Gas cylinder sealing performance detection device

Abstract

The utility model discloses a gas cylinder sealing detection device, which belongs to the technical field of gas cylinder sealing detection, and is characterized in that the top of a support frame is provided with detection equipment for providing sealing detection for a gas cylinder main body, the detection equipment is provided with a plurality of detection ports, and each detection port is provided with a detector used for detecting the sealing of the gas cylinder. The detection equipment is provided with a plurality of detection ports and each port is provided with a detector, so that multiple detection can be performed on the gas cylinder main body at the same time, batch detection operation is realized, and the high efficiency of the detection device is obviously improved; meanwhile, the arranged lifting mechanism can perform position adjustment according to the height of the gas cylinder and can perform fixed adjustment according to the thickness of the gas cylinder main body in cooperation with the positioning mechanism, so that the universality and the application range of the device are greatly improved, the detection device can be adjusted according to the size of the gas cylinder, the gas cylinder is prevented from shaking in the detection process, and the detection efficiency is improved. The accuracy of a detection result is further ensured.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder sealing detection technology, specifically a gas cylinder sealing detection device. Background Technology

[0002] Gas cylinders are widely used in many fields such as industrial production, medical care, and gas storage and transportation. As key containers for storing compressed and liquefied gases, they are widely used. However, once a gas cylinder has a sealing problem, it is very easy to cause gas leakage. This not only wastes gas resources, but may also cause serious safety accidents such as fires, explosions, and poisoning due to leaked flammable and toxic gases, threatening human life and the ecological environment. Therefore, gas cylinders need to be tested for sealing during the production process.

[0003] According to the announcement number CN221959707U, a gas cylinder sealing performance testing device includes a gas cylinder body and a sealing shell. The sealing shell has an outlet on its side and a flexible tube connected to its bottom. The flexible tube is fitted onto the outer wall of the gas cylinder body, and a clamp unit is provided on the outside of the flexible tube. The flexible tube is fastened to the outer wall of the gas cylinder body through the clamp unit. The device utilizes the rotating part of the bolt head to tighten the clamp body, thereby ensuring a tight seal between the flexible tube and the outer wall of the gas cylinder body, preventing air leakage at the junction of the flexible tube and the outer wall of the gas cylinder body, which would affect the gas cylinder's sealing performance. The testing method is intuitive; by observing whether the balloon inflates, it is possible to quickly determine if the gas cylinder is leaking. Alternatively, the outlet can be plugged, and the change in the pressure count value can be observed to determine the gas cylinder's sealing performance. The testing efficiency is high, requiring no movement of the gas cylinder, avoiding collisions and damage, and eliminating the need for filling and venting the gas cylinder, resulting in low energy consumption and low cost.

[0004] As described above, the gas cylinder sealing test device can only test a single gas cylinder during the testing process, and cannot achieve batch testing. At the same time, the test device cannot be adjusted according to the size of the gas cylinder, which limits the number of gas cylinders that can be tested. In order to solve the above problems, an improved gas cylinder sealing test device is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a gas cylinder sealing test device. The test device is equipped with multiple test ports, each equipped with a detector, which can simultaneously perform multiple tests on the gas cylinder body, realize batch testing operations, and significantly improve the efficiency of the test device. At the same time, the lifting mechanism can be adjusted according to the height of the gas cylinder and, together with the positioning mechanism, can be fixed and adjusted according to the thickness of the gas cylinder body, which greatly improves the versatility and applicability of the device. It demonstrates that the test device can be adjusted according to the size of the gas cylinder, while preventing the gas cylinder from shaking during the test, further ensuring the accuracy of the test results, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gas cylinder sealing detection device, comprising a support frame and a gas cylinder body, wherein the top of the support frame is provided with a detection device for sealing detection of the gas cylinder body, the detection device is provided with multiple detection ports, each detection port is equipped with a detector for detecting the sealing of the gas cylinder, and the lower end of the detection port is fixedly connected to the connection port of the gas cylinder body through a connecting component to facilitate the delivery of gas inside the gas cylinder body;

[0007] The bottom of the support frame is provided with a lifting mechanism, and the top of the lifting mechanism is fixedly connected with a mounting plate. The lifting mechanism is used to adjust the position according to the height of the gas cylinder.

