CN215065118U - Air tightness detection device for air valve - Google Patents
Air tightness detection device for air valve Download PDFInfo
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- CN215065118U CN215065118U CN202121307856.5U CN202121307856U CN215065118U CN 215065118 U CN215065118 U CN 215065118U CN 202121307856 U CN202121307856 U CN 202121307856U CN 215065118 U CN215065118 U CN 215065118U
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Abstract
The utility model discloses an air tightness detection device for an air valve, which relates to the technical field of air valve detection, and comprises a cabinet, a cabinet door and a cabinet cavity, wherein a mechanism for clamping and fixing the sealed air valve is arranged in the cabinet cavity, and the mechanism comprises a motor, an inflation device, a vacuumizing device, a barometer, a double-head screw rod, a first air inlet hose, a second air inlet hose, a first rotating frame and a second rotating frame which are arranged in the cabinet cavity; the motor is arranged at the bottom of the cabinet, the double-head screw rod is horizontally and transversely erected at the bottom of the cavity, and one end of the double-head screw rod extends to the side of the cabinet and is connected with the motor; the double-end lead screw is sleeved with a first movable seat and a second movable seat, and the first rotating frame and the second rotating frame are respectively arranged on the side wall of the machine cavity. The detection device can be used for measuring the air tightness of air valves with different lengths and sizes, the air valves after detection are clean and attractive, cleaning and drying are not needed, the detection efficiency is high, and the detection effect is good.
Description
Technical Field
The utility model relates to an air valve detects technical field, concretely relates to air tightness detection device for air valve.
Background
The gas tightness of the gas valve has an important influence on the compressor discharge capacity, the volumetric specific energy, the interstage compression ratio and the discharge temperature. In the exhaust process of the compressor, if the air valve has poor air tightness, gas leaks out of the compressor through the air inlet valve, so that the exhaust amount is reduced, the energy consumption is increased, and the corrosion of a sealing surface of a valve plate and a valve seat is increased. In the expansion and air intake processes, if the air valve has poor air tightness, air leaks into the cylinder from the exhaust cavity through the exhaust valve, so that the exhaust volume is reduced, the energy consumption is increased, the temperature of the air in the cylinder is increased, carbon is deposited on the surface of the air valve, and the air flow area is reduced. Therefore, the air tightness detection of the air valve is the most important process for detecting whether the product is qualified. In the prior art, the sealing performance of the air valve is mostly detected by a kerosene leakage test method, kerosene is poured into an airflow channel of the lift limiter, and whether continuous leakage of the kerosene occurs or not is observed so as to judge whether the air valve is qualified in air tightness or not. The method has the following defects: 1. kerosene leakage test is adopted, and kerosene is wasted; 2. the detection accuracy is not high, whether the detection is qualified or not is judged by the experience of an operator, and misjudgment is easy to generate; 3. after detection, kerosene in the gas valve is troublesome to clean, and the attractiveness of the product is affected; 4. the operation is inconvenient, the labor intensity is high, and the detection efficiency is low.
SUMMERY OF THE UTILITY MODEL
To the problem among the prior art, the utility model provides a gas tightness detection device for pneumatic valve.
In order to achieve the purpose, the utility model discloses a following technical scheme realizes:
a gas tightness detection device for a gas valve comprises a cabinet, a cabinet door and a cabinet cavity, wherein a mechanism for clamping and fixing the sealed gas valve is arranged in the cabinet cavity, and comprises a motor, an inflation device, a vacuumizing device, a barometer, a double-head screw rod, a first gas inlet hose, a second gas inlet hose, a first rotating frame and a second rotating frame, wherein the double-head screw rod, the first gas inlet hose, the second gas inlet hose, the first rotating frame and the second rotating frame are arranged in the cabinet cavity; the motor is arranged at the bottom of the cabinet, the double-head screw rod is horizontally and transversely erected at the bottom of the cavity, two ends of the double-head screw rod are respectively and rotatably connected with the side part of the cabinet on the corresponding side, and one end of the double-head screw rod extends to the side part of the cabinet and is connected with the motor; the double-head screw comprises a light shaft section in the middle, and a left screw thread section and a right screw thread section which are respectively positioned at two sides, wherein the left screw thread section and the right screw thread section are provided with external threads which are just opposite, the left screw thread section is sleeved with a first moving seat, the right screw thread section is sleeved with a second moving seat, a screw nut a is arranged in the first moving seat, the screw nut a is in screw transmission connection with the left screw thread section, a screw nut b is arranged in the second moving seat, and the screw nut b is in screw transmission connection with the right screw thread section; the air charging device and the air pressure meter are arranged on the side part of the cabinet, the vacuumizing device is arranged at the top of the cabinet, the first rotating frame and the second rotating frame are respectively and symmetrically arranged on the side walls of two sides of the cavity and are positioned above the double-end screw rod, a through hole a is formed in the upper part of the first moving seat, a through hole b is formed in the upper part of the second moving seat, one end of the first air inlet hose is connected with the air inlet end of the air charging device, the first air inlet hose penetrates through the cabinet, a pipe body of the first air inlet hose is wound on the first winding pipe frame in a parallel winding mode, the joint of the first air inlet hose and the cabinet is sealed, and the other end of the first air inlet hose is tightly connected with one end of the through hole a; one end of the second air inlet hose penetrates through the cabinet, the outer end of the cabinet extends out of the cabinet, a pipe body of the second air inlet hose is wound on the second pipe winding frame, the joint of the second air inlet hose and the cabinet is sealed, and the other end of the second air inlet hose is tightly connected with one end of the through hole b.
