FID (Flame Ionization Detector) ignition wire fixing device

Abstract

The utility model provides an FID (Flame Ionization Detector) ignition wire fixing device which comprises a sleeve, two fixing components and a pushing component, the two fixing components extend into the sleeve, a plurality of resetting components for resetting the two fixing components are arranged on the opposite sides of the two fixing components, and the pushing component is arranged on the sleeve. Extrusion blocks are arranged on the adjacent sides of the two fixing assemblies in a staggered mode, fixing grooves are further formed in the adjacent sides of the two fixing assemblies, and a pushing assembly is arranged between the two fixing assemblies. When a pushing block rotates, two fixing assemblies are pushed to move, extrusion blocks arranged on one sides of the two fixing assemblies can be separated from two fixing grooves correspondingly, the pushing block is rotated by 90 degrees again, at the moment, the two fixing assemblies can reset under the action of reset assemblies, and the ignition wire body is extruded in a staggered mode through the two extrusion blocks; more uniform fixing force can be provided, the risk that the ignition wire is loosened or broken due to non-uniform force is reduced, and the ignition performance of the FID detector is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of ignition wire fixing equipment, and in particular to an ignition wire fixing device for an FID detector. Background Technology

[0002] The FID detector, or flame ionization detector, is a commonly used gas chromatography detector. The ignition wire material of an FID detector is typically either platinum or thalassium. Both materials possess excellent conductivity and high-temperature resistance, remaining stable in high-temperature and flame environments, thus ensuring a smooth ignition process. The main function of the ignition wire is to control the igniter to produce a flame. In an FID detector, when the ignition wire is energized, it generates high temperatures and ignites the hydrogen-air mixture, forming a hydrogen flame. Organic matter burns in the hydrogen flame, producing carbocations. These ions form an ion current under the influence of an electric field. Based on the intensity of the electrical signal generated by this ion current, the components separated by the chromatographic column can be detected.

[0003] In the existing method of installing the ignition wire body into the detector body, the ignition wire body is extended into the detector body and fixed by rotating a bolt. However, in the use of existing equipment, the bolt rotation and compression fixing method may cause the ignition wire body to loosen or break during long-term use. Once the ignition wire body loosens or breaks, it will directly affect the ignition performance of the FID detector. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an ignition wire fixing device for an FID detector.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an ignition wire fixing device for an FID detector, which is used to fix the ignition wire body. The device is disposed on one side of the detector body and includes a sleeve, a fixing component, and a pushing component. Two fixing components are provided, and the two fixing components extend into the interior of the sleeve. Multiple reset components for resetting the two fixing components are provided on the opposite sides of the two fixing components. Squeezing blocks are respectively staggered on the adjacent sides of the two fixing components, and fixing grooves are also provided on the adjacent sides of the two fixing components. A pushing component is provided between the two fixing components.

[0006] The pushing component includes a pushing block and a rotating rod. Both of the two fixed components have arc-shaped sliding grooves on their adjacent sides, and each of the two sliding grooves also has a locking groove. The pushing block is movably disposed in the two sliding grooves. The cross-section of the pushing block is set as a flat ellipse. The opposite ends of the pushing block extend into the two locking grooves respectively. The bottom end of the rotating rod is fixedly connected to the upper end of the pushing block.

[0007] Preferably, the pushing assembly includes a fixed frame and a sliding block. One side of the fixed frame is fixedly connected to one side of the detector body. One end of the sliding block extends into the interior of the fixed frame. The end of the sliding block away from the fixed frame is fixedly connected to one side of the pressing block. A fixing groove is provided on the side of the sliding block located on the pressing block.

[0008] Preferably, the reset assembly includes a reset block and a spring. One side of the reset block is fixedly connected to one side of the sliding block. A reset groove is provided inside the fixed frame. The reset block is movably disposed in the reset groove. One end of the reset block near the reset groove is fixedly connected to one end of the spring. The end of the spring away from the reset block is fixedly connected to one side of the inside of the reset groove.

[0009] Preferably, a rotating disk is fixedly connected to the end of the rotating rod away from the pushing block.

[0010] Preferably, a fixing plate is fixedly connected to the bottom of the detector body, and a base is fixedly connected to the bottom end of the fixing plate.

[0011] Preferably, multiple mounting plates are fixedly connected to opposite sides of the base.

[0012] Preferably, a guide frame is fixedly connected inside the sleeve.

