Pipeline sealing performance detection device for nitrogen conveying

Abstract

The utility model belongs to the technical field of nitrogen detection, and particularly relates to a pipeline sealing performance detection device for nitrogen conveying, which is characterized in that a first horizontal gear, a second horizontal gear, a square rod, a first connecting screw rod and a second connecting screw rod are arranged, and when the device is mounted, a second pipe sleeve is tightly attached to one side of a pipeline; by rotating a second horizontal gear on one side, a first horizontal gear and a second horizontal gear on the other side synchronously rotate, so that a square rod and a round rod are driven to rotate, a first connecting screw rod and a second connecting screw rod rotate, the first connecting screw rod and the second connecting screw rod are pressed downwards, and therefore a first pipe sleeve and a second pipe sleeve can be tightly attached; the first connecting screw rod and the second connecting screw rod are reversely rotated, so that the first connecting screw rod is lifted to be away from the second pipeline, the conveying pipe can be directly sleeved with the first connecting screw rod for installation during installation, the device can be assembled and disassembled only by screwing one screw rod, and the assembling and disassembling convenience of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen detection technology, specifically a device for detecting the sealing performance of pipelines used for nitrogen transportation. Background Technology

[0002] In the tobacco industry, a series of pest control and preservation measures are typically implemented to prevent tobacco raw materials from being damaged by insects and mold during storage. Traditional methods may include fumigation with chemical agents, but these methods often result in environmental pollution and residue problems. Therefore, nitrogen fumigation, as a safe and environmentally friendly physical method of pest control, has gradually been adopted in the tobacco industry. However, if nitrogen leaks during transportation, it can displace oxygen in the air, significantly reducing the oxygen content. This can lead to insufficient oxygen in the air inhaled by people, potentially causing hypoxic asphyxiation.

[0003] During nitrogen fumigation, it is necessary to perform a seal test on the nitrogen delivery pipeline to prevent nitrogen leakage during delivery. The existing nitrogen delivery pipeline seal test device requires first fitting a sleeve onto the connection port of the delivery pipe, then inserting one side of the delivery pipe into the sleeve to connect with the other side of the delivery pipe, and then tightening multiple bolts to fix the sleeve to the connection of the nitrogen pipeline. This makes the installation cumbersome and inconvenient, reducing its ease of installation. Therefore, to address the above problems, a new seal test device for nitrogen delivery pipelines is proposed. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A pipeline sealing test device for nitrogen transportation, comprising a first sleeve, a test component disposed on the outer side of the first sleeve, a first spur gear rotatably connected to the outer side of the test component, a second spur gear meshing with the outer side of the first spur gear, a support plate fixedly connected to the outer side of the test component, the second spur gear and the support plate rotatably connected, a square rod fixedly connected to the outer side of one side of the second spur gear, a first connecting screw slidably connected to the outer side of the square rod, the first connecting screw and the first sleeve being threadedly connected, a second sleeve threadedly connected to the outer side of the first connecting screw, a second connecting screw threadedly connected to the inner side of the second sleeve, the second connecting screw and the first sleeve rotatably connected, and a round rod fixedly connected to the outer side of the second connecting screw. The device is rotatably connected to the first sleeve, and the second flat gear and round rod on one side are fixedly connected. This step involves setting up the first flat gear, the second flat gear, the square rod, the first connecting screw, and the second connecting screw. During installation, the second sleeve is pressed against one side of the pipe. By rotating the second flat gear on one side, the first flat gear and the second flat gear on the other side rotate synchronously, thereby driving the square rod and round rod to rotate, causing the first connecting screw and the second connecting screw to rotate and press down, so that the first sleeve and the second sleeve can be tightly fitted. During disassembly, the first connecting screw and the second connecting screw are reversed, causing the first connecting screw to rise away from the second pipe. This allows the device to be directly fitted onto the outside of the delivery pipe for installation, and only one screw needs to be turned to install and disassemble the device, improving the convenience of installation and disassembly.

