CN212482806U

CN212482806U - Air tightness testing device of valve

Info

Publication number: CN212482806U
Application number: CN202020976933.5U
Authority: CN
Inventors: 陈灿
Original assignee: Ningbo Tongxin Valve & Fitting Co ltd
Current assignee: Ningbo Tongxin Valve & Fitting Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-02-05
Anticipated expiration: 2030-06-01

Abstract

The utility model discloses an air tightness testing arrangement of valve, including upper plate and hypoplastron, the hypoplastron is equipped with down the test subassembly, the test subassembly that has declined, a plurality of bracing pieces, the slope test subassembly that inclines is installed to the bracing piece, push away the fender subassembly, the bracing piece is equipped with screw rod and lower screw rod, lower screw rod and hypoplastron threaded connection, it is equipped with two nuts to go up the screw rod, two nuts are located the upper and lower end of upper plate respectively, it is higher than the upper plate to go up the screw rod top, the upper plate is equipped with the test subassembly, it includes the cylinder to go up the test subassembly, go up the test head, go up the sealing washer, the test subassembly includes the test head down, the test head is equipped with the recess down, be. The utility model discloses convenient operation, test speed is swift, need not to dip in the aquatic and detects.

Description

Air tightness testing device of valve

Technical Field

The utility model belongs to the technical field of testing arrangement and specifically relates to an airtightness testing device of valve is related to.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems.

Referring to fig. 1, there are 4 passages, namely, an upper port 101, a lower port 104, a lower bevel 103, and two upper bevel 102, in order to detect whether there is a crack in the valve 100, a detection method of "water detection" is usually adopted, in which an air pipe with a sealing nut at an end is screwed into each of the 4 passages, then the valve 100 is immersed in water, high-pressure air is blown into the valve 100 from the air pipe, and whether there is an air leakage on the surface of the valve 100 is observed, so as to determine whether there is a crack. Although the detection mode of the water detection is convenient to operate, the air pipe needs to be screwed in each time and the sealing nut and the channel are kept sealed, the air pipe needs to be screwed out after the test, the efficiency is low, and the improvement is needed.

Disclosure of Invention

The utility model aims to solve the technical problem that a gas tightness testing arrangement of valve is provided, the valve can be fixed fast, then carry out the gas tightness and detect again.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an air tightness testing device of valve, includes upper plate and hypoplastron, the hypoplastron be equipped with down test subassembly, decline test subassembly, a plurality of bracing piece, the bracing piece install and incline upward test subassembly, push away the fender subassembly, the bracing piece be equipped with screw rod and lower screw rod, lower screw rod and hypoplastron threaded connection, the upper screw rod be equipped with two nuts, two nuts be located the upper and lower end of upper plate respectively, upper screw rod top be higher than the upper plate, the upper plate be equipped with test subassembly, last test subassembly include cylinder, last test head, last sealing washer, lower test subassembly include test head down, lower test head be equipped with the recess, the recess in be equipped with the thickness that lower sealing washer and groove depth are greater than the lower sealing washer.

As the utility model discloses further improve, last slope test subassembly be equipped with upper bracket, upper padding plate, go up the slope seat, go up the slope cylinder, go up the slope test piece, go up slope sealing member, two first clamp plates, the upper bracket through first bolt and first clamp plate fixed connection, just upper bracket, first clamp plate bracing piece both sides that are located respectively. The inclined cylinder can push the inclined test block to an upper inclined opening of the valve and seal the inclined test block by an inclined sealing piece; the upper base plate increases the distance of the upper inclined seat protruding towards the left side; after the first bolt is unscrewed, the upper and lower positions of the first pressing plate and the upper support can be adjusted, so that the upper inclined opening of the valve is kept to correspond to the upper inclined opening of the inclined test block.

As a further improvement, the support rod quantity be 6, wherein 2 the support rod be located the left side of hypoplastron, 4 the support rod be located the right side of hypoplastron, last slope test assembly and 2 bracing piece fixed connection at hypoplastron right side middle part.

As the utility model discloses further improve, the test subassembly that has declined be equipped with undersetting, down the sloping seat, down the sloping cylinder, the test piece that has declined, the sealing member that has declined, undersetting and hypoplastron fixed connection. The lower inclined cylinder can push the lower inclined test block to a lower inclined opening of the valve and seal the lower inclined test block by using a lower inclined sealing piece.

