CN210198814U

CN210198814U - Collection device for detecting waste gas

Info

Publication number: CN210198814U
Application number: CN201921109968.2U
Authority: CN
Inventors: Mingchao Bai; 白明超; Jie Li; 李�杰; Yuwen Chen; 陈宇文; Wenhui Yin; 尹文汇
Original assignee: Guangdong Yuefeng Environmental Protection Co Ltd
Current assignee: Guangdong Yuefeng Environmental Protection Co Ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-03-27
Anticipated expiration: 2029-07-15

Abstract

The utility model relates to a detect collection device for waste gas, it includes the ventilation pipe, the bottom of ventilation pipe is provided with the locating piece, the exhaust tube that runs through the locating piece is seted up at the middle part of locating piece, the locating piece includes stopper and the arch of setting at the stopper middle part, the arch is located the ventilation pipe, the cover is equipped with the gasbag in the arch, the gasbag is provided with air inlet and gas vent respectively with the relative both ends of stopper looks butt one side, be provided with in the stopper and supply the gas filled gas charging component of gasbag, the air inlet is located the one end that is close to gas charging component. The top of ventilation pipe is provided with the propelling movement subassembly, the propelling movement subassembly is including the push pedal, the recess with protruding looks adaptation is seted up at the middle part of push pedal, the both ends that the push pedal is relative all are provided with the sealed pad with the inner wall looks butt of ventilation pipe. The utility model discloses have the good effect of leakproofness.

Description

Collection device for detecting waste gas

Technical Field

The utility model belongs to the technical field of the technique of exhaust gas collection and specifically relates to a detect collection device for waste gas.

Background

The waste gas refers to toxic and harmful gas discharged by human in the production and living process. The exhaust gas contains many kinds of pollutants, the physical and chemical properties of the pollutants are very complex, the toxicity is different, and in order to solve the problem of exhaust gas pollution, detection equipment is needed to detect the components of the exhaust gas and take measures to correspondingly treat the components.

The traditional Chinese patent with publication number CN205384170U discloses a collecting device for waste gas detection, which comprises a ventilation pipe, wherein a sealing cover plate is arranged at the upper part of the ventilation pipe; the side of the ventilation pipe is provided with a valve, one end of the valve is communicated with the collection bag, and the other end of the valve is communicated with the inside of the ventilation pipe. During the use with the ventilation pipe insert the exhaust emission pipe in, after the ventilation pipe is full of to waste gas, close the upper end of ventilation pipe through sealed apron, open the valve simultaneously, waste gas gets into the waste gas collection bag.

The above prior art solutions have the following drawbacks: this exhaust gas detection collection device, its leakproofness is relatively poor, other gases of easy thoughtlessly advancing of in-process of collecting waste gas influence the testing result.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a detect collection device for waste gas has the good effect of leakproofness.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a collecting device for detecting waste gas comprises a vent pipe, wherein a positioning block is arranged at the bottom end of the vent pipe, the vertical section of the positioning block is T-shaped, an exhaust pipe penetrating through the positioning block is arranged in the middle of the positioning block, the positioning block comprises a limiting block and a bulge arranged in the middle of the limiting block, the bulge is positioned in the vent pipe, an air bag is sleeved on the bulge, an air inlet and an air outlet are respectively arranged at two opposite ends of one side, abutted to the limiting block, of the air bag, an inflation assembly for inflating the air bag is arranged in the limiting block, the air inlet is positioned at one end close to the inflation assembly, a pushing assembly is arranged at the top of the vent pipe and comprises a push plate, a push rod and a handle, one end of the push rod penetrates through the top of the vent pipe and is fixedly connected with the handle, one end, far, and sealing gaskets are arranged at two opposite ends of the push plate and are abutted against the inner wall of the ventilation pipe.

By adopting the technical scheme, the positioning block is fixed with the bottom end of the vent pipe, and the inflatable air bag is arranged on the positioning block, so that the air tightness of the connecting and fixing part of the vent pipe and the positioning block is ensured; the recess with protruding looks adaptation is seted up at the middle part of push pedal, has guaranteed the seamless adaptation of push pedal and locating piece, because be provided with the air duct on the locating piece, when waste gas is collected to needs, the pulling handle, the handle drives the push pedal through the push rod and reciprocates along the inner wall of ventilation pipe for waste gas enters into the ventilation pipe from the air duct in, accomplishes the collection to waste gas, the whole fine leakproofness of having guaranteed in the ventilation pipe of the process of collecting waste gas.

