CN213956685U - Valve gas tightness detection device - Google Patents
Valve gas tightness detection device Download PDFInfo
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- CN213956685U CN213956685U CN202120157132.0U CN202120157132U CN213956685U CN 213956685 U CN213956685 U CN 213956685U CN 202120157132 U CN202120157132 U CN 202120157132U CN 213956685 U CN213956685 U CN 213956685U
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- water tank
- pressing plate
- push rod
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Abstract
The utility model provides a valve air tightness detection device, which comprises a water tank, wherein the side wall of the water tank is provided with a transparent observation window, an air inlet pipe is arranged in the water tank, the outer end of the air inlet pipe is connected with an air pump, and the inner end of the air inlet pipe is provided with a valve fixing mechanism; the valve sealing mechanism comprises a push rod and a pressing plate, wherein the pressing plate is arranged at the inner end of the push rod, tightly presses a flange at the outlet end of the valve through the pressing plate, and seals the outlet of the valve through the pressing plate. In the design, the valve is fixedly and hermetically mounted through the inlet end flange, and then the outlet end flange is tightly pressed and sealed through the pressing plate, so that the sealing and fixing of the valve are realized, and the mounting speed of the valve is improved.
Description
Technical Field
The utility model belongs to valve production detection area especially relates to a valve gas tightness detection device.
Background
The valve is as the opening and closing piece commonly used when gas or liquid circulate, all need to carry out sealing performance after production and before the installation and detect, and current detection device mechanism is more single, for example use the pressure method to detect, seals valve entrance point and exit end flange respectively through tooling equipment during the detection, then carries out pressure detection, but because the model of valve is various, consequently need to correspond the frock that sets up multiple size and detect, increased the detection degree of difficulty and led to the fact manufacturing cost's increase.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a valve gas tightness detection device to realize detecting the valve gas tightness fast.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a valve gas tightness detection device, includes the water tank, the water tank lateral wall is equipped with transparent observation window, is equipped with in this water tank:
the air inlet pipe is horizontally arranged and is arranged on the left side wall of the water tank, the outer end of the air inlet pipe extends out of the water tank and then is connected with the air pump, a sealing ring is arranged between the air inlet pipe and the left side wall of the water tank, and the inner end of the air inlet pipe is provided with a valve fixing mechanism for fixing a valve and sealing the inlet of the valve;
the valve sealing mechanism comprises a push rod and a pressing plate, the push rod is horizontally arranged, the outer end of the push rod movably penetrates through the right side wall of the water tank, a sealing ring is arranged between the push rod and the right side wall of the water tank, the pressing plate is arranged at the inner end of the push rod, a flange at the outlet end of the valve is tightly pressed through the pressing plate, and the outlet of the valve is sealed through the pressing plate.
Further, valve fixed establishment includes the first screw thread portion that intake pipe inner set up, this first screw thread portion is from left to right matched with first lock nut and second lock nut in order, this first screw thread portion still movable sleeve be equipped with the mounting flange and the sealed pad of valve entrance point flange matching, mounting flange and sealed pad are located between first lock nut and the second lock nut, and this mounting flange and sealed pad sticiss fixedly through first lock nut and second lock nut, valve entrance end flange and mounting flange connect fixed back, second lock nut stretches into in the valve entrance.
Furthermore, mounting flange is equipped with multiple model size, and this multiple model size's mounting flange internal diameter corresponds with the intake pipe external diameter respectively, chooses the mounting flange suit that the model and its match to the intake pipe according to valve entrance point flange size for use.
Furthermore, the position of the right side of the inner cavity of the water tank is fixedly provided with a base, the left end of the push rod is provided with a second thread part, the base is provided with a threaded hole matched with the second thread part, the second thread part is matched with the threaded hole for installation, the left end of the second thread part is extended out of the threaded hole and then is rotatably installed on the pressing plate, the right end face of the pressing plate is perpendicularly provided with a guide post, the base is provided with a guide hole matched with the guide post, and the guide post is movably worn out of the guide hole.
Furthermore, a rubber pad for sealing the outlet end of the valve is arranged on the left end face of the pressing plate.
Compared with the prior art, a valve gas tightness detection device have following advantage:
(1) in the design, the valve is fixedly and hermetically mounted through the inlet end flange, and then the outlet end flange is tightly pressed and sealed through the pressing plate, so that the sealing and fixing of the valve are realized, and the mounting speed of the valve is improved.
