CN217518739U - Sealing structure for matching plastic pipe with supercharger - Google Patents

Abstract

The utility model discloses a plastic tubing and booster complex seal structure, its characterized in that: the air filter comprises a U-shaped rubber sleeve which is cylindrical as a whole, wherein the cross section of the side wall of the U-shaped rubber sleeve is U-shaped and encloses an annular insertion groove which is used for being inserted with an air inlet pipe of a supercharger, and a central hole of the U-shaped rubber sleeve is used for being inserted with an air outlet pipe of an air filter. The wall thickness of the U-shaped rubber sleeve is less than or equal to 1/3D. Two or more annular bulges are arranged on the radial bulge of the inner wall of the central hole of the U-shaped rubber sleeve. The inner wall of the annular inserting groove is radially sunken to be provided with more than two annular sealing grooves, and the pipe wall of the air inlet pipe of the matched supercharger is provided with more than two annular bulges matched with the annular sealing grooves. The utility model discloses reduce the thickness of straight section of thick bamboo type rubber sleeve under the prerequisite that does not reduce structural strength, practice thrift the cost to good sealed effect has been realized.

Description

Sealing structure for matching plastic pipe with supercharger

Technical Field

The utility model relates to the technical field of machinery, especially, relate to air cleaner outlet duct and pressure boost gas intake pipe matched with seal structure in the motor vehicle.

Background

The motor vehicle needs to provide clean air for the engine, and an air filter and a supercharger are sequentially arranged in an air inlet pipeline system of the engine from the upstream to the downstream in the direction of air flow. The air filter is used for filtering air in the environment into clean air, an air outlet pipe of the air filter and an air inlet pipe of the supercharger need to be in sealed butt joint, and the filtered air is pressurized and then is supplied to the engine; therefore, a sealing structure is required to be arranged between the air outlet pipe of the air filter and the air inlet pipe of the supercharger, and the sealing state of the air path is ensured.

In the prior art, a straight cylinder type rubber sleeve is used and sleeved at the butt joint of an air outlet pipe of an air filter and a supercharger air inlet pipe, the air outlet pipe of the air filter and the supercharger air inlet pipe do not occupy the same position in the axial direction, the straight cylinder type rubber sleeve is long in axial length, and the thickness D of the straight cylinder type rubber sleeve is large in order to guarantee the structural strength of the joint. Because the material of this straight cylinder type rubber sleeve is AEM or ACM, the price is expensive, therefore current straight cylinder type rubber sleeve is because thickness is great and the cost is higher.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plastic tubing and booster complex seal structure can reduce the thickness of straight cartridge type rubber sleeve under the prerequisite that does not reduce structural strength, practices thrift the cost.

In order to achieve the above object, the utility model discloses a plastic tubing and booster complex seal structure is including wholly being cylindric U type rubber sleeve, and the cross-section of U type rubber sleeve lateral wall is the U-shaped and encloses into the annular inserting groove that is used for pegging graft mutually with the booster intake pipe, and the centre bore of U type rubber sleeve is used for pegging graft mutually with air cleaner's outlet duct.

The wall thickness of the U-shaped rubber sleeve is less than or equal to 1/3D.

Two or more annular bulges are arranged on the radial bulge of the inner wall of the central hole of the U-shaped rubber sleeve.

The inner wall of the annular inserting groove is radially sunken to be provided with more than two annular sealing grooves, and the pipe wall of the air inlet pipe of the matched supercharger is provided with more than two annular bulges matched with the annular sealing grooves.

The outer wall of the U-shaped rubber sleeve is provided with a clamping groove along the circumferential direction, the clamping groove is provided with an interruption opening, a long strip-shaped sheet-shaped clamping belt is installed in the clamping groove, and the clamping belt is used for compacting the U-shaped rubber sleeve after being bundled;

the angle that the joint area surrounded U type rubber sleeve is greater than 360 degrees, installs the closing device who is used for compressing tightly the joint area on the U type rubber sleeve outer wall of the interrupt opening part in joint groove, and closing device is including compressing tightly seat and clamp bolt, and closing device is all passed at the both ends in joint area, and clamp bolt and the both ends that compress tightly the joint area after compressing tightly seat screw-thread fit and being used for screwing.

The utility model discloses following advantage has:

the straight-tube rubber sleeve in the prior art is adopted, the supercharger air inlet pipe and the air outlet pipe of the air filter have no axial overlapping part, and the total wall thickness of the sealing connection part is D + the wall thickness of the supercharger air inlet pipe or D + the wall thickness of the air outlet pipe of the air filter, so that the wall thickness requirement of the straight-tube rubber sleeve is thicker; by adopting the structure of the invention, the air inlet pipe of the supercharger and the air outlet pipe of the air filter are overlapped at the U-shaped rubber sleeve, and the total wall thickness at the joint is (the sum of the wall thicknesses of the two side walls of the U-shaped rubber sleeve, the wall thickness of the air inlet pipe of the supercharger and the wall thickness of the air outlet pipe of the air filter), so the requirement on the wall thickness of the U-shaped rubber sleeve is greatly reduced due to the consideration of structural strength; after the wall thickness of the U-shaped rubber sleeve is reduced, the material cost is naturally greatly reduced.