Furthermore, two ends of the double-head screw are respectively connected with a bearing seat, and the bearing seats are fixedly installed on the machine cabinet.
Furthermore, the outer end of the double-head screw is connected with a first belt wheel, the power output end of the motor is connected with a second belt wheel, and a transmission belt is connected between the first belt wheel and the second belt wheel.
Further, the first rotating frame comprises a first rotating shaft and a first pipe winding frame fixedly connected with the first rotating shaft; the second rotating frame comprises a second rotating shaft and a second pipe winding frame fixedly connected with the second rotating shaft, and the first rotating shaft and the second rotating shaft are rotatably connected to the inner side wall of the cabinet through bearings arranged at the end parts of the first rotating shaft and the second rotating shaft.
Further, a first annular seal gasket is provided on the first movable seat at one end of the through hole a, and a second annular seal gasket is provided on the second movable seat at one end of the through hole b.
The utility model discloses following beneficial effect has:
the utility model discloses a gas tightness detection device can be used to measure the gas tightness of not equidimension pneumatic valve of length, utilizes the first seat of removing that sets up in the mechanism and second to remove the seat and realize the clamping and the sealing to the pneumatic valve, does not use kerosene and water during the detection, adopts the barometer to detect for the pneumatic valve after detecting is clean pleasing to the eye, need not clean stoving, and it is convenient to have the detection, and is efficient, advantages such as testing result is accurate.
Drawings
The accompanying drawings 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 and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the external structure of the detecting device of the present invention;
fig. 2 is a schematic view a of the internal structure of the detecting device of the present invention;
fig. 3 is a schematic diagram b of the internal structure of the detecting device of the present invention;
labeled as: 1. a cabinet; 101. a cabinet door; 102. a foot support; 103. a machine cavity; 2. locking; 3. a motor; 4. an inflator; 5. a vacuum pumping device; 6. a barometer; 7. a double-ended lead screw; 701. a light axis segment; 702. a left threaded section; 703. a right thread segment; 8. a first air intake hose; 9. a second air intake hose; 10. a first rotating frame; 1001. a first rotating shaft; 1002. a first bobbin holder; 11. a second rotating frame; 1101. a second rotating shaft; 1102. a second bobbin holder; 12. a first pulley; 13. a second pulley; 14. a drive belt; 15. a first movable base; 16. a second movable base; 17. a first sealing gasket; 18. a second sealing gasket; 19. and (4) an air valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, it should be noted that unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be construed broadly, as if they were fixed or removable or integrally connected, for example; the connection can be mechanical connection or circuit connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
An air tightness detecting device for an air valve is shown in fig. 1-3, and has the following structure:
including rack 1, cabinet door 101 and locate four heel brace 102 of the corner of rack 1 bottom, be equipped with the hasp 2 that is used for pinning cabinet door 101 at 1 lateral part of rack, when cabinet door 101 closed and locked, machine chamber 103 is sealed with the outside is isolated.
The cabinet 1 comprises a cabinet cavity 103 arranged at the front part, a mechanism for clamping and fixing the sealed air valve is arranged in the cabinet cavity 103, and the mechanism comprises a motor 3, an air charging device 4, a vacuumizing device 5 and a barometer 6 which are arranged at the outer side of the cabinet 1, and a double-head screw 7, a first air inlet hose 8, a second air inlet hose 9, a first rotating frame 10 and a second rotating frame 11 which are arranged in the cabinet cavity 103; wherein, motor 3 fixed mounting is in 1 bottom of rack, is located between preceding, back heel brace 102, and the horizontal frame of double-end lead screw 7 is established in quick-witted chamber 103 bottom, and double-end lead screw 7's both ends rotate with the rack 1 lateral part that corresponds the side respectively and are connected, and furtherly, equally divide respectively at double-end lead screw 7's both ends and be connected with a bearing frame, bearing frame fixed mounting is on rack 1. One end of the double-head screw 7 extends to the side of the cabinet 1, a first belt wheel 12 is connected to the end of the double-head screw, a second belt wheel 13 is connected to the power output end of the motor 3, and a transmission belt 14 is connected between the first belt wheel 12 and the second belt wheel 13.
