outlet flange, wherein the bottom end of the valve seat is connected with the inlet flange in a penetrating way, and the right end of the valve seat is connected with the outlet flange in a penetrating way;

the upper end of the valve seat is fixedly connected with a connecting flange, the upper end of the connecting flange is movably connected with a valve body, the upper end of the valve body is fixedly connected with an adjusting screw sleeve, the inner wall of the connecting flange is fixedly connected with female threads, the lower end of the outer wall of the valve body is fixedly connected with male threads, the upper end of the inner part of the valve body is fixedly connected with a fixed plate, the lower end of the fixed plate is movably connected with an adjusting valve rod, the surface of the adjusting valve rod is fixedly connected with a spring, the lower end of the adjusting valve rod is fixedly connected with a movable plate, the inner wall of the inlet flange is fixedly connected with a fixed groove, the inner wall of the fixed groove is movably connected with a gauze filter plate, the upper end of the gauze filter plate is movably provided with a pebble filter plate, the upper end of the inner wall of the inlet flange is fixedly connected with a rubber ring, the bottom end of the movable plate is fixedly connected with a large steel ball, and the upper end of the surface of the outlet flange is fixedly connected with a pressure sensor, the lower extreme fixedly connected with connecting rod of pressure sensor, the lower extreme fixedly connected with telescopic link of connecting rod, one side fixedly connected with small steel ball of telescopic link, surface one side through connection of outlet flange has the bleeder line.

As a preferable technical scheme of the utility model, the valve body and the adjusting screw sleeve are arranged integrally, the female thread on the inner wall of the connecting flange is matched with the male thread on the bottom of the surface of the valve body, and the diameter of the fixing plate is equal to the inner diameter of the valve body.

As a preferable technical scheme of the utility model, the adjusting valve rod at the lower end of the fixed plate is connected with the movable plate in series, the adjusting valve rod is arranged in a vertically telescopic manner, and the spring is matched with the adjusting valve rod.

As a preferred technical scheme of the utility model, the large steel ball and the moving plate are arranged integrally, the diameter of the moving plate is matched with the inner diameter of the valve seat, and the inner diameter of the rubber ring is equal to the diameter of the large steel ball.

As a preferred technical scheme of the utility model, the groove height of the fixing groove is equal to the thickness of the gauze filter plate and the pebble filter plate, the fixing groove and the valve seat are integrally arranged, and the gauze filter plate and the pebble filter plate are arranged in parallel.

As a preferred technical scheme of the utility model, the connecting rod at the lower end of the pressure sensor is connected with the telescopic rod in series, the telescopic rod is arranged in a left-right telescopic movement mode, and one side of the drainage pipe is fixedly connected with the fixing ring.

The embodiment of the utility model provides a safety valve convenient to adjust, which has the following beneficial effects: the relief valve convenient to adjust possesses filtering capability in the in-service use process, when the water flowed into the disk seat from the import flange, it is inside then together entering into the disk seat to prevent the impurity in the water, avoid taking place the impurity in the water and glue the phenomenon of gluing at the disk seat inner wall, the problem of disk seat jam has been solved, and then the efficiency of export flange drainage has been improved, be favorable to in-service use, and the relief valve convenient to adjust is equipped with pressure release structure in the in-service use process, can in time carry out the pressure release when the pressure in the disk seat is too big, prevent that the disk seat can't bear unnecessary pressure and produce the ruptured phenomenon of disk seat, the life of relief valve has been prolonged, the phenomenon of the disk seat fracture accidental injury user has been avoided, and then the security of relief valve has been strengthened, be favorable to in-service use.

1. Through setting up the import flange, the gauze filter, cobble filter and fixed slot, when the water gets into the disk seat from the import flange in, the water then loops through gauze filter and cobble filter, can hold back the impurity that carries in the water, and the recess height of fixed slot equals with gauze filter and cobble filter plate thickness, the compactness of gauze filter and cobble filter and fixed slot connection has been strengthened, it is inside then together entering into the disk seat to prevent impurity in the water, avoid taking place the impurity in the water and glue the phenomenon of gluing at the disk seat inner wall, the problem of disk seat jam has been solved, and then the efficiency of outlet flange drainage has been improved, be favorable to in-service use.