The wall thickness of the U-shaped rubber sleeve is less than or equal to 1/3D (namely, less than one third of the wall thickness of the straight-tube-shaped rubber sleeve), so that the material cost is reduced by more than 2/3.

Because the rubber material is adopted, the annular bulges and the whole U-shaped rubber sleeve have certain elasticity, and the air outlet pipe of the air filter is allowed to pass through each annular bulge and be inserted into the central hole of the U-shaped rubber sleeve. Under the action of the elastic force, each annular bulge tightly holds the air outlet pipe of the air filter to form a good sealing state.

When the air inlet pipe is used, the air inlet pipe of the supercharger is inserted into the annular insertion groove, and the annular protrusions on the air inlet pipe are clamped into the annular sealing grooves to form a good sealing state.

The joint groove is used for fixing the axial position of the clamping belt, so that the clamping belt does not displace under the vibration action (the utility model is used for the motor vehicle, when the motor vehicle runs, the utility model discloses be in the vibration state) in use.

U type rubber sleeve has elasticity, therefore can be through on the outer wall of U type rubber sleeve (be located the joint inslot) with the joint area winding, then tighten up the mode of joint area, play the effect of shrink U type rubber sleeve for U type rubber sleeve is in the same place with air cleaner's outlet duct and the intake pipe of booster close crimping in radial direction, has further strengthened the leakproofness of the outlet duct of air cleaner and the intake-tube connection department of booster.

Drawings

FIG. 1 is a schematic structural view of the present invention, and FIG. 1 shows a portion of a supercharger intake pipe; in order to express the annular insertion groove, the part of the supercharger air inlet pipe extending into the depth of the annular insertion groove is not shown in fig. 1, and only the part of the supercharger air inlet pipe extending into the deep inlet part of the annular insertion groove is shown; only the part of the supercharger air inlet pipe connected with the utility model is shown in fig. 1, and the axial length is not shown; the supercharger inlet duct actually extends downwardly in the direction of fig. 1 for some axial length.

FIG. 2 is a view from A-A of FIG. 1;

fig. 3 is a schematic perspective view of the present invention;

FIG. 4 is a schematic view of the structure of the clamping belt and the pressing base;

fig. 5 is a schematic perspective view of the snap belt and the pressing base.

Detailed Description

As shown in fig. 1 to 5, the utility model discloses a plastic tubing and booster complex seal structure is including wholly being cylindric U type rubber sleeve 1, and the cross-section of 1 lateral wall of U type rubber sleeve is the U-shaped and encloses into the annular inserting groove 3 that is used for pegging graft mutually with booster intake pipe 2, and the centre bore 4 of U type rubber sleeve 1 is used for pegging graft mutually with air cleaner's outlet duct. The air outlet pipe of the air filter is of a conventional structure and is not shown in the figure.

The straight-tube rubber sleeve in the prior art is adopted, the supercharger air inlet pipe 2 and the air outlet pipe of the air filter have no axial overlapping part, and the total wall thickness of the sealing connection part is D + the wall thickness of the supercharger air inlet pipe 2 or D + the wall thickness of the air outlet pipe of the air filter, so the wall thickness requirement of the straight-tube rubber sleeve is thicker; by adopting the structure of the invention, the supercharger air inlet pipe 2 and the air outlet pipe of the air filter are overlapped together at the U-shaped rubber sleeve 1, and the total wall thickness at the joint is (the sum of the wall thicknesses of the two U-shaped side walls of the U-shaped rubber sleeve 1, the wall thickness of the supercharger air inlet pipe 2 and the wall thickness of the air outlet pipe of the air filter), so that the requirement on the wall thickness of the U-shaped rubber sleeve 1 is greatly reduced in consideration of structural strength; after the wall thickness of the U-shaped rubber sleeve 1 is reduced, the material cost is naturally greatly reduced.

The wall thickness of the U-shaped rubber sleeve 1 is less than or equal to 1/3D (namely, less than one third of the wall thickness D of the straight-tube-shaped rubber sleeve). So that the material cost is reduced by more than 2/3.

Two or more annular bulges 5 are arranged on the radial bulge of the inner wall of the central hole 4 of the U-shaped rubber sleeve 1.

Because of the rubber material, the annular bulge 5 and the whole U-shaped rubber sleeve 1 have certain elasticity, and the air outlet pipe of the air filter is allowed to pass through each annular bulge 5 and be inserted into the central hole 4 of the U-shaped rubber sleeve 1. Under the action of elasticity, each annular bulge 5 tightly holds the air outlet pipe of the air filter to form a good sealing state.

