CN214092023U

CN214092023U - Automobile exhaust pipe connecting device with high adaptability

Info

Publication number: CN214092023U
Application number: CN202120160852.2U
Authority: CN
Inventors: 周易; 李健; 葛锐; 朱文军; 吴三发; 辛雪军
Original assignee: Anhui Cummins Power Co Ltd
Current assignee: Anhui Cummins Power Co Ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-08-31
Anticipated expiration: 2031-01-20

Abstract

The invention discloses a high-adaptability automobile exhaust pipe connecting device, which comprises a pipe body, wherein a pressure pipe is arranged in an inner cavity of the pipe body, the whole pressure pipe is in a cylindrical shape which is communicated up and down, the pressure pipe is surrounded by a plurality of arc-shaped pressure plates which are distributed along the circumferential direction, overlapping steps which are convex along the circumferential direction are distributed at two ends of each arc-shaped pressure plate, two adjacent arc-shaped pressure plates are in overlapping fit in an inner-outer overlapping mode through the overlapping steps, an elastic part is arranged between the outer side wall of each arc-shaped pressure plate and the inner side wall of the pipe body, the arc-shaped pressure plates can move along the radial direction, arc-shaped slots are formed in the arc-shaped pressure plates, metal elastic plates are arranged in the arc-shaped slots, the bottom ends of the metal elastic plates are inserted into the arc-shaped slots of the arc-shaped pressure plates, and the top ends of the metal elastic plates extend out of the arc-shaped slots and are provided with guide plates with the top ends expanding outwards. Compared with the prior art, the invention has the following advantages: can adapt to automobile tail pipes with different diameters and is time-saving and labor-saving in installation.

Description

Automobile exhaust pipe connecting device with high adaptability

Technical Field

The invention relates to the technical field of automobile exhaust detection devices, in particular to an automobile exhaust pipe connecting device with high adaptability.

Background

The internal combustion engine is used as a power machine, has high thermal efficiency and wide power range, is widely applied to various fields of social production, and promotes the progress of human society. In recent years, the automobile holding capacity in our country is rapidly increased, and the rapid development of the automobile industry drives the development of related industries such as steel, petroleum and the like, but at the same time, a series of problems are brought. Among them, environmental pollution is a focus of increasing attention.

In order to determine whether the vehicle emission meets the requirements of the regulations, the whole vehicle production enterprises, the detection mechanisms, the environmental protection departments and the like can often perform emission detection on new production vehicles and in-use vehicles. In order to realize reliable connection between a vehicle and emission detection equipment, in the current technical scheme, various rubber hoses or steel pipes are usually used for manufacturing connecting pipes for connecting tail pipes of the vehicle. However, such rubber pipes or steel pipes are generally only suitable for automobile exhaust tail pipes with fixed diameters, and in order to match tail pipes with different specifications, a detection party generally needs to prepare various connecting pipes with different specifications. Even before detection, the adapter tube with the corresponding specification may need to be temporarily manufactured, so that the detection period is greatly increased, the detection equipment is occupied, and the detection cost is increased. Moreover, such adapters typically use interference connections or flange connections, which can be time consuming to install.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an automobile exhaust pipe connecting device with high adaptability so as to adapt to automobile exhaust tail pipes with different diameters and save time and labor in installation.

The invention is realized by the following technical scheme:

the utility model provides an automobile exhaust pipe connecting device with high adaptability, which comprises a pipe body, be provided with in the body inner chamber and press the pipe, press the whole cylindric that link up from top to bottom of pipe, press the pipe to enclose by the polylith arc clamp plate that distributes along circumference, arc clamp plate both ends distribute and are equipped with along the convex overlap joint step of circumference, be inside and outside mutual overlap joint's mode overlap joint cooperation through respective overlap joint step between two adjacent arc clamp plates, be equipped with elastomeric element between arc clamp plate lateral wall and the body inside wall, arc clamp plate can be along radial movement, it has the arc slot to open on the arc clamp plate, be provided with the metal elastic plate in the arc slot, the metal elastic plate bottom inserts to the arc slot of arc clamp plate, the metal elastic plate top stretches out the arc slot and is provided with the outside deflector that expands in top.

The pipe body inner chamber lower part is equipped with the lower limit bulge loop of inside protrusion, the body top is equipped with upper limit apron, upper limit apron and body fixed connection, and the upper and lower both ends of pressing the pipe are carried on spacingly respectively through upper limit apron and lower limit bulge loop, open at upper limit apron center has the perforation, and it has a plurality of grooves of dodging that are used for supplying a plurality of deflectors to upwards stretch out to open the perforation lateral wall.

The bottom of the pipe body is connected with a throttle valve body, a flow passage of the upper pipe body and the lower pipe body is arranged in the throttle valve body, the flow passage of the throttle valve body is communicated with the inner cavity of the pipe body, and a throttle valve is arranged on the throttle valve body.

And an overflow valve is arranged on the throttle valve body.