The utility model discloses further set up to: aerify the subassembly including the mounting groove, be located the mounting groove and slide wedge, the fixed baffle that sets up in the relative both sides of mounting groove notch and the spring of setting in the mounting groove of being connected with the mounting groove inner wall, the notch orientation of mounting groove is kept away from bellied one side setting, the perpendicular cross-section of wedge is isosceles trapezoid, the great one end in wedge cross-section and spring fixed connection, the bottom fixed connection of the one end of wedge and mounting groove is kept away from to the spring, the less one end in wedge cross-section is provided with the propulsion pole that extends to the stopper outside.

Through adopting above-mentioned technical scheme, promote the impulse lever and make the wedge slide along mounting groove inner wall maximum, the air pressure that will be in the mounting groove is to the air inlet of gasbag, and the elastic potential energy effect of spring is down with the wedge bullet back to initial position, accomplishes the one-time inflation to the gasbag.

The utility model discloses further set up to: the larger pot head in wedge block cross-section is equipped with the seal cover with mounting groove inside wall sliding connection.

Through adopting above-mentioned technical scheme, the setting up of seal cover has guaranteed the gas tightness in the mounting groove, ensures that the air in the mounting groove can normally be compressed.

The utility model discloses further set up to: the inflation assembly further comprises a second air inlet and a second air outlet, the second air inlet is located on the side wall, close to the air inlet, of the limiting block, a first one-way valve is arranged in the second air inlet and is communicated with the side wall of the mounting groove, the second air outlet is located at the bottom of the mounting groove, a second one-way valve is arranged in the second air outlet, and the second one-way valve is communicated with the air inlet.

By adopting the technical scheme, the arrangement of the first one-way valve ensures that outside air can enter the mounting groove under the action of pressure and the air entering the mounting groove cannot leak to the outside; the second check valve ensures that air in the installation groove can enter the air bag under the action of the wedge block and the air entering the air bag cannot flow back to the installation groove.

The utility model discloses further set up to: the limiting block is provided with a discharge port on the side wall close to the exhaust port, the discharge port is communicated with the exhaust port, and an exhaust valve is arranged at one end, far away from the exhaust port, of the discharge port.

Through adopting above-mentioned technical scheme, the gas vent communicates with each other with the discharge port and is connected, conveniently accomplishes the gassing to the gasbag, can accomplish the gassing to the gasbag through unscrewing discharge valve.

The utility model discloses further set up to: the bottom end of the ventilation pipe is turned outwards, a locking hole is formed in the part turned outwards, a limiting hole matched with the locking hole is formed in the limiting block, and a fastening piece is inserted into the locking hole and the limiting hole.

Through adopting above-mentioned technical scheme, use fastener fastening ventilation pipe and locating piece, this fixed mode is more firm, dismantles also convenient and fast more.

The utility model discloses further set up to: and the side wall of the ventilation pipe is provided with an air duct communicated with the inside of the ventilation pipe, and the air duct is provided with a valve.

Through adopting above-mentioned technical scheme, the setting up of air duct is convenient for extract the waste gas of collection in the ventilation pipe that needs to detect, effectual improvement work efficiency.

The utility model discloses further set up to: the handle is sleeved with an anti-slip sleeve.

Through adopting above-mentioned technical scheme, the setting up of antiskid cover increases the frictional force of operation personnel hand and handle, effectively reduces the in-process of collecting and appears the emergence of the accident that the hand slided and lead to.

To sum up, the utility model discloses a beneficial technological effect does:

1. the positioning block is fixed with the bottom end of the vent pipe, and an inflatable air bag is arranged on the positioning block, so that the air tightness of the connecting and fixing part of the vent pipe and the positioning block is ensured; because the air guide pipe is arranged on the positioning block, when waste gas needs to be collected, the handle is pulled, and the handle drives the push plate to move up and down along the inner wall of the ventilation pipe through the push rod, so that the waste gas enters the ventilation pipe from the air guide pipe, the collection of the waste gas is completed, and the sealing property in the ventilation pipe is well ensured in the whole waste gas collecting process;

2. the arrangement of the first check valve ensures that outside air can enter the mounting groove under the action of pressure and the air entering the mounting groove cannot leak to the outside; the second check valve ensures that air in the mounting groove can enter the air bag under the action of the wedge block and the air entering the air bag cannot flow back to the mounting groove;

3. the vent is arranged for deflating the air bag, and the deflation of the air bag can be completed by unscrewing the vent valve.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic sectional structure view of fig. 1.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