[0013] This utility model has the following beneficial effects:

[0014] Compared with existing technologies, this FID detector ignition wire fixing device, by rotating the pushing block 90°, pushes the two fixing components to move in opposite directions due to the flat elliptical shape of the pushing block. During this movement, the pressing blocks on one side of the two fixing components disengage from the two fixing slots, allowing the ignition wire body to pass through the middle of the two fixing components. Rotating the pushing block 90° again resets the two fixing components due to the action of the reset component. The two pressing blocks then perform staggered pressing on the ignition wire body. The two staggered pressing plates fix the ignition wire by bending and pressing, providing a more uniform fixing force and reducing the risk of loosening or breaking of the ignition wire due to uneven force, thus ensuring the ignition performance of the FID detector.

[0015] Compared with existing technologies, this FID detector ignition wire fixing device fixes the ignition wire body by setting two misaligned compression plates. Because the fixing method is easy to operate, the difficulty and time cost of replacing the ignition wire body are relatively low, thereby reducing maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an ignition wire fixing device for an FID detector proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the fixing component proposed in this utility model;

[0018] Figure 3 This is an exploded view of the fixing component proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of another state of the fixing component proposed in this utility model;

[0020] Figure 5 This is a cross-sectional view of the fixing frame proposed in this utility model.

[0021] Legend:

[0022] 1. Base; 2. Mounting plate; 3. Fixing plate; 4. Detector body; 5. Fixing frame; 6. Ignition wire body; 7. Sliding block; 8. Rotary disk; 9. Sleeve; 10. Pushing block; 11. Rotating rod; 12. Guide frame; 13. Reset block; 14. Pressing block; 15. Fixing groove; 16. Spring; 17. Engaging groove. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0024] Reference Figure 1-5 This utility model provides an ignition wire fixing device for an FID detector. The device is used to fix the ignition wire body 6. The device is set on one side of the detector body 4 and includes a sleeve 9, a fixing component, and a pushing component. There are two fixing components, which extend into the inside of the sleeve 9. Multiple reset components for resetting the two fixing components are provided on the opposite sides of the two fixing components. The adjacent sides of the two fixing components are respectively provided with a squeezing block 14, and the adjacent sides of the two fixing components are also provided with a fixing groove 15. A pushing component is provided between the two fixing components.

[0025] The pushing assembly includes a pushing block 10 and a rotating rod 11. Both fixed assemblies have arc-shaped sliding grooves on their adjacent sides, and each of the two sliding grooves has a locking groove 17 inside. The pushing block 10 is movably disposed in the two sliding grooves. The cross-section of the pushing block 10 is set as a flat ellipse. The opposite ends of the pushing block 10 extend into the two locking grooves 17. The bottom end of the rotating rod 11 is fixedly connected to the upper end of the pushing block 10.

[0026] In use, by rotating the push block 90°, the push block 10, being a flat ellipse, pushes the two fixing components as it rotates, allowing them to move in opposite directions. During this movement, the pressing blocks 14 on one side of the two fixing components disengage from the two fixing slots 15. The ignition wire body 6 can then be passed through the middle of the two fixing components. Rotating the push block 90° again resets the two fixing components due to the reset components. The two pressing blocks 14 then press the ignition wire body 6 in a staggered manner. The two staggered pressing plates fix the ignition wire by bending and pressing, providing a more uniform fixing force and reducing the risk of loosening or breaking the ignition wire due to uneven force, thus ensuring the ignition performance of the FID detector.

[0027] Meanwhile, by setting two misaligned extrusion plates to fix the ignition wire body 6, the difficulty and time cost of replacing the ignition wire body 6 are relatively low due to the ease of operation of the fixing method, thereby reducing maintenance costs.

[0028] Furthermore, the pushing assembly includes a fixed frame 5 and a sliding block 7. One side of the fixed frame 5 is fixedly connected to one side of the detector body 4. One end of the sliding block 7 extends into the interior of the fixed frame 5, and the end of the sliding block 7 away from the fixed frame 5 is fixedly connected to one side of the pressing block 14. A fixing groove 15 is provided on the side of the sliding block 7 located on the pressing block 14. The reset assembly includes a reset block 13 and a spring 16. One side of the reset block 13 is fixedly connected to one side of the sliding block 7. A reset groove is provided inside the fixed frame 5. The reset block 13 is movably disposed in the reset groove. The end of the reset block 13 near the reset groove is fixedly connected to one end of the spring 16, and the end of the spring 16 away from the reset block 13 is fixedly connected to one side of the interior of the reset groove.

[0029] When the sliding block 7 moves into the fixed frame 5, it will drive the reset block 13 to move inside the reset groove. At this time, the movement of the reset block 13 will compress the spring 16. When the sliding block 7 loses its pushing force, the elastic force of the spring 16 will push the reset block 13 to move, so that the position of the sliding block 7 is reset.

