Water circulation mechanism of steel bottle sealing detection machine

Abstract

The utility model relates to steel bottle sealing property detection technical field, especially a kind of water circulation mechanism of steel bottle sealing property detection machine, including water circulation body, water outlet device, filtering device and closed device, the water circulation branch is formed by the pool body between water outlet device and the water circulation body of the detection machine of the utility model;The utility model can introduce the water in pool body into filtering device and send back pool body after filtering by water circulation branch, thereby to filter out the impurity in pool body, avoid that impurity content is too high and influence worker to observe the internal condition of pool body.

Description

Technical Field

[0001] This utility model relates to the field of cylinder sealing test technology, and in particular to a water circulation mechanism for a cylinder sealing tester. Background Technology

[0002] A gas cylinder is a sealed metal container used to store or transport high-pressure gases, liquefied gases, or cryogenic liquids. It is usually made of high-strength steel or composite materials.

[0003] Currently, gas cylinders undergo sealing tests after molding to prevent defects from affecting the storage of gases or liquids. The gas filling test is one of the commonly used methods to test the sealing performance of gas cylinders. The principle is to immerse the cylinder in water and fill it with gas (usually an inert gas, such as nitrogen). Then, observe whether bubbles are generated in the water to determine whether the cylinder is properly sealed.

[0004] However, in actual production activities, companies do not specifically clean the cylinders before the cylinder seal test. Special cleaning of the cylinders usually occurs before painting, requiring cleaning and drying. Therefore, in order to make the seal test more accurate, the workers in the testing department usually just use the water in the testing pool to simply treat the cylinders. Over time, the contaminants (such as dust and metal shavings) remaining on the cylinder surface will accumulate in the testing pool, which can easily affect the workers' observation of the testing pool.

[0005] In summary, improvements are needed to the existing sealing testing machine. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a gas cylinder sealing tester, which aims to solve the problems mentioned in the background technology.

[0007] The technical solution of this utility model is as follows: a gas cylinder sealing tester includes a pool body, a clamping mechanism that is raised and lowered on the pool body and used to fix the gas cylinder, and a gas nozzle installed on the clamping mechanism and capable of being supplied with gas by a gas source device. It also includes a water circulation mechanism, which can at least construct and form a water circulation branch with the pool body.

[0008] The water circulation mechanism also includes at least a filtration device, and the water circulation branch can introduce water stored in the pool into the filtration device for filtration and then send it back to the pool.

[0009] By adopting the above technical solution:

[0010] This invention features a water circulation mechanism that allows water stored in the pool to be introduced into a filtration device for filtration (this invention primarily filters particulate impurities). After filtration, the water is returned to the pool, thus maintaining a relatively low level of impurities in the pool and preventing interference with workers' observation and testing of the pool.

[0011] In this invention, "water storage" refers to water that was originally stored in the pool.

[0012] Preferably, the water circulation mechanism includes:

[0013] The water circulation system is installed on one side of the pool and has a filter chamber;

[0014] The water outlet device consists of a water pump and an outlet pipe, and is used to send the water in the filter chamber into the pool.

[0015] The water inlet is located on the water circulation body and supplies the water stored in the pool to enter the filtration chamber;

[0016] A filter device is installed inside the filter chamber;

[0017] A sealing device, installed inside the filter chamber, is used to open or close the water inlet;

[0018] The drain control valve is installed on the water circulation body and is used to control the drainage of the filter chamber.

[0019] Preferably, the sealing device includes:

[0020] A closed plate is rotatably connected to the filter chamber via a drive shaft;

[0021] A drive unit, used to control the forward or reverse rotation of a drive shaft;

[0022] The inlet can be closed or opened when the sealing plate rotates.

[0023] Preferably, the filtration device comprises:

[0024] The mounting plate consists of a first mounting plate and a second mounting plate that are spaced apart.

[0025] The filter screen is fixedly connected between the first mounting plate and the second mounting plate;

[0026] The first mounting plate and the second mounting plate are fixedly connected to the inner wall of the filter chamber. The filter screen divides the filter chamber into an inner cavity and an outer cavity with an inner and outer spaced apart. The outer cavity can communicate with the water inlet. The first mounting plate and / or the second mounting plate are provided with a water outlet connected to the water outlet pipe. The water outlet is connected between the inner cavity and the water outlet pipe.

