CN205559395U - Hydraulic one -way valve - Google Patents
Hydraulic one -way valve Download PDFInfo
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- CN205559395U CN205559395U CN201620114117.7U CN201620114117U CN205559395U CN 205559395 U CN205559395 U CN 205559395U CN 201620114117 U CN201620114117 U CN 201620114117U CN 205559395 U CN205559395 U CN 205559395U
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Abstract
本实用新型液控单向阀涉及一种单向阀。其目的是为了提供一种易于维修的液控单向阀。本实用新型包括：阀体；阀体包括进油口、出油口和控制油口，于出油口处安装有快接插头；快接插头包括左腔、右腔和阀芯；快接插头的右腔与阀体的进油口相连通；阀芯包括全开工位和全关工位，当阀芯处于全开工位时，快接插头的左腔和右腔相连通，当阀芯处于全关工位时，快接插头的左腔和右腔彼此隔离；于阀体的出油口内、快接插头右侧设置有移动活塞，移动活塞将控制油口和出油口完全隔离；移动活塞包括左工位和右工位，当移动活塞处于左工位时，移动活塞将阀芯推向全开工位，当移动活塞处于右工位时，阀芯受进油口处油压的影响在全开工位、全关工位之间切换。
The utility model relates to a hydraulically controlled one-way valve, which relates to a one-way valve. Its purpose is to provide a hydraulic control check valve which is easy to maintain. The utility model comprises: a valve body; the valve body includes an oil inlet, an oil outlet and a control oil port, and a quick-connect plug is installed at the oil outlet; the quick-connect plug includes a left chamber, a right chamber and a valve core; the quick-connect plug The right cavity of the valve body is connected with the oil inlet of the valve body; the valve core includes a fully open position and a fully closed position. When the valve core is in the fully open position, the left cavity and the right cavity of the quick-connect plug are connected. When the position is fully closed, the left chamber and the right chamber of the quick-connect plug are isolated from each other; a moving piston is arranged in the oil outlet of the valve body and on the right side of the quick-connect plug, and the moving piston completely isolates the control oil port and the oil outlet; The piston includes a left station and a right station. When the moving piston is in the left station, the moving piston pushes the spool to the fully open station. When the moving piston is in the right station, the spool is affected by the oil pressure at the oil inlet. Switch between fully open and fully closed positions.
Description
技术领域technical field
本实用新型涉及一种液控阀。The utility model relates to a hydraulic control valve.
背景技术Background technique
液控单向阀是依靠控制流体压力，可以使单向阀反向流通的阀。这种阀在煤矿机械的液压支护设备中占有较重要的地位。控单向阀与普通单向阀不同之处是多了一个控制油路K，当控制油路未接通压力油液时，液控单向阀就象普通单向阀一样工作，压力油只从进油口流向出油口，不能反向流动。当控制油路有控制压力输入时，活塞顶杆在压力油作用下向右移动，用顶杆顶开单向阀，使进出油口接通。若出油口大于进油口就能使油液反向流动。The hydraulic control check valve is a valve that can reverse the flow of the check valve by controlling the fluid pressure. This kind of valve occupies a more important position in the hydraulic support equipment of coal mine machinery. The difference between the control check valve and the ordinary check valve is that there is an additional control oil circuit K. When the control oil circuit is not connected to the pressure oil, the hydraulic control check valve works like an ordinary check valve, and the pressure oil only Flow from the oil inlet to the oil outlet, not reverse flow. When the control oil circuit has control pressure input, the piston push rod moves to the right under the action of the pressure oil, and the one-way valve is opened by the push rod to connect the oil inlet and outlet. If the oil outlet is larger than the oil inlet, the oil can flow in reverse.
