CN214007282U - A waterproof construction for vehicle vent-pipe - Google Patents

Abstract

The application discloses a waterproof construction for vehicle vent-pipe, wherein the connecting piece cover is established and is installed in the blast pipe, sleeve one end is connected with the connecting piece, the built-in fender that separates that is equipped with of sleeve, it has the water conservancy diversion hole to separate the fender, waterproof seal assembly installs in the sleeve, support piece installs in telescopic internal face along being on a parallel with telescopic axial, waterproof sealing member is connected with support piece, the link member is connected with support piece, the driving piece is connected with the link member, wherein, the driving piece configuration is taken the motion of movable link member so that support piece rotates and drives waterproof seal assembly along support piece motion, thereby make waterproof seal assembly have with separate the fender butt with the first state in sealed water conservancy diversion hole and have with separate the second state in order to switch on the water conservancy diversion hole of fender interval, waterproof seal assembly can switch between first state and second state. The waterproof structure can effectively prevent rainwater from flowing into the automobile from the exhaust pipe.

Description

A waterproof construction for vehicle vent-pipe

Technical Field

The application relates to the technical field of auto parts, especially, relate to a waterproof construction for vehicle vent-pipe.

Background

Most city sewer engineering of our country is still imperfect, multichannel section ponding etc. when leading to heavy rain weather, although most automobile chassis all done sealed processing, but current blast pipe prevents flowing backward because of special reason is sealed not possible, and when heavy rain weather leads to ponding more, ponding enters into inside the blast pipe easily to lead to the unable normal use of automobile parts (like the engine).

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a waterproof construction for vehicle vent-pipe, it can avoid ponding to flow backward to in the blast pipe effectively.

In a first aspect, an embodiment of the present application provides a waterproof structure for an automobile exhaust pipe; the waterproof structure comprises a connecting piece, a sleeve, a waterproof sealing assembly, a supporting piece, a linkage piece and a driving piece, wherein the connecting piece is sleeved on the exhaust pipe, one end of the sleeve is connected with the connecting piece, a baffle is arranged in the sleeve, the baffle is provided with a flow guide hole, the waterproof sealing assembly is arranged in the sleeve, the supporting piece is arranged on the inner wall surface of the sleeve along the axial direction parallel to the sleeve, the waterproof sealing piece is connected with the supporting piece, the linkage piece is connected with the supporting piece, the driving piece is connected with the linkage piece, wherein the driving piece is configured to move with the linkage piece so that the supporting piece rotates to drive the waterproof sealing assembly to move along the supporting piece, the waterproof sealing assembly is enabled to have a first state abutting against the baffle to seal the flow guide hole and a second state spaced from the baffle to conduct the flow guide hole, and the waterproof sealing assembly can be.

In some embodiments, the connection member includes a connection ring and a screw, the connection ring is sleeved on the exhaust pipe, the connection ring has a connection groove, a groove side wall of the connection groove is provided with an internal thread, a groove bottom wall of the connection groove is provided with a first waterproof sealing ring, the connection ring further has a threaded hole extending along a radial direction of the connection ring, and the screw penetrates through the threaded hole and abuts against the exhaust pipe to achieve relative fixing of the position between the connection ring and the exhaust pipe.

In some embodiments, the connecting member further includes a second waterproof sealing ring disposed on the inner annular surface of the connecting ring, and after the connecting ring is sleeved on the exhaust pipe, a waterproof sealant is filled between the inner annular surface and the outer wall surface of the exhaust pipe.

In some of these embodiments, the sleeve includes first linkage segment, second linkage segment and third linkage segment, and the outer wall of first linkage segment is provided with the external screw thread with the internal thread adaptation, and the second linkage segment is connected perpendicularly in the one end of first linkage segment, and the one end that deviates from first linkage segment of second linkage segment is connected perpendicularly to the third linkage segment, and wherein, separate fender fixed mounting in second linkage segment, and separate the outer wall of fender and laminate with the internal face of second linkage segment.

In some embodiments, the inner wall surface of the second connecting section is recessed along an axial direction parallel to the sleeve and facing away from the sleeve to form grooves symmetrically arranged with respect to the axial direction of the sleeve, the supporting member includes a screw rod and a guide rod, the screw rod is rotatably connected with the groove wall surface of the groove, and the guide rod is fixedly connected with the groove wall surface of the groove.

In some embodiments, the waterproof sealing assembly includes a first sealing member and a second sealing member, the first sealing member includes a first sealing plate and a plurality of first sealing protrusions, the first sealing plate passes through the guide rod and is in threaded connection with the screw, the first sealing plate is located on one side of the baffle plate close to the first connecting section, the plurality of first sealing protrusions are disposed on a surface of the first sealing plate close to the baffle plate, the first sealing plate further has a plurality of first through holes, the second sealing member includes a second sealing plate and a plurality of second sealing protrusions, the second sealing plate passes through the guide rod and is in threaded connection with the screw, the second sealing plate is located on one side of the baffle plate close to the third connecting section, the plurality of second sealing protrusions are disposed on a surface of the second sealing plate close to the baffle plate, and the second sealing plate further has a plurality of second through holes.