[0006] Preferably, a rotating block is fixedly connected to the outer side of the second spur gear on one side, an insert rod is slidably connected to the outer side of the rotating block, a telescopic rod is fixedly connected to the outer side of the insert rod, and a tension spring is fixedly connected to the outer side of the telescopic rod. The tension spring is fixedly connected to the support plate. By setting up the rotating block, insert rod, and tension spring, when the second spur gear needs to be rotated, the user can use a tool to twist the rotating block, thereby facilitating the rotation of the second spur gear. After use, the insert rod can be rotated to align with the rotating block, so that the insert rod is inserted into the inner side of the rotating block under the pull of the tension spring, thereby fixing the position of the rotating block, making the installation of the device more stable and improving the stability of the device.

[0007] Preferably, a sealing plate is fixedly connected to the outer side of the first sleeve, and a sealing groove is fixedly connected to the inner side of the second sleeve. The sealing plate and the sealing groove are slidably connected. This step, by setting the sealing plate and the sealing groove, allows the sealing plate to be inserted into the sealing groove to further seal the first sleeve and the second sleeve assembly when they are connected and sealed, thereby improving the sealing performance of the device.

[0008] Preferably, a first limiting plate is fixedly connected to the outer side of the first connecting screw, and a second limiting plate is fixedly connected to the outer side of the second connecting screw. By setting the first limiting plate and the second limiting plate, when the first connecting screw moves to contact the first sleeve and the second sleeve moves down, the first limiting plate and the second limiting plate can further restrict the range of motion of the first connecting screw and the second sleeve, thereby improving the stability of the device operation.

[0009] Preferably, a limiting rod is fixedly connected to the outside of the first sleeve, and the limiting rod is slidably connected to the second sleeve. This step, by setting the limiting rod, allows the movement trajectory of the second sleeve to be further restricted when it moves up and down, thereby improving the stability of the device operation.

[0010] Preferably, a first sealing ring is fixedly connected to the outer side of the first sleeve, and a second sealing ring is fixedly connected to the outer side of the second sleeve. By setting the first and second sealing rings, when the first and second sleeves are joined together, the first and second sealing rings can be further connected, thereby further sealing the first and second sleeves and the pipeline, and improving the sealing performance of the device.

[0011] The advantages of this utility model are:

[0012] 1. This utility model, by setting a first flat gear, a second flat gear, a square rod, a first connecting screw, and a second connecting screw, allows the second sleeve to be tightly fitted against one side of the pipe during installation. By rotating one side of the second flat gear, the first flat gear and the other side of the second flat gear rotate synchronously, thereby driving the square rod and the round rod to rotate, causing the first connecting screw and the second connecting screw to rotate and press down, thus allowing the first sleeve and the second sleeve to fit tightly together. During disassembly, the first connecting screw and the second connecting screw are reversed, causing the first connecting screw to rise away from the second pipe. This allows the device to be directly fitted onto the outside of the conveying pipe for installation, and only one screw needs to be turned to install and disassemble the device, improving the convenience of installation and disassembly.

[0013] 2. By setting up a rotating block, a plug rod, and a tension spring, this utility model allows the user to rotate the second flat gear when it is necessary to rotate it. The user can use a tool to twist the rotating block to drive the second flat gear to rotate. After use, the plug rod can be rotated to align with the rotating block, so that the plug rod is inserted into the inside of the rotating block under the pull of the tension spring, thereby fixing the position of the rotating block. This makes the installation of the device more stable and improves the stability of the device. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a front view of the structure in this utility model;

[0016] Figure 2 This is a bottom view of the structure in this utility model;

[0017] Figure 3 This is a schematic diagram of the sealing plate structure in this utility model;

[0018] Figure 4 This is a schematic diagram of the first spur gear structure in this utility model;

[0019] Figure 5 This is a schematic diagram of the telescopic rod structure in this utility model.

[0020] In the diagram: 1. First sleeve; 2. Detection assembly; 3. First spur gear; 4. Second spur gear; 5. Support plate; 6. Square rod; 7. First connecting screw; 8. Second sleeve; 9. Second connecting screw; 10. Round rod; 11. Rotating block; 12. Insert rod; 13. Telescopic rod; 14. Tension spring; 15. Sealing plate; 16. Sealing groove; 17. First limiting plate; 18. Second limiting plate; 19. Limiting rod; 20. First sealing ring; 21. Second sealing ring. Detailed Implementation

[0021] 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 scope of protection of the present utility model.

