CN215414229U

CN215414229U - Vacuum pump gas tightness check out test set

Info

Publication number: CN215414229U
Application number: CN202120904536.1U
Authority: CN
Inventors: 久军; 刘冲
Original assignee: Tianjin Ruisheng Xingye Technology Co ltd
Current assignee: Tianjin Ruisheng Xingye Technology Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2022-01-04
Anticipated expiration: 2031-04-28

Abstract

The application provides a vacuum pump gas tightness check out test set belongs to vacuum pump technical field. The vacuum pump air tightness detection device comprises a detection mechanism and a moving mechanism. The detection mechanism comprises a support, a first supporting plate, a detection box and an inflation assembly, wherein the first supporting plate is arranged into two parts, two parts are connected to one side of the support, the detection box is installed to one side of the support, and the inflation assembly is connected to one side of the detection box. This application is through motor, the threaded rod, the slider, first pneumatic cylinder, and a support, the second pneumatic cylinder, the extension board, the kicking block, first baffle, a spring, the second baffle, the connector, the effect of air pump and flexible pipe, thereby reached the vacuum pump and be difficult for appearing the purpose that removes when pouring into gas into, press from both sides tight vacuum pump through the centre gripping structure, make vacuum pump gas tightness check out test set in the testing process, be difficult for appearing removing when pouring into gas into, make the vacuum pump stable, good stability, improve the accuracy of gas tightness testing result.

Description

Vacuum pump gas tightness check out test set

Technical Field

The application relates to the field of vacuum pumps, in particular to vacuum pump air tightness detection equipment.

Background

In the assembling process of vacuum pump, install the spare part in the pump body and the pump cover, just need carry out the gas tightness to the vacuum pump after having installed the pump body and pump cover and detect, it detects to adopt the gas tightness detection machine usually to refer to correlation technique, but the gas tightness detection machine on the market is generally expensive, and detection cost is higher, therefore, this kind of gas tightness detection mode is not generally applicable to small-scale production factory, vacuum pump gas tightness check out test set is in the testing process, can appear removing when infusing gas, thereby cause the vacuum pump instability, need effectively stabilize, otherwise can influence the accuracy of gas tightness testing result.

How to invent a vacuum pump airtightness detection device to improve these problems becomes a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In order to compensate for the defects, the application provides vacuum pump air tightness detection equipment, and aims to improve the problem that the vacuum pump is easy to move when gas is injected.

The embodiment of the application provides a vacuum pump gas tightness check out test set, including detection mechanism and moving mechanism.

The detection mechanism comprises a support, a first support plate, a detection box and an inflation assembly, the number of the first support plate is two, the two first support plates are connected to one side of the support, the detection box is installed at one side of the support, the inflation assembly is connected to one side of the detection box, the moving mechanism comprises a motor, a threaded rod, a sliding assembly, a first hydraulic cylinder, a clamping assembly, a jacking assembly, an elastic assembly and a vacuum pump body, the motor is connected to one side of the first support plate, the threaded rod is installed at the motor output shaft, the threaded rod penetrates through the sliding assembly, the first hydraulic cylinder is connected to one side of the sliding assembly, the clamping assembly is installed at the first hydraulic cylinder output shaft, the jacking assembly and the elastic assembly are connected to the inner side of the clamping assembly, and the vacuum pump body, and the elastic component is positioned among the jacking component, the clamping component and the elastic component.

In the above-mentioned realization process, the detection case is used for holding detection oil, inflation assembly is used for aerifing the vacuum pump body, the cooperation detects the gas tightness that oil detected the vacuum pump body, the motor passes through the threaded rod and drives the slip subassembly and remove, it removes to drive the vacuum pump body and removes, make the vacuum pump body remove the top department that detects the position from placing the position, the centre gripping subassembly, tight subassembly in top and elastic component are used for pressing from both sides tight vacuum pump body, make the vacuum pump body difficult production when aerifing rock, first pneumatic cylinder is used for removing the detection position with the vacuum pump body.

In a specific embodiment, the inflation assembly includes air pump, flexible pipe, connector and the lantern ring, the air pump connect in detection case one side, the air pump is given vent to anger the end and is passed through flexible pipe with the connector intercommunication, the lantern ring install in detection case one end, the lantern ring cup joint in flexible pipe surface, the connector with vacuum pump body air inlet phase-match.

