Supporting device for low-concentration particulate matter sampling gun

Abstract

The invention 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] The present invention relates to the technical field of particle concentration sampling and detection, and in particular to a low-concentration particle sampling gun support device. Background Art

[0002] The sampling gun is used to sample gas from the environment to be tested, and the sampled gas is then passed into the concentration detection instrument to obtain the concentration value. At present, the detection of dust concentration in chimneys is generally fixed, that is, the sampling gun is installed near the chimney for dust concentration detection. This type of detection cannot be moved during the detection, and multi-point sampling is required. Therefore, manual movement of the sampling gun to different detection points is required, and each sampling takes a long time, which causes workers to wait for each sampling to be completed before changing the detection point, which is a great waste of manpower and consumes workers' energy. Since chimneys are generally open-air environments, under special circumstances, manpower cannot support the entire sampling process. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: a low-concentration particulate matter sampling gun support device, which can automatically rotate and transport the sampling gun after supporting it, reducing manual participation and improving sampling efficiency and accuracy.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a low-concentration particulate matter sampling gun support device, including a fixed bracket, a support sleeve supporting a sampling tube of the sampling gun is fixedly installed on the fixed bracket, a placement inlet for the sampling tube is provided on the upper part of the support sleeve, the sampling tube is horizontally placed in the support sleeve, a cover plate is hingedly installed at the placement inlet on the support sleeve to block the placement inlet, a locking structure for convenient 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 in the support sleeve, an auxiliary structure for supporting the sampling tube when blocking 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 solution, the supporting structure and the auxiliary structure are both universal balls, and there are several universal balls installed in the supporting sleeve and on the cover plate through the circumference of the ball seat.

[0006] As a preferred solution, two support sleeves are provided, including an upstream support sleeve and a downstream support sleeve. The linear drive device is installed on the upstream support sleeve, and the rotation drive device is installed on the downstream support sleeve.

[0007] As a preferred solution, the rotation driving device includes a rotation driving roller cooperating with the downstream support sleeve. The axis of the rotation driving roller is in the same direction as the axis of the downstream support sleeve. The rotation driving roller is rotatably mounted on a roller mounting frame. A rotation driving motor for driving the rotation driving roller to rotate through a transmission structure is provided on the roller mounting frame. A downstream mounting seat is fixedly installed on the downstream support sleeve. A driving cylinder is fixedly installed on the downstream mounting seat. The piston rod of the driving cylinder is connected to the roller mounting frame to drive the roller mounting frame to linearly move along the radial direction of the downstream support sleeve. A guiding structure for assisting in guiding and sliding and connected to the roller mounting frame is provided on the downstream mounting seat. A notch corresponding to the roller mounting frame is provided on the downstream support sleeve.

[0008] As a preferred solution, the linear driving device includes a linear driving roller cooperating with the upstream support sleeve. The axis of the linear driving roller is perpendicular to the axis of the upstream support sleeve. The linear driving roller is rotatably mounted on a roller mounting frame. A linear driving motor for driving the linear driving roller to rotate through a transmission structure is provided on the roller mounting frame. An upstream mounting seat is fixedly installed on the upstream support sleeve. A driving cylinder is fixedly installed on the upstream mounting seat. The piston rod of the driving cylinder is connected to the roller mounting frame to drive the roller mounting frame to linearly move along the radial direction of the upstream support sleeve. A guiding structure for assisting in guiding and sliding and connected to the roller mounting frame is provided on the upstream mounting seat. A notch corresponding to the roller mounting frame is provided on the upstream support sleeve.

[0009] As a preferred solution, the upstream support sleeve and the downstream support sleeve have the same structure. Three universal balls are evenly distributed on the circumference of the upstream support sleeve. Two universal balls are evenly distributed on the cover plate. The universal balls of the upstream support sleeve are all distributed at both end ports.

[0010] As a preferred solution, the fixed bracket is a triangular telescopic bracket that can be lifted and telescopically adjusted.