The elastic part is a spring, a plurality of springs are arranged between the outer side wall of each arc-shaped pressing plate and the inner side wall of the pipe body, and two ends of each spring are respectively connected with the outer side wall of each arc-shaped pressing plate and the inner side wall of the pipe body.

The lapping surface between two adjacent arc pressing plates is an arc surface.

The metal elastic plate is a spring steel plate.

The arc-shaped pressing plate is a rubber plate.

Compared with the prior art, the invention has the following advantages:

the invention provides a high-adaptability automobile exhaust pipe connecting device, which is characterized in that a pressure pipe is arranged in an inner cavity of a pipe body, the pressure pipe is surrounded by a plurality of arc-shaped pressure plates distributed along the circumferential direction, metal elastic plates are embedded in the arc-shaped pressure plates, and an elastic part is arranged between the outer side walls of the arc-shaped pressure plates and the inner side walls of the pipe body, so that the arc-shaped pressure plates can be elastically attached to the outer surface of an automobile exhaust tail pipe, the high-adaptability automobile exhaust tail pipe connecting device can adapt to automobile exhaust tail pipes with different diameters, is high in universality, does not need to produce pipe bodies with different specifications, and greatly reduces the cost. Meanwhile, the guide channel is formed by surrounding a plurality of guide plates, and the automobile tail pipe can be inserted from the guide channel during installation, so that the operation is convenient and rapid, and the time and the labor are saved. In addition, the sealing performance between the automobile tail pipe and the automobile tail pipe is good, and the environmental pollution caused by tail gas leakage is effectively prevented.

Drawings

Fig. 1 is a perspective view of a use state of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a front sectional view of the present invention.

Figure 4 is a cross-sectional view of the present invention.

Fig. 5 is a perspective view of the crimp portion of the present invention.

Fig. 6 is a perspective exploded view of the present invention.

Reference numbers in the figures: 1, a pipe body; 2, a throttle valve body; 3, arc-shaped pressing plates; 4, overlapping steps; 5, a spring; 6, arc-shaped slots; 7 a metal elastic plate; 8, a guide plate; 9 lower limit convex ring; 10, an upper limiting cover plate; 11, perforating; 12 avoidance slots; 13 a flow channel; 14 a throttle valve; 15 an overflow valve; 16 automobile exhaust pipe.

Detailed Description

The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.

Referring to fig. 1 to 6, the present embodiment discloses an automobile exhaust pipe connection device with high adaptability, which includes a pipe body 1 and a throttle body 2 connected up and down. Flanges are arranged at the upper end and the lower end of the pipe body 1 and the upper end and the lower end of the throttle valve body 2. The pipe body 1 and the throttle valve body 2 are fixedly connected through a bolt penetrating through the two flanges.

Be provided with in the 1 inner chamber of body and press the pipe, press the whole cylindric that link up from top to bottom of pipe, press the pipe to enclose by polylith arc clamp plate 3 along circumference distribution, arc clamp plate 3 is the rubber slab. The both ends of arc clamp plate 3 distribute and are equipped with along the convex overlap joint step 4 of circumference, are inside and outside mutual overlap joint mode overlap joint cooperation through respective overlap joint step 4 between two adjacent arc clamp plates 3, and the faying surface between two adjacent arc clamp plates 3 is the arcwall face. Be equipped with elastomeric element between 3 lateral walls of arc clamp plate and the 1 inside wall of body, elastomeric element is spring 5, is equipped with a plurality of springs 5 between 3 lateral walls of every arc clamp plate and the 1 inside wall of body, and the both ends of spring 5 are connected with 3 lateral walls of arc clamp plate and the 1 inside wall of body respectively. The arc-shaped pressing plate 3 can move along the radial direction, so that the contraction and expansion of the pressing pipe can be realized. Arc slot 6 is opened on the arc clamp plate 3, is provided with metal elastic plate 7 in the arc slot 6, and metal elastic plate 7 adopts spring steel plate. The bottom end of the metal elastic plate 7 is inserted into the arc-shaped slot 6 of the arc-shaped pressing plate 3, the top end of the metal elastic plate 7 extends out of the arc-shaped slot 6 and is provided with a guide plate 8 with the top end expanding outwards, and a guide channel is enclosed by the guide plates 8.

Wherein, 1 inner chamber lower part of body is equipped with inside convex lower limit bulge loop 9, and 1 top of body is equipped with upper limit cover plate 10, goes up through screw fixed connection between limit cover plate 10 and the flange of body 1 upper end, carries on spacingly to the upper and lower both ends of pressing the pipe respectively through upper limit cover plate 10 and lower limit bulge loop 9, and upper limit cover plate 10 center is opened has perforation 11, and perforation 11 lateral wall is opened has and is used for supplying a plurality of kickover grooves 12 that 8 upwards stretch out of deflector.

