A carbon canister exhaust pipe exhaust volume detection device

Abstract

The present invention relates to an exhaust volume detection device for a carbon canister exhaust pipe, comprising a fixed bracket, on which a clamping mechanism, a diverter mechanism, a first positioning mechanism, a second positioning mechanism, a leak detection mechanism, a conveying mechanism and a dotting device are installed, the diverter mechanism is respectively connected to the first positioning mechanism, the second positioning mechanism and the conveying mechanism, and the leak detection mechanism is connected to the conveying mechanism; the present invention utilizes a first steel ball and a second steel ball to move in a carbon canister exhaust pipe, when the first steel ball and the second steel ball enter the leak detection mechanism in sequence from the exhaust port of the carbon canister exhaust pipe in no particular order, the dotting device will dot the carbon canister exhaust pipe, indicating that the exhaust volume of the carbon canister exhaust pipe is qualified, otherwise, as long as one or two of the first steel ball and the second steel ball are missed in the detection of the leak detection mechanism, the dotting device will not dot the carbon canister exhaust pipe, indicating that the exhaust volume of the carbon canister exhaust pipe is unqualified, thereby improving the factory quality of the carbon canister exhaust pipe.

Description

Technical Field

[0001] The invention relates to the technical field of carbon canister emission pipe detection, and in particular to an exhaust volume detection device for a carbon canister emission pipe. Background Art

[0002] With the development of the automobile industry, the requirements for environmental protection and energy conservation are getting higher and higher. Carbon canisters have gradually become standard parts of automobiles, and carbon canister exhaust pipes are necessary parts of carbon canister components. After the carbon canister exhaust pipe is produced, in order to ensure that the carbon canister exhaust pipe can be used normally, it is necessary to inspect the inside of the carbon canister exhaust pipe.

[0003] The existing method of testing the carbon canister exhaust pipe is to blow air into the air inlet of the carbon canister exhaust pipe to check whether the carbon canister exhaust pipe is blocked. However, this method can only detect whether the inside of the carbon canister exhaust pipe is blocked, but cannot detect whether the exhaust volume of the carbon canister exhaust pipe is qualified, which will reduce the factory quality of the carbon canister exhaust pipe. Summary of the invention

[0004] The purpose of the present invention is to design a carbon canister exhaust pipe exhaust volume detection device so as to solve the problems mentioned in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A carbon canister exhaust pipe exhaust volume detection device comprises a fixed bracket, on which a clamping mechanism, a diverter mechanism, a first positioning mechanism, a second positioning mechanism, a leak detection mechanism, a conveying mechanism and a dotting device are installed, the diverter mechanism is respectively connected to the first positioning mechanism, the second positioning mechanism and the conveying mechanism, and the leak detection mechanism is connected to the conveying mechanism;

[0007] The clamping mechanism is used to clamp and fix the carbon canister exhaust pipe;

[0008] The diversion mechanism is used to divert the first steel ball and the second steel ball to the first positioning mechanism and the second positioning mechanism;

[0009] The first positioning mechanism is aligned with the first air inlet of the carbon canister discharge pipe, and is used to position the first steel ball and push the first steel ball into the first air inlet of the carbon canister discharge pipe;

[0010] The second positioning mechanism is aligned with the second air inlet of the carbon canister discharge pipe, and is used to position the second steel ball and push the second steel ball into the second air inlet of the carbon canister discharge pipe;

[0011] The leak detection mechanism is aligned with the exhaust port of the carbon canister exhaust pipe and is electrically connected to the spotting device, and is used to detect the first steel ball and the second steel ball discharged from the exhaust port of the carbon canister exhaust pipe;

[0012] The conveying mechanism is used to receive the first steel ball and the second steel ball discharged by the leak picking mechanism, and transmit the first steel ball and the second steel ball to the diversion mechanism.

[0013] Furthermore, the clamping mechanism includes a first fixing plate, a second fixing plate, a third fixing plate, a first clamping cylinder, a second clamping cylinder and a third clamping cylinder, the first fixing plate, the second fixing plate and the third fixing plate are respectively provided with grooves adapted to the first air inlet, the second air inlet and the exhaust port of the carbon canister exhaust pipe, and the output ends of the first clamping cylinder, the second clamping cylinder and the third clamping cylinder are fixedly connected with pressure blocks.

