CN218956033U

CN218956033U - Valve tightness detection device

Info

Publication number: CN218956033U
Application number: CN202223270603.2U
Authority: CN
Inventors: 刘红平
Original assignee: Shanghai Guantian Electromechanical Equipment Co ltd
Current assignee: Shanghai Guantian Electromechanical Equipment Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-05-02
Anticipated expiration: 2032-12-07

Abstract

The utility model relates to the technical field of valve detection, in particular to a valve tightness detection device. It mainly needs to consume a plurality of air pumps and pneumatic cylinder to current device sealing work, has increased the purchase cost of check out test set, and the rubber ring inflation that sets up through outer lane junction is sealed simultaneously, can't seal the valve port inner wall, and then has reduced the problem of sealed effect, proposes following technical scheme: the valve is characterized by comprising a base, wherein a supporting frame is welded on a supporting pile of the base, a sealing mechanism for positioning the valve is arranged on a top plate of the supporting frame, and the sealing mechanism comprises a first sealing glue ring and an air bag. The utility model can seal the top end and the bottom end of the valve, thereby providing convenience for subsequent seal detection work, and simultaneously limiting the position of the valve through a single upper plug, thereby reducing the purchase cost.

Description

Valve tightness detection device

Technical Field

The utility model relates to the technical field of valve detection, in particular to a valve tightness detection device.

Background

Valves are mechanical devices that control the flow, direction, pressure, temperature, etc. of a flowing fluid medium, and are essential components in a piping system. The valve can be operated manually or by a hand wheel, a handle or a pedal, and the pressure, the temperature and the flow of a fluid medium can be changed through control, so that the existing valve is usually required to be subjected to sealing test after production is finished, and the valve can be sold after reaching standards.

Therefore, chinese patent publication No. CN213397543U proposes a valve tightness detecting device, which drives two fixing blocks to move in the same direction by starting two hydraulic cylinders, so that the fixing blocks block openings at two ends of the valve, and the valve is sealed and detected by matching with an air pump and a pressure gauge, and the two first air pumps expand after inflating the rubber ring, thereby sealing the valve ports.

But this device carries out sealing work and needs to consume a plurality of air pumps and pneumatic cylinder, has increased the purchase cost of check out test set, and the rubber ring inflation that sets up through outer lane junction is sealed simultaneously, can't seal the valve port inner wall, and then has reduced sealed effect, and in view of this, we propose a valve tightness detection device.

Disclosure of Invention

The utility model aims to solve the problems in the background art and provides a valve tightness detection device.

The technical scheme of the utility model is as follows: the utility model provides a valve leakproofness detection device, includes the base, the welding has the support frame on the support stake of base, be equipped with the sealing mechanism that carries out the location to the valve on the roof of support frame, sealing mechanism includes first and the gasbag of sealing gum ring, still be equipped with on the roof of support frame and carry out the inflated mechanism to sealing gum ring first and gasbag, the constant head tank has been seted up at the top of support frame, install second and the lower end cap of sealing gum ring in the constant head tank, the bottom plate below of support frame is equipped with the detection mechanism that detects the valve leakproofness.

Preferably, the sealing mechanism further comprises an air cylinder, the output end of the air cylinder is connected with a positioning plate, an upper plug is installed at the bottom of the positioning plate, through grooves are formed in the top and the bottom of the upper plug, and a placing cavity is formed in the upper plug.

Preferably, the inflation mechanism comprises a first air pump, the output end of the first air pump is connected with a telescopic pipe, the telescopic pipe is L-shaped, and the bottom end of the telescopic pipe is positioned in a through groove at the top of the upper plug and is connected with the top interface of the electromagnetic three-way valve I.

Preferably, the air bag is arranged at the bottom of the upper plug, the connector of the air bag is positioned in the through groove at the bottom of the upper plug, the connector of the air bag is connected with the first conduit, the first conduit is positioned in the placing cavity, and two ends of the first conduit are respectively connected with the connector of the air bag and the outlet of the first electromagnetic three-way valve.

Preferably, the detection mechanism comprises a second air pump, a second electromagnetic three-way valve and a pressure gauge, wherein the output end of the second air pump is connected with the inlet end of the second electromagnetic three-way valve, and the discharge end of the bottom of the pressure gauge is connected with an air pipe.

Preferably, the bottom plate of the support frame is provided with a first air hole, the lower plug is internally provided with a second air hole, the first air hole corresponds to the second air hole in position, the bottom plate of the support frame is connected with a second guide pipe, and the pressure gauge is arranged on the second guide pipe.

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

1. according to the utility model, the valve to be detected is sleeved on the lower plug, the electromagnetic three-way valve II is started to block the inlet of the connecting pipe, the inlet end of the air pipe is further opened, after the first air pump is started to be matched with the air pipe, the air is injected into the air pipe to expand the air pipe, so that the valve sleeved on the lower plug is sealed, at the moment, the positioning plate is pushed by the starting air cylinder to descend, the upper plug is inserted into the opening at the bottom end of the valve, the electromagnetic three-way valve I is started to be opened at the connecting end of the sealing rubber ring I, so that the conduit I between the upper plug and the air bag is closed, the first air pump is started to be matched with the telescopic pipe to inject air into the sealing rubber ring I to expand the sealing rubber ring I to seal the gap between the sealing rubber ring and the outer ring, after the first air injection of the sealing rubber ring I is completed, the conduit I between the sealing rubber ring I and the air bag is opened, the air is further injected into the air pipe I, and the connecting part between the upper plug and the valve can be sealed under the action of the air bag, so that the sealing effect is improved, and the subsequent detection work is facilitated.

