CN215525706U - Probe blowback mechanism of hazardous gas detection device - Google Patents
Probe blowback mechanism of hazardous gas detection device Download PDFInfo
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- CN215525706U CN215525706U CN202121413259.0U CN202121413259U CN215525706U CN 215525706 U CN215525706 U CN 215525706U CN 202121413259 U CN202121413259 U CN 202121413259U CN 215525706 U CN215525706 U CN 215525706U
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Abstract
The utility model provides a probe back-blowing mechanism of a hazardous gas detection device, which comprises a mounting base plate, a probe protective shell, a probe dust screen, a gas probe, a back-blowing pipe, an intermittent gas supply assembly, a back-blowing gas outlet pipe, a back-blowing branch pipe and a vibration assembly, wherein the gas probe is arranged on the upper surface of the mounting base plate, the probe dust screen is arranged outside the gas probe, the probe protective shell is arranged outside the probe dust screen, the back-blowing pipe is arranged inside the mounting base plate, the intermittent gas supply assembly is arranged in the back-blowing pipe, the back-blowing gas outlet pipe and the back-blowing branch pipe are connected to the left side and the right side of the top end of the back-blowing pipe, the top end of the back-blowing branch pipe is provided with the vibration assembly, the effect of intermittent air pumping is achieved, when the vibration assembly is impacted by compressed air of intermittent gas supply, the probe dust screen is driven to periodically vibrate up and down, and stubborn dust can be discharged from the probe dust screen, and the back blowing gas pumped out intermittently blows the dust-proof net out of the probe dust-proof net, thereby increasing the cleaning effect.
Description
Technical Field
The utility model relates to the technical field of gas detection, in particular to a probe back-blowing mechanism of a dangerous gas detection device.
Background
The dangerous gas detector is an instrument and meter tool for detecting gas leakage concentration, which comprises: portable gas detectors, hand-held gas detectors, stationary gas detectors, online gas detectors, and the like. The gas probe is mainly used for detecting the types of gases existing in the environment and giving an alarm in time, and is a sensor for detecting the components and the content of the gases.
The existing general cleaning mode is that compressed air is pumped into the dust screen by using a back-blowing pipe of a back-blowing device, and the dust attached to the dust screen is blown out from inside to outside, but the cleaning effect of the mode is not ideal, and because the air pressure of the compressed air blown out by the back-blowing pipe is invariable, the dust which is not firmly attached may be blown up from the dust screen, but the dust which is more firmly attached to the dust screen is easy to be blown out, so that part of the dust which is hard to block in the net seam of the dust screen is still generated after the back-blowing operation, resulting in poor probe cleaning.
Disclosure of Invention
According to the above technical problems, the present invention provides a probe back-blowing mechanism of a hazardous gas detection device, which is characterized by comprising a mounting base plate, a probe protection shell, a probe dust screen, a gas probe, a back-blowing pipe, an intermittent gas supply assembly, a back-blowing gas outlet pipe, a back-blowing branch pipe and a vibration assembly, wherein the gas probe is arranged in the center of the upper surface of the mounting base plate, the probe dust screen is arranged outside the gas probe, the probe protection shell is arranged outside the probe dust screen, the bottom end of the probe protection shell is fixed on the mounting base plate, vent holes are uniformly arranged on the probe protection shell, the back-blowing pipe is arranged in the center of the mounting base plate, the cross section of the back-blowing pipe is of a rectangular structure, the intermittent gas supply assembly is arranged in the back-blowing pipe, the back-blowing gas outlet pipe is connected to the left side and the right side of the top end of the back-blowing pipe, the back-blowing branch pipe is also connected to the left side and the right side of the top end of the back-blowing pipe, the back-blowing branch pipe is positioned on the outer side of the back-blowing air outlet pipe, the top end of the back-blowing branch pipe is provided with a vibration assembly, and the bottom end of the probe dust screen is connected with the vibration assembly;
