KR20040013886A - Stand structure for lcd monitor - Google Patents

Abstract

PURPOSE: A support structure of an LCD monitor is provided to pivot, tilt and swivel an LCD monitor by using one hinge assembly, and also to adjust a height of the LCD monitor by using a stand for fixing the hinge assembly. CONSTITUTION: The structure comprises a hinge assembly(20), a stand(2'), and a base. The hinge assembly(20) fixes an LCD monitor. The stand(2') supports the hinge assembly(20). The base fixes a lower end of the stand(2'). The hinge assembly(20) includes a pivot(1'), a tilt(21), a swivel(22) and a height adjustment part(23). The pivot(1'), fixed at a back side of the LCD monitor, rotates the monitor, clockwise or counterclockwise. The tilt(21), connected at a rear part of the pivot(1'), tilts the LCD monitor. The swivel(22), connected to a bottom of the tilt(21), swivels the LCD monitor.

Description

Pedestal structure of an LCD monitor {STAND STRUCTURE FOR LCD MONITOR}

The present invention relates to a pedestal structure for supporting an LCD monitor, and in particular, a pivot function for rotating the LCD monitor clockwise or counterclockwise with respect to the screen axis, a tilt function for angle-adjusting the LCD monitor back and forth, and an LCD monitor. The present invention relates to a pedestal structure of an LCD monitor which implements a swivel function for rotating the left and right directions in one hinge assembly and further adjusts the height of the LCD monitor through a stand portion for fixing the hinge assembly.

In general, as shown in Figs. 1 to 4, the LCD monitor has a pivot part 1 for fixing the monitor body, a stand part 2 for supporting the pivot part, and a base part 3 for supporting the lower end part of the stand part. It consists of).

Here, the pivot portion 1, as shown in Figures 1 and 3, and the monitor support (4) fixed to the back of the LCD monitor so that the LCD monitor can be rotated within a certain angle range with respect to the screen axis And a hinge portion 5 rotatably connecting the monitor support, and a slider 6 connected to the hinge portion and sliding upward and downward.

The stand part 2 consists of an upper column 7 supporting the pivot part 1 and two lower support columns 9 connecting the lower end of the upper column via a hinge pin 8. Guide rails 10 are provided on both sides of the front column 7 on both sides thereof.

Accordingly, the slider 6 of the pivot part 1 can be slidably moved up and down along the guide rail 10 of the stand part 2, thereby enabling height adjustment of the LCD monitor.

At this time, the inner surface of the slider 6 is provided with a flat plate coil spring 11 having an elastic force enough to support the load of the LCD monitor, and furthermore, the coil portion of the plate coil spring is repeatedly unrolled and wound. It is inserted into the upper column 7 so as to be able to elastically support the load of the LCD monitor through the slider 6, so that the LCD monitor will remain at the height set by the user unless a separate force is applied. It becomes possible.

Furthermore, an upper stopper 12 and an lower stopper 13 are provided at an upper portion of the upper column 7 of the stand part 2 so that the slider 6 is provided at the upper stopper 12 and the lower stopper 13. Height can be adjusted.

The base portion 3 is composed of an upper base 14 and a lower base 15, the upper and lower bases are formed relatively wide so that the LCD monitor does not fall due to carelessness of the user.

Furthermore, in some LCD monitors, as shown in FIGS. 3 and 4, a swiveling 16 is provided between the upper base 14 and the lower base 15 so that the LCD monitor can be easily rotated from side to side. have.

On the other hand, the locking pin at the bottom of the slider 6 to prevent the LCD monitor fixed to the pivot portion 1 of the monitor support 4 unintentionally freely moving up and down when handling or transporting the LCD monitor. (17) is provided so that attachment or detachment is possible.

That is, the locking pin 17 passes through the lower side of the upper column 7 and passes through two locations on both sides of the slider 6, whereby the locking pin 17 lowers the upper column 7. The slider 6 is caught by the portion so that it cannot rise upward along the guide rail 10 of the upper column 7.

For reference, reference numeral 18 which is not described in FIGS. 3 and 4 shows an upper column cover 18 covering an outer side of the upper column 7 constituting the stand part 2, and reference numeral 19 denotes the above. It shows the lower support column cover 19 covering the outer side of the two lower support column (9).

The operation of the LCD monitor to which the pedestal structure of the conventional LCD monitor configured as described above is applied is as follows.

