Semi-automatic high-efficiency air tightness detection device

Abstract

The utility model discloses a semi-automatic high-efficiency air tightness detection device, which comprises a base, a tank body arranged on the base and a support frame arranged on one side of the tank body, the top of the tank body is provided with a placing port, a lifting cylinder is arranged on the support frame, the telescopic end of the lifting cylinder is connected with an upper cover, and a test assembly and a movable bearing assembly are symmetrically arranged in the tank body; the testing assembly comprises a plurality of vertically arranged sealing plugs, the plurality of sealing plugs are provided with first through holes and second through holes, the plurality of first through holes are provided with air supply pipes extending to the outside of the tank body, the plurality of second through holes are provided with air pressure meters extending to the outside of the tank body, and connecting pipes communicated with the plurality of air supply pipes are arranged outside the tank body. One end, facing the outside of the tank body, of the sealing plug is in threaded connection with an installation part for the air supply pipe and the barometer to penetrate through, the outer edge of the sealing plug covers the end face of the installation part, a plurality of tested products can be loaded at a time for batch testing, the working efficiency is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness testing, in particular to a semi-automatic and efficient air tightness testing device. Background Art

[0002] Airtightness testing is a method used to verify whether a product or system prevents gas leakage under specific pressure conditions. It is widely used in the manufacturing industry, particularly for products such as medical devices, automotive parts, and aerospace components that must ensure that internal gases do not leak into the external environment or that external gases do not penetrate the interior. This test is typically performed by filling the test object with a gas (such as air or helium) at a specific pressure and then monitoring the pressure change or using a leak detector to detect leaks.

[0003] Currently, most airtightness testing devices are manually operated. The specific process involves filling the test object with gas at a certain pressure, sealing the entrance, and monitoring the internal pressure changes over a period of time. If a leak exists, the pressure will decrease over time, and the extent of the leak can be assessed by measuring the rate of pressure drop. Because manual testing methods can only handle a single product at a time, the entire process, from product positioning and sealing plug installation to subsequent disassembly, requires manual operation. This is particularly time-consuming when dealing with large numbers of products, severely impacting overall work efficiency. To ensure smooth testing, companies are forced to increase their human resources investment, which in turn increases costs. Utility Model Content

[0004] The purpose of the present invention is to provide a semi-automatic and efficient air tightness detection device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A semi-automatic and efficient air tightness testing device comprises a base, a tank body and a support frame located on one side of the tank body are provided on the base, a placement opening is provided on the top of the tank body, a lifting cylinder is installed on the support frame, and a top cover is connected to the telescopic end of the lifting cylinder. A test assembly and a movable support assembly are symmetrically provided in the tank body;

[0007] The test assembly includes several vertically arranged sealing plugs, several of the sealing plugs are provided with through hole 1 and through hole 2, several of the through hole 1 are provided with an air supply pipe extending to the outside of the tank body, several of the through hole 2 are provided with a pressure gauge extending to the outside of the tank body, and a connecting pipe connected to the several air supply pipes is provided on the outside of the tank body. The end of the sealing plug facing the outside of the tank body is threadedly connected to a mounting piece for the air supply pipe and the pressure gauge to pass through, and the outer edge of the sealing plug covers the end face of the mounting piece. Valves are provided on the several air supply pipes.

[0008] Furthermore, the movable supporting assembly includes a pushing cylinder 1 horizontally arranged inside the tank body, the telescopic end of the pushing cylinder 1 is connected to a push plate, the pushing cylinder 1 is located in the middle position of the push plate, and a positioning slide rod 1 that slides with the tank body is provided at the upper and lower ends of the push plate. Several support plates corresponding to the sealing plug are vertically arranged on the side of the push plate facing the center of the tank body, and several of the support plates are slidably connected to an L-shaped top plate, and springs are connected between several of the top plates and the push plates.

[0009] Furthermore, several of the supporting plates are symmetrically provided with T-shaped limiting grooves, and several of the top plates are symmetrically provided with T-shaped limiting blocks adapted to the limiting grooves on their bottoms.

[0010] Furthermore, side fixing components are symmetrically provided in the tank body, and two side fixing components are respectively arranged on both sides of the testing component and the movable supporting component.

[0011] Furthermore, the two side fixing assemblies each include a horizontally arranged pushing cylinder 2, the telescopic end of the pushing cylinder 2 is connected to a fixing plate, the pushing cylinder 2 is located in the middle position of the fixing plate, and a plurality of positioning slide rods 2 are distributed equidistantly in a circle around the pushing cylinder 2. The positioning slide rods 2 slide in cooperation with the tank body and are connected to the fixing plate.

