CN213148225U - Stable airtight testing device that leads to pressure and can detect simultaneously by multiunit sample - Google Patents

Abstract

The utility model discloses a but stable airtight testing arrangement who leads to pressure multiunit sample and detect simultaneously, including main cylinder body, gas holder, notes liquid mouth, apron and surveyed the component, the inside one end of main cylinder body is equipped with equidistant surveyed component, and is fixed with first support on the main cylinder body inner wall of surveyed component one side, is equipped with the second support by the inside main cylinder body that first support one side was kept away from to the component of being surveyed to the second support is kept away from by the main cylinder body bottom of surveying component one side and is fixed with the locating plate, the apron is installed at the top of main cylinder body, and the central point department of putting on apron top is equipped with notes liquid mouth, and the bottom of annotating the liquid mouth extends to the inside of main cylinder body to the apron top of annotating liquid mouth one side is equipped with the logical groove of gas injection, the central point department of putting that. The utility model discloses not only improved the stability when airtight testing arrangement leads to the pressure, improved the efficiency of software testing when airtight testing arrangement uses, improved airtight testing arrangement's application scope moreover.

Description

Stable airtight testing device that leads to pressure and can detect simultaneously by multiunit sample

Technical Field

The utility model relates to an airtight test technical field specifically is a but stable airtight testing arrangement who leads to pressure multiunit sample and detect simultaneously.

Background

In many industries such as automobiles, gas, household appliances, aviation, military industry and the like, the airtightness detection of sealing parts of related products is required, for some products, the gas sealing performance is a crucial performance index, and the poor airtightness can cause leakage, so that the reliability, economy and overall performance of the products are directly influenced, and the machine failure, abnormal operation, efficiency reduction and service life shortening are caused in actual use, therefore, the airtightness detection treatment needs to be carried out by means of an airtightness detection device during production and processing of the products.

The existing airtight testing devices on the market are various in types, can basically meet the use requirements of people, but still have certain defects, and have the following specific problems.

(1) The existing air tightness testing device is inconvenient for adjusting the opening and closing size of the air injection through groove, and the air injection rate of the existing air tightness testing device is difficult to adjust according to requirements, so that the stability of the existing air tightness testing device during pressure connection is influenced;

(2) the existing air tightness testing device is inconvenient for multi-station air tightness testing treatment, so that the testing efficiency is low and needs to be improved;

the existing airtight testing device is inconvenient for adjusting the distance between the first support and the second support, and is difficult to adjust correspondingly according to the specification of the tested element, so that the phenomenon that the tested element with partial length is difficult to apply occurs, and certain limitation is realized.

Disclosure of Invention

An object of the utility model is to provide a but stable airtight testing arrangement who leads to pressure multiunit sample and detect simultaneously to provide airtight testing arrangement and be not convenient for adjust the gas injection and lead to the size that opens and shuts of groove, be not convenient for the multistation carry out airtight test and handle and be not convenient for adjust the problem of interval between first support and the second support in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an airtightness testing device capable of detecting multiple groups of samples simultaneously through stable pressure comprises a main cylinder body, an air storage tank, a liquid injection port, a cover plate and a detected element, wherein the detected element is arranged at equal intervals at one end inside the main cylinder body, a first support is fixed on the inner wall of the main cylinder body on one side of the detected element, a second support is arranged inside the main cylinder body on one side of the detected element, the main cylinder body on one side, away from the first support, of the detected element, a positioning plate is fixed at the bottom of the main cylinder body on one side, away from the detected element, of the second support, the cover plate is installed at the top of the main cylinder body, the liquid injection port is arranged at the central position of the top end of the cover plate, the bottom end of the liquid injection port extends into the main cylinder body, an air injection through groove is arranged at the top end of the cover plate on one side of the liquid injection port, a, the bottom end of the bearing frame is fixedly connected with the top end of the cover plate.

Preferably, the inside of current-limiting structure is equipped with swing handle, toper current-limiting block and guide shaft in proper order, the central point department of leading to the inslot portion of gas injection is equipped with the guide shaft, and the bottom of guide shaft and the bottom swing joint that the groove was led to the gas injection to drive toper current-limiting block and rotate.