[0014] Furthermore, the diverter mechanism includes a diverter cylinder and a diverter fixing block, the diverter fixing block is provided with a penetrating sliding hole inside, the side of the diverter fixing block is provided with a first through hole connected to the sliding hole, the other end of the first through hole is connected to the conveying mechanism through a recovery pipe, a slider is installed at the output end of the diverter cylinder, the slider is located inside the sliding hole, the bottom of the slider is provided with a recovery groove aligned with the first through hole, the bottom of the diverter fixing block is respectively provided with a second through hole and a third through hole which are arranged opposite to each other and connected to the sliding hole, the other end of the second through hole is connected to the first positioning mechanism through the first diverter pipe, the other end of the third through hole is connected to the second positioning mechanism through the second diverter pipe, and the second through hole and the third through hole are located in front of the moving direction of the recovery groove.

[0015] Furthermore, the first positioning mechanism includes a first positioning cylinder and a first positioning plate installed at the output end of the first positioning cylinder, the first positioning plate is provided with a first positioning hole extending therethrough, the top end of the first positioning hole is aligned with the outlet of the first diversion pipe, the bottom end of the first positioning hole is in contact with the plate surface of the first fixing plate, and the first air inlet of the carbon canister exhaust pipe is located in front of the moving direction of the first positioning hole.

[0016] Furthermore, the second positioning mechanism includes a second positioning cylinder and a second positioning plate installed at the output end of the second positioning cylinder, the second positioning plate is provided with a second positioning hole extending therethrough, the top end of the second positioning hole is aligned with the outlet of the second diverter pipe, the bottom end of the second positioning hole is in contact with the plate surface of the second fixed plate, and the second air inlet of the carbon canister exhaust pipe is located in front of the moving direction of the second positioning hole.

[0017] Furthermore, the leak detection mechanism includes a leak detection tube and a leak detection cylinder, the leak detection tube is sequentially mounted with a first detection head and a second detection head, the leak detection cylinder and the dotting device are electrically connected to the first detection head and the second detection head, one end of the leak detection tube is aligned with the exhaust port of the carbon canister exhaust pipe, and a collecting tank is provided below the other end, a baffle is provided between the leak detection tube and the collecting tank, and the baffle is fixedly connected to the output end of the leak detection cylinder.

[0018] Furthermore, the conveying mechanism includes a box body, a conveying pipe is provided inside the box body, one end of the conveying pipe passes through the top of the box body and is connected with the bottom of the collecting tank, a support block is fixedly connected to the top of the inside of the box body, a door panel is elastically hinged on the support block, the door panel abuts against one end of the conveying pipe away from the collecting tank, the bottom of the box body is connected to the diversion mechanism, and the side of the box body is connected to an inflation unit.

[0019] Furthermore, the support block and the door panel are rotationally connected via a pin shaft, and a torsion spring is installed outside the pin shaft.

[0020] Furthermore, the bottom of the box body is a conical structure.

[0021] Furthermore, the inflation unit is an air compressor, and the side of the box body is connected to the air compressor through an air compressor pipe.

[0022] The beneficial effects of the present invention are:

[0023] The carbon canister discharge pipe to be inspected is fixed on the fixed bracket by the clamping mechanism, and then the diversion mechanism is started, and the diversion mechanism diverts the first steel ball and the second steel ball to the first positioning mechanism and the second positioning mechanism, and the first positioning mechanism pushes the first steel ball into the first air inlet of the carbon canister discharge pipe, and the second positioning mechanism pushes the second steel ball into the second air inlet of the carbon canister discharge pipe, and the first steel ball and the second steel ball will move in the carbon canister discharge pipe. When the first steel ball and the second steel ball enter the leak detection mechanism from the exhaust port of the carbon canister discharge pipe in no particular order, the leak detection mechanism can detect the first steel ball and the second steel ball and obtain two signal sources, and then transmit the two signal sources to the dotting device, and the dotting device will dot on the carbon canister discharge pipe, indicating that the exhaust volume of the carbon canister discharge pipe is qualified, otherwise, as long as one or both of the first steel ball and the second steel ball are missed in the detection of the leak detection mechanism, the two signal sources will not be obtained, and the dotting device will not dot on the carbon canister discharge pipe, indicating that the exhaust volume of the carbon canister discharge pipe is unqualified, thereby improving the factory quality of the carbon canister discharge pipe;

