CN115165479A - Automobile exhaust tests extraction element convenient to collect tail gas - Google Patents
Automobile exhaust tests extraction element convenient to collect tail gas Download PDFInfo
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- CN115165479A CN115165479A CN202210748074.8A CN202210748074A CN115165479A CN 115165479 A CN115165479 A CN 115165479A CN 202210748074 A CN202210748074 A CN 202210748074A CN 115165479 A CN115165479 A CN 115165479A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2252—Sampling from a flowing stream of gas in a vehicle exhaust
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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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention discloses an automobile exhaust testing and extracting device convenient for collecting exhaust, which relates to the technical field of automobile exhaust testing and comprises an air guide pipe and a plurality of air storage pipes, wherein the air guide pipe is inserted into the automobile exhaust pipe, the opening structure of the air guide pipe faces the automobile exhaust pipe, each air storage pipe is connected with the radial side wall of the air guide pipe through an air inlet pipe, two supporting cross rods are respectively and fixedly arranged at the two axial ends inside the air storage pipes, two guide rods are respectively and slidably inserted into the two supporting cross rods, two sealing blocks are respectively and fixedly arranged at the ends, far away from each other, of the two guide rods, an ejector rod is fixedly arranged on the side wall of the sealing block close to the air inlet pipe, and a plurality of shifting blocks are fixedly sleeved on the outer wall of a pulling rod. The automobile exhaust pipe can enter each air storage pipe after being guided into the air guide pipe, and air in the air storage pipes can be guided out of the air outlet pipes, so that the content of the air in the air storage pipes is greatly reduced, and the automobile exhaust pipe detection device is favorable for detecting automobile exhaust.
Description
Technical Field
The invention relates to the technical field of automobile exhaust emission tests, in particular to an automobile exhaust emission test extraction device convenient for collecting exhaust.
Background
Along with the improvement of living standard of people, automobiles increasingly appear in life, but bring convenience to people, simultaneously, a large amount of tail gas that it discharges, a large amount of harmful gas in the tail gas cause serious pollution to the environment, bring very big harm to people's life and health at the same time, when the car is driven, whether its tail gas that discharges is normal, whether the running state of the car driving system is good key index, therefore through collecting and detecting car tail gas, can know whether the tail gas is up to standard, current car tail gas discharges and adopts the mode of directly arranging to the air, easy quick diffusion, the extraction equipment that the test adopted can't collect a large amount of tail gas that discharges, the influence leads to detecting numerical value error great, the staff can't judge accurately whether the tail gas discharge is up to standard, so designed a car tail gas exhaust test extraction element convenient to collect tail gas here, in order to solve the above-mentioned problem.
Disclosure of Invention
The invention aims to provide an automobile exhaust testing and extracting device convenient for collecting exhaust, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automobile exhaust exhausts test extraction element convenient to collect tail gas, includes air duct and a plurality of gas receiver, and the one end of air duct is open structure, and the other end is enclosed construction, and the air duct inserts in the inside and open structure of air duct of automobile exhaust pipe is towards the automobile exhaust intraductal, makes like this that to enter into inside the air duct from automobile exhaust pipe exhaust's tail gas.
The axial both ends of gas receiver are connected with intake pipe and outlet duct respectively, every gas receiver all is connected through the radial lateral wall of intake pipe with the air duct, the inside of gas receiver is equipped with the sealing mechanism that can seal intake pipe and outlet duct, utilize sealing mechanism to open intake pipe and outlet duct, automobile exhaust gets into and can enter into the gas receiver smoothly through the air duct, and simultaneously, the air in the gas receiver can be compiled the automobile exhaust and derive the gas receiver, after the interval certain time, after automobile exhaust is derived simultaneously along with to the air in the gas receiver promptly, utilize sealing mechanism to seal intake pipe and outlet duct simultaneously, make the inside a large amount of automobile exhaust of storage of gas receiver, the stock is stayed to the air in the greatly reduced gas receiver, help the detection equipment to carry out the detection operation to the automobile exhaust who draws in the gas receiver.
Sealing mechanism includes two sealed pieces, two guide bars and two support horizontal poles, two support horizontal poles are fixed respectively and are set up the inside axial both ends at the gas receiver, two guide bars slide with two support horizontal poles respectively and peg graft, and two sealed pieces are fixed respectively and are set up the one end of keeping away from each other at two guide bars, the outer wall of guide bar has cup jointed the first spring that is located sealed piece and supports between the horizontal pole, utilize two first springs can drive the guide bar that corresponds separately along supporting the horizontal pole to the one side slip jack-up of keeping away from each other with two sealed pieces, make two sealed pieces can block up the intake pipe of gas receiver respectively and give vent to anger.