[0027] Preferably, the enclosing plate comprises:

[0028] The support plate consists of a first support plate and a second support plate that are spaced apart.

[0029] A closed plate is connected between the first support plate and the second support plate;

[0030] The first support plate is controlled by the driver via the transmission shaft, and the second support plate is slidably connected to the inner wall of the filter chamber.

[0031] Preferably, the water circulation body is further provided with a cleaning port, and a cover plate is detachably connected to the cleaning port.

[0032] Preferably, the driver includes:

[0033] The driven gear is connected to the drive shaft;

[0034] The drive rack is slidably mounted on the water circulation body and meshes with the driven gear;

[0035] The water circulation body or pool is equipped with a hydraulic cylinder for controlling the reciprocating motion of the drive rack.

[0036] Preferably, a sealing ring is provided at the end of the water inlet near the sealing plate.

[0037] By adopting the above technical solution:

[0038] The water circulation mechanism of this utility model is equipped with a sealing device that can close or open the water inlet. When open, the water in the pool is filtered by the water outlet and the filter. When closed, the filter can be cleaned by opening the cover.

[0039] Preferably, the inner wall of the bottom of the pool is inclined towards the water inlet.

[0040] By adopting the above technical solution:

[0041] The inclined design of the bottom of the pool body in this invention makes it easier for impurities in the pool body to move towards the inlet, and the inlet can then more easily send these impurities into the filter chamber.

[0042] Preferably, the filter device is spaced apart from the bottom inner wall of the filter chamber.

[0043] By adopting the above technical solution:

[0044] The gap between the filter device and the bottom of the filter chamber allows impurities in the filter chamber to be discharged through the gap, making it easier to clean the filter chamber. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model;

[0047] Figure 2 for Figure 1 AA section view in the middle;

[0048] Figure 3 for Figure 1 BB section view in the middle;

[0049] Figure 4 for Figure 2 Enlarged view of part A in the image;

[0050] Figure 5 for Figure 1 Enlarged view of part B in the image;

[0051] Figure 6 for Figure 2 Enlarged view of section C in the image;

[0052] Figure 7 for Figure 3 CC section view in the middle;

[0053] Figure 8 This is a schematic diagram of the structure of the filtration device and the sealing device in a specific embodiment of this utility model;

[0054] Figure 9 This is a schematic diagram of the structure of the fixing base in a specific embodiment of this utility model;

[0055] Figure 10 for Figure 1 Rear view. Detailed Implementation

[0056] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0057] like Figures 1-10As shown, this embodiment discloses a gas cylinder sealing tester, including a pool body 10, a clamping mechanism 2 that is movable on the pool body and used to fix the gas cylinder, a gas nozzle installed on the clamping mechanism 2 and capable of being supplied with gas by a gas source device, and a water circulation mechanism.

[0058] The clamping mechanism in this embodiment includes:

[0059] The lifting seat 20 has two lifting grooves 21 recessed on the inner wall of the pool body 10. A longitudinally extending limiting shaft 22 is installed in the lifting groove 21. The lifting seat 20 has a limiting port for the limiting shaft 22 to pass through, which means that the lifting seat can slide up and down on the limiting shaft 22. The bottom of the lifting seat 20 is tapered, which makes it easy to enter the pool body when descending. At the same time, the bottom of the lifting seat 20 is provided with a support shaft, and a flange is connected to the support shaft.

[0060] The first hydraulic cylinder 23 is installed inside the pool body. The bottom inner wall of the pool body is typically inclined towards the water circulation mechanism (e.g., ...). Figure 3 The bottom of the pool is provided with a hydraulic cylinder mounting cavity 230. The opening of the hydraulic cylinder mounting cavity 230 is detachably connected to a first sealing plate 231. Specifically, the detachable method is that the mating surfaces of the first sealing plate and the hydraulic cylinder mounting cavity are provided with matching threaded holes, and the two can be mated by bolts. Generally, the first sealing plate 231 is provided with a movable opening 232 for the piston shaft of the first hydraulic cylinder 23 to pass through. In order to achieve sealing, the mating surfaces of the first sealing plate 231 and the hydraulic cylinder mounting cavity 230 as well as the movable opening 232 can be provided with sealing rings 233 (or sealing layers) to achieve sealing treatment. The piston shaft of the first hydraulic cylinder 23 is connected to the flange on the lifting seat 20 through a flange, thereby realizing the lifting control of the lifting seat 20.

