KR200337569Y1 - Vertically movable sink structure - Google Patents

Abstract

The present invention relates to a lifting sink structure, wherein the sink is a sink structure on the sink support base, and is inserted into the hollow guide tube and the hollow guide tube at the center of the top surface and four corners of the bottom plate of the sink support cabinet to be hollow. A guide means composed of an elevating column which slides up and down in the guide tube is installed, and a bottom surface of the sink is integrally attached to the upper end of the elevating column of the guide unit by welding. Elevating means is provided.

Description

Retractable sink structure {VERTICALLY MOVABLE SINK STRUCTURE}

The present invention relates to a lifting sink structure, and more particularly, to a lifting sink structure is configured so that the sink is detachable from the sink support and at the same time can be lifted by the lifting means.

In general, the sink is installed on the sink base, the height of which is fixed to the average height of the woman who mainly uses the sink. Therefore, when the user's height is significantly larger or smaller than the average, the user must bend the waist or lift the shoulders, causing pain in the user's back and shoulders.

In order to improve this problem, it has been developed to install the adjustment screw on the leg of the sink supporter to adjust the height of the sink supporter, but this also has the problem that it is possible to adjust the adjustment screw only during the initial installation of the sink supporter. . In more detail, the inside of the sink base is equipped with a bowl of pots, pans, etc., so that the weight of the sink base is considerably high, and thus, it is difficult to adjust the adjustment screw supporting the weight by the user. In particular, among the four legs supporting the sink base, there is a considerable difficulty in adjusting the adjustment screw attached to the two legs inside the sink base by the user.

Therefore, when someone other than the housewife, ie husband, child, relative, friend, etc., washes the dishes, and the person who washes the dishes has a large height difference from the housewife, each time the adjustment is placed on the sink legs of the sink Adjusting the screws is a very cumbersome and laborious task, so most users will suffer pain in the lower back or shoulders without adjusting the height of the sink.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a sink structure in which the sink is detachably installed with respect to the sink support and at the same time, the sink structure is installed by the lifting means in the sink support. .

1 is an exploded perspective view of a liftable sink structure according to the present invention;

2 is a combined perspective view of the liftable sink structure according to the first embodiment of the present invention;

Figure 3 is a longitudinal sectional view of the lifting means of the lifting sink structure according to the first embodiment of the present invention,

Figure 4 is a cross-sectional view of the lifting means of the lifting sink structure according to the first embodiment of the present invention,

5A is an enlarged view of a portion A of FIG. 3,

5B is an enlarged view of a portion B of FIG. 3,

Figure 6 (a) is a cross-sectional view of the pressure ring of the lifting means of the lifting sink structure according to the first embodiment of the present invention,

Figure 6 (b) is a cross-sectional view of the locking ring of the lifting means of the lifting sink structure according to the first embodiment of the present invention,

7 is a combined perspective view of the liftable sink structure according to the second embodiment of the present invention;

8 is a longitudinal sectional view of the lifting means of the lifting sink structure according to the second embodiment of the present invention;

9 is a combined perspective view of the liftable sink structure according to the third embodiment of the present invention, and

10 is a longitudinal sectional view of the lifting means of the lifting sink structure according to the third embodiment of the present invention.

In order to achieve the object as described above, the lifting sink structure according to the present invention, the sink is a sink structure on the sink base, the center of the upper surface and the four corners of the bottom plate of the sink base, and the hollow guide tube The guide means is inserted into the hollow guide tube and made of a lifting column which slides up and down in the hollow guide tube is installed, the bottom surface of the sink is integrally attached to the upper end of the lifting column of the guide means by welding, The elevating means is provided in the center guide means among the guide means.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described, referring drawings for an Example.

In the lifting sink structure according to the present invention, the guide means are installed at the center of the top surface and the four corners of the bottom plate of the sink base, and the bottom of the sink is integrally attached by welding to the upper end of the lifting column of the guide means. The lifting means are provided in the guide means.

