CN204083324U - Check ball valve - Google Patents

Check ball valve Download PDF

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Publication number
CN204083324U
CN204083324U CN 201420501104 CN201420501104U CN204083324U CN 204083324 U CN204083324 U CN 204083324U CN 201420501104 CN201420501104 CN 201420501104 CN 201420501104 U CN201420501104 U CN 201420501104U CN 204083324 U CN204083324 U CN 204083324U
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CN
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Grant
Patent type
Prior art keywords
valve
ball
flap
check
provided
Prior art date
Application number
CN 201420501104
Other languages
Chinese (zh)
Inventor
吴建林
林剑宇
郭丽
Original Assignee
四川凯茨阀门制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Abstract

The utility model discloses a check ball valve, and belongs to the valve field. The check ball valve comprises a valve body, a valve cover and a valve seat, wherein a throttling ball is arranged on the valve body, an inlet of the throttling ball is large, an outlet of the throttling ball is small, and a return stop structure is arranged on the outlet of the throttling ball. The check ball valve is stable in performance and simple in structure, and prevents media from back flowing.

Description

止回球阀 Ball check valves

技术领域 FIELD

[0001] 本实用新型属于阀门领域,具体涉及一种止回球阀。 [0001] The present invention belongs to the field of valves, in particular to a check ball valve.

技术背景 technical background

[0002] 球阀被广泛的应用在石油炼制、长输管线、化工、造纸、制药、水利、电力、市政、钢铁等行业,在国民经济中占有举足轻重的地位。 [0002] Ball valves are widely used in petroleum refining, long-distance pipelines, chemical, paper, pharmaceuticals, water conservancy, power, municipal, steel and other industries, plays a decisive role in the national economy. 球阀中设有球体,主要通过旋转球体来实现开启或者关闭介质通路的功能,再能起到切断、分配和改变介质流动方向的作用,结构功能比较单一。 Ball valve ball is provided primarily by the rotation of the sphere on or off to achieve functional medium passage, and then can play a cut distribution and change the flow direction of the medium for the structure of a single function.

[0003] 为防止介质倒流,在现有技术中通常在管线中与球阀串联一个止回阀,没有单独的能够起止回作用的球阀。 [0003] In order to prevent the media back, generally with a ball check valve in series with the prior art in-line, back to the beginning and end can be no separate action ball valve.

实用新型内容 SUMMARY

[0004] 本实用新型公开了一种止回球阀,旨在提供一种性能更稳定的,结构简单的防止介质倒流的止回球阀。 [0004] The present invention discloses a ball check valve, intended to provide a more stable performance and a simple structure to prevent the media back check ball valve.

[0005] 为实现上述目的,本实用新型的技术方案如下: [0005] To achieve the above object, the technical solution of the present invention are as follows:

[0006] 止回球阀,包括阀座支承圈9、阀盖1、球体10,其特征在于:在球体出口位置设有止回结构,包括阀瓣盖7、阀瓣2、导向轴5、导向圈4、支撑板3与止回阀座8;所述的阀瓣盖7与阀瓣2通过螺钉连接,设置在节流球体10出口处;所述的止回阀座8为L型,其一端设置在阀瓣盖7与阀瓣2之间,另一端抵紧阀座支承圈9。 [0006] The ball check valve, comprising a valve seat support ring 9, the valve cover 1, the sphere 10, characterized in that: the structure is provided with a check ball outlet position, the valve comprising a cover flap 7, the flap 2, the guide shaft 5, a guide ring 4, the check valve seat 3 and the support plate 8; 7 of the valve flap and the valve flap cover 2 is connected by means of screws, disposed at the outlet of the throttle ball 10; the L-shaped check valve seat 8, which is an end cap disposed between the valve plate 7 and the valve plate 2, the other end of the support ring tightly against the valve seat 9.

[0007] 所述的支撑板3设置在阀盖I内,其中部设有导向圈4与导向轴5,通过导向轴5连接到阀瓣2。 [0007] The support plate 3 is provided in the bonnet I, wherein the guide ring portion 4 provided with the guide shaft 5, connected to the flap 2 by a guide shaft 5.

