阅读说明：本技术 一种油管压力平衡控制阀 (Oil pipe pressure balance control valve ) 是由 姚百顺 姚惠渊 姚书铭 凌毅斌 于 2019-10-16 设计创作，主要内容包括：本发明公开了一种油管压力平衡控制阀,包括控制阀体、平衡装置与减噪套,所述控制阀体内设有阀芯室,且其侧部设置有进气口,其底部设置有与阀芯室连通的出气口；所述平衡装置设置于阀芯室内,平衡装置包括导向杆、永磁体、阀芯与电磁装置,导向杆底部固定在阀芯室内且其顶部穿过进气口并延伸至进气口外；所述阀芯包括阀块一、阀块二、阀门三与阀块四,阀块一、阀块二、阀门三与阀块四由左至右依次活动套接在导向杆上,且阀块四上安装永磁体；所述电磁装置包括铁芯与通电线圈,铁芯外部缠绕通电线圈,且铁芯在通电线圈通电后与阀块四上安装的永磁体相斥。本发明结构简单,使用方便,可以起到压力调节控制作用。(The invention discloses an oil pipe pressure balance control valve, which comprises a control valve body, a balance device and a noise reduction sleeve, wherein a valve core chamber is arranged in the control valve body, the side part of the control valve body is provided with an air inlet, and the bottom of the control valve body is provided with an air outlet communicated with the valve core chamber; the balance device is arranged in the valve core chamber and comprises a guide rod, a permanent magnet, a valve core and an electromagnetic device, wherein the bottom of the guide rod is fixed in the valve core chamber, and the top of the guide rod penetrates through the air inlet and extends out of the air inlet; the valve core comprises a valve block I, a valve block II, a valve III and a valve block IV, the valve block I, the valve block II, the valve III and the valve block IV are sequentially and movably sleeved on the guide rod from left to right, and a permanent magnet is arranged on the valve block IV; the electromagnetic device comprises an iron core and an electrified coil, the electrified coil is wound outside the iron core, and the iron core repels the permanent magnet arranged on the valve block IV after the electrified coil is electrified. The invention has simple structure and convenient use and can play a role in pressure regulation and control.)

1. The oil pipe pressure balance control valve is characterized by comprising a control valve body (1), a balance device (2) and a noise reduction sleeve (3), wherein a valve core chamber (4) is arranged in the control valve body (1), an air inlet (5) is arranged on the side part of the control valve body, and an air outlet (7) communicated with the valve core chamber (4) is arranged at the bottom of the control valve body; the balance device (2) is arranged in the valve core chamber (4), the balance device (2) comprises a guide rod (21), a permanent magnet (22), a valve core (23) and an electromagnetic device (24), the bottom of the guide rod (21) is fixed in the valve core chamber (4), and the top of the guide rod (21) penetrates through the air inlet (5) and extends out of the air inlet (5); the valve core (23) comprises a first valve block (231), a second valve block (232), a third valve block (233) and a fourth valve block (234), the first valve block (231), the second valve block (232), the third valve block (233) and the fourth valve block (234) are sequentially movably sleeved on the guide rod (21) from left to right, and a permanent magnet (22) is installed on the fourth valve block (234); the electromagnetic device (24) comprises an iron core and an electrified coil, the electrified coil is wound outside the iron core, and the iron core repels a permanent magnet (22) arranged on the valve block IV (234) after the electrified coil is electrified.

2. The tubing pressure balance control valve of claim 1, wherein: noise reduction cover (3) set up outside control valve body (1), noise reduction cover (3) include inlayer noise reduction pad (31) and outer noise reduction pad (32), and are equipped with between inlayer noise reduction pad (31) and outer noise reduction pad (32) and hold chamber (6).

3. The tubing pressure balance control valve of claim 2, wherein: the noise reduction layer (61) is arranged in the containing cavity (6), the noise reduction layer (61) comprises an inner noise reduction layer (611), a middle noise reduction layer (612) and an outer noise reduction layer (613), and the inner noise reduction layer (611) comprises an inner liner plate and a flexible noise absorption material layer.

4. The tubing pressure balance control valve of claim 3, wherein: the middle noise reduction layer (612) comprises a middle liner plate and a flexible noise absorption material layer, and the outer noise reduction layer (613) comprises a middle and outer liner plate and a flexible noise absorption material layer.

5. The tubing pressure balance control valve of claim 1, wherein: and a control device is arranged outside the control valve body (1) and is connected with the electrified coil.

6. The tubing pressure balance control valve of claim 1, wherein: the first valve block (231), the second valve block (232), the third valve block (233) and the fourth valve block (234) are fixedly connected through a connecting plate (235), the radius of the third valve block (233) is the same as that of the air inlet (5), and the radius of the fourth valve block (234) is larger than that of the air inlet (5).

7. The tubing pressure balance control valve of claim 6, wherein: the radiuses of the first valve block (231) and the second valve block (232) are smaller than the radius of the air inlet (5), and the radius of the second valve block (232) is larger than the radius of the first valve block (231).

