CN119178855A - Detection device for calibrating gas detector - Google Patents
Detection device for calibrating gas detector Download PDFInfo
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- CN119178855A CN119178855A CN202411699858.1A CN202411699858A CN119178855A CN 119178855 A CN119178855 A CN 119178855A CN 202411699858 A CN202411699858 A CN 202411699858A CN 119178855 A CN119178855 A CN 119178855A
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- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 239000004744 fabric Substances 0.000 claims description 23
- 230000007246 mechanism Effects 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 238000012795 verification Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 50
- 230000013011 mating Effects 0.000 description 12
- 239000012535 impurity Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0006—Calibrating gas analysers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
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- Combustion & Propulsion (AREA)
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Abstract
The invention relates to the technical field of verification and calibration devices, in particular to a detection device for calibrating a gas detector. The utility model provides a detection device that gas detector calibration was used, includes the casing the bottom of casing is provided with buffer, runs through the intercommunication in one side of casing and has the intake pipe, and the opposite side runs through the intercommunication and has output tube and bypass pipe, the intake pipe is located the inside one end of casing and passes through three-way pipe and output tube and bypass pipe intercommunication, and the intake pipe has standard concentration gas cylinder through the pipeline intercommunication be provided with output flowmeter on the output tube be provided with relief pressure valve and bypass flowmeter on the bypass pipe, fixedly connected with connector on the exit end of output tube, the embedding is provided with touch-control display on the outer wall of casing. The connector provided by the invention can be connected with alarms of various different gas detectors, and the output flowmeter arranged in the shell can accurately measure the gas flow passing through the output pipe and display the gas flow on the touch display.
Description
Technical Field
The invention relates to the technical field of verification and calibration devices, in particular to a detection device for calibrating a gas detector.
Background
In the industrial production processes of petroleum, chemical industry, natural gas and the like, the leakage of combustible gas is a common potential safety hazard. The leakage of combustible gas may cause damage to equipment, environmental pollution, and even serious explosion accidents, and thus, in recent years, gas detectors have been widely used, and demands thereof have been on the trend of rapid increase. Before leaving the factory, the gas detector needs to be subjected to working procedures such as electrifying aging, calibration, testing and the like to remove invalid and defective products, so that the calibration device needs to be calibrated by using the gas detector. However, the gas detector comprises two different types of diffusion type alarms and suction type alarms, and the gas detector verification calibration device conforming to the corresponding type needs to be selected when verification calibration is carried out, so that time is more spent, and economic cost is higher when different gas detector verification calibration devices are purchased.
Disclosure of Invention
The invention aims to provide a detection device for calibrating a gas detector, which solves the problem that a conventional gas detector calibrating device cannot calibrate different alarms.
In order to solve the technical problems, the invention adopts the following technical scheme:
The utility model provides a detection device that gas detector calibration was used, includes the casing the bottom of casing is provided with buffer, runs through the intercommunication in one side of casing and has the intake pipe, and the opposite side runs through the intercommunication and has output tube and bypass pipe, the intake pipe is located the inside one end of casing and passes through three-way pipe and output tube and bypass pipe intercommunication, and the intake pipe has standard concentration gas cylinder through the pipeline intercommunication be provided with output flowmeter on the output tube be provided with relief pressure valve and bypass flowmeter on the bypass pipe, fixedly connected with connector on the exit end of output tube, the embedding is provided with touch-control display on the outer wall of casing, touch-control display is connected with output flowmeter, relief pressure valve and bypass flowmeter electricity respectively.
The further technical scheme is that the output flowmeter and the bypass flowmeter are both float flowmeters.
Still further technical scheme is, the connector includes annular structure's fixed part and rotation portion, the one end and the output tube fixed connection of fixed part, the other end is connected with rotation portion rotation, the one end that the fixed part was kept away from to rotation portion is provided with the rubber circle, the rubber circle passes through the sealed cowling and is connected with rotation portion the inside of sealed cowling is provided with a plurality of connecting rods, the middle part and the rotation portion rotation of connecting rod are connected, the one end and the rubber circle fixed connection of connecting rod, the other end is provided with control connecting rod pivoted drive mechanism.
