CN117589378A - Tightness detection device for vacuum environment - Google Patents

Abstract

The invention is applicable to the technical field of seal detection, and provides a tightness detection device for a vacuum environment, which comprises an external component, a separation component and a detection component; the external component comprises a supporting frame, a supporting plate, an isolation cover, a vacuum pump and a gas supply tank; the separation assembly comprises a separation plate, a micro motor, a driving bevel gear, a driven bevel gear, a first rotating rod, a leaf and a second rotating rod, and lifting pieces arranged on the side wall of the circumferential direction of the separation plate; the detection assembly comprises a first detection spring piece, a second detection spring piece and a third detection spring piece, and a detection probe; through separating subassembly and detection component mutually supporting, can be according to the high adjustment detection probe's of the product that awaits measuring height for detection probe only need detect the vacuum region that awaits measuring the product place can, can carry out the coverage on a large scale according to the appearance of the product that awaits measuring, make detection probe can be timely detect the gas of point of release, thereby improved detection efficiency.

Description

Tightness detection device for vacuum environment

Technical Field

The invention relates to the technical field of seal detection, in particular to a vacuum environment tightness detection device.

Background

The tightness detection is generally to detect air leakage of a product to be detected, so as to determine whether the product to be detected leaks air, and the detection method can be basically divided into two methods of pressurizing helium inside and evacuating the inside of the device and externally applying helium.

In the prior art, most of the used instruments in detection are tightness testers, and the operation steps are as follows: the detection probe of the sealing tester is communicated with the sealing cover, and the tester is started to detect the environment in the sealing cover, however, the detection probe can only detect in a fixed place and cannot realize all-round detection at the same time, so that the detection efficiency is reduced; if the space in the sealed cowling is great, and when the position distance of the leak point of the product that awaits measuring and test probe is farther, the gas that fills needs longer just can creep around the test probe, and test probe just can detect to lead to test probe unable real-time to detect gas, and then reduced detection efficiency, therefore, the leakproofness detection device of a vacuum environment is proposed at present in order to improve current existence problem.

Disclosure of Invention

Aiming at the defects existing in the prior art, the invention aims to provide a tightness detection device for a vacuum environment.

In order to achieve the above purpose, the present invention provides the following technical solutions: a tightness detection device of a vacuum environment comprises an external component, a separation component and a detection component; the external assembly comprises a support frame, a support plate arranged at the top of the support frame, an isolation cover arranged at one side of the support plate far away from the support frame, a vacuum pump arranged at one side of the isolation cover, and a gas supply tank arranged below the support frame; the separation assembly is arranged in the isolation cover and comprises a separation plate, a micro motor arranged on one side of the separation plate, a drive bevel gear arranged at the output end of the micro motor, a driven bevel gear uniformly arranged on one side of the drive bevel gear close to the micro motor in the circumferential direction, a first rotating rod arranged on one end of the driven bevel gear far away from the drive bevel gear, a leaf arranged on one end of the first rotating rod far away from the driven bevel gear, a second rotating rod arranged on one end of the leaf far away from the first rotating rod, and a lifting piece arranged on the side wall of the separation plate in the circumferential direction; the detection assembly is uniformly arranged on one side, far away from the micro motor, of the separation plate in the circumferential direction, and comprises a first detection spring piece, a second detection spring piece arranged on one end of the first detection spring piece, a third detection spring piece arranged on one end, far away from the first detection spring piece, of the second detection spring piece, and a detection probe uniformly arranged on the same side of the first detection spring piece, the second detection spring piece and the third detection spring piece.

The invention is further provided with: the one end opening of isolated cover, the other end is sealed, be provided with the annular plate on the outer wall of isolated cover, the annular plate can flush the setting with the open end of isolated cover, the backup pad has seted up the cooperation groove on keeping away from the lateral wall of support frame, the annular plate can be cooperateed and pegged graft in the cooperation inslot.

The invention is further provided with: the air supply tank is characterized in that a product is further arranged in the matching groove, an input hole is formed in the bottom of the matching groove, the input hole can penetrate through the side wall of the supporting plate, a sealing ring is arranged in the input hole, an air supply hose is arranged in the sealing ring, one end of the air supply hose can be connected to the input end of the product, and the other end of the air supply hose can be connected to the output end of the air supply tank; the side wall of the closed end of the isolation cover is provided with an output pipe, one end of the output pipe can be communicated with the isolation cover, the other end of the output pipe is provided with a vacuum hose, and one end of the vacuum hose, which is far away from the output pipe, can be connected to the input end of the vacuum pump.

The invention is further provided with: the division board is cyclic annular, the intra-annular middle part of division board is provided with the partition post, evenly be provided with the extension strip on the outer wall of partition post, the extension strip can flush the setting with the one end of partition post, the one end of keeping away from the partition post of extension strip can connect in the intra-annular inner wall of division board.

