阅读说明：本技术 一种具有防水干燥结构的发动机排气管 (Engine exhaust pipe with waterproof drying structure ) 是由 李建辉 于 2021-09-03 设计创作，主要内容包括：本发明公开了一种具有防水干燥结构的发动机排气管,包括气筒,其端部贯穿安装有用于输入发动机废气的输气管,所述输气管的边侧设置有用于排出所述气筒内废气的进气管,且进气管固定贯穿与所述气筒设置；球壳,其与所述进气管端部之间连接的导气管实现了两者内部的连通,所述球壳的底部固定连通有主排气管的一端,且主排气管的另一端内壁上固定连接有用于阻挡外界的杂物的筛板；气压筒,其下端口固定连通在所述球壳的顶部,所述气压筒的上端口处同轴焊接有副排气管。该具有防水干燥结构的发动机排气管,其设置有降噪消音结构,装置使用过程中,产生的噪音较小,且装置的防水性能更好,当汽车涉水时,排气管内不容易进水。(The invention discloses an engine exhaust pipe with a waterproof and dry structure, which comprises an air cylinder, wherein the end part of the air cylinder is provided with an air delivery pipe for inputting exhaust gas of an engine in a penetrating way, the side of the air delivery pipe is provided with an air inlet pipe for discharging the exhaust gas in the air cylinder, and the air inlet pipe is fixedly arranged in a penetrating way and arranged with the air cylinder; the bottom of the spherical shell is fixedly communicated with one end of a main exhaust pipe, and a sieve plate for blocking outside impurities is fixedly connected to the inner wall of the other end of the main exhaust pipe; and the lower port of the pneumatic cylinder is fixedly communicated with the top of the spherical shell, and the upper port of the pneumatic cylinder is coaxially welded with an auxiliary exhaust pipe. This engine blast pipe with waterproof drying structure, it is provided with and falls the amortization structure of making an uproar, and in the device use, the noise of production is less, and the waterproof performance of device is better, when the car wades into water, is difficult to intake in the blast pipe.)

1. An engine exhaust pipe having a waterproof dry structure, comprising:

the end part of the air cylinder is provided with an air pipe for inputting the waste gas of the engine in a penetrating way, the side of the air pipe is provided with an air inlet pipe for discharging the waste gas in the air cylinder, and the air inlet pipe is fixedly arranged in a penetrating way with the air cylinder;

the bottom of the spherical shell is fixedly communicated with one end of a main exhaust pipe, and a sieve plate for blocking outside impurities is fixedly connected to the inner wall of the other end of the main exhaust pipe;

the lower port of the pneumatic cylinder is fixedly communicated with the top of the spherical shell, the upper port of the pneumatic cylinder is coaxially welded with an auxiliary exhaust pipe, the outer wall of the pneumatic cylinder is welded with a fixed support, and the fixed support is fixedly provided with a motor.

2. The engine exhaust pipe having a waterproof dry structure according to claim 1, characterized in that: 2 acoustical boards of fixedly connected with on the inner wall of inflator, and set up the effect that hexagonal through-hole played the improvement device noise cancelling effect on the acoustical board to link up on the acoustical board and be provided with gas-supply pipe and intake pipe, gas pocket that angular distribution such as seted up on the lateral wall that gas-supply pipe and intake pipe lie in between 2 acoustical boards moreover.

3. The engine exhaust pipe having a waterproof dry structure according to claim 1, characterized in that: 2 guide pillars are symmetrically arranged on the side wall of the main exhaust pipe, a pressure sensor is arranged on the upper portion of the side wall of each guide pillar, and a supporting plate used for supporting the floating ring is vertically arranged on the lower portion of the side wall of each guide pillar.

4. The engine exhaust pipe having a waterproof dry structure according to claim 3, characterized in that: the cross section of the guide post is of a T-shaped structure, the guide post is horizontally provided with a floating ring, the floating ring and the floating ring form a sliding lifting structure, and the bottom surface of the floating ring is attached to the upper surface of the supporting plate.