The double-threaded lead screw 7 comprises an optical axis section 701 in the middle, a left thread section 702 and a right thread section 703 which are respectively positioned on two sides, the left thread section 702 is just opposite to the external thread arranged on the right thread section 703, a first movable seat 15 is sleeved on the left thread section 702, a second movable seat 16 is sleeved on the right thread section 703, a lead screw nut a (not shown) is arranged in the first movable seat 15, the lead screw nut a is in screw transmission connection with the left thread section 702, a lead screw nut b (not shown) is arranged in the second movable seat 16, and the lead screw nut b is in screw transmission connection with the right thread section 703.
The air charging device 4 is fixedly arranged at the side part of one side of the cabinet 1 and used for supplying air; the vacuumizing device 5 is fixedly arranged at the top of the cabinet 1 and used for pumping air in the machine cavity 103 out; the barometer 6 is arranged at a proper height on the side of the cabinet 1 and used for detecting the air pressure value in the cavity 103; the first rotating frame 10 and the second rotating frame 11 are respectively symmetrically and transversely arranged on the side walls of two sides of the machine cavity 103 and are positioned above the double-head screw 7, the first rotating frame 10 comprises a first rotating shaft 1001 and a first pipe winding frame 1002 fixedly connected with the first rotating shaft 1001, and the first air inlet hose 8 is wound on the first pipe winding frame 1002; similarly, the second rotating frame 11 includes a second rotating shaft 1101 and a second pipe winding frame 1102 fixed to the second rotating shaft 1101, the second air inlet hose 9 is wound on the second pipe winding frame 1102, and the first rotating shaft 1001 and the second rotating shaft 1101 are both rotatably connected to the inner side wall of the cabinet 1 through bearings arranged at the end portions of the first rotating shaft and the second rotating shaft 1101, so as to achieve the purpose of rotating the first rotating frame 10 and the second rotating frame 11.
A through hole a (not shown) is formed in the upper portion of the first moving seat 15, a through hole b (not shown) is formed in the upper portion of the second moving seat 16, one end of a first air inlet hose 8 is connected with the air inlet end of the air charging device 4, the first air inlet hose 8 penetrates through the cabinet 1, a pipe body of the first air inlet hose is wound on a first winding pipe frame 1002 in a parallel winding mode, the connection portion of the first air inlet hose 8 and the cabinet 1 is sealed, and the other end of the first air inlet hose 8 is tightly connected with one end of the through hole a; one end of the second air inlet hose 9 penetrates through the outer end of the cabinet 1 and extends out of the cabinet 1, a pipe body of the second air inlet hose 9 is wound on the second winding pipe frame 1102, the joint of the second air inlet hose 9 and the cabinet 1 is sealed, the other end of the second air inlet hose 9 is tightly connected with one end of the through hole b, furthermore, an annular first sealing gasket 17 is arranged on the first movable seat 15 at one end of the through hole a, an annular second sealing gasket 18 is arranged on the second movable seat 16 at one end of the through hole b, and preferably, the first sealing gasket 17 and the second sealing gasket 18 are both elastic rubber gaskets.
When the air tightness detecting device of the utility model is used, firstly, the cabinet door 101 is opened, the air valve 19 to be detected is placed between the first movable seat 15 and the second movable seat 16, namely, the air valve is placed above the middle of the optical axis, as shown in figure 2, then the motor 3 is started, the motor 3 drives the double-head lead screw 7 through the belt pulley component, the double-head lead screw 7 rotates to drive the first movable seat 15 and the second movable seat 16 to move relatively (namely, both move towards the direction of the optical axis) until the pipe orifices at two ends of the air valve 19 are respectively abutted against the first sealing gasket 17 and the second sealing gasket 18, as shown in figure 3, the air valve 19 is clamped between the first movable seat 15 and the second movable seat 16, then, the cabinet door 101 is closed, the inflating device 4 is continuously started, air enters the first air inlet hose 8, the perforation a, the air valve 19, the cabinet door b and the second air inlet hose 9 successively, until the air is discharged from the outer end of the second air inlet hose 9, during the period, the vacuumizing device 5 is started again, the interior of the machine cavity 103 is vacuumized, and then whether the parameter of the barometer 6 changes or not is observed, if so, the air valve 19 is unqualified in air tightness and has leakage; if not, no air enters the machine cavity 103, the air valve 19 does not leak, and the air tightness is qualified.