2. Through setting up pressure sensor, the connecting rod, the telescopic link, little steel ball and bleeder line, respond to the pressure in the disk seat through pressure sensor, pressure sensor then contracts through connecting rod control telescopic link when pressure surpasss the allowed band, it separates with the bleeder line to drive little steel ball through the telescopic link, make the water discharge through the bleeder line at outlet flange both ends, the telescopic link then drives little steel ball return by oneself when pressure resumes normal value, make pressure in the disk seat can in time carry out the pressure release when too big, prevent that the disk seat can't bear unnecessary pressure and produce the ruptured phenomenon of disk seat, the life of relief valve has been prolonged, the phenomenon of the disk seat accidental injury user of breaking has been avoided, and then the security of relief valve has been strengthened, be favorable to in-service use.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 is a cross-sectional view of the overall structure of the present invention;

FIG. 3 is an enlarged view of the structure of the present invention at A.

In the figure: 1. a valve seat; 2. an inlet flange; 3. a connecting flange; 4. an outlet flange; 5. a valve body; 6. adjusting the threaded sleeve; 7. female threads; 8. a sub-thread; 9. a fixing plate; 10. adjusting the valve rod; 11. a spring; 12. moving the plate; 13. fixing grooves; 14. a gauze filter plate; 15. a pebble filter plate; 16. a rubber ring; 17. large steel balls; 18. a pressure sensor; 19. a connecting rod; 20. a telescopic rod; 21. small steel balls; 22. a stationary ring; 23. a bleeder tube.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-3, a safety valve convenient for adjustment comprises a valve seat 1, an inlet flange 2 and an outlet flange 4, wherein the inlet flange 2 is connected to the bottom end of the valve seat 1 in a penetrating manner, and the outlet flange 4 is connected to the right end of the valve seat 1 in a penetrating manner;

the upper end of the valve seat 1 is fixedly connected with a connecting flange 3, the upper end of the connecting flange 3 is movably connected with a valve body 5, the upper end of the valve body 5 is fixedly connected with an adjusting screw sleeve 6, the inner wall of the connecting flange 3 is fixedly connected with a female screw 7, the lower end of the outer wall of the valve body 5 is fixedly connected with a sub screw 8, the inner upper end of the valve body 5 is fixedly connected with a fixed plate 9, the lower end of the fixed plate 9 is movably connected with an adjusting valve rod 10, the surface of the adjusting valve rod 10 is fixedly connected with a spring 11, the lower end of the adjusting valve rod 10 is fixedly connected with a movable plate 12, the inner wall of the inlet flange 2 is fixedly connected with a fixed groove 13, the inner wall of the fixed groove 13 is movably connected with a gauze filter plate 14, the upper end of the gauze filter plate 14 is movably provided with a pebble filter plate 15, the upper end of the inner wall of the inlet flange 2 is fixedly connected with a rubber ring 16, the bottom end of the movable plate 12 is fixedly connected with a large steel ball 17, and the upper end of the surface of the outlet flange 4 is fixedly connected with a pressure sensor 18, the lower end of the pressure sensor 18 is fixedly connected with a connecting rod 19, the lower end of the connecting rod 19 is fixedly connected with a telescopic rod 20, one side of the telescopic rod 20 is fixedly connected with a small steel ball 21, and one side of the surface of the outlet flange 4 is connected with a drain pipe 23 in a penetrating way.

Wherein, the valve body 5 and the adjusting screw sleeve 6 are arranged integrally, the female thread 7 on the inner wall of the connecting flange 3 is matched with the male thread 8 on the bottom of the surface of the valve body 5, and the diameter of the fixing plate 9 is equal to the inner diameter of the valve body 5;

in this embodiment, set up as an organic whole through valve body 5 and adjustment swivel nut 6, it is inseparabler to make adjustment swivel nut 6 be connected with valve body 5, make adjustment swivel nut 6 can drive valve body 5 and rotate, thereby reach the mesh of the pressure numerical value of adjusting the relief valve, and the female screw thread 7 of flange 3 inner wall agrees with each other with the sub-screw thread 8 of the surperficial bottom of valve body 5, valve body 5's stability has been strengthened, prevent to produce the condition in space between valve body 5 and the flange 3, and the diameter of fixed plate 9 equals with valve body 5's internal diameter, fixed plate 9's stability has been improved, avoid fixed plate 9 and valve body 5 not hard up phenomenon to appear, be favorable to in-service use.