5. The engine exhaust pipe having a waterproof dry structure according to claim 1, characterized in that: the inner wall of the spherical shell is provided with a rotating ball in a fitting manner, the rotating ball is provided with a communicating hole in a penetrating manner, the diameter of the communicating hole is equal to the inner diameter of the air guide pipe and the inner diameter of the main exhaust pipe, and the communicating hole, the air guide pipe and the main exhaust pipe jointly form an exhaust passage of the device.

6. The engine exhaust pipe having a waterproof dry structure according to claim 5, characterized in that: the axes of the communicating hole and the cross rod pass through the sphere center of the rotating ball, one end of the cross rod is fixedly installed on the outer wall of the rotating ball, and the other end of the cross rod is installed on an output shaft of the motor through a fastening bolt.

7. The engine exhaust pipe having a waterproof dry structure according to claim 1, characterized in that: a sealing ball is arranged on the inner wall of the top of the auxiliary exhaust pipe in a fitting mode, the sealing ball is fixedly installed at the end portion of the inner rod, and the inner rod is inserted into the inner side of the outer barrel in a sliding mode.

8. The engine exhaust pipe having a waterproof dry structure according to claim 7, characterized in that: the center of the sealing ball is located on the axes of the auxiliary exhaust pipe and the inner rod, a spring used for providing pressure is connected between the end of the inner rod and the inner wall of the outer barrel, and the outer barrel is vertically connected to the outer wall of the fixing support.

Technical Field

The invention relates to the technical field of engine exhaust pipes, in particular to an engine exhaust pipe with a waterproof and dry structure.

Background

Need in the engine operation process with petrol and air mixed combustion, this in-process can produce a large amount of waste gas, and waste gas passes through the blast pipe and arranges in the external environment, however current engine exhaust pipe still has some problems:

such as a filtered engine exhaust pipe with a seal of publication No. CN 212250201U. The technical scheme of the utility model is that: the engine exhaust pipe, the filter and the sealing element are arranged, and an exhaust hole, two fixing holes, two positioning holes and a sealing gasket … … are further arranged in the middle of the sealing element. It does not set up the amortization structure of making an uproar that falls, in the device use, can produce great noise, and the waterproof performance of device is relatively poor, when the car wades into water, intakes easily in the blast pipe.

In order to solve the problems, innovative design is urgently needed on the basis of the original engine exhaust pipe.

Disclosure of Invention

The invention aims to provide an engine exhaust pipe with a waterproof and dry structure, which aims to solve the problems that the existing engine exhaust pipe is not provided with a noise reduction and silencing structure, the device can generate larger noise in the using process, the waterproof performance of the device is poor, and water is easy to enter the exhaust pipe when an automobile wades.

In order to achieve the purpose, the invention provides the following technical scheme: an engine exhaust pipe having a waterproof dry structure, comprising:

the end part of the air cylinder is provided with an air pipe for inputting the waste gas of the engine in a penetrating way, the side of the air pipe is provided with an air inlet pipe for discharging the waste gas in the air cylinder, and the air inlet pipe is fixedly arranged in a penetrating way with the air cylinder;

the bottom of the spherical shell is fixedly communicated with one end of a main exhaust pipe, and a sieve plate for blocking outside impurities is fixedly connected to the inner wall of the other end of the main exhaust pipe;

the lower port of the pneumatic cylinder is fixedly communicated with the top of the spherical shell, the upper port of the pneumatic cylinder is coaxially welded with an auxiliary exhaust pipe, the outer wall of the pneumatic cylinder is welded with a fixed support, and the fixed support is fixedly provided with a motor.

Preferably, 2 acoustical boards of fixedly connected with on the inner wall of inflator, and seted up hexagonal through-hole on the acoustical board and played the effect that improves the device noise cancelling effect to link up on the acoustical board and be provided with gas-supply pipe and intake pipe, gas pocket that angular distribution such as seted up on the lateral wall that gas-supply pipe and intake pipe lie in between 2 acoustical boards moreover constitutes the structure of making an uproar that falls of device.