In the implementation process, the connector is used for being connected with an air inlet of the vacuum pump body in a sealing mode, the air pump is used for transporting outside air to the vacuum pump body through the telescopic pipe, the air tightness of the vacuum pump body is detected, and the lantern ring is used for limiting the telescopic pipe.

In a specific implementation scheme, the sliding assembly comprises a sliding block, a sliding rail and a limiting rod, wherein a threaded hole is formed in the inner surface of the sliding block, the threaded hole penetrates through the threaded hole, the first hydraulic cylinder is connected to one side of the sliding block, the sliding rail is installed on the other side of the sliding block, and the limiting rod is connected to one end of the sliding rail.

In the implementation process, the threaded rod drives the sliding block to move left and right through the threaded hole and the sliding rail, and the limiting rod is used for supporting the sliding block through the sliding rail, so that the stability of the sliding block in the left and right moving process is improved.

In a specific implementation scheme, one end of the first supporting plate is fixedly connected with a second supporting plate, a sliding opening is formed in the inner surface of the second supporting plate, the sliding rail is connected to the sliding opening in a sliding mode, and the limiting rod cannot pass through the sliding opening.

In the implementation process, the sliding opening is used for limiting the limiting rod, so that the sliding block can move left and right along with the rotation of the threaded rod.

In a specific embodiment, the clamping assembly comprises a bracket, the bracket is of a U-shaped structure, and the bracket is connected to the first hydraulic cylinder output shaft.

In a specific implementation scheme, the jacking assembly comprises a second hydraulic cylinder, a support plate, a jacking block and a first baffle, the second hydraulic cylinder is connected to the inner side of the support, the support plate is mounted on the output shaft of the second hydraulic cylinder, the jacking block and the first baffle are connected to one side of the support plate, the jacking block and the first baffle are respectively attached to the outer side of the vacuum pump body, one end of the first baffle is of an inclined structure, a second groove is formed in the inner side of the support, and the first baffle is in clearance fit with the second groove.

In the implementation process, the second hydraulic cylinder is used for driving the upper and lower jacking blocks and the first baffle to move left and right through the support plate, so that the vacuum pump body can be clamped in the horizontal direction conveniently by matching with the support.

In a specific implementation scheme, the elastic assembly comprises a spring, a second baffle plate and a guide rail, two ends of the spring are connected with the support and the second baffle plate, a guide groove is formed in the inner side of the support, and the guide rail is inserted into the guide groove.

In the above-mentioned realization process, the elasticity of spring passes through second baffle and first baffle and presss from both sides tight vacuum pump body in vertical direction, improves vacuum pump body's stability, and the guide rail is used for making the difficult skew of spring.

In a specific embodiment, the moving mechanism further comprises a reinforcing rod, and two ends of the reinforcing rod are connected with the bracket and the first hydraulic cylinder.

In the implementation process, the reinforcing rod is used for improving the connection strength between the support and the first hydraulic cylinder, so that the joint of the support and the first hydraulic cylinder is not easy to break.

In a specific embodiment, a placing plate is fixedly connected to one side of the first supporting plate, a first groove is formed in one side of the placing plate, and one end of the support is in clearance fit with the first groove.

In the above implementation process, the placing plate is used for placing the vacuum pump body.

In a specific embodiment, the detection mechanism further comprises a valve, and the valve is communicated with one side of the detection box.

In the implementation process, the valve is used for conveniently discharging the detection oil in the detection box by people.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic structural diagram of a vacuum pump airtightness detection apparatus provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a detection mechanism according to an embodiment of the present disclosure;

FIG. 3 is a schematic illustration of an inflator assembly according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a moving mechanism provided in an embodiment of the present application;

FIG. 5 is a schematic structural view of a slide assembly according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a clamping assembly according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a tightening assembly according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of an elastic component according to an embodiment of the present disclosure.