First, when the LCD monitor is to be rotated around the screen axis, when the LCD monitor is turned clockwise or counterclockwise, the hinge portion 5 of the pivot portion 1 supported by the LCD portion is supported by the stand portion 2. Can be rotated at an angle.

When tilting the LCD monitor in the front-rear direction, when the upper or lower portion of the LCD monitor is pushed or pulled, the upper column (centered on the hinge pins 8 provided on both lower support columns 9 of the stand part 2) By rotating 7), the LCD monitor can be angled in the front-rear direction.

When the LCD monitor is to be rotated in the left and right direction, when the LCD monitor is pulled or pushed left or right, the stand portion 2 connected to the LCD monitor is rotated, and the upper base 14 connected to the lower support column 9 of the stand portion is rotated. ) Rotates along the swiveling 16 on the lower base 15, thereby allowing the LCD monitor to be angled in the left and right directions.

If you want to adjust the height of the LCD monitor, pull the slider 6 of the pivot unit 1 up or down with respect to the upper column 7 of the stand unit 2 while holding the LCD monitor. The slider 6 of (1) can be moved up and down along the guide rail 10 of the upper column (7).

At this time, the slider 6 of the pivot portion 1 is the load of the LCD monitor by the plate coil spring 11 in the slider repeats the unwinding and winding in the upper column (7) of the stand portion (2) In this way, the LCD monitor fixed to the hinge portion 5 of the slider 6 side monitor support 4 can be maintained at a specific height set by the user.

However, conventionally, since each subassembly responsible for the pivot function, the tilt function, the swivel function, and the height adjustment function is arranged in a dispersed state, it is not only accompanied by an increase in the number of parts of the pedestal, but also structurally. There was a problem of dropping the image of luxury products by giving a crude feeling.

In addition, since the locking pin for fixing the LCD monitor is simply inserted below the upper column and inserted into the lower part of the slider connected to the back of the LCD monitor, the LCD monitor becomes unstable when handling or transporting the LCD monitor. There was this.

Furthermore, since the upper column of the stan and the slider of the pivot part sliding through the guide rail of the upper column are all made of aluminum, noise is severe during operation, and it is inconvenient to process the parts.

Accordingly, the present invention has been made to solve the above-mentioned problems, the object of which is to integrate and place each part responsible for the pivot function, the tilt function and the swivel function in at least one place and the part responsible for the height adjustment function more To simplify it.

Another object of the present invention is to provide a locking portion in the stand portion so that the LCD monitor is not released unless the user releases the lock state when handling or transporting the LCD monitor.

Still another object of the present invention is to prevent the occurrence of noise caused by friction between metals when adjusting the height of the LCD monitor.

1 is a schematic front perspective view showing a pedestal structure of an LCD monitor according to the prior art;

FIG. 2 is a schematic rear perspective view showing a pedestal structure of the LCD monitor of FIG.

Figure 3 is an overall exploded perspective view of the pedestal structure of the LCD monitor according to the prior art from the front vicinity.

4 is an overall exploded perspective view of the pedestal structure of the LCD monitor of FIG.

5 is an overall exploded perspective view showing a pedestal structure of the LCD monitor according to the present invention.

6 is a schematic perspective view showing a pedestal structure of the LCD monitor according to the present invention;

FIG. 7 is a schematic perspective view illustrating a case where the pedestal of the LCD monitor of FIG. 6 is located at a minimum height; FIG.

FIG. 8 is a schematic perspective view illustrating a case where the pedestal of the LCD monitor of FIG. 6 is positioned at the maximum height;

FIG. 9 is a schematic perspective view of a hinge assembly in which the pedestal of the LCD monitor of FIG. 6 performs all three functions in one assembly, namely pivoting, tilting and swiveling;

10 is a schematic front view showing a locking portion applied to a pedestal of the LCD monitor according to the present invention.

FIG. 11 is a schematic rear view when the locking part of FIG. 10 is viewed from the opposite direction.