The invention is further provided with: the utility model discloses a motor, including extension strip, drive bevel gear, micro motor, drive bevel gear, separating post, rotation groove has been seted up to the one end that keeps away from the extension strip, drive bevel gear is located the rotation inslot, be provided with the axis of rotation in the centre bore of drive bevel gear, the one end of axis of rotation can connect in micro motor's output, the other end can rotate and connect in the bottom of rotation groove, drive bevel gear can the meshing transmission in driven bevel gear.

The invention is further provided with: the outer wall of the partition column is uniformly provided with rotating holes, the rotating holes can penetrate through the side wall of the partition column and are communicated with the rotating grooves, and one end of the first rotating rod, which is far away from the leaf, can be connected with one end of the driven bevel gear, which is far away from the driving bevel gear, through the rotating holes; the blades are fan-shaped, the blades can be uniformly distributed in the inner ring of the partition plate in the circumferential direction, the blades can be tightly attached to each other, and one end, away from the blades, of the second rotating rod can be rotationally connected to the inner wall of the inner ring of the partition plate.

By adopting the technical scheme, the blades are gradually and tightly attached in the overturning process, so that the blades seal the middle part of the ring of the partition plate, and the partition plate partitions the space in the isolation cover, on one hand, the space of a vacuum area in the isolation cover is reduced, and the detection probe only needs to detect the vacuum area where a product to be detected is located; in another aspect, the segmented vacuum areas are detected so that the detection probes can be oriented.

The invention is further provided with: the lifting piece comprises a lifting motor, a screw rod arranged at the output end of the lifting motor and a moving block sleeved on the screw rod; the lifting motor is positioned at one side of the supporting plate, which is close to the supporting frame, a hanging plate is arranged in the middle of the side wall of the supporting plate, which is close to the supporting frame, and the side wall of the hanging plate can be connected to the bottom of the lifting motor; the inner wall of the isolation cover is provided with a moving groove which can extend along the height direction of the isolation cover, the lead screw is distributed in the moving groove, one end of the lead screw can be rotatably connected with the top of the inner wall of the separation cover, the other end can run through the lateral wall of backup pad and connect in elevator motor's output, the department of running through of lead screw and backup pad is provided with the sealing washer, the movable block can cooperate slide in the removal inslot, the lateral wall of movable block can connect in the ring outer wall of division board.

The invention is further provided with: the inner wall of the isolation cover is also provided with three sliding grooves, one sliding groove is arranged opposite to the moving groove, the other two sliding grooves are arranged opposite to each other and are vertically distributed with the moving groove, the sliding grooves can extend and distribute along the height direction of the isolation cover, sliding blocks are arranged in the sliding grooves, and the side walls of the sliding blocks, which are far away from the sliding grooves, can be connected to the annular outer wall of the separation plate.

Through adopting above-mentioned technical scheme, through the design of lifting piece for the partition board is close the top of the product that awaits measuring, and the partition board cuts apart the vacuum region that awaits measuring the product place and other vacuum regions on the one hand, makes the vacuum region that needs to detect diminish, and the detection probe only needs to detect the vacuum region that awaits measuring the product place can.

The invention is further provided with: the first detection spring piece is arc-shaped, one side of the first detection spring piece can be connected to the side wall of the separation plate far away from the miniature motor, a first overturning hole is formed in the other end of the first detection spring piece, a first overturning rod is arranged in the first overturning hole, a first torsion spring is sleeved on the first overturning rod, two ends of the first torsion spring can be connected to the inner wall of the first overturning hole, and one end of the first overturning rod can be rotatably connected to one side of the second detection spring piece; the second overturning hole is formed in one end, far away from the first overturning rod, of the second detection elastic sheet, the second overturning rod is arranged in the second overturning hole, a second torsion spring is sleeved on the second overturning rod, two ends of the second torsion spring can be connected to the inner wall of the second overturning hole, and one end of the second overturning rod can be rotationally connected to one side of the third detection elastic sheet.

The invention is further provided with: the detection device comprises a first detection elastic piece, a second detection elastic piece and a third detection elastic piece, wherein detection grooves are formed in the side walls of the same sides of the first detection elastic piece, the second detection elastic piece and the third detection elastic piece, the detection grooves are uniformly distributed along the length directions of the first detection elastic piece, the second detection elastic piece and the third detection elastic piece, a detection probe is located in the detection grooves, and anti-collision blocks are arranged on the protruding side walls between the detection grooves.

Through adopting above-mentioned technical scheme, through the mutual cooperation of first detection shell fragment, second detection shell fragment and third detection shell fragment, the elasticity characteristics that the reuse shell fragment itself had can make first detection shell fragment, second detection shell fragment and third detection shell fragment utilize elasticity to carry out closely laminating with the surface of the product that awaits measuring to make the surface close contact of detection probe and the product that awaits measuring, make detection probe can be timely detect the gas of leaking the gas point.