[0008] A positioning mechanism is installed at the position corresponding to the gas cylinder body of the lifting mechanism. The positioning mechanism is used to fix and adjust according to the thickness of the gas cylinder body.

[0009] Preferably, the connecting assembly includes a threaded sleeve, which is fixed to the outer wall of the detection port and located below the detector. The lower end of the detection port is inserted into the gas cylinder body. A fixing member is threadedly connected to the surface of the threaded sleeve. A threaded groove is formed on the surface of the connecting port of the gas cylinder body to cooperate with the fixing member. A fixing ring is fixedly connected to the outer end of the connecting port of the gas cylinder body to provide a limit for the fastening position of the fixing member.

[0010] Preferably, the lifting mechanism includes a motor, which is installed at one end of the bottom of the support frame. The output shaft of the motor is connected to a two-way lead screw, and threaded sleeves are threaded to both ends of the surface of the two-way lead screw. A movable seat that slides between the screw sleeve and the support frame is fixedly connected to the outer wall of the threaded sleeve. Adjusting rods are movably connected to both ends of the movable seat through movable shafts. A movable seat is connected to the upper end of the adjusting rod, and the movable seat is installed on the lower surface of the mounting plate.

[0011] Preferably, the positioning mechanism includes a fixed base, on which positioning seats are fixedly connected at equal intervals. The lower surface of the gas cylinder body is disposed within the positioning seats, and the two ends of the positioning seats are fitted with clamps for fixing the position of the gas cylinder body by fastening components.

[0012] Preferably, the fastening assembly includes a positioning bolt, one end of which is fixed to a positioning seat. A through groove is provided on the mounting seat at a position corresponding to the positioning seat. The other end of the positioning bolt passes through the through groove and is threadedly connected to a fastening nut.

[0013] Preferably, the two ends of the movable seat are fixedly connected to sliders, and the bottom of the support frame is provided with a sliding groove at the position corresponding to the slider, and the slider is slidably connected in the sliding groove.

[0014] Preferably, two sets of limiting blocks are fixedly connected to both ends of the mounting plate, and a groove is formed between each set of limiting blocks. The mounting plate is movably connected to the support frame through the groove formed by the limiting blocks.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model provides a gas cylinder sealing test device. The test device is equipped with multiple test ports, each equipped with a detector, which can simultaneously perform multiple tests on the gas cylinder body, realize batch testing operations, and significantly improve the efficiency of the test device. At the same time, the lifting mechanism can be adjusted according to the height of the gas cylinder and, together with the positioning mechanism, can be fixed and adjusted according to the thickness of the gas cylinder body, which greatly improves the versatility and applicability of the device. It shows that the test device can be adjusted according to the size of the gas cylinder, while preventing the gas cylinder from shaking during the test, further ensuring the accuracy of the test results.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the support frame, positioning mechanism, and lifting mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the lifting mechanism structure of this utility model;

[0021] Figure 4 This is an exploded view of the positioning mechanism structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the testing equipment, connecting components, and main structure of the gas cylinder of this utility model.

[0023] The following are the labeling elements in the diagram: 1. Support frame; 2. Gas cylinder body; 3. Detection equipment; 4. Detection port; 5. Detector; 6. Connecting assembly; 61. Threaded sleeve; 62. Fixing component; 63. Fixing ring; 7. Lifting mechanism; 71. Motor; 72. Double-acting screw; 73. Screw sleeve; 74. Moving seat; 75. Adjusting rod; 76. Movable seat; 8. Mounting plate; 9. Positioning mechanism; 91. Fixed seat; 92. Positioning seat; 93. Fastening assembly; 931. Positioning bolt; 932. Through groove; 933. Fastening nut; 94. Card seat; 10. Slider; 11. Slide groove; 12. Limit block. Detailed Implementation

[0024] 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.

