CN210625950U

CN210625950U - Sealing tester

Info

Publication number: CN210625950U
Application number: CN201921961297.2U
Authority: CN
Inventors: 葛国中
Original assignee: Dongguan Aoruiboke Intelligent Equipment Technology Co Ltd
Current assignee: Dongguan Aoruiboke Intelligent Equipment Technology Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-05-26
Anticipated expiration: 2029-11-13

Abstract

The utility model belongs to the technical field of a sealing tester, in particular to a sealing tester, which comprises a frame, a transparent barrel body and a barrel cover covering the transparent barrel body; an operation panel is embedded at the front end of the base, an air pump is arranged in the base and is connected with the barrel cover through a hose; the sealing tester also comprises two clamping mechanisms which are symmetrically arranged at two sides of the transparent barrel body; the clamping mechanism comprises a guide rod, a mounting seat, a connecting seat and an elastic clamping component; the mounting seat is arranged on one side of the transparent barrel body, a guide rod is vertically arranged on the mounting seat, the connecting seat is connected to the guide rod in a sliding mode, and the connecting seat is fixedly connected with the barrel cover; the upper end of guide bar is installed the elasticity screens subassembly, when the connecting seat shifts up and is located elasticity screens subassembly top along the guide bar, the elasticity screens subassembly with the connecting seat joint to prevent the bung moves down, and the water that adheres to on the bung also can drip back in the transparent barrel, keeps clean and dry of test bench or desktop.

Description

Sealing tester

Technical Field

The utility model belongs to the technical field of sealed tester, especially, relate to a sealed tester.

Background

The sealing tester evacuates the vacuum chamber to generate internal and external pressure difference by negative pressure, observes the external escape of gas in the sample, and judges the sealing performance of the sample: or evacuating the vacuum chamber to generate internal and external pressure difference on the sample, observing the expansion of the sample and the shape recovery of the sample after the vacuum is released, and judging the sealing performance of the sample. The method is generally applied to the sealing performance detection of plastic flexible packaging bags, medicine packaging, daily chemical product packaging and non-gas plastic bottles and barrels.

The existing sealing tester needs to put the opened barrel cover at one place (such as a table top and a test bench) temporarily to take out a test sample in the barrel so as to put another test sample in the barrel for sealing test, however, the barrel is filled with water, and the barrel cover attached with water is put at one place (such as the table top and the test bench) temporarily, so that the water easily wets the test bench, the test bench is wet and unclean, and the workload of wiping the table is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealed tester aims at solving the sealed tester among the prior art, and the bung that has attached to water is put temporarily on the testboard, makes water get wet the testboard easily, leads to the testboard moist and unclean technical problem.

In order to achieve the above object, an embodiment of the present invention provides a sealing tester, which includes a base, a transparent barrel body and a barrel cover covering the transparent barrel body; an operation panel is embedded at the front end of the base, an air pump is arranged in the base and connected with the barrel cover through a hose, and when the barrel cover covers the transparent barrel body, the air pump can vacuumize the transparent barrel body; the sealing tester also comprises two clamping mechanisms, and the two clamping mechanisms are symmetrically arranged on two sides of the transparent barrel body; the barrel cover is also provided with a water splashing prevention device at the hose;

the clamping mechanism comprises a guide rod, a mounting seat, a connecting seat and an elastic clamping component; the mounting seat is arranged on one side of the transparent barrel body, the guide rod is vertically mounted on the mounting seat, the connecting seat is connected to the guide rod in a sliding mode, and the connecting seat is fixedly connected with the barrel cover; the upper end of guide bar is installed elasticity screens subassembly the connecting seat is followed the guide bar moves up and is located when elasticity screens subassembly top, elasticity screens subassembly with the connecting seat joint is in order to prevent the bung moves down.