In some embodiments, the first sealing bumps and the second sealing bumps are made of elastic rubber, and ends of the first sealing bumps facing away from the first sealing plate and ends of the second sealing bumps facing away from the second sealing plate are all arc surfaces.

In some embodiments, the waterproof structure further includes a moisture detector, which is installed on a side of the first sealing plate facing away from the baffle plate and is used for detecting moisture in the sleeve in real time.

In some embodiments, the linkage member includes a driven bevel gear and a driving bevel gear, the driven bevel gear is coaxially and fixedly connected with the screw, the driving bevel gear is in meshed connection with the driven bevel gear, the driving member includes a driving rod and a driving block, the driving rod is coaxially and fixedly connected with the driving bevel gear and rotatably connected with the sleeve, and the driving block is fixedly connected with one end of the driving rod, which is far away from the driving bevel gear.

In some embodiments, the sleeve has a separate cavity filled with condensate, and a liquid inlet communicated with the separate cavity, the liquid inlet is in threaded connection with a piston, and the condensate is injected into the separate cavity through the liquid inlet.

According to the waterproof structure for the automobile exhaust pipe, the sleeve is installed on the exhaust pipe through the connecting piece, when rainwater weather is preset, the driving piece drives the linkage piece to move so that the supporting piece rotates to drive the waterproof sealing assembly to move along the supporting piece, the waterproof sealing assembly is in the first state of being abutted to the baffle plate and sealing the flow guide hole, rainwater can be effectively prevented from flowing backwards into the exhaust pipe, and therefore good protection effect is achieved on automobile parts; when weather is clear, the driving piece is used for driving the linkage piece to move so that the supporting piece rotates to drive the waterproof sealing assembly to move along the supporting piece, the waterproof sealing assembly is in a second state which is spaced from the baffle plate and is communicated with the flow guide hole, automobile tail gas can be normally discharged from the exhaust pipe when an automobile normally runs, repeated installation and disassembly are avoided through the waterproof structure, and the operation is simple and convenient.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a waterproof structure mounted on an exhaust pipe according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural view of a waterproof structure according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a connector according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a connector according to an embodiment of the present application;

FIG. 5 is a schematic view of the interior of the sleeve in one embodiment of the present application;

FIG. 6 is a schematic view of a linkage member according to an embodiment of the present application.

Reference numerals: 100. a waterproof structure; 110. a connecting member; 111. a connecting ring; 1111. a bonding section; 11111. an inner annular surface; 11112. an outer annular surface; 11113. an end face; 1112. a locking portion; 1113. connecting grooves; 1114. a first waterproof seal ring; 1115. a threaded hole; 1116. a second waterproof seal ring; 1117. an internal thread; 1118. an external thread; 112. a screw; 120. a sleeve; 1201. a compartment; 1202. a liquid inlet; 1203. a piston; 121. a first connection section; 122. a second connection section; 123. a third connection section; 124. a curve segment; 125. a baffle plate; 1251. a flow guide hole; 131. a first seal member; 1311. a first sealing plate; 13111. a first seal portion; 13112. a first connection portion; 13113. a first through hole; 1312. a first sealing bump; 132. a second seal member; 1321. a second sealing plate; 13211. a second seal portion; 13212. a second connecting portion; 13213. a second through hole; 1322. a second sealing bump; 13122. a circular arc surface; 140. a support member; 141. a screw; 142. a guide bar; 150. a linkage member; 151. a driven bevel gear; 152. a drive bevel gear; 160. a drive member; 161. a drive rod; 162. a drive block; 170. and a moisture detector.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the correlation technique, most city sewer engineering in China is still imperfect, and multichannel section ponding etc. when leading to heavy rain weather, although most automobile chassis have all been done sealed processing, but current blast pipe is sealed because of special reason is unable to accomplish and is prevented flowing backward, and when heavy rain weather leads to ponding more, ponding enters into inside the blast pipe easily to lead to the unable normal use of automobile parts (like the engine).

In order to solve the above technical problems, please refer to fig. 1 to 6, a first aspect of the present application provides a waterproof structure for an exhaust pipe of an automobile, which can effectively prevent rainwater from flowing back into the automobile from the exhaust pipe in heavy rain, and thus protect automobile components well.

The waterproof structure 100 includes a connector 110, a sleeve 120, a waterproof sealing assembly, a support 140, a linkage 150, and a driver 160.

The connector 110 is used as a component for connecting the sleeve 120 and the exhaust pipe in the waterproof structure 100, and the connector 110 is installed in the exhaust pipe, for example, the connector 110 may be detachably connected to the exhaust pipe, and of course, the connector 110 may also be detachably connected to the exhaust pipe.

