CN102777648B - Flow limiting shutoff valve - Google Patents

Flow limiting shutoff valve Download PDF

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Publication number
CN102777648B
CN102777648B CN 201210199191 CN201210199191A CN102777648B CN 102777648 B CN102777648 B CN 102777648B CN 201210199191 CN201210199191 CN 201210199191 CN 201210199191 A CN201210199191 A CN 201210199191A CN 102777648 B CN102777648 B CN 102777648B
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valve
flow
piston
shut
inlet
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CN 201210199191
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Chinese (zh)
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CN102777648A (en
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高大勇
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珠海爱迪生节能科技有限公司
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Abstract

本发明涉及一种流量限制截流阀,包括流量截止阀和截断阀。 The present invention relates to a shut-off valve limiting the flow, includes a flow shut-off valve and the shut-off valve. 所述流量截止阀包括阀体、活塞和偏压部件。 The flow shut-off valve comprises a valve body, a piston and a biasing member. 所述阀体上成型有通腔,所述通腔的出水口设有密封座;所述活塞可轴向往返移动地设置在所述通腔内,所述活塞的相应外壁、所述通腔的内壁以及所述密封座之间配合形成一中间腔,所述活塞上成型有预设通流面积的导流通孔,所述中间腔通过所述导流通孔与所述进水口连通。 The valve body has a through-shaped chamber, through the outlet chamber is provided with a sealing seat; said piston to reciprocate axially disposed through the outer wall of the respective cavity, said piston, said through cavity fit is formed between the inner wall of the intermediate chamber a sealing seat, with a predetermined flow area of ​​the guide flow hole formed on the piston, the intermediate chamber communicating with the inlet flow by the guide hole. 所述活塞的朝向所述密封座的一端设有密封件,在所述进水口的流量小于预设值时,所述密封件与所述密封座分离;在所述进水口的流量大于预设值时,所述活塞上的所述密封件与所述密封座接触密封;当所述截断阀关闭时,可以实现所述活塞的自动复位。 Said piston toward said one end sealing member sealing seat is provided, when the inlet flow is less than a predetermined value, the sealing member is separated from the sealing seat; the flow rate of the water inlet is greater than a preset value, the upper piston seal contacts said seal with said sealing seat; when the cutoff valve is closed, can automatically reset the piston.

Description

一种流量限制截流阀 A flow restriction shut-off valve

技术领域 FIELD

[0001] 本发明涉及一种阀体装置,具体涉及一种流量限制截流阀。 [0001] The present invention relates to a valve apparatus, particularly relates to a shut-off valve limiting the flow rate.

背景技术 Background technique

[0002] 随着社会经济发展和能源的日益紧缺,尤其是在水资源严重匮乏的今天,人们对水资源利用的最大化、便利化和安全化有了更高的要求。 [0002] With the increasing scarcity of social and economic development and energy, especially in the severe water scarcity today, people maximize utilization of water resources, security and facilitation of higher demand. 在实际的日常生活中,水管、水龙头等设备处因为长期频繁使用而容易发生突发性损坏,常常导致大股水流源源不断地外流而造成水资源的浪费,现有技术中,对于水管、水龙头等设备的突发性损坏,往往是通过人工关闭水管上的总闸来补救,而由于发现水龙头损坏到关闭总闸需要一定的反应时间,特别是,当事故发生时没有人在现场控制时,不仅容易造成水资源的极大浪费而且还会由于溢出的水淹没家庭的地板、家具等用品,而给用户造成一定程度的财产损失,情况严重的,甚至还会溢流波及到周围的住户,后果将更加严重。 In the actual daily life, water pipes, faucets and other equipment at the long-term because of the frequent use of prone to sudden damage, often resulting in a large stream of water flows freely and cause waste of water resources, in the prior art, for pipes, faucets other unexpected damage to the equipment often be remedied by doing so the total gate closing the pipe, and the discovery of damage to shut off the tap shutter requires a certain reaction time, in particular, no one in the scene control when an accident occurs, only likely to cause great waste of water resources but also due to the overflowing water flooded the family flooring, furniture and other supplies, to some extent, caused property damage to the user, in serious cases, may even overflow spread to surrounding residents, the consequences will be more serious.