As shown in FIG. 1, the guide means includes a hollow guide tube 31 and a lifting column 33 inserted into the hollow guide tube 31 to slide up and down within the hollow guide tube 31. have. The hollow guide tube 31 has a flange 31a formed at its bottom, and the flange 31a is fixed to the center of the top surface of the bottom plate 11 of the sink base 10 by four bolts and to four corners. It is fixed on the bottom plate 11 of the sink base 10. In addition, the bottom surface of the sink 20 is integrally attached to the upper end of the elevating column 33 by welding.

Since only the guide means 30 is simply installed in four corners of the upper surface of the bottom plate 11 of the sink base 10, and the lifting means are provided at the center of the upper surface of the bottom plate 11 of the sink base 10. The sink 20 is moved up and down vertically.

In addition, the bottom of the sink 20 is connected to the expansion pipe 40 for discharging water to the outside in the sink 20, the expansion pipe 40 is connected to the bottom plate 11 of the sink base 10 It extends to the outside through the formed through hole 11a.

2 to 6 illustrate a sink structure according to a first embodiment of the present invention. The sink structure according to the first embodiment uses a hydraulic pump device as the lifting means for lifting up and down the lifting column 33 which is integrally attached to the center bottom of the sink 20 by welding.

The cover 101 is oil-tightly coupled by a bolt while oil-tightly surrounding the lifting column 33 at the upper end of the hollow guide tube 31 provided in the center of the upper surface of the bottom plate 11 of the sink base 10. The fluid chamber 102 is formed in the upper part of the hollow guide tube 31, and the pump cylinder 103 which communicates with this fluid chamber 102 is formed in the lower one side, and this pump is provided in the lower ground side. The main cylinder 105 which communicates with the cylinder 103 and the communication hole 104 of a small hole is formed. The pump piston 106 is inserted through the pump cylinder 103 so as to be slidable. A pedestal 107 is attached to the upper end of the pump piston 106, and a coil spring 108 is provided between the pedestal 107 and the hollow guide pipe 31 to always provide the pump piston 106. Pressurize upwards. In addition, the middle portion of the pump piston 106 is formed with a large diameter partition 106a so as to be in close contact with the inner circumferential surface of the pump cylinder 103 and to be slidable, and similarly to the inner circumferential surface of the pump cylinder 103 at the lower end thereof. The large-diameter division part 106b is formed so that it may be in close contact and sliding.

Between the partition part 1066a and the partition part 106b, it is formed with the small diameter, and forms the annular space | gap part 109 partitioned with the pump cylinder 103. As shown in FIG. In addition, in each partition part, as shown in detail in FIG.5 (a), the some notch distribution groove | channel 110a ..., 110b ... is formed in the outer peripheral surface. Furthermore, an annular groove 111 having an appropriate width is formed above the partition portion 106b positioned below, and in this annular groove 111, a piston ring 112 is formed on the inner wall surface of the pump cylinder 103. It is fitted so that it can slide in an up-down direction in the state pressurized by. The width of the annular groove 111 has a moving width of the piston ring 112 corresponding to the moving stroke of the pump piston 106 corresponding to the operating ranges of I to II of the operating lever 122 described later. An escape mechanism is formed as the groove 111 and the piston ring 112. And, when the piston ring 112 is in close contact with the upper surface of the annular groove 111, the lower opening surface of the annular cavity 109 is sealed, whereby the pump cylinder 103 is blocked so that the upper and lower In addition, when the piston ring 112 deviates from the upper end surface of the annular groove 111, the distribution grooves 110b... Of the annular void portion 109 and the lower partition portion 106b are formed by the piston ring ( Since the inner circumferential surface of 112 has a bottom portion of the annular groove 111 and a gap 134, it is in communication with the gap 134.