The sleeve 120 is used as a part for bearing a waterproof sealing assembly in the waterproof structure 100, one end of the sleeve 120 is connected with the connecting piece 110, considering that the temperature of tail gas discharged by the exhaust pipe is high when the automobile normally runs, in order to avoid the end, close to the exhaust pipe, of the sleeve 120 from being scalded by the tail gas, the sleeve 120 should be made of a material with good high temperature resistance and corrosion resistance, a designer can select a suitable material according to the consideration of cost and the like, and the material of the sleeve 120 is not described in detail here. The sleeve 120 is provided with a baffle plate, for example, the baffle plate and the sleeve 120 may be arranged in an integral structure or in a split structure. When the baffle plate and the sleeve 120 are arranged in an integrated structure, the baffle plate and the sleeve 120 can be integrally arranged in an injection molding mode, and the baffle plate and the sleeve 120 can also be integrally arranged in a 3D printing mode; when the baffle plate and the sleeve 120 are arranged in a split structure, the baffle plate and the sleeve 120 can be connected in a splicing manner to realize split connection, and the joint of the baffle plate 125 and the sleeve 120 can be sealed in a waterproof manner. The baffle plate has a flow guiding hole 1251, and the flow guiding hole 1251 is used to communicate the exhaust pipe with the external atmosphere, so that the exhaust gas can smoothly flow from the exhaust pipe through the sleeve 120 and be discharged into the air.

As a component of the waterproof structure 100 for blocking rainwater from flowing backward into the vehicle exhaust pipe and entering the vehicle interior, the waterproof sealing assembly is installed in the sleeve 120, for example, the waterproof sealing assembly and the sleeve 120 may be detachably connected to each other, and of course, the waterproof sealing assembly and the sleeve 120 may also be detachably connected to each other.

The supporting member 140 is a component of the waterproof structure 100, which is used to install the waterproof sealing assembly in the sleeve 120, the supporting member 140 is installed on the inner wall surface of the sleeve 120 along the axial direction parallel to the sleeve 120, and the waterproof sealing assembly is connected to the supporting member 140, that is, the supporting member 140 is equivalent to a bracket for installing the supporting member 140 in the sleeve 120.

The link 150 serves as a transmission mechanism in the waterproof structure 100, and the link 150 is connected to the support 140, that is, the link 150 can transmit mechanical transmission to the support 140 connected thereto.

The driving member 160 serves as a driving mechanism in the waterproof structure 100, and the driving member 160 is connected to the linkage member 150, that is, the driving member 160 serves as a power source, and the linkage member 150 connected to the driving member 160 can transmit the mechanical transmission generated by the driving member 160 to the supporting member 140.

The driving member 160 is configured to move with the link member 150 to rotate the supporting member 140 to drive the waterproof sealing assembly to move along the supporting member 140, so that the waterproof sealing assembly has a first state abutting against the baffle plate to seal the diversion hole 1251 and a second state spaced from the baffle plate to communicate with the diversion hole 1251, wherein the driving member 160 is configured to move the link member 150 to move the waterproof sealing assembly along the supporting member 140 toward the baffle plate, so that the state where the waterproof sealing assembly abuts against the baffle plate and seals the diversion hole 1251 is positioned in the first state, and the driving member 160 is configured to move the link member 150 to move the waterproof sealing assembly along the supporting member 140 toward the direction away from the baffle plate, so that the state where the waterproof sealing assembly is spaced from the baffle plate and communicates with the diversion hole 1251 is defined as the second state. The waterproof sealing assembly can be switched between the first state and the second state, namely, a user can adjust the state of the waterproof sealing assembly according to the weather.

In summary, the sleeve 120 is installed on the exhaust pipe through the connecting member 110, when a rainy weather is preset, the driving member 160 drives the link member 150 to move so that the supporting member 140 rotates to drive the waterproof sealing assembly to move along the supporting member 140, and the waterproof sealing assembly is in a first state of abutting against the baffle plate and sealing the diversion hole 1251, so that rainwater can be effectively prevented from flowing backward into the exhaust pipe, and thus the automobile parts are well protected; when the weather is clear, the driving member 160 drives the linkage member 150 to move so that the support member 140 rotates to drive the waterproof sealing assembly to move along the support member 140, and the waterproof sealing assembly is in the second state of being spaced from the baffle plate and communicating the diversion hole 1251, so that the automobile tail gas can be normally discharged from the exhaust pipe when the automobile normally runs, and the waterproof structure 100 avoids repeated installation and disassembly, and is simple and convenient to operate.

Further, referring to fig. 3-4, the connecting member 110 includes a connecting ring 111 and a screw 112.