Preferably, 2 guide pillars are symmetrically installed on the side wall of the main exhaust pipe, a pressure sensor is installed on the upper portion of the side wall of each guide pillar, and a support plate for supporting the floating ring is vertically installed on the lower portion of the side wall of each guide pillar to prevent the floating ring from being separated from the guide pillars.

Preferably, the cross section of the guide post is of a T-shaped structure, the guide post is horizontally provided with a floating ring, the floating ring and the guide post form a sliding lifting structure, and the bottom surface of the floating ring is attached to the upper surface of the supporting plate, so that the floating ring can move on the guide post.

Preferably, the inner wall of the spherical shell is provided with a rotating ball in a fitting manner, the rotating ball is provided with a communicating hole in a penetrating manner, the diameter of the communicating hole is equal to the inner diameters of the air guide pipe and the main exhaust pipe, and the communicating hole, the air guide pipe and the main exhaust pipe jointly form an exhaust passage of the device to form an exhaust gas conveying structure.

Preferably, the axes of the communication hole and the cross bar pass through the sphere center of the rotating ball, one end of the cross bar is fixedly mounted on the outer wall of the rotating ball, and the other end of the cross bar is mounted on an output shaft of the motor through a fastening bolt, so that the cross bar can drive the rotating ball to rotate.

Preferably, a sealing ball is attached to the inner wall of the top of the auxiliary exhaust pipe and fixedly mounted at the end of the inner rod, and the inner rod is slidably inserted into the inner side of the outer cylinder, so that the inner rod can drive the sealing ball to move.

Preferably, the center of the sealing ball is located on the axes of the auxiliary exhaust pipe and the inner rod, a spring used for providing pressure is connected between the end of the inner rod and the inner wall of the outer cylinder, and the outer cylinder is vertically connected to the outer wall of the fixed support, so that the inner rod can be driven by the spring to move.

Compared with the prior art, the invention has the beneficial effects that: the engine exhaust pipe with the waterproof and dry structure is provided with the noise reduction and silencing structure, so that noise generated in the use process of the device is small, the waterproof performance of the device is better, and water is not easy to enter the exhaust pipe when an automobile wades;

1. 2 acoustical boards of fixedly connected with on the inner wall of inflator, and seted up hexagonal through-hole on the acoustical board to improve the noise cancelling effect of acoustical board, gas-supply pipe and intake pipe are located and offer the gas pocket of angular distribution such as on the lateral wall between 2 acoustical boards, utilize the gas pocket to derive the air current reposition of redundant personnel in the gas-supply pipe, make the stranded air current strike each other, thereby reduce the gas flow rate, further improve the noise reduction effect of device.

2. 2 guide pillars are symmetrically installed on the side wall of the main exhaust pipe, a pressure sensor is installed on the upper portion of the side wall of each guide pillar, a floating ring is installed on each guide pillar, the floating ring and the floating ring form a sliding lifting structure, the floating ring is located under the pressure sensor, when an automobile wades, the floating ring floats on the water surface, the floating ring moves upwards along with the water level at the moment, when the floating ring is in contact with the pressure sensor, the pressure sensor drives a cross rod to rotate through a motor, the cross rod drives a rotating ball to rotate synchronously, the main exhaust pipe is blocked by the rotating ball, and therefore water is prevented from entering the device.

Drawings

FIG. 1 is a schematic view of the overall external structure of the present invention;

FIG. 2 is a schematic view of the airway tube mounting arrangement of the present invention;

FIG. 3 is a schematic view of the acoustical panel mounting structure of the present invention;

FIG. 4 is a schematic view showing an installation structure of a gas pipe according to the present invention;

FIG. 5 is a schematic view of the mounting structure of the air cylinder according to the present invention;

FIG. 6 is a schematic view of a guide post mounting structure of the present invention;

FIG. 7 is a schematic view of a ball mounting arrangement of the present invention;

fig. 8 is a schematic view of a sealing ball mounting structure according to the present invention.

