KR100390188B1 - fluid passage opening and shutting device for filtering apparatus - Google Patents

Abstract

The present invention relates to a flow opening and closing device of a rapid filter paper, and more particularly, the flat bottom side provided in the opening and closing device that is opened and closed by lifting and lowering, close to the raw water introduction wear at an appropriate pressure to maintain airtightness, The present invention relates to a flow path opening and closing device of a rapid filter paper that absorbs malfunctions, over-operations, and eccentric motions of the working shaft according to the upper and lower operating widths.

The configuration is coupled to the one end of the operating shaft 122 for the linear reciprocating up and down by the drive unit 110 consisting of a pneumatic cylinder 111 to be in close contact with the outer peripheral surface of the raw water introduction wear 140 In the flat bottom opening and closing device of the conventional general rapid filter paper opening and closing the flat bottom side 130, the engaging portion of the operating shaft 122 and the flat bottom side 130 when the operating shaft 122 is lowered It characterized in that the flat bottom side 130 includes an elastic support portion 120 to be in close contact with the raw wear introduction wear 140 by elasticity, the elastic support portion 120, the flat bottom side 130 The support hole 131 to guide the sliding in the direction of the up and down in the center of the sliding and the support shaft which is further extended in the longitudinal direction on one side of the operating shaft 122 is inserted into the support hole 131 and sliding ( 126 and the flat bottom side 130 in the longitudinal direction of the support shaft 126. Provided in the side end of the spring 125, the actuating shaft 122 has a upstream surface acoustic characterized in that provided as a retaining seat 124 for supporting the spring (125).

Therefore, the present invention improves the production cost, repair and energy efficiency by improving a large number of complex structures in a simple structure, and raises and lowers the flat bottom to a certain height and closely adheres the flat bottom and the raw water introduction wear. It is effective to have a flow path opening and closing device of a rapid filter paper that is precisely open and close even in the airtight and various eccentricity and errors caused by repeated use.

Description

Flow passage opening and closing device for rapid filter {fluid passage opening and shutting device for filtering apparatus}

The present invention relates to a rapid filter flow path opening and closing device, and more particularly, to maintain the air tightness in close contact with a suitable low-grade raw water introduction wear that is opened and closed by opening and closing, the upper and lower limits of the opening and closing parts The present invention relates to a flow path opening and closing device of a rapid filter paper that absorbs malfunctions, over-operations, and eccentric motions according to the working width, thereby ensuring reliable opening and closing.

First, the conventional fast filter flow opening and closing device structure is installed by installing a limit switch or a proximity switch to limit the upper and lower operating point of the flat bottom provided in the opening and closing device to operate in the vertical direction When the position is reached, the rotation of the motor for driving the flat bottom is stopped.

In addition, another conventional rapid filter passage opening and closing device is described by the utility model publication (Publication No. 1992-0007645: flat bottom opening and closing device of the rapid filter paper) is as follows.

A cam disposed vertically on one side of the drive casing and provided with a switch operating rod on its longest side so as to be driven by a drive motor and an output shaft of the reduction gear receiving the power of the motor, and by the switch operating rod. Positioned type upper limit proximity switch and fixed lower limit proximity switch disposed on the upper and lower sides of the drive casing to be operated to stop driving of the motor when the flat bottom is opened or closed, and the general flat bottom is placed at the bottom of the vertical shaft. And an operating shaft having an upper side of the shaft bar disposed in the support cylinder under the driving unit casing and being elastically installed at a spring, and constantly contacting the cam to convert the rotational motion of the cam into a vertical movement of the operating shaft. The cam roller is fixedly installed.

The spring for elastically supporting the working shaft is installed between the spring sheet at the top of the drawing guided by the plurality of guide rods and the lower support plate of the support cylinder.

Therefore, the above-mentioned conventional design is to open and close one surface of the raw water introduction wear by raising and lowering the flat bottom by a cam and a spring provided therein.

In addition, it will be explained by another conventional utility model publication (Publication No. 1992-7646: Flat bottom opening and closing device of the rapid filter paper) as follows.

In the flat bottom opening and closing device of a rapid filter for opening and closing the flat bottom by raising and lowering the working shaft as a feed turn rod of the pneumatic cylinder, the casing is built in the tip of the piston rod and the upper side of the operating shaft in contact with the lower portion of the support plate on which the pneumatic cylinder is installed The spring seat and the casing of the upper operating shaft supported by the guide rod is installed between the lower support plate to install the spring supporting the operating shaft upward, one side of the support plate is the spring seat is the front end is penetrated into the inside of the casing Characterized in that it is configured by installing a plurality of adjustment bolt in contact with the upper surface of the.

However, since the opening and closing device is directly connected to the operating rod, the opening and closing must be made in close contact with one surface of the raw water introduction wear at the time of raising and lowering, thus preventing the accurate opening and closing and sealing in case of eccentricity or error. There is this.