In summary, the present application includes at least one of the following beneficial technical effects:

(1) The separation component is matched with the detection component, so that the height of the detection probe can be adjusted according to the height of a product to be detected, the detection probe only needs to detect a vacuum area where the product to be detected is positioned, the conditions of large space in the isolation cover, long gas spreading time and the like are avoided, the detection speed is improved, and the detection time is saved; on the other hand, the surface of the product to be detected can be covered in a large range according to the appearance of the product to be detected, so that the detection probe can timely detect the gas at the air leakage point, the situation that the position distance between the air leakage point of the product to be detected and the detection probe is far, and the gas cannot be timely detected is avoided, and the detection efficiency is improved.

(2) The blades are gradually and tightly attached in the overturning process, so that the blades seal the middle part of the ring of the partition plate, and the partition plate partitions the space in the isolation cover, so that on one hand, the space in the vacuum area in the isolation cover is reduced, a detection probe only needs to detect the vacuum area where a product to be detected is located, the conditions of large space in the isolation cover, long gas spreading time and the like are avoided, the detection speed is improved, and the detection time is saved; on the other hand, the detection probe can directionally detect the divided vacuum area, so that the detection efficiency is improved.

(3) Through the design of the lifting piece, the partition board is close to the top of the product to be detected, on one hand, the partition board partitions the vacuum area where the product to be detected is located from other vacuum areas, so that the vacuum area to be detected is reduced, the detection probe only needs to detect the vacuum area where the product to be detected is located, the conditions of large space in the isolation cover, long gas spreading time and the like are avoided, the detection speed is improved, and the detection time is saved; on the other hand, the detection probe can directionally detect the divided vacuum area, so that the detection efficiency is improved.

(4) Through the mutual cooperation of the first detection shell fragment, the second detection shell fragment and the third detection shell fragment, the elasticity characteristics that the reuse shell fragment self had can make first detection shell fragment, second detection shell fragment and third detection shell fragment utilize elasticity to carry out closely laminating with the surface of the product that awaits measuring to make the surface close contact of test probe and the product that awaits measuring, make the gas that test probe can be timely detect the point of release, avoided the point of release of the product that awaits measuring far away with test probe's position distance, the condition that gas can't in time be detected, thereby improved detection speed, practiced thrift the detection time.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the tightness detection device in the vacuum environment.

FIG. 2 is a schematic view showing the overall structure of the support plate, the fitting groove, the input hole and the seal ring according to the present invention.

Fig. 3 is a bottom view of the external assembly of the present invention.

Fig. 4 is an exploded view of the separation assembly and the detection assembly of the present invention.

Fig. 5 is a schematic view showing the overall structure of the partition assembly according to the present invention.

FIG. 6 is a schematic view of the overall structure of the partition post and the extension bar of the present invention.

FIG. 7 is a dynamic schematic of a separator assembly according to the present invention.

Fig. 8 is a schematic view showing the overall structure of the lifting member, the rotating groove and the rotating hole in the present invention.

FIG. 9 is a schematic view of the internal structure of the isolation cover in the present invention.

FIG. 10 is a schematic diagram of the overall structure of the detecting assembly according to the present invention.

Fig. 11 is a front view of the inspection probe, inspection well and impact block of the present invention.

Reference numerals illustrate: 1. an external component; 11. a support frame; 12. a support plate; 121. a mating groove; 122. an input hole; 123. a seal ring; 124. a gas supply hose; 13. an isolation cover; 131. a ring plate; 132. an output pipe; 133. a vacuum hose; 134. a moving groove; 135. a seal ring; 136. a sliding groove; 137. a sliding block; 14. a vacuum pump; 15. a gas supply tank; 16. a product; 17. a hanging plate;

2. a partition assembly; 21. a partition plate; 22. a micro motor; 23. a drive bevel gear; 231. a rotating shaft; 24. a driven bevel gear; 25. a first rotating lever; 26. a sheet; 27. a second rotating lever; 28. a lifting member; 281. a lifting motor; 282. a screw rod; 283. a moving block; 29. a partition column; 291. an extension strip; 292. a rotating groove; 293. a rotation hole;

3. a detection assembly; 31. a first detection spring plate; 311. a first flipping hole; 312. a first flip lever; 313. a first torsion spring; 32. a second detection spring plate; 321. a second flipping hole; 322. a second flip lever; 323. a second torsion spring; 33. a third detection spring plate; 34. a detection probe; 35. a detection groove; 36. an anti-collision block.

Detailed Description

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

Referring to fig. 1-11, the present invention provides the following technical solutions:

referring to fig. 1-11, a tightness detecting device for vacuum environment includes an outer assembly 1, a partition assembly 2 and a detecting assembly 3; the external component 1 is used for providing a detection tool platform for the product 16 to be detected, so that the product 16 to be detected can be detected in an omnibearing manner; the separating component 2 has the function of dividing the vacuum space in the isolation cover 13 according to the appearance and the height of the product 16 to be detected, so that the space of the vacuum area in the isolation cover 13 is reduced, the detecting probe 34 only needs to detect the vacuum area where the product 16 to be detected is positioned, and the detection of a large range, long time and low efficiency is avoided, thereby improving the detection speed and saving the detection time; the detection probe 34 can directionally detect the divided vacuum areas, so that the detection efficiency is improved.