[0061] The cylinder chamber 24 is formed on the lifting seat 20. The opening of the cylinder chamber 24 is detachably connected to a second sealing plate 241. The structure of the second sealing plate 241 is the same as that of the first sealing plate 231. The cylinder chamber 24 is provided with a cylinder 242. The piston end of the cylinder 242 is fixedly connected to an insert block 243. The insert block 243 is provided with a slot.

[0062] Insert rod 25, in this embodiment there can be two insert rods 25, which are inserted from the two end slots of the slot and fixed by the fastening bolts on the insert block 243. Specifically, the insert rod 24 has a positioning groove. When the insert rod 24 is inserted into the slot, the positioning groove is aligned with the fastening bolt, and the fastening bolt is tightened. One end of the fastening bolt enters the positioning groove and abuts against the insert rod, thereby fixing the insert rod. In order to ensure stability, in other embodiments the number of fastening bolts and positioning grooves can be appropriately increased to fix the insert rod more stably.

[0063] The upper clamping seat 26 is fixedly connected to one end of the insertion rod 25. The upper clamping seat 26 is provided with the gas nozzle 261. The bottom of the upper clamping seat 26 is recessed and provided with a bottle mouth groove 26a for the gas cylinder mouth to enter. A sealing ring is also provided in the bottle mouth groove 26a.

[0064] In this embodiment, the lifting seat 20 is provided with a lower positioning groove 27 at the position corresponding to the upper clamping seat 26, and a drainage groove 271 penetrating one side of the lifting seat 20 is provided on the groove wall of the lower positioning groove 27.

[0065] The water circulation mechanism of this embodiment can at least construct and form a water circulation branch with the pool body; wherein, the water circulation mechanism has a filtration device, and the water circulation branch can introduce water stored in the pool body into the filtration device for filtration and then return it to the pool body. The water circulation mechanism includes:

[0066] The water circulation body 30 is installed on one side of the pool body 10 and has a filter chamber 31. In this embodiment, the water circulation body 30 is integrally formed with the pool body 10.

[0067] The water outlet device consists of a water pump 310 and a water outlet pipe 311, and is used to send the water in the filter chamber into the pool body 10.

[0068] The inlet 32 ​​is located on the water circulation body and supplies the water stored in the pool 10 into the filtration chamber;

[0069] A filter device is installed inside the filter chamber;

[0070] A sealing device, installed inside the filter chamber, is used to open or close the inlet 32;

[0071] The drain control valve 33 is installed on the water circulation body 30 and is used to control the drainage of the filter chamber.

[0072] The sealing device in this embodiment includes:

[0073] The sealing plate 40 is rotatably connected to the filter chamber via the drive shaft 404;

[0074] A driver is used to control the forward or reverse rotation of the drive shaft 404;

[0075] When the sealing plate 40 rotates, it can close or open the water inlet 32.

[0076] In this embodiment: the filtration device includes:

[0077] The mounting plate is composed of a first mounting plate 51 and a second mounting plate 52 that are spaced apart.

[0078] Filter screen 53 is fixedly connected between the first mounting plate 51 and the second mounting plate 52;

[0079] The first mounting plate 51 and the second mounting plate 52 are fixedly connected to the inner wall of the filter chamber. The filter screen 53 divides the filter chamber into an inner cavity 54 and an outer cavity 55, which are spaced apart. The outer cavity 55 can communicate with the water inlet 32. The second mounting plate 52 is provided with a water outlet 56 connected to the water outlet pipe 311. The water outlet 56 is connected between the inner cavity 54 and the water outlet pipe 311.

[0080] In this embodiment, the first mounting plate 51 is fixedly connected to the inner wall of the filter chamber (i.e., the outer chamber 55) via a fixing seat 51a, and the second mounting plate 52 is integrally formed with the water circulation body 30. The second mounting plate 52 has an annular opening 52a on the side near the first mounting plate, and the annular opening 52a allows one end of the filter screen 53 to be inserted.

