CN211474218U

CN211474218U - Automobile exhaust pipe protection device

Info

Publication number: CN211474218U
Application number: CN201921922733.5U
Authority: CN
Inventors: 沈晔斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-09-11
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses an automobile exhaust pipe protection device, relating to the technical field of automobile exhaust pipes; including automobile exhaust pipe and cup joint on automobile exhaust pipe and hollow protective sleeve, set up the gas vent rather than the inner chamber intercommunication on the protective sleeve, input, the gas vent and the external environment formation exhaust flow field of protective sleeve, install the check valve that supplies automobile exhaust to discharge external environment in the exhaust flow field. A protective pipe with a one-way valve is externally connected to a traditional automobile exhaust pipe, so that fluid in the exhaust pipe only moves in a one-way mode, and external fluid is prevented from entering the exhaust pipe while exhaust is conducted.

Description

Automobile exhaust pipe protection device

Technical Field

The utility model relates to an automobile exhaust pipe technical field, in particular to automobile exhaust pipe protector.

Background

Due to the urbanization development, the problem of urban surface water infiltration is serious, and the problem of serious urban waterlogging is easy to occur in heavy rainfall weather, so that certain property and personnel loss is caused. Wherein the car wades into water often can lead to the vehicle to damage because of the blast pipe is intake in ponding, and the economic loss who causes is also huge.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automobile exhaust pipe protector.

The technical scheme of the utility model: the utility model provides an automobile exhaust pipe protector, includes automobile exhaust pipe and cup joints on automobile exhaust pipe and hollow protective sleeve, set up the gas vent rather than the inner chamber intercommunication on the protective sleeve, input, the gas vent and the external environment formation exhaust flow field of protective sleeve, install the check valve that supplies automobile exhaust to discharge external environment in the exhaust flow field.

In the automobile exhaust pipe protection device, the joint of the automobile exhaust pipe and the protection sleeve is sleeved with the sealing ring.

In the automobile exhaust pipe protection device, the sealing ring is sleeved with the rubber sleeve, the rubber sleeve extends to two ends of the sealing ring, and the outer edge of the rubber sleeve is sleeved with the metal hoop.

In the foregoing device for protecting an automobile exhaust pipe, the check valve is fixedly installed at the inner edge of the exhaust port.

In the protection device for the automobile exhaust pipe, the check valve comprises a valve core support arranged on the inner edge of the exhaust port, the outer edge of the valve core support is fixedly connected with a reinforcing rib, the reinforcing rib is fixed on the inner edge of the exhaust port, a section of sealed valve body extends inwards from the inner edge of the exhaust port, a spring sleeve is fixedly installed on the inner end face of the valve core support, a support rod is connected in the spring sleeve in a sliding mode, the rear end of the support rod is connected with a spring, a valve core is fixedly connected to the front end of the support rod, a gasket is fixedly installed on the inner side of the valve body, the valve core is limited to slide between the gasket and the spring sleeve, the check valve keeps in a closed state when the valve core abuts against the gasket, and the check valve.

In the automobile exhaust pipe protection device, the side surface of the valve core is provided with an inclined edge, and the cross section of the gasket is of a triangular structure.

In the foregoing device for protecting an exhaust pipe of an automobile, two or more exhaust ports are provided.

In the above protection device for the automobile exhaust pipe, the input end of the protection sleeve is of an outward bell-mouth-shaped structure.

In the automobile exhaust pipe protection device, the tail end of the protection sleeve is connected with the pressure release cavity, and the pressure release cavity is provided with the pressure release valve.

In the automobile exhaust pipe protection device, the outer edge of the exhaust port is covered with the filter screen for placing sundries in water into the one-way valve.

The utility model has the advantages that: a protective pipe with a one-way valve is externally connected to a traditional automobile exhaust pipe, so that fluid in the exhaust pipe only moves in a one-way mode, and external fluid is prevented from entering the exhaust pipe while exhaust is conducted.

Drawings

FIG. 1 is a general schematic view of the present invention;

fig. 2 is a schematic view of the inner structure of the protective sleeve of the present invention;

fig. 3 is a schematic structural view of the check valve of the present invention.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Example (b): an automobile exhaust pipe protection device comprises an automobile exhaust pipe and a hollow protection sleeve sleeved on the automobile exhaust pipe, wherein an exhaust port communicated with an inner cavity of the protection sleeve is formed in the protection sleeve; referring to fig. 1, at least two exhaust ports 8 are provided; mainly to increase the fault tolerance of the device.

The air outlet 8 is covered with a filter screen for preventing impurities in water from entering the protective sleeve 6.

The connection structure of the protective sleeve 6 and the automobile exhaust pipe refers to fig. 1: a sealing ring is sleeved at the joint of the automobile tail gas pipe and the protective sleeve, namely, the input end of the protective sleeve 6 is butted with the output end of the automobile tail gas pipe 1 in the sealing ring 2; the sealing ring is sleeved with a rubber sleeve, the rubber sleeve extends towards two ends of the sealing ring, the outer edge of the rubber sleeve is sleeved with a metal hoop, the structure of the metal hoop 4 is shown in the figure, when the metal hoop is fixed, a bolt at the top of the metal hoop is screwed, the rubber sleeve 3 can be bound, and the sealing performance of the connection of the automobile exhaust pipe 3 and the protective sleeve 6 is ensured under the dual constraint of the rubber sleeve 3 and the sealing ring 2.