[0003] 中国专利文献CN2937705Y公开了一种限压断水阀,其包括一外壳,以及在外壳上设置的出水口和入水口,在所述出水口和入水口之间设置有限压断水结构,该限压断水结构包括:一连杆,可沿一通道形成位移,并连接有一封堵件,该封堵件设置在一封堵腔内,随同所述连杆的位移可封堵所述出水口与入水口之间的水流通道;一弹性件,设置在所述连杆与所述外壳之间,用于在低于预定水压时,支撑所述连杆自动处于使所述封堵件保持所述水流通道畅通的位置。 [0003] Chinese patent CN2937705Y discloses a pressure limiting valve off, comprising a housing, a water outlet and disposed on the housing and the inlet, the outlet and disposed between the pressure-limiting structure without water inlet, the without water pressure limiting structure comprising: a linkage, may be formed along a displacement path, and is connected to a closure member, the closure member is provided at a cavity block, the displacement along the link can be plugged outlet and the flow passage between the outlet; an elastic member disposed between the rod and the housing, below the predetermined pressure for supporting the link is enabled automatically holding said closure member the water flow passage position. 此限压断水阀在所述连杆与所述外壳之间设置有止复结构,能够在水压过大造成减压阀被损坏时,截断并保持封堵状态,防止未经减压的水流直接流向终端设备而引起对终端设备的破坏,因此,设置此限压断水阀的目的是要在水压过大的情况下自动截断水流,但是发生断流后,由于止复结构的作用,封堵件无法自动复位,因此,使用非常不便。 This breaking pressure limiting valve between the rod and the housing is provided with a double locking configuration, when the relief valve is caused by too much damaged, cut and remains blocked state, without the reduced pressure in the water to prevent water pressure flows directly to the terminal equipment causing damage to the terminal device, therefore, set off this pressure limiting valve to automatically cut off the object under the water pressure is too large, but after the disconnection occurs due to the complex structure of the stopper, seal blocking parts can not be reset automatically, so use very inconvenient.

发明内容 SUMMARY

[0004] 为了解决现有技术中的断水阀在发生断流后封堵件无法自动复位的技术问题,本发明提供了一种在发生断流后能够自动复位的流量限制节流阀。 [0004] In order to solve the technical problems of the prior art occurs after current breaking off valve closure member can not be automatically reset, the present invention provides a flow of the latter occur stop automatically reset limit throttle.

[0005] 本发明所述的流量限制截流阀的技术方案为: [0005] The flow rate of the shut-off valve to limit the invention to the technical solution:

[0006] 一种流量限制截流阀,包括一进水口处水流量大于预设值时,能够自动截断水流的流量截止阀,所述流量截止阀包括 [0006] A flow restriction when the shut-off valve, comprising a feed water flow rate at the outlet is greater than the predetermined value, the valve can be automatically cut off the flow of water, the flow shut-off valve comprising

[0007] 阀体,所述阀体上成型有通腔,所述通腔包括进水口和出水口,所述通腔的出水口设有密封座; [0007] The valve body, the valve body formed with a through cavity through said chamber comprises a water inlet and a water outlet, said outlet chamber through a sealing seat;

[0008] 活塞,所述活塞可轴向往返移动地设置在所述通腔内,且处于所述通腔的进水口与所述出水口之间,所述活塞的相应外壁、所述通腔的内壁以及所述密封座之间配合形成一中间腔,所述活塞上成型有预设通流面积的导流通孔,所述中间腔通过所述导流通孔与所述进水口连通。 [0008] a piston arranged to reciprocate axially within the through cavity, and is, between the respective outer wall of the piston chamber through said inlet and said outlet, said through cavity fit is formed between the inner wall of the intermediate chamber a sealing seat, with a predetermined flow area of ​​the guide flow hole formed on the piston, the intermediate chamber communicating with the inlet flow by the guide hole. 所述活塞的朝向所述密封座的一端设有密封件,在所述进水口的流量小于预设值时,所述密封件与所述密封座分离,所述中间腔通过所述密封件和所述密封座之间所形成的间隙与所述出水口相通;在所述进水口的流量大于预设值时,所述活塞在液压力的推动下朝所述密封座方向移动,直至所述活塞上的所述密封件与所述密封座接触密封,截断水流; Said piston toward said one end sealing member sealing seat is provided, when the inlet flow is less than a predetermined value, said seal and said seal housing separating the intermediate chamber through the seal and a gap formed between the seal housing in communication with said outlet; when the inlet flow is greater than a predetermined value, the piston moves driven by hydraulic pressure toward the direction of the sealing seat until the the seal on the piston in contact with the sealing seat seal, cut water;