Optionally, the elastic clamping assembly comprises a connecting pipe, a clamping pin and a spring; the connecting pipe is arranged at the upper end of the guide rod, and a first clamping hole penetrates through the outer wall of the connecting pipe; the clamping pipe is arranged in the connecting pipe, and a second clamping hole corresponding to the first clamping hole penetrates through the outer wall of the clamping pipe; the bayonet lock is slidably arranged in the bayonet lock tube, and a pin of the bayonet lock sequentially penetrates through the second bayonet lock hole and the first bayonet lock hole to extend out of the connecting tube; the spring is arranged in the clamping pipe, and the spring can be elastically pushed or elastically contracted to enable the pin of the clamping pin to extend out of the connecting pipe or contract in the connecting pipe.

Optionally, a first connecting part is convexly arranged at one end of the bayonet lock close to the spring, and a second connecting part is convexly arranged on the inner wall of the bayonet lock; the two ends of the spring are respectively sleeved on the first connecting part and the second connecting part.

Optionally, a limiting piece is arranged at the upper end of the connecting pipe; the limiting piece comprises a limiting part; the lower end of the limiting part extends out of a connecting part, and the lower end of the connecting part is installed at the upper end of the connecting pipe.

Optionally, a base is arranged at the lower end of the transparent barrel body; an accommodating groove is dug at the upper end of the base, and the bottom of the transparent barrel body is accommodated in the accommodating groove in a matching manner.

Optionally, the base is symmetrically provided with a pair of fixing components at two sides of the accommodating groove; the fixing component comprises a fixing seat and a compression screw; the fixed seat is arranged on the base, a threaded hole is formed in the fixed seat, and the compression screw is in threaded connection with the threaded hole; and the compression screw is rotated, so that the screw rod end of the compression screw is abutted against the side wall of the transparent barrel body.

Optionally, the screw end of the hold-down screw is provided with an elastic hold-down block.

Optionally, a pair of slotted holes is vertically arranged on the mounting seat side by side, and at least one fixing screw penetrates through one slotted hole to be in threaded connection with the side portion of the base.

Optionally, a pressure plate is arranged below the barrel cover, and the upper end of the pressure plate is connected with the lower end of the barrel cover through a connecting rod; a plurality of through holes are uniformly formed in the pressing plate.

Optionally, an adjusting seat is arranged at the lower end of the barrel cover, and a nut is arranged at the bottom of the adjusting seat; the connecting rod is a screw rod, the screw rod is in threaded connection with the nut, and an accommodating space for accommodating the screw rod is arranged in the adjusting seat.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the sealed tester have one of following technological effect at least: when the device is used, an operator pulls the barrel cover upwards to move upwards along the guide rod, so that the connecting seat is positioned above the elastic clamping component and is clamped with the elastic clamping component. Opening an upper end opening of the transparent barrel body, adding a proper amount of water into the transparent barrel body, and putting a sample to be tested into the transparent barrel body; the operator pushes the barrel cover downwards, so that the connecting seat is separated from the elastic clamping component and clamped and moves downwards along the guide rod, and the barrel cover is sealed and covers the upper end opening of the transparent barrel body. The air pump vacuumizes the inner part to test the tightness of the sample to be tested; after the test is finished, the air pump balances the air pressure in the transparent barrel; the operator will the bung is followed the guide bar shifts up with elasticity screens subassembly joint once more to people take out test sample, repeat according to this. Therefore, when the barrel cover is opened or closed, the barrel cover is always positioned right above the transparent barrel body, water attached to the barrel cover can also drip back into the transparent barrel body, the test bed or the table top cannot be wetted by the water, the test bed or the table top is kept clean and dry, and the practicability is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a sealing tester provided by an embodiment of the present invention.

Fig. 2 is another schematic state diagram of the sealing tester provided in the embodiment of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 1 according to the present invention.

Fig. 4 is a schematic view of a partial structure of the sealing tester provided by the embodiment of the present invention.

Fig. 5 is an exploded view of a clamping mechanism of the seal tester according to an embodiment of the present invention.

