CN218297504U

CN218297504U - Air tightness verifying device for experimental equipment

Info

Publication number: CN218297504U
Application number: CN202221847944.9U
Authority: CN
Inventors: 张玉霞; 赵守强
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-17
Filing date: 2022-07-17
Publication date: 2023-01-13
Anticipated expiration: 2032-07-17

Abstract

The utility model relates to the technical field of air tightness detection, in particular to an air tightness detection device for experimental equipment, which can eliminate the detection error of the device and improve the accuracy of the air tightness detection of the experimental equipment; the device comprises a base plate, the work box, the detection case, the air pump, the trachea, the barometer, the roof, the pillar, the electricity jar, sealed lid, the water tank, water pipe and leakproofness detection device, work box fixed mounting is at the bottom plate up end, detection case fixed mounting is inside the work box, air pump fixed mounting is at the bottom plate up end, communicate each other through the trachea between air pump output and the detection case, the trachea passes the preceding terminal surface of work box, be equipped with solenoid valve and barometer on the trachea, and the barometer is in the left side of solenoid valve, the roof leads to multiunit pillar fixed mounting at the bottom plate up end, electricity jar fixed mounting is at the roof up end, water tank fixed mounting is at the rear portion of bottom plate up end, communicate each other through the water pipe between water tank and the work box, leakproofness detection unit installs on the water pipe.

Description

Air tightness verifying device for experimental equipment

Technical Field

The utility model relates to a technical field that the gas tightness detected especially relates to a gas tightness verifying attachment for experimental device.

Background

In chemical experiments, experimental equipment is often required to be used for experiments, sometimes, the tightness of the experimental equipment needs to be ensured according to specific experimental projects, so that serious consequences such as pollution or poisoning caused by leakage of gas or liquid are reduced, therefore, the airtightness of the experimental equipment needs to be detected before the experiments are carried out, the existing airtightness detection device mainly comprises a detection box, a sealing cover, an air pump, a control valve and a pressure gauge, a vent pipe is arranged on the sealing cover in a communicating mode, the control valve is arranged on the vent pipe, the pressure gauge is installed on the detection box, in operation, the experimental equipment is placed in the detection box, then the sealing cover is covered on the detection box, the two are generally connected with each other through a buckle, then the air pump is used for inflating the detection box, a certain pressure is formed inside the detection box, then the control valve is closed, waiting for a period of time, the pressure change after the inflation of the pressure gauge is completed and after the inflation is stood for a period of time is compared, so as to judge whether the airtightness of the experimental equipment is good, but certain defects exist in the device, when the sealing cover is covered on the detection box, whether the air leakage exists between the detection box, and therefore, the accurate sealing error of the experimental equipment can be easily caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a can get rid of device self detection error, and improve a gas tightness verifying attachment for experimental facilities to the accuracy that the experimental facilities gas tightness detected.

The utility model discloses a gas tightness verifying attachment for experimental device, comprising a base plate, the work box, the detection case, the air pump, the trachea, the solenoid valve, the barometer, the roof, the multiunit pillar, the electricity jar, sealed lid, the water tank, water pipe and leakproofness detection device, work box fixed mounting is at bottom plate up end, detection case fixed mounting is inside the work box, air pump fixed mounting is at the bottom plate up end, communicate each other through the trachea between air pump output and the detection case, the trachea passes the preceding terminal surface of work box, be equipped with solenoid valve and barometer on the trachea, and the barometer is in the left side of solenoid valve, the roof leads to multiunit pillar fixed mounting at bottom plate up end, the electricity jar fixed mounting is at the roof up end, the electricity jar output passes the roof and is connected with sealed lid fixed, sealed lid can cover the detection case, the water tank fixed mounting is at the rear portion of bottom plate up end, communicate each other through the water pipe between water tank and the work box, the leakproofness detection subassembly is installed on the water pipe; at first place experimental device inside the detection case, then start the electric jar, make sealed lid dress on the detection case, then start the air pump, and under tracheal intercommunication, aerify to the detection incasement portion, observe the barometer, make the inside atmospheric pressure of detection case reach certain numerical value and take notes, close the solenoid valve simultaneously, then static waiting for a period, observe again whether there is the change in the registration of barometer, if the registration reduces, then experimental device's gas tightness is relatively poor, if the registration is unchangeable, then experimental device's gas tightness is good.