As the utility model discloses further improve, including the gas tightness detector, lower test head be hollow structure and be equipped with the trachea hole, the trachea hole install the trachea of being connected with the gas tightness detector, lower test head structure and last test head, incline upward test piece, the test piece that inclines down unanimously. The air tightness detector adopts a microcomputer chip, a high-precision sensor and a zero-leakage electromagnetic valve so as to ensure the accuracy of a detection result and the durability of the detector. The microcomputer automatically controls the detection process and collects data, and the latest algorithm and special software are adopted to analyze and process the data, so that the influences of temperature (including ambient temperature) and the like in the detection process are compensated to the greatest extent. The air tightness detection device overcomes external interference, realizes direct pressure difference leakage detection, has visual detection result and very high cost performance, and is ideal equipment for numerous air tightness detections. The air tightness detector is suitable for air tightness detection of valves, pipes, blowout preventers, gas production wellhead devices, manifolds, underground tools, aviation and scientific research institutions, various pressure containers in various industries and the like.

As the utility model discloses further improve, the fender subassembly that pushes away be equipped with and push away the fender fixing base, push away the fender cylinder, push away dog, two second clamp plates, the fender fixing base that pushes away pass through second bolt and second clamp plate fixed connection, and push away the bracing piece both sides that keep off fixing base, second clamp plate and be located respectively. The pushing and blocking cylinder pushes the pushing and blocking block against the left end of the valve to prevent the valve from inclining.

As a further improvement of the utility model, the distance between the top end of the upper screw rod and the upper plate is L, and the range of L is 10-100 mm. The valves with the same shape and structure are different in height, and the positions of the two nuts at the upper screw rod are adjusted, so that the valve is suitable for multiple valves.

As a further improvement, the lower end of the lower screw protrudes out of the lower end surface of the lower plate, and the lower end of the lower plate is provided with a cushion block fixedly connected with the lower screw. The cushion block is used for heightening the lower plate, so that the carrying of workers is facilitated.

The utility model has the advantages of convenient operation, rapid testing speed and no need of immersion in water for detection; the lower opening of the valve is placed in a groove of the lower testing head and sealed by a lower sealing ring, the groove can be used for positioning the lower opening of the valve, an upper cylinder pushes the upper testing head and the upper sealing ring to press the upper opening of the valve, a pushing assembly props against the left end of the valve, an upper inclined testing assembly and a lower inclined testing assembly respectively press the lower inclined opening and the two upper inclined openings, and then air tightness detection is carried out; the valves with the same shape and structure are in various types, but the heights of all the types are different, and the distance between the upper plate and the lower plate can be adjusted by adjusting the positions of the two nuts at the upper screw rod, so that the valves with different heights can be suitable for various types.

Drawings

FIG. 1 is a schematic view of a valve;

FIG. 2 is an assembly view of the present invention when the valve is placed for testing;

fig. 3 is an exploded view of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1-3: the utility model provides an air tightness testing arrangement of valve, including upper plate 2 and hypoplastron 4, hypoplastron 4 is equipped with down test component 50, lower slope test component 40, a plurality of bracing pieces 3, the last test component 30 that inclines is installed to bracing piece 3, it keeps off subassembly 10 to push away, bracing piece 3 is equipped with upper screw 3a and lower screw 3b, lower screw 3b and hypoplastron 4 threaded connection, upper screw 3a is equipped with two nuts 1, two nuts 1 are located the upper and lower ends of upper plate 2 respectively, the upper screw 3a top is higher than upper plate 2, upper plate 2 is equipped with test component 20, upper test component 20 includes cylinder 21, upper test head 22, upper seal ring 23, lower test component 50 includes lower test head 52, lower test head 52 is equipped with recess 52a, be equipped with down sealing washer 51 and the recess 52a degree of depth is greater than the thickness of lower sealing washer 51 in the recess 52 a.

The upper tilt test assembly 30 is provided with an upper support 31, an upper cushion plate 32, an upper tilt seat 35, an upper tilt cylinder 36, an upper tilt test block 37, an upper tilt seal 38, and two first press plates 33, wherein the upper support 31 is fixedly connected with the first press plates 33 through first bolts 34, and the upper support 31 and the first press plates 33 are respectively positioned at two sides of the support rod 3.

