Gas chromatography TCD detector
By using an electric push rod to drive the piston rod and a sloped moving component, combined with a heat dissipation system, the problems of inconvenient movement and shaking of the gas chromatography TCD detector are solved, ensuring detection accuracy and device lifespan.
Patent Information
- Application Number
- CN202522504144.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-11-26
AI Technical Summary
Existing gas chromatography TCD detectors are laborious and prone to shaking when moved and repositioned, affecting detection accuracy, and have poor heat dissipation, leading to component damage.
An electric push rod drives the piston rod to move the moving block. Combined with the inclined design of the fixed block and the T-shaped plate, stable movement and support are achieved. At the same time, a heat dissipation system with ventilation holes, heat dissipation copper pipes and fans is set to ensure the stability of the device and temperature control.
It enables convenient movement and stable support of the gas chromatography TCD detector, avoiding the impact of shaking on detection accuracy, and extends the life of the device through efficient heat dissipation.
Smart Images
Figure CN223727772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas chromatography detector technology, specifically to a gas chromatography TCD detector. Background Technology
[0002] In the field of gas chromatography analysis, thermal conductivity detectors are widely used in industries such as petrochemicals, environmental monitoring, and food testing due to their advantages such as strong versatility, non-destructive nature, and ability to detect inorganic gases. However, existing gas chromatography TCD detector components still have two major problems in actual use.
[0003] Traditional TCD detector assemblies are typically heavy and often feature a fixed base design without a dedicated moving mechanism. When moving them between different workstations in the laboratory or adjusting their position according to testing needs, multiple people are required to lift them, which is not only labor-intensive but also carries the risk of vibrations that can displace or damage delicate internal components such as the thermal conductivity cell and signal transmission lines, thus affecting subsequent detection accuracy. While some improved assemblies are equipped with fixed casters for movement, these casters are always in contact with the ground, making the device prone to shaking due to minor unevenness or external impacts during detection. Since TCD detectors require extremely high baseline stability, even slight shaking can cause fluctuations in the thermal conductivity cell detection signal, resulting in quantitative analysis errors and failing to meet high-precision detection requirements. Therefore, a gas chromatography TCD detector is proposed. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a gas chromatography TCD detector, which solves the problem of inconvenient portability of gas chromatography detectors.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a gas chromatography TCD detector, including a detection stage, wherein a TCD detection component is fixedly mounted on the upper surface of the detection stage;
[0006] The testing platform is equipped with a moving component, which includes a groove, an electric push rod, a piston rod, a moving block, a guide rail, a fixed block, a T-shaped plate, a spring, and a pulley.
[0007] The four grooves are formed on the lower surface of the testing platform, the four electric push rods are fixedly installed in the inner wall of the testing platform, and the four piston rods are slidably sleeved on the inner surface of the four electric push rods.
[0008] Preferably, the four movable blocks are respectively fixedly installed at the end of the four piston rods away from the electric push rod, and the lower surface of the four movable blocks is set as an inclined plane;
[0009] Four guide rails are fixedly installed in the inner wall of the detection table base, and the four guide rails are slidably connected with the four moving blocks respectively.
[0010] Preferably, the four springs are fixedly installed on the inner surface of the detection table base, the four T-shaped plate horizontal plates are fixedly installed on the upper ends of the four springs respectively, and the vertical plates of the four T-shaped plates respectively slide through the lower surface of the detection table bottom plate.
[0011] Preferably, the four fixed blocks are fixedly installed on the upper surfaces of the four T-shaped plate horizontal plates respectively, and the upper surfaces of the four fixed blocks are all arranged in inclined surfaces.
[0012] Four pulleys are fixedly installed on the lower surfaces of the vertical plates of the four T-shaped plates.
[0013] Preferably, a ventilation hole is arranged on the right surface of the detection table, and a mounting seat is fixedly installed in the inner wall of the detection table base.
[0014] A heat dissipation copper pipe is fixedly installed on the mounting seat.
