KR20210028764A - Monitor up and down table with prevention of noise and minute height adjustable - Google Patents

Abstract

The present invention relates to a mobile lifting table capable of preventing noise and finely adjusting a height, in which height of a pedestal for supporting a monitor can be finely adjusted and which is not limited to an installation place. To this end, the mobile lifting table capable of preventing noise and finely adjusting a height comprises: a base frame including lower guide rails formed on both sides at the front and back; a lifting frame disposed on an upper portion of the base frame to be lifted and including upper guide rails formed on both sides at the front and back; a pedestal installed on an upper portion of the lifting frame; a parallel extension link on which first and second links are crossed with a cross pin, wherein one end portions of the first and second links are connected to the base frame to be rotatable to lift the pedestal and the other ends of the first and second links are connected to be able to move along the upper and lower guide rails; an actuator connected to expand and contract the parallel extension link; and a push button connected to expand and contract the actuator, wherein the base frame includes a lower frame forming a closed line since four channel end portions are connected to each other and lower guide rails provided on internal surfaces at the front and back of the lower frame. Therefore, according to the present invention, when a user presses the push button with both hands, a gas shock absorber operates without the supply of power, and thus, the height of the pedestal can be finely adjusted by increasing or decreasing the parallel extension link without a restriction on the installation place, and the guide rails are provided by the base frame and the lifting frame which form a closed line so that the present invention can be firmly installed on an object and can firmly support the pedestal, thereby being very useful.

Description

Movable lift table with noise prevention and fine height adjustment {MONITOR UP AND DOWN TABLE WITH PREVENTION OF NOISE AND MINUTE HEIGHT ADJUSTABLE}

The present invention relates to a movable lifting table capable of preventing noise and finely adjusting the height, and more particularly, to finely adjust the height of a pedestal for supporting books, documents, or monitors, and to prevent noise and finely adjust the height without being limited by the installation location. It relates to a mobile lifting table.

As is well known, a monitor is a common term for a'display device', and is used by placing it on the top of a desk in a home or company and connecting it to a computer body.

In recent years, a monitor stand that supports a high monitor has been widely used in order to prevent the correct posture of users who use a computer for a long time, disks, and turtle neck syndrome.

In addition, as the incidence of metabolic syndrome increases in people who sit for a long time and work for a long time, a pedestal that can adjust the height of the monitor so that they can stand up and work is being used.

As a prior art of such a height-adjustable pedestal, the Republic of Korea Utility Model No. 20-2008-0003533 (published on August 26, 2008)'monitor elevating device' has been disclosed.

The prior art, as described in claim 1, "a case with an open upper part;

A plurality of guide rods installed in the case; An elevating member inserted into the guide rod and capable of elevating and descending along the guide rod; A flow prevention device inserted between the guide rod and the elevating member and coupled with the elevating member to prevent flow during elevating and descending and to reduce friction; A guide rail formed in the case; A driving motor installed on the elevating member and having a driving shaft engaged with the guide rail; A controller that controls the drive motor according to a set program; A relay installed on one side of the case to stop driving the driving motor when it comes into contact with the elevating member; And an operation switch unit connected to the controller to operate the driving motor.

As a conventional technology of another height-adjustable pedestal, the Republic of Korea Utility Model Registration No. 20-0221058 (Dongrok dated February 7, 2001)'a monitor lifting device for a multipurpose desk' has been disclosed.

However, since the above-described conventional technology necessarily requires power when operating the driving motor, there are problems such as cost burden due to power supply, restrictions on installation locations, and noise generated when driving the driving motor.

(0001) Republic of Korea Public Utility Model No. 20-2008-0003533 (Publication date August 26, 2008) (0002) Republic of Korea Utility Model Registration No. 20-0221058 (Date of registration, February 7, 2001)

The present invention was conceived to solve the conventional problems as described above, and an object of the present invention is to finely adjust the height of a pedestal for supporting books, documents, or monitors without supplying power to make it comfortable while sitting or standing up. The goal is to provide a movable lift table that can be used to prevent noise and finely adjust the height, which can be used not only for office work, but also for convenient use by moving without being restricted by objects such as desks and tables.