The detecting assembly 3 can cover the surface of the product 16 to be detected in a large range according to the shape of the product 16 to be detected, so that the detecting probe 34 can detect the gas at the air leakage point in time, thereby improving the detecting speed and saving the detecting time.

Compared with the traditional detection probe 34 which is at a fixed position and cannot perform detection in an omnibearing and timely manner, the detection assembly 3 is mutually matched with the separation assembly 2, so that on one hand, the height of the detection probe 34 can be adjusted according to the height of a product 16 to be detected, the detection probe 34 only needs to detect a vacuum area where the product 16 to be detected is positioned, the conditions of large space in the isolation cover 13, long gas spreading time and the like are avoided, the detection speed is improved, and the detection time is saved; on the other hand, the surface of the product 16 to be detected can be covered in a large range according to the appearance of the product 16 to be detected, so that the detection probe 34 can timely detect the gas at the air leakage point, the situation that the air leakage point of the product 16 to be detected is far away from the position of the detection probe 34 and the gas cannot be detected in time is avoided, and the detection efficiency is improved.

Referring to fig. 1, specifically, the external assembly 1 includes a support frame 11, a support plate 12 disposed on the top of the support frame 11, an isolation cover 13 disposed on a side of the support plate 12 away from the support frame 11, a vacuum pump 14 disposed on a side of the isolation cover 13, and a gas supply tank 15 disposed below the support frame 11.

The vacuum pump 14 is used for vacuumizing the space between the isolation cover 13 and the product 16 to be tested in the isolation cover 13, so that the space is in a vacuum environment, and the detection probe 34 is used for detecting air leakage of the product 16 to be tested; the gas supply tank 15 is used for conveying gas, such as helium, of the product 16 to be tested, if the product 16 to be tested has a gas leakage point, the helium can spread into the vacuum environment from the gas leakage point, and the detection probe 34 can detect the helium in time.

Referring to fig. 4 to 7, specifically, the partition assembly 2 is disposed in the isolation cover 13, and includes a partition plate 21, a micro motor 22 disposed on one side of the partition plate 21, a drive bevel gear 23 disposed at an output end of the micro motor 22, a driven bevel gear 24 uniformly disposed on one side of the drive bevel gear 23 close to the micro motor 22 in a circumferential direction, a first rotating rod 25 disposed on one end of the driven bevel gear 24 away from the drive bevel gear 23, a blade 26 disposed on one end of the first rotating rod 25 away from the driven bevel gear 24, a second rotating rod 27 disposed on one end of the blade 26 away from the first rotating rod 25, and a lifting member 28 disposed on a circumferential side wall of the partition plate 21.

The micro motor 22 is started to drive the drive bevel gear 23 to rotate, and the drive bevel gear 23 is meshed with the driven bevel gear 24 to drive the first rotating rod 25 to synchronously rotate when the driven bevel gear 24 rotates, so that the sheet 26 and the second rotating rod 27 rotate along with the drive bevel gear, and the sheet 26 turns around the middle part of the partition plate 21, when the turning side wall of one surface of the sheet 26 is level with the horizontal plane, the sheet 26 and the sheet 26 are mutually level, in the process, the sheet 26 and the sheet 26 are gradually and tightly attached to each other in the turning process, so that the sheet 26 seals the middle part of the ring of the partition plate 21, and the partition plate 21 partitions the space in the isolation cover 13, on one hand, the space of the vacuum area in the isolation cover 13 is reduced, the detection probe 34 only needs to detect the vacuum area where the product 16 to be detected is located, the conditions of large space in the isolation cover 13, long gas spreading time and the like are avoided, and the detection speed is improved, and the detection time is saved; on the other hand, the detection probe 34 can directionally detect the divided vacuum areas, so that the detection efficiency is improved.

Referring to fig. 4, 10-11, specifically, the detecting assembly 3 is uniformly disposed on a side of the partition plate 21 away from the micro motor 22 in a circumferential direction, and includes a first detecting spring 31, a second detecting spring 32 disposed at one end of the first detecting spring 31, a third detecting spring 33 disposed at one end of the second detecting spring 32 away from the first detecting spring 31, and a detecting probe 34 uniformly disposed on the same side of the first detecting spring 31, the second detecting spring 32 and the third detecting spring 33.

Through the design of the first detecting elastic piece 31, the second detecting elastic piece 32 and the third detecting elastic piece 33, the elastic characteristics of the elastic pieces are utilized, so that the first detecting elastic piece 31, the second detecting elastic piece 32 and the third detecting elastic piece 33 are tightly attached to the surface of the product 16 to be detected by utilizing elasticity, the detecting probe 34 is in close contact with the surface of the product 16 to be detected, the detecting probe 34 can timely detect the gas of the air leakage point, the situation that the air cannot be timely detected due to the fact that the position distance between the air leakage point of the product 16 to be detected and the detecting probe 34 is far is avoided, the detecting speed is improved, and the detecting time is saved.