[0015] Preferably, heat dissipation fins are fixedly installed on the outer surface of the heat dissipation copper pipe, and a fan is fixedly installed on the rear surface of the heat dissipation fins.
[0016] Compared with the prior art, the gas chromatography TCD detector has the following beneficial effects:
[0017] 1. When the gas chromatography TCD detector is moved, the electric push rod drives the piston rod to drive the moving block to slide along the guide rail, and through the cooperation of the inclined surface of the fixed block, the T-shaped plate is pushed down to make the pulley touch the ground, so that the position is easily adjusted, and after the position is reached, the spring is reset, the pulley is collected into the groove, and the detection table is stably supported, which not only solves the problem of device carrying, but also avoids shaking to affect the analysis accuracy of the TCD detection assembly through stable support.
[0018] 2. The gas chromatography TCD detector, the ventilation hole, the mounting seat, the heat dissipation copper pipe and the like constitute a high-efficiency heat dissipation system, and after the TCD detection assembly and the like generate heat, the heat dissipation copper pipe absorbs heat through the mounting seat and conducts to the heat dissipation fins, the fan accelerates airflow to take away heat, and hot air is discharged from the ventilation hole, so that the internal temperature of the detection table is effectively controlled, the sensitivity of the TCD detection assembly is prevented from being reduced by high temperature, meanwhile, part overheating damage is avoided, and the service life of the overall device is prolonged. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a structure schematic view of the gas chromatography TCD detector of the utility model;
[0020] Figure 2 It is a structure schematic view of the TCD detection assembly of the utility model;
[0021] Figure 3This is a schematic diagram of the bottom structure of the testing platform of this utility model;
[0022] Figure 4 This is a schematic diagram of the testing platform structure of this utility model;
[0023] Figure 5 This utility model Figure 4 Enlarged view of the structure at point A in the middle;
[0024] Figure 6 This is a schematic diagram of the internal structure of the testing station of this utility model;
[0025] Figure 7 This utility model Figure 6 Enlarged view of the structure at point B in the middle.
[0026] In the diagram: 1. Testing platform; 2. TCD testing component; 3. Ventilation hole; 4. Groove; 5. Electric push rod; 6. Piston rod; 7. Moving block; 8. Guide rail; 9. Fixing block; 10. T-shaped plate; 11. Spring; 12. Pulley; 13. Mounting base; 14. Copper heat dissipation pipe; 15. Heat dissipation fins; 16. Fan. Detailed Implementation
[0027] 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.
[0028] Please see Figures 1-7 This utility model provides a new technical solution: a gas chromatography TCD detector, including a detection stage 1, and a TCD detection component 2 fixedly installed on the upper surface of the detection stage 1;
[0029] The testing table 1 is equipped with a moving component, which includes a groove 4, an electric push rod 5, a piston rod 6, a moving block 7, a guide rail 8, a fixed block 9, a T-shaped plate 10, a spring 11, and a pulley 12.
[0030] Four grooves 4 are formed on the lower surface of the testing table 1, four electric push rods 5 are fixedly installed in the inner wall of the testing table 1, and four piston rods 6 are respectively slidably sleeved on the inner surface of the four electric push rods 5.
[0031] Furthermore, the four movable blocks 7 are respectively fixedly installed at the ends of the four piston rods 6 away from the electric push rod 5, and the lower surfaces of the four movable blocks 7 are all set at an angle.
[0032] Four guide rails 8 are fixedly installed in the inner wall of the base of the detection table 1, and the four guide rails 8 are respectively in sliding connection with the four moving blocks 7.
[0033] Further, four springs 11 are respectively fixedly installed on the inner surface of the base of the detection table 1, the horizontal plates of the four T-shaped plates 10 are respectively fixedly installed on the upper ends of the four springs 11, and the vertical plates of the four T-shaped plates 10 are respectively slidably penetrated through the lower surface of the bottom plate of the detection table 1.
[0034] Further, four fixed blocks 9 are respectively fixedly installed on the upper surfaces of the horizontal plates of the four T-shaped plates 10, and the upper surfaces of the four fixed blocks 9 are all arranged in an inclined surface manner.