In this case, the lower part of the fluid chamber 102 and the pump cylinder 103 is the distribution groove 110a ..................... formed in the upper division part 106a, the annular space | gap part 109, the annular groove 111, and the lower division. It communicates with each other via the distribution grooves 110b ... of the part 106b. The pump cylinder 103 and the main cylinder 105 are connected via a communication hole 104, and the communication hole 104 is provided with an opening / closing valve mechanism 113 which is a check valve mechanism. The opening / closing valve mechanism 113 is shown in detail in FIG. 5 (a), and in the following description, the communication hole 104 is provided with a valve hole 114 which is continuous with the pump cylinder 103. In the valve hole 114, a valve seat 115 is formed at the communication hole 104 side. The valve seat 116 is pressed against the valve seat 115 so as to be in contact with and detachable from the communication hole 104 side.

The valve body 116 has an inclined surface 116a for opening and closing the valve hole 114, and has a pressurizing portion 116b at a distal end of the inclined surface 116a, and has a through hole 117 in the pressing portion 116b. ) Extends laterally from its tip surface. In addition, one end of the coil spring 118 is press-contacted to the valve body 116, and the other end of the coil spring 118 is in contact with the sealing body 119. Accordingly, the valve body 116 is always pressurized to seal the valve hole 114. In addition, a return groove 120 for return is formed on one side of the lower end of the pump cylinder 103, and the flow groove 120 communicates with the through hole 117. The length of the distribution groove 120 is greater than the length of the upper surface of the annular groove 111 from the lower surface of the pump piston 106. In addition, a part of the pressurizing portion 116b of the valve body 116 protrudes into the pump cylinder 103, and is pushed down by the pump piston 106 when the pump piston 106 is lowered to the lowest end. It is meant to be built. At this time, the valve hole 114 is opened, and at the same time, the through hole 117 provided in the valve body 116 is continuous to the distribution groove 120. Then, the elevating column 33 is inserted into the main cylinder 105 so that the elevating column 33 can elevate, and the elevating column 33 protrudes from the upper end of the main cylinder 105 and penetrates through the fluid chamber 102 to provide a hollow guide tube. It protrudes on the upper part of 31. The communication hole 104 is opened below the main cylinder 105.

In addition, the operating lever 122 protrudes outward from the upper portion of the hollow guide tube 31. The actuating lever 122 is formed in an approximately C shape, and both ends thereof are fixed to the shafts 122a and 122b. The pump pressurizing arms 123 are integrally connected to the shafts 122a and 122b so as to be located in the fluid chamber 102 in the hollow guide tube 31. The pressure sub-pressure 123 forms a c-shape so as to be located on the outer circumferential surface of the lifting column 33, and the middle portion thereof is in contact with the upper surface of the pump piston 106 as shown in FIG. Further, pressing portions 124 and 124 (only one end is shown) are formed at both ends of the pressing arm 123 to protrude downward. In addition, the pressing units 124 and 124 are configured to pressurize the locking mechanism 125 in accordance with the rotation of the operating lever 122.

The locking mechanism 125 is formed in the fluid chamber 102 of the hollow guide tube 31, and the hollow guide tube 31 is recessed so as to surround the lifting column 33 above the main cylinder 105. 126 is formed. And the locking ring 127 shown in detail in FIG.6 (b) is fitted in this recessed part 126. As shown in FIG. The locking ring 127 is an annular body formed of an elastic material such as rubber or a soft synthetic resin material, and the lifting column 33 is fitted into the through hole 127a formed at the center thereof. The locking ring 127 is provided with a V-shaped groove 128 having an open upper surface throughout. In addition, the locking ring 127 is provided with a plurality of cutouts 129 to facilitate elastic deformation. On the upper surface of the locking ring 127, the pressing ring 130 shown in (a) of FIG. 6 overlaps. The pressing ring 130 has rigidity, and its lower surface has a V-shaped inclined protrusion 131 fitted into the V-shaped groove 128 of the locking ring 127 over its entirety. In addition, the lifting column 33 is slidably inserted into the through hole 130a formed in the center of the pressing ring 130. In addition, the auxiliary ring 132 is superimposed on the upper surface of the pressure ring 130, this auxiliary ring 132 is also formed of a rigid material. The auxiliary ring 132 is positioned so that the opposing positions of the auxiliary ring 132 abut on the pressing portions 124 and 124. Also, in the drawings, reference numeral 133 denotes an O ring.