The inner wall of the annular insertion groove 3 is radially sunken to be provided with more than two annular sealing grooves 6, and the pipe wall of the air inlet pipe 2 of the matched supercharger is matched with the annular sealing grooves 6 to be provided with more than two annular bulges.

When the air inlet pipe 2 of the supercharger is used, the air inlet pipe is inserted into the annular insertion groove 3, and the annular protrusions 5 on the air inlet pipe are clamped into the annular sealing grooves 6 to form a good sealing state.

A clamping groove 7 is formed in the outer wall of the U-shaped rubber sleeve 1 along the circumferential direction of the U-shaped rubber sleeve, the clamping groove 7 is provided with an interruption opening, a long and thin clamping belt 8 is installed in the clamping groove 7, and the clamping belt 8 is used for tightly pressing the U-shaped rubber sleeve 1 after being collected; the joint groove 7 is used for fixing the axial position of the joint belt 8, so that the displacement does not occur under the vibration action (the utility model is used for the motor vehicle, when the motor vehicle runs, the utility model is in the vibration state) in the use.

The angle that joint area 8 encircles U type rubber sleeve 1 is greater than 360 degrees, installs the closing device who is used for compressing tightly joint area 8 on the U type rubber sleeve 1 outer wall of the interrupt opening part of joint groove 7, and closing device is including compressing tightly seat 9 and clamp bolt 10, and closing device is all passed at the both ends in joint area 8, and clamp bolt 10 compresses tightly the both ends in joint area 8 with compressing tightly 9 screw-thread fit of seat and being used for screwing the back. The tightening of the fastened member by tightening the compression bolt is a conventional technique, and details thereof will not be described.

U type rubber sleeve 1 has elasticity, therefore can be through on the outer wall of U type rubber sleeve 1 (be located joint groove 7) with the winding of joint area 8, then tighten up the mode of joint area 8, play the effect of shrink U type rubber sleeve 1 for U type rubber sleeve 1 is in the same place with air cleaner's outlet duct and the intake pipe 2 of booster close crimping in radial direction, has further strengthened the leakproofness of junction.

During connection, insert the outlet duct of air cleaner into the centre bore 4 of U type rubber sleeve 1, insert annular inserting groove 3 with the intake pipe 2 of booster, pass clamping belt 8 and compress tightly seat 9 and twine more than a week (being greater than 360 degrees) in clamping groove 7, make clamping belt 8's both ends all through compressing tightly seat 9, pull clamping belt 8's both ends hard, make clamping belt 8 receive and restraint and compress tightly U type rubber sleeve 1, thereby make U type rubber sleeve 1 and air cleaner's outlet duct and booster's intake pipe 2 tight crimping together on radial direction, strengthen the sealing performance of junction, then screw up clamp bolt 10, fix clamping belt 8, accomplish the connection operation.

The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents of the present invention may be made without departing from the spirit and scope of the invention, which is intended to be covered by the appended claims.

Claims (5)

1. Plastic tubing and booster complex seal structure, its characterized in that: the air filter comprises a U-shaped rubber sleeve which is cylindrical as a whole, wherein the cross section of the side wall of the U-shaped rubber sleeve is U-shaped and encloses an annular insertion groove which is used for being inserted with an air inlet pipe of a supercharger, and a central hole of the U-shaped rubber sleeve is used for being inserted with an air outlet pipe of an air filter.

2. A plastic tube to supercharger-fitted seal structure according to claim 1, wherein: the wall thickness of the U-shaped rubber sleeve is less than or equal to 1/3D.

3. A sealing structure of a plastic tube fitted with a pressure booster according to claim 1, wherein: two or more annular bulges are arranged on the radial bulge of the inner wall of the central hole of the U-shaped rubber sleeve.

4. A sealing structure of a plastic tube fitted with a pressure booster according to any one of claims 1 to 3, wherein: the inner wall of the annular insertion groove is radially sunken to form more than two annular sealing grooves, and the pipe wall of the air inlet pipe of the matched supercharger is provided with more than two annular bulges matched with the annular sealing grooves.

5. A plastic tube to supercharger-fitted seal structure according to claim 4, wherein: the outer wall of the U-shaped rubber sleeve is provided with a clamping groove along the circumferential direction, the clamping groove is provided with an interruption opening, a long strip-shaped sheet-shaped clamping belt is installed in the clamping groove, and the clamping belt is used for compacting the U-shaped rubber sleeve after being bundled;

the angle that the joint area surrounded U type rubber sleeve is greater than 360 degrees, installs the closing device who is used for compressing tightly the joint area on the U type rubber sleeve outer wall of the interrupt opening part in joint groove, and closing device is including compressing tightly seat and clamp bolt, and closing device is all passed at the both ends in joint area, and clamp bolt and the both ends that compress tightly the joint area after compressing tightly seat screw-thread fit and being used for screwing.

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