The connection ring 111 serves as a main part for connecting the exhaust pipe with the sleeve 120. The exhaust pipe is sleeved with the connection ring 111, that is, the connection ring 111 is sleeved on the exhaust pipe, and then the sleeve 120 is sleeved on the exhaust pipe through the connection ring 111, specifically, the connection ring 111 includes an attaching portion 1111 and two locking portions 1112, the attaching portion 1111 is a circular ring structure, the locking portions 1112 are rectangular block structures, the connection portion and the locking portions 1112 are integrally disposed, and the two locking portions 1112 are symmetrically disposed about a central axis of the attaching portion 1111. The connection ring 111 has a connection groove 1113, and specifically, the attachment portion 1111 of the connection ring 111 has an inner annular surface 11111, an outer annular surface 11112 arranged around the inner annular surface 11111, an end surface 11113 connecting the inner annular surface 11111 and the outer annular surface 11112, wherein a surface of the attachment portion 1111 arranged around and close to the central axis in a direction parallel to the central axis of the attachment portion 1111 is defined as the inner annular surface 11111, a surface of the attachment portion 1111 arranged around and away from the central axis in a direction parallel to the central axis of the attachment portion 1111 is defined as the outer annular surface 11112, a surface of the attachment portion 1111 arranged around in a direction perpendicular to the central axis of the attachment portion 1111 is defined as the end surface 11113, and a portion of the end surface 11113 is recessed to form the connection groove 1113. The groove side wall of the connecting groove 1113 is provided with an internal thread 1117, and specifically, the connecting groove 1113 includes a groove bottom wall and a groove side wall arranged around the groove bottom wall, wherein the groove bottom wall is positioned by a wall surface of the connecting groove 1113 disposed in parallel with the end surface 11113 of the attachment portion 1111, a wall surface of the connecting groove 1113 disposed perpendicularly to the end surface 11113 of the attachment portion 1111 is defined as the groove side wall, and the internal thread 1117 is provided on the groove side wall of the connecting groove 1113 around the central axis of the attachment portion 1111. The tank bottom wall of connecting groove 1113 is provided with first waterproof sealing circle 1114, and specifically, the material of first waterproof sealing circle 1114 is elastic rubber, through the design of first waterproof sealing circle 1114 in this design, can avoid the rainwater to enter into the blast pipe from the junction of sleeve 120 and connecting piece 110 effectively, plays good sealed effect. The connection ring 111 further has a threaded hole 1115 extending in the radial direction, and specifically, two locking portions 1112 are provided on the outer annular surface 11112 of the attachment portion 1111 and arranged away from the notch of the connection groove 1113, and the threaded hole 1115 is provided on the locking portion 1112.

The screw 112 is used as a component for realizing the relative fixation of the position between the connection ring 111 and the exhaust pipe, the screw 112 passes through the threaded hole 1115 and abuts against the exhaust pipe to realize the relative fixation of the position between the connection ring 111 and the exhaust pipe, that is, the connection member 110 and the exhaust pipe can realize the relative fixation of the position between the two by frictional abutment, of course, a threaded hole 1115 (not shown in the figure) adapted to the screw 112 can also be provided on the outer wall surface of the exhaust pipe, it should be noted that the threaded hole 1115 located on the exhaust pipe does not penetrate through the exhaust pipe, and the relative fixation of the position between the connection member 110 and the exhaust pipe can be realized by threaded connection.

With reference to fig. 3-4, further, in consideration of the possibility that rainwater may infiltrate into the exhaust pipe from the connection portion of the connection ring 111 and the exhaust pipe after the connection member 110 is sleeved on the outer wall surface of the exhaust pipe, in order to ensure the good sealing performance of the waterproof structure 100, in this embodiment, the connection member 110 further includes a second waterproof sealing ring 1116, the second waterproof sealing ring 1116 is disposed on the inner annular surface 11111 of the connection ring 111, specifically, the second waterproof sealing ring 1116 is made of an elastic rubber, and the second waterproof sealing ring 1116 is disposed on a side of the inner annular surface 11111 close to the notch of the connection groove 1113. It should be noted that, after the second waterproof sealing ring 1116 is mounted on the connecting ring 111, the inner diameter of the second waterproof sealing ring 1116 is smaller than the outer diameter of the exhaust pipe, that is, after the connecting member 110 is mounted on the exhaust pipe, a clamping force acts between the second waterproof sealing ring 1116 and the exhaust pipe, so as to achieve the sealing effect.

In order to further enhance the sealing performance of the connection portion between the connection element 110 and the exhaust pipe, in this embodiment, after the connection ring 111 is sleeved on the exhaust pipe, a waterproof sealant (not shown in the figure) is further filled between the inner annular surface 11111 and the outer wall surface of the exhaust pipe, specifically, the waterproof sealant may be an organic silicon adhesive, a JL-1100 structural adhesive, a DB9016 sealant, or the like, has good high temperature resistance and water resistance, and is suitable for bonding materials such as metal, plastic, glass, and the like. In this design, waterproof sealed glue except can further strengthen the leakproofness between connecting piece 110 and the blast pipe, secondly can also reach the effect of further strengthening the connection stability between connecting piece 110 and the blast pipe.