The throttle body 2 is internally provided with a flow passage 13 of the upper and lower pipe bodies 1, the flow passage 13 of the throttle body 2 is communicated with the inner cavity of the pipe body 1, and the throttle body 2 is provided with a throttle valve 14 and an overflow valve 15. The throttle valve 14 may be a butterfly valve. The throttle valve 14 is used for controlling the flow of the tail gas of the automobile, and after the test is finished, the throttle valve 14 is closed, so that the tail gas in the exhaust pipe connecting device is prevented from leaking to the atmosphere, and pollution and harm to the health of operators are avoided. When the throttle valve 14 cannot be opened or the flow of the automobile exhaust is too large, the overflow valve 15 can be opened to guide redundant exhaust to enter a gas purification system, so that the exhaust pipe connecting device is prevented from being damaged due to too large internal and external pressure difference, meanwhile, the exhaust leakage is reduced, and the pollution is prevented.

During operation, be connected throttle valve 2 lower extreme and tail gas check out test set's air inlet, insert automobile exhaust pipe 16 from body 1 upper end, with the 8 inboard back that contact of deflector on 7 tops of metal elastic plate, oppress metal elastic plate 7 and overcome spring 5 pressure respectively and radially outwards remove, metal elastic plate 7 drives arc clamp plate 3 and outwards removes together, until automobile exhaust pipe 16 inserts in the pressure tube that is enclosed by polylith arc clamp plate 3, reach the inner chamber bottom of

body

1, 16 terminal surfaces of automobile exhaust pipe will be spacing by the lower spacing bulge loop 9 of body 1 bottom, and form preliminary sealing to waste gas in the automobile exhaust pipe 16. The metal elastic plate 7 deforms under the action of the elastic force of the spring 5, and the arc-shaped pressing plate 3 is driven to be attached to the outer surface of the automobile exhaust pipe 16 so as to fix the automobile exhaust pipe 16 and form secondary sealing. In the process of connecting the automobile exhaust pipe 16, the arc-shaped pressing plate 3, the metal elastic plate 7 and the spring 5 can deform to ensure that the arc-shaped pressing plate 3 is attached to the outer surface of the automobile exhaust pipe 16, so that the automobile exhaust pipe connecting device can be suitable for automobile exhaust pipes 16 with different diameters, and is strong in universality. Meanwhile, when the automobile exhaust pipe 16 is connected, the automobile exhaust pipe 16 only needs to be inserted into the guide channel of the sheet metal elastic plate 7, and the operation is convenient and quick.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an automobile exhaust pipe connecting device with high adaptability which characterized in that: including the body, be provided with in the body inner chamber and press the pipe, press the whole cylindric that link up from top to bottom of pipe, press the pipe to enclose by the polylith arc clamp plate that distributes along circumference, arc clamp plate both ends distribute and are equipped with along the convex overlap joint step of circumference, be inside and outside mutual overlap joint's mode overlap joint cooperation through respective overlap joint step between two adjacent arc clamp plates, be equipped with elastomeric element between arc clamp plate lateral wall and the body inside wall, arc clamp plate can be along radial movement, it has the arc slot to open on the arc clamp plate, be provided with the metal elastic plate in the arc slot, the metal elastic plate bottom inserts to the arc slot of arc clamp plate, the metal elastic plate top stretches out the arc slot and is provided with the deflector of the outside expansion in top.

2. An exhaust pipe connecting device for vehicle with high adaptability according to claim 1, characterized in that: the pipe body inner chamber lower part is equipped with the lower limit bulge loop of inside protrusion, the body top is equipped with upper limit apron, upper limit apron and body fixed connection, and the upper and lower both ends of pressing the pipe are carried on spacingly respectively through upper limit apron and lower limit bulge loop, open at upper limit apron center has the perforation, and it has a plurality of grooves of dodging that are used for supplying a plurality of deflectors to upwards stretch out to open the perforation lateral wall.

3. An exhaust pipe connecting device for vehicle with high adaptability according to claim 1, characterized in that: the bottom of the pipe body is connected with a throttle valve body, a flow passage of the upper pipe body and the lower pipe body is arranged in the throttle valve body, the flow passage of the throttle valve body is communicated with the inner cavity of the pipe body, and a throttle valve is arranged on the throttle valve body.

4. An exhaust pipe connecting device for vehicle with high adaptability according to claim 3, wherein: and an overflow valve is arranged on the throttle valve body.

5. An exhaust pipe connecting device for vehicle with high adaptability according to claim 1, characterized in that: the elastic part is a spring, a plurality of springs are arranged between the outer side wall of each arc-shaped pressing plate and the inner side wall of the pipe body, and two ends of each spring are respectively connected with the outer side wall of each arc-shaped pressing plate and the inner side wall of the pipe body.

6. An exhaust pipe connecting device for vehicle with high adaptability according to claim 1, characterized in that: the lapping surface between two adjacent arc pressing plates is an arc surface.

7. An exhaust pipe connecting device for vehicle with high adaptability according to claim 1, characterized in that: the metal elastic plate is a spring steel plate.

8. An exhaust pipe connecting device for vehicle with high adaptability according to claim 1, characterized in that: the arc-shaped pressing plate is a rubber plate.