[0024] When the exhaust volume of the carbon canister exhaust pipe is qualified, the leak detection mechanism discharges the first steel ball and the second steel ball into the conveying mechanism, and the conveying mechanism then conveys the first steel ball and the second steel ball to the diversion mechanism. There is no need to manually take and place the steel balls, which is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the diversion mechanism in the present invention;

[0028] Figure 3 It is a partial cross-sectional view of the diversion mechanism in the present invention;

[0029] Figure 4 A partial cross-sectional view of the diversion mechanism of the present invention from another perspective;

[0030] Figure 5 It is a structural schematic diagram of the clamping mechanism in the present invention;

[0031] Figure 6 It is a structural schematic diagram of the first positioning mechanism in the present invention;

[0032] Figure 7 is a structural schematic diagram of the second positioning mechanism in the present invention;

[0033] Figure 8 It is a structural schematic diagram of the connection between the leakage detection mechanism and the conveying mechanism in the present invention;

[0034] Fig. 9 It is a structural schematic diagram of the leakage detection mechanism in the present invention;

[0035] Fig.10 It is a cross-sectional view of the conveying mechanism in the present invention.

[0036] The names of the components marked in the figure are as follows:

[0037] 1. Fixed bracket; 2. Carbon canister discharge pipe; 3. First fixed plate; 4. Second fixed plate; 5. Third fixed plate; 6. First pressing cylinder; 7. Second pressing cylinder; 8. Third pressing cylinder; 9. Pressing block; 10. Diverter cylinder; 11. Diverter fixed block; 12. Slide hole; 13. First through hole; 14. Recovery pipe; 15. Sliding block; 16. Recovery groove; 17. Second through hole; 18. Third through hole; 19. First diverter pipe; 20 , the second shunt pipe; 21, the first positioning cylinder; 22, the first positioning plate; 23, the first positioning hole; 24, the second positioning cylinder; 25, the second positioning plate; 26, the second positioning hole; 27, the leak detection tube; 28, the leak detection cylinder; 29, the first detection head; 30, the second detection head; 31, the collecting tank; 32, the baffle; 33, the box; 34, the delivery pipe; 35, the support block; 36, the door panel; 37, the air compressor pipe; 38, the dotting device. DETAILED DESCRIPTION

[0038] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0039] like Figure 1-10 As shown, a carbon canister exhaust pipe exhaust volume detection device includes a fixed bracket 1, on which a clamping mechanism, a diverter mechanism, a first positioning mechanism, a second positioning mechanism, a leak detection mechanism, a conveying mechanism and a dotting device 38 are installed, the diverter mechanism is respectively connected to the first positioning mechanism, the second positioning mechanism and the conveying mechanism, and the leak detection mechanism is connected to the conveying mechanism;

[0040] The clamping mechanism includes a first fixing plate 3, a second fixing plate 4, a third fixing plate 5, a first pressing cylinder 6, a second pressing cylinder 7 and a third pressing cylinder 8. The first fixing plate 3, the second fixing plate 4 and the third fixing plate 5 are respectively provided with grooves adapted to the first air inlet, the second air inlet and the exhaust port of the carbon canister exhaust pipe 2. The output ends of the first pressing cylinder 6, the second pressing cylinder 7 and the third pressing cylinder 8 are all fixedly connected with a pressing block 9. The pressing block 9 at the output end of the first pressing cylinder 6 presses the first air inlet of the carbon canister exhaust pipe 2 into the groove of the first fixing plate 3, the pressing block 9 at the output end of the second pressing cylinder 7 presses the second air inlet of the carbon canister exhaust pipe 2 into the groove of the second fixing plate 4, and the pressing block 9 at the output end of the third pressing cylinder 8 presses the exhaust port of the carbon canister exhaust pipe 2 into the groove of the third fixing plate 5, so as to facilitate the fixing of the carbon canister exhaust pipe 2 on the fixing bracket 1 so as to carry out subsequent inspection of the carbon canister exhaust pipe 2.