Referring to fig. 1, fig. 2 and fig. 5, the sleeve 120 further includes a first connecting section 121, a second connecting section 122 and a third connecting section 123.

Specifically, the first connection section 121, the second connection section 122, and the third connection section 123 are all linear, an outer wall surface of the first connection section 121 is provided with an external thread 1118 adapted to the internal thread 1117 on the groove sidewall of the connection groove 1113, the second connection section 122 is vertically connected to one end of the first connection section 121, for example, the first connection section 121 and the second connection section 122 are connected by an arc section, a central angle corresponding to the arc section is 90 degrees, the third connection section 123 is vertically connected to one end of the second connection section 122 away from the first connection section 121, for example, the second connection section 122 and the third connection section 123 are connected by another arc section, the central angle corresponding to the arc section is 90 degrees, that is, the first connection section 121, the second connection section 122, and the third connection section 123 form a sleeve 120 with a structure similar to a "Z shape" through the arc sections.

The baffle plate is fixedly mounted on the second connecting section 122, an outer wall surface of the baffle plate is attached to an inner wall surface of the second connecting section 122, and specifically, the baffle plate is located at the center of the second connecting section 122 along the axial direction of the second connecting section 122.

Further, the inner wall surface of the second connecting section 122 is recessed along an axial direction parallel to the sleeve 120 and facing away from the sleeve 120 to form grooves symmetrically arranged with respect to the axial direction of the sleeve 120, that is, the inner wall surface of the sleeve 120 is provided with two grooves symmetrically arranged along an axial direction parallel to the sleeve 120 and with respect to the axial direction of the sleeve 120. It should be noted that, since the outer wall surface of the baffle plate is attached to the inner wall surface of the sleeve 120, that is, the baffle plate divides the two grooves into two sections in the direction parallel to the axial direction of the sleeve 120.

Further, the supporting member 140 includes a screw rod 141 and a guide rod 142, wherein the screw rod 141 is rotatably connected to the groove wall surface of the groove, and the guide rod 142 is fixedly connected to the groove wall surface of the groove. Specifically, the screw 141 is disposed in the groove on one side in the axial direction parallel to the sleeve 120, two ends of the screw 141 are respectively rotatably connected to the groove wall surfaces of the groove, the guide rod 142 is disposed in the groove on the other side in the axial direction parallel to the sleeve 120, two ends of the guide rod 142 are respectively fixedly connected to the groove wall surfaces of the groove, the screw 141 is a screw rod, the direction of the thread of the screw 141 on one side of the baffle plate close to the first connecting section 121 is opposite to the direction of the thread of the screw 141 on one side of the baffle plate close to the third connecting section 123, and the thread pitches of the two threads are the same.

As shown in fig. 1, fig. 2 and fig. 5, the waterproof sealing assembly further includes a first sealing member 131 and a second sealing member 132.

The first sealing member 131 includes a first sealing plate 1311 and a plurality of first sealing protrusions 1312, the first sealing plate 1311 penetrates through the guide bar 142 and is screw-coupled to the screw 141, the first sealing plate 1311 is located at a side of the barrier 125 near the first connection section 121, the plurality of first sealing protrusions 1312 are disposed on a surface of the first sealing plate 1311 near the barrier 125, and the first sealing plate 1311 further has a plurality of first through holes 13113. Specifically, the first sealing plate 1311 includes a first sealing portion 13111 and two first connecting portions 13112 connected thereto, wherein the first sealing portion 13111 is a circular plate-shaped structure, the first connecting portions 13112 are rectangular block-shaped structures, the two first connecting portions 13112 are symmetrically disposed about a central axis of the first sealing portion 13111, the two first connecting portions 13112 are respectively fitted to corresponding sliding grooves, the screw 141 is threadedly connected to one of the first connecting portions 13112, and the guide rod 142 is inserted into the other first connecting portion 13112; the first sealing protrusion 1312 has a cylindrical shape, and the plurality of first sealing protrusions 1312 are arranged at equal intervals around the central axis of the first sealing part 13111; the first through holes 13113 are circular holes, and the plurality of first through holes 13113 are arranged at regular intervals around the central axis of the first sealing portion 13111, and it should be noted that the first sealing protrusions 1312 and the first through holes 13113 are alternately arranged on the first sealing portion 13111.

