Supporting device for low-concentration particulate matter sampling gun

Abstract

The utility model discloses a low-concentration particulate matter sampling gun supporting device which comprises a fixing support, a supporting sleeve for supporting a sampling pipe of a sampling gun is fixedly installed on the fixing support, a placing inlet for placing the sampling pipe is formed in the upper portion of the supporting sleeve, and the sampling pipe is horizontally placed in the supporting sleeve. A cover plate for blocking the placing inlet is hinged to the portion, located at the placing inlet, of the supporting sleeve, a locking structure convenient to lock and disassemble is arranged between the cover plate and the supporting sleeve, and a supporting structure capable of supporting the sampling pipe to move and rotate is arranged in the supporting sleeve; the cover plate is provided with an auxiliary structure for jacking the sampling pipe when the placing inlet is blocked, and the supporting sleeve is provided with a rotation driving device and a linear driving device which are used for driving the sampling pipe to rotate and linearly move; according to the device, the sampling gun can be automatically rotated and conveyed after being supported, manual participation is reduced, and the sampling efficiency and accuracy are improved.

Description

Technical Field

[0001] This utility model relates to the field of particulate matter concentration sampling and detection technology, and in particular to a support device for a low-concentration particulate matter sampling gun. Background Technology

[0002] A sampling gun is used to sample gas from the environment to be tested. The sampled gas is then passed into a concentration measuring instrument to obtain a concentration value. Currently, the detection of dust concentration inside chimneys is generally done in a fixed manner, where the sampling gun is installed near the chimney for dust concentration detection. This method requires immobility during testing and multiple sampling points, necessitating manual relocation of the sampling gun to different testing locations. Furthermore, each sampling session takes a considerable amount of time, requiring workers to wait for each sampling session to finish before changing testing points, resulting in significant waste of manpower and energy. Since chimneys are typically open-air environments, manual labor is insufficient to support the entire sampling process under these special conditions. Utility Model Content

[0003] The technical problem to be solved by this utility model is: a support device for a low-concentration particulate matter sampling gun, which can support the sampling gun and automatically rotate and transport it, reducing manual intervention and improving sampling efficiency and accuracy.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a low-concentration particulate matter sampling gun support device, including a fixed bracket, a support sleeve for supporting the sampling tube of the sampling gun is fixedly installed on the fixed bracket, the upper part of the support sleeve is provided with a placement inlet for inserting the sampling tube, the sampling tube is placed horizontally inside the support sleeve, a cover plate for sealing the placement inlet is hinged to the support sleeve at the placement inlet, a locking structure for easy locking and disassembly is provided between the cover plate and the support sleeve, a support structure for supporting the sampling tube to move and rotate is provided inside the support sleeve, an auxiliary structure for pressing against the sampling tube when sealing the placement inlet is provided on the cover plate, and a rotation drive device and a linear drive device for driving the sampling tube to rotate and move linearly are provided on the support sleeve.

[0005] As a preferred embodiment, the supporting structure and the auxiliary structure are both omnidirectional spheres, and several omnidirectional spheres are provided and installed circumferentially in the supporting sleeve and on the cover plate through the sphere base.

[0006] As a preferred embodiment, the support sleeve is provided in two parts, including an upstream support sleeve and a downstream support sleeve, the linear drive device is installed on the upstream support sleeve, and the rotary drive device is installed on the downstream support sleeve.

[0007] As a preferred embodiment, the rotation drive device includes a rotation drive roller that cooperates with the downstream support sleeve. The axis of the rotation drive roller is in the same direction as the axis of the downstream support sleeve. The rotation drive roller is rotatably mounted on a roller mounting frame. The roller mounting frame is equipped with a rotation drive motor that drives the rotation drive roller to rotate via a transmission structure. A downstream mounting seat is fixedly mounted on the downstream support sleeve. A drive cylinder is fixedly mounted on the downstream mounting seat. The piston rod of the drive cylinder is connected to the roller mounting frame and drives the roller mounting frame to move linearly along the radial direction of the downstream support sleeve. The downstream mounting seat is equipped with a guide structure that connects to the roller mounting frame to assist in guiding the sliding motion. The downstream support sleeve is equipped with a notch corresponding to the roller mounting frame.