The inner wall symmetry of gas storage pipe is equipped with two articulated levers, the tip of two articulated levers all articulates there is articulated sleeve, articulated sleeve's tip has T type pole through T type groove slip grafting, the guide bar end fixing that is close to the intake pipe is equipped with the round platform type kicking block that is located between two articulated sleeves, the guide bar end fixing that is close to the outlet duct is equipped with the diaphragm, inverted T type spout has been seted up to the diaphragm upper end, and inside slip joint of inverted T type spout has two inverted T type sliders, the tip of two T type poles is articulated with two inverted T type slider lateral walls respectively, can jack-up round platform type kicking block to one side that is close to the outlet duct through the guide bar, can drive the T type pole that corresponds separately with two articulated sleeves around the upset of articulated position, when T type pole articulated sleeve overturns, slide along T type inslot portion, still drive T type slider to slide to one side that is close to each other along the inverted T type spout inside of diaphragm, the diaphragm can drive the guide bar that is close to one side adjustment position that is close to the outlet duct to the inlet duct this moment, can drive the sealed piece that is close to the outlet duct and break away from the outlet duct like this way, make the pipe pass through outlet duct and outside air intercommunication, realize opening the sealed piece of tail gas storage pipe and the sealed department of automobile collection department of being convenient for automobile, the sealed piece of automobile.
The enclosed construction lateral wall of air duct has the pull pole through the slip grafting of pull hole, the fixed ejector pin that is equipped with of sealed piece lateral wall near the intake pipe, the fixed cover of outer wall of pull pole has connect a plurality of to dial the piece, the top of ejector pin is run through the intake pipe and is extended to the inside top that just the ejector pin of air duct is equipped with the jack-up inclined plane, along pull hole axial direction to being close to the inside jack-up pull pole that stretches out of vehicle vent-pipe, can drive and dial the synchronous jack-up of piece, the inclined plane of dialling the piece is along the jack-up inclined plane level jack-up of ejector pin, can push down the ejector pin along vertical direction, thereby push down the sealed piece that is located intake pipe department, finally realize opening another sealed piece in step, be convenient for switch on automobile exhaust delivery path.
In a further embodiment, two first stainless steel elastic connecting sheets are symmetrically arranged on the outer wall of one end, close to the opening structure, of the air duct, and the stainless steel buckles of the R-shaped structure are fixedly arranged at the ends, far away from each other, of the two first stainless steel elastic connecting sheets.
In a further embodiment, two second stainless steel elastic connecting sheets extending to the inner depth of the automobile exhaust pipe are symmetrically arranged on the outer wall of one end, close to the opening structure, of the air duct, and the two second stainless steel elastic connecting sheets and the two first stainless steel elastic connecting sheets are distributed in a cross-shaped structure.
In a further embodiment, the end parts of the two second stainless steel elastic connecting sheets are respectively and rotatably provided with a roller which can be rotatably attached to the inner wall of the automobile exhaust pipe.
In further embodiment, the outer wall of pull pole is fixed to be cup jointed the stopper, and the outer wall of pull pole has cup jointed the second spring, the one end and the stopper lateral wall fixed connection of second spring, and the pulling force of second spring is utilized to the inside enclosed construction lateral wall fixed connection of the other end and air duct, and under natural state, the pull pole can not drive the stopper and stretch out the jack-up to vehicle vent-pipe inside along pull hole axial direction.
In a further embodiment, a connecting block is fixedly arranged on the radial side wall of the end part of the pull rod, a guide groove which is distributed in a spiral structure is formed in one end, close to the opening, of the inner wall of the air duct, the end part of the connecting block is in sliding clamping connection with the inside of the guide groove, and the connecting block advances along the distribution path of the guide groove in the spiral structure, so that the pull rod can rotate when being fed along the axial direction of the pull hole.
The other end of the pull rod is rotatably provided with a steel ring.
In further embodiment, the outer wall of air duct is equipped with buffer gear near the one end of enclosed construction, buffer gear includes the mounting box, the inside of mounting box is equipped with the installation cavity, the intercommunicating pore with the inside intercommunication of installation cavity is seted up to the air duct lateral wall, the inside top end face mounting of installation cavity is equipped with the liquid storage cylinder, the inside slip of liquid storage cylinder is pegged graft and is had T type push rod, the inside filling of liquid storage cylinder has the hydraulic oil that is located T type push rod top space, the bottom slip of T type push rod runs through liquid storage cylinder bottom face and intercommunicating pore, and extend to the air duct insidely, utilize buffer gear can prolong the time that the pull pole reverse reset, make the time interval of extracting automobile exhaust in two adjacent air ducts obtain the extension.