Subsequently, the operation of the lifting device configured as described above will be described.

When the operation lever 122 is in the position I of FIG. 2, the lifting column 33 is locked by the locking device 125. In this state, the piston ring 112, which is slidably fitted into the annular groove 111 of the pump piston 106, is lowered in the annular groove 111 by the operation lever 122 being raised to position I. Abuts on the side Then, when the operation lever 122 is pushed down from the position of I to II, the pressing portions 124 and 124 of the pressing arm 123 release the pressing of the auxiliary ring 132, and thus the pressing ring 130 It is returned by the elastic force of the locking ring 127, and thus the locking ring 127 releases the lifting column 33. As shown in FIG. However, the piston ring 112 does not move immediately at the lower end of the annular groove 111 in contact with the lower end surface of the annular groove 111 until it comes into contact with the upper end surface of the annular groove 111. To start the move. In other words, while the operating lever 122 moves from the position I to the position II, the piston ring 112 is pressed against the inner wall of the pump cylinder 103 by its own tension, and thus stops. The air gap 109 communicates with the inside of the pump cylinder 103 through the annular groove 111 and the gap 134.

As a result, for the operation from the I to II positions of the actuating lever 122, the fluid in the pump cylinder 103 does not compress and escapes into the fluid chamber 102. Then, when the operating lever 122 reaches the position of II, the upper surface of the annular groove 111 is in close contact with the piston ring 112, whereby the communication is blocked. That is, between the I-II positions of the operating lever 122 is in a non-operating state of the pump, so that the locking device 125 can be smoothly released without being affected by the pump portion. Then, the operation lever 122 repeats the lifting operation at a predetermined speed in a range from the position shown in II in FIG. 2 to the position shown in III. Then, the pump pressure arm 123 connected to the actuating lever 122 pushes down the pump piston 106, and the pump piston 106 is lifted by the return force of the coil spring 108. The pump piston 106 repeats the lifting movement, that is, the pumping operation. When the pump piston 106 is lowered, the piston ring 112 mounted on the annular groove 111 is stopped by its own tension, so that the piston ring 112 comes into contact with the upper surface of the annular groove 111. The air gap 109 is sealed.

As a result, when the pump piston 106 is lowered in this state, the piston ring 112 is integrally lowered with the pump piston 106 and lowered in the pump cylinder 103 under the pump piston 106. The fluid is to be compressed. Then, the pressure-increased fluid pushes down the valve body 116 of the on-off valve mechanism 113 against the coil spring 118, and because of this, the valve hole 114 is opened, so that the fluid flows through the valve hole 114 and the communication hole. It is introduced into the main cylinder 105 through the 104. In addition, when the pump piston 106 is raised, the piston ring 112 comes into contact with the lower surface away from the upper surface of the annular groove 111, and thus the annular cavity 109 is opened. However, when the pump piston 106 rises, the pump cylinder 103 becomes negative pressure, and the valve body 116 seals the valve hole 114, so that the fluid filled in the fluid chamber 102 is in the distribution groove. (110a ...), the annular void portion 109, the annular groove 111 and the distribution groove (110b ...) is introduced into the pump cylinder 103. In this way, the fluid is pumped into the main cylinder 105 by the lifting motion of the pump piston 106. And when the oil pressure in this main cylinder 105 becomes high, the lifting column 33 will raise sequentially by this oil pressure.

Next, when the lifting column 33 is raised to a desired position and the operating lever 122 is released, the pump piston 106 is pressed upward by the coil spring 108 to the position shown in FIG. Ascend automatically. Then, the pressurizing portions 124 and 124 of the pump pressure arm 123 connected to the operation lever 122 stop while pressing the auxiliary ring 132. The auxiliary ring 132 pressurizes the pressure ring 130. Then, the protruding portion 131 formed in the pressing ring 130 enters into the V-shaped groove 128 of the locking ring 127, and therefore, the V-shaped groove 128 is pressed to expand. However, the locking ring 127 is not only formed of an elastic material but also inserted in the concave groove 126 so that the locking ring 127 is extended in the radial direction, thereby being elastically pressed against the outer circumferential surface of the lifting column 33. As a result, the lifting column 33 is held by the locking ring 127 to restrain its movement.