[0008] As a preferred embodiment, the linear drive device includes a linear drive roller that cooperates with an upstream support sleeve. The axis of the linear drive roller is perpendicular to the axis of the upstream support sleeve. The linear drive roller is rotatably mounted on a roller mounting frame. The roller mounting frame is equipped with a linear drive motor that drives the linear drive roller to rotate via a transmission structure. An upstream mounting seat is fixedly mounted on the upstream support sleeve. A drive cylinder is fixedly mounted on the upstream mounting seat. The piston rod of the drive cylinder is connected to the roller mounting frame and drives the roller mounting frame to move radially linearly along the upstream support sleeve. The upstream mounting seat is equipped with a guide structure that connects to the roller mounting frame to assist in guiding and sliding. The upstream support sleeve is equipped with a notch corresponding to the roller mounting frame.

[0009] As a preferred embodiment, the upstream support sleeve and the downstream support sleeve have the same structure. The upstream support sleeve has three omnidirectional balls evenly distributed around its circumference, and the cover plate has two omnidirectional balls evenly distributed. The omnidirectional balls of the upstream support sleeve are distributed at both ends.

[0010] As a preferred embodiment, the fixed bracket is a height-adjustable, telescopic triangular bracket.

[0011] After adopting the above technical solution, the effect of this utility model is as follows: The low-concentration particulate matter sampling gun support device includes a fixed bracket, on which a support sleeve for supporting the sampling tube of the sampling gun is fixedly installed. The upper part of the support sleeve has a placement inlet for inserting the sampling tube. The sampling tube is placed horizontally inside the support sleeve. A cover plate for sealing the placement inlet is hinged to the support sleeve at the placement inlet. A locking structure for easy locking and disassembly is provided between the cover plate and the support sleeve. A support structure for supporting the sampling tube to move and rotate is provided inside the support sleeve. An auxiliary structure for pressing against the sampling tube when sealing the placement inlet is provided on the cover plate. A rotation drive device and a linear drive device are provided on the support sleeve for driving the sampling tube to rotate and move linearly. First, open the cover plate and place the sampling tube of the sampling gun into the support sleeve, where it is supported by the support structure. Then, close the cover plate and use an auxiliary structure to hold the support sleeve in place. Next, use a rotation drive to rotate the sampling tube so that the sampling head of the gun is facing upwards, preventing gas from being drawn in first. Then, use a linear drive to move the sampling tube linearly to the first sampling point. Then, use the rotation drive to turn the sampling head downwards to begin sampling at the first sampling point. After sampling, repeat the above operation, then drive the sampling tube to rotate so that the sampling head of the gun is facing upwards again, and move it linearly to the second sampling point, and so on. This eliminates the need for manual handling and monitoring of the sampling gun, reducing manual labor. This device can automatically rotate and transport the sampling gun after support, reducing manual intervention and improving sampling efficiency and accuracy.

[0012] Furthermore, since the supporting structure and the auxiliary structure are both omnidirectional spheres, and several omnidirectional spheres are provided and installed in the supporting sleeve and on the cover plate through the circumference of the sphere base, the omnidirectional spheres can ensure arbitrary rotation, thereby adapting to the rotation and linear movement of the sampling tube and improving the stability of the sampling tube support movement.

[0013] Furthermore, since there are two support sleeves, including an upstream support sleeve and a downstream support sleeve, the linear drive device is installed on the upstream support sleeve and the rotary drive device is installed on the downstream support sleeve; the upstream and downstream support sleeves can improve the stability of the sampling gun placement during use, and can avoid the support sleeves being too long, reducing production costs and space occupation.

