KR200364785Y1 - Fluid filtration device of flux adjustor - Google Patents

Abstract

The present invention relates to a fluid filtering device for a flow rate control material, the flow rate control material for adjusting the flow rate of the fluid flowing in the hydraulic circuit mounted in the fluid cap hole formed to have an internal receiving space in the middle of the hydraulic circuit, the control material is the fluid A fluid blocking jaw protrudes from the outer circumferential surface to partition the inside of the cap hole to both sides, and a fluid guide hole for communicating the inside of the fluid cap hole partitioned to both sides by the fluid blocking jaw is formed therethrough. It is equipped with a fluid filtration member for filtering the fluid passing through it, it is possible to prevent the flow of the fluid by the impurities contained in the fluid, or to prevent internal pressure loss and damage to the internal device.

Description

FILID FILTRATION DEVICE OF FLUX ADJUSTOR}

The present invention relates to a fluid filtration device of the flow rate control material, and more particularly, a fluid filtration member which is mounted in the fluid cap hole of the main body of the hydraulic device constituting the hydraulic circuit to filter the fluid inside the control material for controlling the flow of fluid. The present invention relates to a fluid filtration device of a flow regulating material which removes impurities contained in a fluid to smoothly operate a hydraulic device and prevent damage caused by impurities.

Generally, a hydraulic device is a general term for a device constituting a hydraulic drive device, and includes various control valves, accumulators, fluid tanks, etc. in addition to a hydraulic pump, a hydraulic motor, and a hydraulic cylinder. Say the device.

For example, a door closer, which is one of the devices using such a fluid, is installed in a door door of an apartment or a plurality of fire doors installed in a building, and a piston installed therein moves the compression spring by an external force. It is a device that the door is automatically closed by pushing the piston by the elasticity of the compression spring itself if the external force is not transmitted.

1 is an exploded perspective view illustrating a door closer according to the related art, in which a piston accommodating part 111 is formed, and a fluid cap hole 113 recessed to a predetermined depth is formed at one side thereof, and a center is formed from the fluid cap hole 113. A fluid flow passage (not shown) is formed in communication with the part, and the main body 110 is formed in the thickness direction, that is, the support shaft insertion hole 116 penetrates at the center of the upper surface and the lower surface thereof, The through hole is formed and the other end of the valve hole 122 is formed so that the check valve 150 for adjusting the air volume can be installed, and the piston 120, the rack gear 124 is formed on one side of the outer peripheral surface, and the fluid cap hole 113 And a pinion gear 141 is formed at the center thereof so as to be engaged with the rack gear 124 by being inserted into the adjusting member 130, which is a metal material inserted into and installed in the support shaft insertion hole 116. Link portion 143 is formed to be coupled It was composed of shaft 140.

In addition, a plurality of fluid passages 117 are formed in the other end portion of the piston accommodating portion 111 and the fluid cap hole 113, and a fluid flow hole is formed at one end of the piston 120 in which the rack gear 124 is formed. 125 is formed through, and the piston receiving portion 111 is filled with fluid.

When the door is pushed out by applying a constant force to the door to open the door using the door closer 100 configured as described above, the support shaft 140 is connected to the door and a link (not shown) according to the rotation of the door. As the pinion gear 141 rotates and the rack gear 124 meshed with the pinion gear 141 rotates, the piston 120 moves to one end of the piston accommodating portion 111. At this time, as the piston 120 moves to one end, the compression spring 160 is also pushed to one end of the piston accommodating portion 111. Accordingly, the compression spring 160 is compressed to open the door, and the piston accommodating portion ( The fluid stored at one end of the 111 is moved to the other end of the piston accommodating part 111 through the valve hole 122. In this state, the user can go outside or enter.

When the door is opened by the above operation and the external force is not transmitted to the door, the piston 120 is moved to the other end of the piston accommodating part 111 by the elasticity of the compressed spring 160 which has been compressed. As the pinion gear 141 engaged with the rack gear 124 formed on the piston 120 rotates in reverse direction, the door is closed. At this time, the fluid introduced to the other end of the piston accommodating portion 111 flows back into one end of the piston accommodating portion 111.

However, when the door closer 100 of the prior art closes the door, the piston 120 moves to the other end of the piston accommodating portion 111 and at the same time the fluid filled in the other end of the piston accommodating portion 111 It moves to one end of the piston accommodating portion 111, and the fluid is in a state containing chips or other impurities by repeated use for a long time, and the fluid containing the impurities flows through the fluid passage 116. There is no means for collecting chips or impurities contained in the fluid when it is moved to one end of the piston accommodating portion 111 through the fluid control groove 132 formed in the regulating member 130 is blocked to smooth the fluid It could not be moved easily, and this may cause a change in speed at the same time the operation of the piston 120 is not smooth.

