CN210310276U

CN210310276U - Telescopic spray rinsing subassembly

Info

Publication number: CN210310276U
Application number: CN201921401155.0U
Authority: CN
Inventors: 巩少恒; 董志伟
Original assignee: ARaymond Automotive Fasteners Zhenjiang Co ltd
Current assignee: ARaymond Automotive Fasteners Zhenjiang Co ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-04-14
Anticipated expiration: 2029-08-27

Abstract

The utility model discloses a telescopic spray rinsing subassembly, including the shower nozzle assembly, with the tube-shape shell body that the shower nozzle assembly is connected, set up the honeycomb duct in the shell body and set up the elastomeric element in the shell body, honeycomb duct outside section of thick bamboo wall encircles and sets up first seal cover, first seal cover can stretch out and draw back in the shell body and between the honeycomb duct lateral wall, honeycomb duct upper end periphery sets up the boss structure of circumference shape, elastomeric element's one end with boss structure butt, the other end with the upper end butt of shell body, the upper end that the honeycomb duct is located boss structure is provided with the check valve, the lower extreme of shower nozzle assembly with sealing connection between the check valve. The telescopic component of the utility model provides a stable cleaning combined structure for the combination of the telescopic of the spring and the threshold value of the one-way valve, simplifies the whole structure and is convenient to install; the telescopic spray-washing assembly adopts a plurality of sealing sleeves, so that the water leakage phenomenon is prevented, and the washing efficiency is improved.

Description

Telescopic spray rinsing subassembly

Technical Field

The utility model relates to a vehicle headlamps washs apparatus technical field, concretely relates to telescopic spray rinsing subassembly.

Background

Generally, a vehicle headlamp is generally mounted at both sides of a front portion of a vehicle for inspecting and recognizing an object so that light can be irradiated to the front portion of the vehicle when the vehicle travels in a tunnel or at night. With the large number of gas discharge lamps in the middle and high end class car market, the requirements for safety of lighting of car lamps are becoming more and more strict and standard. For this reason, most of the middle and high-grade vehicle types are equipped with a headlamp cleaning device.

However, most of the existing cleaning devices adopt piston type sealing elements, and the structure causes poor sealing effect, so that the cleaning efficiency is low, the service life is short, the structure is complex, and the manufacturing and installation difficulty is high.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to solve the problems of the prior art, the utility model provides a nozzle assembly with high cleaning efficiency, simple structure and simple installation and manufacture.

The technical scheme is as follows: telescopic spray rinsing subassembly, including the shower nozzle assembly, with the tube-shape shell body that the shower nozzle assembly is connected, set up the honeycomb duct in the shell body and set up the elastomeric element in the shell body, honeycomb duct outside section of thick bamboo wall encircles and sets up first seal cover, first seal cover can stretch out and draw back in the shell body and between the honeycomb duct lateral wall, honeycomb duct upper end periphery sets up the boss structure of circumference shape, elastomeric element's one end with boss structure butt, the other end with the upper end butt of shell body, the honeycomb duct is located boss structure's upper end and is provided with the check valve, the lower extreme of shower nozzle assembly with sealing connection between the check valve.

Further, comprising:

the shell body includes shell body and lower shell body, and the lower extreme setting of shower nozzle assembly is in last shell body, go up shell body and lower shell body fixed connection, the honeycomb duct cover is established in shell body down.

Further, comprising:

the honeycomb duct lower extreme is equipped with the joint portion of circumference shape, the lower extreme of first seal cover is fixed in the joint portion, the upper end of first seal cover is fixed go up the shell body with the combination department of shell body down.

Further, comprising:

the sprayer assembly comprises a nozzle component and an annular nozzle supporting rod, the nozzle component is mounted on the upper portion of the nozzle supporting rod, and a cavity for cleaning liquid to flow into is formed in the nozzle supporting rod.

Further, comprising:

go up the shell body and include joint flange and last barrel, the joint flange with shell body fixed mounting down, it is the annular to go up the barrel, and its diameter is greater than the diameter of nozzle branch pole.

Further, comprising:

the elastic component is arranged between the upper cylinder body and the nozzle supporting rod.

Further, comprising:

the lower outer shell comprises an opening part for cleaning fluid to enter and a lower cylinder body, the lower cylinder body is fixedly installed with the upper outer shell, and the first sealing sleeve is arranged between the lower cylinder body and the flow guide pipe.

Further, comprising:

the elastic component is a compression spring.

Has the advantages that: compared with the prior art, the utility model, it is showing the advantage and is: 1. the utility model adopts the sealing sleeve to realize the division between the upstream cavity and the downstream cavity of the one-way valve, and because the upper end and the lower end of the sealing sleeve can be firmly fixed in the spray-washing component, the technical problem of poor sealing effect caused by the piston type sealing element adopted by the traditional telescopic spray-washing component is overcome, thereby prolonging the service life and improving the cleaning efficiency; 2. the utility model discloses a compression spring and check valve subassembly realize the flexible function of spray rinsing subassembly, have simplified overall structure, and the equipment of being convenient for.