Referring to fig. 2 and 9, further, one end of the isolation cover 13 is opened, the other end is closed, a ring plate 131 is arranged on the outer wall of the isolation cover 13, the ring plate 131 can be flush with the opening end of the isolation cover 13, a matching groove 121 is formed in the side wall, far away from the support frame 11, of the support plate 12, and the ring plate 131 can be matched and inserted into the matching groove 121.

Wherein, through the mutual joint cooperation of annular plate 131 and cooperation groove 121 for isolated cover 13 and backup pad 12 are fixed each other, have avoided the evacuation in-process, and isolated cover 13's rocking has thereby improved stability.

Referring to fig. 1-4, further, a product 16 is further disposed in the matching groove 121, an input hole 122 is formed at the bottom of the matching groove 121, the input hole 122 can penetrate through the side wall of the supporting plate 12, a sealing ring 123 is disposed in the input hole 122, an air supply hose 124 is disposed in the sealing ring 123, one end of the air supply hose 124 can be connected to the input end of the product 16, and the other end can be connected to the output end of the air supply tank 15; an output pipe 132 is arranged on the side wall of the closed end of the isolation cover 13, one end of the output pipe 132 can be communicated with the isolation cover 13, a vacuum hose 133 is arranged at the other end, and one end, far away from the output pipe 132, of the vacuum hose 133 can be connected to the input end of the vacuum pump 14.

The vacuum pump 14 is started, air in the isolation cover 13 is conveyed into the vacuum hose 133 through the output pipe 132, the air is pumped out along with the air entering the vacuum hose 133 into the vacuum pump 14, so that the interior of the isolation cover 13 is in a vacuum state, then the vacuum pump 14 is stopped, the air supply tank 15 is started, air is conveyed into the air supply hose 124, and the air spreads into the product 16 to be detected along the air supply hose 124, so that the interior of the product 16 to be detected is filled, and the purpose of detecting the tightness of the surface of the product 16 to be detected is achieved.

The sealing ring 123 is arranged in the input hole 122, so that the outside air is prevented from entering the vacuum environment in the isolation cover 13, and the tightness is ensured.

Referring to fig. 4-7, further, the partition plate 21 is annular, a partition column 29 is provided at the middle part in the annular of the partition plate 21, extension strips 291 are uniformly provided on the outer wall of the partition column 29, the extension strips 291 can be arranged flush with one end of the partition column 29, and one end of the extension strips 291 far away from the partition column 29 can be connected to the inner wall of the annular of the partition plate 21.

Wherein, through the mutual cooperation of the partition column 29 and the extension strip 291, a supporting effect is provided for the partition column 29, so that the partition column 29 is positioned at the inner center of the ring of the partition plate 21, thereby uniformly distributing the sheets 26 around the partition column 29.

Referring to fig. 4-7, further, a rotation groove 292 is formed at one end of the partition column 29 away from the extension bar 291, the driving bevel gear 23 is located in the rotation groove 292, a rotation shaft 231 is disposed in a central hole of the driving bevel gear 23, one end of the rotation shaft 231 can be connected to an output end of the micro motor 22, the other end can be rotatably connected to a bottom of the rotation groove 292, and the driving bevel gear 23 can be engaged with and driven with the driven bevel gear 24.

The outer wall of the partition column 29 is uniformly provided with rotating holes 293, the rotating holes 293 can penetrate through the side wall of the partition column 29 and are communicated with the rotating grooves 292, and one end of the first rotating rod 25, which is far away from the leaf 26, can be connected with one end of the driven bevel gear 24, which is far away from the drive bevel gear 23, through the rotating holes 293; the blades 26 are fan-shaped, the blades 26 can be uniformly distributed in the inner ring of the partition plate 21 in the circumferential direction, the blades 26 and the blades 26 can be tightly attached to each other, and one end, far away from the blades 26, of the second rotating rod 27 can be rotatably connected to the inner wall of the inner ring of the partition plate 21.

Wherein the design of the rotating groove 292 provides a rotating space for the drive bevel gear 23 and the driven bevel gear 24; when the driven bevel gear 24 rotates, the first rotating rod 25 is driven to rotate in the rotating groove 292, so that the page 26 and the second rotating rod 27 are driven to synchronously rotate, and as the page 26 is in a fan shape, the page 26 and the page 26 are gradually and tightly attached to each other in the overturning process until the page 26 is flush with each other, so that the page 26 seals the middle part of the ring of the partition plate 21, and the partition plate 21 partitions the space in the isolation cover 13, on one hand, the space of a vacuum area in the isolation cover 13 is reduced, the detection probe 34 only needs to detect the vacuum area where the product 16 to be detected is located, the conditions of large space in the isolation cover 13, long gas spreading time and the like are avoided, the detection speed is improved, and the detection time is saved; on the other hand, the detection probe 34 can directionally detect the divided vacuum areas, so that the detection efficiency is improved.

In the second embodiment, referring to fig. 8-9, further, the lifting member 28 includes a lifting motor 281, a screw 282 disposed at an output end of the lifting motor 281, and a moving block 283 sleeved on the screw 282; the lifting motor 281 is located at one side of the support plate 12 close to the support frame 11, a suspension plate 17 is arranged in the middle of the side wall of the support plate 12 close to the support frame 11, and the side wall of the suspension plate 17 can be connected to the bottom of the lifting motor 281.