[0009] 偏压部件,所述偏压部件设置在所述活塞靠近所述通腔进水口的一端与所述密封座之间; [0009] The biasing member, said biasing member disposed between said one end of said piston adjacent to the sealing seat through the inlet chamber;

[0010] 还包括一截断阀,所述截断阀的出水口与所述流量截止阀的进水口连通,当所述截断阀关闭时,外界压力与所述偏压部件的复位力之和大于所述截断阀出水口与所述流量截止阀进水口之间的液压力,实现所述活塞的复位。 [0010] further comprises a shut-off valve, the cut-off inlet valve and the outlet valve communicating said flow cutoff, when the cutoff valve is closed, the restoring force of the biasing member and the external pressure is greater than the said cutoff valve and said flow outlet shut-off valve between the nozzle inlet pressure, the resetting of the piston.

[0011] 上述流量限制截流阀,所述密封件与所述密封座接触的表面上,两个至少有一个设置有凸起或凹进的图案或花纹。 [0011] The shut-off valve limiting the flow rate, the upper surface of the sealing member in contact with the sealing seat, with at least two is provided with a convex or concave pattern or patterns.

[0012] 上述流量限制截流阀,所述流量截止阀的出水口处设有一中空的转接头组件,所述密封座由所述转接头组件插入所述出水口的一端形成,所述流量截止阀通过所述转接头组件与外界管道连接。 [0012] The shut-off valve limiting the flow rate, the flow rate at the outlet of the shut-off valve is provided with a hollow adapter assembly, said sealing seat at one end by the adapter assembly is inserted into the water outlet is formed, the flow shut-off valve connected to the outside through the pipe adapter assembly.

[0013] 上述流量限制截流阀,所述活塞包括直径较大的头部和直径较小的尾部,所述头部适合沿所述通腔内壁滑动,且所述头部上成型有预设通流面积的节流通孔;所述尾部上设置有密封件。 [0013] The flow restriction shutoff valve, said piston tail comprises a smaller diameter and a larger diameter head portion, said head portion for sliding along the inner wall of the through cavity and has a predetermined pass on the forming head passage orifice flow area; is provided with a seal on the tail.

[0014] 上述流量限制截流阀,所述活塞的所述尾部的端面上还设有一端伸入所述转接头组件6内的导向杆。 [0014] The shut-off valve limiting the flow, the tail end face of the piston rod end is also provided with a guide 6 extending into said inner rotation joint assembly.

[0015] 上述流量限制截流阀,所述转接头组件插入所述通腔内的一端端面上还成型有环形凹槽,所述偏压部件为一端套设在所述活塞尾部,另一端设置在所述凹槽内的弹簧。 [0015] The shut-off valve limiting the flow rate, the adapter assembly is inserted through a surface of the cavity end to end is also formed with an annular groove, one end of the biasing member is a sleeve disposed in the piston tail, disposed at the other end spring within the groove.

[0016] 上述流量限制截流阀,所述截断阀为球阀。 [0016] The shut-off valve limiting the flow rate, the shut-off valve is a ball valve.

[0017] 本发明的上述技术方案相比现有技术具有以下优点: [0017] The technical solution of the present invention has the following advantages over the prior art:

[0018] 本发明提供的流量限制截流阀不仅能够实现在正常使用时,让水流自由通过,同时还能够实现在水管或水龙头处发生突发性损坏时,能够自动截断水流,更重要的是流量截止阀能够自动复位,仅需关闭截断阀,当流量截止阀由截断状态变为开启状态时,就能够使流量截止阀内的活塞在弹簧、以及外界压力的作用下自动复位,使用非常方便。 [0018] The present invention provides a flow rate limit shut-off valve can be realized not only in normal use, allow free passage of water, but can also be implemented in the event of sudden damage to the pipes or the faucet, water can be automatically cut off, the flow rate is more important shut-off valve can be automatically reset, shut-off valve is only closed when the shut-off valve of the flow cutoff state to the oN state, the flow rate can be automatically shut-off piston resetting action of the spring, and the external pressure in the valve, very convenient to use.