[0041] The flow diversion mechanism includes a flow diversion cylinder 10 and a flow diversion fixing block 11. The flow diversion fixing block 11 is provided with a sliding hole 12 passing therethrough inside. A first through hole 13 communicating with the sliding hole 12 is provided on the side of the flow diversion fixing block 11. The other end of the first through hole 13 is communicated with the conveying mechanism through a recovery pipe 14. A slider 15 is installed at the output end of the flow diversion cylinder 10. The slider 15 is located inside the sliding hole 12. A recovery groove 16 aligned with the first through hole 13 is provided at the bottom of the slider 15. A second through hole 17 and a third through hole 18 which are arranged opposite to each other and communicated with the sliding hole 12 are provided at the bottom of the flow diversion fixing block 11. The other end of the second through hole 17 is communicated with the first positioning mechanism through a first diversion pipe 19. The other end of the third through hole 18 is communicated with the first positioning mechanism through a first diversion pipe 19. The second through hole 17 and the third through hole 18 are located in front of the moving direction of the recovery tank 16. When the first steel ball and the second steel ball move to the first through hole 13 through the recovery tank 14 and enter the recovery tank 16 along the first through hole 13, the flow dividing cylinder 10 moves forward in the slide hole 12 by pushing the slider 15. When the recovery tank 16 moves to the top of the second through hole 17 and the third through hole 18, the first steel ball and the second steel ball in the recovery tank 16 will fall into the second through hole 17 and the third through hole 18 respectively, and the first steel ball will move to the first positioning mechanism through the first flow dividing tube 19, and the second steel ball will move to the second positioning mechanism through the second flow dividing tube 20;

[0042] The first positioning mechanism includes a first positioning cylinder 21 and a first positioning plate 22 installed at the output end of the first positioning cylinder 21. The first positioning plate 22 is provided with a first positioning hole 23 that penetrates through it. The top end of the first positioning hole 23 is aligned with the outlet of the first shunt pipe 19. The bottom end of the first positioning hole 23 contacts the plate surface of the first fixing plate 3. The first air inlet of the carbon canister discharge pipe 2 is located in front of the moving direction of the first positioning hole 23. The first steel ball moves into the first positioning hole 23 through the first shunt pipe 19 for positioning. The first positioning cylinder 21 moves forward by pushing the first positioning plate 22. When the bottom end of the first positioning hole 23 is aligned with the first air inlet of the carbon canister discharge pipe 2, the first steel ball enters the carbon canister discharge pipe 2 through the first air inlet of the carbon canister discharge pipe 2.

[0043] The second positioning mechanism includes a second positioning cylinder 24 and a second positioning plate 25 installed at the output end of the second positioning cylinder 24. The second positioning plate 24 is provided with a second positioning hole 26 that penetrates through it. The top end of the second positioning hole 26 is aligned with the outlet of the second shunt pipe 20. The bottom end of the second positioning hole 26 contacts the plate surface of the second fixing plate 4. The second air inlet of the carbon canister discharge pipe 2 is located in front of the moving direction of the second positioning hole 26. The second steel ball moves into the second positioning hole 26 through the second shunt pipe 20 for positioning. The second positioning cylinder 24 moves forward by pushing the second positioning plate 25. When the bottom end of the second positioning hole 26 is aligned with the second air inlet of the carbon canister discharge pipe 2, the second steel ball enters the carbon canister discharge pipe 2 through the second air inlet of the carbon canister discharge pipe 2.

[0044] The leak detection mechanism includes a leak detection tube 27 and a leak detection cylinder 28. A first detection head 29 and a second detection head 30 are installed on the leak detection tube 27 in sequence. The leak detection cylinder 28 and the dotting device 38 are electrically connected to the first detection head 29 and the second detection head 30. The dotting head of the dotting device 38 is aligned with the carbon canister exhaust pipe 2. One end of the leak detection tube 27 is aligned with the exhaust port of the carbon canister exhaust pipe 2. A collecting tank 31 is provided below the other end. A baffle 32 is provided between the leak detection tube 27 and the collecting tank 31. The baffle 32 is fixedly connected to the output end of the leak detection cylinder 28. Under normal circumstances, the leak detection cylinder 28 is in an extended state, so that the baffle 32 can block the outlet of the leak detection tube 27, so that the first steel ball and the second steel ball can stop in the leak detection tube 27 in no particular order after entering the leak detection tube 27, so that the first detection head 29 and the second detection head 30 can detect the first steel ball and the second steel ball, and avoid the first steel ball and the second steel ball moving too fast. In the event of missed detection, when the first detection head 29 and the second detection head 30 detect the first steel ball and the second steel ball, two signal sources are obtained, and then the two signal sources are transmitted to the controller in the dotting device 38. The controller will control the dotting device 38 to dot the carbon canister exhaust pipe 2 only after receiving the two signal sources, indicating that the exhaust volume of the carbon canister exhaust pipe 2 is qualified. Otherwise, as long as the first detection head 29 and the second detection head 30 miss one or both of the first steel ball and the second steel ball during the detection process, the two signal sources will not be obtained, and the dotting device 38 will not dot the carbon canister exhaust pipe 2, indicating that the exhaust volume of the carbon canister exhaust pipe 2 is unqualified, thereby improving the factory quality of the carbon canister exhaust pipe 2. After the detection is qualified, the leak detection cylinder 28 will receive the two signal sources, and the leak detection cylinder 28 will shrink, driving the baffle 32 to leave the outlet of the leak detection pipe 27, so that the first steel ball and the second steel ball can fall into the collecting tank 31;