中国专利CN202510139U公开了一种液控单向阀，该液控单向阀包括阀体，阀体上形成有左、右两个腔体，所述左腔体上从上向下依次设置有第一端套、第一端套接头、第一大顶杆、第一弹簧、第一中间套、第一阀座、第一阀芯组件、第一小顶杆、第二弹簧与第一阀套，所述右腔体上从左向右依次设置有第二端套、第二端套接头、第二大顶杆、第三弹簧、第二中间套、第二阀座、第二阀芯组件、第二小顶杆、第四弹簧与第二阀套。为了实现液压控制，该公开技术单独设计了用于安装阀芯的小孔，也正是基于此原因，该液控单向阀体积较大，结构较为复杂。Chinese patent CN202510139U discloses a hydraulically controlled one-way valve. The hydraulically controlled one-way valve includes a valve body. There are two left and right cavities formed on the valve body. One end sleeve, the first end sleeve joint, the first large ejector rod, the first spring, the first middle sleeve, the first valve seat, the first valve core assembly, the first small ejector rod, the second spring and the first valve sleeve , the right cavity is provided with a second end sleeve, a second end sleeve joint, a second large ejector rod, a third spring, a second middle sleeve, a second valve seat, and a second valve core assembly in sequence from left to right , the second small ejector rod, the fourth spring and the second valve sleeve. In order to realize the hydraulic control, the disclosed technology separately designs a small hole for installing the spool, and it is for this reason that the hydraulic control check valve has a large volume and a relatively complicated structure.
实用新型内容Utility model content
本实用新型要解决的技术问题是提供一种结构简单、体积较小，易于维修的液控单向阀。The technical problem to be solved by the utility model is to provide a hydraulic control check valve with simple structure, small volume and easy maintenance.
本实用新型一种液控单向阀，包括：阀体；The utility model is a hydraulically controlled one-way valve, comprising: a valve body;
所述阀体包括进油口、出油口和控制油口，于出油口处安装有快接插头；所述快接插头包括左腔、右腔和阀芯；所述快接插头的右腔与所述阀体的进油口相连通；阀芯贯穿快接插头的左腔和右腔，且阀芯右端向右伸出右腔，所述阀芯包括全开工位和全关工位，当阀芯处于全开工位时，快接插头的左腔和右腔相连通，当阀芯处于全关工位时，快接插头的左腔和右腔彼此隔离；The valve body includes an oil inlet, an oil outlet and a control oil port, and a quick-connect plug is installed at the oil outlet; the quick-connect plug includes a left chamber, a right chamber and a spool; the right side of the quick-connect plug The cavity is connected with the oil inlet of the valve body; the valve core runs through the left cavity and the right cavity of the quick-connect plug, and the right end of the valve core protrudes from the right cavity to the right, and the valve core includes a fully open position and a fully closed position , when the spool is in the fully open position, the left cavity and the right cavity of the quick-connect plug are connected, and when the spool is in the fully-closed position, the left cavity and the right cavity of the quick-connect plug are isolated from each other;
于阀体的出油口内、快接插头右侧设置有移动活塞，移动活塞将控制油口和出油口完全隔离；移动活塞包括左工位和右工位，当移动活塞处于左工位时，移动活塞将阀芯推向全开工位，当移动活塞处于右工位时，阀芯受进油口处油压的影响在全开工位、全关工位之间切换。In the oil outlet of the valve body, there is a moving piston on the right side of the quick-connect plug. The moving piston completely isolates the control oil port and the oil outlet; the moving piston includes a left station and a right station. When the moving piston is in the left station , the moving piston pushes the spool to the fully open position. When the moving piston is in the right position, the spool is switched between the fully open position and the fully closed position under the influence of the oil pressure at the oil inlet.
本实用新型一种液控单向阀，其中于快接插头左腔和右腔之间设置有阀座，当阀芯处于全关工位时，阀芯的阀瓣与阀座形成密封副；当阀芯处于全开工位时，阀芯的阀瓣与阀座分离。The utility model is a hydraulic control one-way valve, wherein a valve seat is arranged between the left cavity and the right cavity of the quick-connect plug, and when the valve core is in the fully closed position, the valve disc of the valve core and the valve seat form a sealing pair; When the spool is in the fully open position, the disc of the spool is separated from the valve seat.
