CN103851233A - Round rotating closure flap valve - Google Patents

Abstract

The invention relates to a round rotating closure flap valve, and belongs to the technical field of water supply and drainage equipment. The round rotating closure flap valve comprises a flange tube which is fixed on the outer wall of a water outlet of a round pipeline, wherein a pipeline is arranged on a middle section of the flange tube, flanges are arranged on two ends of the flange tube, the top end of the pipeline is hinged to a flap valve through a rotating pin shaft, and the outer side of the flap valve is fixedly connected to a slider block; a support plate which is vertical to the flange tube is fixed on the upper part of the outer side of the flange tube, a rotating driving device is arranged on the support plate, the output end of the rotating driving device is connected to one end of a rocker arm, and the slider block is supported by the other end of the rocker arm. The round rotating closure flap valve has a closure (current regulation) function, and meanwhile, the flap valve is controlled to open and close.

Description

Circular rotary cut-off flap door

technical field

The invention belongs to the technical field of water supply and drainage equipment, and in particular relates to a circular rotary shut-off flap.

Background technique

The opening and closing of the existing flap doors cannot be automatically controlled, and the opening of the flap doors cannot be adjusted and controlled.

Contents of the invention

Purpose of the present invention is exactly to provide a kind of circular rotary cut-off flapper for the defective of prior art.

The technical solution adopted in the present invention is: a circular rotary shut-off valve, including a flange cylinder fixed on the outer wall of the circular pipeline water outlet, the middle section of the flange cylinder is a pipeline, and the two ends of the flange cylinder are Flange, the top of the pipe is hinged with a flap door through a rotating pin shaft, and a slider is fixedly connected to the outside of the flap door; a support plate perpendicular to the flange barrel is fixed on the outer side of the flange barrel, and the support plate A rotary drive device is arranged on the board, the output end of the rotary drive device is connected with one end of the rotary arm, and the other end of the rotary arm bears against the slider.

In a further preferred structure, a fixed plate is fixedly connected to the top of the pipe, and the flapper is hinged on the fixed plate.

In a further preferred structure, the slider is a wedge-shaped block structure with a small upper end and a larger lower end.

In a further preferred structure, a sealing structure is provided between the flapper door and the flange cylinder.

In a further preferred structure, the sealing structure is a first protruding ring and a second protruding ring protruding from the flap on the side where the flap is in contact with the flange cylinder, and the first protruding ring and the second protruding ring protrude from the flap. There is a groove between the raised rings; the outermost edge of the first raised ring is perpendicular to the flange barrel; the thickness of the protrusion of the second raised ring is greater than the thickness of the first raised ring, The second protruding ring is arranged obliquely along the direction of the outer edge of the flap, and a bending space for the second protruding ring is provided on the flap at the rear end of the second protruding ring.

The invention has the function of intercepting (regulating) the flow, and at the same time, the opening and closing of the opening and closing door can be controlled.

Description of drawings

Fig. 1 is a front view of the present invention;

Fig. 2 is a schematic diagram of the structure of the closed state of the present invention;

Fig. 3 is a schematic diagram of the sealing structure of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.

As shown in Figures 1-2, the present invention includes a flange cylinder 1 fixed on the outer wall of the circular pipe outlet, the middle section of the flange cylinder 1 is a pipeline 1.1, and the two ends of the flange cylinder 1 are flanges 1.2, the top of the pipeline 1.1 is hinged with a flapper 3 through the rotating pin shaft 2, and a slider 8 is fixedly connected to the outer side of the flapper 3; The support plate 7 is provided with a rotary drive device 6 , the output end of the rotary drive device 6 is connected to one end of the rotary arm 5 , and the other end of the rotary arm 5 bears against the slider 8 . The top end of the pipeline 1.1 is fixedly connected with a fixed plate 1.3, and the flapper 3 is hinged on the fixed plate 1.3. The slider 8 is a wedge-shaped block structure with a small upper end and a larger lower end.

In the above solution, as shown in FIG. 3 , a sealing structure 4 is provided between the flapper door 3 and the flange cylinder 1 . The sealing structure 4 is the first protruding ring 4.1 and the second protruding ring 4.2 protruding from the flapper 3 on the side of the flapper 3 in contact with the flange cylinder 1, the first protruding ring 4.1 and the second protruding ring 4.1 There is a groove 4.3 between the two raised rings 4.2; the outermost edge of the first raised ring 4.1 is perpendicular to the flange cylinder 1; the protrusion thickness of the second raised ring 4.2 is greater than that of the first raised ring The thickness of a protruding ring 4.1, the second protruding ring 4.12 is arranged obliquely along the direction along the outer edge of the flap gate 3, and the flap gate 3 at the rear end of the second protruding ring 4.2 is provided with a second protruding ring The bending activity space 4.4 of ring 4.2. When the flapper 3 is in contact with the flange barrel 1, the second protruding ring 4.2 can first contact the flange barrel 1 to realize sealing, and the air in the groove 4.3 is squeezed out, and the ultra-low pressure sealing can be realized at this moment. The sealing structure 4 between the flap door and the flange tube 1 can realize low pressure (or no pressure), the seal can be closed only by the self-weight of the flap door, and the self-gravity of the seal does not need to be very large at the same time, and the water loss can be opened. Very low; the sealing structure of the flap door is within the range of elastic deformation during high pressure, and at the same time, the movable space 4.4 used for the bending of the second raised ring 4.2 can ensure that the flap door does not deform under the highest working pressure during high pressure sealing.

The working principle of the present invention: the rotary driving device 6 of the present invention can drive the rotation of the rotating arm 5 , thereby realizing the adjustment of the opening of the flap door 3 . Wherein, when the rotating arm 5 rotates counterclockwise, the opening of the flap door 3 increases, and when the rotating arm 5 rotates clockwise, the opening of the flap door 3 decreases, thereby automatically controlling the size of the water flow.

The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Claims (5)

1. A circular rotary shut-off flapper, comprising a flange tube fixed on the outer wall of the circular pipeline water outlet, the middle section of the flange tube is a pipeline, the two ends of the flange tube are flanges, and the pipeline The top end is hinged with a flap door through a rotating pin shaft, and the feature is that a slider is fixedly connected to the outer side of the flap door; a support plate perpendicular to the flange barrel is fixed on the outer upper part of the flange barrel, and the support plate A rotary drive device is provided, the output end of the rotary drive device is connected with one end of the rotary arm, and the other end of the rotary arm bears against the slider. 2. The circular rotary shut-off flap door according to claim 1, characterized in that: a fixed plate is fixedly connected to the top of the pipe, and the flap door is hinged on the fixed plate. 3. The circular rotary shut-off flap according to claim 1, characterized in that: the slider is a wedge-shaped block structure with a small upper end and a larger lower end. 4. The circular rotary shut-off flapper according to claim 1, characterized in that: a sealing structure is provided between the flapper and the flange cylinder. 5. The circular rotary shut-off flap according to claim 4, characterized in that: the sealing structure is the first protruding ring and the second ring protruding from the flap on the side where the flap is in contact with the flange cylinder. A protruding ring, a groove is provided between the first protruding ring and the second protruding ring; the outermost edge of the first protruding ring is perpendicular to the flange cylinder; the second protruding ring The thickness of the protrusion of the ring is greater than the thickness of the first raised ring, the second raised ring is arranged obliquely along the direction along the outer edge of the flap, and the flap at the rear end of the second raised ring is provided with a The bending activity space of the second raised ring.

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