In addition, when the piston 120 moves to the other end of the piston accommodating portion 111, the fluid is supplied to the piston accommodating portion 111 by the repulsive force of the compression spring 160 while the check valve 150 blocks the valve hole 122 by the fluid pressure. The internal pressure is formed in this case, at which time some fluid is directly moved to one end of the piston accommodating portion 111 without passing through the fluid passage 117, thereby causing a pressure resistance loss of the door closer 100.

The object of the present invention devised in view of the above point is to install a fluid filtration member that can filter the fluid inside the control material for controlling the flow rate of the fluid to remove impurities contained in the fluid to smooth the circulation of the fluid It is to provide a fluid filtering device of the flow control material to be made.

1 is an exploded perspective view showing a door closer having a conventional structure;

Figure 2 is an exploded perspective view showing a door closer equipped with a fluid filtration device of the flow regulating material is an embodiment of the present invention,

3 is a cross-sectional view showing the adjusting material shown in FIG.

4 to 6 are cross-sectional views showing an operating state of the door closer shown in FIG.

4 is a cross-sectional view showing a state in which the door is opened;

5 is a cross-sectional view showing a state in which a piston closes the second speed flow opening;

6 is a cross-sectional view showing a state in which the door is closed;

FIG. 7 is a cross-sectional view illustrating the flow of a fluid by enlarging the portion “A” shown in FIG. 5;

8 is a cross-sectional view showing a fluid filtering device of a flow regulating material according to another embodiment of the present invention;

** Description of the symbols for the main parts of the drawings **

30: adjusting material 33: fluid guide hole

33c: fluid inlet 33d: fluid outlet

35: fluid blocking jaw 100: door closer

110: main body 111: piston housing

113: fluid cap hole 116: support shaft insertion hole

117: fluid passage 120: piston

124: rack gear 140: support shaft

141: pinion gear 150: check valve

In the fluid filtering device of the flow control material for achieving the object of the present invention as described above is mounted on the fluid cap hole formed to have an inner receiving space in the middle of the hydraulic circuit in the flow rate adjusting material for adjusting the flow rate of the fluid flowing in the hydraulic circuit, The adjusting member is formed by protruding the fluid blocking jaw on its outer peripheral surface so as to partition the inside of the fluid cap hole on both sides, and is formed through the fluid guide hole for communicating the inside of the fluid cap hole partitioned to both sides by the fluid blocking jaw, The fluid filtration member is mounted inside the fluid guide hole to filter the fluid passing therethrough.

As described above, the fluid filtering member is installed inside the flow regulating material to filter out impurities contained in the fluid, thereby preventing damage to the device due to impurities and smoothly circulating the fluid. Ash fluid filtration device may be mounted inside the device constituting all the hydraulic circuit and described as an example of the door closer.

Hereinafter, with reference to the accompanying drawings, the fluid filtration device of the flow regulating material which is a preferred embodiment of the present invention will be described in more detail as follows, and the same reference numerals for the same parts as in the conventional structure.

Figure 2 is a perspective view showing an exploded view of the door closer equipped with a fluid filtering device of the flow regulating material is an embodiment of the present invention, Figure 3 is a cross-sectional view showing the adjusting member shown in Figure 2, Figure 4 to Figure 6 is a cross-sectional view showing an operating state of the door closer shown in FIG. 2, FIG. 4 is a cross-sectional view showing an open state of the door, and FIG. 5 is a cross-sectional view showing a state in which the piston closes the second speed flow port. 6 is a cross-sectional view illustrating a state in which a door is closed, and FIG. 7 is a cross-sectional view illustrating a flow of a fluid by enlarging the portion “A” shown in FIG. 5.

As shown in FIGS. 2 and 3, the door closer equipped with the fluid filtration device according to the embodiment of the present invention has a piston accommodating portion 111 and a fluid cap hole 113 recessed at a predetermined depth is formed at one side thereof. And a fluid outflow passage (not shown) is formed in communication from the fluid cap hole 113 to the central portion, and a main body 110 having a support shaft insertion hole 116 penetrated in a thickness direction, ie, an upper surface and a lower surface thereof, and the piston. It is coupled to the receiving portion 111, one end of the through-hole is formed and the other end of the valve hole 122 is formed so that the check valve 150 for adjusting the amount of air is formed, the outer peripheral surface of the piston with a rack gear 124 is formed ( 120, the adjustment member 30 which is a metal material inserted into the fluid cap hole 113, and the pinion gear 141 at the center to be engaged with the rack gear 124 to be fitted into the support shaft insertion hole 116. ) And links are fitted at both ends. It was comprised by the support shaft 140 in which the link part 143 was formed.