附图说明 BRIEF DESCRIPTION

[0019] 为了使本发明的内容更加便于理解,下面将结合附图和具体实施方式对本发明的内容做进一步的阐述。 [0019] In order to make the present invention easier to be understood in conjunction with the accompanying drawings and the following specific embodiments further elaboration of the present invention. 其中图1至图5中的活塞具有较大的头部和较小的尾部,导流通孔在所述活塞的头部上,不带拐点。 Figures 1 to 5 wherein a piston head portion having a larger and a smaller tail guide passage hole on the head of the piston, with no inflection point.

[0020] 图1是本发明流量限制截流阀实施例1的装配图。 [0020] FIG. 1 is a flow shut-off valve assembly of the present invention be limited example of FIG. 1 embodiment.

[0021] 图2是本发明流量限制截流阀实施例1在流量未超过预设值时水的流通示意图。 [0021] FIG. 2 is a flow shut-off valve to limit the invention Example 1 a schematic view of the flow of water at a preset flow rate value does not exceed embodiment.

[0022] 图3是本发明流量限制截流阀实施例1在流量未超过预设值时水的流通示意图的局部放大图。 [0022] FIG. 3 is a flow shut-off valve to limit the present invention, a water circulation schematic partial enlarged view of the flow rate value does not exceed the preset embodiment.

[0023] 图4是本发明流量限制截流阀实施例1在流量超过预设值的密封示意图。 [0023] FIG. 4 is a flow shut-off valve to limit the present invention in a schematic view of a seal according to the flow rate exceeds a preset value 1 embodiment.

[0024] 图5是本发明流量限制截流阀实施例1在流量超过预设值的密封示意图的局部放大图。 [0024] FIG. 5 is a flow shut-off valve to limit the present invention a partial enlarged schematic view of the seal of FIG. 1 in the flow rate exceeds a preset value according to embodiment.

[0025] 图6是本发明的流量限制截流阀实施例2在流量未超过预设值时水的流通示意图。 [0025] FIG. 6 is a flow shut-off valve to limit the present invention 2 is a schematic embodiment of the water flow at the flow rate value does not exceed the preset embodiment.

[0026] 附图标记为:1-球阀、2-阀体、3-活塞、4-密封件、5-弹簧、6_转接头组件、7_ (阀体)进水口、8-(阀体)出水口、9-导流通孔、10-导向杆、11-凹槽、12-(球阀)出水口、13-中间腔。 [0026] reference numerals as: 1- ball, valve 2-, 3- piston seal 4-, 5- springs, 6_ adapter assembly, 7_ (valve) inlet, 8- (valve element) outlet, the flow guide hole 9-, 10- guide bar, 11 the grooves, 12 (ball valve) outlet, 13 the intermediate chamber.

具体实施方式 Detailed ways

[0027] 实施例1 [0027] Example 1

[0028] 如图1所示,本实施例的一种流量限制截流阀,包括一进水口处水流量大于预设值时,能够自动截断水流的流量截止阀和一球阀I。 [0028] As shown in FIG 1, the present embodiment A flow limiting embodiment shut-off valve, comprising a feed water flow rate at the outlet is greater than the predetermined value, it is possible to automatically cut off the water flow shut-off valve and a ball valve I.