[0025] This utility model provides, for example Figures 1-5 The device shown is a gas cylinder sealing test device, including a support frame 1 and a gas cylinder body 2. A testing device 3 for sealing the gas cylinder body 2 is installed on the top of the support frame 1. The testing device 3 has multiple testing ports 4, each equipped with a detector 5 for testing the gas cylinder seal. The lower end of the testing port 4 is fixedly connected to the connection port of the gas cylinder body 2 via a connecting assembly 6 to facilitate gas delivery inside the gas cylinder body 2. The testing device 3 is mounted on the top of the support frame 1, with multiple testing ports 4 each equipped with a detector 5. The multiple testing ports 4 allow for batch testing of the gas cylinder body 2, improving testing efficiency. The testing device 3 uses a gas-testing type airtightness tester. The gas-testing type airtightness tester securely connects the gas cylinder body 2 to the testing port 4 via the connecting assembly 6, ensuring a good seal at the connection point. After connection, the tester uses gas... The system fills the gas cylinder body 2 with gas at a certain pressure, such as clean and dry compressed air. This pressure value is usually preset according to the design requirements and testing standards of the gas cylinder body 2. After the internal pressure of the gas cylinder body 2 stabilizes, the testing machine enters the critical pressure monitoring stage. Through the controller set at one end of the mounting plate 8, the detector 5 (pressure sensor and flow sensor) continuously collects the pressure and flow rate change data inside the gas cylinder within the set testing time. If there is a sealing defect in the gas cylinder, the gas will escape from the leak, causing the internal pressure of the gas cylinder body 2 to drop and the gas flow rate to change. Conversely, if the gas cylinder body 2 is well sealed, the internal pressure and gas flow rate will remain basically unchanged. The control system analyzes and processes the data based on the data fed back by the detector 5 (pressure sensor and flow sensor) and the preset leakage judgment criteria, thereby completing the testing of the gas cylinder body 2.

[0026] The bottom of the support frame 1 is provided with a lifting mechanism 7, and the top of the lifting mechanism 7 is fixedly connected with a mounting plate 8. The lifting mechanism 7 is used to adjust the position according to the height of the gas cylinder.

[0027] A positioning mechanism 9 is installed at the position corresponding to the lifting mechanism 7 and the gas cylinder body 2. The positioning mechanism 9 is used to fix and adjust according to the thickness of the gas cylinder body 2.

[0028] The connecting assembly 6 includes a threaded sleeve 61, which is fixed to the outer wall of the detection port 4 and located below the detector 5. The lower end of the detection port 4 is inserted into the gas cylinder body 2. A fastener 62 is threadedly connected to the surface of the threaded sleeve 61. A threaded groove is formed on the surface of the connection port of the gas cylinder body 2 to cooperate with the fastener 62. A retaining ring 63 is fixedly connected to the outer end of the connection port of the gas cylinder body 2 to limit the fastening position of the fastener 62. The threaded sleeve 61 is fixed to the outer wall of the detection port 4, the detection port 4 is inserted into the gas cylinder body 2, and the fastener 62 on the threaded sleeve 61 is screwed into the threaded groove of the gas cylinder connection port to fix the two. The retaining ring 63 at the outer end of the connection port of the gas cylinder body 2 limits the position of the fastener 62 to prevent it from being over-tightened or loosened, ensuring a stable connection between the detection device 3 and the gas cylinder body 2. This provides a reliable channel for gas transportation and sealing detection, ensures tight connection, reduces the risk of gas leakage, and makes the detection results more accurate. At the same time, this connection method facilitates quick assembly and disassembly of the gas cylinder, improves detection efficiency, and reduces the labor intensity of operators.

[0029] The lifting mechanism 7 includes a motor 71, which is installed at one end of the bottom of the support frame 1. The output shaft of the motor 71 is connected to a bidirectional lead screw 72. Both ends of the surface of the bidirectional lead screw 72 are threadedly connected to threaded sleeves 73. The outer wall of the threaded sleeves 73 is fixedly connected to a movable seat 74 that slides between the support frame 1. The two ends of the movable seat 74 are movably connected to adjusting rods 75 through movable shafts. The upper end of the adjusting rods 75 is connected to a movable seat 76, which is installed on the lower surface of the mounting plate 8. When the motor 71 is started, it drives the bidirectional lead screw 72 to rotate. The threaded sleeves 73 move in opposite directions on the lead screw due to the threaded transmission. The movable seat 74 slides and is guided in the slide groove 11 of the support frame 1 by means of a slider 10. The adjusting rods 75 on the movable seat 74 are linked to the movable seat 76 through the movable shaft, thereby driving the mounting plate 8 to lift and lower. This adapts to gas cylinders of different heights, adjusts the relative position of the testing equipment 3 and the gas cylinder, and achieves compatibility with gas cylinders of different heights without the need for additional equipment adaptation, expanding the applicability of the device. The automatic lifting and adjustment is simple and quick to operate, improving the flexibility of the testing work.