[0030] A rotating disk 8 is fixedly connected to the end of the rotating rod 11 away from the push block 10. The rotating disk 8 is designed to make it easier to rotate the rotating rod 11. A fixing plate 3 is fixedly connected to the bottom of the detector body. A base 1 is fixedly connected to the bottom end of the fixing plate 3. Multiple mounting plates 2 are fixedly connected to the opposite side of the base 1.

[0031] The sleeve 9 is fixedly connected to a guide frame 12. The guide frame 12 is set so that after the ignition wire body 6 enters the sleeve 9, its movement position can tend to the center position of the sleeve 9, thus ensuring the accuracy of the installation position of the ignition wire body 6.

[0032] Working principle:

[0033] When in use, the device rotates the push block 10 by 90°. During this process, because the push block 10 is set in a flat elliptical shape, it pushes the two sliding blocks 7 to move as the push block 10 rotates, allowing the two sliding blocks 7 to move in opposite directions. During this movement, the pressing blocks 14 set on one side of the two sliding blocks 7 will disengage from the two fixing slots 15 respectively. Then, the ignition wire body 6 can be passed through the middle position of the two sliding blocks 7. Rotate the push block 10 by 90° again. At this time, the two sliding blocks 7 will be reset by the action of the spring 16. The two pressing blocks press the ignition wire body 6 in a staggered manner. The two staggered pressing plates fix the ignition wire by bending and pressing, which can provide a more uniform fixing force and reduce the risk of loosening or breaking of the ignition wire due to uneven force, thus ensuring the ignition performance of the FID detector.

[0034] When the sliding block 7 moves into the fixed frame 5, it will drive the reset block 13 to move inside the reset groove. At this time, the movement of the reset block 13 will compress the spring 16. When the sliding block 7 loses its pushing force, the elastic force of the spring 16 will push the reset block 13 to move, so that the position of the sliding block 7 is reset.

[0035] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. An ignition wire fixing device for an FID detector, the device being used to fix an ignition wire body (6), the device being disposed on one side of the detector body (4), characterized in that: It includes a sleeve (9), a fixing component and a pushing component. There are two fixing components, which extend into the interior of the sleeve (9). On the opposite sides of the two fixing components, there are multiple reset components for resetting the two fixing components. On the adjacent sides of the two fixing components, there are staggered squeezing blocks (14). On the adjacent sides of the two fixing components, there are also fixing grooves (15). A pushing component is provided between the two fixing components. The pushing component includes a pushing block (10) and a rotating rod (11). Both of the two fixed components have arc-shaped sliding grooves on their adjacent sides, and each of the two sliding grooves has a locking groove (17). The pushing block (10) is movably disposed in the two sliding grooves. The cross-section of the pushing block (10) is set as a flat ellipse. The opposite ends of the pushing block (10) extend into the two locking grooves (17). The bottom end of the rotating rod (11) is fixedly connected to the upper end of the pushing block (10).

2. The FID detector ignition wire fixing device according to claim 1, characterized in that: The pushing assembly includes a fixed frame (5) and a sliding block (7). One side of the fixed frame (5) is fixedly connected to one side of the detector body (4). One end of the sliding block (7) extends into the interior of the fixed frame (5). The end of the sliding block (7) away from the fixed frame (5) is fixedly connected to one side of the extrusion block (14). A fixing groove (15) is provided on the side of the sliding block (7) located on the extrusion block (14).

3. The FID detector ignition wire fixing device according to claim 2, characterized in that: The reset assembly includes a reset block (13) and a spring (16). One side of the reset block (13) is fixedly connected to one side of the sliding block (7). The fixed frame (5) has a reset groove inside. The reset block (13) is movably disposed in the reset groove. One end of the reset block (13) close to the reset groove is fixedly connected to one end of the spring (16). The end of the spring (16) away from the reset block (13) is fixedly connected to one side of the inside of the reset groove.

4. The FID detector ignition wire fixing device according to claim 3, characterized in that: A rotating disk (8) is fixedly connected to one end of the rotating rod (11) away from the push block (10).

5. The FID detector ignition wire fixing device according to claim 4, characterized in that: A fixing plate (3) is fixedly connected to the bottom of the detector body, and a base (1) is fixedly connected to the bottom end of the fixing plate (3).

6. The FID detector ignition wire fixing device according to claim 5, characterized in that: Multiple mounting plates (2) are fixedly connected to the opposite side of the base (1).

7. The FID detector ignition wire fixing device according to claim 6, characterized in that: The sleeve (9) is fixedly connected to a guide frame (12).

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