A low-power chemical instrument data acquisition and wireless transmission device

Abstract

This invention relates to the field of chemical instrumentation technology and discloses a low-power chemical instrument data acquisition and wireless transmission device. The device includes an instrument housing with covers on both sides. A cooling fan is fixedly installed inside the instrument housing, and the output shaft of the cooling fan extends out of the instrument housing to the outside. A dust filter is provided on the outer cover of the heat dissipation holes of the instrument housing. The dust filter has a through hole that mates with the output shaft of the cooling fan. A connecting component is provided on the outer wall of the output shaft of the cooling fan, and a brush plate is provided through the connecting component. The bristles of the brush plate contact and engage with the outer wall of the dust filter. This low-power chemical instrument data acquisition and wireless transmission device can be installed on horizontal walls and pipes by rotating the mounting strip and selecting the clamp. It can also clean the dust on the outer wall of the dust filter during ventilation and heat dissipation, ensuring clean airflow and effective heat dissipation for the internal components of the instrument, thus reducing the internal heat dissipation power consumption of the instrument.

Description

Technical Field

[0001] This invention relates to the field of chemical instrumentation technology, specifically to a low-power chemical instrumentation data acquisition and wireless transmission device. Background Technology

[0002] In many fields such as industrial production, environmental monitoring, and chemical experiments, chemical instruments collect and transmit detection data through internal data acquisition and wireless transmission modules. These modules are composed of a large number of precision electronic components. These components continuously generate heat during operation. If the heat cannot be dissipated in time, the operating temperature of the components will rise, which will affect the detection accuracy, signal transmission stability, and even cause component failure. Existing chemical instruments generally adopt a cooling solution with heat dissipation holes in the housing and a built-in cooling fan. The heat dissipation holes realize the airflow exchange between the inside and outside of the housing, and the fan accelerates the airflow to remove the heat generated by the internal electronic components. Existing heat dissipation solutions have certain shortcomings: To ensure heat dissipation efficiency, the heat dissipation holes of existing instruments are usually designed with a large diameter to reduce airflow resistance and increase ventilation. However, with the increase in diameter, dust, particulate matter and other impurities in the external environment can easily enter the housing directly with the airflow. These impurities will gradually accumulate on the surface of electronic components, the gaps in the circuit board and the fan blades, hindering the heat exchange between electronic components and the air, resulting in a continuous decline in the heat dissipation effect of the components. When the heat dissipation effect of the device decreases, the instrument will increase the output power of the fan to maintain the heat dissipation effect. This will significantly increase the overall power consumption of the chemical instrument. At the same time, the electronic devices will be in high temperature conditions for a long time, the error of data acquisition will increase significantly, and the signal stability of the wireless transmission module will also be seriously affected. In addition, the existing chemical instruments have relatively fixed installation methods, and can only be connected to a single wall or pipe. They cannot be quickly switched between different installation components according to the installation location, which reduces the effectiveness of the instruments.

[0003] Therefore, we propose a low-power chemical instrument data acquisition and wireless transmission device to solve the above problems. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a low-power chemical instrument data acquisition and wireless transmission device that can block dust in the external airflow when the chemical instrument is ventilated and cooled through heat dissipation holes. This prevents dust from entering the instrument and affecting the heat dissipation effect and increasing the heat dissipation power consumption. It solves the problems that the heat dissipation effect of existing chemical instruments is easily affected by external dust coverage, and that the installation components of the instrument are easily limited by the installation location.

[0005] (II) Technical Solution 1. To achieve the above objectives, the present invention provides the following technical solution: a data acquisition and wireless transmission device for a low-power chemical instrument, comprising a cover on both sides of an instrument housing, a cooling fan fixedly installed inside the instrument housing, an output shaft of the cooling fan extending out of the instrument housing and to the outside, a dust filter screen covering the heat dissipation holes of the instrument housing, a through hole for the cooling fan output shaft to pass through inside the dust filter screen, a connecting component on the outer wall of the cooling fan output shaft, and a brush plate through the connecting component, the bristles of the brush plate contacting and engaging with the outer wall of the dust filter screen; A wireless transmission module and a data acquisition and receiving cable are respectively fixed on the side of the two shell covers that are far apart from each other; The instrument housing has a rotating shaft rotatably mounted on its back side. The shaft wall of the rotating shaft is fixedly fitted with an installation strip. Both ends of the installation strip are provided with installation holes. The shaft wall of the rotating shaft is rotatably fitted with a clamp, which is fixedly connected to the instrument housing. The shaft wall is provided with a displacement fixing mechanism for limiting the position of the mounting strip.