[0030] The positioning mechanism 9 includes a fixed base 91, on which positioning seats 92 are fixedly connected at equal intervals. The lower surface of the gas cylinder body 2 is disposed within the positioning seats 92. Both ends of the positioning seats 92 are fitted with clamping seats 94 for fixing the position of the gas cylinder body 2 via fastening components 93. The fastening components 93 include positioning bolts 931, one end of which is fixed to the positioning seat 92. A through groove 932 is formed on the clamping seat 94 at a position corresponding to the positioning seat 92. The other end of the positioning bolt 931 passes through the through groove 932 and is threadedly connected to a fastening nut 933. The lower surface of the gas cylinder body 2... The positioning seat 92 is placed inside the fixed seat 91. The two ends of the positioning seat 92 are mounted with clamping seats 94 through fastening components 93. One end of the positioning bolt 931 is fixed to the positioning seat 92, and the other end passes through the through groove 932 on the clamping seat 94. Tighten the fastening nut 933 so that the clamping seat 94 applies clamping force to the gas cylinder body 2. The tightness of the nut can be adjusted according to the size of the gas cylinder to achieve precise positioning and fixation of the gas cylinder. It can stably fix gas cylinders of different sizes, avoid the gas cylinder shaking or displacement during the test, and ensure the accuracy of the test data. The adjustable positioning design enhances the adaptability of the device to the specifications of the gas cylinder body 2.

[0031] The movable seat 74 is fixedly connected to two ends of sliders 10. The bottom of the support frame 1 is provided with a groove 11 corresponding to the slider 10. The slider 10 is slidably connected in the groove 11. The sliders 10 at both ends of the movable seat 74 are embedded in the groove 11 at the bottom of the support frame 1. When the lifting mechanism 7 is running, the sliders 10 slide in the groove 11, providing horizontal guidance and support for the movable seat 74, constraining the movement trajectory of the movable seat 74, ensuring its smooth movement, avoiding deviation or jamming, and making the lifting process smoother.

[0032] Two sets of limiting blocks 12 are fixedly connected to both ends of the mounting plate 8. A groove is formed between each set of limiting blocks 12. The mounting plate 8 is movably connected to the support frame 1 through the groove formed by the limiting blocks 12. The limiting blocks 12 at both ends of the mounting plate 8 form grooves and are movably connected to the support frame 1. During the lifting and lowering process of the mounting plate 8, the limiting blocks 12 physically restrict its range of movement. When the mounting plate 8 reaches the limit position, the limiting blocks 12 contact the support frame 1, preventing it from continuing to move and preventing the mounting plate 8 from detaching from the support frame 1, thus ensuring that the lifting operation is safe and controllable.

[0033] In practical use, when using this gas cylinder sealing test device, first place the gas cylinder body 2 in the positioning seat 92 of the positioning mechanism 9, and use the clamping seat 94 to clamp and fix the gas cylinder body 2 according to its thickness by adjusting the fastening nut 933 of the fastening component 93 to prevent shaking during the test. Then, start the motor 71 of the lifting mechanism 7, and the double-acting screw 72 drives the screw sleeve 73 to rotate, so that the moving seat 74 slides in the slide groove 11 through the slider 10. Through the linkage of the adjusting rod 75 and the movable seat 76, the mounting plate 8 is lifted and lowered, and the test device 3 is adjusted to a suitable height so that its test port 4 corresponds to the connection port of the gas cylinder body 2.