Next, when attempting to lower the lifting column 33, the operation lever 122 is pushed down to the lowest position, that is, the position shown by IV in FIG. Then, in the range from the first I to II, when the pressing force to the pressure ring 130 is released as described above, the pressing ring 130 through the protrusion 131 by the elastic force of the locking ring 127. It is pressed upward and returned, and the locking ring 127 itself also returns to its original natural state to release the restraint of the lifting column 33. Next, the lift column 33 slightly rises by the pump operation by the lowering to the III position of the actuating lever 122, but the pump piston 106 is pumped by the arrival of the IV position of the actuating lever 122. Abuts the bottom of 103). Thereby, the valve body 116 which protrudes in the pump cylinder 103 is pressurized, and the valve hole 114 is opened. Then, since the through hole 117 is formed in the pressurizing part 116b of the valve body 116 from the side surface to the upper surface, fluid flows through the through hole 117.

However, the through hole 117 is continuous to the distribution groove 120 formed on one side of the pump cylinder 103, and the distribution groove 120 is the upper surface of the annular groove 111 from the lower surface of the pump piston 106. Since it is formed longer than the length over, through-hole 117 is eventually communicated with the annular cavity 109 through the distribution groove. The fluid in the main cylinder 105 flows through the communication hole 104, the valve hole 114, the through hole 117, the distribution groove 120, the annular gap portion 109, and the upper partition portion 106a. It returns to the fluid chamber 102 through the groove 110a. Then, the lifting column 33 moves down as the hydraulic pressure in the main cylinder 105 decreases. In addition, at this time, since the respective passages are narrowly formed, the flow rate limiting action is prevented, thereby preventing the sudden drop of the lifting column 33 and generating a buffering action.

7 and 8 illustrate a sink structure according to a second embodiment of the present invention. The sink structure according to the second embodiment uses the rack pinion device as the lifting means for lifting and lowering the lifting column 33 which is integrally attached to the center bottom of the sink 20 by welding.

On one side of the outer circumferential surface of the lifting column 33 which is integrally attached to the center bottom of the sink 20 by welding, the rack 218 is formed along the longitudinal direction.

In addition, the gear box 213 is fitted to the outside of the upper end of the hollow guide tube (31). The worm shaft 220 penetrates through the gearbox 213 in a radial direction, and the crank handle 212 is connected to the gearbox outer end of the worm shaft 220, and the inner end of the gearbox of the worm shaft 220 is connected. The worm 221 is formed therein. The pinion 219 is engaged with the lower part of the worm 21, and the pinion 219 is engaged with the rack 218 of the lifting column 33. When the pinion 219 rotates, the rack 218 moves up and down. Therefore, the pinion 219 moves the rack 218 up and down by the rotation operation of the crank handle 212, and the lifting column 33 moves up and down.

The hollow guide tube 31 under the gearbox 213 is provided with a locking protrusion 233 by a hinge, and the locking protrusion 233 is formed through the through hole 31b formed in the hollow guide tube 31. The rack 218 of the lifting column 33 is caught. Thus, the locking projection 233 is locked to the rack 218 of the lifting column 33, the vertical position of the lifting column 33 is fixed.

9 and 10 illustrate a sink structure according to a third embodiment of the present invention. The sink structure according to the third embodiment uses a motor screw device as the lifting means for lifting up and down the lifting column 33 which is integrally attached to the center bottom of the sink 20 by welding.

The lifting column 33, which is integrally attached to the center bottom of the sink 20 by welding, is formed in a hollow shape, and a screw nut 330 is fixed to the lower end thereof.