In the figure, 1, vent pipe; 11. a locking hole; 2. positioning blocks; 21. an air exhaust pipe; 22. a limiting block; 221. a limiting hole; 222. a fastener; 23. a protrusion; 24. an air bag; 241. an air inlet; 242. an exhaust port; 243. a discharge port; 244. an exhaust valve; 3. an inflation assembly; 31. mounting grooves; 32. a spring; 33. a wedge block; 331. sealing sleeves; 34. a baffle plate; 35. a push rod; 36. a second air inlet; 361. a first check valve; 37. a second exhaust port; 371. a second one-way valve; 4. a push assembly; 41. a push rod; 42. pushing the plate; 421. a gasket; 422. a groove; 43. a handle; 5. an air duct; 51. and (4) a valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the collecting device for detecting exhaust gas disclosed by the present invention comprises a ventilation pipe 1 and a positioning block 2, wherein the positioning block 2 is located at the bottom end of the ventilation pipe 1, and an inflation assembly 3 is arranged in the positioning block 2; be provided with propelling movement subassembly 4 on the ventilation pipe 1, be provided with air duct 5 on the lateral wall of ventilation pipe 1, the one end and the ventilation pipe 1 of air duct 5 communicate with each other and are connected, and the one end that air duct 5 kept away from ventilation pipe 1 is provided with valve 51.

As shown in fig. 1 and 2, the vertical section of the positioning block 2 is T-shaped, an air exhaust pipe 21 is arranged in the positioning block 2, and the air exhaust pipe 21 is located in the middle of the positioning block 2 and penetrates through the positioning block 2; the positioning block 2 comprises a limiting block 22 and a protrusion 23 arranged in the middle of the top end of the limiting block 22, the protrusion 23 is located in the ventilation pipe 1, four locking holes 11 are formed in the bottom end of the ventilation pipe 1 along the circumferential direction, a limiting hole 221 is formed in the limiting block 22, the limiting hole 221 is matched with the locking hole 11, a fastening piece 222 is inserted into the locking hole 11 and the limiting hole 221, and the fastening piece 222 is a screw rod. The pushing assembly 4 comprises a push rod 41, a push plate 42 arranged in the ventilation pipe 1 and a handle 43 sleeved with an anti-skid sleeve, the handle 43 is positioned outside the ventilation pipe 1, one end of the push rod 41 is fixedly connected with the handle 43, one end of the push rod 41 far away from the handle 43 is fixedly connected with the push plate 42, two opposite ends of the push plate 42 are provided with a sealing gasket 421 abutted to the inner wall of the ventilation pipe 1, and the middle part of the push plate 42 is provided with a groove 422 matched with the protrusion 23.

As shown in fig. 2 and 3, the protrusion 23 is sleeved with an air bag 24, two opposite ends of one side of the air bag 24, which is abutted to the limiting block 22, are respectively provided with an air inlet 241 and an air outlet 242, the air inlet 241 is located at one end of the limiting block 22, in which the inflation assembly 3 is arranged, and the inflation assembly 3 comprises an installation groove 31, a spring 32, a wedge block 33, two baffles 34, a push rod 35, a second air inlet 36 and a second air outlet 37; the notch of mounting groove 31 is kept away from the one end of arch 23 towards stopper 22, and second air inlet 36 is located stopper 22 and is close to the lateral wall of air inlet 241, is provided with first check valve 361 in the second air inlet 36, and first check valve 361 communicates with each other with the lateral wall of mounting groove 31 and is connected, and second gas vent 37 is located the bottom of mounting groove 31, is provided with second check valve 371 in the second gas vent 37, and second check valve 371 communicates with each other with air inlet 241 and is connected. The side wall of the limiting block 22 close to the air outlet 242 is provided with an air outlet 243, the air outlet 243 is communicated with the air outlet 242, and one end of the air outlet 243 far away from the air outlet 242 is provided with an air outlet valve 244.

As shown in fig. 2 and 3, the wedge block 33 and the spring 32 are located in the installation groove 31, the vertical section of the wedge block 33 is isosceles trapezoid, the sealing sleeve 331 is sleeved at the end with the larger section of the wedge block 33 and is fixedly connected with one end of the spring 32, and the end of the spring 32 far away from the wedge block 33 is fixedly connected with the bottom of the installation groove 31; the two baffles 34 are respectively positioned at two opposite sides of the notch of the mounting groove 31, the smaller end of the section of the wedge block 33 is fixedly connected with a push rod 35, and the end of the push rod 35 far away from the wedge block 33 passes through the gap between the two baffles 34 and extends out of the limiting block 22.