[0029] 所述流量截止阀包括阀体2、活塞3和弹簧5,所述阀体上成型有通腔,所述通腔包括进水口7和出水口8,所述通腔的出水口8设有密封座;所述活塞3可轴向往返移动地设置在所述通腔内,且处于所述通腔的进水口7与所述出水口8之间,所述活塞3的相应外壁、所述通腔的内壁以及所述密封座之间配合形成一中间腔13,所述活塞3包括直径较大的头部和直径较小的尾部,所述头部适合沿所述通腔内壁滑动,且所述头部上成型有预设通流面积的导流通孔9,所述中间腔13通过所述导流通孔9与所述进水口7连通;所述尾部的端面上还设有一端伸入所述转接头组件6内的导向杆10,所述活塞3的尾部上设有密封件4,所述密封件用来与所述密封座接触的表面上设置有凸起的花纹;所述弹簧5设置在所述活塞3的所述头部与所述密封座之间,一端套设在所述活塞3尾部,另 [0029] The flow shut-off valve comprises a valve body 2, the piston 5 and the spring 3, with a through cavity formed on said valve body, said through cavity comprises inlet 7 and outlet 8, through the outlet chamber 8 a sealing seat; the piston 3 reciprocates axially disposed between said through cavity and in the cavity through the inlet 7 and outlet 8, a respective outer wall 3 of the piston, with an intermediate chamber 13 formed between the inner wall of said seal housing through the chamber, the piston 3 comprises a larger diameter head portion of smaller diameter and a tail portion, said head portion for sliding along the inner wall of the through cavity and said predetermined flow area formed with the flow guide hole on the head 9, the intermediate chamber 13 communicating through the guide flow hole 9 and the inlet 7; an end face of said tail end is further provided said guide extending into the adapter 10 assembly 6, on the tail of the piston 3 is provided with a sealing member 4, the sealing member is provided with a raised pattern to the surface in contact with said seal housing; the said spring 5 is disposed between the piston head 3 and the sealing seat, one end of the piston sleeve disposed in the tail 3, the other 端设置在所述转接头组件6插入所述阀体通腔内的一端端面上而形成的环形凹槽11内。 End disposed within said rotary joint assembly 6 is inserted into the body cavity through a surface of the end to end to form an annular groove 11.

[0030] 在流量未超过预设值时,如图2和图3所示,所述密封件4与所述密封座分离,所述中间腔13通过所述密封件4和所述密封座之间所形成的间隙与所述出水口相通。 [0030] When the flow rate does not exceed the predetermined value, as shown in FIGS. 2 and 3, the sealing member 4 is separated from the sealing seat, the intermediate chamber 13 through the sealing member 4 and the sealing seat of the gap between said outlet formed with communication. 水通过球阀I流入阀体2的进水口,然后冲击活塞3并主要沿活塞3上的导流通孔9和中间腔13流出后流入阀体2出水口,再通过转接头组件6的水流通道流出,此时弹簧5起到抵住活塞3的作用,防止与活塞3 —起运动的密封件4与转接头组件6接触,进而使水顺利流通。 Water flows through the ball valve element inlet I 2, and 3 and 9 and the percussion piston flows into the intermediate chamber 13 after the outlet valve 2 flows mainly along the guide flow hole on the piston 3, and then flows out through the water channel adapter assembly 6 , this time against the action of the spring 5 the piston 3 functions to prevent the piston 3--4 contacting 6 with adapter seal assembly movement, thereby enabling the smooth flow from the water.

[0031] 在上述的实施例中,作为可选择的实施方式,可以使密封件表面保持光滑,而在所述密封座用来与所述密封件接触的表面上设置凸起或者凹进的花纹或图案;也可以在密封座的接触面和密封座的接触面上同时设置凸起或者凹进的花纹或图案。 [0031] In the above embodiment, as an alternative embodiment, the sealing member can be maintained smooth surface, and the sealing seat is provided for the projection or recess pattern on the surface in contact with the sealing member or pattern; may be simultaneously provided protrusions or recesses of the patterns or designs on the contact surface and the contact surface of the sealing seat of the sealing seat.

[0032] 当水管或水龙头处发生突发性损坏时,通过球阀I以及流量截止阀的流量会突然增大,当通过的流量超过预设值时,如图4和图5所示,由于活塞3上的导流通孔9的通流面积有限,即单位时间内允许通过的流量是有限制的,因此,进水口处未来得及通过的大量液体将克服弹簧5的弹力,推动着活塞3往密封座方向移动,直至所述活塞3上的所述密封件4与所述密封座接触密封,进而截断水流。 [0032] When the occurrence of sudden damage to the pipes or the faucet, the flow rate and the flow I through a ball valve shut-off valve suddenly increases when the flow rate exceeds a preset value by, as shown in FIGS. 4 and 5, since the piston guide flow hole 3 a limited flow area 9, i.e., the unit of time to allow traffic is limited, therefore, a large amount of liquid water inlet is not enough time by will overcome the force of the spring 5 push the piston 3 to seal seat direction, until the piston seal member 3 on the seal 4 in contact with the sealing seat, and then cut the water flow.