[0014] Furthermore, the rotation drive device includes a rotation drive roller that cooperates with the downstream support sleeve. The axis of the rotation drive roller is in the same direction as the axis of the downstream support sleeve. The rotation drive roller is rotatably mounted on a roller mounting frame. The roller mounting frame is equipped with a rotation drive motor that drives the rotation drive roller to rotate via a transmission structure. A downstream mounting seat is fixedly mounted on the downstream support sleeve. A drive cylinder is fixedly mounted on the downstream mounting seat. The piston rod of the drive cylinder is connected to the roller mounting frame and drives the roller mounting frame to move linearly along the radial direction of the downstream support sleeve. The downstream mounting seat is equipped with a guide structure that connects to the roller mounting frame to assist in guiding the sliding motion. The downstream support sleeve is equipped with a notch corresponding to the roller mounting frame. After the sampling tube is supported and restricted by the omnidirectional ball, the rotation drive roller can move closer to or away from the sampling tube by driving the overall roller mounting frame through the drive cylinder. Then, the rotation drive motor can drive the rotation drive roller to rotate, thereby effectively driving the sampling tube to rotate and adjusting the orientation of the sampling head. At the same time, it can also avoid friction between the rotation drive roller and the sampling tube during linear movement. The notch can also facilitate the avoidance when the roller mounting frame moves. The guide structure can improve the stability of the drive cylinder.

[0015] Furthermore, the linear drive device includes a linear drive roller that cooperates with the upstream support sleeve. The axis of the linear drive roller is perpendicular to the axis of the upstream support sleeve. The linear drive roller is rotatably mounted on a roller mounting frame. The roller mounting frame is equipped with a linear drive motor that drives the linear drive roller to rotate via a transmission structure. An upstream mounting seat is fixedly mounted on the upstream support sleeve. A drive cylinder is fixedly mounted on the upstream mounting seat. The piston rod of the drive cylinder connects to the roller mounting frame and drives the roller mounting frame to move radially linearly along the upstream support sleeve. The upstream mounting seat is equipped with a guide structure that connects to the roller mounting frame to assist in guiding the sliding motion. The upstream support sleeve is equipped with a notch corresponding to the roller mounting frame. Similarly, by driving the overall roller mounting frame with the drive cylinder, the linear drive roller can move closer to or away from the sampling tube. Then, the linear drive motor can drive the linear drive roller to rotate, thereby effectively driving the sampling tube to move linearly and changing the sampling point. During rotation, friction between the linear drive roller and the sampling tube can be avoided. The notch can also facilitate the avoidance of the roller mounting frame during movement. The guide structure can improve the stability of the drive cylinder.

[0016] Furthermore, since the upstream support sleeve and the downstream support sleeve have the same structure, the upstream support sleeve has three omnidirectional spheres evenly distributed around its circumference, and the cover plate has two omnidirectional spheres evenly distributed. The omnidirectional spheres of the upstream support sleeve are distributed at both ends. This ensures that the omnidirectional spheres support the sampling tube stably and accurately, thus improving the performance.

[0017] Furthermore, since the fixed bracket is a height-adjustable, telescopic triangular bracket, the support height of the sampling gun can be adjusted according to different chimney heights, ensuring good adaptability. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0020] Figure 2 This is a front view of an embodiment of the present utility model;

[0021] Figure 3 This is a cross-sectional view of an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the structure inside the downstream support sleeve in an embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure inside the upstream support sleeve in an embodiment of this utility model;

[0024] In the attached diagram: 1. Chimney; 2. Triangular telescopic bracket; 3. Upstream support sleeve; 4. Downstream support sleeve; 5. Outer shell; 6. Sampling tube; 7. Sampling head; 8. Placement inlet; 9. Cover plate; 10. Omnidirectional ball; 11. Ball seat; 12. Locking pressure plate; 13. Rotary drive roller; 14. Roller mounting frame; 15. Rotary drive motor; 16. Downstream mounting seat; 17. Drive cylinder; 18. Notch; 19. Guide rod; 20. Guide cylinder; 21. Driven helical gear; 22. Driven helical gear; 23. Linear drive roller; 24. Linear drive motor; 25. Upstream mounting seat. Detailed Implementation

[0025] The present invention will be further described in detail below through specific embodiments.