[0081] The fixed base 51a is fixedly connected to the water circulation body 30, and the top end face of the fixed base 51a is provided with a stepped surface. A groove 51b is recessed on the stepped surface. The first mounting plate can be supported on the fixed base by engaging with the groove 51b through the limiting plug 51c.

[0082] In this embodiment: the sealing plate includes:

[0083] The support plate is composed of a first support plate 401 and a second support plate 402 that are spaced apart.

[0084] The enclosed plate 403 is connected between the first support plate 401 and the second support plate 402;

[0085] The first support plate 401 is controlled by the driver via the transmission shaft 404, and the second support plate 402 is slidably connected to the inner wall of the filter chamber. In this embodiment, the opening of the water inlet can be adjusted by the closed plate body, that is, the water inlet can be closed, fully open or partially open.

[0086] In this embodiment, the circumferential sidewall of the second mounting plate is provided with a groove 60, and one end of the second support plate slides in the groove 60. That is to say, the second support plate can rotate in the circumferential direction of the second mounting plate, and the maximum range of motion of the second support plate is the length of the groove 60.

[0087] In this embodiment: the water circulation body 30 is also provided with a cleaning port 70, and a cover plate 71 is detachably connected to the cleaning port 70. The structure of the cover plate 71 is the same as that of the first sealing plate, and it is also detached and connected by bolts.

[0088] In this embodiment: the driver includes:

[0089] The driven gear 80 is connected to the drive shaft 404;

[0090] The drive rack 81 is slidably mounted on the water circulation body 30 and meshes with the driven gear 80;

[0091] The water circulation body is equipped with a second hydraulic cylinder 82 for controlling the reciprocating movement of the drive rack 81. The drive rack 81 is provided with a drive part connected to the piston shaft of the second hydraulic cylinder 82, and the pool body 10 is provided with a slide rail 81a for supporting the sliding of the drive rack 81.

[0092] In this embodiment, a sealing ring 233 is provided at one end of the water inlet 32 ​​near the sealing plate 40 (the connection end between the water inlet and the filter chamber).

[0093] In this embodiment: the filter device is spaced apart from the bottom inner wall of the filter chamber, that is, the filter screen is spaced apart from the bottom of the outer chamber.

[0094] In this embodiment, the pool body is provided with an oil inlet 90 and an oil outlet 91, and the lifting seat is provided with an air inlet 92 and an air outlet 93. The first hydraulic cylinder and the second hydraulic cylinder in this embodiment are both controlled by existing hydraulic systems, while the air cylinder can be controlled by a pneumatic system (also called a pneumatic pressure system), and the air nozzle can be supplied with air by an air source system (such as an air supply pump). The hydraulic system, pneumatic system and air source system are mature existing technologies, so they will not be described in detail in this embodiment.

[0095] The principle of this embodiment is:

[0096] During testing, the cylinder is placed in the lower positioning slot, and the upper clamping seat is lowered by the cylinder to contact the cylinder mouth, thus sealing the cylinder mouth and clamping the cylinder. Then, the first hydraulic cylinder controls the lifting seat to lower and send the cylinder into the pool. Finally, the air supply pump is used to fill the cylinder with air through the air nozzle, and the quality of the cylinder is judged by observing the bubbles in the pool.

[0097] In order to adapt to the existing operating habits of workers, this embodiment sets the bottom inner wall of the pool in a stepped shape, so that workers can place the cylinders at a high point on the bottom inner wall of the pool when using the clean water in the pool to clean them.

[0098] In this embodiment, the inclination of the inner wall at the bottom of the pool can guide most of the particulate impurities in the pool to move to a lower position. During circulation, the second hydraulic cylinder drives the closed plate to open the water inlet through the drive rack and driven gear structure, and then starts the water pump to send the water filtered by the filter screen in the filter chamber back into the pool, thereby concentrating most of the particulate impurities in the filter chamber.