Two truncated cone type inclined planes are symmetrically arranged at two ends of the outer wall of the limiting block, and the truncated cone type poking inclined planes are arranged at the bottom end of the T-shaped push rod.
In further embodiment, the inside of mounting box is equipped with the buffering cavity that is located installation cavity one side, the inside of buffering cavity is equipped with the rubber gasbag, rubber gasbag open connection has the catheter, the tip of catheter extends to the installation cavity inside and is connected with liquid storage cylinder lateral wall top, when T type push rod promoted hydraulic oil along the inside lapse of liquid storage cylinder, the inside pressure increase of liquid storage cylinder, be convenient for with the leading-in rubber gasbag of atmospheric pressure that risees in through the catheter, the volume grow of rubber gasbag.
In a further embodiment, the upper end of the mounting box is provided with an air hole communicated with the interior of the buffer cavity, and the air hole is connected with external air to compensate air pressure difference in the buffer cavity when the volume of the rubber air bag is increased.
Preferably, the extraction method of the automobile exhaust testing extraction device convenient for collecting exhaust comprises the following steps:
a1, inserting an air duct into an automobile exhaust pipe, wherein an opening structure of the air duct faces the automobile exhaust pipe, so that exhaust exhausted from an automobile exhaust pipe enters the air duct;
a2, utilize sealing mechanism to open intake pipe and outlet duct, automobile exhaust gets into and can enter into the gas receiver smoothly through the air duct, and simultaneously, the air in the gas receiver can be compiled automobile exhaust and derive the gas receiver, after the interval dead time, after automobile exhaust derives simultaneously is followed to the air in the gas receiver promptly, utilize sealing mechanism to seal intake pipe and outlet duct simultaneously, make a large amount of automobile exhaust of the inside storage of gas receiver, the stock is stayed to the air in the greatly reduced gas receiver, help detecting equipment to carry out detect operation to the automobile exhaust who draws in the gas receiver.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to an automobile exhaust test and extraction device convenient for collecting exhaust, wherein an air guide pipe is inserted into an automobile exhaust pipe, the opening structure of the air guide pipe faces the automobile exhaust pipe, meanwhile, in the collection process, two sealing blocks sealed at an air inlet pipe and an air outlet pipe of the air storage pipe are adjusted to one side which is mutually closed, the air storage pipe is communicated with the air guide pipe through the air inlet pipe, the air storage pipe is communicated with the outside air through the air outlet pipe, the air storage pipe can enter each air storage pipe after being guided into the air guide pipe from an automobile exhaust pipe, the air in the air storage pipe can be guided out from the air outlet pipe, the content of the air in the air storage pipe is greatly reduced, after a certain time interval, the two sealing blocks are adjusted to one side which is mutually far away, the air inlet pipe and the air outlet pipe are sealed again, a large amount of automobile exhaust is extracted from the air storage pipe at the moment, the detection operation of the automobile exhaust extracted from the air storage pipe by a detection device is facilitated, meanwhile, the phenomenon that the automobile exhaust is directly diffused into the air and the air is prevented from being rapidly, the ultimate detection numerical error is larger, and the misjudgment whether the automobile exhaust reaches the standard or not easily caused by workers.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the airway tube of the present invention;
FIG. 3 is a partial cross-sectional view of the buffer mechanism and airway structure of the present invention;
FIG. 4 is a partial cross-sectional view of the gas reservoir and gas conduit of the present invention;
FIG. 5 is a partial cross-sectional view of the gas receiver of the present invention;
FIG. 6 is an exploded view of the airway and pull rod arrangement of the present invention;
FIG. 7 is a partial cross-sectional view of an airway tube of the present invention.