[0006] Preferably, a sealing ring is fixedly fitted on the outer side of each of the two shell covers that are close to each other, and the sealing ring is in contact with the instrument housing.

[0007] Preferably, the repositioning and fixing mechanism includes a rotating plate, which is fixedly sleeved on the outer wall of the rotating shaft and has a positioning shaft slidingly passing through it. The end of the positioning shaft is inserted into the instrument housing. The back side of the instrument housing has a plurality of positioning holes evenly distributed axially. The shaft wall of the positioning shaft is sleeved with a first spring, and the two ends of the first spring are fixedly connected to the positioning shaft and the rotating plate, respectively.

[0008] Preferably, both ends of the clamp are provided with strip-shaped holes for insertion into the positioning shaft, and both ends of the mounting strip near the instrument housing are provided with rotating grooves for rotation of the rotating plate.

[0009] Preferably, the connecting assembly includes a plug rod, a collar is sleeved on the outside of the output shaft of the cooling fan, the collar is fixedly connected to the brush plate, a groove is formed on the outer wall of the collar, a sleeve is fixedly provided on the inner wall of the groove, the plug rod is slidably disposed in the sleeve and its end is inserted into the output shaft of the cooling fan, a second spring is sleeved on the rod wall of the plug rod, and the two ends of the second spring are fixedly connected to the plug rod and the sleeve respectively.

[0010] Preferably, the insert rod has a pull rod fixedly provided on its wall, and the end of the pull rod passes through the groove and extends to the outside.

[0011] Preferably, the dust filter screen is directly screwed to the surface of the instrument housing with a plurality of positioning bolts that are evenly distributed axially.

[0012] Preferably, both of the housing covers are connected to the instrument housing by a plurality of symmetrically distributed disassembly bolts at the four corners.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a low-power chemical instrument data acquisition and wireless transmission device, which has the following beneficial effects: 1. The data acquisition and wireless transmission device of this low-power chemical instrument, through the instrument housing, cooling fan, dust filter, connecting components, brush plate, clamp, positioning and fixing mechanism and mounting strip, can switch between horizontal wall and pipeline installation by rotating the mounting strip and selecting the clamp. At the same time, it can clean the dust on the outer wall of the dust filter during ventilation and heat dissipation, ensuring clean airflow and effective heat dissipation of the internal components of the instrument, reducing the internal heat dissipation power consumption of the instrument.

[0014] 2. The data acquisition and wireless transmission device of this low-power chemical instrument is equipped with a cooling fan, dust filter, brush plate and connecting components. The brush plate and dust filter can be disassembled and cleaned regularly to ensure the cleanliness of the chemical instrument during ventilation and heat dissipation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the data acquisition and wireless transmission device for a low-power chemical instrument proposed in this invention. Figure 2 for Figure 1 A three-dimensional structural diagram from another perspective; Figure 3 This is a side view of the present invention; Figure 4 for Figure 1 Schematic diagram of the internal structure of the instrument housing; Figure 5 for Figure 2 Enlarged view of the structure of part A in the middle section; Figure 6 for Figure 3 Enlarged view of the structure of part B in the middle section.

[0016] In the diagram: 1. Instrument housing; 2. Housing cover; 3. Cooling fan; 4. Dust filter; 5. Brush plate; 6. Wireless transmission module; 7. Data acquisition and receiving cable; 8. Rotating shaft; 9. Mounting strip; 10. Mounting hole; 11. Clamp; 12. Sealing ring; 13. Rotating plate; 14. Positioning shaft; 15. Positioning hole; 16. Strip hole; 17. Rotating groove; 18. Insert rod; 19. Collar; 20. Sleeve; 21. Spring; 22. Pull rod; 23. Positioning bolt; 24. Removal bolt. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of the present invention.

