Pressure test leak detection device suitable for barrel cover and barrel bottom of steel barrel

Abstract

The utility model discloses a pressure test leak detection device suitable for a barrel cover and a barrel bottom of a steel barrel, which relates to the technical field of sealing performance detection and comprises a rack, an air storage device, a supporting base used for supporting the barrel bottom or the barrel cover and a movable pressing plate used for pressing the barrel bottom or the barrel cover. The support base is fixed on the rack, and when a to-be-detected support barrel bottom or a to-be-detected barrel cover is mounted on the support base, a closed cavity is formed between the support base and the to-be-detected support barrel bottom or the to-be-detected barrel cover; the movable pressing plate is located above the supporting base, and an air cylinder used for driving the movable pressing plate to move up and down is further installed on the rack. The air storage device is further connected with an air pipe I, and the air pipe I can convey compressed air to the air cylinder and the closed cavity. According to the utility model, pressure test and leak detection can be carried out on the barrel bottom and the barrel cover before the steel barrel is formed, the quality of semi-finished products is ensured, if leakage is detected, repair welding can be carried out before the steel barrel is formed, so that the steel barrel meets the qualified requirement, waste and inferior-quality products are effectively reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing performance detection, in particular to a pressure test and leak detection device suitable for a barrel cover and a barrel bottom of a steel barrel. Background Art

[0002] The bottom and cover of the steel drum are prone to tearing due to material problems and mechanical deformation during the processes of blanking, drawing, punching and flanging, and the flange of the drum cover is prone to loose locking when it is locked. At present, most domestic steel drum production first conducts pressure test and leak detection on the barrel body before the steel drum is curled, and then the bottom and cover of the steel drum are curled after passing the test, and then the entire steel drum is pressure tested and leaked. This detection method can not only accurately distinguish qualified products from unqualified products, but also has an accuracy rate of 100%; however, during the detection process, once the steel drum is leaking, the steel drum is unqualified and can only be treated as scrap. Because steel drums are usually cleaned and sprayed internally after forming, if unqualified steel drums are repaired by welding, the internal cleaning and spraying will be destroyed, that is, the steel drum needs to be cleaned and sprayed again after repairing welding, which increases the production cost of the enterprise.

[0003] Therefore, it is urgently needed to add a device that can test the pressure and leak detection of the bottom and cover of the steel drum at the same time, so as to control the quality of the semi-finished products (bottom and cover) of the steel drum before the combination molding. Utility Model Content

[0004] The utility model aims to provide a pressure test and leak detection device suitable for the barrel cover and barrel bottom of a steel barrel, which can perform pressure test and leak detection on the barrel bottom and barrel cover before the steel barrel is formed, thereby ensuring the quality of the semi-finished product. If leakage is detected, repair welding can be performed before the steel barrel is formed to make it meet the qualified requirements, thereby effectively reducing the generation of waste and defective products and reducing production costs.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted is: a pressure test and leak detection device suitable for the barrel cover and barrel bottom of a steel barrel, comprising a frame, an air storage device, a support base for supporting the barrel bottom or the barrel cover, and a movable pressure plate for pressing the barrel bottom or the barrel cover; the support base is fixed on the frame, and when the supported barrel bottom to be tested or the barrel cover to be tested is installed on the support base, a closed chamber is formed between the support base and the supported barrel bottom to be tested or the barrel cover to be tested; the movable pressure plate is located above the support base, and a cylinder for driving the movable pressure plate to move up and down is also installed on the frame; the air storage device is also connected to an air pipe I, and the air pipe I can transport compressed air to the cylinder and the closed chamber.

[0006] Furthermore, the support base includes a pressure test fixing plate and a sealing rubber ring gasket, the pressure test fixing plate is fixed on the frame, the sealing rubber ring gasket is annular, and the sealing rubber ring gasket is fixed on the pressure test fixing plate.

[0007] Furthermore, the cross section of the sealing rubber ring gasket is L-shaped.