[0034] Subsequently, the testing device 3 is connected to the gas cylinder body 2 via the connecting component 6. The fixing part 62 on the threaded sleeve 61 is screwed into the threaded groove of the gas cylinder connection port, and the fixing ring 63 limits the fixing part 62 to ensure a tight connection. At this time, the testing device 3 (gas-testing type air tightness tester) fills the gas cylinder body 2 with clean and dry compressed air at a preset pressure through the gas circuit system. After the internal pressure stabilizes, the controller on the mounting plate 8 controls the detector 5 (pressure sensor and flow sensor) to collect the pressure and flow change data in the gas cylinder within a set time. If there is a sealing defect in the gas cylinder, the pressure drops and the flow changes; if the seal is good, the data remains basically unchanged. The control system can complete the accurate detection of the gas cylinder's sealing performance based on the feedback data and leakage judgment criteria. The whole process is efficient and convenient, and can realize batch testing of gas cylinders of different specifications, ensuring the accuracy and reliability of the test results.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas cylinder sealing test device, comprising a support frame (1) and a gas cylinder body (2), characterized in that: The top of the support frame (1) is provided with a detection device (3) for sealing detection of the gas cylinder body (2). The detection device (3) is provided with multiple detection ports (4). Each detection port (4) is equipped with a detector (5) for detecting the gas cylinder seal. The lower end of the detection port (4) is fixedly connected to the connection port of the gas cylinder body (2) through a connecting component (6) to facilitate the delivery of gas inside the gas cylinder body (2). The bottom of the support frame (1) is provided with a lifting mechanism (7), and the top of the lifting mechanism (7) is fixedly connected with an installation plate (8). The lifting mechanism (7) is used to adjust the position according to the height of the gas cylinder. The lifting mechanism (7) is equipped with a positioning mechanism (9) at the position corresponding to the gas cylinder body (2). The positioning mechanism (9) is used to fix and adjust according to the thickness of the gas cylinder body (2).

2. The gas cylinder sealing test device according to claim 1, characterized in that: The connecting assembly (6) includes a threaded sleeve (61), which is fixed to the outer wall of the detection port (4) and located below the detector (5). The lower end of the detection port (4) is inserted into the gas cylinder body (2). A fastener (62) is threadedly connected to the surface of the threaded sleeve (61). A threaded groove is provided on the surface of the connecting port of the gas cylinder body (2) to cooperate with the fastener (62). A fixing ring (63) is fixedly connected to the outer end of the connecting port of the gas cylinder body (2) to provide a limit for the fastening position of the fastener (62).

3. The gas cylinder sealing test device according to claim 2, characterized in that: The lifting mechanism (7) includes a motor (71), which is installed at one end of the bottom of the support frame (1). The output shaft of the motor (71) is connected to a two-way lead screw (72). Both ends of the surface of the two-way lead screw (72) are threaded with a screw sleeve (73). The outer wall of the screw sleeve (73) is fixedly connected to a movable seat (74) that slides between the support frame (1). Both ends of the movable seat (74) are movably connected to an adjusting rod (75) through a movable shaft. The upper end of the adjusting rod (75) is connected to a movable seat (76). The movable seat (76) is installed on the lower surface of the mounting plate (8).

4. The gas cylinder sealing test device according to claim 3, characterized in that: The positioning mechanism (9) includes a fixed seat (91), and a positioning seat (92) is fixedly connected at equal distances on the fixed seat (91). The lower surface of the gas cylinder body (2) is disposed in the positioning seat (92). The two ends of the positioning seat (92) are fitted with a clamp (94) for fixing the position of the gas cylinder body (2) by fastening components (93).

5. The gas cylinder sealing test device according to claim 4, characterized in that: The fastening assembly (93) includes a positioning bolt (931), one end of which is fixed to the positioning seat (92). A through groove (932) is provided on the card seat (94) at a position corresponding to the positioning seat (92). The other end of the positioning bolt (931) passes through the through groove (932) and is threadedly connected to a fastening nut (933).

6. The gas cylinder sealing test device according to claim 3, characterized in that: The movable seat (74) is fixedly connected to two sliders (10) at both ends. The bottom of the support frame (1) is provided with a groove (11) corresponding to the slider (10). The slider (10) is slidably connected in the groove (11).

7. The gas cylinder sealing test device according to claim 1, characterized in that: The mounting plate (8) is fixedly connected to two sets of limiting blocks (12) at both ends. A groove is formed between each set of limiting blocks (12). The mounting plate (8) is movably connected to the support frame (1) through the groove formed by the limiting blocks (12).

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