In addition, a motor 310 is installed at the lower end of the hollow guide tube 31 so that its rotating shaft 311 faces upward, and the screw 313 which engages with the screw nut 330 of the sink 20 is attached to the rotating shaft 311. ) Is extended. When the screw 313 rotates, the screw nut 330 is moved up and down. Therefore, the lifting support 33 moves up and down by the screw 313 moving the screw nut 330 up and down by the forward and reverse rotation of the motor 310.

Although not shown, since the electromagnetic brake is provided inside the motor 310, the rotation shaft 311 of the motor 310 is kept in a stopped state, and thus the up and down positions of the lifting column 33 are also fixed.

The forward and reverse rotation of the motor 310 may be operated by a pedal switch 340 installed under the sink support 10.

According to the above-described lifting sink structure of the present invention, since the sink is detachably installed with respect to the sink support base and is installed to be liftable by the lifting means in the sink support base, the height of the sink is changed according to the height of the user. It can be adjusted easily.

Claims (4)

As a sink structure in which the sink 20 is installed on the sink base 10, It is inserted into the hollow guide tube 31 and the hollow guide tube 31 at the center and four corners of the upper surface of the bottom plate 11 of the sink base 10, and up and down within the hollow guide tube 31. Guide means consisting of the lifting column 33 to slide is installed, The bottom surface of the sink 20 is integrally attached to the upper end of the lifting column 33 of the guide means by welding, Sink structure, characterized in that the lifting means is provided in the center guide means of the guide means. According to claim 1, The lifting means is a hydraulic pump device, the hydraulic pump device, A fluid chamber 102 formed in the hollow guide tube 31 by being cover fluidly coupled to the upper end of the hollow guide tube 31 while being oil-tightly enclosing the lifting column 33. A pump cylinder 103 having one end connected to the fluid chamber 102 and the other end connected to the main cylinder 105 for receiving the lifting column 33 slidably through the check valve 116; A pump piston 106 which is accommodated in the pump cylinder 103 so as to be lifted and lowered, and which is operated by the return by the pressing force and the spring force through the pressure arm 123 interlocked with the operation of the operation lever 122; An annular cavity 109 formed on the outer circumferential surface of the middle portion of the pump piston 106 and communicating with the fluid chamber 102 through an upper flow groove 110a; One end is connected to the annular cavity 109 and the other end is formed with an annular groove 111 formed on the outer circumferential surface of the pump piston 106 to communicate with the lower end of the pump piston 106 through the lower distribution groove 110b. , It is provided with a piston ring 112 which is inserted into the annular groove 111 so as to be able to slide up and down and pressurized on the inner circumferential surface of the pump cylinder 103 and at the same time forming a bottom and a gap 134 of the annular groove 111. The piston ring (112) seals the annular cavity (109) only when the pump piston (106) is pressed so that the fluid in the pump cylinder (103) is pressurized. According to claim 1, The lifting means is a rack pinion device, and as the rack pinion device, On one side of the outer circumferential surface of the elevating column 33, a rack 218 is formed in the longitudinal direction as a whole. A gear box 213 is fitted to the outside of the upper end of the hollow guide tube 31, The worm shaft 220 is penetrated in the gear box 213 in the radial direction, The crank handle 212 is connected to the outer end of the gearbox of the worm shaft 220, The worm 221 is formed at the inner end of the gearbox of the worm shaft 220, The pinion 219 is engaged with the lower part of the worm 21, The pinion 219 is engaged with the rack 218 of the lifting column 33, The hollow projection tube 31 below the gear box 213 is provided with a locking projection 233 by a hinge, The locking projection 233 is a sink structure, characterized in that the latch 218 of the elevating column (33) through the through hole (31b) formed in the hollow guide tube (31). According to claim 1, The lifting means is a motor screw device, the motor screw device, The lifting column 33 is formed in a hollow and the screw nut 330 is fixed to the lower end, At the lower end of the hollow guide tube 31, the motor 310 is installed so that the rotating shaft 311 is upward, The rotating shaft 311 is formed with a screw 313 extending to engage the screw nut 330 of the sink 20, A sink structure, characterized in that the pedal switch 340 is installed under the sink support (10).