In addition, in order to lower the flat bottom, there is a problem of inefficiency of transmitting power above the opening and closing pressure by elasticity of the spring.

In addition, there is a problem in that the structure, such as the structure is damaged because the pressure load directly transfers the pressure load directly to the raw water introduction wear when the flat bottom making the rise and fall due to the malfunction of the control lever falls below the lower limit.

In particular, a large number of complex structures such as cams, switches, and rollers are provided, making manufacturing costs, repairs, and energy efficiency difficult. The flat bottom and raw water are introduced only by directly raising and lowering the flat bottom to a certain height. There is a problem that opening and closing is not easy due to the confidentiality and the eccentricity of the wear and the occurrence of errors caused by repeated use.

Therefore, the object of the present invention,

Improving the production cost, repair and energy efficiency by improving a number of complex structures to a simple structure, raising and lowering the flat bottom to a certain height, and maintaining confidentiality and various kinds of close contact between the flat bottom and raw water introduction wear. It is to provide a flow path opening and closing device for rapid filter paper that can be opened and closed accurately even in the occurrence of errors due to eccentricity and repeated use.

1 is a sectional view of the main portion extracting side showing the flow opening and closing device of the rapid filter of the present invention.

2 and 3 is a sectional view of the main portion extracting side showing the operating state of the opening and closing device of the present invention.

Explanation of symbols on the main parts of the drawings

100-opening and closing device 110-drive section 111-pneumatic cylinder

112-piston rod 113-support bracket 114-lower switch

115-high limit switch 116-casing 120-elastic support

122-Axis 124-Jang seat 125-Spring

125'-spring 26-support shaft 130-flat

131-support 140-Seaware

Therefore, the most preferred embodiment of the present invention will be described.

It is coupled to one end of the operating shaft 122 for linear reciprocation by the drive unit 110 formed of the pneumatic cylinder 111, so as to be in close contact with the outer circumferential surface of the raw water introduction wear 140, opening and closing In the conventional general rapid filter paper opening and closing device provided with a flat bottom 130,

The coupling portion of the working shaft 122 and the flat bottom side 130 is elastic to allow the flat bottom side 130 to be in close contact with the raw water introduction wear 140 by elasticity when the working shaft 122 descends. It characterized in that it comprises a support 120.

In addition, the operation shaft 122 is characterized in that it further comprises a connection portion 123, the one end portion is coupled so that the eccentricity and the deflection freely in the longitudinal direction.

The preferred embodiments of the present invention prepared as described above will be described in detail with reference to the accompanying drawings 'FIG. 1', 'FIG. 2', and 'FIG. 3' as follows.

First, the flow path opening and closing device of the present invention,

Pneumatic cylinder 111 and the driving unit 110 is provided with a piston rod 112 for linear reciprocating motion to one side thereof, and coupled to one end of the piston rod 112, the lifting and lowering by the linear reciprocating motion Composed to the working shaft 122 and the other end portion of the working shaft 122 was made of a flat bottom side 130 in close contact with the outer peripheral surface of the raw water introduction wear (140).

In addition, the other side of the pneumatic cylinder 111 was further provided with a support bracket 113 for transmitting the position by raising and lowering.

And, the upper limit switch 115 for detecting the support bracket 113 provided on the other side of the pneumatic cylinder 111 at the contact point at the uppermost point and the lowest point of the pneumatic cylinder 111 constituting the drive unit 110 And a lower limit switch 114, a casing 116 provided to install the pneumatic cylinder 111 and the support bracket 113, and an upper limit switch 115, a lower limit switch 114, and a piston rod 112 therein. ) Is included.

At this time, the elastic support 120 will be described in more detail as follows.

The elastic support portion 120,

A support hole 131 which induces sliding through a central portion of the flat bottom side 130 in a rising / lowering direction;

A support shaft 126 extending further in a longitudinal direction on one side of the working shaft 122 and sliding into the support hole 131 to slide;

The flat bottom 130 is a spring 125 having an upward elasticity in the longitudinal direction of the support shaft 126,

It is characterized in that provided on the one end of the working shaft 122 is provided with a locking seat 124 for supporting the spring 125.

At this time, the spring 125 is provided with a plurality of leaf springs 125 'provided with a groove through which the support shaft 126 passes.

At this time, the leaf spring 125 'is made of an elastic material and is provided with a groove through which the support shaft 126 penetrates in the center thereof, and is provided in a non-equilibrium with an outer circumference at a predetermined angle to symmetrically form the plurality of leaf springs 125'. It is used repeatedly.

In addition, the operation shaft 122 further includes a connection part 123 coupled to the one end of the one end portion so as to be deflectable during rotation by placing a hinge portion free of eccentricity and refraction in the longitudinal direction.

The operation process of the present invention configured as described above will be described with reference to FIGS. 2 and 3 as follows.