The first rotating frame 10 and the second rotating frame 11 are adjusted through manual rotation, the first air inlet hose 8 and the second air inlet hose 9 can be wound and released respectively, so that the hoses can be neatened, and the air valves 19 with different lengths and sizes can be clamped and fixed by the adaptive mechanism.
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 modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 (5)
1. A gas tightness detection device for a gas valve comprises a cabinet, a cabinet door and a cabinet cavity, wherein a mechanism for clamping and fixing the sealed gas valve is arranged in the cabinet cavity; the motor is arranged at the bottom of the cabinet, the double-head screw rod is horizontally and transversely erected at the bottom of the cavity, two ends of the double-head screw rod are respectively and rotatably connected with the side part of the cabinet on the corresponding side, and one end of the double-head screw rod extends to the side of the cabinet and is connected with the motor; the double-end lead screw comprises a light shaft section in the middle, and a left thread section and a right thread section which are respectively positioned at two sides, wherein the left thread section and the right thread section are provided with external threads which are just opposite, the left thread section is sleeved with a first moving seat, the right thread section is sleeved with a second moving seat, a lead screw nut a is arranged in the first moving seat, the lead screw nut a is in screw transmission connection with the left thread section, a lead screw nut b is arranged in the second moving seat, and the lead screw nut b is in screw transmission connection with the right thread section;
the air charging device and the barometer are arranged on the side part of the cabinet, the vacuumizing device is arranged at the top of the cabinet, the first rotating frame and the second rotating frame are respectively and symmetrically arranged on the side walls on two sides of the cavity and are positioned above the double-end screw rod, a through hole a is formed in the upper part of the first moving seat, a through hole b is formed in the upper part of the second moving seat, one end of the first air inlet hose is connected with the air inlet end of the air charging device, the first air inlet hose penetrates through the cabinet, a pipe body of the first air inlet hose is wound on the first winding pipe frame in a parallel winding mode, the joint of the first air inlet hose and the cabinet is sealed, and the other end of the first air inlet hose is tightly connected with one end of the through hole a; one end of the second air inlet hose penetrates through the outer end of the cabinet and extends out of the cabinet, a pipe body of the second air inlet hose is wound on the second winding pipe frame, the joint of the second air inlet hose and the cabinet is sealed, and the other end of the second air inlet hose is tightly connected with one end of the through hole b.
2. The airtightness detection apparatus for an air valve according to claim 1, wherein a bearing seat is connected to each of both ends of the double-headed screw, and the bearing seats are fixedly mounted on the cabinet.
3. The airtightness detection apparatus for an air valve according to claim 1, wherein a first pulley is connected to an outer end of the double-headed screw, a second pulley is connected to a power output end of the motor, and a transmission belt is connected between the first pulley and the second pulley.
4. The air tightness detecting device for the air valve according to claim 1, wherein the first rotating frame comprises a first rotating shaft and a first bobbin frame fixedly connected with the first rotating shaft; the second rotating frame comprises a second rotating shaft and a second pipe winding frame fixedly connected with the second rotating shaft, and the first rotating shaft and the second rotating shaft are rotatably connected to the inner side wall of the cabinet through bearings arranged at the end parts of the first rotating shaft and the second rotating shaft.
5. The airtightness detection apparatus for an air valve according to claim 1, wherein a first annular seal gasket is provided on the first movable seat at the end of the through hole a, and a second annular seal gasket is provided on the second movable seat at the end of the through hole b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121307856.5U CN215065118U (en) | 2021-06-11 | 2021-06-11 | Air tightness detection device for air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121307856.5U CN215065118U (en) | 2021-06-11 | 2021-06-11 | Air tightness detection device for air valve |
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| Publication Number | Publication Date |
|---|---|
| CN215065118U true CN215065118U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121307856.5U Active CN215065118U (en) | 2021-06-11 | 2021-06-11 | Air tightness detection device for air valve |
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| CN (1) | CN215065118U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115646856A (en) * | 2022-12-27 | 2023-01-31 | 博鼎精工智能科技(山东)有限公司 | Poppet valve detection device and implementation method thereof |
-
2021
- 2021-06-11 CN CN202121307856.5U patent/CN215065118U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115646856A (en) * | 2022-12-27 | 2023-01-31 | 博鼎精工智能科技(山东)有限公司 | Poppet valve detection device and implementation method thereof |
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