Preferably, the sealing detection assembly comprises a piston plate, a shaft seat, a spiral pipe, a screw rod, a first bevel gear and a driving assembly, the piston plate is slidably mounted inside the water tank, the piston plate is in close contact with the inner side wall of the water tank, the shaft seat is fixedly mounted on the upper end face of the water tank, the spiral pipe is rotatably mounted on the shaft seat, the screw rod penetrates through the spiral pipe and is screwed in the spiral pipe, the lower end of the screw rod slidably extends into the water tank and is fixedly connected with the upper end face of the piston plate, the first bevel gear is fixedly mounted on the spiral pipe and is in driving connection with the driving assembly, and the driving assembly is mounted on the water tank; first bevel gear drives the screwed pipe and rotates under drive assembly's drive, thereby make the screw rod drive the piston plate and reciprocate, and then make the device can be convenient for control the liquid level inside the work box, when sealed lid dress carries out the gas tightness detection on the detection case, the piston plate moves down, and under the intercommunication effect of water pipe, make the inside water of water tank carry to the work box inside, and make the liquid level of the inside water of work box be higher than the junction between sealed lid and the detection case, thereby can judge the leakproofness between sealed lid and the detection case, and then can remove device self detection error, and improve the accuracy that detects experimental device gas tightness.

Preferably, the driving assembly comprises a motor, a first synchronizing wheel, a fixed block, a rotating shaft, a second synchronizing wheel and a synchronous belt, the motor is fixedly installed on the upper end face of the bottom plate, the first synchronizing wheel is fixedly connected with the output end of the water pipe, the fixed block is fixedly installed on the upper end face of the water tank, the rotating shaft penetrates through and is rotatably installed on the fixed block, the second synchronizing wheel is fixedly connected with the left end of the fixed block, the second synchronizing wheel is meshed with the first bevel gear, the second synchronizing wheel is fixedly connected with the right end of the rotating shaft, and the second synchronizing wheel is connected with the first synchronizing wheel through the synchronous belt; the first synchronizing wheel rotates under the driving of the motor, and the rotating shaft drives the second bevel gear to rotate under the transmission connection effect of the synchronous belt and the second synchronizing wheel, so that the first bevel gear drives the spiral pipe to rotate, the device can automatically control the liquid level inside the working box, and the automation degree of the device is improved.

Preferably, the device also comprises a controller, the controller is fixedly arranged on the upper end surface of the top plate, and the air pump, the electric cylinder and the motor are electrically connected with the controller; through setting up the controller, can be convenient for carry out effective control to air pump, electric jar and motor, make can the operation of mutually supporting between each partial structure of device, improve the convenience of device operation.

Preferably, the device also comprises a plurality of groups of suckers which are uniformly distributed and fixedly arranged on the lower end surface of the bottom plate; through setting up the sucking disc, can be convenient for carry out the outrigger to the bottom plate, reduce the device and appear in the condition that the working process takes place vibrations displacement, the stability of good device is good.

Preferably, the front end surface of the working box is provided with a liquid level observation window; through setting up the liquid level observation window, can be convenient for observe understanding the liquid level height inside the work box, make the liquid level height inside the operating personnel can the effective control work box, improve the operability of device.

Compared with the prior art, the beneficial effects of the utility model are that: placing experimental equipment inside a detection box, starting an electric cylinder, driving a sealing cover to move downwards and enabling the sealing cover to be covered on the detection box by the electric cylinder, then starting a motor, driving a first synchronous wheel to rotate by the motor, driving a second bevel gear to rotate by a rotating shaft under the transmission connection action of a synchronous belt and the second synchronous wheel, driving a solenoid to rotate by the first bevel gear, enabling a piston plate to move downwards under the connection action of a screw rod, enabling water inside a water tank to be pressed into the interior of the working box under the communication action of a water pipe, enabling the liquid level of the water inside the working box to be higher than the connection position between the sealing cover and the detection box, then starting an air pump, and under the communication action of an air pipe, aerify to the detection incasement portion, whether observe the junction between detection case and the sealed lid and have the bubble to produce, if produce the bubble, then the leakproofness between detection case and the sealed lid is relatively poor, need overhaul detection case and sealed lid, if no bubble produces, observe the barometer, make the inside atmospheric pressure of detection case reach certain numerical value and carry out the record, close the solenoid valve simultaneously, then static wait for a period, again observe whether there is the change in the registration of barometer, if the registration reduces, then the gas tightness of experimental device is relatively poor, if the registration does not change, then the gas tightness of experimental device is good, and then make the device self detection error of exclusion system, and improve the accuracy that detects experimental device gas tightness.