[0012] Furthermore, both fixing plates are provided with anti-skid pads on one side facing the center of the tank body, and both anti-skid pads are provided with a plurality of anti-skid protrusions.

[0013] Furthermore, a sealing gasket is provided on the tank body, and the upper cover presses the sealing gasket to seal the placement opening.

[0014] Furthermore, the tank body is provided with an exhaust pipe, and the air inside the tank body is extracted by connecting the exhaust pipe to an external exhaust device. The upper cover is provided with an electronic valve for injecting air.

[0015] Beneficial effects of the utility model:

[0016] The utility model installs the test products on the sealing plug in sequence, uses the mobile supporting assembly to fix the other end of the product, and lowers the upper cover by the lifting cylinder to close the tank body, then starts the external air pump to inflate the interior of the product through the connecting pipe and the air supply pipe. The operator observes and records the pressure gauge reading, and closes the valve to maintain the pressure after the inflation is completed. If the air pressure value is within the specified range, the product air tightness is qualified; otherwise, it is unqualified. The tank body is opened, the product is taken out, and the qualified and unqualified products are stored separately. In this way, the operator can load multiple test products at one time to carry out batch testing, which significantly improves work efficiency and reduces labor costs.

[0017] The sealing plug is installed by means of threaded connection, which makes it easy to replace the sealing plug.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : Overall structure diagram of the utility model.

[0020] Figure 2 : The internal structure diagram of the tank body of the present utility model.

[0021] Figure 3 : The test component structure diagram of the present utility model.

[0022] Figure 4 : Exploded view of the test assembly of the present invention.

[0023] Figure 5 : Structural diagram of the mobile supporting assembly of the present utility model.

[0024] Figure 6 : Exploded view of the mobile supporting assembly of the present invention.

[0025] Figure 7 : Front structural diagram of the side fixing assembly of the present invention.

[0026] Figure 8 : The back structural diagram of the side fixing component of the utility model.

[0027] : Illustrations: 1. base; 2. tank body; 3. support frame; 4. lifting cylinder; 5. upper cover; 6. test assembly; 7. movable supporting assembly; 8. side fixing assembly; 21. placement port; 22. exhaust pipe; 23. sealing gasket; 51. electronic valve; 61. sealing plug; 62. through hole one; 63. through hole two; 64. air supply pipe; 65. pressure gauge; 66. connecting pipe; 67. mounting part; 68. valve; 71. pushing cylinder one; 72. pushing plate; 73. positioning slide bar one; 74. supporting plate; 75. top plate; 76. spring; 77. limiting groove; 78. limiting block; 81. pushing cylinder two; 82. fixing plate; 83. positioning slide bar two; 84. anti-slip pad; 85. anti-slip protrusion. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0029] Please refer to Figure 1-8 ;

[0030] A semi-automatic and efficient air tightness testing device includes a base 1, a tank body 2 and a support frame 3 located on one side of the tank body 2, a placement opening 21 is provided on the top of the tank body 2 for placing the product to be tested, a lifting cylinder 4 is installed on the support frame 3, and the shortened connection of the lifting cylinder 4 is connected with an upper cover 5 for sealing the placement opening 21, a test component 6 and a movable supporting component 7 are symmetrically provided in the tank body 2, and the test component 6 and the movable supporting component 7 act together on the test product, the test component 6 is used to detect the air tightness of the product, and the movable supporting component 7 is used to abut and fix the product to avoid deviation in the test results due to displacement of the product.

[0031] In this embodiment, the test assembly 6 includes a plurality of vertically arranged sealing plugs 61, which are used to seal the openings of the test product to ensure the airtightness of the product during the test. Preferably, the sealing plugs 61 are made of rubber plugs. Several sealing plugs 61 are provided with through holes 1 62 and through holes 2 63. Several through holes 1 62 are provided with air supply pipes 64 extending to the outside of the tank body 2, and several through holes 2 63 are provided with pressure gauges 65 extending to the outside of the tank body 2. A connecting pipe 66 connected to the plurality of air supply pipes 64 is provided on the outside of the tank body 2. The connecting pipe 66 is connected to an external air pump, which delivers gas to each air supply pipe 64 through the connecting pipe 66, and then delivers the gas into the test product. The sensing end of the pressure gauge 65 is on the sealing plug 61. When air is filled into the internal space of the product, the pointer of the pressure gauge 65 will move according to the change in internal pressure. The reading part of the pressure gauge 65 is provided on the outside of the tank body 2, which is convenient for the operator to directly observe and record data, thereby effectively improving the inspection efficiency. In order to improve the test efficiency and accuracy, the end of the sealing plug 61 facing the outside of the tank body 2 is threadedly connected with a mounting piece 67 for the air supply pipe 64 and the pressure gauge 65. The sealing plug 61 is installed by threaded connection, which can facilitate the replacement of the sealing plug 61. Since the sealing plug 61 is soft, when the test product is inserted into the sealing plug 61, the sealing plug 61 will undergo a certain degree of deformation, which may affect its sealing effect. Therefore, the outer edge of the sealing plug 61 covers the end face of the mounting piece 67. When the end face of the product abuts the outer edge of the sealing plug 61, a tighter seal can be formed, further enhancing the sealing performance of the product and ensuring the reliability of the airtightness test. Valves 68 are provided on several air supply pipes 64 to individually control the opening and closing of each air supply pipe 64. After the inside of the product is filled with gas, the sealing state of the product can be ensured by closing a certain valve 68 separately without interfering with the test process of other products, ensuring the smooth progress of the entire test process. The valve 68 is outside the tank body 2, which is convenient for the operator to manually control.