[0035] Four pulleys 12 are respectively fixedly installed on the lower surfaces of the vertical plates of the four T-shaped plates 10.
[0036] Further, a ventilation hole 3 is formed in the right surface of the detection table 1, and a mounting seat 13 is fixedly installed in the inner wall of the base of the detection table 1.
[0037] A heat dissipation copper pipe 14 is fixedly installed on the mounting seat 13.
[0038] Further, a heat dissipation fin 15 is fixedly installed on the outer surface of the heat dissipation copper pipe 14, and a fan 16 is fixedly installed on the rear surface of the heat dissipation fin 15.
[0039] Structural explanation: The detection table 1 is the basic support structure of the entire TCD detector, bears the core role of fixing and bearing other components, and the stable structure can ensure the accurate installation of the TCD detection assembly 2, the moving assembly and other key components, provide a space for the cooperative work of various components, guarantee the stability of the overall device during the detection process, and avoid the influence of the foundation shaking on the detection precision.
[0040] The TCD detection assembly 2 is the core component for realizing the TCD detection function of the gas chromatograph, which is composed of an ultrasonic probe, an ultrasonic emission module, an ultrasonic receiving module, a signal processing module, a data calculation and analysis module and a control unit, is responsible for detecting and analyzing the entering sample components, can sense the change of thermal conductivity caused by different components in the sample in the thermal conductivity cell, convert the physical change into a measurable electrical signal, provide key data support for the qualitative and quantitative analysis of the sample components, and directly determine the accuracy of the detection result.
[0041] The ventilation hole 3 mainly plays a role of ventilation and heat dissipation, cooperates with the heat dissipation components such as the heat dissipation copper pipe 14 and the fan 16 to form a heat dissipation channel, and promotes the air circulation between the inside and outside of the detection table 1 to accelerate the heat dissipation and prevent the internal temperature from being too high to affect the sensitivity of the TCD detection assembly 2 and the normal service life of other components.
[0042] Groove 4: opened in the lower surface of the detection table 1, on the one hand, it provides accommodation space for some parts in the moving assembly, such as pulley 12, to avoid collision damage caused by exposed parts, on the other hand, it can assist positioning to ensure the installation position of the moving assembly on the detection table 1 is accurate, at the same time, it does not affect the overall stable placement of the detection table 1, and maintains the regularity of the bottom structure of the device.
[0043] Electric push rod 5: is the power source of the moving assembly, which realizes the telescopic action by receiving the control signal, it can drive the piston rod 6 to move linearly, and then drive the moving block 7 to slide on the guide rail 8, providing power for the subsequent action of the fixed block 9 and the T-shaped plate 10, it is the key driving component to realize the position adjustment or support state switching of the detection table 1.
[0044] Piston rod 6: as the motion transmission component of the electric push rod 5, one end is slidably sleeved in the inner surface of the electric push rod 5, the other end is fixedly connected with the moving block 7, when the electric push rod 5 starts, the piston rod 6 will follow the telescopic action of the electric push rod 5 to move linearly synchronously, accurately transmitting the power of the electric push rod 5 to the moving block 7, ensuring the stability and effectiveness of power transmission.
[0045] Moving block 7: the lower surface is inclined, which plays a role in power conversion and conduction, it slides along the guide rail 8 under the drive of the piston rod 6, its inclined surface will contact and generate force with the inclined surface of the fixed block 9, through the inclined surface contact, the horizontal movement is converted into the force to push the fixed block 9 to move up and down, providing driving force for the lifting of the T-shaped plate 10.
[0046] Guide rail 8: fixedly installed in the inner wall of the detection table 1 base, it plays a guiding and limiting role in the movement of the moving block 7, it can limit the moving block 7 to slide only in the set direction, avoiding the moving block 7 from deviating or shaking during movement, ensuring the accurate contact of the moving block 7 with the inclined surface of the fixed block 9, and guaranteeing the stability and reliability of the overall action of the moving assembly.