The inner wall of the isolation cover 13 is provided with a moving groove 134, the moving groove 134 can extend and distribute along the height direction of the isolation cover 13, the lead screw 282 is distributed in the moving groove 134, one end of the lead screw 282 can be rotationally connected to the top of the inner wall of the isolation cover, the other end of the lead screw 282 can penetrate through the side wall of the support plate 12 and is connected to the output end of the lifting motor 281, the penetrating part of the lead screw 282 and the support plate 12 is provided with a sealing ring 135, the moving block 283 can slide in the moving groove 134 in a matched manner, and the side wall of the moving block 283 can be connected to the annular outer wall of the partition plate 21.

When the height position between the partition plate 21 and the product 16 to be detected needs to be adjusted, the lifting motor 281 is started to drive the screw rod 282 to rotate in the moving groove 134, so that the moving block 283 which is in fit connection with the thread groove on the surface of the screw rod 282 moves up and down on the screw rod 282, and further drives the partition plate 21 connected with the moving block 283 to synchronously move up and down, so that the partition plate 21 approaches the top of the product 16 to be detected, on one hand, the partition plate 21 partitions a vacuum area where the product 16 to be detected from other vacuum areas, so that the vacuum area needing to be detected is reduced, the detection probe 34 only needs to detect the vacuum area where the product 16 to be detected is, the conditions of large space in the isolation cover 13, long gas spreading time and the like are avoided, the detection speed is improved, and the detection time is saved; on the other hand, the detection probe 34 can directionally detect the divided vacuum areas, so that the detection efficiency is improved.

Referring to fig. 8-9, further, sliding grooves 136 are further formed in the inner wall of the isolation cover 13, the number of the sliding grooves 136 is three, one sliding groove 136 is opposite to the moving groove 134, the other two sliding grooves 136 are opposite to each other and are vertically distributed with the moving groove 134, the sliding grooves 136 can extend and distribute along the height direction of the isolation cover 13, sliding blocks 137 are arranged in the sliding grooves 136, and the side wall, away from the sliding grooves 136, of the sliding blocks 137 can be connected to the annular outer wall of the partition plate 21.

Wherein, in the process of the up-and-down movement of the partition plate 21, since the three sliding blocks 137 are connected with the partition plate 21, the three sliding blocks 137 are driven to slide synchronously in the three sliding grooves 136, so that the friction force of the partition plate 21 during the movement is reduced, and the purposes of sliding displacement and guiding are achieved.

Referring to fig. 10-11, further, the first detecting spring 31 is arc-shaped, one side of the first detecting spring 31 can be connected to the side wall of the partition plate 21 far away from the micro motor 22, the other end is provided with a first turning hole 311, a first turning rod 312 is arranged in the first turning hole 311, a first torsion spring 313 is sleeved on the first turning rod 312, two ends of the first torsion spring 313 can be connected to the inner wall of the first turning hole 311, and one end of the first turning rod 312 can be rotatably connected to one side of the second detecting spring 32.

The second turnover hole 321 is formed in one end, far away from the first turnover rod 312, of the second detection elastic sheet 32, the second turnover rod 322 is arranged in the second turnover hole 321, the second torsion spring 323 is sleeved on the second turnover rod 322, two ends of the second torsion spring 323 can be connected to the inner wall of the second turnover hole 321, and one end of the second turnover rod 322 can be rotationally connected to one side of the third detection elastic sheet 33.

Wherein, in the process that division board 21 moves to the product 16 that awaits measuring, because first detection shell fragment 31 is the arc, the protruding face of first detection shell fragment 31 can contact the surface of product 16 that awaits measuring earlier, and test probe 34 is located one side of the protruding face of first detection shell fragment 31 to in order to detect the leakproofness of test probe 34 to the surface of product 16 that awaits measuring, avoided the longer with the position distance of test probe 34 of the bleeder point of product 16 that awaits measuring, the gas can't in time by the condition of detection, thereby improved detection speed, practiced thrift the detection time.

If the volume of the product 16 to be measured in the horizontal direction is wider, the separation plate 21 will push the first detecting spring 31 outwards during the downward movement, and the first detecting spring 31 will deform under the elastic characteristic of itself, so that the first detecting spring 31 will gradually expand outwards to adapt to the detection of the product 16 to be measured with different widths, thereby improving the practicality.

When the width direction of the product 16 to be detected extrudes the second detection elastic sheet 32 outwards, the first turnover rod 312 in the first turnover hole 311 is driven to rotate, the first torsion spring 313 is elastically deformed, and the second detection elastic sheet 32 is deformed under the characteristic of elasticity, so that one side of the second detection elastic sheet 32, which is close to the detection probe 34, is tightly attached to the surface of the product 16 to be detected, and the detection probe 34 is used for detecting the tightness of the surface of the product 16 to be detected, so that the situation that the air leakage point of the product 16 to be detected is far from the position distance of the detection probe 34, and the air cannot be detected timely is avoided, the detection speed is improved, and the detection time is saved.

