Sealing experiment equipment

Abstract

The utility model discloses sealing experiment equipment which comprises a machine body, a sealing barrel and a sealing cover, a plurality of fixing rods are installed on the lower end face of the sealing cover, a spring and a connecting sleeve are connected to the fixing rods in a sleeved mode, a locking piece is arranged on the connecting sleeve, a connecting ring and a check block are fixedly connected to the connecting sleeve, and the check block is fixedly connected with the machine body. A lifting assembly is installed below the check block, a pressing disc is installed between the lifting assembly and the check block, a fixing ring is fixedly connected to the lower end face of the sealing cover, one end of the spring is fixedly connected to the fixing ring, the other end of the spring is fixedly connected to the connecting sleeve, and the connecting sleeve can slide up and down along the fixing rod. Compared with the prior art, the utility model has the beneficial effects that the height of the pressure plate in the sealing barrel can be adjusted up and down, the height of the pressure plate and the height of the water level can be reduced when a test sample which is easy to expand or has a large volume due to collision expansion is tested, and the water level is prevented from rising and being pumped into an instrument while the water level is ensured to be observed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of experimental equipment, and particularly relates to a sealed experimental equipment. BACKGROUND

[0002] The sealed experimental equipment is a kind of instrument for determining the sealing performance of test sample by vacuumizing vacuum chamber, making the test sample immersed in water generate internal and external pressure difference, observing the gas escape or water infiltration of test sample in vacuum chamber.

[0003] Common sealed experimental equipment immerses test sample into water by fixedly connected pressure disc, after test sample is installed, the water level in vacuum chamber should be higher than the position of pressure disc by 1-2 centimeters, and the water level is low, so that it is not easy to observe bubble generation in test, and the water level is high, so that the water level rises rapidly in the vacuumizing process due to the expansion volume increase of test sample, which is easy to cause some water to be sucked into instrument interior, causing damage to main machine.

[0004] When testing test sample prone to expansion or having larger expansion volume, it is easy to cause the risk of water being sucked into instrument due to the rapid water level rise caused by high water level easy to observe, which causes inconvenience in use. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a sealed experimental equipment to solve the above problems.

[0006] In order to realize the above purpose, the utility model provides a sealed experimental equipment, which comprises a machine body, a sealed barrel and a sealing cover, the lower end surface of the sealing cover is provided with a plurality of fixed rods, a spring and a connecting sleeve are sleeved on the plurality of fixed rods, a locking piece is arranged on the connecting sleeve, a connecting ring and a stop block are fixedly connected on the connecting sleeve, a lifting assembly is arranged below the stop block, and a pressure disc is arranged between the lifting assembly and the stop block.

[0007] In one or more embodiments of the utility model, the lower end surface of the sealing cover is fixedly connected with a fixed ring, one end of the spring is fixedly connected on the fixed ring, and the other end is fixedly connected on the connecting sleeve.

[0008] In one or more embodiments of the utility model, the connecting sleeve can slide up and down along the fixed rod.

[0009] In one or more embodiments of the utility model, the spring is a tensile spring.

[0010] In one or more embodiments of the utility model, the pressure disc is provided with a through hole and a connecting hole matched with the lifting assembly.

[0011] In one or more embodiments of the utility model, the lifting assembly includes a collar and a pair of clamping blocks fixedly connected to the collar, the collar is sleeved on the connecting sleeve, and the pair of clamping blocks are matched with the connecting holes.

[0012] In one or more embodiments of the utility model, the locking piece includes a fastening nut, one end of a bolt on the fastening nut penetrates through the connecting sleeve, and the locking piece is matched with the fixed rod.

[0013] In one or more embodiments of the utility model, the fixed rod is provided with a thread, and the fixed rod is threadedly connected with the sealing cover.

[0014] In one or more embodiments of the utility model, the connecting ring is annular, and upper end faces of the plurality of connecting sleeves fixedly connected to the connecting ring are located on the same plane.