[0008] Furthermore, a one-way valve is installed at the outlet end of the air pipe I, and the air inlet nozzle and the air return nozzle of the cylinder are both connected to the air pipe II, and the two air pipes II are connected in parallel to the air pipe I through a reversing valve.

[0009] Furthermore, an air valve is installed at the inlet end of the air pipe I, and an oil-water separator and a pressure gauge are also installed on the air pipe I.

[0010] Furthermore, a sliding bearing is installed on the frame, and a guide shaft penetrating the sliding bearing and extending upward is installed on the movable pressure plate.

[0011] Furthermore, a sealing component for sealing the holes on the barrel cover is also installed on the movable pressing plate, and the sealing component and the movable pressing plate are detachably installed.

[0012] Furthermore, the sealing assembly includes a sealing beam plate detachably mounted on a movable pressure plate, a sealing member adjustable up and down is mounted on the sealing beam plate, and a sealing rubber that can be used to seal the holes on the barrel cover is mounted on the lower surface of the sealing member; a through hole corresponding to the sealing rubber is also provided on the movable pressure plate.

[0013] Furthermore, the sealing assembly also includes a screw threadedly mounted on the sealing beam plate, a seal is mounted on the lower end of the screw, and a locking nut is also mounted on the screw to lock and fix with the sealing beam plate.

[0014] Furthermore, a connecting plate is installed on the upper surface of the movable pressing plate, and the sealing beam plate is installed on the connecting plate.

[0015] Furthermore, a positioning column is also provided on the support base.

[0016] Furthermore, universal wheels are installed below the frame.

[0017] The beneficial effects of the utility model are:

[0018] 1. Since the pressure test and leak detection equipment for the steel drum body is already available and has been tested, the utility model can test the bottom and cover of the steel drum for leaks before forming the steel drum, thereby ensuring the quality of the semi-finished product. If leakage is detected during the test, the drum body, bottom and cover can be repaired and welded before the steel drum is formed to meet the qualified requirements, thereby reducing the generation of waste and defective products, reducing production costs, ensuring the quality of the steel drum, and ensuring the quality requirements of customers for the products.

[0019] 2. By installing universal wheels at the bottom of the frame, the utility model can be moved except for the gas storage device when in use, so that the utility model is not restricted by the site under the premise of convenient gas source. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings illustrate exemplary embodiments of the present invention and are used to explain the principles of the present invention together with the description. These drawings are included to provide a further understanding of the present invention, and the drawings are included in and constitute a part of this specification.

[0021] Figure 1 This is a front view of the pressure test and leak detection device for the barrel cover and barrel bottom provided by the utility model;

[0022] Figure 2 It is a side view of the pressure test and leak detection device for the barrel cover and barrel bottom provided by the utility model;

[0023] Figure 3 It is a top view of the pressure test and leak detection device for the barrel cover and barrel bottom provided by the utility model;

[0024] Figure 4 It is a top view of the barrel cover to be inspected;

[0025] Figure 5 It is a cross-sectional view of the barrel cover to be inspected.

[0026] Figure 6 It is a top view of the bottom of the barrel to be tested;

[0027] Figure 7 It is a cross-sectional view of the bottom of the barrel to be inspected.

[0028] Markings and corresponding parts names in the attached drawings:

[0029] 1. Gas storage device, 2. Frame, 3. Pressure test fixing plate, 4. Sealing rubber ring gasket, 5. Positioning column, 6. Cylinder, 7. Moving pressure plate, 8. Sliding bearing, 9. Guide shaft, 10. Bearing fixing plate, 11. Locking cover, 12. Connecting plate, 13. Sealing beam plate, 14. Screw, 15. Locking nut, 16. Seal, 17. Sealing rubber, 18. Air pipe I, 19. Air pipe II, 20. Air valve, 21. Check valve, 22. Three-way joint, 23. Reversing valve, 24. Oil-water separator, 25. Pressure gauge, 26. Universal wheel. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and implementations. It is to be understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] like Figures 1 to 5 As shown, the utility model provides a pressure test and leak detection device suitable for the barrel cover and barrel bottom of a steel barrel, comprising a frame 2, an air storage device 1, a support base and a movable pressure plate 7, wherein the frame 2 is a steel frame, the air storage device 1 is used to store compressed air, and the air storage device 1 also provides an air source, the support base and the movable pressure plate 7 are both installed on the frame 2, the movable pressure plate 7 is located above the support base, and the movable pressure plate 7 can move up and down above the support base, and the support base facilitates the installation of the barrel cover or the barrel bottom, the barrel cover is covered on the support base when installed, and the barrel bottom is buckled on the support base when installed, and the movable pressure plate 7 is used to press and fix the barrel cover or the barrel bottom on the support base, so that the barrel bottom or the barrel cover cooperates with the support base to form a sealed chamber.

[0033] The air storage device 1 is also connected to an air pipe Ⅰ18, and the other end of the air pipe Ⅰ18 is installed on the supporting base. When the barrel cover or barrel bottom to be tested is pressed and fixed on the supporting base, the compressed air in the air storage device 1 can be transported through the air pipe Ⅰ18 to the sealed chamber formed by the barrel bottom or barrel cover and the supporting base, so as to test the sealing of the barrel bottom or barrel cover; because the barrel bottom or barrel cover is installed on the supporting base, it will be subjected to the pressure applied by the movable pressing plate 7, and after the compressed air enters the sealed chamber, the pressure of the compressed air will also act on the barrel bottom or barrel cover, so that the barrel bottom or barrel cover can be pressure tested while the sealing test is being carried out.

[0034] It should be noted here that, in order to facilitate the installation of the outlet end of the air pipe Ⅰ18, a circular hole penetrating through the upper surface of the support base can be opened, and the outlet end of the air pipe Ⅰ18 can be sealed and fixed in the circular hole; of course, an air nozzle can also be embedded in the support base, so that the outlet end of the air nozzle passes through the upper surface of the support base, and then the outlet end of the air pipe Ⅰ18 can be connected to the air nozzle.

[0035] In order to prevent the backflow of compressed air transported into the sealed chamber through the air pipe Ⅰ18, a one-way valve 21 may be installed on the air pipe Ⅰ18, and an air valve 20 may be installed at the inlet end of the air pipe Ⅰ18.

[0036] In order to facilitate the installation of the barrel cover and the barrel bottom, the support base in the utility model includes a pressure test fixing plate 3 and a sealing rubber ring pad 4. The pressure test fixing plate 3 is installed on the frame 2 by welding, screw fixing, etc., and the sealing rubber pad 4 is annular. The center of the sealing rubber pad 4 and the center of the pressure test fixing plate 3 are located at the same point, and the sealing rubber pad 4 is fixed to the upper surface of the pressure test fixing plate 3 by bonding, etc. In order to prevent wrong judgment when testing the sealing of the barrel cover or the barrel bottom, therefore, when the sealing rubber pad 4 is installed, the sealing between the sealing rubber pad 4 and the pressure test fixing plate 3 must be ensured.

[0037] Since the edge of the barrel cover has a curled edge after molding, in order to ensure the sealing performance of the sealed chamber formed by the barrel cover, the pressure test fixing plate 3 and the sealing rubber gasket 4 after the barrel cover is installed on the supporting base, the cross-section of the sealing rubber ring gasket 4 can be L-shaped, so that when the barrel cover is installed, the rolled-up part of the barrel cover edge can be pressed against the step surface of the sealing rubber ring gasket 4, and the edge of the inner wall of the barrel cover can be pressed against the upper end surface of the sealing rubber ring gasket 4, which not only ensures that the barrel cover is easy to seal with the sealing rubber ring gasket 4, but also when the barrel cover or the barrel bottom is installed, the vertical section of the sealing rubber ring gasket 4 can limit the lateral displacement of the barrel cover or the barrel bottom, effectively avoiding lateral displacement when the barrel cover or the barrel bottom is pressed by the movable pressing plate 7, thereby ensuring the sealing performance between the barrel cover edge, the barrel bottom opening edge and the sealing rubber ring gasket 4.