In the figure: 1. an air duct; 11. a first stainless steel elastic connecting sheet; 12. a stainless steel buckle; 13. a pull rod; 14. a steel ring; 15. a second stainless steel elastic connecting sheet; 16. a roller; 17. a limiting block; 18. a second spring; 19. a shifting block; 110. a guide groove; 111. connecting blocks; 2. a gas storage pipe; 21. an air inlet pipe; 22. an air outlet pipe; 3. a buffer mechanism; 31. mounting a box; 32. air holes are formed; 33. installing a cavity; 34. a liquid storage cylinder; 35. a T-shaped push rod; 36. a buffer cavity; 37. a rubber air bag; 38. a catheter; 4. a sealing mechanism; 41. a support rail; 42. a guide bar; 43. a sealing block; 44. a first spring; 45. a top rod; 46. a truncated cone shaped top block; 47. a hinged lever; 48. a hinged sleeve; 49. a T-shaped rod; 410. a transverse plate; 411. an inverted T-shaped slider.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Please refer to fig. 1, fig. 4 and fig. 5, the embodiment provides an automobile exhaust testing and extracting device convenient for collecting exhaust, which includes an air duct 1 and a plurality of air storage pipes 2, one end of the air duct 1 is an open structure, and the other end is a closed structure, the air duct 1 is inserted into the automobile exhaust pipe, and the open structure of the air duct 1 faces the automobile exhaust pipe, so that the exhaust discharged from the automobile exhaust pipe enters the air duct 1.
The axial both ends of gas receiver 2 are connected with intake pipe 21 and outlet duct 22 respectively, and every gas receiver 2 all is connected with the radial lateral wall of air duct 1 through intake pipe 21 for gas receiver 2 can fix the lateral wall that sets up at air duct 1, and it is inside simultaneously to enter into 1 inside automobile exhaust of air duct can pass through intake pipe 21 leading-in to gas receiver 2, and gas receiver 2 draws the temporary storage place as automobile exhaust and uses.
The inside of gas receiver 2 is equipped with sealing mechanism 4 that can seal intake pipe 21 and outlet duct 22, utilize sealing mechanism 4 to open intake pipe 21 and outlet duct 22, automobile exhaust gets into and can enter into gas receiver 2 through air duct 1 smoothly, and simultaneously, the air in the gas receiver 2 can be converged automobile exhaust and derive gas receiver 2, after the interval certain time, after air following automobile exhaust in the gas receiver 2 derives simultaneously promptly, utilize sealing mechanism 4 to seal intake pipe 21 and outlet duct 22 simultaneously, make 2 inside a large amount of automobile exhaust of storage, greatly reduced gas receiver 2 is interior air reserves the stock, help the automobile exhaust who draws to gas receiver 2 in the check out test operation, avoid automobile exhaust to discharge fast diffusion in directly arranging to the air simultaneously, it is great to lead to final detection numerical value error, easily lead to whether staff airs exhaust to reach standard and cause the erroneous judgement to the automobile exhaust.
Sealing mechanism 4 includes two sealing blocks 43, two guide bars 42 and two support horizontal poles 41, two support horizontal poles 41 are fixed the setting at the inside axial both ends of gas storage pipe 2 respectively, two guide bars 42 are pegged graft with two support horizontal poles 41 slip respectively, and two sealing blocks 43 are fixed the setting respectively in the one end that two guide bars 42 kept away from each other, in the collection process, two sealing blocks 43 that will seal at gas storage pipe 2 intake pipe 21 and outlet duct 22 are to the one side adjustment that closes together each other, make gas storage pipe 2 communicate in intake pipe 21 and the air duct 1, simultaneously gas storage pipe 2 passes through outlet duct 22 and outside air intercommunication, can get into in every gas storage pipe 2 after leading-in to air duct 1 from the automobile exhaust pipe, can lead out the air in the gas storage pipe 2 from outlet duct 22, greatly reduced the content of air in the gas storage pipe 2, after the interval certain time, adjust two sealing blocks 43 to the one side that keeps away from each other, make two sealing blocks 43 block up intake pipe 21 and outlet duct 22 once more, draw a large amount of automobile exhaust in the gas storage pipe 2 this moment.
The outer wall of guide bar 42 has cup jointed the first spring 44 that is located between sealed piece 43 and the support horizontal pole 41, utilize two first springs 44 to drive guide bar 42 that corresponds separately along supporting horizontal pole 41 to the one side slip jack-up of keeping away from each other with two sealed pieces 43, make two sealed pieces 43 can block up intake pipe 21 and outlet duct 22 of gas storage pipe 2 respectively, after automobile exhaust enters into gas storage pipe 2, can block up intake pipe 21 and outlet duct 22, avoid automobile exhaust to derive from intake pipe 21 and outlet duct 22, it is less to lead to automobile exhaust collection volume, bring great error for final testing result.
The inner wall of the gas storage pipe 2 is symmetrically provided with two hinged rods 47, the end parts of the two hinged rods 47 are hinged with hinged sleeves 48, the end parts of the hinged sleeves 48 are inserted with T-shaped rods 49 through T-shaped groove sliding, the T-shaped rods 49 can be pulled and pulled along the inside of the T-shaped groove in a sliding manner, the relative lengths of the hinged sleeves 48 and the T-shaped rods 49 are adjusted, and in addition, the hinged sleeves 48 can drive the T-shaped rods 49 to swing around the hinged joints, so that the size of an included angle between the T-shaped rods 49 on two sides is changed.