In order to achieve the above object, the present invention is a base frame having lower guide rails on both front and rear sides, an elevating frame having upper guide rails on both sides of the base frame so as to be elevating, and installed on the upper side of the elevating frame. A support, one end is rotatably connected to the base frame so as to elevate the base, and the other end is a parallel extension link in which first and second links movably connected along the upper and lower guide rails cross pins , An actuator connected to expand and contract the parallel expansion link, and a push button connected to operate the actuator, wherein the base frame includes a lower frame having four channel ends connected to form a closed line, on the front and rear inner surfaces of the lower frame It is a technical idea to include the provided lower guide rail.

In order to achieve the above object, the present invention is a base frame having lower guide rails on both front and rear sides, an elevating frame having upper guide rails on both sides of the base frame so as to be elevating, and installed on the upper side of the elevating frame. A support, one end is rotatably connected to the base frame so as to elevate the base, and the other end is a parallel extension link in which first and second links movably connected along the upper and lower guide rails cross pins , An actuator connected to expand and contract the parallel expansion link, and a push button connected to operate the actuator, wherein the actuator is rotatably connected to the second link and a tube in which an expansion valve is embedded, and the tube expands and contracts along the tube. A plunger having an operation rod at an outer end of the plunger that is connected so as to operate the telescopic valve, a bracket connected to the first link to support the plunger, and rotatably connected to the bracket to regulate the operation of the operation rod. It is a technical idea to include a lever rotated by a push button and an elastic member elastically restoring the lever rotated by the push button.

The lifting frame of the present invention may include an upper frame having four channel ends connected to form a closed line, and an upper guide rail provided on the front and rear inner surfaces of the upper frame.

One end of the first link of the present invention may be rotatably connected to the lower link plate with a lower link pin, and the other end may be connected to the upper guide rail in a rolling motion with an upper driving wheel.

One end of the second link of the present invention may be rotatably connected to the lower guide rail with a lower drive wheel and the other end may be rotatably connected to the upper link plate with an upper link pin.

The front and rear first links of the present invention are connected by a balance bar to maintain a balance when elevating.

Buttonholes are formed on both sides of the pedestal of the present invention, and push buttons may be installed on both sides of the bottom of the pedestal adjacent to the buttonhole.

According to the present invention implemented with the above-described solution, when the push button is pressed, the gas shock absorber is operated without power supply, thereby reducing noise generation, enabling quiet and stable use, and at the same time, the height of the pedestal is finely adjusted, so that the height desired by the user can be adjusted. There is a very useful effect that can increase the convenience of use.

In addition, according to the present invention embodied by the above-described solution, the effect of being able to be easily moved and installed easily regardless of objects including a desk, a floor, or various tables, and the base frame and the elevating frame eliminate the closed line. Since it is provided with a guide rail, there is an effect that it can be firmly installed on the object and firmly support the pedestal.

In addition, according to the present invention embodied by the above-described solution, the front and rear first links are connected by a balance bar to maintain a balance when lifting and lowering, and since the push button is operated by putting both hands through the buttonhole, it is possible to provide convenience of operation. Has a very useful effect.

1 is a perspective view showing an overall form according to an embodiment of the present invention.
Figure 2 is a perspective view showing a base frame, an elevating frame and a parallel extension link according to an embodiment of the present invention.
Figure 3 is a front view showing the front according to the embodiment of the present invention.
Figure 4 is a side view showing a right side according to an embodiment of the present invention.
Figure 5 is a bottom view showing a bottom surface according to an embodiment of the present invention.
6 is a cross-sectional view showing a cross-sectional view taken along line AA of FIG. 1.
7 is an enlarged elevational view showing an actuator according to an embodiment of the present invention.
8 is an operation diagram showing the operation of the actuator according to the embodiment of the present invention.
9 is an operation diagram showing an operating state according to an embodiment of the present invention.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as limited to the embodiments described in detail below. This embodiment is provided to more completely describe the present invention to those with average knowledge in the art.