the intermittent air supply component comprises a small impeller, a small transmission gear, a large transmission gear and an intermittent air supply rotary column, the intermittent air supply rotary column and the small impeller are both arranged in the blowback pipe, the small impeller is positioned on the right side below the intermittent air supply rotary column, a circular through hole is vertically arranged in the center of the intermittent air supply rotary column, connecting shafts are arranged at the front end and the rear end of the intermittent air supply rotary column and the front end and the rear end of the small impeller, the connecting shaft, the intermittent air supply rotating column and the small impeller are of an integrated structure, the intermittent air supply rotating column and the small impeller are arranged on the inner wall of the back flushing pipe through the connecting shaft in the front and back direction, the small transmission gear is arranged on and fixedly connected with a connecting shaft at the front end of the small impeller, the large transmission gear is arranged on and fixedly connected with a connecting shaft at the front end of the intermittent air supply rotary column, and the small transmission gear is meshed with the large transmission gear;
the utility model discloses a vibration probe, including mounting plate, vibration subassembly, piston groove, blowback branch union coupling, piston groove, piston plate and spring, the left and right sides of the inside of mounting plate is seted up to the piston groove, piston groove bottom respectively with blowback branch connection, slidable mounting has the piston plate in the piston groove, the piston inslot still is provided with the spring, spring one end is connected with the piston plate, the spring other end and piston inslot wall connection, piston plate top is connected with the probe dust screen.
The utility model has the beneficial effects that:
the utility model is provided with an intermittent air supply component and a vibration component, when a probe dust screen is subjected to back blowing operation each time, constant compressed air is blown into a back blowing pipe, a small impeller of the intermittent air supply component rotates along with the intermittent air supply component, and the intermittent air supply rotary column is driven to periodically rotate through the transmission of a small transmission gear and a large transmission gear The structure enables the vibration component to drive the probe dustproof net to vibrate up and down periodically during back flushing, so that relatively stubborn dust can be vibrated out of the net gap of the probe dustproof net, and the back flushing gas pumped out intermittently blows the dust out of the probe dustproof net, and the cleaning effect during back flushing is improved.
Drawings
FIG. 1 is a cross-sectional view of a front view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic view showing the structure of the intermittent air supply assembly according to the present invention.
As shown in the figure: 1. mounting a bottom plate; 2. a probe protective case; 3. a probe dust screen; 4. a gas probe; 5. a blowback pipe; 6. a blowback air outlet pipe; 7. a back flushing branch pipe; 8. air holes are formed; 9. a small impeller; 10. a small drive gear; 11. a large transmission gear; 12. intermittent air supply rotary column; 13. a circular through hole; 14. a connecting shaft; 15. A piston groove; 16. a piston plate; 17. a spring.