[0033] 在流量超过预设值而使水流被截断后,关闭球阀1,此时在阀体2内部保持原有水压,当外界压力与弹簧5的复位力之和大于所述截断阀出水口12与所述流量截止阀进水口7之间的液压力时,活塞被推动朝远离密封座的方向移动,从而导致密封件4与密封座分离而实现活塞的复位,流量截止阀开启。 [0033] than the preset value after the flow rate of water flow is cut off, close the ball valve 1, this time to maintain the original water pressure inside the valve body 2, when the ambient pressure restoring force of the spring 5 is larger than the cutoff valve and the when the nozzle 12 with the flow rate shut-off valve between the pressure fluid inlet 7, the piston is pushed away from the sealing seat in the direction of movement, resulting in seal 4 and the sealing seat separation of the resetting of the piston, the flow shut-off valve open. 此时,可以更换破损的水管或水龙头,更换好后,打开球阀1,本发明的流量限制截流阀又能够正常使用,非常方便。 In this case, replacement of damaged pipes or the faucet, after replacement, open the ball valve 1, the present invention is to limit the flow rate shut-off valve and the normal use, very convenient.

[0034] 实施例2 [0034] Example 2

[0035] 作为可选择的实施方式,所述活塞3还可以设置成头部和尾部的直径相同的圆筒状结构,同时,导流通孔9可以设置为带有拐点,如图6所示。 [0035] As an alternative embodiment, the piston 3 may also be set to the same diameter of the head and tail of the cylindrical structure, while the guide passage hole 9 may be provided with an inflection point as shown in FIG. 6.

[0036] 显然,上述实施例仅仅是为清楚地说明所作的举例,而并非对实施方式的限定。 [0036] Clearly, the above-described embodiments are merely made to clearly illustrate example, and not limited to the embodiment. 对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动。 Those of ordinary skill in the art, on the basis of the above described variations or changes may be made in various other forms. 这里无需也无法对所有的实施方式予以穷举,而由此所引伸出的显而易见的变化或变动仍处于本发明的保护范围之中。 It is unnecessary and can not be exhaustive of all embodiments, and obvious variations or changes thus the corollary is still in the scope of the present invention.

Claims (6)