[0045] The conveying mechanism includes a box body 33, and a conveying pipe 34 is arranged inside the box body 33. One end of the conveying pipe 34 passes through the top of the box body 33 and is connected to the bottom of the collecting tank 31. A support block 35 is fixedly connected to the top of the box body 33. A door plate 36 is connected to the support block 35. The door plate 36 abuts against one end of the conveying pipe 34 away from the collecting tank 31. The support block 36 and the door plate 35 are rotatably connected by a pin shaft. A torsion spring is installed outside the pin shaft. The door plate 35 can make the torsion spring stressed when swinging. The bottom of the box body 33 is connected to the end of the recovery pipe 14 away from the first through hole 13. The bottom of the box body 33 is a conical structure, which is convenient for the first steel ball or the second steel ball to fall smoothly into the recovery pipe 14 The side of the box body 33 is connected with an air compression pipe 37, and the other end of the air compression pipe 37 is connected with an air compressor. When the first steel ball and the second steel ball in the collecting tank 31 fall into the delivery pipe 34, the gravity of the first steel ball and the second steel ball will push open the door panel 35 and then fall on the bottom of the box body 33. After the door panel 35 is opened, it will drive the torsion spring to twist and bear force. After the first steel ball and the second steel ball completely leave the delivery pipe 34, the door panel 35 is closed again under the action of the torsion spring, so that the box body 33 becomes a sealed structure again. In this way, when the air compressor blows air pressure into the box body 33 through the air compression pipe 37, the air pressure will push the first steel ball and the second steel ball to move along the recovery pipe 14 to the diversion mechanism.

[0046] Working principle:

[0047] like Figure 1-10 As shown, when the carbon canister exhaust pipe exhaust volume detection device is used, the carbon canister exhaust pipe 2 is first fixed on the fixing bracket 1, and the first air inlet of the carbon canister exhaust pipe 2 is pressed into the groove of the first fixing plate 3 by the pressing block 9 at the output end of the first pressing cylinder 6, and the second air inlet of the carbon canister exhaust pipe 2 is pressed into the groove of the second fixing plate 4 by the pressing block 9 at the output end of the second pressing cylinder 7, and the exhaust port of the carbon canister exhaust pipe 2 is pressed into the groove of the third fixing plate 5 by the pressing block 9 at the output end of the third pressing cylinder 8;

[0048] After the carbon canister discharge pipe 2 is fixed, the first positioning cylinder 21 moves forward by pushing the first positioning plate 22. When the bottom end of the first positioning hole 23 is aligned with the first air inlet of the carbon canister discharge pipe 2, the first steel ball in the first positioning hole 23 will enter the carbon canister discharge pipe 2 through the first air inlet of the carbon canister discharge pipe 2. The second positioning cylinder 24 moves forward by pushing the second positioning plate 25. When the bottom end of the second positioning hole 26 is aligned with the second air inlet of the carbon canister discharge pipe 2, the second steel ball in the second positioning hole 26 will enter the carbon canister discharge pipe 2 through the second air inlet of the carbon canister discharge pipe 2. Then, the first steel ball and the second steel ball will move in the carbon canister discharge pipe 2.