Preferably, all install toper current-limiting block on two lateral walls of guide shaft, the central point department that puts on the logical groove top of gas injection installs the swing handle, and the bottom of swing handle extends to the inside that the logical groove of gas injection was led to and is connected with the top of guide shaft to the size that opens and shuts in the logical groove of regulation gas injection.

Preferably, a circulation pipeline is installed at the center of the bottom end of the gas storage tank, and one end of the circulation pipeline, which is far away from the gas storage tank, is communicated with the top end of the gas injection through groove, so that high-pressure gas in the gas storage tank flows into the gas injection through groove through the circulation pipeline.

Preferably, one side that the logical groove bottom of gas injection was equipped with gas transmission pipeline, and gas transmission pipeline keeps away from the one end that the logical groove of gas injection extended to the inside of main cylinder body and installed the gas storage groove to the gas tight head of equidistant is installed to the bottom in gas storage groove, makes the high-pressure gas that the logical groove inside of gas injection through the gas transmission pipeline and the gas storage groove and carry to the top of being surveyed the component by gas tight head.

Preferably, annotate the liquid mouth and keep away from the apron top of gas injection logical groove one side and be equipped with the air chamber, the bottom of air chamber extends to the inside of main cylinder body to survey the processing to the blister phenomenon that produces in the test procedure.

Preferably, a spiral cylinder is arranged inside the positioning plate at the position of the second support, and two ends of the spiral cylinder extend to the outside of the positioning plate so as to arrange the one-way screw rod.

Preferably, the central point department on air chamber top installs the pressure gauge scale, and is equipped with the gas vent on the air chamber outer wall of pressure gauge scale one side, and the one end of gas vent extends to the inside of air chamber to monitor the pressure of air chamber inside and handle.

Preferably, the inside threaded connection of spiral tube has one-way lead screw, one end of one-way lead screw extend to the outside of spiral tube and with the outer wall swing joint of second support, the one end that the second support was kept away from to one-way lead screw extends to the outside of spiral tube and installs the hand wheel to the interval between first support and the second support of adjustment.

Compared with the prior art, the beneficial effects of the utility model are that: the airtight testing device capable of detecting a plurality of groups of samples simultaneously through stable pressure, not only improves the stability of the airtight testing device during pressure application and improves the testing efficiency of the airtight testing device during use, but also improves the application range of the airtight testing device;

(1) the air-tightness testing device is provided with the rotary handle, the conical flow limiting block and the guide shaft, the rotary handle is rotated to drive the guide shaft to be positioned in the air injection through groove for rotation, the guide shaft drives the conical flow limiting block to be positioned in the air injection through groove for rotation, at the moment, a gap between the outer wall of the conical flow limiting block and the inner wall of the air injection through groove can be changed, the opening and closing size of the air injection through groove is further changed, the air injection rate of the air-tightness testing device can be adjusted according to requirements, and therefore the stability of the air-tightness testing device during pressure communication is improved;

(2) the air-tight head is arranged at the bottom end of the air storage tank at equal intervals, so that the air-tight test processing can be conveniently carried out on the tested element at multiple positions, and the test efficiency of the air-tight test device in use is improved;

(3) through being provided with the hand wheel, one-way lead screw, spiral shell and locating plate, through the locating plate with the equidistant inside that sets up in the main cylinder body of spiral shell, manual rotatory hand wheel, make its inside that drives one-way lead screw and is located the spiral shell rotate, and make one-way lead screw drive the second support and carry out the translation, interval between second support and the first support then can change this moment, so that carry out corresponding regulation according to the specification of being surveyed the component, the phenomenon that is difficult to be suitable for by the survey component that reduces partial length takes place, thereby airtight testing arrangement's application scope has been improved.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

fig. 3 is an enlarged schematic structural view of the utility model at the position B in fig. 1;

FIG. 4 is a schematic view of the cross-sectional enlarged structure of the current-limiting structure of the present invention;

FIG. 5 is a schematic top view of the tested device according to the present invention;

FIG. 6 is a schematic side view of the airtight head of the present invention;

fig. 7 is a schematic view of the enlarged structure of the tapered current-limiting block according to the present invention.

