CN210530954U

CN210530954U - One-way valve integrating heating function

Info

Publication number: CN210530954U
Application number: CN201920875591.5U
Authority: CN
Inventors: 杨纪刚
Original assignee: Suzhou Cassidy Auto Parts Co Ltd
Current assignee: Suzhou Cassidy Auto Parts Co Ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-05-15
Anticipated expiration: 2029-06-12

Abstract

The utility model discloses an integrated heating function's check valve has the main casing body, the main casing body passes through the check valve and is connected with the bent pipe, bent pipe and engine cylinder head cover intercommunication, the check valve is in the same place with integrated heater welding downwards, the lower extreme and the male joint of integrated heater are connected, the male joint strains the pipeline intercommunication with the air of admitting air, the utility model discloses a this check valve of technical scheme only allows gaseous from the empty air intake pipe that strains of engine cylinder head cover end flow direction, and is reverse unable to lead to, and simple structure, effectual cost of maintenance height and the inconvenient problem of change have been solved, have improved the life of product.

Description

One-way valve integrating heating function

Technical Field

The utility model relates to a check valve body's schematic structure drawing especially relates to a check valve of integrated heating function.

Background

At present, an electric heater is not arranged on a crankcase ventilation pipeline of most of engines, the pipeline is easy to freeze and block in a low-temperature environment, the internal pressure of the engine is too large, the problems of oil leakage or flying of an oil dipstick and the like can occur, and on the other hand, a check valve is generally integrated in a cylinder head cover, so that the maintenance cost is high, and the replacement is inconvenient. Secondly, under low temperature conditions, the engine crankcase ventilation pipe system is easy to freeze at the one-way valve, which causes damage to the engine.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the aforesaid provided, provide a simple structure, solve freeze and can not cause the big check valve of an integrated heating function of engine internal pressure.

The purpose of the utility model is realized with the following mode: the utility model provides an integrated check valve that heats function, has the main casing body, the main casing body passes through the check valve and is connected with the bent pipe, bent pipe and engine cylinder head cover intercommunication, the check valve is in the same place with integrated heater welding downwards, integrated heater's lower extreme and male joint are connected, male joint and air filter pipeline intercommunication of admitting air.

Still further the check valve of integrated heating function, integrated heater includes heating pipe, heat conduction piece, uide bushing, plate electrode and temperature control unit, the vertical inner wall that sets up at the main casing of heating pipe, the heat conduction piece is connected with the pipe wall of heating pipe, the temperature control unit pass through the plate electrode with the uide bushing is connected.

Further, the one-way valve integrating the heating function is characterized in that a spring A is arranged in a hollow shaft of the guide sleeve, the spring A is elastically connected with a spring B, and the spring B is arranged in the plug connector.

Furthermore, the one-way valve with the integrated heating function is internally provided with a limit stop which is connected with the diaphragm and used for limiting gas to flow from the end of the engine cylinder head cover to the air filtering inlet pipeline and to be blocked reversely.

Still further, the valve body and the integrated heater are fixed together by ultrasonic welding or spin-melt welding.

Furthermore, a three-point locking ring is arranged between the male joint and the integrated heater, and the three-point locking ring is used for limiting and locking the male joint.

In a further aspect of the check valve with integrated heating function, the integrated heater and the male joint are sealed by an O-ring.

The utility model has the advantages that: the technical scheme of the utility model this check valve only allows gas to strain the air inlet pipe way from engine cylinder head cover end flow direction sky, and is reverse unable to lead to, simple structure, effectual solved cost of maintenance height and change inconvenient problem, improved the life of product, the whole assembly of check valve and heater is simple, convenient with the connected mode of adversary's piece, and the maintenance in later stage is changed conveniently.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of another view of FIG. 1;

fig. 3 is a schematic sectional view of a-a of fig. 2.

The specific implementation mode is as follows:

referring to fig. 1 to 3, the one-way valve with integrated heating function has a main housing 1, the main housing 1 is connected with a curved pipe 17 through a one-way valve 16, the curved pipe 17 is communicated with an engine cylinder head cover, the one-way valve 16 is welded with an integrated heater 19 downwards, the lower end of the integrated heater 19 is connected with a male joint 18, and the male joint 18 is communicated with an air intake filter pipeline.