12 is a schematic enlarged view illustrating a hook portion of a locking portion provided on an upper portion of a base column of the stand portion of FIG. 7;

<Description of the symbols for the main parts of the drawings>

1,1 ': pivot part 2,2': stand part

3,3 ': base portion 4,4': monitor support

5,5 ': Hinge 6: Slider

7: upper column 8,24,24 ': hinge pin

9: lower support column 10: guide rail

11,11 ': Foil coil spring 12,12': Upper stopper

13,13 ': Lower stopper 14: Upper base

15: lower base 16: swivel

17: Lock pin 18: Upper column cover

19: lower support column cover 20: hinge assembly

21: Tilt portion 21a: Tilt support

22: swivel portion 22a: swivel support

23: height adjustment unit 25: angle limiting medium

25a: protrusion 26: coil spring

27: lock ring 28: nut

29: Slider columns 29a, 29b, 29a ', 29b': plastic cover

29c: cable protection cover 30: auxiliary support

30a: arc slot 31: base column

32: auxiliary plate 33: locking part

33a: boss 34: lock lever

34a: hook portion 35: locking support

35a: turning 36: guiding groove

36a: locking recess 37: exterior cover

38: metal base 39: base cover

40: USB module

In order to achieve the above object, the present invention comprises a hinge assembly for fixing the LCD monitor; A stand portion for supporting the hinge assembly; In the pedestal structure of the LCD monitor composed of a base portion for fixing the bottom of the stand portion,

The hinge assembly is fixed to the rear surface of the LCD monitor and pivots to rotate the monitor clockwise or counterclockwise with respect to the image screen, and is connected to the rear of the pivot portion so that the LCD monitor can be adjusted in the front and rear directions And a swivel portion connected to the bottom of the tilt portion to rotate the LCD monitor in left and right directions, and a lower portion of the swivel portion is fixed to an upper portion of the stand portion, and the LCD portion is vertically mounted on the stand portion. Characterized in that it is provided with a height adjustment to enable sliding.

The outer side of the base column is characterized in that the locking portion is provided to prevent the slider column from freely moving up and down unintentionally when handling or transporting the LCD monitor.

At least two plastic covers are attached to the outer circumference of the slider column so that noise is not generated by friction when the slider column is slid up and down in the base column.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 5 to 12.

5 is an overall exploded perspective view showing a pedestal structure of the LCD monitor according to the present invention.

6 is a schematic perspective view showing a pedestal structure of the LCD monitor according to the present invention.

5 and 6, the present invention provides a hinge assembly for fixing the LCD monitor; A stand portion 2 'supporting the hinge assembly; In the pedestal structure of the LCD monitor composed of a base portion 3 'fixing the lower end of the stand portion,

The hinge assembly 20 is fixed to the rear side of the LCD monitor and pivots 1 'to rotate the monitor clockwise or counterclockwise with respect to the video screen, and is connected to the rear of the pivot to connect the LCD monitor. And a tilt portion 21 for enabling angle adjustment in the front and rear directions, and a swivel portion 22 connected to the lower portion of the tilt portion to rotate the LCD monitor in left and right directions. 2 ') is fixed to the upper portion, the stand portion is made of a structure provided with a height adjusting portion 23 to enable the LCD monitor to slide up and down.

Here, as shown in Fig. 9, the pivot portion 1 'comprises a monitor support 4' for supporting the LCD monitor and a hinge portion 5 'for rotatably connecting the monitor support. .

The tilt part 21 includes a tilt support 21a in which one side part is inserted between the monitor support 4 'and the hinge part 5', and the other part is bifurcated, and two branches on both sides of the tilt support. Two hinge pins 24 rotatably fixing portions, an angle limiting medium 25 for connecting a portion of each of the hinge pins to limit the rotation angle of the tilt support 21a within a predetermined range, and the tilt Coil springs 26 fitted to the hinge pins 24 so as to support the moment load of the LCD monitor caught on the support 21a, and locking rings 27 and nuts fitted to prevent the coil springs from being separated. 28).

The swivel portion 22 is connected to each hinge pin 24, the upper portion is responsible for the locking function and the hinge function, and the lower portion protrudes to a predetermined depth to limit the rotation angle and the stand portion, It consists of an auxiliary support 30 is fixed to the upper end of the slider column 29 constituting (2 ') to rotatably fix the swivel support (22a).

Further, an arc-shaped slot 30a is formed at an upper portion of the auxiliary support 30, and a protrusion having a predetermined depth is disposed at one side of the angle limiting medium 25 at the tilt part 21 side corresponding to the arc-shaped slot. A step 25a is formed. Accordingly, the left and right rotation of the swivel portion 22 is limited to an angle range in which the protruding end 25a of the angle limiting medium 25 can be rotated in the arc-shaped slot 30a of the auxiliary support 30. do.

Meanwhile, as shown in FIG. 5, the height adjusting unit 23 includes a slider column 29 for fixing the lower portion of the swivel unit 22 and a base column 31 for guiding the slider column. The base column has a structure in which the plate coil spring 11 'of constant elasticity is in contact with the lower end of the slider column 29 so that the LCD monitor is maintained at a specific height set by the user.