Fig. 6 is a cross-sectional view of a clamping mechanism of the seal tester provided by the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

the sealing device comprises a base 100, an operation panel 110, a hose 120, a sealing piston 130, supporting legs 140, a transparent barrel body 200, an upper end opening 210, a base 220, a containing groove 221, a fixing assembly 230, a fixing seat 231, a compression screw 232, a threaded hole 233, an elastic compression block 234, a handle 235, a sealing ring 240, a barrel cover 300, a pressing plate 310, a through hole 311, a connecting rod 320, an adjusting seat 330, a nut 340, a containing space 350, a clamping mechanism 400, a guide rod 410, a mounting seat 420, a connecting seat 430, a guide sleeve 431, an elastic clamping assembly 440, a connecting pipe 441, a clamping pipe 442, a clamping pin 443, a spring 444, a first clamping hole 445, a second clamping hole 446, a first connecting portion 447, a second connecting portion 448, a limiting member 450, a limiting portion 451 and a connecting.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

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 embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, referring to fig. 1, a sealing tester is provided, which includes a base 100, a transparent barrel 200 and a barrel cover 300 covering the transparent barrel 200.

Referring to fig. 1, an operation panel 110 is embedded in a front end of the base 100, an air pump (not shown) is disposed inside the base 100, the air pump is connected to the tub cover 300 through a hose 120, and when the tub cover 300 covers the transparent tub 200, the air pump can vacuumize the transparent tub 200. Specifically, the air port of the air pump is connected to one end of the hose 120, and the other end of the hose 120 is hermetically connected to the tub cover 300 through a sealing piston 130. It should be understood that the barrel cover 300 is provided with a through hole adapted to the sealing piston 130.

Specifically, a main control board (not shown) is further disposed in the base 100, and the operation panel 110, the air cylinder 410 and the air pump are all electrically connected to the main control board. The key or the switch on the operation panel 110 is triggered to send an electric signal to the main control board, so that the main control board controls the operation of the air cylinder 410 and the air pump. The main control board is mature in the prior art and is commonly used in a sealing tester. The operation panel 110 may be a touch screen or a key, and is set by a person skilled in the art according to actual needs in the mature prior art, which is not limited thereto.

Referring to fig. 1 and 2, the locking mechanism 400 includes a guide rod 410, a mounting seat 420, a connecting seat 430, and an elastic locking assembly 440. The mounting seat 420 is disposed at one side of the transparent barrel body 200, the guide rod 410 is vertically mounted on the mounting seat 420, the connecting seat 430 is slidably connected to the guide rod 410, and the connecting seat 430 is fixedly connected to the barrel cover 300. Install the upper end of guide bar 410 elasticity screens subassembly 440 connection seat 430 is followed guide bar 410 shifts up and is located when elasticity screens subassembly 440 top, elasticity screens subassembly 440 with connection seat 430 joint prevents bung 300 moves down, thereby makes bung 300 fixed hang in guide bar 410 upper portion, so that the operator takes out test sample in the transparent staving 200 or place test sample in the transparent staving 200.

Further, referring to fig. 1 and 2, a guide sleeve 431 is disposed on the connection seat 430, and the guide sleeve 431 is slidably connected to the guide rod 410. The guide sleeve 431 allows the connection holder 430 to be smoothly slidably coupled to the guide bar 410.