The adjusting valve rod 10 at the lower end of the fixed plate 9 is connected with the moving plate 12 in series, the adjusting valve rod 10 is arranged in a vertically telescopic mode, and the spring 11 is matched with the adjusting valve rod 10;

in this embodiment, regulating valve rod 10 and movable plate 12 through fixed plate 9 lower extreme are established ties, and regulating valve rod 10 is flexible setting from top to bottom, make regulating valve rod 10 can carry out flexible regulation from top to bottom, thereby make regulating valve rod 10 can drive big steel ball 17 and rubber circle 16 and contact and separation and reunion, thereby reach the effect of drainage and damming, and spring 11 agrees with each other with regulating valve rod 10, it is inseparabler to make spring 11 be connected with regulating valve rod 10, prevent the condition that drops from appearing in spring 11 and regulating valve rod 10, be favorable to in-service use.

The large steel ball 17 and the moving plate 12 are arranged integrally, the diameter of the moving plate 12 is matched with the inner diameter of the valve seat 1, and the inner diameter of the rubber ring 16 is equal to the diameter of the large steel ball 17;

in this embodiment, the large steel ball 17 and the moving plate 12 are integrally arranged, so that the situation that the large steel ball 17 cannot contact the rubber ring 16 due to the fact that the large steel ball 17 falls off from the moving plate 12 is prevented, the stability of the large steel ball 17 is enhanced, the diameter of the moving plate 12 is matched with the inner diameter of the valve seat 1, the situation that the adjusting valve rod 10 rubs the inner wall of the valve seat 1 when the moving plate 12 is driven to move is avoided, the inner diameter of the rubber ring 16 is equal to the diameter of the large steel ball 17, the large steel ball 17 can be completely attached to the rubber ring 16, the situation that water body leaks from the surface of the large steel ball 17 is prevented, the sealing performance of the large steel ball 17 is enhanced, and the practical use is facilitated.

The groove height of the fixing groove 13 is equal to the thickness of the gauze filter plate 14 and the thickness of the pebble filter plate 15, the fixing groove 13 and the valve seat 1 are integrally arranged, and the gauze filter plate 14 and the pebble filter plate 15 are arranged in parallel;

in the embodiment, the groove height of the fixing groove 13 is equal to the thickness of the gauze filter plate 14 and the pebble filter plate 15, the tightness between the gauze filter plate 14 and the pebble filter plate 15 and the fixing groove 13 is enhanced, the gauze filter plate 14, the pebble filter plate 15 and the fixing groove 13 are prevented from falling off, the fixing groove 13 and the valve seat 1 are integrally arranged, the tightness between the fixing groove 13 and the valve seat 1 is enhanced, the problem that the fixing groove 13 and the valve seat 1 are loosened is avoided, the gauze filter plate 14 and the pebble filter plate 15 are arranged in parallel, when a water body enters the valve seat 1 from the inlet flange 2, the water body sequentially passes through the gauze filter plate 14 and the pebble filter plate 15, impurities carried in the water body can be intercepted, the phenomenon that the impurities in the water body are adhered to the inner wall of the valve seat 1 is avoided, the problem that the valve seat 1 is blocked is solved, and the drainage efficiency of the outlet flange 4 is further improved, is beneficial to practical use.

Wherein, the connecting rod 19 at the lower end of the pressure sensor 18 is connected with the telescopic rod 20 in series, the telescopic rod 20 is arranged in a left-right telescopic movement mode, and one side of the drainage pipe 23 is fixedly connected with the fixing ring 22;

in the embodiment, the connecting rod 19 at the lower end of the pressure sensor 18 is connected in series with the telescopic rod 20, and the telescopic rod 20 is arranged in a left-right telescopic movement mode, so that the pressure sensor 18 can sense the pressure in the valve seat 1, when the pressure exceeds the allowable range, the pressure sensor 18 controls the telescopic rod 20 to contract through the connecting rod 19, the telescopic rod 20 drives the small steel ball 21 to be separated from the drainage pipe 23, so that the water body can be discharged through the drainage pipes 23 at the two ends of the outlet flange 4, the pressure in the valve seat 1 can be timely relieved when the pressure is too high, the phenomenon that the valve seat 1 is broken due to the fact that the valve seat 1 cannot bear the excessive pressure is prevented, the service life of the safety valve is prolonged, a fixing ring 22 is fixedly connected to one side of the drainage pipe 23, the drainage pipe 23 is more tightly connected with the outlet flange 4, and the phenomenon that the drainage pipe 23 and the outlet flange 4 fall off due to the too high pressure when the water body is drained is prevented, is beneficial to practical use.