(2) In this design, when detecting the valve seal box, splendid attire water in the water tank, the valve submergence is gaseous to certain pressure of input in the valve, whether qualified through the leakproofness of observing whether there is the bubble to emerge and judging the valve in the aquatic, and this detection mode is simple reliable.
(3) In this design, set up the mounting flange of multiple model size, can match the installation with the valve flange of different models and carry out the gas tightness and detect, improved the universality of this device application.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic view of a valve airtightness detection apparatus according to an embodiment of the present invention;
description of reference numerals:
1-an air pump; 2, an air inlet pipe; 21-a first threaded portion; 3-a water tank; 31-a box body; 32-box cover; 4-a valve; 5-valve fixing mechanism; 51-a first locking nut; 52-a fixed flange; 53-a gasket; 54-a second lock nut; 6-a guide post; 7-valve sealing mechanism; 71-a press plate; 72-a base; 73-push rod; 731-second threaded portion; 74-a hand wheel; 8-rubber pad.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, a valve airtightness detection apparatus includes a water tank 3, a transparent observation window is disposed on a side wall of the water tank 3, in this embodiment, the water tank 3 includes a tank body 31 with an upward opening and a tank cover 32 matched with the tank body 31, and the tank cover 32 and the tank body 31 are fixed by bolts. The bottom end of the water tank 3 is provided with a water outlet which is matched with a plug. An air inlet pipe 2 and a valve sealing mechanism 7 are arranged in the water tank 3.
2 levels of intake pipe set up, and its fixed mounting is in 3 left side walls of water tank, and 2 outer ends of this intake pipe stretch out behind 3 water tank and connect with air pump 1, and are equipped with the sealing washer between 2 left side walls of intake pipe and 3 water tank, 2 the inner of intake pipe is equipped with valve fixed establishment 5. The valve fixing mechanism 5 comprises a first thread part 21 arranged at the inner end of the outer circumferential surface of the air inlet pipe 2, the first thread part 21 is sequentially matched with a first locking nut 51 and a second locking nut 54 from left to right, the first thread part 21 is further movably sleeved with a fixing flange 52 and a sealing gasket 53, the fixing flange 52 and the sealing gasket 53 are respectively matched with flanges at the inlet end of the valve 4, the fixing flange 52 and the sealing gasket 53 are positioned between the first locking nut 51 and the second locking nut 54, and the fixing flange 52 and the sealing gasket 53 are tightly pressed and fixed through the first locking nut 51 and the second locking nut 54. After the flange at the inlet end of the valve 4 is fixedly connected with the fixing flange 52, the second locking nut 54 extends into the inlet of the valve 4.
In this embodiment, the fixing flange 52 is provided with a plurality of, and the model size of each is different with other fixing flange's model size, and the fixing flange 52 internal diameter of this multiple model size corresponds with intake pipe 2 external diameter respectively, guarantees that the fixing flange 52 of each model size can both sticis fixed through first lock nut 51 and second lock nut 54. A fixed flange 52 which is selected according to the size of the flange at the inlet end of the valve 4 and matched with the flange is sleeved on the air inlet pipe 2.
The detection principle of the implementation is that a fixing flange 52 matched with the flange type of the inlet end of the valve 4 to be detected is selected according to the flange type, a sealing gasket 53 matched with the fixing flange 52 is selected, then a second locking nut 54 is screwed down from a first threaded part 21, the fixing flange 52 and the sealing gasket 53 are respectively sleeved on the first threaded part 21, the second locking nut 54 is installed on the first threaded part 21, the second locking nut 54 is screwed in, and the flange 52 and the sealing gasket 53 are tightly pressed through the second locking nut 54 and the first locking nut 51, so that the position of the valve is fixed. Then, the flange at the inlet end of the valve 4 is bolted with the fixing flange 52, so that the valve 4 is fixed, and meanwhile, the fixing flange 52 and the flange at the inlet end of the valve are sealed by the sealing gasket 53. And the hand wheel 74 is rotated, the push rod 73 rotates and simultaneously moves linearly inwards, the pressing plate 71 is driven to move inwards until the pressing plate 71 tightly presses the flange at the outlet end of the valve 4, the outlet of the valve 4 is sealed through the pressing plate 71 and the rubber pad 8, and the fixation and sealing of the valve 4 are completed. And (3) injecting water into the water tank 3 until the valve 4 is wholly immersed in the water, starting the air pump 1, and inputting air with certain pressure into the valve 4 through the air inlet pipe. In this embodiment, in order to facilitate the understanding of the gas pressure value of input in the valve, can set up gas pressure sensor in intake pipe right-hand member position department, this gas pressure sensor is external to have a display, through the gas pressure size of gas pressure sensor input in detecting the sealing door 4, this pressure value passes through the display and shows. In the gas input process, the water level in the water tank is observed through the transparent observation window, and if bubbles emerge from the water level, the tightness of the valve body 4 cannot meet the requirement. If no air bubble emerges from the water surface, the sealing performance of the valve body 4 is good.