If the force of the product 16 to be tested pressing the second detecting spring 32 is lost, the first torsion spring 313 will resume the deformation, and the second detecting spring 32 will rebound to the free state.

When the product to be detected 16 extrudes the third detection elastic sheet 33 outwards, the second turnover rod 322 in the second turnover hole 321 is driven to rotate, the second torsion spring 323 is elastically deformed, the third detection elastic sheet 33 is deformed under the characteristic of elasticity, so that one side of the third detection elastic sheet 33, which is close to the detection probe 34, is tightly attached to the surface of the product to be detected 16, the detection probe 34 is used for detecting the tightness of the surface of the product to be detected 16, the situation that the air leakage point of the product to be detected 16 is far from the position of the detection probe 34, and the air cannot be detected timely is avoided, so that the detection speed is improved, and the detection time is saved.

If the force of the product 16 to be tested pressing the third detecting spring 33 is lost, the second torsion spring 323 will resume the deformation, and the third detecting spring 33 will rebound to the free state.

Referring to fig. 10-11, further, the side walls of the same sides of the first detecting spring 31, the second detecting spring 32 and the third detecting spring 33 are provided with detecting grooves 35, the detecting grooves 35 are uniformly distributed along the length direction of the first detecting spring 31, the second detecting spring 32 and the third detecting spring 33, the detecting probes 34 are located in the detecting grooves 35, and anti-collision blocks 36 are arranged on the protruding side walls between the detecting grooves 35 and the detecting grooves 35.

The design of the detection groove 35 and the detection probe 34 avoids the damage of the detection probe 34 in the process of attaching the first detection spring piece 31, the second detection spring piece 32 and the third detection spring piece 33 to the product 16 to be detected, and prolongs the service life of the detection probe 34; the anti-collision block 36 is used for avoiding the phenomenon that the surface of the product 16 to be tested is damaged when the first detection elastic piece 31, the second detection elastic piece 32 and the third detection elastic piece 33 are attached to the product 16 to be tested, thereby ensuring the integrity of the product 16 to be tested.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

Claims (10)

1. A tightness detection device of a vacuum environment is characterized in that: comprising the steps of (a) a step of,

the external assembly (1) comprises a support frame (11), a support plate (12) arranged at the top of the support frame (11), an isolation cover (13) arranged at one side of the support plate (12) far away from the support frame (11), a vacuum pump (14) arranged at one side of the isolation cover (13), and a gas supply tank (15) arranged below the support frame (11);

the separation assembly (2) is arranged in the isolation cover (13) and comprises a separation plate (21), a micro motor (22) arranged on one side of the separation plate (21), a drive bevel gear (23) arranged at the output end of the micro motor (22), a driven bevel gear (24) uniformly arranged on one side of the drive bevel gear (23) close to the micro motor (22) in the circumferential direction, a first rotating rod (25) arranged on one end, far away from the drive bevel gear (23), of the driven bevel gear (24), a sheet (26) arranged on one end, far away from the driven bevel gear (24), of the first rotating rod (25), a second rotating rod (27) arranged on one end, far away from the first rotating rod (25), of the sheet (26), and a lifting piece (28) arranged on the side wall of the circumference direction of the separation plate (21); the method comprises the steps of,

the detection assembly (3) is uniformly arranged on one side, far away from the micro motor (22), of the separation plate (21), and comprises a first detection spring piece (31), a second detection spring piece (32) arranged on one end of the first detection spring piece (31), a third detection spring piece (33) arranged on one end, far away from the first detection spring piece (31), of the second detection spring piece (32), and a detection probe (34) uniformly arranged on the same side as the first detection spring piece (31), the second detection spring piece (32) and the third detection spring piece (33).

2. The vacuum environment tightness detection device according to claim 1, wherein: one end opening of isolated cover (13), the other end is sealed, be provided with annular plate (131) on the outer wall of isolated cover (13), annular plate (131) can flush setting with the open end of isolated cover (13), set up mating groove (121) on the lateral wall that support frame (11) was kept away from to backup pad (12), annular plate (131) can cooperate grafting in mating groove (121).

3. The vacuum environment tightness detection device according to claim 2, wherein: the device is characterized in that a product (16) is further arranged in the matching groove (121), an input hole (122) is formed in the bottom of the matching groove (121), the input hole (122) can penetrate through the side wall of the supporting plate (12), a sealing ring (123) is arranged in the input hole (122), an air supply hose (124) is arranged in the sealing ring (123), one end of the air supply hose (124) can be connected to the input end of the product (16), and the other end of the air supply hose can be connected to the output end of the air supply tank (15);

an output pipe (132) is arranged on the side wall of the closed end of the isolation cover (13), one end of the output pipe (132) can be communicated with the isolation cover (13), a vacuum hose (133) is arranged at the other end of the output pipe, and one end, far away from the output pipe (132), of the vacuum hose (133) can be connected to the input end of the vacuum pump (14).

