A gas purity detection device

Abstract

This utility model belongs to the field of gas detection and provides a gas purity detection device, including a gas detector. A detection head is located at the bottom of the gas detector, and a shape memory metal strip is movably mounted below the detection head. A guide mechanism is provided at the bottom edge of the detection head for guiding and supporting the shape memory metal strip. A movable kit is fitted onto one side of the outer surface of the shape memory metal strip. A support rod is fixedly mounted on the top of one side of the movable kit, and an elastic strap is installed on one side of the outer surface of the support rod. A fixing hole is provided through the bottom of one side of the movable kit. This utility model utilizes the shape memory function of the shape memory metal strip to manually bend it to a suitable shape and position, allowing the connecting tube to adjust synchronously with the shape memory metal strip. This avoids the problems of the gas tube naturally drooping, bending, or twisting, ensuring that the gas tube is in the optimal placement state and guaranteeing smooth gas delivery, thereby improving the accuracy of gas purity detection and the efficiency of the device.

Description

Technical Field

[0001] This utility model belongs to the field of gas detection, specifically a gas purity detection device. Background Technology

[0002] A gas detector is a process analysis instrument used to measure parameters such as gas composition, concentration, and purity. It has wide applications in numerous gas-related production processes, environmental monitoring, and safety protection. Based on different analytical principles, common gas detectors include thermal conductivity type, electrochemical type, and infrared absorption type. Their working principle involves using appropriate sensors to sense the physical or chemical properties of specific gases, converting gas parameters into electrical signals or other identifiable signals, and then processing and displaying relevant gas information.

[0003] In industrial production, gas purity is a key indicator for measuring gas quality. Currently, there is a lack of effective fixing measures when the bottom detection head of a gas detector is connected to the gas tube. This allows the gas tube to droop naturally after connection, affecting not only the overall layout but also potentially causing bending and twisting, obstructing the smooth flow of gas and thus affecting the accuracy of the gas detector in detecting gas purity. Furthermore, when there are space constraints in the detection environment, the placement and state of the gas tube cannot be flexibly adjusted, making it difficult to adapt to complex and changing detection scenarios. This further reduces the efficiency of the gas detector and adversely affects the gas purity detection effect, failing to meet the needs of efficient and accurate detection in actual production and testing work. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a gas purity detection device to solve the problem that existing gas purity detectors are not convenient for adjusting the placement of the gas tube.

[0005] A gas purity detection device includes a gas detector, a detection head is provided at the bottom of the gas detector, a shape memory metal strip is movably installed below the detection head, and a guide mechanism is provided at the bottom edge of the detection head for guiding and supporting the shape memory metal strip.

[0006] A movable kit is fitted onto one side of the outer surface of the memory metal strip. A support rod is fixedly installed on the top of one side of the movable kit. An elastic strap is installed on one side of the outer surface of the support rod. A fixing hole is opened through the bottom of one side of the movable kit. An elastic clip is fixedly installed at the bottom of the inner wall of the fixing hole.

[0007] A connecting component is also installed below the detection head for delivering the detection gas.

[0008] Preferably, the guiding mechanism includes a fixed guide rail, which is fixedly installed at the bottom edge of the detection head. A guide groove is provided at the bottom end of the fixed guide rail. A fixing plate is fixedly installed at the top end of the memory metal strip. Guide sliders are symmetrically welded to the upper surface of the fixing plate extending into the guide groove.

[0009] Preferably, the connecting assembly includes a connector, which is installed at the bottom of the connector port. The outer surface of the connector is provided with an external thread, and the bottom of the connector port is provided with an internal thread that matches the outer surface of the connector. A connecting pipe is fixedly installed at the bottom of the connector.

[0010] Preferably, the upper surface of the fixed plate is provided with limiters near the inner and outer walls of the fixed guide rail, the outer surface of the limiters abuts against the fixed guide rail, and the fixed guide rail and the limiters engage with each other.

[0011] Preferably, a through hole is provided in the middle of one end of the active kit, and one side of the outer surface of the memory metal strip is located in the through hole, with the memory metal strip and the through hole interlocking.

[0012] Preferably, one side of the outer surface of the elastic strap is located inside the fixing hole, and the upper and lower ends of the elastic strap abut against the top of the inner wall of the fixing hole and the outer surface of the elastic clip, respectively, and the elastic strap is snapped and fixed inside the fixing hole.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model utilizes the shape memory function of the memory metal strip, allowing operators to manually bend the memory metal strip to a suitable shape and position according to the space constraints and layout requirements of the actual testing scenario. The movable kit can move flexibly on the memory metal strip, and the support rod and elastic strap installed on it can easily tie and fix the trachea. When it is necessary to adjust the position of the trachea, simply move the position of the movable kit on the memory metal strip, or bend the memory metal strip again. This avoids the problem of the trachea naturally drooping, bending, or twisting, ensuring that the trachea can be in the optimal placement state, guaranteeing smooth gas delivery, thereby improving the accuracy of gas purity detection and the efficiency of the device.