The end portion of the guide rod 42 close to the air inlet pipe 21 is fixedly provided with a circular truncated cone-shaped top block 46 positioned between two hinged sleeves 48, the end portion of the guide rod 42 close to the air outlet pipe 22 is fixedly provided with a transverse plate 410, an inverted T-shaped sliding groove is formed in the upper end of the transverse plate 410, two inverted T-shaped sliding blocks 411 are connected in a sliding and clamping mode inside the inverted T-shaped sliding groove, the end portions of the two T-shaped rods 49 are hinged to the side walls of the two inverted T-shaped sliding blocks 411 respectively, when the sealing block 43 close to the air inlet pipe 21 is pressed downwards, the sealing block 43 is separated from the air inlet pipe 21, and the air guide pipe 1 is communicated with the inside of the air storage pipe 2.
Can be with round platform type kicking block 46 to the one side jack-up that is close to outlet duct 22 through guide bar 42, can drive the upset of the T type pole 49 that corresponds separately around articulated position with two articulated sleeves 48, when T type pole 49 is followed the upset of articulated sleeve 48, slide along T type inslot portion, still drive inverted T type slider 411 to slide to the one side that is close to each other along the inverted T type spout of diaphragm 410 is inside, diaphragm 410 can drive the guide bar 42 that is close to outlet duct 22 to the one side adjustment position that is close to intake pipe 21 this moment, can drive the sealed piece 43 that is close to outlet duct 22 like this and break away from outlet duct 22, make gas storage pipe 2 pass through outlet duct 22 and outside air intercommunication, realize opening the sealed piece 43 of intake pipe 21 and outlet duct 22 department in step, be convenient for collect automobile exhaust.
In addition, the first springs 44 on the outer walls of the two guide rods 42 are compressed to generate rebound potential energy, and after a certain time interval, the downward-pressed sealing blocks 43 are released, so that the two sealing blocks 43 can be respectively jacked up by utilizing the rebound potential energy of the two first springs 44, and the air inlet pipe 21 and the air outlet pipe 22 are simultaneously sealed.
In order to facilitate simultaneous opening of the two sealing blocks 43, a drawing rod 13 is inserted into the side wall of the closed structure of the air duct 1 through a drawing hole in a sliding mode, a push rod 45 is fixedly arranged on the side wall of the sealing block 43 close to the air inlet pipe 21, a plurality of drawing blocks 19 are fixedly sleeved on the outer wall of the drawing rod 13, the top end of the push rod 45 penetrates through the air inlet pipe 21 and extends into the air duct 1, a jacking inclined surface is arranged at the top end of the push rod 45, the drawing rod 13 extends out towards the position close to the interior of the automobile exhaust pipe along the axial direction of the drawing hole, the drawing blocks 19 can be driven to jack up synchronously, the inclined surface of the drawing blocks 19 horizontally jacks up along the jacking inclined surface of the push rod 45, the push rod 45 can be pressed down along the vertical direction, so that the sealing block 43 located at the air inlet pipe 21 is pressed down, synchronous opening of the other sealing block 43 is finally achieved, and the automobile exhaust transmission path is convenient to conduct.
When the automobile exhaust is lifted inside the gas storage pipe 2 to be detected, a gas interface of the detection device is directly inserted into the gas outlet pipe 22, the corresponding sealing block 43 can be jacked up, the corresponding guide rod 42 slides along the support cross rod 41 to drive the transverse plate 410 to be jacked up upwards synchronously, two inverted T-shaped sliders 411 slide towards one side close to each other along the inverted T-shaped chute of the transverse plate 410, meanwhile, the T-shaped rod 49 slides along the T-shaped groove inside corresponding to the hinged sleeve 48 and overturns around the hinged position of the hinged sleeve 48, so that the included angle between the two hinged sleeves 48 is increased, and the truncated cone-shaped top block 46 is kept away from, so that the sealing block 43 close to the gas outlet pipe 22 can be driven to be separated from the gas outlet pipe 22, the position of the sealing block 43 at the position of the gas inlet pipe 21 is not changed, the collected automobile exhaust is ensured not to be leaked, and the detection requirement of the detection device is met.