Still further technical scheme is, drive mechanism includes movable rod, the one end of movable rod passes through the cooperation pole and is connected with the connecting rod transmission, the both ends of cooperation pole are articulated with movable rod and connecting rod respectively, are provided with the external screw thread on the movable rod, overlap on the movable rod and are equipped with the gear be provided with the internal screw thread on the inner wall of gear, external screw thread and internal screw thread screw-thread fit are provided with the teeth of a cogwheel on the inner wall of fixed part, the teeth of a cogwheel and gear engagement are connected with the connecting plate in the one side rotation that the gear is close to the rotation part, the top and the inner wall fixed connection of rotation part of connecting plate.
Still further technical scheme is, buffer is including placing the box place the standing groove has been seted up at the top of box place, the bottom and the standing groove clearance fit of casing, the tank bottom fixed connection of bottom surface through a plurality of spring and standing groove of casing, is furnished with a plurality of dead levers that prevent the excessive tensile of spring on the lateral wall of casing.
The movable groove is arranged on the side wall of the shell, the axis of the movable groove is perpendicular to the horizontal plane, two ends of the movable groove are closed ends, the opening size of the movable groove is smaller than the bottom size of the groove, a connecting block is arranged in the movable groove, the cross section shape size of the connecting block is consistent with that of the movable groove, the top of the fixing rod is fixedly connected with the connecting block, and the bottom of the fixing rod is in sliding connection with the bottom of the placing groove.
Still further technical scheme be the inside movable chamber that is provided with of bottom plate of placing the box the top of movable chamber is provided with the fixed orifices of intercommunication standing groove tank bottom, is provided with the fly leaf in the inside of movable chamber, the top surface and the bottom surface of fly leaf respectively with the chamber top and the chamber bottom contact of movable chamber, the diameter of fly leaf is greater than the aperture of fixed orifices and is less than the diameter of movable chamber, the bottom of dead lever pass behind the fixed orifices with the top surface fixed connection of fly leaf, the diameter of dead lever is less than the aperture of fixed orifices.
The shielding cloth is connected to the side wall of the shell in a surrounding mode, and one side, away from the shell, of the shielding cloth is connected with the upper edge of the placement box in a surrounding mode.
Still further technical scheme be provided with supporting mechanism in shielding cloth, supporting mechanism includes a plurality of supporting solid fixed ring and the bracing piece of group, gu fixed ring's bottom is articulated with placing box top ball, the one end fixedly connected with button head of bracing piece, the other end slope upwards pass solid fixed ring back with the spherical hinge of casing outer wall, shielding cloth's one end is connected with solid fixed ring, and the other end is connected with the articulated end of bracing piece.
Still further technical scheme be fixed mounting has first fixed block and second fixed block on the top surface of casing first fixed block is provided with circular shape first mating hole on being close to the side of second fixed block be provided with circular shape second mating hole on the side that the second fixed block is close to first fixed block, be provided with the handle between first fixed block and second fixed block the bottom of the front and back both sides of handle is first mating block and second mating block fixedly connected with respectively, be connected with the hole bottom of first mating hole through reset spring after the one end of first mating block inserts first mating hole, second mating block cooperates with the second mating hole, is provided with polygonal spacing hole on the side that the second mating block contacted with second mating hole bottom the spacing downthehole stopper that cooperates, stopper and second mating hole's hole bottom fixed connection.
Compared with the prior art, the invention has the beneficial effects that:
The connector arranged in the invention can be connected with alarms of various different gas detectors, the output flowmeter arranged in the shell can accurately measure the gas flow passing through the output pipe and display the gas flow on the touch display, then the detected gas detector can be calibrated according to the data on the touch display, and the buffer device arranged below the shell not only plays a role in buffering and protecting the shell, but also can prevent the spring from deforming due to excessive stretching when the shell is applied with force for carrying and transferring.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a connector according to the present invention;
FIG. 3 is a perspective view of the housing of the present invention;
FIG. 4 is a front cross-sectional view of the housing of the present invention;
FIG. 5 is a schematic view of a fixing rod according to the present invention;
FIG. 6 is a schematic view of a supporting mechanism according to the present invention;
Fig. 7 is a schematic view of the structure of the handle in the present invention.