The second sealing member 132 includes a second sealing plate 1321 and a plurality of second sealing protrusions 1322, the second sealing plate 1321 passes through the guide bar 142 and is threadedly coupled to the screw 141, the second sealing plate 1321 is located at a side of the baffle plate 125 near the third connecting section 123, the plurality of second sealing protrusions 1322 are disposed on a surface of the second sealing plate 1321 near the baffle plate 125, and the second sealing plate 1321 further has a plurality of second through holes 13213. Specifically, the second sealing plate 1321 includes a second sealing portion 13211 and two second connecting portions 13212 connected thereto, where the second sealing portion 13211 is a circular plate-shaped structure, the second connecting portions 13212 are rectangular block-shaped structures, the two second connecting portions 13212 are symmetrically disposed about a central axis of the second sealing portion 13211, the two second connecting portions 13212 are respectively fitted with corresponding sliding grooves, the screw 141 is in threaded connection with one of the second connecting portions 13212, and the guide rod 142 is inserted through the other second connecting portion 13212; the second sealing projection 1322 has a cylindrical shape, and a plurality of the second sealing projections 1322 are arranged at regular intervals around a central axis of the second sealing portion 13211; the second through holes 13213 are circular holes, and the plurality of second through holes 13213 are arranged at regular equal intervals around the central axis of the second sealing portion 13211. It should be noted that the first sealing protrusion 1312 and the second sealing protrusion 1322 are used for sealing the diversion holes 1251 on the baffle 125, so the arrangement of the first sealing protrusion 1312 on the first sealing portion 13111 and the arrangement of the second sealing protrusion 1322 on the second sealing portion 13211 need to consider the arrangement of the diversion holes 1251 on the baffle 125, that is, the diversion holes 1251 are also uniformly and equally spaced on the baffle 125 around the central axis of the baffle 125.

It should be noted that, considering that the waterproof sealing assembly includes the first sealing member 131 and the second sealing member 132, the second sealing action of the waterproof sealing assembly is achieved for the diversion hole 1251 of the baffle 125 through the first sealing member 131 and the second sealing member 132, the sealing performance of the waterproof structure 100 is further improved relative to the first sealing action, and in order to ensure good sealing performance between the first sealing member 131 and the baffle 125 and between the second sealing member 132 and the baffle 125, the depth dimension of the diversion hole 1251 of the baffle 125 in the direction parallel to the axial direction of the sleeve 120 is greater than or equal to the thickness dimension of the first sealing projection 1312 plus the thickness dimension of the second sealing projection 1322, that is, the first sealing projection 1312 and the second sealing projection 1322 can be completely inserted into the diversion hole 1251 of the baffle 125.

Further, in consideration of whether rainwater can enter the interior of the automobile from the exhaust pipe, depending on how well the first sealing protrusion 1312 and the second sealing protrusion 1322 are sealed with the diversion hole 1251 of the baffle 125, in order to effectively prevent rainwater from entering the interior of the automobile from the exhaust pipe, in this embodiment, the first sealing protrusion 1312 and the second sealing protrusion 1322 are made of elastic rubber, and since the elastic rubber can be slightly deformed under the action of external force, the first sealing protrusion 1312 and the second sealing protrusion 1322 are in interference fit with the diversion hole 1251 of the baffle 125, so as to achieve the sealing connection between the first sealing protrusion 1312 and the diversion hole 1251 and between the second sealing protrusion and the diversion hole 1251.

Referring to fig. 5, in order to achieve good sealing between the first sealing protrusion 1312 and the diversion hole 1251 and between the second sealing protrusion 1322 and the diversion hole 1251, a designer may design the radial dimensions of the radial cross-sections of the first sealing protrusion 1312 and the second sealing protrusion 1322 to be slightly larger than the radial dimensions of the diversion hole 1251 of the baffle 125, so that the first sealing protrusion 1312 and the second sealing protrusion 1322 can be conveniently and quickly inserted into the diversion hole 1251 of the baffle 125, in this embodiment, the ends of the first sealing protrusions 1312 facing away from the first sealing plate 1311 and the ends of the second sealing protrusions 1322 facing away from the second sealing plate 1321 are arc surfaces 13122, and the arc surfaces 13122 have a guiding function, and the design facilitates the first sealing protrusion and the second sealing protrusion to be inserted into the diversion hole 1251 of the baffle 125.

Referring to fig. 5-6, further, considering that the waterproof structure 100 may be worn by external factors (e.g., collision) after the waterproof structure 100 is installed on the exhaust pipe and exposed to the external environment for a long time, in order to detect whether the waterproof structure 100 leaks water in real time, in this embodiment, the waterproof structure 100 further includes a humidity detector 170, the humidity detector 170 is installed on a side of the first sealing plate 1311 away from the partition 125 and is used for detecting the humidity inside the sleeve 120 in real time, wherein the humidity detector 170 may be a humidity sensor, the type of the humidity sensor is not limited, and a designer may select a humidity sensor with a suitable type according to actual needs. The moisture detector 170 is electrically connected to a controller of the vehicle, when the moisture detector 170 detects that the humidity inside the sleeve 120 is relatively high, the moisture detector 170 sends an electrical signal to the controller, and the controller controls related components to respond (for example, a voice alarm) after receiving the electrical signal, so that a user can immediately replace the waterproof structure 100 according to the response.

As shown in fig. 5 to 6, the linkage 150 includes a driven bevel gear 151 and a driving bevel gear 152.