In addition, a plurality of fluid passages 117 are formed in the other end portion of the piston accommodating portion 111 and the fluid cap hole 113, and a fluid flow hole is formed at one end of the piston 120 in which the rack gear 124 is formed. 125 is formed through, and the piston receiving portion 111 is filled with fluid. In addition, the fluid passage 117 is a fluid inlet suction port 117a which is sequentially penetrated toward the inside of the piston receiving portion 111, and the first speed flow opening 117b formed at one end of the fluid injection suction port 117a ), And the second speed flow opening 117c.

In addition, the adjusting member 30 is inserted into the fluid cap hole 113 and when the screw is coupled to the head portion 31 is exposed to the outside when the fixing groove 31a which is a control unit coupled to the driver in the longitudinal direction The O-ring 32 is inserted into the O-ring fixing part 32a which is formed to be recessed, and is recessed to a predetermined depth along the outer circumferential surface at a predetermined distance from the head part 31 and extends along the outer circumferential surface, and the O-ring 32 The male screw portion 30a is formed at a predetermined interval from the mounting portion and is screwed to the fluid cap hole 113. At this time, in addition to the fixing groove (31a) that is a tool support that can support the driver to the head 31, a knob, such as a wrench or a wrench, spanner, etc. that protrude so that the user can hold and turn by hand can be supported and rotated The tool support may be formed.

In addition, the middle portion of the adjusting member 30 is formed to be inclined to penetrate at a predetermined angle with respect to the central axis of the adjusting member 20, that is, the head 31 which is the other end of the adjusting member 30 is The first fluid guide hole 33a recessed by a predetermined depth to be inclined toward one end portion in the formed direction, and the first fluid guide hole is recessed by a predetermined depth in a direction perpendicular to the outer circumferential surface of the adjusting member 30. The fluid guide hole 33 formed of the second fluid guide hole 33b in communication with 33a and a sieve having a predetermined mesh to filter the fluid are formed to have a cup shape, The fluid filtration member 34 mounted inside the first fluid guide hole 33a and the openings at both ends of the fluid guide hole 33 protrude to a predetermined height and extend along an outer circumferential surface to define the opening. 33c) fluid blocking partitioned into the side and the fluid outlet 33d The jaw 35 and the fluid control groove 36 recessed inclined cross section at one end edge of the control member 30 in the direction of insertion. In this case, the fluid filtration member 34 is inserted into the fluid guide hole 33 and then compressed or manufactured by insert molding.

Hereinafter, reference numeral 119, which is not described, is a cover screwed to cover the opening of the piston accommodating portion 111.

The operation process of the door closer equipped with the fluid filtration device of the flow control material is a preferred embodiment of the present invention configured as described above are as follows.

When the door is pushed out by applying a constant force to the door to open the door by using the door closer installed in the door, as shown in FIG. 4, the pinion is connected to the door and the link by the support shaft 140 as the door rotates. As the gear 141 rotates and the rack gear 124 which is engaged with the pinion gear 141 moves at the same time, the piston 120 moves to one end of the piston housing 111 (in the left direction in the drawing). Will move. At this time, the piston 120 is moved to the left direction to push the compression spring 160 installed between one end of the piston 120 and the piston housing 111 to one end of the piston housing 111, accordingly As the compression spring 160 is compressed, the door is opened, and the fluid stored in one end of the piston accommodating portion 21 communicates with the through hole 121 formed through the central portion of the piston 120 and the through hole 121. The valve hole 122 is moved to the other end of the piston accommodating portion 111. This is because the check valve 150 installed in the valve hole 122 is located at the other side of the valve hole 122. Because it opens up

When the external force no longer acts on the door that has been opened by the above operation, the piston 120 is moved by the elasticity of the compression spring 160, which is compressed as shown in FIGS. The pinion gear 141 is moved to the other end (right direction in the drawing) and engaged with the rack gear 124 formed on the piston 120 and moving in the reverse direction as the piston 120 moves. When the door moves in the direction of closing and the piston 120 passes the second speed flow opening 117c, the closing speed of the door proceeds rapidly until the stage before the second speed flow opening 117c passes through the piston. The other end of the end portion 120 closes the second speed flow opening 117c and at the same time the fluid is compressed by the piston 120. In this process, a repulsive force acts on the piston 120, thereby speeding up the piston 120. Becomes late The door closes slowly.