Drawings

Fig. 1 is a schematic view of a first axial structure of the present invention;

fig. 2 is a schematic diagram of a second axial measurement structure of the present invention;

fig. 3 is a schematic view of a third axial measurement structure of the present invention;

FIG. 4 is a schematic view of the axial structure of the present invention with a partial cross-section;

in the drawings, the reference numbers: 1. a base plate; 2. a work box; 3. a detection box; 4. an air pump; 5. an air tube; 6. an electromagnetic valve; 7. a barometer; 8. a top plate; 9. a support post; 10. an electric cylinder; 11. a sealing cover; 12. a water tank; 13. a water pipe; 14. a piston plate; 15. a shaft seat; 16. a solenoid; 17. a screw; 18. a first bevel gear; 19. a motor; 20. a first synchronizing wheel; 21. a fixed block; 22. a rotating shaft; 23. a second bevel gear; 24. a second synchronizing wheel; 25. a synchronous belt; 26. a controller; 27. and (4) sucking discs.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Example 1

As shown in fig. 1 to 4, a working box 2 is fixedly installed on the upper end surface of a bottom plate 1, a liquid level observation window is arranged on the front end surface of the working box 2, a detection box 3 is fixedly installed inside the working box 2, an air pump 4 is fixedly installed on the upper end surface of the bottom plate 1, the output end of the air pump 4 is communicated with the detection box 3 through an air pipe 5, the air pipe 5 passes through the front end surface of the working box 2, the air pipe 5 is provided with an electromagnetic valve 6 and an air pressure gauge 7, the air pressure gauge 7 is positioned on the left side of the electromagnetic valve 6, a top plate 8 is fixedly installed on the upper end surface of the bottom plate 1 through a plurality of groups of supporting columns 9, an electric cylinder 10 is fixedly installed on the upper end surface of the top plate 8, the output end of the electric cylinder 10 passes through the top plate 8 and is fixedly connected with a sealing cover 11, the sealing cover 11 can be covered on the detection box 3, a water tank 12 is fixedly installed on the rear portion of the upper end surface of the bottom plate 1, the water tank 12 is communicated with the working box 2 through a water pipe 13, a piston plate 14 is slidably installed inside the water tank 12, the piston plate 14 is closely contacted with the inner side wall of the water tank 12, the shaft seat 15 is fixedly arranged on the upper end surface of the water tank 12, the screw tube 16 is rotatably arranged on the shaft seat 15, the screw rod 17 penetrates through and is screwed in the screw tube 16, the lower end of the screw rod 17 extends into the water tank 12 in a sliding manner and is fixedly connected with the upper end surface of the piston plate 14, the first bevel gear 18 is fixedly arranged on the screw tube 16, the motor 19 is fixedly arranged on the upper end surface of the bottom plate 1, the first synchronizing wheel 20 is fixedly connected with the output end of the water pipe 13, the fixed block 21 is fixedly arranged on the upper end surface of the water tank 12, the rotating shaft 22 penetrates through and is rotatably arranged on the fixed block 21, the second synchronizing wheel 23 is fixedly connected with the left end of the fixed block 21, the second synchronizing wheel 23 is mutually meshed with the first bevel gear 18, the second synchronizing wheel 24 is fixedly connected with the right end of the rotating shaft 22, and the second synchronizing wheel 24 is mutually connected with the first synchronizing wheel 20 through the synchronous belt 25, the controller 26 is fixedly arranged on the upper end face of the top plate 8, the air pump 4, the electric cylinder 10 and the motor 19 are electrically connected with the controller 26, and the plurality of groups of suckers 27 are uniformly distributed and fixedly arranged on the lower end face of the bottom plate 1; firstly, the device is fixedly placed on a workbench under the action of a suction cup 27, then experimental equipment is placed inside a detection box 3, an electric cylinder 10 is started through an operation controller 26, the electric cylinder 10 drives a sealing cover 11 to move downwards and enables the sealing cover 11 to cover the detection box 3, then a motor 19 is started, a first synchronous wheel 20 is driven by the motor 19 to rotate, a rotating shaft 22 drives a second bevel gear 23 to rotate under the transmission connection action of a synchronous belt 25 and a second synchronous wheel 24, so that a first bevel gear 18 drives a screw pipe 16 to rotate, a piston plate 14 is driven to move downwards under the connection action of a screw 17, water inside a water tank 12 is pressed into the working box 2 under the communication action of a water pipe 13, and the liquid level of the water inside the working box 2 is higher than the connection position between the sealing cover 11 and the detection box 3, then starting the air pump 4, inflating the detection box 3 under the communication action of the air pipe 5, observing whether bubbles are generated at the joint between the detection box 3 and the sealing cover 11, if bubbles are generated, the sealing performance between the detection box 3 and the sealing cover 11 is poor, needing to overhaul the detection box 3 and the sealing cover 11, if no bubbles are generated, observing the air pressure gauge 7 to enable the air pressure inside the detection box 3 to reach a certain value and record, closing the electromagnetic valve 6, then standing for a period of time, observing whether the indication number of the air pressure gauge 7 changes again, if the indication number is reduced, the air tightness of the experimental equipment is poor, if the indication number is not changed, the air tightness of the experimental equipment is good, after the detection is finished, starting the motor 19 to enable the piston plate 14 to move upwards, and further enabling the liquid level inside the working box 2 to be reduced and lower than the upper end face of the detection box 3, and then starting the electric cylinder 10 to enable the sealing cover 11 to move upwards, and then taking out the experimental device.