In the figure: 1. a main cylinder body; 2. a first support; 3. an airtight head; 4. a gas storage tank; 5. a gas pipeline; 6. a current limiting structure; 601. turning a handle; 602. a conical flow limiting block; 603. a guide shaft; 7. a carrier; 8. a gas storage tank; 9. a flow conduit; 10. a gas injection through groove; 11. a liquid injection port; 12. a cover plate; 13. a hand wheel; 14. a second support; 15. a measured element; 16. an air chamber; 17. a pressure gauge; 18. an exhaust port; 19. a one-way screw rod; 20. a spiral cylinder; 21. and (7) positioning the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides an embodiment: an airtight testing device capable of detecting multiple groups of samples simultaneously by stable pressure passing comprises a main cylinder body 1, an air storage tank 8, a liquid injection port 11, a cover plate 12 and a tested element 15, wherein the tested element 15 is arranged at equal intervals at one end in the main cylinder body 1, a first support 2 is fixed on the inner wall of the main cylinder body 1 at one side of the tested element 15, a second support 14 is arranged in the main cylinder body 1 at one side of the tested element 15, which is far away from the first support 2, a spiral cylinder 20 is arranged in a positioning plate 21 at the position of the second support 14, and two ends of the spiral cylinder 20 extend to the outside of the positioning plate 21 so as to position a one-way screw rod 19;

a one-way screw rod 19 is connected to the inner thread of the spiral cylinder 20, one end of the one-way screw rod 19 extends to the outer part of the spiral cylinder 20 and is movably connected with the outer wall of the second support 14, and one end of the one-way screw rod 19, which is far away from the second support 14, extends to the outer part of the spiral cylinder 20 and is provided with a hand wheel 13 so as to adjust the distance between the first support 2 and the second support 14;

a positioning plate 21 is fixed at the bottom of the main cylinder body 1 on the side, away from the tested element 15, of the second support 14, a cover plate 12 is installed at the top of the main cylinder body 1, a liquid injection port 11 is formed in the center of the top end of the cover plate 12, the bottom end of the liquid injection port 11 extends into the main cylinder body 1, an air chamber 16 is formed in the top end of the cover plate 12 on the side, away from the gas injection through groove 10, of the liquid injection port 11, and the bottom end of the air chamber 16 extends into the main cylinder body 1, so that the bubble phenomenon generated in the testing process can be observed and;

a pressure gauge 17 is arranged at the center of the top end of the air chamber 16, the type of the pressure gauge 17 can be PT124G-111, an exhaust port 18 is arranged on the outer wall of the air chamber 16 at one side of the pressure gauge 17, and one end of the exhaust port 18 extends into the air chamber 16 so as to monitor the pressure in the air chamber 16;

a gas injection through groove 10 is formed in the top end of the cover plate 12 on one side of the liquid injection port 11, a gas pipeline 5 is arranged on one side of the bottom of the gas injection through groove 10, one end, far away from the gas injection through groove 10, of the gas pipeline 5 extends into the main cylinder body 1 and is provided with a gas storage groove 4, and gas sealing heads 3 at equal intervals are arranged at the bottom end of the gas storage groove 4, so that high-pressure gas in the gas injection through groove 10 is conveyed to the top of the element 15 to be measured through the gas pipeline 5, the gas storage groove 4 and the gas sealing heads 3;

the central position inside the gas injection through groove 10 is provided with a flow limiting structure 6, the inside of the flow limiting structure 6 is sequentially provided with a rotating handle 601, a conical flow limiting block 602 and a guide shaft 603, the central position inside the gas injection through groove 10 is provided with the guide shaft 603, the bottom end of the guide shaft 603 is movably connected with the bottom of the gas injection through groove 10, two outer side walls of the guide shaft 603 are both provided with the conical flow limiting block 602, the central position at the top end of the gas injection through groove 10 is provided with the rotating handle 601, and the bottom end of the rotating handle 601 extends into the gas injection through groove 10 and is connected with the top end of the guide shaft 603;