[0038] In order to ensure the up and down movement of the movable platen 7, a linear drive element is also installed on the frame 2, and the linear drive element can be one of a cylinder 6, a hydraulic cylinder and an electronic telescopic rod. In the present utility model, in order to avoid setting up a hydraulic pump, etc., the linear drive element preferably uses the cylinder 6, and the output end of the cylinder 6 is fixed to the movable platen 7. In addition, the air inlet nozzle on the cylinder 6 and the air outlet nozzle on the cylinder 6 are both installed with an air pipe II 19, and the other end of the air pipe II 19 is connected to the air storage device 1.

[0039] In order to ensure the expansion and contraction of the cylinder 6 and simplify the piping system as much as possible, a reversing valve 23 is installed at one end of the two air pipes II 19 away from the cylinder 6. At the same time, a three-way joint 22 is installed on the air pipe I 18, and a hose is used to connect the reversing valve 23 and the three-way joint 22, so that the two air pipes II 19 are connected in parallel to the air pipe I 18. Since the hose connecting the reversing valve 23 and the three-way joint 22 needs to both transport and return compressed air, the three-way joint 22 can be installed between the one-way valve 21 and the air valve 20 when it is arranged.

[0040] In order to prevent the compressed air from containing a large amount of oil, water or solid impurities and affecting the air tightness detection of the barrel bottom and barrel cover, an oil-water separator 24 can be installed on the air pipe Ⅰ18. The oil-water separator 24 can separate oil and water from the air flow, thereby ensuring that the compressed air entering the sealed chamber is sufficiently dry; at the same time, in order to facilitate the observation of the pressure of the compressed air and the air pressure conditions in the sealed chamber, a pressure gauge 25 is also installed on the air pipe Ⅰ18.

[0041] In order to ensure that the movable platen 7 always remains in the same straight line during the up and down movement, a plurality of sliding bearings 8 are also installed on the frame 2, and the plurality of sliding bearings 8 are arranged symmetrically with respect to the center of the support base; at the same time, a plurality of guide shafts 9 are also installed on the movable platen 7, and the plurality of guide shafts 9 correspond to the plurality of sliding bearings 8 one by one, and the upper ends of the plurality of guide shafts 9 extend upward after passing through the plurality of sliding bearings 8 one by one. When the guide shafts 9 are set, the length of the guide shafts 9 must be sufficient to ensure that the movable platen 7 will not move out of the sliding bearing 8 when it moves to the lowest height, and when the movable bearing is installed, a bearing fixing plate 10 can be fixed on the frame 2, and the sliding bearing 8 can be inserted into the bearing fixing plate 10, and finally the locking cover 11 can be used to lock the sliding bearing 8 with the bearing fixing plate 10, so that the installation of the sliding bearing 8 is more convenient.

[0042] Since the barrel cover to be inspected by the utility model has holes, in order to ensure that the movable pressing plate 7 can seal the holes on the barrel cover when pressing the barrel cover against the sealing rubber ring gasket 4, a sealing component for sealing the holes on the barrel cover is also installed on the movable pressing plate 7, so that the sealing component can seal the holes on the barrel cover when the movable pressing plate 7 presses the barrel cover against the sealing rubber ring gasket 4. Since there are no holes on the barrel bottom to be inspected, the sealing component does not need to work when inspecting the barrel bottom. Therefore, the sealing component and the movable pressing plate 7 in the utility model are detachably installed. When inspecting the barrel bottom, the sealing component can be removed from the movable pressing plate 7, and when inspecting the barrel cover, the sealing component can be installed on the movable pressing plate 7.