Drawings

FIG. 1 is a schematic diagram showing a cross-sectional front view of a valve tightness detecting device;

FIG. 2 is a schematic cross-sectional view of the upper plug of FIG. 1;

fig. 3 is a schematic structural view of the support frame in fig. 1.

Reference numerals: 1. a base; 2. a support frame; 3. a sealing mechanism; 31. a cylinder; 32. a positioning plate; 33. an upper plug; 34. a first sealant ring; 35. an air bag; 4. an inflation mechanism; 41. a first air pump; 42. a telescopic tube; 43. an electromagnetic three-way valve I; 5. a second sealant ring; 6. a lower plug; 7. a detection mechanism; 71. a second air pump; 72. an electromagnetic three-way valve II; 73. a pressure gauge; 74. and an air pipe.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Examples

As shown in fig. 1-3, the device for detecting the tightness of the valve provided by the utility model comprises a base 1 and a second sealant ring 5, wherein a support frame 2 welded on a support pile of the base 1 is formed by a top, a bottom plate and four support legs, a positioning groove formed in the bottom plate of the support frame 2 is internally provided with a lower plug 6 positioned in the middle part of the positioning groove, and meanwhile, a second air hole formed in the lower plug 6 corresponds to a first air hole formed in the bottom plate of the support frame 2 in position, and the lower plug 6 is used for carrying out preliminary position restriction on the valve placed on the bottom plate in cooperation with the positioning groove.

Further, sealing gum ring two 5 fixed mounting is in the constant head tank on the bottom plate to sealing gum ring two 5's outer lane surface is connected with the cell wall of constant head tank, and sealing gum ring two 5's inlet end is located sealing gum ring two 5's below, and the perforation has been seted up to the cell wall bottom of constant head tank, and the diameter of perforation is greater than sealing gum ring two 5 inlet end's diameter, makes things convenient for follow-up to aerifing sealing gum ring two 5 through the pipeline, makes sealing gum ring two 5 inflation seal the one end that the valve was placed in the constant head tank.

Further, be equipped with on the roof of support frame 2 and carry out sealing mechanism 3 that fixes a position the valve, sealing mechanism 3 still includes cylinder 31, locating plate 32, upper end cap 33, first 34 of sealing gum ring and gasbag 35, and cylinder 31 fixed mounting is on the roof to through-hole one and locating plate 32 top fixed connection of seting up on the roof, the drive locating plate 32 of being convenient for rises or descends. Through holes II are formed in four corners of the positioning plate 32, four supporting legs are located in the through holes II, the top end and the bottom end of the positioning plate are welded with the top plate and the bottom plate respectively, and the moving positioning plate 32 is guided through the supporting legs, so that the lifting route of the positioning plate 32 is limited, and the influence of the position deviation of the positioning plate on the subsequent detection work is avoided.

Further, the upper plug 33 and the first sealing glue ring 34 are both installed at the bottom of the positioning plate 32, the first sealing glue ring 34 is sleeved on the outer ring surface of the upper plug 33 and connected with the outer ring surface of the upper plug 33, so that the bottom end of the upper plug 33 is positioned behind the valve, and the joint is sealed through the first sealing glue ring 34. The gasbag 35 fixed mounting is in the bottom of last end cap 33, and after last end cap 33 runs through the valve of being detected, gasbag 35 then is in the valve inside, and then the gasbag 35 after the inflation can seal the valve inside, and then promotes sealed effect, is favorable to the development of the leakproofness detection work of valve.

Further, the top plate of the support frame 2 is further provided with an inflation mechanism 4 for inflating the first sealant ring 34 and the air bag 35, the inflation mechanism 4 comprises a first air pump 41, a telescopic pipe 42 and a first electromagnetic three-way valve 43, the first air pump 41 is fixedly installed on the top plate, a third through hole is formed in the top plate, a fourth through hole is formed in the positioning plate 32, one end of the telescopic pipe 42 is connected with the output end of the first air pump 41, the other end of the telescopic pipe 42 penetrates through the third through hole and the fourth through hole and is connected with the top interface of the first electromagnetic three-way valve 43, a joint of the air bag 35 is located in a through groove formed in the bottom of the upper plug 33, a first guide pipe connected at the joint is connected with one discharge end of the first electromagnetic three-way valve 43, air is conveniently output through the first air pump 41, the air bag 35 is inflated through the first guide pipe, and the inflated air bag 35 seals the inside the valve.