[0047] Fixed block 9: the upper surface is inclined, which cooperates with the inclined surface of the moving block 7 to realize force transmission, when the inclined surface of the moving block 7 contacts and slides relative to the inclined surface of the fixed block 9, the fixed block 9 will move in the vertical direction under the action of the inclined surface, and then drive the T-shaped plate 10 fixedly connected therewith to lift synchronously, it is the key force transmission component connecting the moving block 7 and the T-shaped plate 10.
[0048] T-shaped plate 10: composed of a horizontal plate and a vertical plate, the horizontal plate is connected with the spring 11 and the fixed block 9, the vertical plate slides through the lower surface of the detection table 1 bottom plate and installs the pulley 12, it realizes lifting under the drive of the fixed block 9, when it rises, it can retract the pulley 12, so that the detection table 1 base directly contacts the support surface to maintain stability, when it descends, it makes the pulley 12 touch the ground, facilitating the movement of the device, and realizing the switching between support and movement states.
[0049] Spring 11: fixedly installed between the inner surface of the base of the detection platform 1 and the horizontal plate of the T-shaped plate 10, mainly plays a reset and buffering role, when the acting force of the moving block 7 on the fixed block 9 decreases or disappears, the spring 11 can push the T-shaped plate 10 to reset by its own elasticity, so that the pulley 12 returns to the initial state, and at the same time, the impact force can be buffered during the lifting of the T-shaped plate 10, avoiding damage caused by rigid contact between components.
[0050] Pulley 12: fixedly installed on the lower surface of the vertical plate of the T-shaped plate 10, is a key component for realizing the movement of the detection platform 1, when the pulley 12 touches the ground when the T-shaped plate 10 descends, the pulley 12 can convert the sliding friction between the detection platform 1 and the supporting surface into rolling friction, greatly reducing the moving resistance, facilitating the staff to push the entire detector assembly to adjust the position, and improving the flexibility of the device.
[0051] Mounting seat 13: fixedly installed in the inner wall of the base of the detection platform 1, mainly functions to fix and support the heat dissipation copper pipe 14, which can provide a stable installation basis for the heat dissipation copper pipe 14, ensure the fixed position of the heat dissipation copper pipe 14 inside the detection platform 1, avoid displacement and damage of the heat dissipation copper pipe 14 due to movement or vibration of the device, and ensure the normal operation of the heat dissipation system.
[0052] Heat dissipation copper pipe 14: fixedly installed on the mounting seat 13, is a core heat conduction component of the heat dissipation system, the heat generated by the internal components of the detection platform 1 is transferred to the heat dissipation copper pipe 14, and due to the excellent heat conduction performance of the copper pipe, the heat can be quickly conducted to the surface of the heat dissipation fin 15, providing an efficient heat conduction path for subsequent heat dissipation, which is a key link in heat transfer.
[0053] Heat dissipation fin 15: fixedly installed on the outer surface of the heat dissipation copper pipe 14, which can increase the heat dissipation efficiency by increasing the heat dissipation area, the heat conducted by the heat dissipation copper pipe 14 is evenly distributed on the heat dissipation fin 15, and the multi-piece structure of the fin greatly increases the contact area with air, so that the heat can be quickly dissipated through air convection, enhancing the heat dissipation effect of the entire heat dissipation system.
[0054] Fan 16: fixedly installed on the rear surface of the heat dissipation fin 15, is a power component for active heat dissipation, which can generate airflow when started, accelerate the flow of air around the heat dissipation fin 15, quickly carry away the heat on the fin, further improve the heat dissipation efficiency, and ensure that the internal temperature of the detection platform 1 is maintained within a suitable range, avoiding the adverse effects of high temperature on the performance of key components such as the TCD detection assembly 2.