[0008] 所述的导向圈4开有弹簧孔,弹簧孔内设置有弹簧6,弹簧抵6在阀瓣2上。 4 the guide ring [0008] The spring hole is opened, the spring hole 6 is provided with a spring, the spring 6 against the valve plate 2.

[0009] 所述的球体为入口大出口小的节流球体10。 [0009] The small inlet sphere large ball 10 meter.

[0010] 本实用新型的有益效果在于: [0010] The beneficial effects of the present invention comprising:

[0011] 一、本实用新型结构简单,各零部件生产皆不困囊,加之安装容易,利于进行推广; [0011] First, the simple structure of the present invention, each of the parts production neither trapped balloon, plus easy to install, which will help to promote;

[0012] 二、球体采用入口大出口小的节流球体,直接限制介质的流量,由于强制受阻节流,所以节流前后的压力差大,起到减压的作用; [0012] Second, a small sphere inlet meter large sphere, directly limit the flow of the medium, the forced expansion blocked, the pressure before and after the throttle is large, the pressure acts;

[0013] 三、L型止回阀座设计,使其紧固在阀瓣与阀瓣盖之间,其一端顶紧阀座,起到良好的密封效果,防止介质倒流; [0013] III, L-type design of the check valve seat, so that the fastening between the valve disc and valve cap, which top end tighten the seat, play a good sealing effect, prevent the media back;

[0014] 四、阀瓣与支撑板之间通过导向轴连接,确定了在介质流通时,阀瓣向出口方向移动不会产生偏移,在恢复到原位置时,不会有位移导致止回阀座密封失效。 [0014] Fourth, the connection valve between the guide shaft and the support plate, when it is determined in the medium flow, the valve flap moves toward the exit no offset, when restoring to the original position, the displacement does not cause the non-return seat seal failure.

附图说明 BRIEF DESCRIPTION

[0015] 图1为本实用新型的结构示意图。 [0015] Figure 1 is a schematic view of the structure of the new utility.

[0016] 图中标记:1为阀盖、2为阀瓣、3为支撑板、4为导向圈、5为导向轴、6为弹簧、7为阀瓣盖、8为止回阀座、9为阀座支承圈、10为节流球体、11为阀杆。 [0016] FIG Biaoji: 1 as Fa Gai, 2 as Faban, 3 as Zhicheng plate, 4 as Dao Xiangquan, five as Dao Xiangzhou, six as Danhuang, 7 as Faban Gai, 8 as Zhihuifazuo, 9 as seat support ring, throttling ball 10, the stem 11.

具体实施方式 detailed description

[0017] 下面结合附图与具体实施方式对本实用新型进行进一步说明。 [0017] DETAILED DESCRIPTION OF THE DRAWINGS embodiment and further explanation of the invention is carried out.