本实用新型一种液控单向阀，其中所述阀座、阀瓣之间形成的密封副为锥面密封。The utility model relates to a hydraulically controlled one-way valve, wherein the sealing pair formed between the valve seat and the valve flap is a conical surface seal.
本实用新型一种液控单向阀，其中所述阀芯内腔为中空结构，且阀芯上开有连通阀芯内腔、快接插头左腔的小孔，阀芯内腔向左与快接插头出油口相连通。The utility model is a hydraulically controlled one-way valve, wherein the inner cavity of the valve core is a hollow structure, and a small hole is opened on the valve core to communicate with the inner cavity of the valve core and the left cavity of the quick-connect plug. The oil outlets of the quick connectors are connected.
本实用新型一种液控单向阀，其中所述进油口包括第一进油口和第二进油口，且第一进油口与第二进油口相连通。The utility model is a hydraulically controlled one-way valve, wherein the oil inlet includes a first oil inlet and a second oil inlet, and the first oil inlet communicates with the second oil inlet.
本实用新型一种液控单向阀，其中所述快接插头与所述阀体的出油口为螺旋装配。The utility model relates to a hydraulically controlled one-way valve, wherein the quick-connect plug and the oil outlet of the valve body are assembled in a spiral manner.
本实用新型一种液控单向阀，其中所述快接插头与所述阀体的出油口卡接装配。The utility model relates to a hydraulically controlled one-way valve, wherein the quick-connect plug is clamped and assembled with the oil outlet of the valve body.
本实用新型一种液控单向阀，其中所述快接插头包括首尾相连的插头主体和固定活塞；其中插头主体内腔形成所述左腔，固定活塞内腔形成所述右腔。The utility model is a hydraulic control one-way valve, wherein the quick-connect plug includes a plug body connected end to end and a fixed piston; wherein the inner cavity of the plug main body forms the left cavity, and the inner cavity of the fixed piston forms the right cavity.
本实用新型一种液控单向阀与现有技术不同之处在于本实用新型将阀芯设计于快速插头内部，从而无需在阀体上单独设计安装阀芯的小孔，从而简化了阀体结构。另外，由于阀芯内置于快速插头内部，因此在需要对阀芯进行维修时，只需要将快速插头拆卸下来即可，无需对阀体其它连接件拆卸，简化了维修程序。The difference between the utility model and the prior art is that the valve core is designed inside the quick plug, so that there is no need to separately design a small hole for installing the valve core on the valve body, thereby simplifying the valve body. structure. In addition, since the spool is built into the quick plug, when the spool needs to be maintained, only the quick plug needs to be disassembled, and there is no need to disassemble other connecting parts of the valve body, which simplifies the maintenance procedure.
下面结合附图对本实用新型一种液控单向阀作进一步说明。A hydraulically controlled one-way valve of the present invention will be further described below in conjunction with the accompanying drawings.
附图说明Description of drawings
图1为当控制油口无压力油接通，且第一进油口/第二进油口液压油压强较小时，本实用新型一种液控单向阀的结构示意图；Fig. 1 is a structural schematic diagram of a hydraulic control check valve of the present invention when the control oil port is connected with no pressure oil and the hydraulic oil pressure of the first oil inlet/second oil inlet is relatively small;
图2为当控制油口无压力油接通，但液压油压强较大时，本实用新型一种液控单向阀的结构示意图；Fig. 2 is a structural schematic diagram of a hydraulically controlled check valve of the present invention when the control oil port is connected to no pressure oil but the hydraulic oil pressure is relatively high;
图3为当控制油口有压力油接通时，本实用新型一种液控单向阀的结构示意图；Fig. 3 is a schematic structural diagram of a hydraulic control check valve of the present invention when the control oil port is connected with pressure oil;
图4为快接插头的结构示意图。Fig. 4 is a schematic structural diagram of the quick-connect plug.