[0055] Working principle: when the mobile device is needed, the electric push rod 5 receives the control signal to start, drives the piston rod 6 to extend outward, the piston rod 6 drives the moving block 7 fixed therewith to slide along the guide rail 8 to the direction close to the fixed block 9, the inclined surface of the lower surface of the moving block 7 contacts and slides relative to the inclined surface of the upper surface of the fixed block 9, the horizontal thrust is converted into vertical downward pressure, the fixed block 9 drives the T-shaped plate 10 under the action of the pressure to compress the spring 11, the vertical plate of the T-shaped plate 10 synchronously extends downward, so that the lower end pulley 12 passes through the groove 4 and touches the ground, when the pulley 12 completely supports the detection table 1, the electric push rod 5 stops working, at this time the device is switched to the moving state, the worker can move the whole assembly by the pulley 12, when the device moves to the target position, the electric push rod 5 is reversely started, the piston rod 6 is retracted, the moving block 7 is reset along the guide rail 8 away from the fixed block 9, the pressure of the moving block 7 on the fixed block 9 disappears, the spring 11 is stretched upward by the elastic potential, pushes the T-shaped plate 10 to reset, the pulley 12 is retracted into the groove 4, the detection table 1 base directly contacts the supporting surface, the device is switched to the stable supporting state, guarantees the subsequent detection accuracy, in the detection process, the heat generated by the TCD detection assembly 2 and other components is transferred to the inside of the detection table 1 base, the copper heat dissipation pipe 14 is tightly attached to the inner wall of the base through the mounting seat 13, quickly absorbs heat and conducts to the heat dissipation fins 15 on the outer surface, the heat dissipation fins 15 increase the contact area with air through the multi-piece structure, accelerate heat diffusion, at the same time the fan 16 is started, generates directional airflow to blow to the heat dissipation fins 15, quickly takes away the heat, the hot air flow is finally discharged outside the device through the ventilation hole 3 on the right surface of the detection table 1.
[0056] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A gas chromatograph TCD detector comprising a detection stage (1), characterised in that: The upper surface of the detection table (1) is fixedly installed with a TCD detection assembly (2); The detection table (1) is provided with a moving assembly, which comprises a groove (4), an electric push rod (5), a piston rod (6), a moving block (7), a guide rail (8), a fixed block (9), a T-shaped plate (10), a heat dissipation copper pipe (14), a spring (11) and a pulley (12). The four grooves (4) are arranged on the lower surface of the detection table (1), and the four electric push rods (5) are fixedly installed on the inner wall of the detection table (1).
2. The gas chromatography TCD detector of claim 1, wherein: The four moving blocks (7) are fixedly installed on the ends of the four piston rods (6) away from the electric push rods (5), and the lower surfaces of the four moving blocks (7) are all arranged in an inclined manner. The four guide rails (8) are fixedly installed on the inner wall of the base of the detection table (1), and the four guide rails (8) are slidably connected with the four moving blocks (7).
3. The gas chromatography TCD detector of claim 1, wherein: The four springs (11) are fixedly installed on the inner surface of the base of the detection table (1), the horizontal plates of the four T-shaped plates (10) are fixedly installed on the upper ends of the four springs (11), and the vertical plates of the four T-shaped plates (10) are slidably penetrated through the lower surface of the bottom plate of the detection table (1).
4. The gas chromatography TCD detector of claim 1, wherein: The four fixed blocks (9) are fixedly installed on the upper surfaces of the horizontal plates of the four T-shaped plates (10), and the upper surfaces of the four fixed blocks (9) are all arranged in an inclined manner. The four pulleys (12) are fixedly installed on the lower surfaces of the vertical plates of the four T-shaped plates (10).
5. The gas chromatography TCD detector of claim 1, wherein: The right surface of the detection table (1) is provided with a ventilation hole (3), and the inner wall of the base of the detection table (1) is fixedly installed with a mounting seat (13). The heat dissipation copper pipe (14) is fixedly installed on the mounting seat (13).
6. The gas chromatography TCD detector of claim 5, wherein: The outer surface of the heat dissipation copper pipe (14) is fixedly installed with a heat dissipation fin (15), and the fan (16) is fixedly installed on the rear surface of the heat dissipation fin (15).