In the figure: 10-a detection mechanism; 110-a support; 120-a first support plate; 130-a detection box; 140-an inflation assembly; 141-an air pump; 142-a bellows; 143-a connector; 144-a collar; 150-a valve; 160-placing the plate; 170-a first recess; 180-a second support plate; 190-sliding port; 20-a moving mechanism; 210-a motor; 220-a threaded rod; 230-a sliding assembly; 231-a slider; 232-a slide rail; 233-a limit rod; 234-threaded hole; 240-a first hydraulic cylinder; 250-a clamping assembly; 251-a bracket; 252-a guide groove; 253-a second groove; 260-a tightening assembly; 261-a second hydraulic cylinder; 262-a support plate; 263-top block; 264-a first baffle; 270-a resilient component; 271-a spring; 272-a second baffle; 273-guide rail; 280-a vacuum pump body; 290-reinforcing bars.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, the present application provides an apparatus for detecting airtightness of a vacuum pump, which includes a detecting mechanism 10 and a moving mechanism 20.

Wherein, moving mechanism 20 fixed connection is on detection mechanism 10, and detection mechanism 10 is used for detecting the airtight of vacuum pump, and moving mechanism 20 is used for pressing from both sides tight vacuum pump, moves the vacuum pump from placing the position to the detection position to difficult production is being detected and is rocking, and convenient the detection improves the accuracy of testing result.

Referring to fig. 1 and 2, the detecting mechanism 10 includes a support 110, first support plates 120, a detecting box 130 and an inflating assembly 140, the number of the first support plates 120 is two, the two first support plates 120 are connected to one side of the support 110, specifically, the two first support plates 120 are connected to one side of the support 110 by welding, the detecting box 130 is installed to one side of the support 110, specifically, the detecting box 130 is installed to one side of the support 110 by welding, the inflating assembly 140 is connected to one side of the detecting box 130, the detecting box 130 is used for containing detecting oil, the inflating assembly 140 is used for inflating the vacuum pump, and the air tightness of the vacuum pump is detected by matching the detecting oil.

In some embodiments, the detection mechanism 10 further comprises a valve 150, the valve 150 is connected to one side of the detection box 130, and the valve 150 is used for people to conveniently drain the detection oil in the detection box 130.

Referring to fig. 2 and 3, the inflation assembly 140 includes an air pump 141, an extension tube 142, a connector 143, and a collar 144, the air pump 141 is connected to one side of the detection box 130, specifically, the air pump 141 is fixedly connected to one side of the detection box 130 by screws, an air outlet end of the air pump 141 is communicated with the connector 143 by the extension tube 142, the collar 144 is installed at one end of the detection box 130, specifically, the collar 144 is fixedly installed at one end of the detection box 130 by welding, the collar 144 is sleeved on an outer surface of the extension tube 142, the connector 143 is matched with an air inlet of the vacuum pump body 280, the connector 143 is used for being hermetically connected with the air inlet of the vacuum pump body 280, the air pump 141 is used for transporting outside air to the vacuum pump body 280 through the extension tube 142, detecting the air tightness of the vacuum pump body 280, and the collar 144 is used for limiting the extension tube 142.

Referring to fig. 1, 2 and 4, the moving mechanism 20 includes a motor 210, a threaded rod 220, a sliding assembly 230, a first hydraulic cylinder 240, a clamping assembly 250, a tightening assembly 260, an elastic assembly 270 and a vacuum pump body 280, the motor 210 is connected to one side of the first support plate 120, specifically, the motor 210 is fixedly connected to one side of the first support plate 120 through screws, the threaded rod 220 is installed on an output shaft of the motor 210, specifically, the threaded rod 220 is fixedly installed on the output shaft of the motor 210 through welding, threads of the threaded rod 220 penetrate through the sliding assembly 230, the first hydraulic cylinder 240 is connected to one side of the sliding assembly 230, the clamping assembly 250 is installed on an output shaft of the first hydraulic cylinder 240, the tightening assembly 260 and the elastic assembly 270 are connected to the inner side of the clamping assembly 250, the vacuum pump body 280 is located between the tightening assembly 260, the elastic assembly 270 and the clamping assembly 250, the motor 210 drives the sliding assembly 230 to move left and right through the threaded rod 220, the vacuum pump body 280 is driven to move left and right, the vacuum pump body 280 is moved to the position above the detection position from the placement position, the clamping assembly 250, the jacking assembly 260 and the elastic assembly 270 are used for clamping the vacuum pump body 280, the vacuum pump body 280 is not prone to shaking during inflation, and the first hydraulic cylinder 240 is used for moving the vacuum pump body 280 to the detection position.