[0011] After adopting the above technical solution, the effect of the present invention is as follows: since the low-concentration particulate matter sampling gun support device includes a fixed bracket, a support sleeve supporting the sampling tube of the sampling gun is fixedly installed on the fixed bracket, a placement inlet for the sampling tube is provided on the upper part of the support sleeve, the sampling tube is horizontally placed in the support sleeve, a cover plate is hingedly installed on the support sleeve at the placement inlet to block the placement inlet, a locking structure for convenient locking and disassembly is provided between the cover plate and the support sleeve, a support structure supporting the sampling tube to be movable and rotatable is provided in the support sleeve, an auxiliary structure for supporting the sampling tube when blocking 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; firstly Open the cover, place the sampling tube of the sampling gun into the supporting sleeve, support it with the supporting structure, then close the cover, support the supporting sleeve with the auxiliary structure, then drive the sampling tube to rotate through the rotating drive device so that the sampling head of the gun head faces upward to avoid drawing in gas first, then the linear drive device drives the sampling tube to move linearly to the first sampling point, and then the rotating drive device drives the sampling head downward to start sampling at the first sampling point. After the sampling is completed, repeat the above operation, and then drive the sampling tube to rotate so that the sampling head of the gun head faces upward, and then move linearly to the second sampling point, and so on; in this way, there is no need for manual holding and supervision of the sampling gun, which reduces the tediousness of manual labor; the device can automatically rotate and transport the sampling gun after supporting it, reducing manual participation and improving sampling efficiency and accuracy.

[0012] Since the supporting structure and the auxiliary structure are both universal balls, there are several universal balls and they are installed in the supporting sleeve and the cover plate through the circumference of the ball seat; the universal balls 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] 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 rotation drive device is installed on the downstream support sleeve; the upstream support sleeve and the downstream support sleeve can improve the stability of the placement of the sampling gun during use, and can avoid the support sleeve from being too long, reduce production costs, and reduce occupied space.

[0014] Also, since the rotation driving device includes a rotation driving roller that cooperates with the downstream support sleeve, the axis of the rotation driving roller is in the same direction as the axis of the downstream support sleeve. The rotation driving roller is rotatably mounted on a roller mounting frame, and a rotation driving motor for driving the rotation driving roller to rotate through a transmission structure is provided on the roller mounting frame. A downstream mounting seat is fixedly mounted on the downstream support sleeve, and a driving cylinder is fixedly mounted on the downstream mounting seat. The piston rod of the driving cylinder is connected to the roller mounting frame to drive the roller mounting frame to linearly move along the radial direction of the downstream support sleeve. A guiding structure for assisting in guiding and sliding connection with the roller mounting frame is provided on the downstream mounting seat, and a notch corresponding to the roller mounting frame is provided on the downstream support sleeve. After the sampling tube is supported and restricted by the universal balls, the driving cylinder drives the entire roller mounting frame so that the rotation driving roller can approach or move away from the sampling tube. Then, the rotation driving motor can drive the rotation driving roller to rotate, thereby effectively driving the sampling tube to rotate and adjusting the orientation of the sampling head. At the same time, when linearly moving, it can also avoid friction between the rotation driving roller and the sampling tube. The notch can also facilitate the avoidance during the movement of the roller mounting frame, and the guiding structure can improve the stability of the driving cylinder drive.

[0015] Also, since the linear driving device includes a linear driving roller that cooperates with the upstream support sleeve, the axis of the linear driving roller is perpendicular to the axis of the upstream support sleeve. The linear driving roller is rotatably mounted on a roller mounting frame, and a linear driving motor for driving the linear driving roller to rotate through a transmission structure is provided on the roller mounting frame. An upstream mounting seat is fixedly mounted on the upstream support sleeve, and a driving cylinder is fixedly mounted on the upstream mounting seat. The piston rod of the driving cylinder is connected to the roller mounting frame to drive the roller mounting frame to linearly move along the radial direction of the upstream support sleeve. A guiding structure for assisting in guiding and sliding connection with the roller mounting frame is provided on the upstream mounting seat, and a notch corresponding to the roller mounting frame is provided on the upstream support sleeve. Similarly to the above, the driving cylinder drives the entire roller mounting frame so that the linear driving roller can approach or move away from the sampling tube. Then, the linear driving motor can drive the linear driving roller to rotate, thereby effectively driving the sampling tube to linearly move and changing the sampling point. When rotating, it can also avoid friction between the linear driving roller and the sampling tube. The notch can also facilitate the avoidance during the movement of the roller mounting frame, and the guiding structure can improve the stability of the driving cylinder drive.