[0015] 2. This utility model utilizes the cooperation between the fixed guide rail and the guide slider on the fixed plate in the guiding mechanism, as well as the limiting clips, to ensure that the shape memory metal strip maintains stable guidance and positioning during movement, preventing it from easily shaking or detaching. Simultaneously, the connector and connection port in the connecting assembly are connected by threads, ensuring a secure connection and effectively preventing gas leakage, thus guaranteeing a stable delivery of the detection gas. This structural design enhances the stability and reliability of the entire gas purity detection device, reduces detection errors and equipment malfunctions caused by loose components or loose connections, and extends the device's service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the fixed guide rail structure in this utility model;

[0018] Figure 3 This is a schematic diagram of the shape memory metal strip in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the movable kit in this utility model.

[0020] In the picture:

[0021] 1. Gas detector; 2. Detector head; 3. Connector port; 4. Connector head; 5. Connecting pipe; 6. Memory metal strip; 7. Movable kit; 8. Support rod; 9. Elastic strap; 10. Fixing hole; 11. Elastic block; 12. Fixing guide rail; 13. Guide groove; 14. Fixing plate; 15. Guide slider; 16. Limiting clip. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] Example 1:

[0024] As attached Figure 1 To be continued Figure 4 As shown:

[0025] This utility model provides a gas purity detection device, including a gas detector 1, a detection head 2 at the bottom of the gas detector 1, a shape memory metal strip 6 movably installed below the detection head 2, and a guide mechanism at the bottom edge of the detection head 2 for guiding and supporting the shape memory metal strip 6.

[0026] A movable kit 7 is fitted onto one side of the outer surface of the memory metal strip 6. A through hole is opened in the middle of one end of the movable kit 7. One side of the outer surface of the memory metal strip 6 is located in the through hole. The memory metal strip 6 and the through hole are interlocked. A support rod 8 is fixedly installed on the top of one side of the movable kit 7. An elastic strap 9 is installed on one side of the outer surface of the support rod 8. A fixing hole 10 is opened through the bottom of one side of the movable kit 7. An elastic block 11 is fixedly installed at the bottom of the inner wall of the fixing hole 10. One side of the outer surface of the elastic strap 9 is located inside the fixing hole 10. The upper and lower ends of the elastic strap 9 abut against the top of the inner wall of the fixing hole 10 and the outer surface of the elastic block 11, respectively. The elastic strap 9 is snapped and fixed inside the fixing hole 10.

[0027] A connecting component is also installed below the detection head 2 for conveying the detection gas.

[0028] As can be seen from the above, during use, the operator first manually bends the shape memory metal strip 6 according to the testing environment and the required position of the trachea, adjusting it to a suitable shape and position using its shape memory function. Next, the movable kit 7 is fitted onto the shape memory metal strip 6 through its internal through-hole, and the movable kit 7 is moved to the appropriate position along the shape memory metal strip 6 according to the specific position of the trachea. Then, the trachea is placed between the support rod 8 and the elastic strap 9, and the elastic strap 9 is used to securely bind the trachea to the support rod 8 using its elasticity. Because the elastic strap 9 is snapped into the fixing hole 10 at the bottom of the movable kit 7, and its upper and lower ends abut against the top of the inner wall of the fixing hole 10 and the outer surface of the elastic clip 11 respectively, the trachea is stably fixed, preventing it from drooping or swaying freely. During this process, the connector 4 of the connecting component engages with the internal thread of the connecting port 3 below the detection head 2 through its external thread, securely installing the connecting tube 5 below the detection head 2 for delivering the testing gas.

[0029] Reference Figure 1 and Figure 2 The connecting component includes a connector 4, which is installed at the bottom of the connector 3. The outer surface of the connector 4 has an external thread, and the bottom of the connector 3 has an internal thread that matches the outer surface of the connector 4. A connecting pipe 5 is fixedly installed at the bottom of the connector 4.

[0030] As shown above, when installing the connecting pipe 5, the operator first aligns the connector 4 with the connector port 3, then rotates the connector 4 clockwise to ensure that the external thread on the outer surface of the connector 4 tightly engages with the internal thread at the bottom of the connector port 3. Because the threaded connection provides good tightness, it ensures a secure connection between the connector 4 and the connector port 3, preventing gas leakage at the connection point. The connecting pipe 5, fixedly installed at the bottom of the connector 4, is then stably connected to the detection head 2, providing a reliable channel for gas delivery and ensuring the smooth operation of gas purity testing.

[0031] Example 2:

[0032] Reference Figure 2 and Figure 3 The guiding mechanism includes a fixed guide rail 12, which is fixedly installed at the bottom edge of the detection head 2. A guide groove 13 is provided at the bottom end of the fixed guide rail 12. A fixed plate 14 is fixedly installed at the top end of the memory metal strip 6. Guide sliders 15 are symmetrically welded to the upper surface of the fixed plate 14 extending into the guide groove 13. Limiting clips 16 are provided on the upper surface of the fixed plate 14 near the inner and outer walls of the fixed guide rail 12. The outer surface of the limiting clips 16 abuts against the fixed guide rail 12, and the fixed guide rail 12 and the limiting clips 16 are engaged with each other.