the rotating handle 601 is rotated to drive the guide shaft 603 to be positioned inside the gas injection through groove 10 for rotation, and the guide shaft 603 drives the conical flow limiting block 602 to be positioned inside the gas injection through groove 10 for rotation, at the moment, a gap between the outer wall of the conical flow limiting block 602 and the inner wall of the gas injection through groove 10 is changed, so that the opening and closing size of the gas injection through groove 10 is changed, the gas injection rate is adjusted according to requirements, and the stability of the gas tightness testing device during pressure application is improved;

a gas storage tank 8 is arranged above the gas injection through groove 10, a circulating pipeline 9 is arranged at the center of the bottom end of the gas storage tank 8, one end, far away from the gas storage tank 8, of the circulating pipeline 9 is communicated with the top end of the gas injection through groove 10, so that high-pressure gas in the gas storage tank 8 flows into the gas injection through groove 10 through the circulating pipeline 9;

and the outer wall of the air storage tank 8 is provided with a bearing frame 7, and the bottom end of the bearing frame 7 is fixedly connected with the top end of the cover plate 12.

The working principle is as follows: when the air tightness testing device is used, firstly, the spiral cylinders 20 are arranged in the main cylinder body 1 at equal intervals through the positioning plate 21, the hand wheel 13 is rotated manually to drive the one-way screw rod 19 to be positioned in the spiral cylinders 20 for rotation, and the one-way screw rod 19 drives the second support 14 to translate, at the moment, the distance between the second support 14 and the first support 2 is changed, so that corresponding adjustment is carried out according to the specification of the tested element 15, the phenomenon that the tested element 15 with partial length is difficult to apply is reduced, the application range of the air tightness testing device is improved, then the cover plate 12 is hermetically arranged at the top of the main cylinder body 1, at the moment, a water source is injected into the main cylinder body 1 through the liquid injection port 11, when the liquid level of the water source reaches the inside of the air chamber 16, the water source injection is stopped, then the air storage tank 8 is opened, and high-pressure air in the air storage tank flows into the air injection through the through groove 10, then, the first support 2 and the second support 14 are arranged in the main cylinder body 1 at equal intervals, so that the tested element 15 can be arranged in the main cylinder body 1 at multiple stations, high-pressure gas is conveyed to the inside of the gas storage tank 4 through the gas pipeline 5, the gas sealing heads 3 are arranged at the bottom end of the gas storage tank 4 at equal intervals, so that the tested element 15 can be subjected to gas sealing test treatment at multiple stations, the test efficiency of the gas sealing test device in use is improved, the guide shaft 603 is driven to rotate in the gas injection through groove 10 by rotating the rotary handle 601, the guide shaft 603 drives the conical flow limiting block 602 to rotate in the gas injection through groove 10, at the moment, the gap between the outer wall of the conical flow limiting block 602 and the inner wall of the gas injection through groove 10 can be changed, and the opening and closing size of the gas injection through groove 10 can be changed, so that the gas injection rate can be adjusted according to requirements, stability when airtight testing arrangement leads to the pressure has been improved, at last through observing whether the inside water source of air chamber 16 has the bubble to generate to judge the gas tightness of being surveyed component 15, manometer 17 can the inside atmospheric pressure value of real-time supervision air chamber 16 and show simultaneously, so that judge its airtight test effect according to atmospheric pressure, if the atmospheric pressure value is higher, can manually open gas vent 18 and release and balance processing to it, thereby accomplish airtight testing arrangement's use.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. The utility model provides a but stable ventilation pressure airtight testing arrangement that multiunit sample detected simultaneously, includes main cylinder body (1), gas holder (8), annotates liquid mouth (11), apron (12) and measured component (15), its characterized in that: the device comprises a main cylinder body (1), wherein a tested element (15) with equal intervals is arranged at one end in the main cylinder body (1), a first support (2) is fixed on the inner wall of the main cylinder body (1) at one side of the tested element (15), a second support (14) is arranged in the main cylinder body (1) at one side, far away from the first support (2), of the tested element (15), a positioning plate (21) is fixed at the bottom of the main cylinder body (1) at one side, far away from the tested element (15), of the second support (14), a cover plate (12) is installed at the top of the main cylinder body (1), a liquid injection port (11) is arranged at the central position of the top end of the cover plate (12), the bottom end of the liquid injection port (11) extends into the main cylinder body (1), a gas injection through groove (10) is arranged at the top end of the cover plate (12) at one side of the liquid injection port (11), a flow limiting structure (6) is arranged at the central position in the, and the outer wall of the air storage tank (8) is provided with a bearing frame (7), and the bottom end of the bearing frame (7) is fixedly connected with the top end of the cover plate (12).

