CN1111261C

CN1111261C - Disc double-track valve on-off structure

Info

Publication number: CN1111261C
Application number: CN99124192A
Authority: CN
Inventors: 王加新
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-12-02
Filing date: 1999-12-02
Publication date: 2003-06-11
Anticipated expiration: 2019-12-02
Also published as: CN1298070A

Abstract

The valve stem (4) together with the rotating disk (2) drives the limit pin (3) and the valve sealing structure under the forced action of the "brace" track (6), according to the "arc connection" on the fixed disk (1). The trajectory of the "straight line" track (5) rotates clockwise, and the valve is closed. On the contrary, turn it counterclockwise and the valve will open.

Description

Valve opening and closing structure with disc-shaped double-track rotation and support

技术领域：本发明属阀门行业中的阀门启闭结构技术。Technical field: the invention belongs to the valve opening and closing structure technology in the valve industry.

背景技术：球阀、蝶阀、旋塞阀如果采用斜面撑开、摆动角度、滚动贴压、旋塞升降的组合球体、组合蝶板、组合旋塞等密封结构；其启闭过程，一般均为旋转加升降的复合运动过程；其启闭结构一般分为四种：旋转和升降分开动作式、螺旋轨道复合动作式、90°直角轨道复合动作式、双轨道复合动作式(筒形)。Background technology: Ball valves, butterfly valves, and plug valves adopt sealing structures such as a combination ball, a combination butterfly plate, and a combination cock that are opened by an inclined plane, swing angle, rolling and pressing, and the cock is lifted; the opening and closing process is generally a combination of rotation and lifting. Compound motion process; its opening and closing structure is generally divided into four types: rotation and lifting separate action type, spiral track compound action type, 90° right-angle track compound action type, and double track compound action type (cylindrical).

发明内容：本发明的目的是提供一种盘形双轨道式旋转加撑拢的阀门复合启闭结构。SUMMARY OF THE INVENTION: The object of the present invention is to provide a composite opening and closing structure of a disc-shaped double-track rotating and braced valve.

适用于球阀、蝶阀、旋塞阀的盘形双轨道式旋转加撑拢的启闭结构主要是由固定盘(不能旋转)、旋转盘和限位销组合而成。其主要特征是：固定盘上带有“圆弧连直线”的轨道；旋转盘上带有“角度”或“弧度”或“角度连弧度”的“撑拢”轨道；限位销直穿于固定盘和旋转盘的轨道中间。其工作原理是：外力驱动阀杆连同旋转盘带动限位销，先按固定盘上的“圆弧”轨道的轨迹顺时针旋转，当限位销旋转到“圆弧”轨道相连的“直线”轨道时，旋转盘继续顺时针旋转，限位销在旋转盘上“撑拢”轨道的强制作用下，按固定盘上的“直线”轨道轨迹向固定盘周边撑开，这时限位销连同阀门密封结构件压向阀座，阀门关闭。当阀杆连同旋转盘逆时针旋转，在旋转盘上“撑拢”轨道的强制作用下，限位销连同阀门的密封结构件先按固定盘上的“直线”轨道的轨迹向固定盘中心收拢，再按固定盘上“圆弧”轨道的轨迹逆时针旋转，阀门开启。盘形双轨道旋转加撑拢的阀门启闭结构，根据需要可在阀门密封结构件上端安装一套，也可在上、下端各安装一套。所述固定盘上的“圆弧连直线”轨道和旋转盘上的“角度”或“弧度”或“角度连弧度”的撑拢轨道一般为顺方向，也可设计成反方向。所述固定盘一般在旋转盘上端，也可设计在旋转盘下端。所述限位销在尺寸许可并必要时可装有滚套，使限位销在旋转盘“撑拢”轨道中的滑动摩擦变为滚动摩擦。Suitable for ball valves, butterfly valves, and plug valves, the opening and closing structure of the disc-shaped double-track rotation plus brace is mainly composed of a fixed disc (non-rotatable), a rotary disc and a limit pin. Its main features are: there is a track of "arc connecting straight line" on the fixed disk; there is a "brace" track of "angle" or "radian" or "angle connecting radian" on the rotating disk; the limit pin directly passes through the In the middle of the track between the fixed disk and the rotating disk. Its working principle is: the external force drives the valve stem together with the rotating disk to drive the limit pin, and first rotates clockwise according to the track of the "arc" track on the fixed plate, when the limit pin rotates to the "straight line" connected by the "arc" track When the rotating disk continues to rotate clockwise, the limit pin is forced to "stretch" the track on the rotating disk, and stretches to the periphery of the fixed disk according to the "straight" track track on the fixed disk. At this time, the limit pin together with the valve The sealing structure is pressed against the valve seat, and the valve is closed. When the valve stem and the rotating disk rotate counterclockwise, under the forced action of the "brace" track on the rotating disk, the limit pin and the sealing structure of the valve first gather toward the center of the fixed disk according to the track of the "straight line" track on the fixed disk. , and then rotate counterclockwise according to the track of the "arc" track on the fixed plate, and the valve opens. The valve opening and closing structure with disc-shaped double-track rotation and propping can be installed on the upper end of the valve sealing structure according to needs, and can also be installed on the upper and lower ends. The "arc connecting straight line" track on the fixed disk and the "angle" or "radian" or "angle connecting radian" track on the rotating disk are generally in the forward direction, and can also be designed in the opposite direction. The fixed disk is generally on the upper end of the rotating disk, and can also be designed on the lower end of the rotating disk. The spacer pin can be equipped with a rolling sleeve when the size permits and if necessary, so that the sliding friction of the spacer pin in the "bending" track of the rotating disk becomes rolling friction.