[0015] In one or more embodiments of the utility model, the outer diameter of the collar is the same as the outer diameter of the connecting sleeve, and the collar is matched with the connecting hole.

[0016] Compared with the prior art, the utility model has the beneficial effects that the pressure plate in the sealed barrel can be adjusted in height, when testing a test sample which is easy to expand or has a large expansion volume, the height of the pressure plate and the height of the water level can be reduced, the water level can be prevented from being drawn into the instrument while ensuring observation of the water level. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure diagram of a sealed experiment equipment in an embodiment of the utility model;

[0018] Figure 2 It is a first internal structure diagram of a sealed experiment equipment in an embodiment of the utility model;

[0019] Figure 3 It is a second internal structure diagram of a sealed experiment equipment in an embodiment of the utility model;

[0020] Figure 4 It is an explosion view of a sealed experiment equipment in an embodiment of the utility model;

[0021] Figure 5 It is a sectional view of a sealed experiment equipment in an embodiment of the utility model.

[0022] MAIN REFERENCE NUMERALS EXPLANATION:

[0023] 1-body, 2-sealing barrel, 3-sealing cover, 301-cover handle, 302-air inlet, 4-fixing rod, 401-spring, 402-fixing ring, 5-connection sleeve, 501-connection ring, 502-stop block, 503-sleeve ring, 5031-clamping block, 504-fastening nut, 6-pressing plate, 601-through hole, 602-connection hole. DETAILED DESCRIPTION

[0024] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of protection of the present application is not limited by the specific embodiments.

[0025] Reference Figures 1-2 As shown in the figure, a sealing experiment equipment, including body 1, sealing barrel 2 and sealing cover 3, body 1 is provided with switch, pressure regulating valve and pressure gauge, the sealing equipment can be started and stopped by using the switch, and the pressure parameter in the sealing barrel during the experiment can be controlled by adjusting the pressure regulating valve, and the pressure parameter is displayed on the pressure gauge in real time. The sealing barrel 2 is made of organic glass material, the transparent material can facilitate the observation of the bubbles generated in the internal test, the sealing cover 3 is also made of organic glass material, a sealing ring is arranged between the sealing cover 3 and the sealing barrel 2, which ensures the sealing effect of the sealing barrel 2 during vacuumizing in the sealing barrel 2. The upper end surface of the sealing cover 3 is provided with cover handle 301 and air inlet 302, the cover handle 301 is used for holding the sealing cover 3 to open and close, the air inlet 302 is connected with the air inlet pipe, one end of the air inlet pipe is connected with the compressed air source, and the other end is connected with the quick connector on the sealing cover 3 and the vacuum output socket at the back of the body 1.

[0026] Reference Figures 2-3 As shown in the figure, a sealing cover 3 is installed on the lower end surface of the sealing cover 3, a plurality of fixing rods 4 are arranged on the lower end surface of the sealing cover 3, the fixing rods 4 are provided with threads, the fixing rods 4 are connected with the sealing cover 3 in a threaded manner, the fixing rods 4 are made of organic glass or acrylic material, the fixing rods 4 are sleeved with connection sleeves 5, and the connection sleeves 5 can slide up and down along the fixing rods 4. The fixing ring 402 is fixedly connected to the lower end surface of the sealing cover 3, one end of the spring 401 is fixedly connected to the fixing ring 402, and the other end is fixedly connected to the connection sleeve 5, and the spring 401 is a tensile spring. When a downward pulling force is applied to the connection sleeve 5, the connection sleeve 5 moves downward along the fixing rod 4, the connection sleeve 5 pulls open the spring 401, and the spring 401 gives the connection sleeve 5 an upward pulling force, and when the downward pulling force applied to the connection sleeve 5 is stopped, the connection sleeve 5 is reset upward under the action of the spring 401.