[0022] Specific implementation examples are given below.

[0023] Please see Figure 1-4As shown, a pipeline sealing test device for nitrogen transportation includes a first sleeve 1. A test component 2 is disposed on the outside of the first sleeve 1. A first spur gear 3 is rotatably connected to the outside of the test component 2. A second spur gear 4 meshes with the outside of the first spur gear 3. A support plate 5 is fixedly connected to the outside of the test component 2. The second spur gear 4 and the support plate 5 are rotatably connected. A square rod 6 is fixedly connected to the outside of the second spur gear 4 on one side. A first connecting screw 7 is slidably connected to the outside of the square rod 6. The first connecting screw 7 is threadedly connected to the first sleeve 1. A second sleeve 8 is threadedly connected to the outside of the first connecting screw 7. A second connecting screw 9 is threadedly connected to the inside of the second sleeve 8. The second connecting screw 9 is rotatably connected to the first sleeve 1. A round rod 10 is fixedly connected to the outside of the second connecting screw 9. The round rod 10 is rotatably connected to the first sleeve 1. The second spur gear 4 and the round rod 10 are fixedly connected. This step involves setting up the first spur gear 3, the second spur gear 4, the square rod 6, the first connecting screw 7, and the second connecting screw 9. During installation, the second sleeve 8 is pressed against one side of the pipe. By rotating one side of the second spur gear 4, the first spur gear 3 and the other side of the second spur gear 4 rotate synchronously, thereby driving the square rod 6 and the round rod 10 to rotate, causing the first connecting screw 7 and the second connecting screw 9 to rotate. This causes the first connecting screw 7 and the second connecting screw 9 to press down, allowing the first sleeve 1 and the second sleeve 8 to fit tightly together. During disassembly, the first connecting screw 7 and the second connecting screw 9 are reversed, causing the first connecting screw 7 to rise away from the second pipe 8. This allows the device to be directly fitted onto the outside of the delivery pipe for installation, and only one screw needs to be turned to install and disassemble the device, improving the convenience of installation and disassembly.

[0024] Furthermore, such as Figure 1 and Figure 5 As shown, a rotating block 11 is fixedly connected to the outer side of the second spur gear 4 on one side. A plug rod 12 is slidably connected to the outer side of the rotating block 11. A telescopic rod 13 is fixedly connected to the outer side of the plug rod 12. A tension spring 14 is fixedly connected to the outer side of the telescopic rod 13. The tension spring 14 is fixedly connected to the support plate 5. By setting up the rotating block 11, plug rod 12 and tension spring 14, when the second spur gear 4 needs to be rotated, the user can use a tool to twist the rotating block 11, which facilitates driving the second spur gear 4 to rotate. After use, the plug rod 12 can be rotated to align with the rotating block 11, so that the plug rod 12 is inserted into the inner side of the rotating block 11 under the pull of the tension spring 14, thereby fixing the position of the rotating block 11, making the installation of the device more stable and improving the stability of the device.

[0025] Furthermore, such as Figure 3As shown, a sealing plate 15 is fixedly connected to the outer side of the first sleeve 1, and a sealing groove 16 is fixedly connected to the inner side of the second sleeve 8. The sealing plate 15 and the sealing groove 16 are slidably connected. This step, by setting the sealing plate 15 and the sealing groove 16, allows the sealing plate 15 to be inserted into the inner side of the sealing groove 16 to further seal the first sleeve 1 and the second sleeve 8 assembly when the first sleeve 1 and the second sleeve 8 are connected and sealed, thereby improving the sealing performance of the device.

[0026] Furthermore, such as Figure 1 As shown, a first limiting plate 17 is fixedly connected to the outside of the first connecting screw 7, and a second limiting plate 18 is fixedly connected to the outside of the second connecting screw 9. By setting the first limiting plate 17 and the second limiting plate 18, when the first connecting screw 7 moves to contact the first sleeve 1 and the second sleeve 8 moves down, the first limiting plate 17 and the second limiting plate 18 can further restrict the range of motion of the first connecting screw 7 and the second sleeve 8, thereby improving the stability of the device operation.