[0049] When the first steel ball and the second steel ball enter the leak detection tube 27 from the exhaust port of the carbon canister exhaust pipe 2 in no particular order, since the leak detection cylinder 28 is in an extended state, the baffle 32 can block the outlet of the leak detection tube 27, so that the first steel ball and the second steel ball can stop in the leak detection tube 27 after entering the leak detection tube 27, and the first detection head 29 and the second detection head 30 will detect the first steel ball and the second steel ball. The first detection head 29 and the second detection head 30 detect the first steel ball and the second steel ball to obtain two signal sources, and then transmit the two signal sources to the controller in the dotting device 38. The controller will control the dotting device 38 to dot the carbon after receiving the two signal sources. Dotting is performed on the canister discharge pipe 2, indicating that the exhaust volume of the canister discharge pipe 2 is qualified. Otherwise, if one or both of the first steel ball and the second steel ball do not enter the leak detection pipe 27, the first detection head 29 and the second detection head 30 will not receive two signal sources, and the dotting device 38 will not dotting on the canister discharge pipe 2, indicating that there is at least foreign matter inside the canister discharge pipe 2, thereby making the exhaust volume of the exhaust volume unqualified. After the test is qualified, the leak detection cylinder 28 will receive two signal sources, and the leak detection cylinder 28 will shrink, driving the baffle 32 to leave the outlet of the leak detection pipe 27, so that the first steel ball and the second steel ball can fall into the collection tank 31;

[0050] When the first steel ball and the second steel ball in the collecting tank 31 fall into the delivery pipe 34, the gravity of the first steel ball or the second steel ball will push open the door panel 35 and then fall on the bottom of the box body 33. After the door panel 35 is opened, it will drive the torsion spring to twist and bear force. After the first steel ball or the second steel ball completely leaves the delivery pipe 34, the door panel 35 is closed again under the action of the torsion spring, so that the box body 33 becomes a sealed structure again. In this way, when the air compressor blows air pressure into the box body 33 through the air pressure pipe 37, the air pressure will push the first steel ball and the second steel ball to move along the recovery pipe 14 to the recovery tank 16.

[0051] When the first steel ball and the second steel ball move to the first through hole 13 through the recovery pipe 14, and enter the recovery groove 16 along the first through hole 13, the diverter cylinder 10 moves forward in the slide hole 12 by pushing the slider 15. When the recovery groove 16 moves to just above the second through hole 17 and the third through hole 18, the first steel ball and the second steel ball in the recovery groove 16 will fall into the second through hole 17 and the third through hole 18 respectively. The first steel ball moves to the first positioning hole 23 through the first diverter pipe 19 for positioning, and the second steel ball moves to the second positioning hole 26 through the second diverter pipe 20 for positioning.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A carbon canister exhaust pipe exhaust volume detection device, characterized in that: The invention comprises a fixed support (1), on which a clamping mechanism, a diverting mechanism, a first positioning mechanism, a second positioning mechanism, a leak detection mechanism, a conveying mechanism and a dotting device (38) are mounted, the diverting mechanism being connected to the first positioning mechanism, the second positioning mechanism and the conveying mechanism respectively, and the leak detection mechanism being connected to the conveying mechanism; The clamping mechanism is used to clamp and fix the carbon canister exhaust pipe (2); The shunting mechanism is used to shunt the first steel ball and the second steel ball to the first positioning mechanism and the second positioning mechanism; The first positioning mechanism is aligned with the first air inlet of the carbon canister discharge pipe (2) and is used to position the first steel ball and push the first steel ball into the first air inlet of the carbon canister discharge pipe (2); The second positioning mechanism is aligned with the second air inlet of the carbon canister discharge pipe (2) and is used to position the second steel ball and push the second steel ball into the second air inlet of the carbon canister discharge pipe (2); The leak detection mechanism is aligned with the exhaust port of the carbon canister exhaust pipe (2) and is electrically connected to the spotting device (38) for detecting the first steel ball and the second steel ball discharged from the exhaust port of the carbon canister exhaust pipe (2); The conveying mechanism is used to receive the first steel ball and the second steel ball discharged by the leak detection mechanism, and convey the first steel ball and the second steel ball to the diversion mechanism; The clamping mechanism comprises a first fixing plate (3), a second fixing plate (4), a third fixing plate (5), a first pressing cylinder (6), a second pressing cylinder (7) and a third pressing cylinder (8); the first fixing plate (3), the second fixing plate (4) and the third fixing plate (5) are respectively provided with grooves adapted to the first air inlet, the second air inlet and the exhaust port of the carbon canister exhaust pipe (2); and the output ends of the first pressing cylinder (6), the second pressing cylinder (7) and the third pressing cylinder (8) are all fixedly connected with a pressing block (9); The flow diversion mechanism comprises a flow diversion cylinder (10) and a flow diversion fixed block (11); a sliding hole (12) penetrating therethrough is provided inside the flow diversion fixed block (11); a first through hole (13) communicating with the sliding hole (12) is provided on a side surface of the flow diversion fixed block (11); the other end of the first through hole (13) is communicated with the conveying mechanism via a recovery pipe (14); a sliding block (15) is installed at the output end of the flow diversion cylinder (10); the sliding block (15) is located inside the sliding hole (12); and a first through hole (13) is provided at the bottom of the sliding block (15) so as to align with the first through hole (13). A recovery groove (16) having a through hole (13), a second through hole (17) and a third through hole (18) which are arranged opposite to each other and communicate with the slide hole (12) are respectively provided at the bottom of the diverter fixed block (11), the other end of the second through hole (17) is communicated with the first positioning mechanism via a first diverter pipe (19), the other end of the third through hole (18) is communicated with the second positioning mechanism via a second diverter pipe (20), and the second through hole (17) and the third through hole (18) are located in front of the recovery groove (16) in the moving direction; The leak detection mechanism comprises a leak detection tube (27) and a leak detection cylinder (28); a first detection head (29) and a second detection head (30) are sequentially mounted on the leak detection tube (27); the leak detection cylinder (28) and the dotting device (38) are electrically connected to the first detection head (29) and the second detection head (30); one end of the leak detection tube (27) is aligned with the exhaust port of the carbon canister exhaust pipe (2); a collecting tank (31) is provided below the other end; a baffle (32) is provided between the leak detection tube (27) and the collecting tank (31); and the baffle (32) is fixedly connected to the output end of the leak detection cylinder (28).