1.一种流量限制截流阀,其特征在于,包括一进水口处水流量大于预设值时,能够自动截断水流的流量截止阀,所述流量截止阀包括阀体(2),所述阀体上成型有通腔,所述通腔包括进水口(7)和出水口,所述通腔的出水口(8)设有密封座; 活塞(3),所述活塞(3)可轴向往返移动地设置在所述通腔内,且处于所述通腔的进水口(7)与所述出水口(8)之间,所述活塞(3)的相应外壁、所述通腔的内壁以及所述密封座之间配合形成一中间腔(13),所述活塞(3)上成型有预设通流面积的导流通孔(9),所述中间腔(13)通过所述导流通孔(9)与所述进水口(7)连通,所述活塞(3)的朝向所述密封座的一端设有密封件(4),在所述进水口(7)的流量小于预设值时,所述密封件(4)与所述密封座分离,所述中间腔(13)通过所述密封件(4)和所述密封座之间所形成的间隙与所述出水口相通;在所述进水口 A shut-off valve limiting the flow, characterized by comprising a water inlet at a flow rate greater than a predetermined value, the valve can be automatically cut off the flow of water, the flow shut-off valve includes a valve body (2), said valve the molded body has a through lumen, through said chamber comprises a water inlet (7) and a water outlet, through the chamber outlet (8) is provided with a sealing seat; a piston (3), the piston (3) axially disposed between a reciprocating manner through the chamber and through the lumen in said inlet (7) and the outlet (8), a respective outer wall of the piston (3), the inner wall of the through cavity and cooperate to form an intermediate chamber (13) between said seal seat, said piston (3) is molded preset flow guide holes (9), said intermediate chamber (13) flow area through said flow guide holes (9) and the inlet (7) communicating, toward said piston (3) the end of the sealing seat is provided with a seal (4), the inlet (7) is less than the predetermined flow rate value when the sealing member (4) is separated from the sealing seat, said intermediate chamber (13) through a gap formed between said sealing member (4) and the sealing seat in communication with said outlet; in the inlet (7)的流量大于预设值时,所述活塞(3)在液压力的推动下朝所述密封座方向移动,直至所述活塞上的所述密封件(4)与所述密封座接触密封,截断水流; 偏压部件,所述偏压部件设置在所述活塞(3)靠近所述通腔进水口(7)的一端与所述密封座之间; 还包括一截断阀,所述截断阀的出水口(12)与所述流量截止阀的进水口(7)连通,当所述截断阀关闭时,外界压力与所述偏压部件的复位力之和大于所述截断阀出水口(12)与所述流量截止阀进水口(7)之间的液压力,实现所述活塞(3)的复位,所述密封件与所述密封座接触的表面上,两个至少有一个设置有凸起或凹进的图案或花纹。 (7) the flow is greater than a preset value, the piston (3) moves in the direction of the sealing seat under the pressure of the driving fluid, until the seal on the piston (4) in contact with said seal housing seal, cut water; biasing member, said biasing member disposed between the piston (3) adjacent to the chamber through inlet (7) one end of said seal housing; further comprising a shut-off valve, the the shut-off valve outlet (12) and the shut-off valve in the flow inlet (7) communicating, when the cutoff valve is closed, the restoring force of the biasing member and the external pressure is greater than the cutoff valve outlet (12) and the flow rate of the hydraulic pressure cut-off valve between the inlet (7), to achieve the piston (3) is reset, the upper surface of said seal member in contact with the sealing seat, is provided with at least one two there convex or concave pattern or patterns.
2.根据权利要求1所述的流量限制截流阀,其特征在于,所述流量截止阀的出水口(8)处设有一中空的转接头组件(6),所述密封座由所述转接头组件(6)插入所述出水口(8)的一端形成,所述流量截止阀通过所述转接头组件(6)与外界管道连接。 The flow restriction of the shut-off valve according to claim 1, characterized in that the flow rate at the outlet of the shut-off valve (8) is provided with a hollow adapter assembly (6), said adapter from said sealing seat an end assembly (6) is inserted into the water outlet (8) forming the flow duct shut-off valve connected to the outside through said adapter assembly (6).
3.根据权利要求2所述的流量限制截流阀,其特征在于,所述活塞(3)包括直径较大的头部和直径较小的尾部,所述头部适合沿所述通腔内壁滑动,所述导流通孔(9 )成型在所述活塞的头部;所述密封件(4)设置在所述尾部上。 Claimed in claim 2, limits flow rate of the shut-off valve, characterized in that the piston (3) comprises a tail portion of smaller diameter and larger diameter head portion, said head portion for sliding along the inner wall of the through cavity the guide passage hole (9) formed in the piston head portion; said seal member (4) disposed on the tail.
4.根据权利要求3所述的流量限制截流阀,其特征在于,所述活塞(3)的所述尾部的端面上还设有一端伸入所述转接头组件(6)内的导向杆(10)。 Flow restriction according to claim shut off valve of claim 3, wherein the tail end face of the piston (3) is further provided in an end of the guide rod into said adapter assembly (6) ( 10).
5.根据权利要求4所述的流量限制截流阀,其特征在于,所述转接头组件(6)插入所述通腔内的一端端面上还成型有环形凹槽(11),所述偏压部件为一端套设在所述活塞(3)尾部,另一端设置在所述凹槽(11)内的弹簧(5)。 The flow according to claim 4 limit shut-off valve, wherein said adapter assembly (6) into the cavity through a surface of the end to end is further formed with an annular groove (11), said biasing One end of sleeve member is disposed in the piston (3) tail, the other end of the spring disposed in the groove (5) in (11).
6.根据权利要求1所述的流量限制截流阀,其特征在于,所述截断阀为球阀(I)。 6. The flow restriction according to claim 1, the shutoff valve, wherein the cutoff valve is a ball valve (I).
CN 201210199191 2012-06-14 2012-06-14 Flow limiting shutoff valve CN102777648B (en)

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CN103322256B (en) * 2013-06-28 2016-06-29 珠海爱迪生智能家居股份有限公司 One kind of shut-off valve limiting the flow stabilization
CN103511696B (en) * 2013-09-23 2016-07-13 北京航天动力研究所 One kind can automatically reset and zero leakage through the valve

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