[0032] Specifically, the operator installs the test product on the sealing plug 61 in sequence, uses the mobile supporting assembly 7 to fix the other end of the test product, and lowers the upper cover 5 through the lifting cylinder 4 to close the tank body 2, and then starts the external air pump to inflate the interior of the product through the connecting pipe 66 and the air supply pipe 64. The operator observes and records the reading of the pressure gauge 65. After the inflation is completed, the valve 68 is closed to maintain the pressure. If the air pressure value is within the specified range, the product air tightness is qualified; otherwise, it is unqualified. The upper cover 5 is opened, the product is taken out, and the qualified and unqualified products are stored separately. In this way, the operator can load multiple test products at one time and perform batch testing, which significantly improves work efficiency and reduces labor costs.

[0033] In this embodiment, the mobile support assembly 7 includes a pushing cylinder 71 horizontally arranged inside the tank body 2, and the telescopic end of the pushing cylinder 71 is connected to a push plate 72. The pushing cylinder 71 is located in the middle position of the push plate 72 to ensure uniform distribution of the driving force. Positioning slide bars 73 that slide with the tank body 2 are provided at the upper and lower ends of the push plate 72 to maintain the stability of the push plate 72 during movement. A number of support plates 74 corresponding to the sealing plug 61 are vertically arranged on one side of the push plate 72 toward the center of the tank body 2. A plurality of support plates 74 are slidably connected to an L-shaped top plate 75. The top plate 75 The horizontal portion is used to support the bottom of the test product, while the vertical portion is used to abut the end of the product to ensure the stability of the product during the entire test process. A spring 76 is connected between the top plates 75 and the push plates 72. When the top plate 75 abuts the test product against the sealing plug 61, it continues to push inward for a short distance until the spring 76 begins to be stressed and compressed and deformed. At this time, the work of pushing the cylinder 71 is stopped. The spring 76 will continue to provide a force toward the test product to the top plate 75, thereby making the contact between the test product and the sealing plug 61 closer and enhancing the sealing effect.

[0034] In order to ensure that the direction does not change during movement, T-shaped limit grooves 77 are symmetrically provided on the support plate 74, and T-shaped limit blocks 78 that are compatible with the limit grooves 77 are symmetrically provided at the bottom of several top plates 75, so that the top plates 75 can only move along the path direction of the limit grooves 77, avoiding the problem of loose fixation or poor sealing of the product due to directional deviation.

[0035] The two side fixing assemblies 8 are respectively arranged on both sides of the test assembly 6 and the movable support assembly 7. The two side fixing assemblies 8 include a horizontally arranged pushing cylinder 81. The telescopic end of the pushing cylinder 81 is connected to a fixing plate 82. The pushing cylinder 81 is located in the middle position of the fixing plate 82 to ensure uniform distribution of the driving force. Around the pushing cylinder 81, a number of positioning slide rods 83 are distributed in a circle at equal intervals. The positioning slide rods 83 slide with the tank body 2 and are connected to the fixing plate 82 to ensure the stability and linearity of the fixing plate 82 during movement. When the movable support assembly 7 presses the test product against the test assembly 6, the operator can start the pushing cylinders 81 on both sides. The pushing cylinders 81 will push the fixing plate 82 toward the center of the tank body 2 until the fixing plate 82 is tightly fitted to the side of the test product, thereby achieving fixation of the test product from multiple directions and ensuring stability during the test process.

[0036] In addition, the two fixing plates 82 are provided with anti-slip pads 84 on one side facing the center of the tank body 2. Preferably, the anti-slip pads 84 are rubber pads, and the two anti-slip pads 84 are provided with a number of anti-slip protrusions 85 to increase the friction between the fixing plates 82 and the test product, thereby more firmly fixing the product during the test to prevent it from sliding or displacement.