[0018] Example 1 Please see Figure 1-6 A low-power chemical instrument data acquisition and wireless transmission device includes an instrument housing 1 and cover 2 on both sides of the instrument housing 1. Multiple symmetrically distributed mounting bolts 24 are connected between the two cover 2 and the instrument housing 1. A sealing ring 12 is fixedly fitted onto the outer side of the two cover 2 near each other, and the sealing ring 12 contacts and engages with the instrument housing 1. A wireless transmission module 6 and a data acquisition and receiving cable 7 are fixedly installed on the side of the two cover 2 away from each other. A cooling fan 3 is fixedly installed inside the instrument housing 1. The output shaft of the cooling fan 3 passes through the instrument housing 1 and extends to the outside. A dust filter 4 is provided on the outer cover of the heat dissipation holes of the instrument housing 1. Multiple axially evenly distributed positioning bolts 23 are directly screwed onto the surface of the dust filter 4. A through hole is opened inside the dust filter 4 to accommodate the output shaft of the cooling fan 3. A connecting component is provided on the outer wall of the output shaft of the cooling fan 3, and a brush plate 5 is provided through the connecting component. The bristles of the brush plate 5 contact and engage with the outer wall of the dust filter 4. The back side of the instrument housing 1 is provided with a rotating shaft 8. The shaft wall of the rotating shaft 8 is fixedly fitted with an installation strip 9. Both ends of the installation strip 9 are provided with installation holes 10. The shaft wall of the rotating shaft 8 is rotatably fitted with a clamp 11, which is fixedly connected to the instrument housing 1.

[0019] Example 2 Example 2, based on Example 1, aims to reposition the mounting strip 9, such as... Figure 1-2 and Figure 5 As shown, the shaft wall of the rotating shaft 8 is provided with a displacement fixing mechanism for limiting the position of the mounting strip 9. The displacement fixing mechanism includes a rotating plate 13, which is fixedly sleeved on the outer wall of the rotating shaft 8 and has a positioning shaft 14 slidingly passing through it. The end of the positioning shaft 14 is inserted into the instrument housing 1. The back side of the instrument housing 1 has a plurality of axially evenly distributed positioning holes 15. The shaft wall of the positioning shaft 14 is sleeved with a first spring 25. The two ends of the first spring 25 are fixedly connected to the positioning shaft 14 and the rotating plate 13, respectively. The two ends of the clamp 11 are provided with strip-shaped holes 16 that cooperate with the insertion of the positioning shaft 14. The two ends of the mounting strip 9 near the instrument housing 1 are provided with rotating grooves 17 that cooperate with the rotation of the rotating plate 13.

[0020] Example 3 Example 3, based on Example 1, aims to enable rapid replacement of the brush plate 5, such as... Figure 1 , Figure 3 and Figure 6 As shown, the connecting assembly includes a plug rod 18, a collar 19 is sleeved on the outside of the output shaft of the cooling fan 3, the collar 19 is fixedly connected to the brush plate 5, a groove is provided on the outer wall of the collar 19, a sleeve 20 is fixedly provided on the inner wall of the groove, the plug rod 18 is slidably disposed in the sleeve 20, and its end is inserted into the output shaft of the cooling fan 3, a second spring 21 is sleeved on the rod wall of the plug rod 18, the two ends of the second spring 21 are fixedly connected to the plug rod 18 and the sleeve 20 respectively, and a pull rod 22 is fixedly provided on the rod wall of the plug rod 18, the end of the pull rod 22 passes through the groove and extends to the outside.

[0021] In summary, the data acquisition and wireless transmission device of this low-power chemical instrument, when in use, the data acquisition receiving cable 7 collects external chemical detection data, which is then processed inside the instrument housing 1 and wirelessly transmitted through the wireless transmission module 6. During operation, the cooling fan 3 starts to accelerate the airflow exchange between the inside and outside of the instrument housing 1. After being filtered by the dust filter 4, the airflow enters the interior through the heat dissipation holes, carrying away the heat generated by the electronic components and achieving heat dissipation and cooling. At the same time, the output shaft of the cooling fan 3 rotates, which drives the brush plate 5 connected to the connecting component to rotate synchronously. The bristles of the brush plate 5 contact the outer wall of the dust filter 4, continuously cleaning the dust adhering to the surface of the dust filter 4, avoiding dust blockage that affects ventilation efficiency, and thus reducing the power consumption of the cooling fan 3. During installation, if wall mounting is required, adjust the position of the mounting strip 9 through the positioning and fixing mechanism, insert the positioning shaft 14 into the positioning hole 15 of the instrument housing 1, and use the mounting hole 10 of the mounting strip 9 with fasteners to complete the fixation. If pipeline installation is required, loosen the positioning shaft 14 and rotate the mounting strip 9 to a position that does not affect the installation, and use the clamp 11 to clamp the pipeline to achieve fixation. When it is necessary to clean or replace the brush plate 5, pull the lever 22 to drive the insert rod 18 to compress the second spring 21 and disengage it from the output shaft of the cooling fan 3, and then remove the collar 19 and the brush plate 5. When replacing the dust filter 4, unscrew the positioning bolt 23 to remove it from the instrument housing 1. The cover 2 is fixed to the instrument housing 1 by the disassembly bolt 24. The sealing ring 12 ensures the sealing of the connection and prevents dust from entering from the gap.