The icon is 1-casing, 2-standard concentration gas cylinder, 3-intake pipe, 4-output pipe, 5-bypass pipe, 6-three-way pipe, 7-output flowmeter, 8-relief valve, 9-bypass flowmeter, 10-connector, 1001-fixed part, 1002-rotating part, 1003-rubber ring, 1004-sealing cover, 1005-connecting rod, 1006-fitting rod, 1007-movable rod, 1008-gear, 1009-gear tooth, 1010-connecting plate, 11-touch display, 12-buffer device, 1201-placing box, 1202-placing groove, 1203-spring, 1204-fixed rod, 1205-connecting block, 1206-movable groove, 1207-movable plate, 1209-movable cavity, 1209-fixed hole, 13-shielding cloth, 14-fixed ring, 15-supporting rod, 16-round head, 17-handle, 18-first fixed block, 19-first fitting block, 20-reset spring, 21-first fitting hole, 22-second fixed block, 23-second fitting block, 24-second fitting hole, 25-stopper, 26-spacing hole, 27-heat dissipation hole.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Fig. 1 to 7 illustrate an embodiment of the present invention.
Example 1
The utility model provides a detection device that gas detector calibration was used, includes casing 1 the bottom of casing 1 is provided with buffer 12, runs through the intercommunication in one side of casing 1 has intake pipe 3, and the opposite side runs through the intercommunication has output tube 4 and bypass pipe 5, the intake pipe 3 is located the inside one end of casing 1 and is passed through three-way pipe 6 and be linked together with output tube 4 and bypass pipe 5, and intake pipe 3 has standard concentration gas cylinder 2 through the pipeline intercommunication be provided with output flowmeter 7 on the output tube 4 be provided with relief pressure valve 8 and bypass flowmeter 9 on the bypass pipe 5, fixedly connected with connector 10 on the exit end of output tube 4, the embedding is provided with touch display 11 on the outer wall of casing 1, touch display 11 is connected with output flowmeter 7, relief pressure valve 8 and bypass flowmeter 9 electricity respectively. After the connector 10 is communicated with an alarm inlet on the detected gas detector, a valve on the standard concentration gas cylinder 2 is opened, so that the standard concentration gas needs to pass through the shell 1 and then is introduced into the gas detector, an output flowmeter 7 arranged in the shell 1 accurately measures the gas flow passing through the output pipe 4 and displays the gas flow on a touch display 11, then the detected gas detector is calibrated according to data on the touch display 11, when the alarm of the detected gas detector is of an inhalation type, the gas in the standard concentration gas cylinder 2 needs to be fully output, but meanwhile, the pressure in the output pipe 4 is too high, and a pressure reducing valve 8 on a bypass pipe 5 needs to be opened to balance the pressure, so that the gas detector can be used for checking and calibrating the diffusion type or the inhalation type.
Specifically, the output flow meter 7 and the bypass flow meter 9 each select a float flow meter. The gas flow through the outlet pipe 4 and the bypass pipe 5 can be accurately counted.
Specifically, a plurality of heat dissipation holes 27 communicating with the interior of the casing 1 are provided on the side wall of the casing 1. The heat inside the shell 1 can be emitted through the heat dissipation holes 27, so that the probability of damage caused by overheat of the electrical components arranged inside the shell 1 is reduced.