[0099] This embodiment uses a filter screen to filter impurities. Therefore, the filter screen needs to be cleaned regularly. When cleaning, the water inlet is sealed with a sealing plate and the cover is opened. Then, a water pump is used to partially remove the water from the filter chamber. After that, the filter screen is cleaned. After cleaning, the drain control valve is opened to drain the impurities and accumulated water from the filter chamber. After cleaning is completed, the drain control valve is closed and the cover is reinstalled.

[0100] It is worth mentioning that:

[0101] In this embodiment, the filter screen and the bottom of the filter chamber are spaced apart, which allows impurities in the filter chamber to pass through the gap and be discharged through the drain control valve.

[0102] In another drainage method of this embodiment, when the water inlet is opened, the drainage control valve is opened at the same time. Due to the inclined setting of the inner wall at the bottom of the pool, the water in the pool body will also flush away the impurities in the filter chamber.

[0103] This embodiment is applicable to filtering particulate impurities. During the molding of the steel cylinder, there may be grease or other substances on the surface of the cylinder. Therefore, during the sealing test, the water in the tank will gradually become turbid. Therefore, it is recommended to regularly scrub the inner wall of the tank. When scrubbing, the water in the tank can be drained first.

[0104] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water circulation mechanism for a gas cylinder sealing tester, characterized in that: include: A water circulation body (30) is installed on one side of the pool body (10) of the testing machine and has a filter chamber (31). The water outlet device consists of a water pump (310) and an outlet pipe (311), and is used to send the water in the filter chamber into the pool body (10); The inlet (32) is located on the water circulation body and supplies the water stored in the pool (10) into the filtration chamber; A filter device is installed inside the filter chamber; A sealing device is installed inside the filter chamber and is used to open or close the inlet (32). A drain control valve (33) is installed on the water circulation body (30) and is used to control the drainage of the filter chamber.

2. The water circulation mechanism of the gas cylinder sealing tester according to claim 1, characterized in that: The sealing device includes: The sealing plate (40) is rotatably connected to the filter chamber via the drive shaft (404); A driver is used to control the forward or reverse rotation of the drive shaft (404); When the sealing plate (40) rotates, it can close or open the water inlet (32).

3. The water circulation mechanism of the gas cylinder sealing tester according to claim 2, characterized in that: The filtration device includes: The mounting plate consists of a first mounting plate (51) and a second mounting plate (52) spaced apart. The filter screen (53) is fixedly connected between the first mounting plate (51) and the second mounting plate (52); The first mounting plate (51) and the second mounting plate (52) are fixedly connected to the inner wall of the filter chamber. The filter screen divides the filter chamber into an inner cavity (54) and an outer cavity (55) with an inner and outer spaced apart. The outer cavity (55) can communicate with the water inlet (32). The first mounting plate (51) and / or the second mounting plate (52) are provided with a water outlet (56) connected to the water outlet pipe (311). The water outlet (56) is connected between the inner cavity (54) and the water outlet pipe (311).

4. The water circulation mechanism of a gas cylinder sealing tester according to claim 2 or 3, characterized in that: The enclosure plate includes: The support plate is composed of a first support plate (401) and a second support plate (402) arranged at intervals; The closed plate (403) is connected between the first support plate (401) and the second support plate (402); The first support plate (401) is controlled by the driver via the transmission shaft (404), and the second support plate (402) is slidably connected to the inner wall of the filter chamber.

5. The water circulation mechanism of a gas cylinder sealing tester according to claim 2 or 3, characterized in that: The water circulation body (30) is also provided with a cleaning port (70), and a cover plate (71) is detachably connected to the cleaning port (70).

6. The water circulation mechanism of a gas cylinder sealing tester according to claim 4, characterized in that: The driver includes: The driven gear (80) is connected to the drive shaft (404); The drive rack (81) is slidably disposed on the water circulation body (30) and meshes with the driven gear (80); The water circulation body or pool body is equipped with a hydraulic cylinder for controlling the reciprocating motion of the drive rack (81).

7. The water circulation mechanism of a gas cylinder sealing tester according to claim 4, characterized in that: The inlet (32) is provided with a sealing ring (233) at one end near the sealing plate (40).

8. The water circulation mechanism of a gas cylinder sealing tester according to claim 2 or 3, characterized in that: The filter device is spaced apart from the bottom inner wall of the filter chamber.

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