The implementation principle of the embodiment is as follows: when waste gas needs to be collected, the ventilation pipe 1 and the positioning block 2 are fastened by using the fastener 222, the pushing rod 35 is pushed to enable the wedge block 33 to slide along the inner wall of the installation groove 31 to the maximum extent, outside air enters the installation groove 31 through the first check valve 361 under the action of pressure, the air entering the installation groove 31 enters the air bag 24 from the second exhaust port 37 under the extrusion action of the wedge block 33, and the second check valve 371 ensures that the air in the installation groove 31 can enter the air bag 24 under the action of the wedge block 33 and the air entering the air bag 24 cannot flow back to the installation groove 31. The wedge block 33 rebounds the wedge block 33 to the initial position under the action of the elastic potential energy of the spring 32 to complete one-time inflation of the air bag 24, so that the air tightness of the connection and fixation position of the vent pipe 1 and the positioning block 2 is ensured; when waste gas needs to be collected, the handle 43 is pulled, the handle 43 drives the push plate 42 to move up and down along the inner wall of the ventilation pipe 1 through the push rod 41, so that the waste gas enters the ventilation pipe 1 from the suction pipe 21, and the collection of the waste gas is completed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A collecting device for detecting exhaust gases, comprising a ventilation duct (1), characterized in that: the bottom of ventilation pipe (1) is provided with locating piece (2), the vertical cross-section of locating piece (2) is the T type, aspiration tube (21) that runs through locating piece (2) are seted up at the middle part of locating piece (2), locating piece (2) include stopper (22) and set up protruding (23) in stopper (22) middle part, protruding (23) are located ventilation pipe (1), the cover is equipped with gasbag (24) on protruding (23), gasbag (24) are provided with air inlet (241) and gas vent (242) respectively with stopper (22) looks butt both ends relatively of one side, be provided with in stopper (22) and supply the aerated subassembly (3) of gasbag (24) to aerify, air inlet (241) are located the one end that is close to aerated subassembly (3), the top of ventilation pipe (1) is provided with propelling movement subassembly (4), propelling movement subassembly (4) include push pedal (42), Push rod (41) and handle (43), the top and handle (43) fixed connection of ventilation pipe (1) are passed to the one end of push rod (41), the one end and push pedal (42) fixed connection of handle (43) are kept away from in push rod (41), recess (422) with protruding (23) looks adaptation are seted up in the middle part of push pedal (42), the both ends that push pedal (42) are relative all are provided with sealed pad (421), sealed pad (421) and the inner wall looks butt of ventilation pipe (1).

2. A collecting device for detecting exhaust gas according to claim 1, wherein: aerify subassembly (3) including mounting groove (31), be located mounting groove (31) and slide wedge (33) of being connected, fixed setting at baffle (34) of the relative both sides of mounting groove (31) notch and spring (32) of setting in mounting groove (31) with mounting groove (31) inner wall, the notch orientation of mounting groove (31) is kept away from one side setting of arch (23), the perpendicular cross-section of wedge (33) is isosceles trapezoid, the great one end in wedge (33) cross-section and spring (32) fixed connection, the one end of wedge (33) and the bottom fixed connection of mounting groove (31) are kept away from in spring (32), the less one end in wedge (33) cross-section is provided with and extends to outside pushing ram (35) of stopper (22).

3. A collecting device for detecting exhaust gas according to claim 2, wherein: the end of the wedge block (33) with a larger section is sleeved with a sealing sleeve (331) which is in sliding connection with the inner side wall of the mounting groove (31).

4. A collecting device for detecting exhaust gas according to claim 3, wherein: aerify subassembly (3) and still include second air inlet (36) and second gas vent (37), second air inlet (36) are located stopper (22) and are close to on the lateral wall of air inlet (241), be provided with first check valve (361) in second air inlet (36), first check valve (361) communicate with each other with the lateral wall of mounting groove (31) and are connected, second gas vent (37) are located the bottom of mounting groove (31), be provided with second check valve (371) in second gas vent (37), second check valve (371) communicate with each other with air inlet (241) and are connected.

5. The collecting device for detecting exhaust gas according to claim 4, wherein: the side wall of the limiting block (22) close to the exhaust port (242) is provided with a discharge port (243), the discharge port (243) is communicated with the exhaust port (242), and one end, away from the exhaust port (242), of the discharge port (243) is provided with an exhaust valve (244).

6. A collecting device for detecting exhaust gas according to claim 1, wherein: the bottom end of the ventilation pipe (1) is outwards turned, a locking hole (11) is formed in the part, turned outwards, of the ventilation pipe, a limiting hole (221) matched with the locking hole (11) is formed in the limiting block (22), and a fastening piece (222) is inserted into the locking hole (11) and the limiting hole (221).

7. The collecting device for detecting exhaust gas according to claim 6, wherein: the side wall of the ventilation pipe (1) is provided with an air duct (5) communicated with the interior of the ventilation pipe (1), and the air duct (5) is provided with a valve (51).

8. A collecting device for detecting exhaust gas according to claim 1, wherein: the handle (43) is sleeved with an anti-slip sleeve.