2. The airtightness testing apparatus according to claim 1, wherein the stable pressure-applied pressure is capable of simultaneously testing a plurality of sets of samples, and wherein: the inside of current-limiting structure (6) is equipped with swing handle (601), toper current-limiting block (602) and guide shaft (603) in proper order, the inside central point department of putting of logical groove (10) of gas injection is equipped with guide shaft (603), the bottom of guide shaft (603) and the bottom swing joint that the logical groove (10) of gas injection lead.

3. The airtightness testing apparatus according to claim 2, wherein the stable pressure-applied pressure is capable of simultaneously testing a plurality of sets of samples, and wherein: all install toper current-limiting block (602) on two lateral walls of guide shaft (603), the central point department on gas injection logical groove (10) top installs swing handle (601), and the bottom of swing handle (601) extends to the inside of gas injection logical groove (10) and is connected with the top of guide shaft (603).

4. The airtightness testing apparatus according to claim 1, wherein the stable pressure-applied pressure is capable of simultaneously testing a plurality of sets of samples, and wherein: the central position department of gas holder (8) bottom installs circulation pipeline (9), and the one end that circulation pipeline (9) kept away from gas holder (8) is linked together with the top of gas injection logical groove (10).

5. The airtightness testing apparatus according to claim 1, wherein the stable pressure-applied pressure is capable of simultaneously testing a plurality of sets of samples, and wherein: one side that logical groove (10) bottom of gas injection was equipped with gas transmission pipeline (5), and gas transmission pipeline (5) keep away from the one end that logical groove (10) of gas injection extended to the inside of main cylinder body (1) and installed gas storage groove (4) to equidistant airtight head (3) are installed to the bottom in gas storage groove (4).

6. The airtightness testing apparatus according to claim 1, wherein the stable pressure-applied pressure is capable of simultaneously testing a plurality of sets of samples, and wherein: and the top end of the cover plate (12) at one side of the liquid injection port (11) far away from the gas injection through groove (10) is provided with a gas chamber (16), and the bottom end of the gas chamber (16) extends into the main cylinder body (1).

7. The airtightness testing apparatus according to claim 1, wherein the stable pressure-applied pressure is capable of simultaneously testing a plurality of sets of samples, and wherein: a spiral cylinder (20) is arranged inside the positioning plate (21) at the position of the second support (14), and two ends of the spiral cylinder (20) extend to the outside of the positioning plate (21).

8. The airtight testing device capable of detecting multiple groups of samples simultaneously by stable pressure-passing as claimed in claim 6, wherein: the central point department of putting on air chamber (16) top installs manometer (17), and is equipped with gas vent (18) on air chamber (16) outer wall of pressure gauge (17) one side, and the one end of gas vent (18) extends to the inside of air chamber (16).

9. The airtight testing device capable of detecting multiple groups of samples simultaneously by stable pressure-passing as claimed in claim 7, wherein: the inside threaded connection of a spiral tube (20) has one-way lead screw (19), one end of one-way lead screw (19) extend to the outside of a spiral tube (20) and with the outer wall swing joint of second support (14), one end that second support (14) was kept away from in one-way lead screw (19) extends to the outside of a spiral tube (20) and installs hand wheel (13).

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