[0026] like Figures 1 to 5 As shown, a low-concentration particulate matter sampling gun support device includes a fixed bracket, on which a support sleeve for supporting the sampling tube 6 of the sampling gun is fixedly installed. The upper part of the support sleeve is provided with a placement inlet 8 for inserting the sampling tube 6. The sampling tube 6 is placed horizontally inside the support sleeve. A cover plate 9 is hinged to the support sleeve at the placement inlet 8 to block the placement inlet 8. A locking structure for easy locking and disassembly is provided between the cover plate 9 and the support sleeve. The support sleeve is provided with a support structure that allows the sampling tube 6 to move and rotate. The cover plate 9 is provided with an auxiliary structure that holds the sampling tube 6 in place when blocking the placement inlet 8. The support sleeve is provided with a rotation drive device and a linear drive device for driving the sampling tube 6 to rotate and move linearly.

[0027] In this embodiment, the support structure and the auxiliary structure are the same, both being omnidirectional spheres 10. Several omnidirectional spheres 10 are provided and are circumferentially installed in the support sleeve and on the cover plate 9 through the sphere seat 11. The omnidirectional spheres 10 can ensure arbitrary rotation, thereby adapting to the rotation and linear movement of the sampling tube 6 and improving the stability of the support movement of the sampling tube 6.

[0028] like Figure 2 and Figure 3 As shown, there are two support sleeves, including an upstream support sleeve 3 and a downstream support sleeve 4. The linear drive device is installed on the upstream support sleeve 3, and the rotary drive device is installed on the downstream support sleeve 4. The sampling gun includes a housing 5, a sampling tube 6, and a sampling head 7. The sampling tube 6 is clamped into the upstream support sleeve 3 and the downstream support sleeve 4 and then locked by the cover plate 9 to complete the fixation of the sampling gun, ensuring stable support and avoiding excessive length of the support sleeve, reducing production costs and space occupation. The sampling gun is an existing structure on the market. Patent No. 202010141167.5 discloses a portable dust concentration detection device, which describes the overall structure of the sampling gun in detail, so it will not be described in detail in this article.

[0029] A hinged joint is provided between the cover plate 9 and the support sleeve, and a locking pressure plate 12 is provided on both the cover plate 9 and the support sleeve. The locking structure is a bolt and nut structure that passes through the locking pressure plate 12, which can effectively ensure that the cover plate 9 can effectively press down the sampling tube 6.

[0030] like Figure 4As shown, the rotation drive device includes a rotation drive roller 13 that cooperates with the downstream support sleeve 4. The axis of the rotation drive roller 13 is in the same direction as the axis of the downstream support sleeve 4. The rotation drive roller 13 is rotatably mounted on a roller mounting frame 14. The roller mounting frame 14 is provided with a rotation drive motor 15 that drives the rotation drive roller 13 to rotate via a transmission structure. A downstream mounting seat 16 is fixedly mounted on the downstream support sleeve 4. A drive cylinder 17 is fixedly mounted on the downstream mounting seat 16. The piston rod of the drive cylinder 17 connects to the roller mounting frame 14 and drives the roller mounting frame 14 to move radially linearly along the downstream support sleeve 4. The downstream mounting seat 16 is provided with a guide structure that connects to the roller mounting frame 14 to assist in sliding. The downstream support sleeve 4 is provided with a notch 18 corresponding to the roller mounting frame 14. After the sampling tube 6 is supported and restricted by the omnidirectional ball 10, it is driven by the drive cylinder 16 to move radially linearly along the downstream support sleeve 4. The cylinder 17 drives the integral roller mounting frame 14, allowing the rotating drive roller 13 to move closer to or further away from the sampling tube 6. Then, the rotating drive motor 15 drives the rotating drive roller 13 to rotate, thereby effectively driving the sampling tube 6 to rotate and adjusting the orientation of the sampling head 7. At the same time, it can also avoid friction between the rotating drive roller 13 and the sampling tube 6 during linear movement. The notch 18 can also facilitate the avoidance when the roller mounting frame 14 moves. The guide structure can improve the stability of the drive cylinder 17. The guide structure is a guide rod 19 fixedly installed on the roller mounting frame 14. The guide rod 19 passes through the downstream mounting seat 16. A guide cylinder 20 is fixedly installed on the downstream mounting seat 16. The transmission structure is a helical gear transmission. The driven helical gear 21 is coaxially and synchronously rotated with the rotating drive roller 13 and is installed on the roller mounting frame 14. The driving helical gear 22 is connected to the output shaft of the rotating drive motor 15 to drive the driven helical gear 21. The structure is simple and easy to use.