2. The carbon canister exhaust pipe exhaust volume detection device according to claim 1, characterized in that: The first positioning mechanism comprises a first positioning cylinder (21) and a first positioning plate (22) mounted at the output end of the first positioning cylinder (21); a first positioning hole (23) is provided on the first positioning plate (22); the top end of the first positioning hole (23) is aligned with the outlet of the first shunt pipe (19); the bottom end of the first positioning hole (23) is in contact with the plate surface of the first fixing plate (3); and the first air inlet of the carbon canister discharge pipe (2) is located in front of the first positioning hole (23) in the moving direction.

3. The carbon canister exhaust pipe exhaust volume detection device according to claim 2, characterized in that: The second positioning mechanism comprises a second positioning cylinder (24) and a second positioning plate (25) mounted at the output end of the second positioning cylinder (24); a second positioning hole (26) is provided through the second positioning plate (25); the top end of the second positioning hole (26) is aligned with the outlet of the second shunt pipe (20); the bottom end of the second positioning hole (26) is in contact with the plate surface of the second fixing plate (4); and the second air inlet of the carbon canister discharge pipe (2) is located in front of the second positioning hole (26) in the moving direction.

4. The carbon canister exhaust pipe exhaust volume detection device according to claim 1, characterized in that: The conveying mechanism comprises a box body (33), a conveying pipe (34) is provided inside the box body (33), one end of the conveying pipe (34) passes through the top of the box body (33) and is connected to the bottom of the collecting tank (31), a support block (35) is fixedly connected to the top of the box body (33), a door plate (36) is elastically hinged on the support block (35), the door plate (36) is in contact with one end of the conveying pipe (34) away from the collecting tank (31), the bottom of the box body (33) is connected to the diversion mechanism, and the side of the box body (33) is connected to the inflation unit.

5. The carbon canister exhaust pipe exhaust volume detection device according to claim 4, characterized in that: The support block (35) and the door panel (36) are rotatably connected via a pin shaft, and a torsion spring is installed outside the pin shaft.

6. The carbon canister exhaust pipe exhaust volume detection device according to claim 4, characterized in that: The bottom of the box body (33) is a conical structure.

7. The carbon canister exhaust pipe exhaust volume detection device according to claim 4, characterized in that: The inflation unit is an air compressor, and the side of the box body (33) is connected to the air compressor via an air compressor pipe (37).

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