The driven bevel gear 151 is coaxially and fixedly connected with the screw rod 141, and the drive bevel gear 152 is engaged with the driven bevel gear 151, specifically, the driven bevel gear 151 is coaxially and fixedly connected with one end of the screw rod 141 close to the third connecting section 123 of the sleeve 120, and the drive bevel gear 152 is engaged with one side of the driven bevel gear 151 close to the inner wall surface of the sleeve 120.

The driver 160 includes a driving rod 161 and a driving block 162.

The driving rod 161 is coaxially and fixedly connected with the drive bevel gear 152 and rotatably connected with the sleeve 120, the driving block 162 is fixedly connected with one end of the driving rod 161 away from the drive bevel gear 152, specifically, the driving rod 161 is arranged along the radial direction of the sleeve 120 and coaxially and fixedly connected with the drive bevel gear 152, the driving rod 161 is rotatably connected with the sleeve 120 through a bearing, and one end of the driving rod 161 away from the drive bevel gear 152 penetrates through the sleeve 120 and is fixedly connected with the driving block 162. In this design, the screw 141 drives the first sealing plate 1311 and the second sealing plate 1321 to move towards each other along the length direction of the screw 141, and the first sealing protrusion 1312 and the second sealing protrusion 1322 are sealed with the diversion hole 1251, that is, the first sealing protrusion 1312 and the second sealing protrusion 1322 are not easily separated from the diversion hole 1251 of the partition plate 125, so that the sealing stability of the waterproof sealing assembly in the first state is achieved.

Further, considering that the temperature of the exhaust gas exhausted from the exhaust pipe is higher when the automobile normally operates, and thus the temperature of the exhaust pipe is higher, there may be a possibility that the first waterproof sealing ring 1114 and the second waterproof sealing ring 1116 close to the exhaust pipe are scalded, in order to avoid that the first waterproof sealing ring 1114 and the second waterproof sealing ring 1116 are scalded to cause water leakage at the position where the waterproof structure 100 is connected with the exhaust pipe, in this embodiment, the sleeve 120 has a separation cavity 1201, the separation cavity 1201 is filled with condensate, the sleeve 120 further has a liquid inlet 1202 communicated with the separation cavity 1201, the liquid inlet 1202 is in threaded connection with a piston 1203, and the condensate is injected into the separation cavity 1201 through the liquid inlet 1202. In the design, the condensate can cool the tail gas to avoid the possibility that the first waterproof sealing ring 1114 and the second waterproof sealing ring 1116 are scalded, so that the good waterproof sealing performance of the waterproof structure 100 is ensured. And the design that piston 1203 and inlet 1202 threaded connection, can change the condensate in dividing a chamber 1201 regularly to guarantee the effective cooling of condensate to the tail gas. It should be noted that the condensate may be provided to vaporize the water vapor in the exhaust gas into small water drops, which may be formed on the side of the baffle 125 close to the first connecting section 121 of the sleeve 120 (i.e., the side of the baffle 125 where the moisture detector 170 is located), but the small water drops are not enough for the moisture detector 170 to send an electric signal to the controller, i.e., the small water drops do not cause misjudgment of the moisture detector 170.

The following briefly describes a work flow using the waterproof structure 100 described above.

When rainy weather is predicted, after a user parks the automobile at a proper position, the user rotates the driving rod 161 by means of the driving block 162, the driving rod 161 rotates to drive the driving bevel gear 152 connected with the driving bevel gear to rotate, the driving bevel gear 152 drives the driven bevel gear 151 engaged with the driving bevel gear to rotate, the driven bevel gear 151 drives the screw rod 141 connected with the driven bevel gear to rotate, under the action of the screw rod 141, the first sealing plate 1311 moves towards the direction close to the baffle plate 125 along the length direction of the screw rod 141, the second sealing plate 1321 simultaneously moves towards the direction close to the baffle plate 125 along the length direction of the screw rod 141, in other words, under the action of the screw rod 141, the first sealing plate 1311 and the second sealing plate 1321 simultaneously move towards each other along the length direction of the screw rod 141 until the first sealing projection 1251312 and the second sealing projection 1322 are simultaneously engaged with the diversion hole 1 of the baffle plate 125, that is, the waterproof, thereby achieving double sealing of the baffle 125 by the first and second sealing members 131 and 132, which further enhances the sealing performance of the waterproof structure 100 relative to a single layer seal.