Detailed Description
Example 1
The utility model provides a probe back-blowing mechanism of a hazardous gas detection device, which is characterized by comprising an installation bottom plate 1, a probe protective shell 2, a probe dustproof net 3, a gas probe 4, a back-blowing pipe 5, an intermittent gas supply assembly, a back-blowing gas outlet pipe 6, a back-blowing branch pipe 7 and a vibration assembly, wherein the center of the upper surface of the installation bottom plate 1 is provided with the gas probe 4, the outside of the gas probe 4 is provided with the probe dustproof net 3, the outside of the probe dustproof net 3 is provided with the probe protective shell 2, the bottom end of the probe protective shell 2 is fixed on the installation bottom plate 1, the probe protective shell 2 is uniformly provided with vent holes 8, the center inside of the installation bottom plate 1 is provided with the back-blowing pipe 5, the cross section of the back-blowing pipe 5 is of a rectangular structure, the back-blowing gas supply assembly is arranged in the back-blowing pipe 5, the left side and the right side of the top end of the back-blowing gas outlet pipe 6 are also connected with the back-blowing branch pipes 7, the back flushing branch pipe 7 is positioned on the outer side of the back flushing air outlet pipe 6, the top end of the back flushing branch pipe 7 is provided with a vibration component, and the bottom end of the probe dust screen 3 is connected with the vibration component;
the intermittent air supply component comprises a small impeller 9 and a small transmission gear 10, the intermittent air supply rotary column comprises a large transmission gear 11 and an intermittent air supply rotary column 12, wherein the intermittent air supply rotary column 12 and a small impeller 9 are arranged in a back-flushing pipe 5, the small impeller 9 is positioned on the right side below the intermittent air supply rotary column 12, a circular through hole 13 is vertically formed in the center of the intermittent air supply rotary column 12, connecting shafts 14 are arranged at the front end and the rear end of the intermittent air supply rotary column 12 and the front end and the rear end of the small impeller 9 respectively, the connecting shafts 14, the intermittent air supply rotary column 12 and the small impeller 9 are of an integrated structure, the front end and the rear end of the intermittent air supply rotary column 12 and the small impeller 9 are installed on the inner wall of the back-flushing pipe 5 through the connecting shafts 14, a small transmission gear 10 is arranged on the connecting shaft 14 at the front end of the small impeller 9 and is fixedly connected with the small transmission gear 10, the large transmission gear 11 is arranged on the connecting shaft 14 at the front end of the intermittent air supply rotary column 12 and is fixedly connected with the small transmission gear 10 and meshed with the large transmission gear 11;
the vibration subassembly includes piston groove 15, piston plate 16 and spring 17, and the left and right sides in mounting plate 1's inside is seted up to piston groove 15, and piston groove 15 bottom is connected with blowback branch pipe 7 respectively, and slidable mounting has piston plate 16 in the piston groove 15, still is provided with spring 17 in the piston groove 15, and spring 17 one end is connected with piston plate 16, and the spring 17 other end and 15 interior wall connections in piston groove, and the 16 tops of piston plate are connected with probe dust screen 3.
Example 2
The bottom end of a blowback pipe 5 of the utility model is connected with an external air pump, when the utility model is used for blowback of dust on a probe dust screen 3 by using the blowback pipe 5, the external air pump pumps compressed air upwards from the blowback pipe 5, and blows a small impeller 9 in the blowback pipe 5 to rotate, the small impeller 9 drives a small transmission gear 10 to rotate through a connecting shaft 14, the small transmission gear 10 drives a large transmission gear 11 to rotate, the large transmission gear 11 drives an intermittent air supply rotary column 12 to rotate in the blowback pipe 5 through the connecting shaft 14, as the intermittent air supply rotary column 12 is provided with a circular through hole 13, when the circular through hole 13 rotates to be parallel with the blowback pipe 5, the compressed air can be blown upwards through the circular through hole 13, when the circular through hole 13 rotates to be vertical to the blowback pipe 5, the compressed air can not pass through the intermittent air supply rotary column 12, the intermittent air supply rotary column 12 rotates periodically, thereby achieving the effect of closing when the blowback pipe 5 is communicated, with this intermittent type air feed subassembly can reach the intermittent type pump air function of blowback pipe 5, the compressed air of intermittent type pump income blows in blowback branch pipe 7 from blowback pipe 5, and strike the piston plate 16 of vibration subassembly repeatedly, make piston plate 16 upwards promote in piston groove 15 when having the air pump, the air stops to pump time and moves down under spring 17's effect and resets, the air of intermittent type pump income has both realized the reciprocal up-and-down motion of piston plate 16 in piston groove 15 to blowback branch pipe 7 like this, piston plate 16 drives the probe dust screen 3 of top and also up-and-down reciprocating vibration, shake the interior stubborn dust of probe dust screen 3 and fall, the air of intermittent type pump income also gets into blowback outlet duct 6 in the blowback pipe 5 simultaneously, outwards blow off the dust that shakes and falls to the probe protective housing 2 outside on the probe dust screen 3.