The air tightness verifying device for the experimental equipment has the advantages that the installation mode, the connection mode or the setting mode are common mechanical modes, and the air tightness verifying device can be implemented as long as the beneficial effects are achieved; the utility model discloses a gas tightness verifying attachment's for experimental device detection case 3, solenoid valve 6, barometer 7, sealed lid 11 and controller 26 for purchase on the market, this industry technical staff only need according to its subsidiary service instruction install with the operation can, and need not the technical staff in the field and pay out creative work.

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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The air tightness detection device for the experimental equipment is characterized by comprising a bottom plate (1), a working box (2), a detection box (3), an air pump (4), an air pipe (5), an electromagnetic valve (6), a barometer (7), a top plate (8), a plurality of groups of support columns (9), an electric cylinder (10), a sealing cover (11), a water tank (12), a water pipe (13) and a tightness detection device, wherein the working box (2) is fixedly arranged on the upper end surface of the bottom plate (1), the detection box (3) is fixedly arranged inside the working box (2), the air pump (4) is fixedly arranged on the upper end surface of the bottom plate (1), the output end of the air pump (4) is communicated with the detection box (3) through the air pipe (5), the air pipe (5) penetrates through the front end surface of the working box (2), the electromagnetic valve (6) and the barometer (7) are arranged on the air pipe (5), the barometer (7) is positioned on the left side of the electromagnetic valve (6), the top plate (8) is fixedly arranged on the upper end surface of the bottom plate (1) through the plurality of groups of support columns (9), the electric cylinder (10) is fixedly arranged on the upper end surface of the top plate (8), the electric cylinder (10), the output end surface of the top plate (8) is fixedly connected with the sealing cover (11) and can be fixedly arranged on the detection box (11), the water tank (12) is fixedly arranged at the rear part of the upper end surface of the bottom plate (1), the water tank (12) and the working box (2) are communicated with each other through a water pipe (13), and the tightness detection assembly is arranged on the water pipe (13).

2. The air tightness testing device for the experimental equipment as claimed in claim 1, wherein the sealing detection assembly comprises a piston plate (14), a shaft seat (15), a spiral tube (16), a screw rod (17), a first bevel gear (18) and a driving assembly, the piston plate (14) is slidably mounted inside the water tank (12), the piston plate (14) is in close contact with the inner side wall of the water tank (12), the shaft seat (15) is fixedly mounted on the upper end surface of the water tank (12), the spiral tube (16) is rotatably mounted on the shaft seat (15), the screw rod (17) penetrates through and is screwed in the spiral tube (16), the lower end of the screw rod (17) is slidably inserted into the water tank (12) and is fixedly connected with the upper end surface of the piston plate (14), the first bevel gear (18) is fixedly mounted on the spiral tube (16), the first bevel gear (18) is in driving connection with the driving assembly, and the driving assembly is mounted on the water tank (12).

3. The air tightness testing device for the experimental equipment as claimed in claim 2, wherein the driving assembly comprises a motor (19), a first synchronous wheel (20), a fixed block (21), a rotating shaft (22), a second synchronous wheel (23), a second synchronous wheel (24) and a synchronous belt (25), the motor (19) is fixedly installed on the upper end surface of the base plate (1), the first synchronous wheel (20) is fixedly connected with the output end of the water pipe (13), the fixed block (21) is fixedly installed on the upper end surface of the water tank (12), the rotating shaft (22) penetrates through and is rotatably installed on the fixed block (21), the second synchronous wheel (23) is fixedly connected with the left end of the fixed block (21), the second synchronous wheel (23) is meshed with the first bevel gear (18), the second synchronous wheel (24) is fixedly connected with the right end of the rotating shaft (22), and the second synchronous wheel (24) is connected with the first synchronous wheel (20) through the synchronous belt (25).

4. The airtightness testing apparatus for experimental devices according to claim 3, further comprising a controller (26), wherein the controller (26) is fixedly mounted on the upper end surface of the top plate (8), and the air pump (4), the electric cylinder (10) and the motor (19) are electrically connected to the controller (26).

5. The airtightness verifying apparatus for laboratory equipment according to claim 1, further comprising a plurality of sets of suction cups (27), wherein the plurality of sets of suction cups (27) are uniformly distributed and fixedly mounted on the lower end surface of the base plate (1).

6. The airtightness verifying apparatus for experimental device according to claim 1, wherein the front end surface of the work box (2) is provided with a liquid level observation window.