Example 2
On the basis of embodiment 1, the connector 10 comprises a fixing portion 1001 and a rotating portion 1002 with annular structures, one end of the fixing portion 1001 is fixedly connected with the output pipe 4, the other end is rotatably connected with the rotating portion 1002, one end of the rotating portion 1002 far away from the fixing portion 1001 is provided with a rubber ring 1003, the rubber ring 1003 is connected with the rotating portion 1002 through a sealing cover 1004, a plurality of connecting rods 1005 are arranged in the sealing cover 1004, the middle of each connecting rod 1005 is rotatably connected with the rotating portion 1002, one end of each connecting rod 1005 is fixedly connected with the rubber ring 1003, and the other end of each connecting rod 1005 is provided with a transmission mechanism for controlling the rotation of each connecting rod 1005. The connecting rod 1005 can be controlled to turn inwards or outwards through the transmission mechanism, so that the size of the aperture of the rubber ring 1003 can be controlled, the connector 10 can be connected with alarms of various different gas detectors, and meanwhile, the sealing cover 1004 can ensure that gas introduced into the gas detectors by the output pipe 4 cannot leak, so that detection data is influenced.
Specifically, the flexible hose can be further connected between the connector 10 and the output pipe 4, so that the connector 10 can be connected with an alarm at a farther and higher position to complete the detection work of the gas detector.
Example 3
On the basis of embodiment 2, the transmission mechanism comprises a movable rod 1007, one end of the movable rod 1007 is in transmission connection with a connecting rod 1005 through a matching rod 1006, two ends of the matching rod 1006 are respectively hinged with the movable rod 1007 and the connecting rod 1005, an external thread is arranged on the movable rod 1007, a gear 1008 is sleeved on the movable rod 1007, an internal thread is arranged on the inner wall of the gear 1008, the external thread is in threaded fit with the internal thread, gear teeth 1009 are arranged on the inner wall of a fixed part 1001, the gear teeth 1009 are meshed with the gear 1008, a connecting plate 1010 is rotatably connected to one side of the gear 1008 close to the rotating part 1002, and the top of the connecting plate 1010 is fixedly connected with the inner wall of the rotating part 1002. When the connecting rod 1005 needs to be controlled to turn over to adjust the aperture of the rubber ring 1003, the rotating part 1002 is forced to rotate, the movable rod 1007 inside the rotating part 1002 can drive the gear 1008 to rotate simultaneously when the rotating part 1002 rotates, and the gear 1008 is meshed with the gear teeth 1009 on the inner wall of the fixed part 1001, so that the gear 1008 rotates around the central axis of the fixed part 1001 and rotates simultaneously, the movable rod 1007 matched with threads can transversely move inside the rotating part 1002 due to the self-rotation of the gear 1008, and the movable rod 1007 transversely moves can force the end part of the connecting rod 1005 to turn over, so that the aperture of the rubber ring 1003 is adjusted.
Example 4
On the basis of embodiment 3, the buffer device 12 includes a placement box 1201, a placement groove 1202 is provided at the top of the placement box 1201, the bottom of the housing 1 is in clearance fit with the placement groove 1202, the bottom of the housing 1 is fixedly connected with the bottom of the placement groove 1202 through a plurality of springs 1203, and a plurality of fixing rods 1204 for preventing the springs 1203 from overstretching are disposed on the side wall of the housing 1. After the housing 1 is impacted accidentally in any direction, the spring 1203 can play a role in buffering, so that the probability of vibration damage of components in the housing 1 can be effectively reduced, and the fixing rod 1204 can prevent the spring 1203 from being excessively stretched for a long time to deform when the housing 1 is lifted to move.
Example 5
On the basis of embodiment 4, a movable slot 1206 is arranged on the side wall of the shell 1, the axis of the movable slot 1206 is perpendicular to the horizontal plane, two ends of the movable slot 1206 are closed ends, the opening size of the movable slot 1206 is smaller than the slot bottom size, a connecting block 1205 is arranged in the movable slot 1206, the cross section shape size of the connecting block 1205 is consistent with the cross section shape size of the movable slot 1206, the top of the fixing rod 1204 is fixedly connected with the connecting block 1205, and the bottom of the fixing rod 1204 is in sliding connection with the slot bottom of the placing slot 1202. When the housing 1 is lifted and the present invention is transferred, the fixing lever 1204 can prevent the housing 1 from being excessively spaced from the placing box 1201 and the spring 1203 from being excessively stretched and deformed.