[0043] In the present invention, when there are holes on the barrel cover, in order to facilitate the accurate correspondence between the holes on the barrel cover and the sealing assembly, a positioning column 5 that cooperates with the holes on the barrel cover can also be set on the pressure test fixing plate 3. When the barrel cover is placed on the sealing rubber ring pad 4, the positioning column 5 is inserted into the hole on the barrel cover, so that when the movable pressing plate 7 is pressed against the barrel cover, the sealing assembly can accurately block the hole on the barrel cover. Since the height of the barrel bottom is relatively large, when the present invention is used to detect the barrel bottom, the positioning column 5 on the pressure test fixing plate 3 will not affect the installation and testing of the barrel bottom.

[0044] In the utility model, when there are multiple holes on the barrel cover, there are multiple sealing assemblies on the movable pressure plate 7 and multiple positioning columns 5 on the pressure test fixed plate 3, and the multiple sealing assemblies and multiple positioning columns 5 correspond one-to-one to the multiple holes on the barrel cover.

[0045] Furthermore, the sealing assembly includes a sealing beam plate 13 and a sealing member 16. The sealing beam plate 13 is installed on the movable pressure plate 7, and the sealing beam plate 13 is also installed with the sealing member 16. The height of the sealing member 16 on the sealing beam plate 13 can be adjusted, and the sealing member 16 is also installed with a sealing rubber 17. The shape and size of the sealing rubber 17 are adapted to the shape and size of the holes on the barrel cover, thereby ensuring that the movable pressure plate 7 can accurately seal the holes on the barrel cover while moving downward. Since the utility model does not need to use the sealing rubber 17 when inspecting the barrel bottom, in order to ensure that the movable pressure plate 7 can effectively press the barrel bottom during inspection, the height of the sealing member 16 on the sealing beam plate 13 is set to be adjustable, and a through hole for the sealing member 16 and the sealing rubber 17 to move up and down is opened on the movable pressure plate 7. When the barrel bottom is inspected, the sealing member 16 and the sealing rubber 17 are adjusted upward through the through hole so that the lower surface of the movable pressure plate 7 can effectively act on the barrel bottom. When the barrel cover is inspected, the sealing member 16 and the sealing rubber 17 are adjusted downward through the through hole so that the lower surface of the movable pressure plate 7 can effectively act on the barrel cover and the sealing rubber 17 can seal the holes on the barrel cover.

[0046] In order to facilitate the adjustment of the installation height of the seal 16 and the sealing rubber 17, a threaded hole is also provided on the sealing beam plate 13, and the sealing assembly also includes a screw rod 14 threadedly mounted in the threaded hole, and the seal 16 is fixed at the lower end of the screw rod 14. Therefore, when the screw rod 14 rotates and moves up and down in the threaded hole, the screw rod 14 drives the seal 16 to move up and down, so that the installation height of the seal 16 and the sealing rubber 17 can be adjusted. In order to ensure the stability of the screw rod 14, a locking nut 15 is also provided on the screw rod 14 to lock the screw rod 14 on the sealing beam plate 13.

[0047] In order to prevent the installation of the sealing beam plate 13 from causing damage to the movable platen 7, a connecting plate 12 may be installed at the output end of the cylinder 6, and the connecting plate 12 is fitted with the movable platen 7, and the sealing beam plate 13 is fixed to the connecting plate 12 by screws. The connection between the connecting plate 12 and the output end of the cylinder 6 may be a threaded connection or the like.

[0048] Since the hole sizes of barrel covers of different specifications are not the same, in order to meet the requirements of testing barrel covers of different specifications, the screw 14 can be removed from the sealing beam plate 13 according to the size of the hole on the barrel cover to be tested, and a sealing assembly with a size corresponding to the hole on the barrel cover can be replaced. When there are multiple holes on the barrel cover to be tested, multiple sealing assemblies can also be installed on the connecting plate 12, and the sizes of the sealing rubbers 17 in the multiple sealing assemblies can be consistent or inconsistent, and the sizes of the sealing rubbers 17 in the multiple sealing assemblies are specifically determined according to the size of the hole on the barrel cover to be tested.