At this time, the fluid flows only into the first speed flow port 117b and the piston 120 moves only to the other end of the piston accommodating portion 111 by an amount adjusted according to the degree of insertion of the adjusting material 30 inserted into the fluid cap hole 113. Then, the door is completely closed while the speed of the door is gradually operated until the step of closing the fluid inlet 117a through the first speed flow port 117b again.

As shown in FIG. 7, the fluid flowing into the other end of the piston accommodating part 111 (the right direction in the drawing) in the process of operating the door closer as described above is shown in FIG. 7 by the fluid passage 117. Into the fluid cap hole 113 through the second speed flow port 117c and the first speed flow port 117b of the), the fluid introduced into the fluid cap hole 113 is in the middle portion of the adjusting material 30 The fluid flows into the formed fluid inlet 33c, and the fluid introduced into the fluid guide hole 33 through the fluid inlet 33c passes through the fluid filtration member 34 to filter chips or impurities contained in the fluid. The filtered fluid is discharged into the fluid cap hole 113 through the fluid outlet 34d. In addition, the fluid leaked into the fluid cap hole 113 may not be mixed with a fluid containing impurities which are divided by the fluid blocking jaw 35 and which do not pass through the fluid filtering member 34.

The fluid filtered as described above and discharged into the fluid cap hole 113 is introduced into the fluid outlet passage 118 through the fluid adjusting groove 36 only by being adjusted by turning the adjusting member 30, and the fluid outlet passage 118. One end of the piston accommodating portion 111 through the fluid flow port 125 formed through the space formed so that the pinion gear 141 and the rack gear 124 is engaged through the through and through the outer peripheral surface of the piston 120 through In the left direction).

Likewise, another embodiment of the present invention, the fluid filtration device of the flow regulating material, as shown in FIG. 8, forms an Oringo part 37a at the place where the fluid blocking jaw 35 is formed in one embodiment of the present invention, By inserting the O-ring 37 into the O-ring fixing portion 37a, the O-ring 37 is configured to prevent the back flow of the fluid more effectively, thereby obtaining the same operation and effect as the embodiment of the present invention.

As described above, the fluid filtering device of the flow rate control member according to the present invention forms a fluid guide hole 33 in the control member 30, and a fluid having a sieve having a predetermined mesh in the fluid guide hole 33 in a cup shape. Since the filtration member 34 is mounted, the fluid introduced into the fluid inlet 33c of the fluid guide hole 33 passes through the fluid filtration member 34 to filter out impurities such as chips contained in the fluid. Only the filtered fluid passes through the fluid filtration member 34 to the fluid outlet 34d, and the filtered fluid passes through the fluid control groove 36, thereby clogging the fluid control groove 36 by impurities. At the same time, the pressure loss and damage caused by the impurities contained in the fluid are prevented.

As described above, in the fluid filtration device of the flow rate control material according to the present invention, the fluid introduced into the fluid inlet of the fluid guide hole filters impurities such as chips contained in the fluid while passing through the fluid filtration member. By passing through the filtration member to the fluid outlet, the fluid filtered by the fluid filtration member passes through the fluid control groove, compared to the conventional structure without a separate fluid filtration device, thereby preventing the middle of the flow path by the impurities clogging. At the same time, pressure loss and damage caused by impurities contained in the fluid are prevented, thereby extending the service life of the product and improving the reliability of the product.

Claims (6)

In the flow rate control material for adjusting the flow rate of the fluid flowing in the hydraulic circuit is mounted in the fluid cap hole formed to have an internal receiving space in the middle of the hydraulic circuit, The adjusting member is formed by protruding the fluid blocking jaw on its outer peripheral surface to partition the inside of the fluid cap hole to both sides, A fluid guide hole for communicating the inside of the fluid cap hole partitioned to both sides by the fluid blocking jaw is formed through, And a fluid filtration member for filtering the fluid passing through the fluid guide hole. The fluid filtration apparatus of claim 1, wherein the fluid guide hole is formed to be inclined at a predetermined angle with respect to the central axis of the adjusting member at an intermediate portion of the adjusting member. The fluid filtering device of the flow rate control material according to claim 1, wherein the fluid filtering member is composed of a sieve having a predetermined mesh. The fluid filtration apparatus of claim 1, wherein an end portion of the adjustment member exposed to the outside of the fluid cap hole includes an adjustment unit formed to rotate the adjustment member. The fluid filtration device of claim 4, wherein the control part comprises a knob that protrudes to allow the user to hold and rotate by hand. 5. The fluid filtration apparatus of claim 4, wherein the control unit is composed of a tool supporter that is coupled to each tool shape and can support the tool.