In the figure: 1. an air cylinder; 2. a gas delivery pipe; 3. a sound-absorbing panel; 4. an air inlet pipe; 5. an air duct; 6. a spherical shell; 7. a main exhaust pipe; 8. a guide post; 9. a pressure sensor; 10. a floating ring; 11. a support plate; 12. a sieve plate; 13. rotating the ball; 14. a communicating hole; 15. a cross bar; 16. a motor; 17. fixing a bracket; 18. an air pressure cylinder; 19. a secondary exhaust pipe; 20. a sealing ball; 21. an inner rod; 22. an outer cylinder; 23. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: an engine exhaust pipe having a waterproof dry structure, comprising:

the end part of the air cylinder 1 is provided with an air delivery pipe 2 for inputting the waste gas of the engine in a penetrating way, the side of the air delivery pipe 2 is provided with an air inlet pipe 4 for discharging the waste gas in the air cylinder 1, and the air inlet pipe 4 is fixedly arranged in a penetrating way with the air cylinder 1;

the spherical shell 6 is communicated with the air guide pipe 5 connected between the end parts of the air inlet pipe 4, the bottom of the spherical shell 6 is fixedly communicated with one end of a main exhaust pipe 7, and the inner wall of the other end of the main exhaust pipe 7 is fixedly connected with a sieve plate 12 for blocking outside impurities;

the lower port of the pneumatic cylinder 18 is fixedly communicated with the top of the spherical shell 6, the upper port of the pneumatic cylinder 18 is coaxially welded with an auxiliary exhaust pipe 19, the outer wall of the pneumatic cylinder 18 is welded with a fixed support 17, and the fixed support 17 is fixedly provided with a motor 16.

2 acoustical panel 3 of fixedly connected with on the inner wall of inflator 1, and set up hexagonal through-hole on the acoustical panel 3 and play the effect that improves device noise cancelling effect, and link up on the acoustical panel 3 and be provided with gas-supply pipe 2 and intake pipe 4, and gas-supply pipe 2 and intake pipe 4 are located 2 lateral walls between the acoustical panel 3 and set up the gas pocket of waiting angular distribution, waste gas gets into in the gas-supply pipe 2, waste gas gets into in the inflator 1 after being shunted by the gas pocket on the gas-supply pipe 2, stranded waste gas air current strikes each other, make the air current velocity of flow slow down reach the effect of making an uproar, set up the sound wave that produces in the hexagonal through-hole can the effective absorption inflator 1 on the acoustical panel 3 simultaneously, further improve device's the noise cancelling effect.

2 guide posts 8 are symmetrically arranged on the side wall of the main exhaust pipe 7, a pressure sensor 9 is arranged on the upper portion of the side wall of each guide post 8, a support plate 11 for supporting a floating ring 10 is vertically arranged on the lower portion of the side wall of each guide post 8, the cross section of each guide post 8 is of a T-shaped structure, the floating rings 10 are horizontally arranged on the guide posts 8 to form a sliding lifting structure, the bottom surfaces of the floating rings 10 are attached to the upper surface of the support plate 11, a rotating ball 13 is attached to the inner wall of the ball shell 6, a communication hole 14 is formed in the rotating ball 13 in a penetrating mode, the diameter of the communication hole 14 is equal to the inner diameter of the air guide pipe 5 and the inner diameter of the main exhaust pipe 7, the communication hole 14, the air guide pipe 5 and the main exhaust pipe 7 jointly form an exhaust passage of the device, the axes of the communication hole 14 and the cross rod 15 pass through the center of the rotating ball 13, and one end of the cross rod 15 is fixedly arranged on the outer wall of the rotating ball 13, and the other end of horizontal pole 15 passes through fastening bolt and installs on the output shaft of motor 16, and when the car wades, the water can promote the floating ring 10 along guide pillar 8 rebound for floating ring 10 and pressure sensors 3 contact, and pressure sensors 3 sends the start signal to motor 16 this moment, and motor 16 drives horizontal pole 15 and rotates, makes the rolling ball 13 synchronous rotation of horizontal pole 15 tip, with the direction that changes intercommunicating pore 14, reaches the effect of switching exhaust duct.