[0049] In the present invention, a universal wheel 26 is further installed under the frame 2, and there are multiple universal wheels 26, which are evenly distributed on the bottom surface of the frame 2, so that when the utility model needs to be transported except for the gas storage device 1, it can be directly pushed and rolled; at the same time, in order to make the frame 2 of the utility model stable during use, one of the universal wheels 26 or two of the universal wheels 26 can be set as a universal wheel 26 with a brake; at the same time, in order to facilitate the frame 2 to be moved

[0050] When the utility model is used to test the barrel cover, the barrel cover is placed on the sealing rubber pad 4, and when the barrel cover is placed, the positioning column 5 on the pressure test fixing plate 3 is inserted into the hole on the barrel cover. Then, the air valve 20 switch is opened, and the handle of the reversing valve 23 is turned clockwise, and the output end of the cylinder 6 extends out, driving the moving pressing plate 7, the connecting plate 12, the sealing beam plate 13, and the sealing assembly to move downward, the moving pressing plate 7 is pressed tightly on the barrel cover, and the sealing rubber 17 in the sealing assembly blocks the hole on the barrel cover. The switch of the one-way valve 21 is rotated to make the gas storage device The compressed air in the device 1 enters the closed chamber composed of the barrel cover, the pressure test fixing plate 3, the sealing rubber pad 4, and the sealing rubber 17, and the pressure test value is set at 0.03-0.05MPa. When the closed chamber reaches the test pressure, the leak test liquid is applied to the barrel cover deep pull, the flange eight-sided forming and the flange lock seal, etc., to detect whether there is leakage in each part, and observe the value change of the pressure gauge 25 at the same time. If the value of the pressure gauge 25 is within the set test pressure range, it means that the barrel cover is qualified without leakage. After the test is completed, the handle of the reversing valve 23 is turned counterclockwise, and the output end of the cylinder 6 shrinks under the gas pressure, driving the moving pressing plate 7, the connecting plate 12, the sealing beam plate 13, and the sealing assembly to move up, and the barrel cover is taken out to complete a process.

[0051] When the utility model detects the bottom of the barrel, the locking nut 15 is loosened, the screw 14 is screwed in the opposite direction, the screw 14 moves upward, and the screw 14 moves upward while driving the seal 16 and the sealing rubber 17 to move upward synchronously. When the lower surface of the sealing rubber 17 is flush with the lower surface of the movable pressing plate 7 or the lower surface of the sealing rubber 17 is higher than the lower surface of the movable pressing plate 7, the locking nut 15 is tightened; the barrel bottom is placed on the sealing rubber pad 4, then, the air valve 20 switch is turned on, the handle of the reversing valve 23 is turned clockwise, and the output end of the cylinder 6 extends, driving the movable pressing plate 7 and the connecting plate 12 , the sealing beam plate 13, and the sealing assembly move downward, the moving pressure plate 7 is pressed against the barrel bottom, and the switch of the one-way valve 21 is rotated to allow the compressed air in the gas storage device 1 to enter the closed chamber composed of the barrel bottom, the pressure test fixing plate 3, and the sealing rubber pad 4. The test pressure value is set at 0.03-0.05MPa. When the closed chamber reaches the test pressure, the leak test liquid is applied to the barrel bottom drawing part of the barrel bottom to detect whether there is leakage. At the same time, the value change of the pressure gauge 25 is observed. If the value of the pressure gauge 25 is within the set test pressure range, it means that the barrel bottom drawing part is not leaking and is qualified. After the test is completed, the handle of the reversing valve 23 is turned counterclockwise, and the output end of the cylinder 6 contracts under the gas pressure, driving the moving pressure plate 7, the connecting plate 12, the sealing beam plate 13, and the sealing assembly to move upward, and the barrel bottom is taken out, completing a process.