[0016] Also, since the upstream support sleeve and the downstream support sleeve have the same structure, three universal balls are circumferentially and evenly distributed on the upstream support sleeve, and two universal balls are evenly distributed on the cover plate. The universal balls on the upstream support sleeve are all distributed at both end ports; this can ensure that the universal balls support the sampling tube stably and accurately, improving the use effect.

[0017] Also, since the fixed bracket is a triangular telescopic bracket that can be lifted and telescopically adjusted; it can adjust the support height of the sampling gun according to different chimney heights to ensure good adaptability. Description of the Drawings

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

[0019] Figure 1 is a perspective view of an embodiment of the present invention;

[0020] Figure 2 is a front view of an embodiment of the present invention;

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

[0022] Figure 4 is a schematic structural view inside the downstream support sleeve of an embodiment of the present invention;

[0023] Figure 5 is a schematic structural view inside the upstream support sleeve of an embodiment of the present invention;

[0024] In the accompanying drawings: 1, chimney; 2, triangular telescopic support; 3, upstream support sleeve; 4, downstream support sleeve; 5, outer shell; 6, sampling tube; 7, sampling head; 8, placement inlet; 9, cover plate; 10, universal ball; 11, ball seat; 12, locking pressure plate; 13, rotation driving roller; 14, roller mounting frame; 15, rotation driving motor; 16, downstream mounting seat; 17, driving cylinder; 18, notch; 19, guide rod; 20, guide cylinder; 21, driven bevel gear; 22, driving bevel gear; 23, linear driving roller; 24, linear driving motor; 25, upstream mounting seat. Specific embodiments

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

[0026] As Figures 1 to 5 shown, a support device for a low-concentration particulate matter sampling gun includes a fixed support, on which a support sleeve for supporting the sampling tube 6 of the sampling gun is fixedly installed. A placement inlet 8 for inserting the sampling tube 6 is provided at the upper part of the support sleeve. The sampling tube 6 is horizontally placed inside the support sleeve. A cover plate 9 for blocking the placement inlet 8 is hingedly installed at the placement inlet 8 of the support sleeve. A locking structure for convenient locking and disassembly is provided between the cover plate 9 and the support sleeve. A support structure for supporting the sampling tube 6 to move and rotate is provided inside the support sleeve. An auxiliary structure for pressing against the sampling tube 6 when blocking the placement inlet 8 is provided on the cover plate 9. A rotation driving device and a linear driving device for driving the sampling tube 6 to rotate and move linearly are provided on the support sleeve.

[0027] In this embodiment, the support structure and the auxiliary structure are the same, both being universal balls 10. A number of universal balls 10 are provided and are circumferentially installed in the support sleeve and on the cover plate 9 through ball seats 11. The universal balls 10 can ensure arbitrary rotation, so as to adapt to the rotation and linear movement of the sampling tube 6, and improve the stability of the support and movement of the sampling tube 6.

[0028] As Figure 2 and Figure 3 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. Fixing the sampling gun can be completed by clamping the sampling tube 6 in the upstream support sleeve 3 and the downstream support sleeve 4 and then locking it with the cover plate 9, ensuring stable support, and can avoid the overlong length of the support sleeve, reduce production costs and reduce the occupied space. The sampling gun is an existing structure on the market. Patent No. 202010141167.5 discloses a portable dust concentration detection device, which details the overall structure of the sampling gun, so it will not be described in detail in this text.

[0029] There is a hinge hinge between the cover plate 9 and the support sleeve, and locking pressure plates 12 are provided on both the cover plate 9 and the support sleeve. The locking structure is a bolt and nut structure passing through the locking pressure plate 12, which can effectively ensure that the cover plate 9 can effectively press the sampling tube 6.