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a valve gas tightness detection device which characterized in that: including water tank (3), water tank (3) lateral wall is equipped with transparent observation window, is equipped with in this water tank (3):
the air inlet pipe (2) is horizontally arranged and is arranged on the left side wall of the water tank (3), the outer end of the air inlet pipe (2) extends out of the water tank (3) and then is connected with the air pump (1), a sealing ring is arranged between the air inlet pipe (2) and the left side wall of the water tank (3), and a valve fixing mechanism (5) for fixing a valve (4) and sealing the inlet of the valve (4) is arranged at the inner end of the air inlet pipe (2);
the valve sealing mechanism (7) comprises a push rod (73) and a pressing plate (71), wherein the push rod (73) is horizontally arranged, the outer end of the push rod (73) movably penetrates through the right side wall of the water tank (3), a sealing ring is arranged between the push rod (73) and the right side wall of the water tank, the pressing plate (71) is installed at the inner end of the push rod (73), a flange at the outlet end of the valve (4) is tightly pressed through the pressing plate (71), and the outlet of the valve (4) is sealed through the pressing plate (71).
2. The valve airtightness detection apparatus according to claim 1, wherein: valve fixed establishment (5) are including first screw thread portion (21) that intake pipe (2) inner set up, this first screw thread portion (21) is from left to right in order to be matched with first lock nut (51) and second lock nut (54), this first screw thread portion (21) still movable sleeve is equipped with flange (52) and sealed the pad (53) that match with valve (4) import end flange, flange (52) and sealed pad (53) are located between first lock nut (51) and second lock nut (54), and this flange (52) and sealed pad (53) are sticis fixed through first lock nut (51) and second lock nut (54), valve (4) import end flange and flange (52) are connected fixedly back, second lock nut (54) stretch into in valve (4) inlet.
3. The valve airtightness detection apparatus according to claim 2, wherein: mounting flange (52) are equipped with multiple model size, and mounting flange (52) internal diameter of this multiple model size corresponds with intake pipe (2) external diameter respectively, selects for use the mounting flange (52) suit that model and its match to intake pipe (2) according to valve (4) import end flange size.
4. The valve airtightness detection apparatus according to claim 1, wherein: water tank (3) inner chamber right side position department has set firmly base (72), push rod (73) left end is equipped with second screw thread portion (731), base (72) are equipped with the screw hole that matches with this second screw thread portion (731), and second screw thread portion (731) and this screw hole match the installation, and this second screw thread portion (731) left end is stretched out the back by the screw hole and is rotated and install on clamp plate (71), clamp plate (71) right-hand member face is equipped with guide post (6) perpendicularly, and base (72) are equipped with the guiding hole that matches with guide post (6), guide post (6) are worn out by this guiding hole activity.
5. The valve airtightness detection apparatus according to claim 1 or 4, wherein: and a rubber pad (8) for sealing the outlet end of the valve (4) is arranged on the left end face of the pressing plate (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120157132.0U CN213956685U (en) | 2021-01-20 | 2021-01-20 | Valve gas tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120157132.0U CN213956685U (en) | 2021-01-20 | 2021-01-20 | Valve gas tightness detection device |
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| Publication Number | Publication Date |
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| CN213956685U true CN213956685U (en) | 2021-08-13 |
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| CN202120157132.0U Active CN213956685U (en) | 2021-01-20 | 2021-01-20 | Valve gas tightness detection device |
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| CN (1) | CN213956685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738895A (en) * | 2021-10-11 | 2021-12-03 | 东光阀门(温州)有限公司 | Five-eccentric butterfly valve and air tightness detection device thereof |
-
2021
- 2021-01-20 CN CN202120157132.0U patent/CN213956685U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738895A (en) * | 2021-10-11 | 2021-12-03 | 东光阀门(温州)有限公司 | Five-eccentric butterfly valve and air tightness detection device thereof |
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