Example 6
On the basis of embodiment 5, a movable cavity 1208 is arranged in the bottom plate of the placement box 1201, a fixing hole 1209 communicated with the bottom of the placement groove 1202 is formed in the top of the movable cavity 1208, a movable plate 1207 is arranged in the movable cavity 1208, the top surface and the bottom surface of the movable plate 1207 are respectively contacted with the top surface and the bottom surface of the movable cavity 1208, the diameter of the movable plate 1207 is larger than the aperture of the fixing hole 1209 and smaller than the diameter of the movable cavity 1208, and the bottom of the fixing rod 1204 is fixedly connected with the top surface of the movable plate 1207 after passing through the fixing hole 1209, and the diameter of the fixing rod 1204 is smaller than the aperture of the fixing hole 1209. The movable cavity 1208 and the movable plate 1207 are arranged to enable the fixed lever 1204 to move in any direction within a certain range of the horizontal plane, so that the adapting housing 1 can move and finally return to the original position under the action of the spring 1203 after being accidentally impacted in any direction.
Example 7
On the basis of embodiment 6, a shielding cloth 13 is connected around the side wall of the shell 1, and one side of the shielding cloth 13 away from the shell 1 is connected around the upper edge of the placement box 1201. The shielding cloth 13 can prevent external foreign matters and impurities from entering the placing box and even the movable cavity, so that the shell 1 cannot be moved and damped to be damaged, the shielding cloth 13 can fold redundant cloth in a normal state, corresponding unfolding can be performed when the shell 1 moves, and the shielding cloth 13 is ensured not to be torn and broken.
Example 8
On the basis of embodiment 7, a supporting mechanism is arranged in the shielding cloth 13, the supporting mechanism comprises a plurality of groups of matched fixed rings 14 and supporting rods 15, the bottoms of the fixed rings 14 are hinged with the top ball of the placement box 1201, one end of each supporting rod 15 is fixedly connected with a round head 16, the other end of each supporting rod obliquely upwards penetrates through the fixed ring 14 and then is hinged with the outer wall ball of the shell 1, one end of the shielding cloth 13 is connected with the fixed ring 14, and the other end of each shielding cloth is connected with the hinged end of each supporting rod 15. The shielding cloth 13 is obliquely arranged through the supporting mechanism, so that foreign matters and impurities falling on the shielding cloth 13 slide to the ground, the foreign matters and the impurities are prevented from being retained for a long time and gradually erode and damage the shielding cloth 13, external dust and rainwater can be prevented from entering the shielding cloth 13 along the supporting rod 15 from a gap on the fixed ring 14, the round head 16 arranged at the end part of the supporting rod 15 not only plays a role in preventing the supporting rod 15 from being separated from the fixed ring 14, but also can prevent the end part of the supporting rod 15 from being too sharp.
Example 9
On the basis of embodiment 8, a first fixing block 18 and a second fixing block 22 are fixedly installed on the top surface of the shell 1, a circular first matching hole 21 is formed in the side surface, close to the second fixing block 22, of the first fixing block 18, a circular second matching hole 24 is formed in the side surface, close to the first fixing block 18, of the second fixing block 22, a lifting handle 17 is arranged between the first fixing block 18 and the second fixing block 22, a first matching block 19 and a second matching block 23 are fixedly connected to the bottoms of the front side and the rear side of the lifting handle 17 respectively, one end of the first matching block 19 is connected with the hole bottom of the first matching hole 21 through a reset spring 20 after being inserted into the first matching hole 21, the second matching block 23 is matched with the second matching hole 24, a polygonal limiting hole 26 is formed in the side surface, close to the hole bottom of the second matching block 23, of the second matching hole 24, a limiting block 25 is matched with the hole bottom of the second matching hole 24, and the limiting block 25 is fixedly connected with the hole bottom of the second matching hole 24. After setting up handle 17 at the top of casing 1, make things convenient for staff's application of force to carry casing 1, when handle 17 uses, stopper 25 is in the cooperation state with spacing hole 26, make handle 17 unable rotate, produce rocking when can avoiding carrying casing 1 like this, it is safer laborsaving, when casing 1 needs to use, can rotate handle 17 wantonly left and right sides and laminate with the top surface of casing 1, thereby can reduce the occupation space of casing 1, handle 17 is difficult for receiving unexpected striking and takes place the rupture moreover, when needs reuse handle 17, only need the application of force rotate handle 17 until stopper 25 takes place the cooperation again with spacing hole 26 under reset spring 20's effect, make handle 17 can not rotate yet, whole operation process is very light laborsaving.