[0030] As Figure 4As shown, the rotation driving device includes a rotation driving roller 13 that cooperates with the downstream support sleeve 4. The axis of the rotation driving roller 13 is in the same direction as the axis of the downstream support sleeve 4. The rotation driving roller 13 is rotatably mounted on a roller mounting frame 14. A rotation driving motor 15 for driving the rotation driving roller 13 to rotate through a transmission structure is provided on the roller mounting frame 14. A downstream mounting seat 16 is fixedly mounted on the downstream support sleeve 4. A driving cylinder 17 is fixedly mounted on the downstream mounting seat 16. The piston rod of the driving cylinder 17 is connected to the roller mounting frame 14 to drive the roller mounting frame 14 to linearly move along the radial direction of the downstream support sleeve 4. A guiding structure for assisting in guiding and sliding connection with the roller mounting frame 14 is provided on the downstream mounting seat 16. A notch 18 corresponding to the roller mounting frame 14 is provided on the downstream support sleeve 4; after the sampling tube 6 is supported and restricted by the universal ball 10, the driving cylinder 17 drives the entire roller mounting frame 14 so that the rotation driving roller 13 can approach or move away from the sampling tube 6. Then, the rotation driving motor 15 can drive the rotation driving 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, when linearly moving, it can also avoid friction between the rotation driving roller 13 and the sampling tube 6. The notch 18 can also facilitate the avoidance during the movement of the roller mounting frame 14. The guiding structure can improve the stability of the driving by the driving cylinder 17; the guiding structure is a guiding rod 19 fixedly mounted on the roller mounting frame 14. The guiding rod 19 penetrates through the downstream mounting seat 16. A guiding cylinder 20 is fixedly mounted on the downstream mounting seat 16. The transmission structure is a helical gear transmission. The driven helical gear 21 is rotatably and synchronously mounted on the roller mounting frame 14 coaxially with the rotation driving roller 13. The driving helical gear 22 is connected to the output shaft of the rotation driving motor 15 to drive the driven helical gear 21. The structure is simple and easy to use.

[0031] As Figure 5As shown in the figure, 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 installed on the roller mounting frame 14. A linear drive motor 24 for driving the linear drive roller 23 to rotate through a transmission structure is provided on the roller mounting frame 14. An upstream mounting seat 25 is fixedly installed on the upstream support sleeve 3. A drive cylinder 17 is fixedly installed on the upstream mounting seat 25. The piston rod of the drive cylinder 17 is connected to the roller mounting frame 14 to drive the roller mounting frame 14 to linearly move along the radial direction of the upstream support sleeve 3. A guiding structure for connecting with the roller mounting frame 14 for auxiliary guiding and sliding is provided on the upstream mounting seat 25. A notch 18 corresponding to the roller mounting frame 14 is provided on the upstream support sleeve 3. Similarly, by driving the entire roller mounting frame 14 with the drive cylinder 17, the linear drive roller 23 can approach or move away from the sampling tube 6. Then, the linear drive motor 24 can drive the linear drive roller 23 to rotate, thereby effectively driving the sampling tube 6 to linearly move and changing the sampling point. Friction between the linear drive roller 23 and the sampling tube 6 can be avoided during rotation. The notch 18 can also facilitate the avoidance when the roller mounting frame 14 moves. The guiding structure can improve the stability of the drive by the drive cylinder 17. The guiding rod 19 and the guiding cylinder 20 are respectively fixedly installed on the roller mounting frame 14 and the upstream mounting seat 25. The driven bevel gear 21 is coaxial with the linear drive roller 23, and the driving bevel gear 22 is connected to the output shaft of the linear drive motor 24.

[0032] Supporting and rotating the sampling gun through the upstream support sleeve 3 and the downstream support sleeve 4 respectively can ensure accurate detection, meet the corresponding detection requirements, and the chimney 1 will continue to be sampled repeatedly next time after sampling. Therefore, this support device does not need to be carried and moved, and only the sampling gun needs to be carried for installation.