[0022] It should be noted that the term "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-power chemical instrument data acquisition and wireless transmission device, comprising an instrument shell (1) and a shell cover (2) arranged on both sides of the instrument shell (1), characterized in that: A cooling fan (3) is fixedly installed inside the instrument housing (1). The output shaft of the cooling fan (3) passes through the instrument housing (1) and extends to the outside. A dust filter (4) is provided on the outside of the heat dissipation hole of the instrument housing (1). A through hole is opened inside the dust filter (4) to cooperate with the output shaft of the cooling fan (3). A connecting component is provided on the outer wall of the output shaft of the cooling fan (3), and a brush plate (5) is provided through the connecting component. The bristles of the brush plate (5) are in contact with the outer wall of the dust filter (4). The two shell covers (2) are respectively fixed with a wireless transmission module (6) and a data acquisition and receiving cable (7) on the side away from each other; The back side of the instrument housing (1) is provided with a rotating shaft (8), and the shaft wall of the rotating shaft (8) is fixedly sleeved with an installation strip (9). Both ends of the installation strip (9) are provided with installation holes (10). The shaft wall of the rotating shaft (8) is rotatably sleeved with a clamp (11), and the clamp (11) is fixedly connected to the instrument housing (1). The shaft wall of the rotating shaft (8) is provided with a displacement fixing mechanism for limiting the position of the mounting strip (9).

2. The low-power chemical instrument data acquisition and wireless transmission device according to claim 1, characterized in that: Both of the two shell covers (2) are fixedly fitted with sealing rings (12) at one end close to each other, and the sealing rings (12) are in contact with the instrument housing (1).

3. The low-power chemical instrument data acquisition and wireless transmission device according to claim 1, characterized in that: The repositioning and fixing mechanism includes a rotating plate (13), which is fixedly sleeved on the outer wall of the rotating shaft (8) and has a positioning shaft (14) slidingly passing through it. The end of the positioning shaft (14) is inserted into the instrument housing (1). The back side of the instrument housing (1) is provided with a plurality of positioning holes (15) evenly distributed in the axial direction. The shaft wall of the positioning shaft (14) is sleeved with a first spring (25), and the two ends of the first spring (25) are fixedly connected to the positioning shaft (14) and the rotating plate (13) respectively.

4. The low-power chemical instrument data acquisition and wireless transmission device according to claim 3, characterized in that: Both ends of the clamp (11) are provided with strip-shaped holes (16) for insertion into the positioning shaft (14), and both ends of the mounting strip (9) near the instrument housing (1) are provided with rotating grooves (17) for rotation of the rotating plate (13).

5. The low-power chemical instrument data acquisition and wireless transmission device according to claim 1, characterized in that: The connecting assembly includes a plug rod (18), and a collar (19) is sleeved on the outside of the output shaft of the cooling fan (3). The collar (19) is fixedly connected to the brush plate (5). A groove is provided on the outer wall of the collar (19), and a sleeve (20) is fixedly provided on the inner wall of the groove. The plug rod (18) is slidably disposed in the sleeve (20), and its end is inserted into the output shaft of the cooling fan (3). A second spring (21) is sleeved on the rod wall of the plug rod (18), and the two ends of the second spring (21) are fixedly connected to the plug rod (18) and the sleeve (20) respectively.

6. The low-power chemical instrument data acquisition and wireless transmission device according to claim 5, characterized in that: The rod wall of the insertion rod (18) is fixedly provided with a pull rod (22), and the end of the pull rod (22) passes through the groove and extends to the outside.

7. The data acquisition and wireless transmission device for a low-power chemical instrument according to claim 1, characterized in that: The dust filter (4) is directly screwed to the surface of the instrument housing (1) and is provided with a plurality of positioning bolts (23) that are evenly distributed in the axial direction.

8. The data acquisition and wireless transmission device for a low-power chemical instrument according to claim 1, characterized in that: Multiple detachment bolts (24) are symmetrically distributed at the four corners between the two shell covers (2) and the instrument housing (1).

Images