Technical Field

The invention relates to the field of pressure control valves, in particular to an oil pipe pressure balance control valve.

Background

The carbon tank is set up for adsorbing unnecessary fuel steam in the oil tank, and the carbon tank is inside to be filled by the very strong active carbon of adsorptivity, by the pipeline intercommunication between oil tank and the carbon tank, and the operating condition of carbon tank is controlled by carbon tank control valve. The working principle of the carbon tank control valve is that after an engine is shut down, gasoline vapor and fresh air are mixed in the carbon tank and stored in the activated carbon tank, after the engine is started, the control valve arranged between the carbon tank and the air inlet manifold is opened, and the gasoline vapor in the activated carbon tank is brought into the cylinder by clean air under the action of the vacuum degree of the air inlet pipe to participate in combustion. This reduces not only emissions, but also fuel consumption. With the stricter and stricter automobile emission regulations, the canister control valve has become one of the essential parts of gasoline vehicles.

Because gasoline is volatile, the saturated vapor pressure of the gasoline is high, the gasoline can reach 70KPa or even 1bar at high ambient temperature, the plastic fuel tank is easy to deform, and exhaust is needed in the process of refueling or working. In order to reduce the fuel vapor pressure in the fuel tank, a pressure control valve is installed at the top of the fuel tank, and the outlet of the pressure control valve is communicated with the carbon tank. When the fuel vapor in the fuel tank exceeds a certain pressure, the pressure control valve is opened, so that the fuel vapor in the tank body is continuously absorbed by the carbon tank, and the pressure in the fuel tank is reduced. Because the gasoline in the fuel tank is still continuously evaporated, after a period of time, the pressure reaches a certain pressure again, the pressure control valve is opened again, and the carbon tank absorbs the fuel vapor again, so that the pressure in the tank body is reduced.

The general pressure control valve provides corresponding pressure through the elastic force of the steel core part of the valve core, and the device can not adjust the pressure, namely, once the device is manufactured, the pressure range of the device is determined, and the use range is narrow.

Disclosure of Invention

The present invention is directed to a tubing pressure balance control valve, which solves the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: an oil pipe pressure balance control valve comprises a control valve body, a balance device and a noise reduction sleeve, wherein a valve core chamber is arranged in the control valve body, an air inlet is formed in the side part of the control valve body, and an air outlet communicated with the valve core chamber is formed in the bottom of the control valve body; the balance device is arranged in the valve core chamber and comprises a guide rod, a permanent magnet, a valve core and an electromagnetic device, wherein the bottom of the guide rod is fixed in the valve core chamber, and the top of the guide rod penetrates through the air inlet and extends out of the air inlet; the valve core comprises a valve block I, a valve block II, a valve III and a valve block IV, the valve block I, the valve block II, the valve III and the valve block IV are sequentially and movably sleeved on the guide rod from left to right, and a permanent magnet is arranged on the valve block IV; the electromagnetic device comprises an iron core and an electrified coil, the electrified coil is wound outside the iron core, and the iron core repels the permanent magnet arranged on the valve block IV after the electrified coil is electrified.

Preferably, the noise reduction cover sets up outside the control valve body, and the noise reduction cover includes inlayer noise reduction pad and outer noise reduction pad, and is equipped with between inlayer noise reduction pad and the outer noise reduction pad and holds the chamber.

Preferably, hold the intracavity and be provided with the noise reduction layer, the noise reduction layer includes inlayer noise reduction layer, middle level noise reduction layer and outer noise reduction layer, and wherein the inlayer noise reduction layer includes inlayer backing plate and flexible noise absorbing material layer.

Preferably, the middle noise reduction layer comprises a middle backing plate and a flexible noise absorption material layer, and the outer noise reduction layer comprises a middle and outer backing plate and a flexible noise absorption material layer.

Preferably, a control device is arranged outside the control valve body and is connected with the energizing coil.

Preferably, the first valve block, the second valve block, the third valve block and the fourth valve block are fixedly connected through connecting plates, the radius of the third valve block is the same as that of the air inlet, and the radius of the fourth valve block is larger than that of the air inlet.

Preferably, the radius of the first valve block and the radius of the second valve block are both smaller than the radius of the air inlet, and the radius of the second valve block is larger than the radius of the first valve block.

Compared with the prior art, the invention has the beneficial effects that:

the electromagnetic device and the permanent magnet generate repulsive force to push the valve core to move towards the air inlet along the guide rod, wherein the radiuses of the valve block I and the valve block II are both smaller than the radius of the air inlet, the radius of the valve block III is the same as the radius of the air inlet, the radius of the valve block IV is larger than the radius of the air inlet, and the valve block I, the valve block II, the valve block III and the valve block IV are pushed to be close to the air inlet by the repulsive force generated by the electromagnetic device and the permanent magnet, so that the pressure regulation control function is achieved; the noise reduction sleeve that sets up simultaneously cooperates the noise reduction layer that holds the intracavity, has avoided the noise of control valve at the during operation.