[0033] As can be seen from the above, the guiding mechanism of this utility model can provide stable guidance and positioning for the memory metal strip 6. When installing the memory metal strip 6, first align the guide slider 15 on the fixing plate 14 at the top of the memory metal strip 6 with the guide groove 13 at the bottom of the fixed guide rail 12, and then insert the fixing plate 14 into the guide groove 13, so that the guide slider 15 slides within the guide groove 13. At the same time, the limiting clip 16 on the fixing plate 14 will engage with the inner and outer walls of the fixed guide rail 12, restricting the lateral movement of the memory metal strip 6 on the fixed guide rail 12, ensuring that the memory metal strip 6 can only move up and down or back and forth along the direction of the guide groove 13. In this way, during subsequent use, the memory metal strip 6 can maintain a stable position and movement trajectory, providing reliable support for the fixation and adjustment of the movable kit 7 and the air tube.

[0034] Working principle: The shape memory metal strip 6 has a shape memory function, allowing it to be manually bent into the desired shape and held at room temperature. Operators can bend it to the appropriate position according to the actual testing scenario, and then adjust the position of the support rod 8 and elastic strap 9 by moving the movable kit 7 on the shape memory metal strip 6. When it is necessary to fix the trachea, the elastic strap 9 is used to securely fasten the trachea to the support rod 8. Simultaneously, by changing the shape of the shape memory metal strip 6 and the position of the movable kit 7, the placement and state of the trachea can be flexibly adjusted to adapt to different testing environments and space constraints, ensuring smooth gas delivery within the trachea and providing a stable gas source for gas purity testing.

[0035] The fixed guide rail 12 is fixedly installed on the bottom edge of the detection head 2. The guide groove 13 at its bottom end cooperates with the guide slider 15 on the top fixing plate 14 of the shape memory metal strip 6 to provide guidance for the movement of the shape memory metal strip 6. At the same time, the engagement of the limiting clip 16 with the fixed guide rail 12 further enhances the stability of the shape memory metal strip 6. In the connection assembly, the connector 4 is screwed into the internal thread of the connector 3 through the external thread to achieve a stable connection between the connecting pipe 5 and the detection head 2, ensuring that the detection gas can be safely and stably delivered to the detection head 2 for purity detection, thus ensuring the reliability and accuracy of the entire device.

[0036] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A gas purity detection device, comprising a gas detector (1), wherein a detection head (2) is arranged at the bottom end of the gas detector (1), characterized in that: A memory metal strip (6) is movably installed below the detection head (2), and a guide mechanism is provided at the bottom edge of the detection head (2) for guiding and supporting the memory metal strip (6); The memory metal strip (6) has a movable kit (7) fitted on one side of its outer surface. A support rod (8) is fixedly installed on the top of one side of the movable kit (7). An elastic strap (9) is installed on one side of the outer surface of the support rod (8). A fixing hole (10) is opened through the bottom of one side of the movable kit (7). An elastic clip (11) is fixedly installed on the bottom of the inner wall of the fixing hole (10). A connecting component is also installed below the detection head (2) for conveying detection gas.

2. The gas purity detection device of claim 1, wherein: The guiding mechanism includes a fixed guide rail (12), which is fixedly installed at the bottom edge of the detection head (2). A guide groove (13) is provided at the bottom of the fixed guide rail (12). A fixing plate (14) is fixedly installed at the top of the memory metal strip (6). A guide slider (15) is symmetrically welded to the upper surface of the fixing plate (14) extending into the guide groove (13).

3. The gas purity detection device of claim 1, wherein: The connecting assembly includes a connector (4), which is installed at the bottom of the connector (3). The outer surface of the connector (4) is provided with an external thread, and the bottom of the connector (3) is provided with an internal thread that is adapted to the outer surface of the connector (4). A connecting pipe (5) is fixedly installed at the bottom of the connector (4).

4. The gas purity detection device of claim 2, wherein: Limiting clips (16) are provided on the upper surface of the fixed plate (14) near the inner and outer walls of the fixed guide rail (12). The outer surface of the limiting clips (16) abuts against the fixed guide rail (12), and the fixed guide rail (12) and the limiting clips (16) engage with each other.

5. The gas purity detection device of claim 1, wherein: The active kit (7) has a through hole in the middle of one end, and one side of the outer surface of the memory metal strip (6) is located in the through hole. The memory metal strip (6) and the through hole are interlocked.

6. The gas purity detection device of claim 1, wherein: The outer surface of the elastic strap (9) is located inside the fixing hole (10). The upper and lower ends of the elastic strap (9) abut against the top of the inner wall of the fixing hole (10) and the outer surface of the elastic clip (11), respectively. The elastic strap (9) is snapped and fixed inside the fixing hole (10).

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