A check valve 9 is arranged on the inner edge of the exhaust port 8, and the specific structure of the check valve is shown in figure 3;

the check valve comprises a valve core bracket arranged at the inner edge of the exhaust port, the outer edge of the valve core bracket is fixedly connected with a reinforcing rib, and the reinforcing rib is fixed on the inner edge of the exhaust port;

a section of sealed valve body extends inwards from the inner edge of the exhaust port, a spring sleeve is fixedly installed on the inner end face of the valve core support, a supporting rod is connected in the spring sleeve in a sliding mode, the rear end of the supporting rod is connected with a spring, and the front end of the supporting rod is fixedly connected with a valve core; taking fig. 3 as an example, the valve core has a structure with a wide upper part and a narrow lower part, and is provided with an inclined edge on the side surface;

a gasket is fixedly arranged on the inner side of the valve body, and the section of the gasket is of a triangular structure;

referring to fig. 3, when the gasket 94 is stressed, the inclined edge 95 of the valve core 92 presses the tip of the gasket 94 downwards, and the triangular tip of the gasket 94 is thinner, so that the gasket is easier to extrude and forms a sealing surface with the inclined edge 95. When the valve core 92 moves upwards, the deformation process of the gasket 94 is just the process of recovering, so that the valve is labor-saving and meets the design of a one-way valve. And is more stable and has less friction.

The valve core is limited between the washer and the spring sleeve to slide, when the valve core is abutted to the washer, the one-way valve keeps a closed state, and when the valve core is separated from the washer, the one-way valve keeps an open state;

in addition, referring to fig. 2, the input end, i.e. the head end, of the protective casing 6 is provided with a bell-mouth-shaped gas inlet structure, which is beneficial to maintaining the stability of a gas flow field and increasing the pressure during gas inlet.

Referring to fig. 1, a pressure release chamber is connected to the end of the protective casing 6, and a pressure release valve 11 is installed in the pressure release chamber, where the pressure release valve 11 is a commercially available product (the model can be referred to as YQ 20002). When the protective sleeve 6 breaks down and normal exhaust cannot be performed, the internal air pressure is increased, and when the internal air pressure is increased to a critical value, the load of the automobile engine is increased, so that explosion can be generated. The pressure release chamber 10 and the pressure release valve 11 are added to solve the problem, and the pressure release value of the pressure release valve 11 is adjusted to be lower than a safety value (which may be determined according to the type of the engine and the pressure of the protecting casing material), and when the pressure release value is higher than the safety value, the pressure is automatically released.

The concrete during operation:

referring to fig. 1 and 2, under normal conditions, the check valve 9 is in a closed state, taking fig. 2 as an example, when exhaust gas is discharged from the automobile exhaust pipe and enters the protection pipe sleeve 6, the valve core 92 in the check valve 9 is pushed, and when the valve core 92 is separated from the gasket 94, the exhaust gas is discharged from the exhaust port 8;

the process is a rapid process, the air pressure in the protective sleeve 6 is gradually reduced during exhaust emission, and when the external water pressure and the elastic force of the spring are greater than the air pressure, the valve core 92 rapidly returns to the state of sealing the gasket 94. Preventing external water from entering the protective tube sheath 6. The intermittent exhaust is carried out in such a circulating way (the intermittent exhaust is the same as the normal automobile exhaust).

Claims

1. The utility model provides an automobile exhaust pipe protector which characterized in that: including automobile exhaust pipe (1) and cup joint on automobile exhaust pipe (1) and hollow protective casing (6), set up gas vent (8) rather than the inner chamber intercommunication on protective casing (6), input, gas vent (8) and the external environment of protective casing (6) form exhaust flow field, install check valve (9) that supply automobile exhaust external environment in the exhaust flow field.

2. The automobile exhaust pipe protective device according to claim 1, characterized in that: and a sealing ring (2) is sleeved at the joint of the automobile tail gas pipe (1) and the protective sleeve (6).

3. The automobile exhaust pipe protection device according to claim 2, characterized in that: the sealing washer (2) overcoat has cup jointed rubber sleeve (3), rubber sleeve (3) extend to the both ends of sealing washer (2), metal clamp (4) have been cup jointed to the outer fringe of rubber sleeve (3).

4. The automobile exhaust pipe protective device according to any one of claims 1 to 3, characterized in that: the check valve (9) is fixedly arranged on the inner edge of the exhaust port (8).

5. The vehicle vent-pipe protection device of claim 4, wherein: the check valve (9) comprises a valve core support (5) arranged on the inner edge of the exhaust port (8), the outer edge of the valve core support (5) is fixedly connected with a reinforcing rib (7), the reinforcing rib (7) is fixed on the inner edge of the exhaust port (8), a section of sealed valve body (91) extends inwards from the inner edge of the exhaust port (8), a spring sleeve (97) is fixedly arranged on the inner end face of the valve core support (5), a support rod (93) is connected in the spring sleeve (97) in a sliding manner, the rear end of the support rod (93) is connected with a spring (96), the front end of the support rod (93) is fixedly connected with the valve core (92), a gasket (94) is fixedly arranged on the inner side of the valve body (91), the valve core (92) is limited to slide between the gasket (94) and the spring sleeve (97), and the check valve (9) keeps a closed state when the valve core (92, the check valve (9) is maintained in an open state when the spool (92) is separated from the gasket (94).

6. The automobile exhaust pipe protection device according to claim 5, characterized in that: the side surface of the valve core (92) is provided with an inclined edge (95), and the section of the gasket (94) is of a triangular structure.

7. The vehicle tailpipe protector according to claim 6, wherein: the exhaust ports (8) are more than two.

8. The vehicle tailpipe protector according to claim 7, wherein: the input end of the protective sleeve (6) is of an outward horn mouth-shaped structure.

9. The vehicle tailpipe protector according to claim 8, wherein: the tail end of the protective sleeve (6) is connected with a pressure release cavity (10), and the pressure release cavity (10) is provided with a pressure release valve (11).

10. The vehicle tailpipe protecting apparatus according to claim 9, wherein: the outer edge of the exhaust port (8) is covered with a filter screen.