Here, the plate coil spring 11 'is fixed to the auxiliary plate 32 of a predetermined size after the flat portion, and then the auxiliary plate and the plate coil spring 11' is screwed inside the base column 31. It is preferable to fix using, and the elastic force of the plate coil spring 11 'is preferably such that the LCD monitor does not sag down or bounce up by the load at a height set by the user.

As shown in FIG. 6, the locking part 33 is provided on the outside of the base column 31 to prevent the slider column 29 from freely moving up and down unintentionally when handling or transporting the LCD monitor. It consists of a prepared structure.

10 and 11, the locking portion 33 is provided with a locking lever 34 having one end fixed by a hinge pin 24 'and the other end provided with a cantilever type. The tip portion has a structure in which a hook portion 34a which extends in the horizontal direction and protrudes downward is formed.

In the middle of the locking lever 34, a locking support 35 having a protrusion 35a is provided downward, and a boss 33a is provided in the locking portion 33 corresponding to the protrusion 35a of the locking support 34. As shown in FIG. Consists of a formed structure.

As shown in FIGS. 5 and 6, at least two outer edges of the slider column 29 prevent noise from being generated by mutual friction when the slider column is slid up and down in the base column 31. Four plastic covers 29a and 29b are attached to each other.

Guiding grooves 36 having a predetermined length in the longitudinal direction are formed on the outer side of the rear plastic cover 29b among the plastic covers 29a and 29b, and the hook of the locking lever 34 is formed on one side of the upper portion of the plastic cover 29a and 29b. Consists of a structure in which the locking recess 36a is formed so that the portion 34a can be caught.

It is preferable that a U-shaped groove having a predetermined depth is formed below the locking recess 36a to correspond to the downward protrusion of the hook portion 34a.

As shown in FIGS. 5, 7 and 8, the upper and lower stoppers 12 protruding through the rear plastic cover 29b to set the maximum height of the LCD monitor are located at the outer lower portion of the slider column 29. ') Is provided so that the upper stopper 12' of the slider column 29 is caught by the lower edge of the locking portion 33 on the base column 31 side when the LCD monitor is raised, and this point is the LCD monitor. Is the maximum height of.

At least two lower stoppers 13 'are provided at an inner lower portion of the base column 31 so as to set a minimum height of the LCD monitor. As a result, the lower end of the slider column 29 has the base when the LCD monitor is lowered. The bottom stopper 13 'of the column 31 is caught, which is the minimum height of the LCD monitor.

On the other hand, the slider column 29 and the base column 31 is preferably made of a hollow shape to reduce the weight.

As shown in FIG. 5, the tilt cover 21 and the swivel portion 22 are fitted with an outer cover 37 to increase the visual image of the product, and the base column 31 of the stand portion 2 ′. ) Is attached to the plastic cover (29a ', 29b'), and the cable protective cover (29c) is further fitted to one side of the outer plastic cover (29b ').

In addition, the base portion 3 'is composed of a metal base 38 cross-connected with the base column 31 of the stand portion 2', and a base cover 39 covering an upper portion of the metal base. A USB module 40 is installed inside the base cover.

The process of assembling the hinge assembly, the stand unit, and the base unit by applying the pedestal structure of the LCD monitor according to the present invention configured as described above and the operation thereof are as follows.

First, the assembly process of the hinge assembly, the stand portion and the base portion will be described as follows.

First, in the case of a hinge assembly composed of a pivot part, a tilt part and a swivel part, as shown in FIG. 9, the monitor support 4 'and the hinge part 5' of the pivot part 1 'supporting the LCD monitor. ) Is aligned with each other, the front portion of the tilt support 21a of the tilt portion 21 is positioned between the monitor support 4 'and the hinge 5' to fix the hinge 5 '. .

Then, the upper two fixing portions of the angle limiting medium 25 of the tilting portion 21 side along the horizontal axis passing through the two rear sides of the tilting support 21a of the tilting portion 21, and the coil spring 26. And, while aligning the locking ring 27, each of the hinge pins 24 are sequentially inserted along the axis to be fixed by the nut 28. Here, the locking ring portion 27 fitted to each of the hinge pins 24 shows the same portion as the upper portion of the swivel support 22a on the swivel portion 22 side.

Then, the secondary support 30 is rotatably fixed to the lower end of the swivel support 22a on the swivel portion 22 side, and then the lower end of the auxiliary support 30 is positioned on the upper end of the slider column 29 on the stand 2 'side. Secure with screws.