[0027] The connecting sleeve 5 is fixedly connected with a connecting ring 501, the connecting ring 501 is annular, the connecting ring 501 synchronously fixes the plurality of connecting sleeves 5 thereon, the upper end faces of the plurality of connecting sleeves 5 fixedly connected on the connecting ring 501 are in the same plane, that is, the connecting ring 501 makes the plurality of connecting sleeves 5 keep synchronous in movement, that is, makes the plurality of connecting sleeves 5 synchronously move up and down along the direction of the fixed rod 4.

[0028] Referring to Figures 3-4 As shown, the connecting sleeve 5 is provided with a locking piece, the locking piece is used for fixing the connecting sleeve 5 moving up and down relative to the fixed rod 4, the locking piece comprises a fastening nut 504, one end of a bolt on the fastening nut 504 penetrates the connecting sleeve 5, and the locking piece cooperates with the fixed rod 4. When it is needed to fix the position of the connecting sleeve 5 relative to the fixed rod 4, the fastening nut 504 is tightened, and when it is needed to move the connecting sleeve 5, the fastening nut 504 can be loosened, and at this time, the connecting sleeve 5 can be moved up and down. Under the action of the connecting ring 501 fixedly connected on the connecting sleeve 5, the plurality of connecting sleeves 5 can be synchronously fixed by using the fastening nut 504.

[0029] A lifting assembly is installed below the stop block 502, and a pressure plate 6 is installed between the lifting assembly and the stop block 502. The pressure plate 6 is provided with a through hole 601 and a connecting hole 602 cooperating with the lifting assembly. The through hole 601 is used for allowing water to pass through the pressure plate 6 in the process of pressing down. The lifting assembly comprises a sleeve ring 503 and a pair of clamping blocks 5031 fixedly connected on the sleeve ring 503. The sleeve ring 503 is sleeved on the connecting sleeve 5 and can rotate around the connecting sleeve 5. The outer diameter of the sleeve ring 503 is the same as the outer diameter of the connecting sleeve 5. The pair of clamping blocks 5031 cooperates with the sleeve ring 503 and the connecting hole 602.

[0030] Referring to Figures 3-4 As shown, when the pressure plate 6 is installed, the sleeve ring 503 on the connecting sleeve 5 can be rotated to the same orientation as the connecting hole 602 on the pressure plate 6, and then the sleeve ring 503 penetrates the connecting hole 602, and the pressure plate 6 is installed upward on the connecting sleeve 5. The pressure plate 6 is pushed upward until the pressure plate 6 contacts the stop block 502 fixedly connected on the connecting sleeve 5, that is, reaches the installation position, and then the sleeve ring 503 located below the pressure plate 6 is rotated so that the orientation of the sleeve ring 503 and the connecting hole 602 is inconsistent. The clamping blocks 5031 on the sleeve ring 503 limit the pressure plate 6, and at this time, the pressure plate 6 is fixed by the cooperation of the stop block 502 above the pressure plate 6 and the sleeve ring 503 below the pressure plate 6. If it is needed to disassemble the pressure plate 6, the sleeve ring 503 below the pressure plate 6 is only needed to be rotated to the same orientation as the connecting hole 602 on the pressure plate 6, and then the pressure plate 6 can be disassembled.

[0031] In specific use, the test sample can be placed in the sealed barrel 2, water is added until the water level reaches above the pressure plate 6 and reaches 1-2 cm above the pressure plate 6, and the sealing cover 3 is tightly covered, the switch on the machine body 1 is opened and the pressure regulating valve is rotated to adjust to a suitable pressure, and it is observed whether there are continuous bubbles from the test sample, and after the test is completed, the sealed barrel 2 is decompressed, then the sealing cover 3 is opened to take out the test sample, and the next group of test samples are placed.