[0018] 如图1所示,止回球阀,包括阀座支承圈9、阀盖1、球体10,其特征在于:在球体出口位置设有止回结构,包括阀瓣盖7、阀瓣2、导向轴5、导向圈4、支撑板3与止回阀座8;所述的阀瓣盖7与阀瓣2通过螺钉连接,设置在节流球体10出口处;所述的止回阀座8为L型,其一端设置在阀瓣盖7与阀瓣2之间,另一端抵紧阀座支承圈9。 [0018] 1, the check ball valve, comprising a valve seat support ring 9, the valve cover 1, the sphere 10, characterized in that: the structure is provided with a check ball outlet position, the valve comprising a cover flap 7, the flap 2 , the guide shaft 5, a guide ring 4, the check valve seat 3 and the support plate 8; 7 of the valve flap and the valve flap cover 2 via a screw connection, is provided at the outlet of the throttle ball 10; said check valve seat 8 is L-shaped, one end thereof is disposed between the valve plate 7 and the flap cover 2, the other end of the support ring tightly against the valve seat 9. 所述的支撑板3设置在阀盖I内,其中部设有导向圈4与导向轴5,通过导向轴5连接到阀瓣2。 The support plate 3 is provided in the bonnet I, wherein the guide ring portion 4 provided with the guide shaft 5, connected to the flap 2 by a guide shaft 5. 所述的导向圈4开有弹簧孔,弹簧孔内设置有弹簧6,弹簧抵6在阀瓣2上。 Said guide ring spring hole 4 is opened, the spring hole 6 is provided with a spring, the spring 6 abuts on the valve plate 2. 所述的球体为入口大出口小的节流球体10。 The sphere size inlet throttling sphere outlet 10. 在球阀工作时,从入口流入介质,通过节流球体10,因其入口大出口小的结构特征,直接限制介质的流量,由于强制受阻节流,所以节流前后的压力差大,起到减压的作用。 When the ball valve working medium flows from the inlet, through the throttle sphere 10, its largest export inlet small structural features, directly limit the flow of the medium, the forced expansion blocked, the pressure before and after the throttle is large, Save functions pressure role. 介质作用在阀瓣盖7上时推动阀瓣盖7与阀瓣2沿着导向轴5向右移动,压缩弹簧6,止回阀座8随之移动,密封失效,介质流通。 Mediators pushed in the valve plate 7 on the cover 7 and the cover flap the flap 2 is moved rightward along the guide shaft 5, a compression spring 6, 8 move with the check valve seat, seal failure, medium flow. 因导向轴5的限位作用,阀瓣向右移动不会产生上下偏移,在恢复到原位置时,不会有位移导致止回阀座密封性能减弱。 Due to the limiting effect of the guide shaft 5, the flap moves to the right and down shift does not occur, when restoring to the original position, the displacement does not lead to weakening the check valve seat sealing performance. 当介质停止流入时,弹簧6反弹推动阀瓣2复位,止回阀座8继续抵紧阀座支承圈9,起到密封作用,介质不能回流到节流球体内。 When the medium flows stopped, the spring 6 pushes the valve flap 2 reset rebound, the check valve seat 8 continues tightly against the valve seat support ring 9, the sealing function, the media can not flow back into the throttle sphere.

Claims (3)

  1. 1.一种止回球阀,包括阀座支承圈(9)、阀盖(I)、球体(10),其特征在于:所述的球体为入口大出口小的节流球体(10),在球体出口位置设有止回结构,包括阀瓣盖(7)、阀瓣(2)、导向轴(5)、导向圈(4)、支撑板(3)与止回阀座⑶;所述的阀瓣盖(7)与阀瓣⑵通过螺钉连接,设置在节流球体(10)出口处;所述的止回阀座(8)为L型,其一端设置在阀瓣盖(7)与阀瓣(2)之间,另一端抵紧阀座支承圈(9)。 A check ball valve, comprising a valve seat support ring (9), valve cover (the I), the ball (10), characterized in that: the inlet ball is small sphere large meter (10), in position with the outlet check ball structure, comprising a cover flap (7), the flap (2), the guide shaft (5), the guide ring (4), the support plate (3) and the check valve seat ⑶; the the cover flap (7) is connected to the flap by screws ⑵, provided the throttle ball (10) at the outlet; said check valve seat (8) is L-shaped, one end cap provided on the valve plate (7) and between the flap (2), the other end of the support ring tightly against the seat (9).
  2. 2.根据权利要求1所述的止回球阀,其特征在于:所述的支撑板(3)设置在阀盖(I)内,其中部设有导向圈⑷与导向轴(5),通过导向轴(5)连接到阀瓣(2)。 The check ball valve according to claim 1, wherein: said support plate (3) provided on the bonnet (I) inside, wherein the guide portion is provided with a guide ring ⑷ shaft (5), the guide a shaft (5) connected to the valve flap (2).
  3. 3.根据权利要求1所述的止回球阀,其特征在于:所述的导向圈(4)开有弹簧孔,弹簧孔内设置有弹簧(6),弹簧抵(6)在阀瓣⑵上。 The check ball valve according to claim 1, wherein: said guide ring (4) has a spring hole open, the spring is provided with a spring hole (6), against the spring (6) on the valve plate at ⑵ .
CN 201420501104 2014-09-02 2014-09-02 Check ball valve CN204083324U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201420501104 CN204083324U (en) 2014-09-02 2014-09-02 Check ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201420501104 CN204083324U (en) 2014-09-02 2014-09-02 Check ball valve

Publications (1)

Publication Number Publication Date
CN204083324U true CN204083324U (en) 2015-01-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201420501104 CN204083324U (en) 2014-09-02 2014-09-02 Check ball valve

Country Status (1)

Country Link
CN (1) CN204083324U (en)

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