[0052] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments / methods or examples. In addition, those skilled in the art may combine and combine the different embodiments / methods or examples described in this specification and the features of the different embodiments / methods or examples, unless they are contradictory.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present invention.

Claims

1. A pressure test and leak detection device suitable for the barrel cover and barrel bottom of a steel barrel, characterized in that: The invention comprises a frame (2), an air storage device (1), a support base for supporting a barrel bottom or a barrel cover, and a movable pressing plate (7) for pressing the barrel bottom or the barrel cover; the support base is fixed on the frame (2), and when the barrel bottom to be tested or the barrel cover to be tested is installed on the support base, a closed chamber is formed between the support base and the barrel bottom to be tested or the barrel cover to be tested; the movable pressing plate (7) is located above the support base, and a cylinder (6) for driving the movable pressing plate (7) to move up and down is also installed on the frame (2); the air storage device (1) is also connected to an air pipe I (18), and the air pipe I (18) can transport compressed air to the cylinder (6) and the closed chamber.

2. The pressure test and leak detection device for the barrel cover and barrel bottom of a steel barrel according to claim 1 is characterized in that: The support base comprises a pressure test fixing plate (3) and a sealing rubber ring gasket (4); the pressure test fixing plate (3) is fixed on the frame (2); the sealing rubber ring gasket (4) is annular and fixed on the pressure test fixing plate (3); the cross section of the sealing rubber ring gasket (4) is L-shaped.

3. The pressure test and leak detection device for the barrel cover and barrel bottom of a steel barrel according to claim 1 is characterized in that: A one-way valve (21) is installed at the outlet end of the air pipe I (18), and the air inlet nozzle of the cylinder (6) and the air return nozzle of the cylinder (6) are both connected to the air pipe II (19), and the two air pipes II (19) are connected in parallel to the air pipe I (18) through a reversing valve (23).

4. The pressure test and leak detection device for the barrel cover and barrel bottom of a steel barrel according to any one of claims 1 to 3, characterized in that: The inlet end of the air pipe I (18) is also equipped with an air valve (20), and the air pipe I (18) is also equipped with an oil-water separator (24) and a pressure gauge (25).

5. The pressure test and leak detection device for the barrel cover and barrel bottom of a steel barrel according to any one of claims 1 to 3, characterized in that: A sliding bearing (8) is also installed on the frame (2), and a guide shaft (9) that penetrates the sliding bearing (8) and extends upward is also installed on the movable pressing plate (7).

6. The pressure test and leak detection device for the barrel cover and barrel bottom of a steel barrel according to any one of claims 1 to 3, characterized in that: The movable pressing plate (7) is also provided with a sealing component for sealing the holes on the barrel cover, and the sealing component and the movable pressing plate (7) are detachably mounted.

7. The pressure test and leak detection device for the barrel cover and barrel bottom of a steel barrel according to claim 6 is characterized in that: The sealing assembly comprises a sealing beam plate (13) detachably mounted on a movable pressing plate (7); a sealing member (16) which can be adjusted up and down is mounted on the sealing beam plate (13); and a sealing rubber (17) which can be used to seal holes on a barrel cover is mounted on the lower surface of the sealing member (16); and a through hole corresponding to the sealing rubber (17) is also provided on the movable pressing plate (7).

8. The pressure test and leak detection device for the barrel cover and barrel bottom of a steel barrel according to claim 7, characterized in that: The sealing assembly also includes a screw rod (14) threadedly mounted on the sealing beam plate (13), a sealing member (16) mounted on the lower end of the screw rod (14), and a locking nut (15) is also mounted on the screw rod (14) and is locked and fixed to the sealing beam plate (13).

9. The pressure test and leak detection device for the barrel cover and barrel bottom of a steel barrel according to any one of claims 1 to 3, characterized in that: A positioning column (5) is also provided on the support base.

10. The pressure test and leak detection device for the barrel cover and barrel bottom of a steel barrel according to any one of claims 1 to 3, characterized in that: Universal wheels (26) are also installed below the frame (2).

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