Example two
Please refer to fig. 1, fig. 3, fig. 6 and fig. 7, which are further improved based on the embodiment 1:
The fixed connecting block 111 that is equipped with of the radial lateral wall of tip of pull pole 13, the guide way 110 that is the distribution of screw-tupe structure is offered near opening one end to 1 inner wall of air duct, connecting block 111 tip and the inside slip joint of guide way 110, when stretching out jack-up with pull pole 13 to the automobile exhaust pipe inside along pull hole axial direction, connecting block 111 advances along screw-tupe structure's guide way 110 distribution route, when making pull pole 13 give along pull hole axial direction, can take place to rotate the operation.
The outer wall that is 19 along pull pole 13 with a plurality of pull pole 13 outer wall is the distribution of screw-tupe structure, and when 13 axial feedings of pull pole and rotation go on in step, can utilize a plurality of to dial piece 19 jack-up every ejector pin 45 that corresponds in proper order for the time appearing wrong time in the automobile exhaust of drawing of every gas receiver 2, the time quantum that every gas receiver 2 drawed automobile exhaust is different, helps improving the accuracy of testing result.
The drawing rod 13 fed axially is loosened, the drawing rod 13 can be reset reversely under the pulling force of the second spring 18, so that each shifting block 19 can be separated from the corresponding ejector rod 45, and the sealing blocks 43 are reset to respectively seal the air inlet pipe 21 and the air outlet pipe 22.
The steel ring 14 is rotatably arranged at the other end of the pull rod 13, and the pull rod 13 is pushed and pulled by the steel ring 14 without being influenced by the rotation of the pull rod 13.
One end of the outer wall of the air guide pipe 1 close to the closed structure is provided with a buffer mechanism 3, and the buffer mechanism 3 can prolong the reverse reset time of the pull rod 13, so that the time interval for extracting automobile exhaust from two adjacent air storage pipes 2 is prolonged.
Buffer gear 3 includes mounting box 31, the inside of mounting box 31 is equipped with installation cavity 33, the intercommunicating pore with the inside intercommunication of installation cavity 33 is seted up to 1 lateral wall of air duct, the fixed liquid storage cylinder 34 that is equipped with of the inside top face of installation cavity 33, the inside slip grafting of liquid storage cylinder 34 has T type push rod 35, the inside hydraulic oil that is located T type push rod 35 top space of filling of liquid storage cylinder 34, the bottom of T type push rod 35 slides and runs through liquid storage cylinder 34 bottom face and intercommunicating pore, and extend to 1 inside of air duct, stopper 17's outer wall both ends symmetry is equipped with two circular platform type inclined planes, the bottom of T type push rod 35 is equipped with circular platform type toggle inclined plane, when pull pole 13 stretches out the top to vehicle vent-pipe inside, can utilize one end circular platform type inclined plane of stopper 17 to stir the inclined plane and slide along the circular platform type of T type push rod 35, along the inside upwards sliding of liquid storage cylinder 34 along the circular platform type toggle inclined plane of stopper 17, and jack up hydraulic oil, produce the damping hydraulic oil effect, after the circular platform type inclined plane of the other end of stopper 17 stirs the inclined plane and T type push rod 35, because the weight of sliding slowly slides down has the weight of liquid storage cylinder 34, the inside sliding of sliding.
When the pull rod 13 is pulled by the second spring 18 again, the circular truncated cone at the other end of the limiting block 17 pulls the circular truncated cone of the inclined plane and the circular truncated cone of the T-shaped push rod 35 to pull the inclined plane to slide, and because hydraulic oil has certain viscosity, the T-shaped push rod 35 slowly slides upwards along the inside of the liquid storage cylinder 34, so that the pull rod 13 is reset and time-consuming to prolong, and the time interval of extracting automobile exhaust from two adjacent gas storage pipes 2 is prolonged.
In order to compensate the air pressure difference in the liquid storage cylinder 34 when the T-shaped push rod 35 slides up and down, a buffer cavity 36 located on one side of the installation cavity 33 is arranged in the installation box 31, a rubber air bag 37 is arranged in the buffer cavity 36, a liquid guide pipe 38 is connected to the opening of the rubber air bag 37, the end of the liquid guide pipe 38 extends into the installation cavity 33 and is connected with the top end of the side wall of the liquid storage cylinder 34, when the T-shaped push rod 35 pushes hydraulic oil to slide upwards along the interior of the liquid storage cylinder 34, the pressure in the liquid storage cylinder 34 is increased, the increased air pressure is conveniently guided into the rubber air bag 37 through the liquid guide pipe 38, and the volume of the rubber air bag 37 is increased.