The working principle is as follows: firstly, a water body enters the valve seat 1 from the inlet flange 2, because the groove height of the fixed groove 13 is equal to the thickness of the gauze filter plate 14 and the pebble filter plate 15, the connection tightness between the gauze filter plate 14 and the pebble filter plate 15 and the fixed groove 13 is enhanced, the gauze filter plate 14, the pebble filter plate 15 and the fixed groove 13 are prevented from falling off, the fixed groove 13 and the valve seat 1 are integrally arranged, the connection tightness between the fixed groove 13 and the valve seat 1 is enhanced, the problem that the fixed groove 13 and the valve seat 1 are loosened is avoided, the gauze filter plate 14 and the pebble filter plate 15 are arranged in parallel, when the water body enters the valve seat 1 from the inlet flange 2, the water body sequentially passes through the gauze filter plate 14 and the pebble filter plate 15, impurities carried in the water body can be intercepted, the phenomenon that the impurities in the water body are adhered to the inner wall of the valve seat 1 is avoided, and the problem that the valve seat 1 is blocked is solved, further improving the drainage efficiency of the outlet flange 4, the large steel ball 17 and the movable plate 12 are integrally arranged, the situation that the large steel ball 17 cannot be contacted with the rubber ring 16 due to the fact that the large steel ball 17 falls off from the movable plate 12 is prevented, the stability of the large steel ball 17 is enhanced, the diameter of the movable plate 12 is matched with the inner diameter of the valve seat 1, the situation that the adjusting valve rod 10 rubs the inner wall of the valve seat 1 when the movable plate 12 is driven to move is avoided, the inner diameter of the rubber ring 16 is equal to the diameter of the large steel ball 17, the large steel ball 17 can be completely attached to the rubber ring 16, the situation that water body leaks from the surface of the large steel ball 17 is prevented, the sealing performance of the large steel ball 17 is enhanced, the connecting rod 19 at the lower end of the pressure sensor 18 is connected with the telescopic rod 20 in series, and the telescopic rod 20 is arranged in a left-right telescopic mode, so that the pressure sensor 18 can sense the pressure in the valve seat 1, pressure sensor 18 then contracts through connecting rod 19 control telescopic link 20 when pressure surpasss the allowed band, drive little steel ball 21 and bleeder line 23 through telescopic link 20 and separate, make the water discharge through the bleeder line 23 at outlet flange 4 both ends, make the pressure in the disk seat 1 can in time carry out the pressure release when too big, prevent that disk seat 1 can't bear unnecessary pressure and produce the ruptured phenomenon of disk seat 1, the life of relief valve has been prolonged, and one side fixedly connected with retainer plate 22 of bleeder line 23, it is inseparabler to make bleeder line 23 be connected with outlet flange 4, the condition that pressure too big leads to bleeder line 23 and outlet flange 4 to drop appears when preventing to carry out the bleeder to the water, be favorable to in-service use.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A safety valve convenient to adjust comprises a valve seat, an inlet flange and an outlet flange, and is characterized in that the bottom end of the valve seat is connected with the inlet flange in a through mode, and the right end of the valve seat is connected with the outlet flange in a through mode;

2. The safety valve convenient for adjustment according to claim 1, wherein the valve body is integrated with the adjusting screw sleeve, the female screw thread of the inner wall of the connecting flange is engaged with the male screw thread of the bottom of the surface of the valve body, and the diameter of the fixing plate is equal to the inner diameter of the valve body.

3. The safety valve convenient to adjust according to claim 1, wherein the adjusting valve rod at the lower end of the fixed plate is connected with the movable plate in series, the adjusting valve rod is arranged in a telescopic manner up and down, and the spring is matched with the adjusting valve rod.

4. The safety valve convenient to adjust as claimed in claim 1, wherein the large steel ball is integrally arranged with the moving plate, the diameter of the moving plate is matched with the inner diameter of the valve seat, and the inner diameter of the rubber ring is equal to the diameter of the large steel ball.

5. The safety valve convenient for adjustment according to claim 1, wherein the groove height of the fixing groove is equal to the thickness of the gauze filter plate and the pebble filter plate, the fixing groove is integrally provided with the valve seat, and the gauze filter plate and the pebble filter plate are arranged in parallel.

6. The safety valve convenient to adjust according to claim 1, wherein the connecting rod at the lower end of the pressure sensor is connected in series with a telescopic rod, the telescopic rod is arranged in a left-right telescopic movement mode, and a fixing ring is fixedly connected to one side of the drainage pipe.