Drawings

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

fig. 2 is a schematic structural view of the noise reduction sleeve of the present invention.

In the figure: 1. a control valve body; 2. a balancing device; 21. a guide bar; 22. a permanent magnet; 23. a valve core; 231. a first valve block; 232. a second valve block; 233. a valve block III; 234. a valve block four; 24. an electromagnetic device; 3. a noise reduction sleeve; 31. an inner noise reduction pad; 32. an outer noise reduction pad; 4. a valve core chamber; 5. an air inlet; 6. an accommodating chamber; 61. a noise reduction layer; 611. an inner noise reduction layer; 612. a middle noise reduction layer; 613. an outer noise reduction layer; 7. and an air outlet.

Detailed Description

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

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-2, the present invention provides a technical solution: an oil pipe pressure balance control valve comprises a control valve body 1, a balance device 2 and a noise reduction sleeve 3, wherein a valve core chamber 4 is arranged in the control valve body 1, an air inlet 5 is arranged on the side part of the control valve body, and an air outlet 7 communicated with the valve core chamber 4 is arranged at the bottom of the control valve body; the balance device 2 is arranged in the valve core chamber 4, the balance device 2 comprises a guide rod 21, a permanent magnet 22, a valve core 23 and an electromagnetic device 24, the bottom of the guide rod 21 is fixed in the valve core chamber 4, and the top of the guide rod passes through the air inlet 5 and extends out of the air inlet 5; the valve core 23 comprises a first valve block 231, a second valve block 232, a third valve 233 and a fourth valve block 234, the first valve block 231, the second valve block 232, the third valve 233 and the fourth valve block 234 are sequentially movably sleeved on the guide rod 21 from left to right, and a permanent magnet 22 is arranged on the fourth valve block 234; the electromagnetic device 24 comprises an iron core and an energizing coil, the energizing coil is wound outside the iron core, and the iron core repels the permanent magnet 22 arranged on the valve block four 234 after the energizing coil is energized.

Noise reduction cover 3 sets up outside control valve body 1, and noise reduction cover 3 includes inlayer noise reduction pad 31 and outer noise reduction pad 32, and is equipped with between inlayer noise reduction pad 31 and the outer noise reduction pad 32 and holds chamber 6.

A noise reduction layer 61 is arranged in the accommodating cavity 6, and the noise reduction layer 61 comprises an inner noise reduction layer 611, a middle noise reduction layer 612 and an outer noise reduction layer 613, wherein the inner noise reduction layer 611 comprises an inner backing plate and a flexible noise absorption material layer.

The middle noise reduction layer 612 includes a middle backing plate and a flexible noise absorbing material layer, and the outer noise reduction layer 613 includes a middle and outer backing plate and a flexible noise absorbing material layer.

And a control device is arranged outside the control valve body 1 and is connected with the electrified coil.

The first valve block 231, the second valve block 232, the third valve 233 and the fourth valve block 234 are fixedly connected through a connecting plate 235, the radius of the third valve 233 is the same as that of the air inlet 5, and the radius of the fourth valve block 234 is larger than that of the air inlet 5.

The radius of the first valve block 231 and the radius of the second valve block 232 are both smaller than the radius of the air inlet 5, and the radius of the second valve block 232 is larger than the radius of the first valve block 231.

The working principle is as follows:

the valve core 23 of the invention comprises a first valve block 231, a second valve block 232, a third valve 233 and a fourth valve block 234, wherein the first valve block 231, the second valve block 232, the third valve 233 and the fourth valve block 234 are movably sleeved on a guide rod 21 from left to right in turn, a permanent magnet 22 is arranged on the fourth valve block 234, the current input of the electrified coil is controlled by the control device, the electrified coil is matched with the iron core to generate magnetism, the electromagnetic device 24 and the permanent magnet 22 generate repulsion force, so that the valve core 23 is pushed to move to the air inlet 5 along the guide rod 21, wherein the radiuses of the first valve block 231 and the second valve block 232 are both smaller than the radius of the air inlet 5, the radius of the third valve 233 is the same as the radius of the air inlet 5, the radius of the fourth valve block 234 is larger than the radius of the air inlet 5, repulsion force is generated by the electromagnetic device 24 and the permanent magnet 22 to push the first valve block 231, the second valve block 232, the third valve block 233 and the fourth valve block 234 to be close to the air inlet 5, so that the pressure regulation and control functions are achieved; noise reduction cover 3 that sets up simultaneously cooperates its noise reduction layer 61 that holds in the chamber 6, has avoided the noise of control valve during operation.

It is worth noting that: the whole device is controlled by the master control button, and the equipment matched with the control button is common equipment, so that the device belongs to the existing well-known technology, and the electrical connection relation and the specific circuit structure of the device are not repeated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.