[0033] In this embodiment, the upstream support sleeve 3 and the downstream support sleeve 4 have the same structure. Three universal balls 10 are evenly distributed on the circumference of the upstream support sleeve 3. Two universal balls 10 are evenly distributed on the cover plate 9. The universal balls 10 of the upstream support sleeve 3 are all distributed at both end ports. Through the upstream support sleeve 3, a groove for accommodating the sampling tube 6 can be ensured, which is convenient for clamping the sampling tube 6. Then, covering the cover plate 9 can make the two universal balls 10 press the sampling tube 6, ensuring that the universal balls 10 support the sampling tube 6 stably and accurately, and improving the use effect.

[0034] Furthermore, the fixed bracket is a triangular telescopic bracket 2 that can be adjusted for lifting and telescoping; it can adjust the support height of the sampling gun according to the height of different chimneys 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] Working principle of this embodiment: First, open the cover plates 9 of the upstream support sleeve 3 and the downstream support sleeve 4, then snap the sampling tube 6 into them, cover the cover plates 9 and fix them with bolts and nuts. Then, lift and adjust 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 driving cylinder 17 so that the linear driving roller 23 can approach the sampling tube 6. Then, the linear driving motor 24 can drive the linear driving roller 23 to rotate, and the sampling tube 6 moves linearly to enter the first sampling point. The linear driving roller 23 moves away from the sampling tube 6. Then, drive the overall roller mounting bracket 14 through the driving cylinder 17 so that the rotary driving roller 13 can approach the sampling tube 6. The rotary driving motor 15 can drive the rotary driving roller 13 to rotate, making the sampling head 7 face downward for sampling. When the sampling is completed, the rotary driving roller 13 rotates the sampling head 7 upward. Then, the rotary driving roller 13 moves away from the sampling tube 6, and the linear driving roller 23 approaches the sampling tube 6 and conveys it to the second sampling point for sampling. Repeat the above operations.

[0036] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and modifications made to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

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. A placement inlet for inserting the sampling tube is provided at the upper part of the support sleeve. The sampling tube is horizontally placed inside the support sleeve. A cover plate for blocking the placement inlet is hingedly installed at the placement inlet of the support sleeve. A locking structure for facilitating 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 blocking the placement inlet is provided on the cover plate. A rotation driving device and a linear driving device for driving the sampling tube to rotate and move linearly are provided on the support sleeve.

2. The support device for a low-concentration particulate matter sampling gun as described in claim 1, wherein: The support structure and the auxiliary structure are the same and are all universal balls. There are several universal balls, which are circumferentially installed in the support sleeve and on the cover plate through ball seats.

3. A support device for a low-concentration particulate matter sampling gun as described in claim 2, characterized in that: There are two support sleeves, including an upstream support sleeve and a downstream support sleeve. The linear driving device is installed on the upstream support sleeve, and the rotation driving device is installed on the downstream support sleeve.

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

5. A support device for a low-concentration particulate matter sampling gun as described in claim 4, characterized in that: The linear driving device includes a linear driving roller cooperating with the upstream support sleeve. The axis of the linear driving roller is perpendicular to the axis of the upstream support sleeve. The linear driving roller is rotatably installed on a roller mounting frame. A linear driving motor for driving the linear driving roller to rotate through a transmission structure is provided on the roller mounting frame. An upstream mounting seat is fixedly installed on the upstream support sleeve. A driving cylinder is fixedly installed on the upstream mounting seat. The piston rod of the driving cylinder is connected to the roller mounting frame to drive the roller mounting frame to move linearly along the radial direction of the upstream support sleeve. A guiding structure for assisting in guiding and sliding and connected to the roller mounting frame is provided on the upstream mounting seat. A notch corresponding to the roller mounting frame is provided on the upstream support sleeve.

6. A support device for a low-concentration particulate matter sampling gun as described in claim 5, characterized in that: The upstream support sleeve and the downstream support sleeve have the same structure. Three universal balls are circumferentially distributed on the upstream support sleeve, and two universal balls are evenly distributed on the cover plate. The universal balls on the upstream support sleeve are all distributed at both ends of the port.

7. A support device for a low-concentration particulate matter sampling gun as described in claim 6, characterized in that: The fixed bracket is a triangular telescopic bracket that can be lifted and telescoped for adjustment.

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