CN107454355B - Sliding structure of rear decorative cover plate of liquid crystal television - Google Patents

Abstract

The invention discloses a sliding structure of a rear decorative cover plate of a liquid crystal television, which is arranged on the liquid crystal television with a sound box base and positioned between a small rear shell and the rear decorative cover plate; the rear decorative cover plate is arranged on the back surface of the small rear shell; wherein: under the condition of wall-hung installation, the rear decorative cover plate slides downwards by the thickness of the sound box base to expose the rack screw through hole on the small rear shell; because the rear decorative cover plate adopts a structure capable of sliding downwards, when the loudspeaker box is mounted on a wall, the upright post structure and the screw holes which are used for mounting the loudspeaker box base on the small rear shell are shielded, so that the integral aesthetic feeling that the screw holes do not exist behind the large-size liquid crystal television when the loudspeaker box is erected is considered, and the integral aesthetic feeling that the screw holes do not exist behind the large-size liquid crystal television when the loudspeaker box is mounted on the wall is also considered.

Description

A sliding structure for the rear decorative cover of an LCD TV

technical field

The invention relates to the field of large-size liquid crystal television sets with speaker bases, in particular to a sliding structure for a rear decorative cover plate of an LCD television set.

Background technique

With the popularization and development of large-size LCD TVs (that is, LCD TVs over 55 inches), consumers will not only pay attention to the overall beauty brought by the front decorative panel (or strip) to the front of large-size LCD TVs, but also pay attention to The missing or seldom concerned rear decorative cover brings the overall beauty to the back of the large-size LCD TV, especially when this feeling needs to be able to take into account the two installations of the vertical machine and the wall.

The rear shells of the large-size LCD TVs in the prior art are all fixed by screws. Usually, the rear decorative cover is installed on the small rear shell (because the length and width are much smaller than that of the LCD screen), and the vertical machine is installed. In this case, there is no need to set any holes or rib structures on the rear decorative cover. If you want to take into account the wall-mounted installation, it can be divided into two cases. One is that the rear decorative cover is not removable, you must The non-removable rear decorative cover must be installed with holes or rib for wall-mounted installation. In another case, if the rear decorative cover can be removed, the rear decorative cover must be removed for wall-mounted installation. .

However, in the former case, the rear decorative cover with holes or ribs seriously affects the overall aesthetics behind the large-size LCD TV; in the latter case, not only the removed rear decorative cover is left unused and It takes up space, and the small rear case exposed after removal still destroys the overall aesthetic behind the large LCD TV.

Therefore, the existing technology still needs to be improved and developed.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a sliding structure for the rear decorative cover plate of an LCD TV, which can take into account the overall beauty of the rear of a large-sized LCD TV under both vertical and wall installation conditions.

The technical scheme of the present invention is as follows: a sliding structure for a rear decorative cover plate of an LCD TV is arranged on an LCD TV with a speaker base, and is located between a small rear shell and a rear decorative cover plate; the rear decorative cover plate It is installed on the back of the small rear shell; wherein: in the case of wall-mounted installation, the rear decorative cover plate slides down the distance of the thickness of the sound box base to expose the hanging screw holes on the small rear shell.

The sliding structure of the rear decorative cover plate of the LCD TV, wherein: a plurality of sliding column hooks are arranged on the side of the rear decorative cover plate facing the small rear shell; each sliding column hook is composed of a sliding column and a hook The sliding column is vertically connected to the surface of the decorative cover plate, and the hook plate is eccentrically connected to the top of the sliding column to hook the small rear shell; correspondingly, on the small rear shell A plurality of first sliding rail grooves are arranged on the upper part to correspond to the sliding column hooks on the rear decorative cover; the lower end of the first sliding rail grooves is provided with a hook plate adapted to pass through the corresponding sliding column hooks. A disassembly hole is provided to facilitate disassembly and assembly of the rear decorative cover; the upper end of the first sliding rail groove is symmetrically provided with elastic limiting bumps, which are used to clamp the sliding column of the corresponding sliding column hook when the vertical machine is installed. to locate the upper limit position of the rear decorative cover; both sides of the first slide rail groove extend first guide ribs in the thickness direction of the small rear shell, and the top surface of the first guide ribs reaches the small rear shell The distance from the outer side surface is less than or equal to the distance from the bottom surface of the hook plate of the spool hook to the inner side surface of the rear decorative cover plate, and the top surface of the first guide rib at one end of the disassembly hole is inclined.