[0037] In this embodiment, a sealing gasket 23 is provided on the tank body 2, and the upper cover 5 presses the sealing gasket 23 to seal the placement opening 21, ensuring that the internal gas will not overflow or the external gas will not flow into the tank body 2 after the upper cover 5 covers the tank body 2.

[0038] In this embodiment, an exhaust pipe 22 is provided on the tank body 2, which is connected to an external exhaust device through the exhaust pipe 22 to extract the air inside the tank body 2. Since the tank body 2 is in a vacuum state after the air is extracted, the upper cover 5 cannot be opened at this time. For this reason, an electronic valve 51 for injecting air is provided on the upper cover 5 to facilitate the opening of the upper cover 5.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A semi-automatic and efficient air tightness detection device, comprising a base (1), characterized in that: The base (1) is provided with a tank body (2) and a support frame (3) located on one side of the tank body (2); a placement opening (21) is provided on the top of the tank body (2); a lifting cylinder (4) is installed on the support frame (3); a telescopic end of the lifting cylinder (4) is connected to an upper cover (5); a test assembly (6) and a movable support assembly (7) are symmetrically provided in the tank body (2); The test assembly (6) includes a plurality of vertically arranged sealing plugs (61), each of which is provided with a through hole 1 (62) and a through hole 2 (63), each of which is provided with an air supply pipe (64) extending to the outside of the tank body (2), each of which is provided with a pressure gauge (65) extending to the outside of the tank body (2), and a connecting pipe (66) connected to the plurality of air supply pipes (64) is provided outside the tank body (2). One end of the sealing plug (61) facing the outside of the tank body (2) is threadedly connected to a mounting member (67) through which the air supply pipe (64) and the pressure gauge (65) pass. The outer edge of the sealing plug (61) covers the end face of the mounting member (67), and each of the air supply pipes (64) is provided with a valve (68).

2. A semi-automatic high-efficiency airtightness detection device according to claim 1, characterized in that: The movable supporting assembly (7) includes a pushing cylinder (71) horizontally arranged inside the tank body (2), the telescopic end of the pushing cylinder (71) is connected to a push plate (72), the pushing cylinder (71) is located in the middle position of the push plate (72), and a positioning slide rod (73) that slides with the tank body (2) is provided at the upper and lower ends of the push plate (72), and a plurality of supporting plates (74) corresponding to the sealing plug (61) are vertically arranged on one side of the push plate (72) toward the center of the tank body (2), and a plurality of the supporting plates (74) are slidably connected to an L-shaped top plate (75), and a spring (76) is connected between the top plate (75) and the pushing plate (72).

3. A semi-automatic high-efficiency airtightness detection device according to claim 2, characterized in that: Several supporting plates (74) are symmetrically provided with T-shaped limiting grooves (77), and several top plates (75) are symmetrically provided with T-shaped limiting blocks (78) adapted to the limiting grooves (77) at their bottoms.

4. A semi-automatic and efficient air tightness detection device according to claim 1, characterized in that: Side fixing assemblies (8) are also symmetrically provided in the tank body (2), and the two side fixing assemblies (8) are respectively arranged on both sides of the test assembly (6) and the movable supporting assembly (7).

5. A semi-automatic and efficient air tightness detection device according to claim 4, characterized in that: The two side fixing assemblies (8) each include a horizontally arranged push cylinder 2 (81), the telescopic end of the push cylinder 2 (81) is connected to a fixed plate (82), the push cylinder 2 (81) is located in the middle of the fixed plate (82), and a plurality of positioning slide rods 2 (83) are equidistantly distributed in a circle around the push cylinder 2 (81), and the positioning slide rods 2 (83) are slidably matched with the tank body (2) and connected to the fixed plate (82).

6. A semi-automatic and efficient air tightness detection device according to claim 5, characterized in that: The two fixing plates (82) are both provided with anti-skid pads (84) on one side facing the center of the tank body (2), and the two anti-skid pads (84) are both provided with a plurality of anti-skid protrusions (85).

7. A semi-automatic and efficient air tightness detection device according to claim 1, characterized in that: A sealing gasket (23) is provided on the tank body (2), and the upper cover (5) presses the sealing gasket (23) to seal the placement opening (21).

8. The semi-automatic and efficient air tightness detection device according to claim 1, characterized in that: The tank body (2) is provided with an exhaust pipe (22), and the air inside the tank body (2) is extracted by connecting the exhaust pipe (22) to an external exhaust device. The upper cover (5) is provided with an electronic valve (51) for injecting air.

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