Accordingly, the shape of the constituent elements expressed in the drawings may be exaggerated to emphasize a more clear description. It should be noted that in each drawing, the same member may be indicated by the same reference numeral. In addition, detailed descriptions of known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is a base frame 100 having a lower guide rail 120 on both sides of the front and rear, and the elevation frame 200 having an upper guide rail 220 on both sides of the base frame 100 so as to be elevating. , One end is rotatably connected to the base frame 100 so as to elevate the pedestal 300 installed on the upper part of the elevating frame 200, and the other end of the upper and lower guide rails 220, 120 ), the first and second links 410 and 420 connected to be movable along the cross pin 430 cross pins 430 parallel extension links 400, parallel extension links 400 are connected to expand and contract the actuator, the actuator It includes a push button 600 connected to the operation cable 610 to operate.

The base frame 100 is a configuration that forms the basis of the present invention, and the base frame 100 includes a lower frame 110 forming a closed line, and a lower guide rail 120 provided on the front and rear inner surfaces of the lower frame 110 Including, it may be installed on a desk, a floor, or an object (O) including various tables.

Referring to FIGS. 2 and 5, the lower frame 110 forms a so-called closed line formed in a “□” shape by connecting ends of four channels formed in a ‘ㄴ’-shaped cross-section. A plurality of holes (H) are perforated in the lower frame 110 and are fixed with screws to an object (O) such as a desk to be fixed.

The lower guide rail 120 is formed horizontally long and is provided on the front and rear inner surfaces of the lower frame 110, respectively. A lower driving wheel 421 provided on the second link 420 of the parallel extension link 400 is movably connected to the lower guide rail 120. 5 and 9, the lower link plate 121 arranged vertically is closed at the left end of the lower guide rail 120 so that the lower end of the first link 410 can be rotated with the lower link pin 412 Connected to each other.

The elevating frame 200 is disposed to be elevating on the upper portion of the base frame 100 to support the pedestal 300. The lifting frame 200 includes an upper frame 210 forming a closed line and an upper guide rail 220 provided on the front and rear inner surfaces of the upper frame 210.

2 and 5, the upper frame 210 forms a closed line formed in a'□' shape by connecting four channel ends formed in a'ㄴ' cross-section. A plurality of holes H are perforated in the upper frame 210 and fixed to the pedestal 300 with screws.

The upper guide rail 220 is horizontally elongated and provided on the front and rear inner surfaces of the upper frame 210, respectively. An upper driving wheel 411 provided in the first link 410 of the parallel extension link 400 is movably connected to the upper guide rail 220. Referring to FIG. 9, the upper link plate 221 disposed vertically is closed at the left end of the upper guide rail 220 so that the lower end of the first link 410 is rotatably connected to the upper link pin 422. .

The pedestal 300 is installed on the upper part of the lifting frame 200 to support books, documents, or monitors.

1 and 5, the pedestal 300 is formed of a flat substantially rectangular plate having a predetermined thickness, and buttonholes 310 are formed on both left and right sides. Push buttons 600 are installed on both sides of the bottom surface of the pedestal 300 adjacent to the buttonhole 310 so that it can be easily operated by putting a hand through the buttonhole 310.

The parallel expansion and contraction link 400 is a configuration for ascending or descending while maintaining the base 300 in parallel, and the parallel expansion and contraction link 400 crosses the center of the first link 410 and the second link 420 It means a so-called X-link that is stretched and contracted by connecting with a pin 430.

3 and 6, the parallel extension link 400 includes a first link 410 and a second link 420 connected to the center of the first link 410 by a cross pin 430, It is connected to the front and rear upper guide rail 220 and the lower guide rail 120, respectively.

The lower end of the first link 410 is rotatably connected to the lower link plate 121 by the lower link pin 412, and the upper end is movably connected to the upper guide rail 220 to the upper driving wheel 411.

The lower end of the second link 420 is movably connected to the lower guide rail 120 by the lower driving wheel 421 and the upper end is rotatably connected to the upper link plate 221 by the upper link pin 422.

These front and rear first links 410 are connected by a balance bar 440 to maintain the front and rear and left and right balances when ascending or descending, and the balance bar 440 is the front and rear of the position close to the upper driving wheel 411. It is connected to the first link 410 to prevent interference with the second link 420 when lifting.

The actuator (actuator) is a configuration that automatically expands and contracts the parallel expansion and contraction links 400, and such an actuator is preferably implemented with a gas shock absorber (500).