[0031] like Figure 5As shown, the linear drive device includes a linear drive roller 23 that cooperates with the upstream support sleeve 3. The axis of the linear drive roller 23 is perpendicular to the axis of the upstream support sleeve 3. The linear drive roller 23 is rotatably mounted on a roller mounting frame 14. The roller mounting frame 14 is equipped with a linear drive motor 24 that drives the linear drive roller 23 to rotate via a transmission structure. An upstream mounting seat 25 is fixedly mounted on the upstream support sleeve 3. A drive cylinder 17 is fixedly mounted on the upstream mounting seat 25. The piston rod of the drive cylinder 17 connects to the roller mounting frame 14, driving the roller mounting frame 14 to move radially linearly along the upstream support sleeve 3. The upstream mounting seat 25 is equipped with a guide structure that connects to the roller mounting frame 14 to assist in guiding the sliding motion. The roller mounting frame 14 is provided with a notch 18 corresponding to the roller mounting frame 14. Similarly, the linear drive roller 23 can move closer to or away from the sampling tube 6 by driving the overall roller mounting frame 14 through the drive cylinder 17. Then, the linear drive motor 24 can drive the linear drive roller 23 to rotate, thereby effectively driving the sampling tube 6 to move linearly and change the sampling point. When rotating, friction between the linear drive roller 23 and the sampling tube 6 can be avoided. The notch 18 can also facilitate the avoidance when the roller mounting frame 14 moves. The guide structure can improve the stability of the drive cylinder 17. The guide rod 19 and the guide cylinder 20 are respectively fixedly installed on the roller mounting frame 14 and the upstream mounting seat 25. The driven helical gear 21 is coaxial with the linear drive roller 23, and the driving helical gear 22 is connected to the output shaft of the linear drive motor 24.

[0032] The upstream support sleeve 3 and the downstream support sleeve 4 support the rotating sampling gun to ensure accurate detection and meet the corresponding detection requirements. Since the chimney 1 will continue to be sampled after sampling, the support device does not need to be moved. It only needs to carry the sampling gun to complete the installation.

[0033] In this embodiment, the upstream support sleeve 3 and the downstream support sleeve 4 have the same structure. The upstream support sleeve 3 has three omnidirectional balls 10 evenly distributed around its circumference, and the cover plate 9 has two omnidirectional balls 10 evenly distributed on its surface. The omnidirectional balls 10 of the upstream support sleeve 3 are distributed at both ends. The upstream support sleeve 3 can ensure the formation of a groove to accommodate the sampling tube 6, which facilitates the installation of the sampling tube 6. Then, by covering it with the cover plate 9, the two omnidirectional balls 10 can press down on the sampling tube 6, ensuring that the omnidirectional balls 10 support the sampling tube 6 stably and accurately, thus improving the performance.

[0034] Furthermore, the fixed bracket is a height-adjustable, telescopic triangular bracket 2; it can adjust the support height of the sampling gun according to different chimney heights 1 to ensure good adaptability; the triangular telescopic bracket 2 is an existing structure on the market, so it will not be described in detail in the text.

[0035] The working principle of this embodiment is as follows: First, open the cover plates 9 of the upstream support sleeve 3 and the downstream support sleeve 4, then insert them into the sampling tube 6, and cover the cover plate 9 with bolts and nuts to fix it. Then, adjust the height of the triangular telescopic bracket 2 so that the sampling head 7 corresponds to the sampling inlet of the chimney 1. Drive the roller mounting bracket 14 through the drive cylinder 17 so that the linear drive roller 23 can approach the sampling tube 6. Then, the linear drive motor 24 can drive the linear drive roller 23 to rotate, and the sampling tube 6 moves linearly to enter the first sampling point. The linear drive roller 23 moves away from the sampling tube 6. Then, drive the integral roller mounting bracket 14 through the drive cylinder 17 so that the rotating drive roller 13 can approach the sampling tube 6. The rotating drive motor 15 can drive the rotating drive roller 13 to rotate, so that the sampling head 7 faces downward for sampling. After sampling is completed, rotate the drive roller 13 so that the sampling head 7 rotates upward. Then, rotate the drive roller 13 away from the sampling tube 6, and the linear drive roller 23 approaches the sampling tube 6 to transport to the second sampling point for sampling. Repeat the above operation.