Referring to fig. 2, 4 and 5, the sliding assembly 230 includes a sliding block 231, a sliding rail 232 and a limiting rod 233, a threaded hole 234 is formed in an inner surface of the sliding block 231, the threaded hole 234 penetrates through the threaded hole 234, the first hydraulic cylinder 240 is connected to one side of the sliding block 231, specifically, the first hydraulic cylinder 240 is fixedly connected to one side of the sliding block 231 through a screw, the sliding rail 232 is installed at the other side of the sliding block 231, specifically, the sliding rail 232 is installed at the other side of the sliding block 231 through welding, the limiting rod 233 is connected to one end of the sliding rail 232, specifically, the limiting rod 233 is fixedly connected to one end of the sliding rail 232 through welding, the threaded rod 220 drives the sliding block 231 to move left and right through the threaded hole 234 and the sliding rail 232, the limiting rod 233 is used for supporting the sliding block 231 through the sliding rail 232, and stability of the sliding block 231 in the moving left and right process is improved.

In some specific embodiments, one end of the first support plate 120 is fixedly connected with the second support plate 180, specifically, one end of the first support plate 120 is fixedly connected with the second support plate 180 by welding, a sliding opening 190 is formed in the inner surface of the second support plate 180, the sliding rail 232 is slidably connected to the sliding opening 190, the limiting rod 233 cannot pass through the sliding opening 190, and the sliding opening 190 is used for limiting the limiting rod 233, so that the sliding block 231 can move left and right along with the rotation of the threaded rod 220.

Referring to fig. 3, 6 and 7, the clamping assembly 250 includes a bracket 251, the bracket 251 is of a U-shaped structure, the bracket 251 is connected to an output shaft of the first hydraulic cylinder 240, specifically, the bracket 251 is fixedly connected to the output shaft of the first hydraulic cylinder 240 by welding, the tightening assembly 260 includes a second hydraulic cylinder 261, a support plate 262, a top block 263 and a first baffle 264, the second hydraulic cylinder 261 is connected to an inner side of the bracket 251, specifically, the second hydraulic cylinder 261 is fixedly connected to an inner side of the bracket 251 by screws, the support plate 262 is mounted to the output shaft of the second hydraulic cylinder 261, specifically, the support plate 262 is fixedly mounted to the output shaft of the second hydraulic cylinder 261 by welding, the top block 263 and the first baffle 264 are connected to one side of the support plate 262, specifically, the top block 263 and the first baffle 264 are fixedly connected to one side of the support plate 262 by welding, the top block 263 and the first baffle 264 are respectively attached to an outer side of the vacuum pump body 280, one end of the first baffle 264 is of an inclined structure, the inner side of the bracket 251 is provided with a second groove 253, the first baffle 264 is in clearance fit with the second groove 253, and the second hydraulic cylinder 261 is used for driving the upper and lower jacking blocks 263 and the first baffle 264 to move left and right through the support plate 262, so that the bracket 251 is matched to clamp the vacuum pump body 280 in the horizontal direction.

Referring to fig. 3, 6 and 8, the elastic assembly 270 includes a spring 271, a second baffle 272 and a guide rail 273, two ends of the spring 271 are connected to the bracket 251 and the second baffle 272, specifically, two ends of the spring 271 are fixedly connected to the bracket 251 and the second baffle 272 by welding, the inner side of the bracket 251 is provided with a guide groove 252, the guide rail 273 is inserted into the guide groove 252, the elastic force of the spring 271 clamps the vacuum pump body 280 in the vertical direction through the second baffle 272 and the first baffle 264, so as to improve the stability of the vacuum pump body 280, and the guide rail 273 is used to make the spring 271 not easily deviate.