The number of the support rods 3 is 6, wherein 2 support rods 3 are positioned on the left side of the

lower plate

4, 4 support rods 3 are positioned on the right side of the lower plate 4, and the upper inclined test assembly 30 is fixedly connected with the 2 support rods 3 in the middle of the right side of the lower plate 4.

The lower inclination testing assembly 40 is provided with a lower support 45, a lower inclination seat 44, a lower inclination cylinder 43, a lower inclination testing block 42 and a lower inclination sealing member 41, wherein the lower support 45 is fixedly connected with the lower plate 4.

The test device comprises an air tightness detector, wherein the lower test head 52 is of a hollow structure and is provided with an air pipe hole 52b, an air pipe connected with the air tightness detector is installed in the air pipe hole 52b, and the structure of the lower test head 52 is consistent with that of the upper test head 22, the upper inclined test block 37 and the lower inclined test block 42.

The pushing and blocking assembly 10 is provided with a pushing and blocking fixing seat 13, a pushing and blocking cylinder 14, a pushing and blocking block 15 and two second pressing plates 12, the pushing and blocking fixing seat 13 is fixedly connected with the second pressing plates 12 through second bolts 11, and the pushing and blocking fixing seat 13 and the second pressing plates 12 are respectively located on two sides of the supporting rod 3.

The distance between the top end of the upper screw rod 3a and the upper plate 2 is L, and the range of L is 10-100 mm.

The lower end part of the lower screw rod 3b protrudes out of the lower end surface of the lower plate 4, and the lower end of the lower plate 4 is provided with a cushion block 5 fixedly connected with the lower screw rod 3 b.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an air tightness testing device of valve, includes upper plate and hypoplastron, its characterized in that the hypoplastron be equipped with down test subassembly, decline test subassembly, a plurality of bracing piece, the bracing piece install and incline the test subassembly on, push away and keep off the subassembly, the bracing piece be equipped with screw rod and lower screw rod, lower screw rod and hypoplastron threaded connection, the upper screw rod be equipped with two nuts, two nuts be located the upper and lower end of upper plate respectively, upper screw rod top be higher than the upper plate, the upper plate be equipped with test subassembly, last test subassembly include cylinder, last test head, last sealing washer, lower test subassembly include test head down, lower test head be equipped with the recess, the recess in be equipped with the thickness that lower sealing washer and the depth of groove are greater than the lower sealing washer.

2. The device for testing the air tightness of the valve according to claim 1, wherein the upper tilting test assembly is provided with an upper support, an upper base plate, an upper tilting seat, an upper tilting cylinder, an upper tilting test block, an upper tilting seal member, and two first pressing plates, wherein the upper support is fixedly connected with the first pressing plates through first bolts, and the upper support and the first pressing plates are respectively positioned on two sides of the support rod.

3. The airtightness testing apparatus for a valve according to claim 2, wherein the number of said support rods is 6, 2 of said support rods are located at the left side of the lower plate, 4 of said support rods are located at the right side of the lower plate, and said upper inclination testing member is fixedly connected to the 2 support rods at the middle of the right side of the lower plate.

4. The device for testing the air tightness of the valve according to claim 3, wherein the lower inclination testing assembly is provided with a lower support, a lower inclination seat, a lower inclination cylinder, a lower inclination testing block and a lower inclination sealing member, and the lower support is fixedly connected with the lower plate.

5. The device for testing the air tightness of the valve according to claim 4, comprising an air tightness detector, wherein the lower test head is of a hollow structure and provided with an air pipe hole, an air pipe connected with the air tightness detector is installed in the air pipe hole, and the structure of the lower test head is consistent with the upper test head, the upper inclined test block and the lower inclined test block.

6. The device for testing the air tightness of the valve according to claim 1, wherein the pushing and blocking assembly is provided with a pushing and blocking fixing seat, a pushing and blocking cylinder, a pushing and blocking block and two second pressing plates, the pushing and blocking fixing seat is fixedly connected with the second pressing plates through second bolts, and the pushing and blocking fixing seat and the second pressing plates are respectively positioned on two sides of the supporting rod.

7. The airtightness testing apparatus for the valve according to claim 1, wherein the distance between the top end of the upper screw and the upper plate is L, and L is in the range of 10-100 mm.

8. The device for testing the airtightness of the valve according to claim 1, wherein the lower end portion of the lower screw protrudes beyond the lower end surface of the lower plate, and a cushion block fixedly connected to the lower screw is provided at the lower end of the lower plate.