[0036] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications and alterations to the technical solution of the present utility model without departing from its design spirit shall fall within the protection scope defined by the claims of the present utility model.

Claims

1. A support device for a low-concentration particulate matter sampling gun, comprising a fixed bracket, characterized in that: A support sleeve for supporting the sampling tube of the sampling gun is fixedly installed on the fixed bracket. The upper part of the support sleeve is provided with a placement inlet for inserting the sampling tube. The sampling tube is placed horizontally inside the support sleeve. A cover plate for sealing the placement inlet is hinged to the support sleeve at the placement inlet. A locking structure for easy locking and disassembly is provided between the cover plate and the support sleeve. A support structure for supporting the sampling tube to move and rotate is provided inside the support sleeve. An auxiliary structure for holding the sampling tube in place when sealing the placement inlet is provided on the cover plate. A rotation drive device and a linear drive device are provided on the support sleeve for driving the sampling tube to rotate and move linearly.

2. The low-concentration particulate matter sampling gun support device as described in claim 1, characterized in that: The supporting structure and the auxiliary structure are the same, both being omnidirectional spheres. Several omnidirectional spheres are provided and are installed in the supporting sleeve and on the cover plate through the circumference of the sphere base.

3. The low-concentration particulate matter sampling gun support device as described in claim 2, characterized in that: The support sleeve is provided in two parts, including an upstream support sleeve and a downstream support sleeve. The linear drive device is installed on the upstream support sleeve, and the rotary drive device is installed on the downstream support sleeve.

4. The low-concentration particulate matter sampling gun support device as described in claim 3, characterized in that: The rotation drive device includes a rotation drive roller that cooperates with the downstream support sleeve. The axis of the rotation drive roller is in the same direction as the axis of the downstream support sleeve. The rotation drive roller is rotatably mounted on a roller mounting frame. The roller mounting frame is provided with a rotation drive motor that drives the rotation drive roller to rotate through a transmission structure. A downstream mounting seat is fixedly mounted on the downstream support sleeve. A drive cylinder is fixedly mounted on the downstream mounting seat. The piston rod of the drive cylinder is connected to the roller mounting frame and drives the roller mounting frame to move linearly along the radial direction of the downstream support sleeve. The downstream mounting seat is provided with a guide structure that connects to the roller mounting frame to assist in guiding the sliding motion. The downstream support sleeve is provided with a notch corresponding to the roller mounting frame.

5. The low-concentration particulate matter sampling gun support device as described in claim 4, characterized in that: The linear drive device includes a linear drive roller that cooperates with an upstream support sleeve. The axis of the linear drive roller is perpendicular to the axis of the upstream support sleeve. The linear drive roller is rotatably mounted on a roller mounting frame. The roller mounting frame is equipped with a linear drive motor that drives the linear drive roller to rotate through a transmission structure. An upstream mounting seat is fixedly mounted on the upstream support sleeve. A drive cylinder is fixedly mounted on the upstream mounting seat. The piston rod of the drive cylinder is connected to the roller mounting frame and drives the roller mounting frame to move radially linearly along the upstream support sleeve. The upstream mounting seat is equipped with a guide structure that connects to the roller mounting frame to assist in guiding and sliding. The upstream support sleeve is equipped with a notch corresponding to the roller mounting frame.

6. The low-concentration particulate matter sampling gun support device as described in claim 5, characterized in that: The upstream support sleeve and the downstream support sleeve have the same structure. The upstream support sleeve has three omnidirectional balls evenly distributed around its circumference, and the cover plate has two omnidirectional balls evenly distributed. The omnidirectional balls of the upstream support sleeve are distributed at both ends.

7. The low-concentration particulate matter sampling gun support device as described in claim 6, characterized in that: The fixed bracket is a height-adjustable, telescopic triangular bracket.

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