Drawings

FIG. 1 is a schematic view of the nozzle assembly of the present invention in an initial state;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic structural view of the nozzle assembly of the present invention in an open cleaning state;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

fig. 6 is a fluid trend diagram of the spray assembly of the present invention during cleaning.

Detailed Description

The retractable spray washer assembly for a vehicle headlamp according to the present invention will be described in further detail with reference to the accompanying drawings and examples.

Referring to fig. 1, a retractable spray washing assembly for washing a vehicle headlamp comprises a nozzle assembly 1, a cylindrical outer shell 2 connected with the nozzle assembly, a flow guide tube 3 arranged in the outer shell, and an elastic component 4 arranged in the outer shell, wherein a first sealing sleeve 5 is arranged around the outer side wall of the flow guide tube 3, the first sealing sleeve 5 can extend and retract between the outer shell 2 and the outer side wall of the flow guide tube 3, a circumferential boss structure 31 is arranged on the periphery of the upper end of the flow guide tube 3 to play a limiting role, a circumferential clamping part 32 is arranged on the periphery of the lower end of the flow guide tube, two ends of the first sealing sleeve 5 are respectively attached to the clamping part 32 and the boss structure 31, the lower end of the first sealing sleeve 5 is fixed in the clamping part 32, the upper end of the first sealing sleeve 5 is fixed at the joint of the upper outer shell 21 and the lower outer shell 22, that is, the first, when the water pressure is sufficient, the first sealing sleeve 5 contracts following the movement of the draft tube 3 under the action of the water pressure.

Further, the flow guide tube 3, the boss structure 31 and the clamping portion 32 can be integrally formed.

One end of the elastic component 4 is abutted to the boss structure 31, the other end of the elastic component is abutted to the upper end of the outer shell 2, the guide pipe is arranged at the upper end of the boss structure 31 and is provided with a one-way valve 6, a plurality of through holes are formed in the end portion of the one-way valve 6 along the circumference, the lower end of the spray head assembly 1 is in sealing connection with the one-way valve 6, a second sealing sleeve 61 is tightly sleeved on the outer side cylinder wall of the one-way valve 6, a certain threshold value is set for the one-way valve, when the bearing pressure of the one-way valve is greater than the threshold value.

In this embodiment, the elastic member 4 is a compression spring that can be expanded and contracted.

Referring to fig. 2 and 3, further, in this embodiment, the outer casing 2 includes an upper outer casing 21 and a lower outer casing 22, the lower end of the spray head assembly 1 is clamped in the upper outer casing 21, and the upper outer casing 21 and the lower outer casing 22 are fixedly connected. The upper and lower outer housings in this embodiment are oriented with respect to the nozzle and are not meant to be particularly limiting.

The draft tube 3 is sleeved in the lower outer shell 22. The lower outer shell 22 comprises an opening 221 for the entry of the cleaning solution and a lower cylinder 222, the lower cylinder 222 is fixedly mounted with the upper outer shell 21, the first sealing sleeve 5 is arranged between the lower cylinder 222 and the flow guide pipe 3, a first cavity 100 is formed in the lower cylinder 222, and a second cavity 200 is formed in the flow guide pipe 3.

The spray head assembly 1 comprises a spray nozzle component 11 and an annular spray nozzle supporting rod 12, the spray nozzle component 11 is installed on the spray nozzle supporting rod 12, the spray nozzle supporting rod 12 is inserted into the upper barrel 212 and can move upwards under the action of the flow guide pipe when the flow guide pipe moves upwards, and a third cavity 300 for cleaning liquid to flow into is arranged in the spray nozzle supporting rod 12.

Go up shell body 21 and include joint flange 211 and last barrel 212, joint flange 211 with shell body 22 fixed mounting down, go up barrel 212 and be the annular, its diameter is greater than the diameter of nozzle branch 12, elastomeric element 4 is arranged in go up between barrel 212 and nozzle branch 12. In the initial state, the spring is in a free state, when cleaning liquid enters the assembly from the opening part, under the pressure of the cleaning liquid, the guide pipe 3 and the first sealing sleeve 5 overcome the elastic force of the spring and the friction force between the sealing sleeve and the lower outer shell to move upwards.

The installation process comprises the following steps: install the check valve on boss structure earlier, establish first seal cover on the honeycomb duct, establish second seal cover on the check valve, and arrange in together in down in the shell body, elastomeric element arranges in and installs in last shell body from the lower extreme, and nozzle assembly from last shell body upper end and last shell body internal fixation cooperation, and then the shell body carries out the buckle can from top to bottom, and all fairly simple in installation and manufacturing.