Further, referring to fig. 5 and 6, the elastic catching assembly 440 includes a connection pipe 441, a catching pipe 442, a catching pin 443, and a spring 444. The connection pipe 441 is installed at the upper end of the guide rod 410, and preferably, the diameter of the connection pipe 441 is identical to the diameter of the guide rod 410. Specifically, the connecting pipe 441 may be fixedly mounted on the guide rod 410 by clamping, bonding, screwing, or the like. The outer wall of the connecting pipe 441 penetrates through a first clamping hole 445, the clamping pipe 442 is installed in the connecting pipe 441, and the outer wall of the clamping pipe 442 penetrates through a second clamping hole 446 corresponding to the first clamping hole 445. The latch 443 is slidably installed in the latch tube 442, and the pin of the latch 443 sequentially passes through the second latch hole 446 and the first latch hole 445 to protrude out of the connection tube 441. The spring 444 is installed in the bayonet tube 442, and the spring 444 elastically pushes or elastically contracts to extend the pin of the bayonet 443 out of the connection tube 441 or contract the pin of the bayonet 443 in the connection tube 441. When the pin of the pin 443 extends out of the connection pipe 441, the pin of the pin 443 can be engaged with the lower end of the connection seat 430, so that the barrel cover 300 is fixedly suspended on the guide rod 410. When the operator pushes the barrel cover 300 downwards, the connecting seat 430 pushes the pin 443 to compress the spring 444, so that the pin of the pin 443 retracts into the connecting tube 441. At this time, the connection seat 430 is disengaged from the pin of the locking pin 443, and the lid 300 moves down along the guide rod 410 and hermetically covers the upper opening 210 of the transparent barrel body 200.

Further, referring to fig. 5 and 6, the locking pin 443 is protruded with a first coupling portion 447 at an end adjacent to the spring 444, and a second coupling portion 448 is protruded at an inner wall of the locking tube 442. Both ends of the spring 444 are respectively sleeved on the first connecting portion 447 and the second connecting portion 448, so that the spring 444 is stably installed in the bayonet tube 442.

Further, referring to fig. 5 and 6, a stopper 450 is disposed at an upper end of the connecting tube 441. The stopper 450 includes a stopper portion 451. A connecting portion 452 extends from a lower end of the limiting portion 451, and a lower end of the connecting portion 452 is mounted on an upper end of the connecting pipe 441. Specifically, the connecting portion 452 may be fixedly mounted on the connecting tube 441 through clamping, bonding, or screwing. The position is limited by the limit part 451, and the guide sleeve 431 of the connection holder 430 is prevented from being separated from the connection pipe 441, thereby preventing the tub cover 300 from being separated from the connection pipe 441. Preferably, the diameter of the connection portion 452 is identical to that of the connection pipe 441.

The embodiment of the utility model provides an one of following technological effect has among the sealed tester: referring to fig. 1 and 2, in use, an operator pulls the barrel cover 300 upwards to move upwards along the guide rod 410, so that the connecting seat 430 is located above the elastic clamping assembly 440 and is clamped with the elastic clamping assembly 440. An opening 210 at the upper end of the transparent barrel body 200 is opened, a proper amount of water is added into the transparent barrel body 200, and a sample to be tested is placed into the transparent barrel body 200; an operator pushes the barrel cover 300 downwards to separate the connecting seat 430 from being clamped with the elastic clamping assembly 440 and move downwards along the guide rod 410, so that the barrel cover 300 covers the upper end opening 210 of the transparent barrel body 200 in a sealing manner. The air pump vacuumizes the inner part to test the tightness of the sample to be tested; after the test is finished, the air pump balances the air pressure in the transparent barrel body 200; the operator moves the barrel cover 300 up along the guide rod 410 to be clamped with the elastic clamping assembly 440 again, so that the test sample can be taken out by people, and the process is repeated. Therefore, when the barrel cover 300 is opened or closed, the barrel cover 300 is always positioned right above the transparent barrel body 200, water attached to the barrel cover 300 can also drip back into the transparent barrel body 200, the test bed or the table top cannot be wetted by the water, the test bed or the table top can be kept clean and dry, and the practicability is high.

In another embodiment of the present invention, referring to fig. 1 and 3, the lower end of the transparent barrel 200 of the sealing tester is provided with a base 220. An accommodating groove 221 is dug at the upper end of the base 220, and the bottom of the transparent barrel body 200 is accommodated in the accommodating groove 221 in a matching manner, so that the transparent barrel body 200 is stably placed on the base 220.

Further, referring to fig. 1 and 3, the base 220 is symmetrically provided with a pair of fixing members 230 at two sides of the accommodating groove 221. The fixing assembly 230 includes a fixing seat 231 and a compression screw 232. The fixing seat 231 is mounted on the base 220, a threaded hole 233 is formed in the fixing seat 231, and the compression screw 232 is in threaded connection with the threaded hole 233. The compression screw 232 is rotated to enable the screw end of the compression screw 232 to abut against the side wall of the transparent barrel body 200, so that the transparent barrel body 200 is firmly installed on the base 220.