具体实施方式detailed description
如图1-4所示，本实用新型一种液控单向阀，包括：阀体1；阀体1包括进油口11、12、出油口14和控制油口13。于出油口14处安装有(螺旋装配或者卡接)快接插头。快接插头包括左腔23、右腔24和阀芯3，其中快接插头的右腔24与进油口11、12相连通。阀芯3贯穿快接插头的左腔23和右腔24，且阀芯右端向右伸出右腔24。阀芯为中空结构，且阀芯上开有连通阀芯内腔、快接插头左腔的小孔；同时阀芯内腔向左与快接插头出油口相连通。另外于左腔23和右腔24之间设置有阀座25，以与阀芯的阀瓣配合。阀芯3包括全开工位和全关工位，当阀芯处于全开工位时，阀芯3的阀瓣与阀座25分离，快接插头的左腔23和右腔24相连通；当阀芯3处于全关工位时，阀芯3的阀瓣与阀座25形成密封副(锥面密封或球面密封)，快接插头的左腔23和右腔24彼此隔离。As shown in FIGS. 1-4 , the utility model is a hydraulic control check valve, comprising: a valve body 1; the valve body 1 includes oil inlets 11, 12, an oil outlet 14 and a control oil port 13. A quick-connect plug (screw fit or snap-in) is installed at the oil outlet 14 . The quick-connect plug includes a left cavity 23 , a right cavity 24 and a spool 3 , wherein the right cavity 24 of the quick-connect plug communicates with the oil inlets 11 and 12 . The spool 3 runs through the left cavity 23 and the right cavity 24 of the quick-connect plug, and the right end of the spool protrudes from the right cavity 24 to the right. The spool has a hollow structure, and a small hole is opened on the spool to communicate with the inner cavity of the spool and the left cavity of the quick-connect plug; at the same time, the inner cavity of the spool communicates with the oil outlet of the quick-connect plug to the left. In addition, a valve seat 25 is provided between the left chamber 23 and the right chamber 24 to cooperate with the valve disc of the valve core. The spool 3 includes a fully open position and a fully closed position. When the spool is in the fully open position, the disc of the spool 3 is separated from the valve seat 25, and the left chamber 23 and the right chamber 24 of the quick-connect plug are connected; when the valve When the core 3 is in the fully closed position, the disc of the valve core 3 forms a sealing pair (cone seal or spherical seal) with the valve seat 25, and the left cavity 23 and the right cavity 24 of the quick-connect plug are isolated from each other.
于阀体1的出油口14内、快接插头右侧设置有移动活塞4，移动活塞4将控制油口13和出油口14完全隔离；移动活塞4包括左工位和右工位，当移动活塞4处于左工位时，其将阀芯3推向全开工位；当移动活塞4处于右工位时，阀芯3受进油口11、12处油压的影响在全开工位、全关工位之间切换。In the oil outlet 14 of the valve body 1, a moving piston 4 is arranged on the right side of the quick-connect plug, and the moving piston 4 completely isolates the control oil port 13 from the oil outlet 14; the moving piston 4 includes a left station and a right station, When the moving piston 4 is in the left position, it pushes the spool 3 to the fully open position; when the moving piston 4 is in the right position, the spool 3 is in the fully open position under the influence of the oil pressure at the oil inlets 11 and 12 , Switch between fully closed positions.
进一步地，快接插头包括首尾相连的插头主体21和固定活塞22；其中插头主体21的内腔形成左腔23，固定活塞22的内腔形成右腔24。之所以将快接插头设计成插头主体21和固定活塞22的组合体，目的在于：①方便对阀芯3的安装和维修；②固定活塞22与阀体出油口14之间形成密封环境，避免液压油泄露，进而保证了快接插头在出油口14处的牢固性。Further, the quick-connect plug includes a plug body 21 connected end to end and a fixed piston 22 ; the inner cavity of the plug main body 21 forms a left cavity 23 , and the inner cavity of the fixed piston 22 forms a right cavity 24 . The reason why the quick-connect plug is designed as a combination of the plug body 21 and the fixed piston 22 is to: ① facilitate the installation and maintenance of the valve core 3; ② form a sealed environment between the fixed piston 22 and the oil outlet 14 of the valve body, Avoid hydraulic oil leakage, thereby ensuring the firmness of the quick-connect plug at the oil outlet 14.