7 and 8, the gas shock absorber 500 is rotatably connected to the second link 420 to expand and contract along the tube 510 and the tube 510 in which an expansion valve (not shown) is embedded. The plunger 520 provided at the outer end of the plunger 520, the shock absorber bracket 540 connected to the first link 410 to support the plunger 520, the operating rod 530 that is connected so as to operate the telescopic valve, and the operating rod The lever 530 is rotatably connected to the shock absorber bracket 540 to regulate the operation of the 530 and rotated by the push button 600, and the lever 530 rotated by the push button 600. It includes an elastic member to restore sexuality.

6 and 7, one end of the tube 510 is rotatably connected to the second link 420 by a tube pin 511. An expansion valve is built into the tube 510 to regulate the expansion and contraction of the plunger 520, and one end of the actuating rod 530 is connected to this expansion valve, and the other end of the actuating rod 530 is the plunger 520 It is connected to protrude to the outer end of the.

Referring to FIG. 7, the plunger 520 is elastically connected along the tube 510, and the outer end of the plunger 520 is rotatably connected to the first link 410 by a lower link pin 412. It is supported by the shock absorber bracket 540. At the outer end of the plunger 520, an operation rod 530 is connected to protrude and is operated by a lever 530.

In addition, the shock absorber bracket 540 is rotatably connected to the first link 410 by a lower link pin 412 to support the outer end of the plunger 520. A cable bushing 541 is provided on the right side of the shock absorber bracket 540 to stably protect the protective tube 620 to be described later.

In addition, the lower end of the lever 530 is rotatably connected to the shock absorber bracket 540 with a lever 530 pin, and an operation cable 610 operated by a push button 600 is connected to the upper end, As it is rotated by the button 600, the operation of the operation rod 530 is regulated.

In addition, the elastic member is a member that elastically restores the lever 530 rotated by the push button 600, such an elastic member, as shown in Figure 7, the lever 530 and the shock absorber bracket 540 It is implemented as a coil spring 560 that is interposed between and elastically restores the lever 530 rotated by the push button 600. Optionally, the elastic member may be implemented as a leaf spring that is interposed between the lever 530 and the shock absorber bracket 540 to elastically restore the lever 530 rotated by the push button 600.

Looking at the action of the actuator configured as described above with reference to FIG. 8, when the push button 600 is pressed, the operation cable 610 is pulled in the direction of the arrow, so that the lever 530 rotates around the lever 530 pin in the direction of the arrow. And, since the lever 530 presses the operating rod 530 to operate the expansion valve, the plunger 520 is stretched or contracted from the tube 510 to expand and contract the first link 410 and the second link 420 Will be ordered.

The push button 600 is connected to the lever 530 with an operation cable 610 to operate the actuator.

2 to 5, the push button 600 is installed on the left and right sides of the bottom of the pedestal 300. At this time, the push button 600 is installed on both sides of the bottom surface of the pedestal 300 adjacent to the button hole 310 and can be easily operated by putting a hand through the button hole 310.

Referring to FIG. 7, it is preferable that the operating cable 610 is protected by a protective tube 620. Since the operating cable 610 is operated within the protective tube 620, it is not interfered with by external elements. The protective tube 620 connected to the shock absorber bracket 540 is stably protected by the cable bushing 541.

The overall operation of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

First, in order to raise the pedestal 300, in a state as shown in FIG. 8(a), when pressing the push button 600 by putting both hands in the button hole 310, the operating cable 610 in the protective tube 620 is By pulling the lever 530, the operation rod 530 is pressed.

Then, the operation rod 530 operates the expansion valve in the tube 510 to increase the plunger 520, and the upper driving wheel 411 of the first link 410 moves along the upper guide rail 220, , Since the lower driving wheel 421 of the second link 420 moves along the lower guide rail 120, the parallel extension link 400 starts to increase as shown in (b) of FIG. 8.

At this time, a slight force is applied to both hands holding the pedestal 300 so that the extension distance of the plunger 520 can be adjusted.

Next, when the pedestal 300 is positioned at the height desired by the user, when the hand is removed from the push button 600, the pulled operation cable 610 is restored to its original position by the coil spring 560, so the plunger 520 Since the operation is stopped, the parallel extension link 400 is stopped as shown in (c) of FIG. 8.