Then, when the exterior cover 37 is covered on the outside of each of the tilt portion 21 and the swivel portion 22, one hinge composed of a pivot portion 1 ', the tilt portion 21 and the swivel portion 22 Assembly 20 is complete.

Secondly, the base cover 39 constituting the base portion 3 ′ is inserted into the base column 31 constituting the stand portion 2 ′ from above and downward, and then behind the base cover. After fixing the USB module 40, the metal base 38 is aligned with the lower side of the base cover 39 to fix the base cover 39 and the metal base 38 with screws (see FIG. 5). ).

Then, the plate coil spring 11 'is first fixed to the auxiliary plate 32, and then the upper flat portion of the auxiliary plate 32 and the plate coil spring 11' is fixed to the base of the stand portion 2 'side. The inside of the column 31 is fixed using a screw.

Third, after fixing the upper end of the slider column 29 of the stand portion 2 'side supporting the load of the LCD monitor to the auxiliary support 30 of the swivel portion 22 of the hinge assembly 20 by using a screw. Each of the plastic covers 29a and 29b is attached to both outer surfaces of the slider column 29.

Then, the slider column while pressing the inner plate coil spring 11 'of the base column 31 using the lower end of the slider column made of metal in the entire slider column 29 of the stand part 2' side. (29) is inserted into the base column 31 to a predetermined depth, and then the locking portion 33 is temporarily assembled to the upper outer portion of the base column (see Fig. 6).

Then, when the force applied to the slider column 29 is released, the slider column 29 rises to a certain height by the elastic force of the plate coil spring 11 'and then the base column 31 side locking part An upper stopper 12 ′ of the slider column 29 is caught at the lower edge of the 33, thereby allowing an operator to screw the locking portion 33 preassembled to the upper outer portion of the base column 31. Can be completely fixed.

Then, the plastic covers 29a 'and 29b' are attached to both outer portions of the base column 31 on the stand portion 2 'side, and the rear plastic cover 29b' of the base column 31 of the plastic covers. Attach the cable protection cover (29c), the entire assembly process of the base of the LCD monitor so far is completed.

Looking at the operation of the pedestal according to the invention assembled as described above are as follows.

As shown in Fig. 9, in the case of the pivot function, when the LCD monitor is turned clockwise or counterclockwise with respect to the screen axis, the monitor support 4 'of the pivot portion 1' It can be rotated at an angle about an axis of the hinge portion 5 'supported by the tilt support 21a.

In the case of the tilt function, when the upper or lower portion of the LCD monitor is pulled or pushed forward or backward, the two hinges of the tilt support 21a of the tilting portion 21 supported by the swivel support 22a of the swivel portion 22 are supported. It can be rotated at a predetermined angle in the front and rear direction about the pin (24).

At this time, the coil spring 26 having a certain elasticity is fitted to the outer circumferential surface of each of the hinge pins 24 so that the LCD monitor does not sag down or bounce upwards due to its load, and furthermore, each of the hinge pins 24 The angle limiting medium 25 is provided at both sides to limit the rotation angle of the tilt support 21a within a predetermined range.

In the case of the swivel function, when the LCD monitor is turned to the left and right directions, the swivel support 22a of the swivel portion 22 is connected to the upper end of the slider column 29 on the stand portion 2 'side. It can be rotated at a predetermined angle in the left and right direction about the center.

At this time, the left and right rotation of the swivel support 22a is a projection end 25a of the angle limiting medium 25 is fitted in the arc-shaped slot 30a of the auxiliary support 30, the projection end 25a It can be limited to within the angular range that can be rotated in this arc-shaped slot (30a).

On the other hand, in the case of the height adjustment function, when the LCD monitor is lifted upward or pulled downward, the inner plate coil spring of the base column 31 in which the load of the LCD monitor is in contact with the lower end of the slider column 29 ( It is supported by the elastic force of 11 '), so that once the height of the LCD monitor is set, the LCD monitor does not cause a phenomenon of jumping up or sagging from the height set by the user.

At this time, the outer surface of each plastic cover (29a, 29b) of the slider column 29 and the inner surface of the base column 31 is in plastic-to-aluminum contact, thereby out of the plastic cover (29a, 29b) Constant friction between the side and the inner surface of the base column 31 can be maintained, the noise is not generated when adjusting the height of the LCD monitor.