本实用新型一种液控单向阀的工作原理如下：The working principle of a hydraulic control check valve of the utility model is as follows:
当控制油口13处无压力油接通时，液压油从第一进油口11/第二进油口12流入快接插头的右腔24：①当进入右腔24的油压不足够大时，则阀芯3处于全关工位，如图1所示；②当进入右腔24的油压足够大时，则阀芯3向左移动至全开工位，液压油流入快接插头的左腔23，进而依次经阀芯内腔和快接插头出油口后流出阀体，如图2所示；When there is no pressure oil at the control oil port 13, the hydraulic oil flows from the first oil inlet 11/second oil inlet 12 into the right chamber 24 of the quick-connect plug: ① When the oil pressure entering the right chamber 24 is not large enough , the spool 3 is in the fully closed position, as shown in Figure 1; ②When the oil pressure entering the right chamber 24 is sufficiently large, the spool 3 moves to the left to the fully open position, and the hydraulic oil flows into the quick-connect plug The left cavity 23, and then flows out of the valve body through the inner cavity of the valve core and the oil outlet of the quick-connect plug, as shown in Figure 2;
当控制油口13处有压力油接通时，压力油推动移动活塞4向左运动至左工位，继而移动活塞4推动阀芯右端使阀芯3向左移动至全开工位，从而阀口被打开，此时无论进油口11、12处的油压有多大，液压油均能流入快接插头左腔，进而依次经阀芯内腔和快接插头出油口后流出阀体，如图3所示。When the pressure oil at the control oil port 13 is connected, the pressure oil pushes the moving piston 4 to move left to the left position, and then the moving piston 4 pushes the right end of the valve core to move the valve core 3 to the left to the fully open position, so that the valve port At this time, regardless of the oil pressure at the oil inlet 11 and 12, the hydraulic oil can flow into the left cavity of the quick-connect plug, and then flow out of the valve body through the inner cavity of the valve core and the oil outlet of the quick-connect plug in turn, as Figure 3 shows.
以上所述的实施例仅仅是对本实用新型的优选实施方式进行描述，并非对本实用新型的范围进行限定，在不脱离本实用新型设计精神的前提下，本领域普通技术人员对本实用新型的技术方案作出的各种变形和改进，均应落入本实用新型权利要求书确定的保护范围内。The above-mentioned embodiments are only described to the preferred implementation of the utility model, and are not limited to the scope of the utility model. Various modifications and improvements made should fall within the scope of protection determined by the claims of the utility model.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620114117.7U CN205559395U (en) | 2016-02-04 | 2016-02-04 | Hydraulic one -way valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620114117.7U CN205559395U (en) | 2016-02-04 | 2016-02-04 | Hydraulic one -way valve |
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| CN205559395U true CN205559395U (en) | 2016-09-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541686A (en) * | 2018-05-28 | 2019-12-06 | 中国石油天然气股份有限公司 | One-way flow tool and tubing |
| CN114110216A (en) * | 2021-12-02 | 2022-03-01 | 西安航空制动科技有限公司 | Cut-off valve for brake control system and oil way control method |
-
2016
- 2016-02-04 CN CN201620114117.7U patent/CN205559395U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541686A (en) * | 2018-05-28 | 2019-12-06 | 中国石油天然气股份有限公司 | One-way flow tool and tubing |
| CN110541686B (en) * | 2018-05-28 | 2021-11-30 | 中国石油天然气股份有限公司 | One-way flow tool and tubing |
| CN114110216A (en) * | 2021-12-02 | 2022-03-01 | 西安航空制动科技有限公司 | Cut-off valve for brake control system and oil way control method |
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