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. While the utility model has been described with respect to the above embodiments, it will be understood by those skilled in the art that the utility model is not limited to the above embodiments, which are described in the specification and illustrated only to illustrate the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (3)
1. A probe back-blowing mechanism of a hazardous gas detection device is characterized by comprising a mounting base plate, a probe protective shell, a probe dust screen, a gas probe, a back-blowing pipe, an intermittent gas supply assembly, a back-blowing outlet pipe, a back-blowing branch pipe and a vibration assembly, wherein the gas probe is arranged in the center of the upper surface of the mounting base plate, the probe dust screen is arranged outside the gas probe, the probe protective shell is arranged outside the probe dust screen, the bottom end of the probe protective shell is fixed on the mounting base plate, the back-blowing pipe is arranged in the center inside the mounting base plate, the cross section of the back-blowing pipe is of a rectangular structure, the intermittent gas supply assembly is arranged in the back-blowing pipe, the back-blowing outlet pipe is connected to the left side and the right side of the top end of the back-blowing pipe, the back-blowing branch pipe is also connected to the left side and the right side of the top end of the back-blowing outlet pipe, and the back-blowing branch pipe is positioned outside the back-blowing outlet pipe, the top end of the back flushing branch pipe is provided with a vibration assembly, and the bottom end of the probe dustproof net is connected with the vibration assembly;
the intermittent air supply assembly comprises a small impeller, a small transmission gear, a large transmission gear and an intermittent air supply rotary column, the intermittent air supply rotary column and the small impeller are arranged in a back flushing pipe, the small impeller is positioned on the right side below the intermittent air supply rotary column, a circular through hole is vertically formed in the center of the intermittent air supply rotary column, connecting shafts are arranged at the front end and the rear end of the intermittent air supply rotary column and the small impeller, the front end and the rear end of the intermittent air supply rotary column and the rear end of the small impeller are mounted on the inner wall of the back flushing pipe through the connecting shafts, the small transmission gear is arranged on the connecting shaft at the front end of the small impeller and fixedly connected with the connecting shaft, the large transmission gear is arranged on the connecting shaft at the front end of the intermittent air supply rotary column and fixedly connected with the connecting shaft, and is meshed with the large transmission gear;
the utility model discloses a vibration probe, including mounting plate, vibration subassembly, piston groove, blowback branch union coupling, piston groove, piston plate and spring, the left and right sides of the inside of mounting plate is seted up to the piston groove, piston groove bottom respectively with blowback branch connection, slidable mounting has the piston plate in the piston groove, the piston inslot still is provided with the spring, spring one end is connected with the piston plate, the spring other end and piston inslot wall connection, piston plate top is connected with the probe dust screen.
2. The probe blowback mechanism of a hazardous gas detecting device of claim 1, wherein said probe protecting shell is uniformly provided with air holes.
3. The probe blowback mechanism of a hazardous gas detecting device of claim 1, wherein the connecting shaft is integrated with the intermittent gas supply rotary column and the small impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121413259.0U CN215525706U (en) | 2021-06-24 | 2021-06-24 | Probe blowback mechanism of hazardous gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121413259.0U CN215525706U (en) | 2021-06-24 | 2021-06-24 | Probe blowback mechanism of hazardous gas detection device |
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| CN215525706U true CN215525706U (en) | 2022-01-14 |
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| CN202121413259.0U Active CN215525706U (en) | 2021-06-24 | 2021-06-24 | Probe blowback mechanism of hazardous gas detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472287A (en) * | 2022-02-14 | 2022-05-13 | 陈小兵 | Maintenance device for electromechanical maintenance of highway |
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2021
- 2021-06-24 CN CN202121413259.0U patent/CN215525706U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472287A (en) * | 2022-02-14 | 2022-05-13 | 陈小兵 | Maintenance device for electromechanical maintenance of highway |
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