When a user needs to use the vehicle in a sunny day, the user can rotate the driving rod 161 by means of the driving block 162, the driving rod 161 drives the driving bevel gear 152 connected with the driving bevel gear to rotate, the driving bevel gear 152 drives the driven bevel gear 151 connected with the driving bevel gear to rotate, the driven bevel gear 151 drives the screw rod 141 connected with the driven bevel gear to rotate, under the action of the screw rod 141, the first sealing plate 1311 moves towards the direction departing from the baffle plate 125 along the length direction of the screw rod 141, meanwhile, the second sealing plate 1321 moves towards the direction departing from the baffle plate 125 along the length direction of the screw rod 141 until the first sealing bump 1312 and the second sealing bump 1322 are completely separated from the flow guide hole 1251 of the baffle plate 125, that is, the waterproof sealing assembly is in the second state, so that the exhaust pipe is communicated with the external atmosphere, and automobile exhaust can be normally exhausted from the exhaust pipe.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A waterproof structure for an automobile exhaust pipe, characterized by comprising:

the connecting piece is sleeved and arranged on the exhaust pipe;

one end of the sleeve is connected with the connecting piece, a baffle plate is arranged in the sleeve, and the baffle plate is provided with a flow guide hole;

the waterproof sealing component is arranged in the sleeve;

the supporting piece is arranged on the inner wall surface of the sleeve along the axial direction parallel to the sleeve, and the waterproof sealing assembly upper piece is connected with the supporting piece;

a linkage connected with the support; and

the driving piece is connected with the linkage piece;

the driving piece is configured to drive the linkage piece to move so as to enable the support piece to rotate to drive the waterproof sealing assembly to move along the support piece, so that the waterproof sealing assembly has a first state of abutting against the baffle plate to seal the flow guide hole and a second state of spacing from the baffle plate to conduct the flow guide hole, and the waterproof sealing assembly can be switched between the first state and the second state.

2. The waterproof structure according to claim 1, wherein said connecting member comprises:

the connecting ring is sleeved on the exhaust pipe and provided with a connecting groove, the side wall of the connecting groove is provided with an internal thread, the bottom wall of the connecting groove is provided with a first waterproof sealing ring, and the connecting ring is also provided with a threaded hole extending along the radial direction of the connecting ring;

and the screw penetrates through the threaded hole and is abutted with the exhaust pipe so as to realize the relative fixation of the positions of the connecting ring and the exhaust pipe.

3. The waterproof structure according to claim 2,

the connecting piece still includes the waterproof sealing washer of second, the waterproof sealing washer of second set up in the inboard annular face of go-between, the go-between cover is located behind the blast pipe, inboard annular face with it has waterproof sealed glue still to fill between the outer wall of blast pipe.

4. The waterproof structure according to claim 2, wherein said sleeve comprises:

the outer wall surface of the first connecting section is provided with an external thread matched with the internal thread;

the second connecting section is vertically connected to one end of the first connecting section; and

the third connecting section is vertically connected to one end, away from the first connecting section, of the second connecting section;

the baffle plate is fixedly installed on the second connecting section, and the outer wall surface of the baffle plate is attached to the inner wall surface of the second connecting section.

5. The waterproof structure according to claim 4,

the inner wall surface of the second connecting section is recessed along the axial direction parallel to the sleeve and facing away from the sleeve to form grooves symmetrically arranged along the axial direction of the sleeve;

the support member includes:

the screw rod is rotationally connected with the groove wall surface of the groove;

and the guide rod is fixedly connected with the groove wall surface of the groove.

6. The waterproof structure of claim 5, wherein said waterproof seal assembly comprises:

the first sealing element comprises a first sealing plate and a plurality of first sealing convex blocks, the first sealing plate penetrates through the guide rod and is in threaded connection with the screw rod, the first sealing plate is positioned on one side, close to the first connecting section, of the baffle plate, the plurality of first sealing convex blocks are arranged on the surface, close to the baffle plate, of the first sealing plate, and the first sealing plate is further provided with a plurality of first through holes;

the second sealing piece comprises a second sealing plate and a plurality of second sealing convex blocks, the second sealing plate penetrates through the guide rod and is in threaded connection with the screw rod, the second sealing plate is located on one side, close to the third connecting section, of the baffle plate, the second sealing convex blocks are arranged on the surface, close to the baffle plate, of the second sealing plate, and the second sealing plate is further provided with a plurality of second through holes.

7. The waterproof structure according to claim 6,

the materials of the first sealing convex blocks and the second sealing convex blocks are elastic rubber;

the end of the first sealing convex blocks, which deviates from the first sealing plate, and the end of the second sealing convex blocks, which deviates from the second sealing plate, are both arc surfaces.

8. The waterproof structure according to claim 6,

the waterproof structure further comprises a moisture detector, and the moisture detector is arranged on one side, deviating from the baffle plate, of the first sealing plate and is used for detecting the humidity in the sleeve in real time.

9. The waterproof structure according to claim 5,

the linkage includes:

the driven bevel gear is coaxially and fixedly connected with the screw;

the driving bevel gear is in meshed connection with the driven bevel gear;

the driving member includes:

the driving rod is coaxially and fixedly connected with the driving bevel gear and is rotationally connected with the sleeve;

and the driving block is fixedly connected with one end of the driving rod, which is far away from the driving bevel gear.

10. The waterproof structure according to claim 1,

the sleeve is provided with a separation cavity, condensate is filled in the separation cavity, the sleeve is further provided with a liquid inlet communicated with the separation cavity, the liquid inlet is in threaded connection with a piston, and the condensate is injected into the separation cavity through the liquid inlet.

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