The integrated heater 19 includes heating pipe 2, heat conduction piece 3, uide bushing 4, electrode plate 5 and temperature control unit 6, the vertical inner wall that sets up at main casing body 1 of heating pipe 2, heat conduction piece 3 is connected with the pipe wall of heating pipe 2, temperature control unit 6 pass through electrode plate 5 with uide bushing 4 is connected.

A spring A7 is arranged in the hollow shaft of the guide sleeve 4, the spring A7 is elastically connected with a spring B8, and the spring B8 is arranged in the plug 9.

A limit stop 15 is arranged in the one-way valve 16, and the limit stop 15 is connected with the diaphragm 14 and used for limiting gas to flow from the end of the engine cylinder head cover to the air filtering inlet pipeline and to be blocked reversely.

The main housing 1 and the integrated heater 19 are secured together by ultrasonic welding or spin-melt welding.

A three-point locking ring 13 is arranged between the male joint 18 and the integrated heater 19, and the three-point locking ring 13 is used for limiting and locking the male joint 18.

The integrated heater 19 is sealed to the male fitting 18 with an O-ring 12.

The check valve only allows gas to flow from the cylinder head cover end of the engine to the air filtering inlet pipeline, and the check valve does not allow gas to flow in the reverse direction.

The one-way valve end adopts a standard male joint and is connected with a quick connector of a crankcase ventilation pipe on an engine cylinder head cover.

The one-way valve is integrated with the heater, so that the number of parts and the development cost are reduced.

Under the low temperature condition, the engine crankcase ventilation pipeline system is easy to freeze at the one-way valve, and after the heater and the one-way valve are integrated, the problem of freezing at the position of the one-way valve can be effectively solved.

After the one-way valve and the heater are integrated, the whole assembly is arranged on an air filtering air inlet main pipeline, the whole assembly and the air filtering pipeline are fastened together by adopting a non-detachable quick-insertion structure, and the structure adopts a three-point fastening locking ring to limit and lock the male connector.

After the check valve is integrated with the heater, the icing problem of a ventilation pipeline of the crankcase under a low-temperature environment can be effectively solved, and the flowing direction of air flow of the engine under different working conditions is controlled through the check valve on the heater.

The connection mode of the whole assembly of the check valve and the heater and the opponent part is simple and convenient, and the later maintenance and replacement are convenient.

The whole assembly of the check valve and the heater has a limiting structure for preventing rotation relative to the air inlet air path pipeline.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides an integrated heating function's check valve which characterized in that: the air filter is provided with a main shell (1), the main shell (1) is connected with a bent pipe (17) through a one-way valve (16), the bent pipe (17) is communicated with an engine cylinder head cover, the one-way valve (16) is welded with an integrated heater (19) downwards, the lower end of the integrated heater (19) is connected with a male joint (18), and the male joint (18) is communicated with an air inlet filter pipeline.

2. An integrated heating function check valve as defined in claim 1, wherein: integrated heater (19) include heating pipe (2), heat conduction piece (3), uide bushing (4), plate electrode (5) and control by temperature change unit (6), the vertical inner wall that sets up in main casing body (1) of heating pipe (2), heat conduction piece (3) are connected with the pipe wall of heating pipe (2), control by temperature change unit (6) pass through plate electrode (5) with uide bushing (4) are connected.

3. An integrated heating function check valve as claimed in claim 2, wherein: a spring A (7) is arranged in a hollow shaft of the guide sleeve (4), the spring A (7) is elastically connected with a spring B (8), and the spring B (8) is arranged in the plug connector (9).

4. An integrated heating function check valve as claimed in claim 3, wherein: a limit stop (15) is arranged in the one-way valve (16), and the limit stop (15) is connected with the diaphragm (14) and used for limiting gas to flow from the end of the engine cylinder head cover to the air filtering air inlet pipeline and to be blocked reversely.

5. An integrated heating function check valve as claimed in claim 4, wherein: the main shell (1) and the integrated heater (19) are fixed together by ultrasonic welding or spin-melt welding.

6. An integrated heating function check valve as claimed in claim 5, wherein: a three-point locking ring (13) is arranged between the male joint (18) and the integrated heater (19), and the three-point locking ring (13) is used for limiting and locking the male joint (18).

7. An integrated heating function check valve as defined in claim 6, wherein: the integrated heater (19) and the male joint (18) are sealed by adopting an O-shaped ring (12).