[0027] Furthermore, such as Figure 2 As shown, a limiting rod 19 is fixedly connected to the outside of the first sleeve 1, and the limiting rod 19 is slidably connected to the second sleeve 8. This step, by setting the limiting rod 19, allows the movement trajectory of the second sleeve 8 to be further restricted when it moves up and down, thereby improving the stability of the device operation.

[0028] Furthermore, such as Figure 1 As shown, a first sealing ring 20 is fixedly connected to the outside of the first sleeve 1, and a second sealing ring 21 is fixedly connected to the outside of the second sleeve 8. By setting the first sealing ring 20 and the second sealing ring 21, when the first sleeve 1 and the second sleeve 8 are combined, the first sealing ring 20 and the second sealing ring 21 can be further connected, thereby further sealing the first sleeve 1, the second sleeve 8 and the pipeline, and improving the sealing performance of the device.

[0029] The working principle is as follows: the second sleeve 8 is pressed tightly against one side of the pipe. By rotating the second flat gear 4 on one side, the first flat gear 3 and the second flat gear 4 on the other side rotate synchronously, thereby driving the square rod 6 and the round rod 10 to rotate, causing the first connecting screw 7 and the second connecting screw 9 to rotate, so that the second sleeve 8 is raised. Through the threaded connection between the first connecting screw 7 and the first sleeve 1, the first connecting screw 7 is screwed downward and then screwed into the inside of the second sleeve 8, so that the second sleeve 8 and the first sleeve 1 are tightly pressed together.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A device for testing the sealing performance of a pipeline for nitrogen transportation, comprising a first sleeve (1), characterized in that: a detection component (2) is provided on the outside of the first sleeve (1), a first spur gear (3) is rotatably connected to the outside of the detection component (2), a second spur gear (4) meshes with the outside of the first spur gear (3), a support plate (5) is fixedly connected to the outside of the detection component (2), the second spur gear (4) and the support plate (5) are rotatably connected, and a square rod (6) is fixedly connected to the outside of one side of the second spur gear (4), the square rod (6) being... A first connecting screw (7) is slidably connected to the side. The first connecting screw (7) and the first sleeve (1) are threadedly connected. A second sleeve (8) is threadedly connected to the outside of the first connecting screw (7). A second connecting screw (9) is threadedly connected to the inside of the second sleeve (8). The second connecting screw (9) and the first sleeve (1) are rotatably connected. A round rod (10) is fixedly connected to the outside of the second connecting screw (9). The round rod (10) and the first sleeve (1) are rotatably connected. A second flat gear (4) on one side is fixedly connected to the round rod (10).

2. The device for testing the sealing performance of a pipeline for nitrogen transportation according to claim 1, characterized in that: A rotating block (11) is fixedly connected to the outer side of the second flat gear (4) on one side. A plug rod (12) is slidably connected to the outer side of the rotating block (11). A telescopic rod (13) is fixedly connected to the outer side of the plug rod (12). A tension spring (14) is fixedly connected to the outer side of the telescopic rod (13). The tension spring (14) is fixedly connected to the support plate (5).

3. The device for testing the sealing performance of a pipeline for nitrogen transportation according to claim 2, characterized in that: A sealing plate (15) is fixedly connected to the outside of the first sleeve (1), and a sealing groove (16) is fixedly connected to the inside of the second sleeve (8). The sealing plate (15) and the sealing groove (16) are slidably connected.

4. The device for testing the sealing performance of a pipeline for nitrogen transportation according to claim 3, characterized in that: A first limiting plate (17) is fixedly connected to the outside of the first connecting screw (7), and a second limiting plate (18) is fixedly connected to the outside of the second connecting screw (9).

5. A device for testing the sealing performance of a pipeline for nitrogen transportation according to claim 4, characterized in that: A limiting rod (19) is fixedly connected to the outside of the first sleeve (1), and the limiting rod (19) is slidably connected to the second sleeve (8).

6. The device for testing the sealing performance of a pipeline for nitrogen transportation according to claim 5, characterized in that: The first sleeve (1) is fixedly connected to the outside of a first sealing ring (20), and the second sleeve (8) is fixedly connected to the outside of a second sealing ring (21).

Images