4. The vacuum environment tightness detection device according to claim 1, wherein: the division board (21) is cyclic annular, the intra-annular middle part of division board (21) is provided with partition post (29), evenly be provided with extension strip (291) on the outer wall of partition post (29), extension strip (291) can flush setting with the one end of partition post (29), the one end of keeping away from partition post (29) of extension strip (291) can connect in the intra-annular wall of division board (21).

5. The vacuum environment tightness detection device according to claim 4, wherein: the utility model discloses a motor drive bevel gear, including extension strip (291) and drive bevel gear (23), separate post (29) one end of keeping away from extension strip (291) and seted up rotation groove (292), drive bevel gear (23) are located rotation groove (292), be provided with axis of rotation (231) in the centre bore of drive bevel gear (23), one end of axis of rotation (231) can connect in the output of micro motor (22), the other end can rotate and connect in the bottom of rotation groove (292), drive bevel gear (23) can the meshing drive in driven bevel gear (24).

6. The vacuum environment tightness detection device according to claim 5, wherein: the outer wall of the separation column (29) is uniformly provided with rotating holes (293), the rotating holes (293) can penetrate through the side wall of the separation column (29) and are communicated with the rotating grooves (292), and one end of the first rotating rod (25) far away from the page piece (26) can be connected with one end of the driven bevel gear (24) far away from the driving bevel gear (23) through the rotating holes (293);

the blades (26) are fan-shaped, the blades (26) can be uniformly distributed in the inner ring of the partition plate (21) in the circumferential direction, the blades (26) and the blades (26) can be tightly attached to each other, and one end, far away from the blades (26), of the second rotating rod (27) can be rotationally connected to the inner ring wall of the partition plate (21).

7. A vacuum environment tightness detection device according to any of claims 1-3, characterized in that: the lifting piece (28) comprises a lifting motor (281), a screw rod (282) arranged at the output end of the lifting motor (281), and a moving block (283) sleeved on the screw rod (282);

the lifting motor (281) is located at one side, close to the supporting frame (11), of the supporting plate (12), a hanging plate (17) is arranged in the middle of the side wall, close to the supporting frame (11), of the supporting plate (12), and the side wall of the hanging plate (17) can be connected to the bottom of the lifting motor (281);

the utility model discloses a seal ring structure, including baffle plate (21), baffle plate (283), movable groove (134) have been seted up on the inner wall of isolated cover (13), movable groove (134) can be followed the direction of height extension distribution of isolated cover (13), lead screw (282) are distributed in movable groove (134), one end of lead screw (282) can rotate to be connected in the inner wall top of separating the cover, the other end can run through the lateral wall of backup pad (12) and connect in the output of elevator motor (281), the department of running through of lead screw (282) and backup pad (12) is provided with sealing washer (135), movable block (283) can cooperate slide in movable groove (134), the lateral wall of movable block (283) can connect in the outer wall of ring of baffle plate (21).

8. The vacuum environment tightness detection device according to claim 7, wherein: the inner wall of the isolation cover (13) is also provided with three sliding grooves (136), one sliding groove (136) is arranged opposite to the moving groove (134), the other two sliding grooves (136) are arranged opposite to each other and are vertically distributed with the moving groove (134), the sliding grooves (136) can extend and distribute along the height direction of the isolation cover (13), sliding blocks (137) are arranged in the sliding grooves (136), and the side walls of the sliding blocks (137) away from the sliding grooves (136) can be connected to the outer wall of the partition plate (21).

9. The vacuum environment tightness detection device according to claim 1, wherein: the first detection spring piece (31) is arc-shaped, one side of the first detection spring piece (31) can be connected to the side wall, far away from the miniature motor (22), of the partition plate (21), a first overturning hole (311) is formed in the other end of the first detection spring piece, a first overturning rod (312) is arranged in the first overturning hole (311), a first torsion spring (313) is sleeved on the first overturning rod (312), two ends of the first torsion spring (313) can be connected to the inner wall of the first overturning hole (311), and one end of the first overturning rod (312) can be rotatably connected to one side of the second detection spring piece (32);

the second turnover hole (321) is formed in one end, far away from the first turnover rod (312), of the second detection elastic sheet (32), the second turnover rod (322) is arranged in the second turnover hole (321), the second torsion spring (323) is sleeved on the second turnover rod (322), two ends of the second torsion spring (323) can be connected to the inner wall of the second turnover hole (321), and one end of the second turnover rod (322) can be rotationally connected to one side of the third detection elastic sheet (33).

10. The vacuum environment tightness detection device according to claim 9, wherein: detection groove (35) have all been seted up on the lateral wall of first detection shell fragment (31), second detection shell fragment (32) and third detection shell fragment (33) homonymy, detection groove (35) are along the length direction evenly distributed of first detection shell fragment (31), second detection shell fragment (32) and third detection shell fragment (33), detection probe (34) are located detection groove (35), be provided with crashproof piece (36) on the protruding lateral wall between detection groove (35) and detection groove (35).