First, FIG. 2 shows a state in which the flat bottom side 130 of the opening and closing device 100 is lifted to open the raw water introduction wear 140.

3 shows the state in which the flat bottom 130 of the opening and closing device 100 descends to close the raw water introduction wear 140.

First, the opening and closing device 100 in the closed state is the pneumatic cylinder 111 is elevated and at this time the support bracket 113 provided on one side is stopped by operating the upper limit switch 115 provided at the upper limit position and the piston rod ( The operation base 122 and the support base 126 connected to one side of the support shaft 126 are raised and lowered to open the raw water introduction wear 140.

In addition, as an operation for opening the raw water introduction wear 140, the piston rod 112 of the pneumatic cylinder 111 is lowered and at this time the support bracket 113 provided on the other side to operate the lower limit switch 114 At this time, the flat bottom side 130 coupled to the operating shaft 122 and the support shaft 126 is to close the raw water introduction wear 140.

At this time, the elastic support portion 120 provided on the working shaft 122 and the support shaft 126 has a down elasticity at a predetermined pressure and the flat bottom side 130 is in close contact with the raw water introduction wear 140 to ensure air tightness. Keep it.

Accordingly, the operation of the elastic support 130 is the operation shaft 122 is lowered to the flat bottom side 130 to close the raw water introduction wear (140).

Subsequently, the support bracket 113 provided in the pneumatic cylinder 111 stops descending while operating the lower limit switch 114. At this time, the operation shaft 122 lowered more than the upper end of the raw water introduction wear 140 is As the support shaft 126 descends to the support hole 131 constituting the elastic support 120, the spring 125 is compressed on one side of the flat bottom 130, and the spring 125 is the locking sheet 124. Supported by.

Therefore, the flat bottom 130 is compressed by the spring 125 for the raw water introduction wear 140 by elasticity.

In addition, even when the raw water introduction wear 140 and the opening and closing device 100 does not form a straight line is eccentric by the connecting portion 123 provided on the operating shaft 122, it is possible to open and close smoothly.

In addition, the spring 125 provided with the plurality of leaf springs 125 'is provided by combining an appropriate number according to the pressure and the length.

Referring to the operation of the present invention thus prepared as follows.

Opening device 100 of the present invention to act to open and close the raw water introduction wear 140,

The pneumatic cylinder 111, the support bracket 113, and the upper limit switch 115 and the lower limit switch 114 constituting the driving unit 110 serve to raise and lower the proper height for opening and closing.

In addition, the operation shaft 122 is connected to the drive unit 110 to transfer the rise and fall, the flat bottom 130 serves to open and close the raw water introduction wear 140.

In addition, the support shaft 126 constituting the elastic support 120 is extended to one side of the operating shaft 122 to directly transfer the lifting and lowering movement and is penetrated through the support hole 131 provided in the flat bottom 130 Sliding when the operating shaft 122 exceeds the lower limit.

In addition, the engaging sheet 124 and the spring 125 has a function of having a downelasticity so as to be in close contact with the raw water introduction wear 140 or when the flat bottom 130 is over the lower limit.

In particular, the spring 125 is provided with a plurality of leaf springs (125 ') to act as a combination to adjust the appropriate pressure and length.

Therefore, the present invention,

Improving the production cost, repair and energy efficiency by improving a number of complex structures to a simple structure, raising and lowering the flat bottom to a certain height, and maintaining confidentiality and various kinds of close contact between the flat bottom and raw water introduction wear. There is an effect of having a flow path opening and closing device of rapid filter paper that the correct opening and closing even in the occurrence of errors due to eccentricity and repeated use.

Claims (3)

It is coupled to one end of the operating shaft 122 for linear reciprocation by the drive unit 110 formed of the pneumatic cylinder 111, so as to be in close contact with the outer circumferential surface of the raw water introduction wear 140, opening and closing In the flat bottom opening and closing device of the conventional general rapid filter paper provided with a flat bottom side, The coupling portion of the working shaft 122 and the flat bottom side 130 is elastic to allow the flat bottom side 130 to be in close contact with the raw water introduction wear 140 by elasticity when the working shaft 122 descends. Flow opening and closing device of the rapid filter, characterized in that it comprises a support (120). The method of claim 1, The operation shaft 122, the flow opening and closing device of the rapid filter, characterized in that the one end portion further comprises a connection portion 123 coupled so as to be free of eccentricity and refraction in the longitudinal direction. The method of claim 1, The elastic support portion 120, A support hole 131 which induces sliding through a central portion of the flat bottom side 130 in a rising / lowering direction; A support shaft 126 extending further in a longitudinal direction on one side of the working shaft 122 and sliding into the support hole 131 to slide; The flat bottom 130 is a spring 125 having an upward elasticity in the longitudinal direction of the support shaft 126, Is provided on one end of the operating shaft 122, the flat bottom opening and closing device of the rapid filter, characterized in that provided with a latching sheet 124 for supporting the spring (125).