On the contrary, in order to lower the pedestal 300, the plunger 520 of the gas shock absorber 500 is reduced by pressing a little force on both hands holding the pedestal 300 while pressing the push button 600. Therefore, the upper driving wheel 411 and the lower driving wheel 421 move along the respective guide rails 220 and 120, so that the parallel extension link 400 is in the same state as (a) through (b) of FIG. The height is lowered.

Therefore, in the present invention, when the user presses the push button 600 with both hands, the gas shock absorber operates without supply of power to expand and contract the parallel extension link 400, so that the height of the pedestal 300 can be finely adjusted without noise. In addition, since the lifting table has independence, there is an advantage that it can be easily moved and installed simply, regardless of the installation location.

The embodiments of the present invention described above are merely exemplary, and those of ordinary skill in the art to which the present invention belongs will appreciate that various modifications and other equivalent embodiments are possible.

Therefore, it will be appreciated that the present invention is not limited to the form mentioned in the detailed description above.

Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. In addition, the present invention is to be understood as including the spirit of the present invention as defined by the appended claims and all modifications, equivalents and substitutes within the scope thereof.

100: base frame 110: lower frame
120: lower guide rail 121: lower link plate
200: lifting frame 210: upper frame
220: upper guide rail 221: upper link plate
300: base 310: buttonhole
400: parallel extension link 410: first link
411: upper drive wheel 412: lower link pin
420: second link 421: lower driving wheel
422: upper link pin 430: cross pin
440: balance bar 500: gas shock absorber
510: tube 520: plunger
530: operating rod 540: shock absorber bracket
550: lever 560: coil spring
600: push button 610: operating cable
620: protective tube O: object
H: Hall

Claims (7)

A base frame having lower guide rails on both front and rear sides, an elevating frame having upper guide rails on both sides of the base frame so as to be elevating, a pedestal installed on the top of the elevating frame, and one end to elevate the pedestal. A part is rotatably connected to the base frame, and the other end part is a parallel extension link in which the first and second links movably connected along the upper and lower guide rails are crossed by a cross pin, and the parallel extension link is connected to expand and contract. An actuator, comprising a push button connected to operate the actuator,
The base frame includes a lower frame in which four channel ends are connected to form a closed line, and a lower guide rail provided on the front and rear inner surfaces of the lower frame. A base frame having lower guide rails on both front and rear sides, an elevating frame having upper guide rails on both sides of the base frame so as to be elevating, a pedestal installed on the top of the elevating frame, and one end to elevate the pedestal. A part is rotatably connected to the base frame, and the other end part is a parallel extension link in which the first and second links movably connected along the upper and lower guide rails are crossed by a cross pin, and the parallel extension link is connected to expand and contract. An actuator, comprising a push button connected to operate the actuator,
The actuator is rotatably connected to the second link to support the plunger, a tube having an expansion valve installed therein, a plunger provided at an outer end of an actuating rod that is elastically connected along the tube to operate the expansion valve. A bracket connected to the first link, a lever rotatably connected to the bracket to regulate the operation of the actuating rod and rotated by the push button, and an elastic member elastically restoring the lever rotated by the push button A movable lifting table capable of preventing noise and fine height adjustment, comprising: a. The method according to claim 1 or 2,
The lifting frame includes an upper frame having four channel ends connected to form a closed line, and an upper guide rail provided on the front and rear inner surfaces of the upper frame. The method according to claim 1 or 2,
One end of the first link is rotatably connected to the lower link plate with a lower link pin, and the other end is connected to the upper guide rail with an upper driving wheel to enable rolling movement. Mobile lifting table. The method according to claim 1 or 2,
One end of the second link is connected to the lower guide rail in a rolling motion with a lower driving wheel, and the other end is rotatably connected to the upper link plate with an upper link pin. Lifting table. The method according to claim 1 or 2,
The front and rear first links are connected by a balance bar to maintain a balance during lifting and lowering. The method according to claim 1 or 2,
Buttonholes are formed on both sides of the pedestal, and push buttons are installed on both sides of the bottom of the pedestal adjacent to the buttonhole.

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