[0032] When testing the test sample which is easy to expand or has a large expansion volume, before the sealing cover 3 is covered, the connecting sleeve 5 can be manually dragged along the fixed rod 4 to move to a suitable position, then the fastening nut 504 is tightened to fix the connecting sleeve 5, and the water level in the sealed barrel 2 is appropriately lowered, so that the observation water level is maintained at 1-2 cm above the pressure plate 6. After the pressure plate 6 is lowered, the observation water level above the pressure plate 6 can also be appropriately raised to be more than 2 cm, the lowered pressure plate 6 and the water level are sufficient to accommodate the expansion of the test sample, and the observation effect can be improved by appropriately raising the observation water level above the pressure plate 6, and the water level will not be too high. When it is necessary to restore the pressure plate 6 to the normal state, the fastening nut 504 can be manually loosened, and the connecting sleeve 5 is reset under the action of the fixed rod 4, and the lower pressure plate 6 is lifted upward.

[0033] When the pressure plate 6 is installed, the sleeve ring 503 is rotated so that the upper clamping block 5031 and the connecting hole 602 on the pressure plate 6 are in the same direction, then the pressure plate 6 is lifted upward until the stop block 502 is contacted, and the sleeve ring 503 is rotated so that the upper clamping block 5031 and the connecting hole 602 are in different directions, at this time the pressure plate 6 is fixed between the stop block 502 and the sleeve ring 503. When it is necessary to disassemble and replace the pressure plate 6, the sleeve ring 503 is only needed to be rotated so that the upper clamping block 5031 and the connecting hole 602 on the pressure plate 6 are in the same direction, and the pressure plate 6 can be disassembled to realize quick disassembly of the pressure plate 6.

[0034] Compared with the prior art, the pressure plate in the sealed barrel can be adjusted in height, the height of the pressure plate and the water level can be lowered when testing the test sample which is easy to expand or has a large expansion volume, and the observation water level is ensured while avoiding the water level rising into the instrument.

[0035] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0036] Furthermore, it should be understood that although the specification is described in terms of embodiments, the specification is not to be limited to only these described embodiments. The specification is intended to include each individual embodiment as a separate embodiment as well as any combination of individual embodiments.

Claims

1. A sealing experimental device, comprising a body, a sealing container, and a sealing cap, characterized in that, A plurality of fixing rods are installed on the lower end face of the sealing cover. A spring and a connecting sleeve are sleeved on the plurality of fixing rods. A locking element is provided on the connecting sleeve. A connecting ring and a stop block are fixedly connected to the connecting sleeve. A lifting assembly is installed below the stop block. A pressure plate is installed between the lifting assembly and the stop block. The pressure plate has through holes and connection holes that mate with the lifting assembly; The lifting assembly includes a collar and a pair of locking blocks fixedly connected to the collar. The collar is sleeved on a connecting sleeve, and the pair of locking blocks cooperate with a connecting hole.

2. The sealing test apparatus according to claim 1, characterized in that, A fixing ring is fixedly connected to the lower end face of the sealing cover, one end of the spring is fixedly connected to the fixing ring, and the other end is fixedly connected to the connecting sleeve.

3. The sealing test apparatus according to claim 2, characterized in that, The connecting sleeve can slide up and down along the fixed rod.

4. The sealing test apparatus according to claim 2, characterized in that, The spring is a tension spring.

5. The sealing test apparatus according to claim 1, characterized in that, The locking component includes a fastening nut, one end of which has a bolt that passes through a connecting sleeve, and the locking component cooperates with the fixing rod.

6. The sealing test apparatus according to claim 1, characterized in that, The fixing rod is threaded and is threadedly connected to the sealing cover.

7. The sealing test apparatus according to claim 1, characterized in that, The connecting ring is annular, and the upper end faces of the multiple connecting sleeves fixedly connected to the connecting ring are on the same plane.

8. The sealing test apparatus according to claim 1, characterized in that, The outer diameter of the collar is the same as the outer diameter of the connecting sleeve, and the collar mates with the connecting hole.

Images