The upper end of the mounting box 31 is provided with the air hole 32 communicated with the interior of the buffer cavity 36, and the air hole 32 is connected with external air to compensate the air pressure difference in the buffer cavity 36 when the volume of the rubber air bag 37 is increased.
EXAMPLE III
Referring to fig. 1 and fig. 2, a further improvement is made on the basis of embodiment 2:
be close to the one end outer wall symmetry of open structure at air duct 1 and be equipped with two second stainless steel elastic connection pieces 15 that extend to the inside depths of automobile exhaust pipe, and two second stainless steel elastic connection pieces 15 are cross structural distribution with two first stainless steel elastic connection pieces 11, when stainless steel buckle 12 joint is at the automobile exhaust pipe outer wall, close two second stainless steel elastic connection pieces 15 to one side that is close to each other, produce the bounce-back potential energy, and fill in the automobile exhaust pipe, loosen the second stainless steel elastic connection piece 15 that closes up, utilize the bounce-back potential energy can support the tip of second stainless steel elastic connection piece 15 at the automobile exhaust pipe inner wall, reinforcing air duct 1 fixed stability.
The end parts of the two second stainless steel elastic connecting pieces 15 are respectively provided with the roller 16 which can be rotationally attached to the inner wall of the automobile exhaust pipe in a rotating mode, the second stainless steel elastic connecting pieces 15 are plugged into the automobile exhaust pipe, meanwhile, the roller 16 can be utilized to roll along the inner wall of the automobile exhaust pipe, and the second stainless steel elastic connecting pieces 15 can be plugged into the automobile exhaust pipe conveniently.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an automobile exhaust tests extraction element convenient to collect tail gas, includes air duct (1) and a plurality of gas receiver (2), its characterized in that: one end of the air duct (1) is of an open structure, the other end of the air duct is of a closed structure, the air duct (1) is inserted into the automobile exhaust pipe, and the open structure of the air duct (1) faces the automobile exhaust pipe;
the axial two ends of the gas storage pipes (2) are respectively connected with a gas inlet pipe (21) and a gas outlet pipe (22), each gas storage pipe (2) is connected with the radial side wall of the gas guide pipe (1) through the gas inlet pipe (21), and a sealing mechanism (4) capable of sealing the gas inlet pipe (21) and the gas outlet pipe (22) is arranged inside each gas storage pipe (2);
the sealing mechanism (4) comprises two sealing blocks (43), two guide rods (42) and two supporting cross rods (41), the two supporting cross rods (41) are respectively and fixedly arranged at two axial ends in the interior of the gas storage pipe (2), the two guide rods (42) are respectively in sliding insertion connection with the two supporting cross rods (41), the two sealing blocks (43) are respectively and fixedly arranged at one ends, far away from each other, of the two guide rods (42), and first springs (44) located between the sealing blocks (43) and the supporting cross rods (41) are sleeved on the outer walls of the guide rods (42);
the air storage pipe is characterized in that two hinge rods (47) are symmetrically arranged on the inner wall of the air storage pipe (2), hinge sleeves (48) are hinged to the end portions of the two hinge rods (47), T-shaped rods (49) are inserted into the end portions of the hinge sleeves (48) in a sliding mode through T-shaped grooves, a round table type top block (46) located between the two hinge sleeves (48) is fixedly arranged at the end portion of each guide rod (42) close to the air inlet pipe (21), a transverse plate (410) is fixedly arranged at the end portion of each guide rod (42) close to the air outlet pipe (22), an inverted T-shaped sliding groove is formed in the upper end of each transverse plate (410), two inverted T-shaped sliding blocks (411) are connected to the inner portion of the inverted T-shaped sliding groove in a sliding and clamping mode, and the end portions of the two T-shaped rods (49) are hinged to the side walls of the two inverted T-shaped sliding blocks (411) respectively;
the closed structure lateral wall of air duct (1) has pull pole (13) through the slip grafting of pull hole, and sealed piece (43) lateral wall that is close to intake pipe (21) is fixed and is equipped with ejector pin (45), the fixed cover of outer wall of pull pole (13) has been connect a plurality of and has been dialled movable block (19), the top of ejector pin (45) is run through intake pipe (21) and is extended to the top of air duct (1) inside and ejector pin (45) and be equipped with the jack-up inclined plane.
2. The device for testing and extracting automobile exhaust convenient for collecting exhaust according to claim 1, characterized in that: the air duct (1) is close to the one end outer wall symmetry of open structure and is equipped with two first stainless steel elastic connection pieces (11), and the stainless steel buckle (12) of R type structure are all fixed to the one end that two first stainless steel elastic connection pieces (11) kept away from each other.