In some specific embodiments, the moving mechanism 20 further includes a reinforcing rod 290, two ends of the reinforcing rod 290 are connected to the bracket 251 and the first hydraulic cylinder 240, specifically, two ends of the reinforcing rod 290 are fixedly connected to the bracket 251 and the first hydraulic cylinder 240 by welding, a placing plate 160 is fixedly connected to one side of the first support plate 120, specifically, the placing plate 160 is fixedly connected to one side of the first support plate 120 by welding, a first groove 170 is formed in one side of the placing plate 160, one end of the bracket 251 is in clearance fit with the first groove 170, the reinforcing rod 290 is configured to improve the connection strength between the bracket 251 and the first hydraulic cylinder 240, so that the connection between the bracket 251 and the first hydraulic cylinder 240 is not easily broken, and the placing plate 160 is configured to place the vacuum pump body 280.

The working principle of the device is as follows: one places the vacuum pump body 280 on the placing board 160, turns on the motor 210 through the external controller, and makes the motor 210 rotate clockwise, the motor 210 will drive the threaded rod 220 to rotate clockwise, the threaded rod 220 will drive the sliding block 231 to move right through the threaded hole 234, the sliding block 231 will drive the bracket 251 to move right through the first hydraulic cylinder 240, and make the bracket 251 move right above the vacuum pump body 280, then the external controller controls the first hydraulic cylinder 240 to extend downwards, the first hydraulic cylinder 240 will drive the bracket 251 to move downwards, so that one end of the bracket 251 is inserted into the first groove 170, then the external controller controls the second hydraulic cylinder 261 to extend right, the second hydraulic cylinder 261 will drive the top block 263 and the first baffle 264 to move right through the support plate 262, the top block 263 and the right side inside the bracket 251 clamp the vacuum pump body 280 in the horizontal direction, the first baffle 264 will be inserted into the bottom of the vacuum pump body 280, and the vacuum pump body 280 is supported, the elastic force of the spring 271 drives the second baffle 272 to move up and down, the second baffle 272 and the first baffle 264 clamp the vacuum pump body 280 in the vertical direction, so that the vacuum pump body 280 is not easy to shake, after clamping, the motor 210 rotates counterclockwise through the external controller, the motor 210 drives the threaded rod 220 to rotate counterclockwise, the threaded rod 220 drives the sliding block 231 to move leftward through the threaded hole 234, the sliding block 231 drives the bracket 251 to move leftward through the first hydraulic cylinder 240, the bracket 251 drives the vacuum pump body 280 to move leftward, and the vacuum pump body 280 moves right above the detection box 130, at this time, the external controller controls the first hydraulic cylinder 240 to extend downward, the first hydraulic cylinder 240 drives the vacuum pump body 280 to move downward through the bracket 251, when the vacuum pump body 280 contacts with the detection oil in the detection box 130, the connector 143 is connected to the air inlet of the vacuum pump body 280, vacuum pump body 280 continues to move downwards, when detecting that oil submerges vacuum pump body 280 completely, make first pneumatic cylinder 240 stop downwardly extending, and open air pump 141, air pump 141 can transport external air to vacuum pump body 280 through flexible pipe 142 and connector 143 in, vacuum pump body 280 centre gripping is tighter during inflation, it produces whether there is the bubble to observe the interior detection oil of detection case 130, judge whether vacuum pump body 280 leaks gas, thereby reached the difficult mesh that removes that appears of vacuum pump when the injected gas, press from both sides the vacuum pump through the clamping structure, make vacuum pump gas tightness check out test set at the testing process, difficult the removal that appears when the injected gas, make the vacuum pump stable, good stability, improve the accuracy of gas tightness check out test result.

It should be noted that the specific model specifications of the external controller, the air pump 141, the extension tube 142, the connector 143, the valve 150, the motor 210, the threaded rod 220, the first hydraulic cylinder 240, the second hydraulic cylinder 261, the spring 271 and the vacuum pump body 280 need to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, and therefore details are not repeated.