Further, referring to fig. 1 and 3, the screw end of the compression screw 232 is provided with an elastic compression block 234. Preferably, the elastic pressing block 234 is a circular elastic pressing block. When the screw end of the pressing screw 232 is close to the sidewall of the transparent barrel body, the elastic pressing block 234 plays an elastic buffering role, so as to prevent the screw end of the pressing screw 232 from crushing the sidewall of the transparent barrel body 200.

Further, a handle 235 is disposed at a nut end of the compression screw 232, and the handle 235 is convenient for an operator to rotate the compression screw 232.

In another embodiment of the present invention, referring to fig. 1 and 3, a pair of slotted holes 421 are vertically arranged side by side on the mounting seat 420 of the sealing tester, and at least one fixing screw 422 passes through one of the slotted holes 421 and is in threaded connection with the side portion of the base 220. The fixing screw 422 is rotated and loosened, the mounting seat 420 can move up and down, and simultaneously the slotted hole 421 moves up and down relative to the fixing screw 422 to adjust the height of the mounting seat 420, so as to adjust the height of the clamping mechanism 400. After the adjustment is completed, the fixing screw 422 is locked, so that the mounting base 420 is fixed on the base 220.

In another embodiment of the present invention, referring to fig. 2 and 4, a pressing plate 310 is disposed below the barrel cover 300 of the sealing tester, and an upper end of the pressing plate 310 is connected to a lower end of the barrel cover 300 through a connecting rod 320. When the barrel cover 300 covers the transparent barrel body 200, the pressing plate 310 extends into the transparent barrel body 200, and the pressing plate 310 pushes the test sample to be completely soaked in the water in the transparent barrel body 200, so that the test effect of the test sample is ensured. Preferably, the diameter of the pressing plate 310 is adapted to the diameter of the transparent barrel 200.

Further, referring to fig. 2 and 4, an adjusting seat 330 is provided at a lower end of the tub cover 300, and a nut 340 is provided at a bottom of the adjusting seat 330. The connecting rod 320 is a screw rod, the screw rod is in threaded connection with the nut 340, and an accommodating space 350 for accommodating the screw rod is arranged in the adjusting seat 330. The screw rod can move up and down along the nut 340 by rotating the pressing plate 310, so as to adjust the distance between the pressing plate 310 and the barrel cover 300, thereby adjusting the depth of the pressing plate 310 extending into the water in the transparent barrel body 200, and the device is suitable for test samples with different shapes and sizes.

Further, referring to fig. 2 and 4, a plurality of through holes 311 are uniformly formed in the pressing plate 310, and the through holes 311 facilitate water in the transparent barrel body 200 to cover the pressing plate 310, so that a test sample is ensured to be completely immersed in the water in the transparent barrel body 200, and the accuracy of the test is ensured. Preferably, the pressing plate 310 is a transparent pressing plate, so that the state of the test sample can be observed conveniently.

In another embodiment of the present invention, referring to fig. 2, the upper end of the transparent barrel 200 of the sealing tester is provided with a sealing ring 240, and the sealing ring 240 surrounds the upper end opening 210 of the transparent barrel 200. The sealing ring 240 enables the sealing effect between the barrel cover 300 and the transparent barrel body 200 to be better. Specifically, the sealing ring 240 may be fixed to the upper end of the transparent barrel 200 by clamping, bonding, or the like.

Further, referring to fig. 1, a plurality of supporting legs 140 are uniformly disposed at the lower end of the machine base 100, and the supporting legs 140 support the machine base 100 to be stably placed.

Further, referring to fig. 1, a handle 360 is disposed at an upper end of the tub cover 300, and the handle 360 facilitates an operator to open the tub cover 300.