Further, the air inlet end of the first sealing glue ring 34 is positioned on the surface of the inner ring and positioned in a placing cavity formed in the upper plug 33, the first electromagnetic three-way valve 43 is arranged in the placing cavity, and the other exhaust end of the first electromagnetic three-way valve 43 is connected with the air inlet end of the first sealing glue ring 34, so that air is conveniently injected into the first sealing glue ring 34, and the first sealing glue ring expands to seal the surface of the outer ring of the valve to be detected. When the top end of the valve is plugged, the positioning plate 32 is pushed by the starting cylinder 31, so that the upper plug 33 penetrates through the top end of the valve, the first air pump 41 is started to be matched with the telescopic pipe 42 to inflate the first sealing ring 34 and the air bag 35, the electromagnetic three-way valve 43 controls the air flow direction exhausted by the first air pump 41, so that the sealing ring 34 or the air bag 35 can be inflated independently, the tightness is prevented from being influenced by insufficient inflation, the joint of the inner surface and the outer surface of the valve is sealed by the sealing ring 34 and the air bag 35 after inflation, the sealing effect is improved, the valve is fixed in position in the pressing process of the positioning plate 32, the valve can be fixed in position by one cylinder 31, and the purchasing cost is saved.

Further, the detection mechanism 7 for detecting the tightness of the valve is arranged below the bottom plate of the support frame 2, the detection mechanism 7 comprises a second air pump 71, an electromagnetic three-way valve 72, a pressure gauge 73 and an air pipe 74, the second air pump 71 is fixedly arranged at the top of the base 1, the output end of the second air pump 71 is connected with the inlet end of the electromagnetic three-way valve 72, the two discharge ends of the electromagnetic three-way valve 72 are respectively connected with one end of the air pipe 74 and a second guide pipe arranged at the first air hole at the bottom of the bottom plate, the pressure gauge 73 is arranged on the first guide pipe, the other end of the air pipe 74 penetrates through the through hole to be connected with the air inlet end of the sealing rubber ring two 5, the sealing rubber ring two 5 is inflated by starting the second air pump 71 to be matched with the air pipe 74, the sealing rubber ring two 5 is sealed with the lower plug 6 and the bottom plate in a matched mode, after the sealing rubber ring two 5 is inflated, the electromagnetic three-way valve two 72 is closed and the connection with the air pipe 74 is operated, the connection end between the electromagnetic three-way valve two air pump and the guide pipe is opened, the first guide pipe is further, the first guide pipe and the valve two air holes are inflated through the first guide pipe and the second guide pipe, the second air hole is connected with the second air hole, the valve 5, the sealing valve is inflated through the pressure, and the pressure state is further detected, and the tightness is detected.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims

1. Valve tightness detection device, including base (1), its characterized in that: support stake of base (1) is last to be welded with support frame (2), be equipped with sealing mechanism (3) that fix a position the valve on the roof of support frame (2), sealing mechanism (3) are including sealing gum ring one (34) and gasbag (35), still be equipped with on the roof of support frame (2) and carry out inflated inflation mechanism (4) to sealing gum ring one (34) and gasbag (35), the constant head tank has been seted up at the top of support frame (2), install sealing gum ring two (5) and lower end cap (6) in the constant head tank, the bottom plate below of support frame (2) is equipped with detection mechanism (7) that detect the valve leakproofness.

2. The valve tightness detection device according to claim 1, wherein the sealing mechanism (3) further comprises an air cylinder (31), an output end of the air cylinder (31) is connected with a positioning plate (32), an upper plug (33) is installed at the bottom of the positioning plate (32), through grooves are formed in the top and the bottom of the upper plug (33), and a placing cavity is formed in the upper plug (33).

3. The valve tightness detection device according to claim 2, wherein the inflation mechanism (4) comprises a first air pump (41), an output end of the first air pump (41) is connected with a telescopic pipe (42), the telescopic pipe (42) is in an L shape, and a bottom end of the telescopic pipe (42) is located in a penetrating groove at the top of the upper plug (33) and is connected with a top interface of the electromagnetic three-way valve I (43).

4. A valve tightness detection device according to claim 3, wherein the air bag (35) is mounted at the bottom of the upper plug (33) and the air bag (35) is mounted at the bottom of the upper plug (33), the joint of the air bag (35) is positioned in the through groove at the bottom of the upper plug (33), the joint of the air bag (35) is connected with a first conduit, the first conduit is positioned in the placing cavity, and two ends of the first conduit are respectively connected with the joint of the air bag (35) and the outlet of the first electromagnetic three-way valve (43).

5. The valve tightness detection device according to claim 1, wherein the detection mechanism (7) comprises a second air pump (71), a second electromagnetic three-way valve (72) and a pressure gauge (73), an output end of the second air pump (71) is connected with an inlet end of the second electromagnetic three-way valve (72), and a discharge end at the bottom of the pressure gauge (73) is connected with an air pipe (74).

6. The valve tightness detection device according to claim 5, wherein a first air hole is formed in a bottom plate of the support frame (2), a second air hole is formed in the lower plug (6), the first air hole corresponds to the second air hole in position, a second guide pipe is connected to the bottom of the bottom plate of the support frame (2), and the pressure gauge (73) is installed on the second guide pipe.