A sealing ball 20 is attached to the inner wall of the top of the auxiliary exhaust pipe 19, the sealing ball 20 is fixedly mounted at the end of an inner rod 21, the inner rod 21 is slidably inserted into an inner side of an outer cylinder 22, the center of the sealing ball 20 is on the axis of the auxiliary exhaust pipe 19 and the inner rod 21, a spring 23 for providing pressure is connected between the end of the inner rod 21 and the inner wall of the outer cylinder 22, the outer cylinder 22 is vertically connected to the outer wall of the fixed support 17, when the pressure inside the auxiliary exhaust pipe 19 rises, the pressure difference inside and outside the auxiliary exhaust pipe 19 increases continuously, when the pressure difference reaches a certain magnitude, high-pressure gas can push the sealing ball 20 to move upwards, the sealing ball 20 drives the inner rod 21 to compress the spring 23, so that the sealing ball 20 is separated from the auxiliary exhaust pipe 19, at the moment, the high-pressure gas is sprayed out from the gap between the auxiliary exhaust pipe 19 and the sealing ball 20, when the pressure inside the auxiliary exhaust pipe 19 decreases, the spring 23 can push the inner rod 21 and the sealing ball 20 downward by a return action so that the sealing ball 20 closes off the port of the secondary exhaust pipe 19 again.

The working principle is as follows: when the engine exhaust pipe with the waterproof and dry structure is used, firstly, referring to fig. 1-8, waste gas generated by an engine enters the gas conveying pipe 2, the waste gas is divided by the gas holes on the gas conveying pipe 2 and then enters the gas cylinder 1, a plurality of waste gas flows impact each other, the flow velocity of the gas flows is reduced to achieve the noise reduction effect, meanwhile, the sound wave generated in the gas cylinder 1 can be effectively absorbed by the sound-absorbing plate 3 through the hexagonal through holes formed in the sound-absorbing plate, the noise reduction effect of the device is further improved, the gas in the gas collecting cylinder 1 enters the gas inlet pipe 4 through the gas holes in the gas inlet pipe 4, the waste gas in the gas inlet pipe 4 is discharged to the external environment through the gas guide pipe 5, the communication hole 14 and the main exhaust pipe 7 in sequence, and the sieve plate 12 arranged at the port of the main exhaust pipe 7 can prevent external impurities from entering the device;

referring to fig. 1-8, when an automobile wades, a floating ring 10 floats on the water surface, a water body pushes the floating ring 10 to move upwards along a guide post 8 along with the rising of the water level, when the floating ring 10 is in contact with a pressure sensor 9, the pressure sensor 9 sends a starting signal to a motor 16, the motor 16 drives a rotating ball 13 to rotate forwards by 90 degrees through a cross rod 15, a communicating hole 14 formed in the rotating ball 13 rotates synchronously, so that a new waste gas discharge passage is formed by a gas guide pipe 5, the communicating hole 14, a gas cylinder 18 and an auxiliary gas exhaust pipe 19, the rotating ball 13 seals an upper port of the main gas exhaust pipe 7 at the moment, the water body cannot fall into the device through the main gas exhaust pipe 7, as the auxiliary gas exhaust pipe 19 connected to the top of the gas cylinder 18 is sealed by a sealing ball 20, the steps can be known that the gas pressure in the gas cylinder 18 and the auxiliary gas exhaust pipe 19 will rise along with the continuous generation of waste gas, and when the waste gas pressure of the auxiliary gas exhaust pipe 19 reaches a set value, high-pressure gas promotes ball sealer 20 and upwards removes under the effect of the pressure difference inside and outside vice blast pipe 19, ball sealer 20 drives interior pole 21 and moves to the inside of urceolus 22, interior pole 21 compresses spring 23, form the space between ball sealer 20 and the tip inner wall of vice blast pipe 19, high-pressure waste gas spouts fast from the space this moment, high-pressure gas that high-speed flow can prevent external water and get into vice blast pipe 19 through the space, behind the vice blast pipe 19 exhaust waste gas, the inside pressure of vice blast pipe 19 reduces gradually, spring 23 can promote interior pole 21 downwards through reset action this moment, it is sealed to make interior pole 21 drive the laminating of ball sealer 20 and the top port of vice blast pipe 19, prevent that external water from falling into the device.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.