Further, the housing 100 and the operation panel 110 constitute a vacuum sealing performance tester housing. The vacuum sealing performance tester base is mature in the prior art.

Wherein the barrel cover is further provided with a splash-proof device 150 at the hose. The anti-splashing device 150 is a mature prior art, such as an anti-splashing connector commonly used in a cable or a water pipe, and can effectively prevent water in the bucket from being splashed to the hose carelessly to flow into the air pump, thereby protecting the air pump.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, its framework form can be nimble changeable, can derive series of products. But merely as a matter of simple deductions or substitutions, should be considered as belonging to the scope of patent protection of the present invention as determined by the claims submitted.

Claims

1. A sealing tester comprises a machine base, a transparent barrel body and a barrel cover covering the transparent barrel body; an operation panel is embedded at the front end of the base, an air pump is arranged in the base and connected with the barrel cover through a hose, and when the barrel cover covers the transparent barrel body, the air pump can vacuumize the transparent barrel body; the method is characterized in that: the sealing tester also comprises two clamping mechanisms, and the two clamping mechanisms are symmetrically arranged on two sides of the transparent barrel body; the barrel cover is also provided with a water splashing prevention device at the hose;

2. The seal tester of claim 1, wherein: the elastic clamping assembly comprises a connecting pipe, a clamping pin and a spring; the connecting pipe is arranged at the upper end of the guide rod, and a first clamping hole penetrates through the outer wall of the connecting pipe; the clamping pipe is arranged in the connecting pipe, and a second clamping hole corresponding to the first clamping hole penetrates through the outer wall of the clamping pipe; the bayonet lock is slidably arranged in the bayonet lock tube, and a pin of the bayonet lock sequentially penetrates through the second bayonet lock hole and the first bayonet lock hole to extend out of the connecting tube; the spring is arranged in the clamping pipe, and the spring can be elastically pushed or elastically contracted to enable the pin of the clamping pin to extend out of the connecting pipe or contract in the connecting pipe.

3. The seal tester of claim 2, wherein: the bayonet lock is convexly provided with a first connecting part at one end close to the spring, and the inner wall of the bayonet lock is convexly provided with a second connecting part; the two ends of the spring are respectively sleeved on the first connecting part and the second connecting part.

4. The seal tester of claim 3, wherein: the upper end of the connecting pipe is provided with a limiting piece; the limiting piece comprises a limiting part; the lower end of the limiting part extends out of a connecting part, and the lower end of the connecting part is installed at the upper end of the connecting pipe.

5. The seal tester of claim 4, wherein: the lower end of the transparent barrel body is provided with a base; an accommodating groove is dug at the upper end of the base, and the bottom of the transparent barrel body is accommodated in the accommodating groove in a matching manner.

6. The seal tester of claim 5, wherein: the base is symmetrically provided with a pair of fixing components at two sides of the accommodating groove; the fixing component comprises a fixing seat and a compression screw; the fixed seat is arranged on the base, a threaded hole is formed in the fixed seat, and the compression screw is in threaded connection with the threaded hole; and the compression screw is rotated, so that the screw rod end of the compression screw is abutted against the side wall of the transparent barrel body.

7. The seal tester of claim 6, wherein: and an elastic pressing block is arranged at the screw rod end of the pressing screw.

8. The seal tester of claim 7, wherein: a pair of strip-shaped slotted holes is vertically arranged on the mounting seat side by side, and at least one fixing screw penetrates through one strip-shaped slotted hole to be in threaded connection with the side part of the base.

9. The seal tester of claim 8, wherein: a pressure plate is arranged below the barrel cover, and the upper end of the pressure plate is connected with the lower end of the barrel cover through a connecting rod; a plurality of through holes are uniformly formed in the pressing plate.

10. The seal tester of claim 9, wherein: the lower end of the barrel cover is provided with an adjusting seat, and the bottom of the adjusting seat is provided with a nut; the connecting rod is a screw rod, the screw rod is in threaded connection with the nut, and an accommodating space for accommodating the screw rod is arranged in the adjusting seat.