When the gas detector is used, firstly, a standard concentration gas cylinder 2 is communicated with a gas inlet pipe 3 on a shell 1, then a connector 10 is connected with an alarm of a gas detector to be detected, the size of the connector 10 can be adjusted according to actual conditions, so that the gas detector can be applied to alarms of various different specifications, a valve on the standard concentration gas cylinder 2 is opened to enable standard concentration gas to pass through the shell 1 and then be introduced into the gas detector, an output flowmeter 7 arranged in the shell 1 accurately measures the flow of the gas passing through an output pipe 4 and displays the flow on a touch display 11, then the detected gas detector is calibrated according to data on the touch display 11, and when the pressure of the gas introduced into the output pipe 4 is overlarge, a pressure reducing valve 8 on a bypass pipe 5 can be opened to balance the pressure, so that the gas detector can be used for checking and calibrating the diffusion type or suction type gas detector;
when the lifting handle 17 is needed to be used, only the lifting handle 17 is required to be overturned and righted, then the reset spring 20 can apply thrust to the lifting handle 17 so that the lifting handle 17 can finally move, the limiting hole 26 on the second matching block 23 is matched with the limiting block 25 again, the lifting handle 17 can not rotate when in use, shaking can be avoided when the lifting handle 17 is held to carry the shell 1, the lifting handle 17 is safer and more labor-saving, when the lifting handle 17 is not needed to be used, the lifting handle 17 is controlled to move towards the position close to the first fixed block 18 by applying force until the lifting handle 17 is contacted with the first fixed block 18, the reset spring 20 is compressed, the limiting hole 26 on the second matching block 23 is separated from the limiting block 25, then the lifting handle 17 is overturned by applying force to be contacted with the top surface of the shell 1, thus the occupied space at the top of the shell 1 can be reduced, and meanwhile the lifting handle 17 is not easy to break due to accidental impact;
When the shell 1 is placed on the ground to work, the shell 1 can be buffered and damped under the action of the spring 1203 after being impacted in any direction, so that the probability of vibration damage of components in the shell 1 is reduced, meanwhile, the fixing rod 1204 can move synchronously with the shell 1, when the shell 1 needs to be lifted for carrying and transferring, the fixing rod 1204 can prevent the excessive space between the shell 1 and the placing box 1201 from causing excessive stretching deformation of the spring 1203, and the shielding cloth 13 arranged at the top of the placing box 1201 can prevent external foreign matters and impurities from entering the placing box 1201 and even the movable cavity 1208, so that vibration damage caused by incapability of moving the shell 1 is avoided.
Although the application has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure. More specifically, various modifications and improvements may be made to the constituent components and/or arrangements of the subject combination arrangement within the scope of the drawings and claims of the present disclosure. In addition to variations and modifications in the component parts and/or arrangements, other uses will be apparent to those skilled in the art.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411699858.1A CN119178855B (en) | 2024-11-26 | 2024-11-26 | Detection device for calibrating gas detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411699858.1A CN119178855B (en) | 2024-11-26 | 2024-11-26 | Detection device for calibrating gas detector |
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| CN119178855A true CN119178855A (en) | 2024-12-24 |
| CN119178855B CN119178855B (en) | 2025-03-04 |
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| CN202411699858.1A Active CN119178855B (en) | 2024-11-26 | 2024-11-26 | Detection device for calibrating gas detector |
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