3. The device for testing and extracting automobile exhaust convenient for collecting exhaust according to claim 2, characterized in that: the outer wall of one end, close to the opening structure, of the air duct (1) is symmetrically provided with two second stainless steel elastic connecting sheets (15) extending to the inner deep part of the automobile exhaust pipe, and the two second stainless steel elastic connecting sheets (15) and the two first stainless steel elastic connecting sheets (11) are distributed in a cross structure.
4. The automobile exhaust test extraction device convenient for exhaust collection according to claim 3, characterized in that: the end parts of the two second stainless steel elastic connecting sheets (15) are respectively and rotatably provided with a roller (16) which can be rotatably attached to the inner wall of the automobile exhaust pipe.
5. The device for testing and extracting automobile exhaust convenient for collecting exhaust according to claim 1, characterized in that: the outer wall of pull pole (13) is fixed to be cup jointed with stopper (17), and the outer wall of pull pole (13) has cup jointed second spring (18), the one end and stopper (17) lateral wall fixed connection of second spring (18), the inside enclosed construction lateral wall fixed connection of the other end and air duct (1).
6. The device for testing and extracting automobile exhaust convenient for collecting exhaust according to claim 5, characterized in that: a connecting block (111) is fixedly arranged on the radial side wall of the end part of the pull rod (13), a guide groove (110) which is distributed in a spiral structure is formed in one end, close to the opening, of the inner wall of the air guide pipe (1), and the end part of the connecting block (111) is in sliding clamping connection with the inside of the guide groove (110);
the other end of the drawing rod (13) is rotatably provided with a steel ring (14).
7. The device for testing and extracting automobile exhaust convenient for collecting exhaust according to claim 6, characterized in that: a buffer mechanism (3) is arranged at one end, close to the closed structure, of the outer wall of the air duct (1);
the buffer mechanism (3) comprises a mounting box (31), a mounting cavity (33) is arranged inside the mounting box (31), a communicating hole communicated with the inside of the mounting cavity (33) is formed in the side wall of the air guide pipe (1), a liquid storage cylinder (34) is fixedly arranged on the top end face inside the mounting cavity (33), a T-shaped push rod (35) is inserted into the liquid storage cylinder (34) in a sliding mode, hydraulic oil located in the space above the T-shaped push rod (35) is filled into the liquid storage cylinder (34), and the bottom end of the T-shaped push rod (35) penetrates through the bottom end face of the liquid storage cylinder (34) and the communicating hole in a sliding mode and extends into the air guide pipe (1);
two truncated cone-shaped inclined planes are symmetrically arranged at two ends of the outer wall of the limiting block (17), and truncated cone-shaped toggle inclined planes are arranged at the bottom end of the T-shaped push rod (35).
8. The device for testing and extracting automobile exhaust convenient for collecting exhaust according to claim 7, characterized in that: the inside of installation box (31) is equipped with buffer cavity (36) that are located installation cavity (33) one side, the inside of buffer cavity (36) is equipped with rubber gasbag (37), rubber gasbag (37) opening is connected with catheter (38), the tip of catheter (38) extends to the inside of installation cavity (33) and is connected with liquid storage barrel (34) lateral wall top.
9. The device for testing and extracting automobile exhaust convenient for collecting exhaust according to claim 8, characterized in that: the upper end of the mounting box (31) is provided with an air hole (32) communicated with the interior of the buffer cavity (36).
10. The extraction method of the automobile exhaust test extraction device convenient for collecting the exhaust adopts the automobile exhaust test extraction device convenient for collecting the exhaust, which is characterized by comprising the following steps of:
a1, inserting an air duct (1) into an automobile exhaust pipe, wherein an opening structure of the air duct (1) faces the automobile exhaust pipe, so that exhaust discharged from an automobile exhaust pipe enters the air duct (1);
a2, utilize sealing mechanism (4) to open intake pipe (21) and outlet duct (22), automobile exhaust gets into and can enter into gas storage tube (2) through air duct (1) smoothly, and simultaneously, air in gas storage tube (2) can converge automobile exhaust and derive gas storage tube (2), after the interval dead time, after automobile exhaust is followed simultaneously to the air in gas storage tube (2) promptly, utilize sealing mechanism (4) to seal intake pipe (21) and outlet duct (22) simultaneously, make a large amount of automobile exhaust of gas storage tube (2) inside storage, air stays the stock in greatly reduced gas storage tube (2), help the automobile exhaust that check out test set drawed in to gas storage tube (2) to carry out detection operation.
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|---|---|
| CN115165479B (en) | 2023-04-21 |
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