And (3) cleaning: when in the initial position, the elastic component is in a free state; when cleaning liquid enters from the opening part, the second cavity of the flow guide pipe and the first cavity of the lower cylinder are filled with the cleaning liquid, the first sealing sleeve and the one-way valve positioned at the end part of the flow guide pipe block the circulation of fluid between the upper outer shell and the lower outer shell, so the cleaning liquid does not exist in the upper outer shell, at the moment, under the pressure action of the cleaning liquid, the flow guide pipe and the first sealing sleeve overcome the elasticity of the compression spring and the friction force between the first sealing sleeve and the inner wall of the lower outer shell to move upwards together, at the moment, the first sealing sleeve contracts, because the spring is abutted against the boss structure of the flow guide pipe, the nozzle supporting rod is close to the upper end of the one-way valve, the compression spring starts to compress under the action of water pressure, the nozzle supporting rod moves upwards, and under the sealing of the second sealing sleeve, the whole nozzle assembly, the compression spring reaches its limit or is near its compression limit where appropriate adjustments may be made to the threshold of the spring and the check valve.

The pressure of the cleaning liquid will continue to increase, when the pressure of the cleaning liquid is sufficient to overcome the pressure of the compression spring at this time, the check valve reaches its threshold, the check valve opens, the movement stops, and the working position shown in fig. 4 and 5 is maintained, so that the working circuit of the cleaning liquid inside the flow guide pipe is opened, and the cleaning liquid passes through the flow guide pipe at the lower end of the flow guide pipe and finally passes through the rear nozzle of the third cavity to be sprayed out for cleaning, as shown in fig. 6.

After the cleaning device finishes working, because the pressure of the cleaning liquid disappears, the compressed spring in the compressed state pushes the nozzle support rod to move downwards in the process of recovering to the free state, and because the lower end of the nozzle support rod is in sealing connection with the one-way valve positioned at the upper end of the flow guide pipe, the nozzle support rod moving downwards further pushes the flow guide pipe to move downwards, so that the flow guide pipe gradually retracts into the lower shell, meanwhile, the first sealing sleeve also gradually expands until the first sealing sleeve returns to the position shown in figure 1, and the working process of the whole cleaning device is finished.

Claims

1. A telescopic spray-washing component is characterized by comprising a spray head assembly (1), a cylindrical outer shell (2) connected with the spray head assembly (1), a guide pipe (3) arranged in the outer shell (2) and an elastic component (4) arranged in the outer shell (2), the outer side wall of the flow guide pipe (3) is provided with a first sealing sleeve (5) in a surrounding way, the first sealing sleeve (5) can extend and contract between the inner side of the outer shell (2) and the outer side wall of the flow guide pipe (3), an annular boss structure (31) is arranged on the periphery of the upper end of the draft tube (3), one end of the elastic component (4) is abutted with the boss structure (31), the other end is abutted with the upper end of the outer shell (2), the upper end of the guide pipe (3) positioned on the boss structure (31) is provided with a one-way valve (6), and the lower end of the spray head assembly (1) is hermetically connected with the one-way valve (6).

2. The telescopic spray assembly according to claim 1, wherein the outer housing (2) comprises an upper outer housing (21) and a lower outer housing (22), the lower end of the spray head assembly (1) is arranged in the upper outer housing (21), the upper outer housing (21) and the lower outer housing (22) are fixedly connected, and the guide pipe (3) is sleeved in the lower outer housing (22).

3. The telescopic spray-washing assembly according to claim 2, characterized in that the lower end of the flow guide tube (3) is provided with a circumferential clamping portion (32), the lower end of the first sealing sleeve (5) is fixed in the clamping portion (32), and the upper end of the first sealing sleeve (5) is fixed at the joint of the upper outer shell (21) and the lower outer shell (22).

4. The telescopic spray assembly according to claim 2, wherein the spray head assembly (1) comprises a nozzle assembly (11) and a cylindrical nozzle support rod (12), the nozzle assembly (11) is mounted on the upper portion of the nozzle support rod (12), and a cavity for the inflow of the cleaning liquid is arranged in the nozzle support rod (12).

5. The telescoping spray assembly of claim 4, wherein said upper outer housing (21) includes a snap flange (211) and an upper barrel (212), said snap flange (211) being fixedly mounted with said lower outer housing (22).

6. The telescoping spray assembly of claim 5, wherein said resilient member (4) is interposed between said upper cylinder (212) and nozzle strut (12).

7. The telescopic spray assembly according to claim 2, wherein the lower outer housing (22) comprises an opening (221) for the entry of the washing liquid and a lower cylinder (222), the lower cylinder (222) being fixedly mounted with the upper outer housing (21), the first sealing sleeve (5) being interposed between the lower cylinder (222) and the flow duct (3).

8. The telescopic spray assembly according to any one of claims 1 to 7, wherein the resilient member (4) is a compression spring.