本发明所述的启闭结构与现有的启闭结构相比，虽然使用功能基本相同，但比现有结构简单，高度底，使阀门总重量减轻，成本降低。Compared with the existing opening and closing structure, although the function of the opening and closing structure of the present invention is basically the same, it is simpler than the existing structure and has a lower height, so that the total weight of the valve is reduced and the cost is reduced.

附图说明：本发明的具体结构由以下的实施例及附图给出。BRIEF DESCRIPTION OF THE DRAWINGS: The specific structure of the present invention is provided by the following embodiments and accompanying drawings.

附图是依据本发明提出的盘形双轨道式旋转加撑拢的阀门启闭结构中的一种机构示意图。The accompanying drawing is a schematic diagram of a mechanism in the valve opening and closing structure of the disc-shaped double-track rotation plus brace proposed according to the present invention.

阀杆4连同旋转盘2带动限位销3按固定盘1上的“圆弧连直线”轨道5的轨迹，先顺时针旋转90°后，旋转盘2继续旋转，在旋转盘2上的“撑拢”轨道6的强制作用下，限位销3连同阀门密封结构件按固定盘1上“直线”轨道的轨迹向固定盘1周边撑开，阀门关闭。反之，阀杆4连同旋转盘2逆时针旋转，限位销3连同阀门密封结构件先按固定盘1上的“圆弧连直线”轨道5的“直线”轨道的轨迹向固定盘1中心收拢后，再按固定盘1上的“圆弧”轨道的轨迹逆时针旋转90°，阀门开启。The valve stem 4 together with the rotating disc 2 drives the limit pin 3 to rotate clockwise 90° according to the trajectory of the "arc connecting straight line" track 5 on the fixed disc 1, and then the rotating disc 2 continues to rotate. Under the coercive action of the "brace" track 6, the limit pin 3 and the valve sealing structure are stretched to the periphery of the fixed disc 1 according to the track of the "straight line" track on the fixed disc 1, and the valve is closed. On the contrary, the valve stem 4 rotates counterclockwise together with the rotating disk 2, and the limit pin 3 and the valve sealing structure first gather toward the center of the fixed disk 1 according to the track of the "straight line" track of the "arc connecting straight line" track 5 on the fixed disk 1. Finally, according to the track of the "arc" track on the fixed disk 1, rotate 90° counterclockwise, and the valve opens.

具体实施方式：本发明与“滚动球球阀密封结构”技术相结合，可设计出低成本、高参数的球阀。Specific embodiments: the present invention combines with the "rolling ball ball valve sealing structure" technology to design a low-cost, high-parameter ball valve.

Claims

1. The opening and closing structure of the disc-shaped double-track rotating and braced valve is mainly composed of a fixed disc, a rotating disc and a limit pin. It is characterized in that:

A. There is an orbit track of "arc connecting straight line" on the fixed plate;

B. There is an orbit track with the function of "stretching" on the rotating disk:

C. The limit pin goes straight through the middle of the track on the fixed disk and the rotating disk;

D. The fixed disk does not rotate, and the rotating disk rotates clockwise or counterclockwise.