The power supply and the principle of the external controller, the air pump 141, the motor 210, the first hydraulic cylinder 240, the second hydraulic cylinder 261, and the vacuum pump body 280 will be apparent to those skilled in the art, and will not be described in detail herein.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A vacuum pump airtightness detection apparatus is characterized by comprising

The detection mechanism (10) comprises a support (110), two first support plates (120), a detection box (130) and an inflation assembly (140), wherein the two first support plates (120) are arranged, the two first support plates (120) are connected to one side of the support (110), the detection box (130) is installed on one side of the support (110), and the inflation assembly (140) is connected to one side of the detection box (130);

the moving mechanism (20) comprises a motor (210), a threaded rod (220), a sliding assembly (230), a first hydraulic cylinder (240), a clamping assembly (250), a jacking assembly (260), an elastic assembly (270) and a vacuum pump body (280), wherein the motor (210) is connected to one side of the first supporting plate (120), the threaded rod (220) is installed on an output shaft of the motor (210), the threaded rod (220) penetrates through the sliding assembly (230) in a threaded manner, the first hydraulic cylinder (240) is connected to one side of the sliding assembly (230), the clamping assembly (250) is installed on the output shaft of the first hydraulic cylinder (240), the jacking assembly (260) and the elastic assembly (270) are connected to the inner side of the clamping assembly (250), and the vacuum pump body (280) is located between the jacking assembly (260) and the vacuum pump body (280), The elastic component (270) and the clamping component (250).

2. The vacuum pump airtightness detection apparatus according to claim 1, wherein the inflation assembly (140) comprises an air pump (141), a telescopic tube (142), a connector (143), and a collar (144), the air pump (141) is connected to one side of the detection box (130), an air outlet end of the air pump (141) is communicated with the connector (143) through the telescopic tube (142), the collar (144) is installed at one end of the detection box (130), the collar (144) is sleeved on an outer surface of the telescopic tube (142), and the connector (143) is matched with an air inlet of the vacuum pump body (280).

3. The vacuum pump airtightness detection apparatus according to claim 1, wherein the sliding assembly (230) comprises a sliding block (231), a sliding rail (232) and a limiting rod (233), a threaded hole (234) is formed in an inner surface of the sliding block (231), the threaded hole (234) is threaded through the threaded hole (234), the first hydraulic cylinder (240) is connected to one side of the sliding block (231), the sliding rail (232) is mounted to the other side of the sliding block (231), and the limiting rod (233) is connected to one end of the sliding rail (232).

4. The vacuum pump airtightness detection apparatus according to claim 3, wherein a second support plate (180) is fixedly connected to one end of the first support plate (120), a sliding opening (190) is formed in an inner surface of the second support plate (180), the slide rail (232) is slidably connected to the sliding opening (190), and the limit rod (233) cannot pass through the sliding opening (190).

5. A vacuum pump airtightness detection apparatus according to claim 1, wherein the clamping assembly (250) includes a bracket (251), the bracket (251) has a U-shaped structure, and the bracket (251) is connected to the output shaft of the first hydraulic cylinder (240).

6. The vacuum pump airtightness detection apparatus according to claim 5, wherein the tightening assembly (260) includes a second hydraulic cylinder (261), a support plate (262), a top block (263) and a first baffle (264), the second hydraulic cylinder (261) is connected to an inner side of the support (251), the support plate (262) is installed on an output shaft of the second hydraulic cylinder (261), the top block (263) and the first baffle (264) are connected to one side of the support plate (262), the top block (263) and the first baffle (264) are respectively attached to an outer side of the vacuum pump body (280), one end of the first baffle (264) is an inclined structure, a second groove (253) is formed in an inner side of the support (251), and the first baffle (264) is in clearance fit with the second groove (253).

7. The vacuum pump airtightness detection apparatus according to claim 5, wherein the elastic member (270) comprises a spring (271), a second baffle (272) and a guide rail (273), two ends of the spring (271) are connected to the bracket (251) and the second baffle (272), a guide groove (252) is formed in the inner side of the bracket (251), and the guide rail (273) is inserted into the guide groove (252).

8. A vacuum pump airtightness detection apparatus according to claim 5, wherein the moving mechanism (20) further comprises a reinforcing rod (290), and both ends of the reinforcing rod (290) are connected to the bracket (251) and the first hydraulic cylinder (240).

9. The vacuum pump airtightness detection apparatus according to claim 5, wherein a placement plate (160) is fixedly connected to one side of the first support plate (120), a first groove (170) is formed in one side of the placement plate (160), and one end of the bracket (251) is in clearance fit with the first groove (170).

10. A vacuum pump airtightness detection apparatus according to claim 1, wherein the detection mechanism (10) further includes a valve (150), and the valve (150) is communicated with one side of the detection box (130).