In the case of a locking function for fixing the LCD monitor during handling or transportation, first, the slider column 29 of the LCD monitor is pulled toward the base column 31, and the locking lever 34 provided on the outer locking part 33 of the base column is closed. A hinge pin 24 'guides the slider column 29 along the axis of the stand portion 2' through a guiding groove 36 formed in the outer plastic cover 29b of the slider column 29. Thus, the slider column 29 can be lowered without eccentricity until its lower end touches the lower stopper 13 'of the base column 31.

Then, when the hook portion 34a of the locking lever 34 is pressed toward the upper locking recess 36a of the guiding groove 36, the downward protrusion of the hook 34a is formed on the locking recess 36a. The U-shaped groove (not shown) is caught, thereby preventing the LCD monitor fixed to the slider column 29 from moving up and down.

In addition, the locking lever (35a) of the locking support (35) provided in the middle portion of the locking lever 34 is locked over the boss (33a) of the locking portion 33 to one side of the boss, the locking lever The hook portion 34a of 34 cannot be released from the locking recess 36a unless the operator releases the locked state (see FIGS. 10 to 12).

As described above, the present invention provides a hinge assembly having a pivot function, a tilt function, and a swivel function on an upper part of the stand part, and the stand part itself provides a slider column and a base column that are height-adjusted by a storage method. Simplified the pedestal structure of the monitor.

In addition, the present invention provides a locking portion in the base column of the stand portion and a locking recess in the slider column so that the locking lever of the locking portion can be stably locked in the locking recess to facilitate handling or transportation of the LCD monitor.

In addition, the present invention is attached to the outside of the slider column plastic cover so that the noise is not generated when adjusting the height of the LCD monitor.

Claims (10)

A hinge assembly for fixing the LCD monitor; A stand portion for supporting the hinge assembly; In the pedestal structure of the LCD monitor composed of a base portion for fixing the bottom of the stand portion, The hinge assembly is fixed to the rear surface of the LCD monitor and pivots to rotate the monitor clockwise or counterclockwise with respect to the image screen, and is connected to the rear of the pivot portion so that the LCD monitor can be adjusted in the front and rear directions And a swivel portion connected to the lower portion of the tilt portion to rotate the LCD monitor in left and right directions. The lower portion of the swivel portion is fixed to the upper portion of the stand portion, the stand portion of the LCD monitor pedestal structure, characterized in that provided with a height adjuster for sliding the LCD monitor up and down. According to claim 1, wherein the height adjustment portion is composed of a slider column for fixing the lower portion of the swivel portion, and a base column for guiding the slider column, The inside of the base column is a pedestal structure of the LCD monitor, characterized in that the plate coil spring of constant elastic force in contact with the lower end of the slider column is provided so that the LCD monitor is maintained at a specific height set by the user. The pedestal structure of the LCD monitor of claim 2, wherein a lock part is provided on an outer side of the base column to prevent the slider column from freely moving up and down unintentionally when handling or transporting the LCD monitor. According to claim 3, The locking portion is provided with a locking lever, one end of which is fixed by a hinge pin and the other end is provided in a cantilever type, the front end portion of the locking lever is formed with a hook portion protruding downward after extending in the horizontal direction Pedestal structure of the LCD monitor, characterized in that. 5. The pedestal structure of an LCD monitor according to claim 4, wherein a locking support having a protrusion downward is provided at an intermediate portion of the locking lever, and a boss is formed at the locking portion corresponding to the protrusion of the locking support. According to claim 2, At least two plastic covers are attached to the outer periphery of the slider column so that noise is not generated by mutual friction when the slider column slides up and down in the base column. Base structure of LCD monitor. According to claim 6, Out of the rear plastic cover of each of the plastic cover is formed a guiding groove of a predetermined length in the longitudinal direction, the upper side of the guiding groove is formed with a locking recess so that the hook portion of the locking lever can be caught Pedestal structure of the LCD monitor, characterized in that. The pedestal structure of the LCD monitor according to claim 7, wherein the locking recess has a U-shaped groove having a predetermined depth corresponding to the downward protrusion of the hook portion. According to claim 2, wherein the outer bottom of the slider column is provided with an upper stopper protruding through the rear plastic cover to set the maximum height of the LCD monitor, whereby the upper stopper of the slider column is the base column side A pedestal structure for an LCD monitor, characterized in that the maximum height of the LCD monitor is determined by the lower edge of the locking portion. The LCD monitor of claim 2, wherein at least two lower stoppers are provided at an inner lower portion of the base column so as to set a minimum height of the LCD monitor. Pedestal structure of the LCD monitor, characterized in that the minimum height is determined.