The sliding structure of the rear decorative cover plate of the LCD TV, wherein: a plurality of iron sheet grooves are arranged on the side of the rear decorative cover plate facing the small rear case; each iron sheet groove is provided with a magnetic Correspondingly, the small rear shell is also provided with a plurality of magnet seats with elastic slots corresponding to the iron grooves on the rear decorative cover, and each magnet seat is A magnet is mounted on the card for attracting the iron pieces in the corresponding iron piece grooves when the rear decorative cover plate slides up and down.

The sliding structure of the rear decorative cover plate of the LCD TV, wherein: on the side of the lower part of the small rear shell facing the screen body structure member, two sets of button limit components are installed at horizontal intervals, which are used to slide the downward sliding The rear decorative cover is positioned at the back of the small rear case and prevents the rear decorative cover from coming off the small rear case.

The sliding structure of the rear decorative cover plate of the LCD TV, wherein: two second sliding rail grooves are laterally spaced at the bottom of the small rear case, and the bottom end of the second sliding rail groove is provided with a fitting installation The button hole of the button limit component is symmetrically provided with positioning ribs and screw bottom hole columns on both sides of the button hole, and the upper part of the positioning ribs is provided with a positioning slot; on both sides of the second slide rail groove The thickness direction of the small rear shell extends respectively with second guide ribs, and the distance from the top surface of the second guide ribs to the outer side of the small rear shell is less than or equal to the bottom surface of the hook plate of the sliding column hook to the inner side of the rear decorative cover plate the distance.

The sliding structure of the rear decorative cover plate of the LCD TV, wherein: each set of button limit components is composed of a fixed seat, a spring, a sliding sheet and a button; The sliding piece is located at the bottom of the button, and the spring is located between the inner bottom surface of the fixed seat and the bottom surface of the sliding piece; the two ends of the fixed seat are symmetrically provided with screw through-hole posts; the two ends of the sliding piece are symmetrically arranged There is a tooth for fitting into the positioning slot; the head of the button is provided with a positioning groove, which is used to support the sliding column of the corresponding sliding column hook during wall-mounted installation, so as to locate the The lower limit position of the rear decorative cover; the top surface of the button is provided with a countersunk hole with a straight rib, which is used to rotate the button by manual pressing.

The sliding structure of the rear decorative cover plate of the LCD TV, wherein: the upper edge of the screen body structure is provided with a wall-hanging riveting column, which is used for hanging the wall-hanging frame through the wall-hanging screw during the wall-hanging installation. The connection is fixed on the back of the small rear shell; correspondingly, the through holes of the hanger screws are arranged at the upper edge of the small rear shell.

The sliding structure of the rear decorative cover plate of the LCD TV provided by the present invention, because the rear decorative cover plate adopts a downward sliding structure, when the wall is installed, it blocks the small rear shell for installing the speaker base. The column structure and screw holes not only take into account the overall beauty of the large-size LCD TV without screw holes when it is upright, but also take into account the overall beauty of the large-size LCD TV without screw holes when it is hung on the wall.

Description of drawings

Fig. 1 is the state diagram of the sliding structure embodiment of the rear decorative cover plate of the LCD TV of the present invention when it is upright;

Fig. 2 is the state diagram of the sliding structure embodiment of the rear decorative cover plate of the LCD TV of the present invention when hanging on the wall;

3 is a rear view of the sliding structure embodiment of the rear decorative cover plate of the LCD TV of the present invention after removing the vertically installed speaker base;

4 is an exploded view of the main components of the sliding structure embodiment of the rear decorative cover plate of the LCD TV of the present invention;

5 is a structural diagram of a rear decorative cover used in a sliding structure embodiment of a rear decorative cover of an LCD TV according to the present invention;

6 is a structural diagram of a small rear casing used in the sliding structure embodiment of the rear decorative cover plate of the LCD TV of the present invention;

7 is an enlarged group view of a single group of button limiting components installed on a small rear case of a sliding structure embodiment of a rear decorative cover plate of an LCD TV according to the present invention.

Detailed ways

The specific embodiments and embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The specific embodiments described are only used to explain the present invention, and are not used to limit the specific embodiments of the present invention.

As shown in FIG. 1, FIG. 1 is the state diagram of the sliding structure embodiment of the rear decorative cover plate of the LCD TV of the present invention when it is upright. A large-size LCD TV with a base having a certain thickness, such as a base, includes a liquid crystal screen 100 and its screen body structure 200, a small rear shell 300, a rear decorative cover 400 and a speaker base 500; wherein the small rear shell 300 is installed On the screen body structure 200 of the liquid crystal screen 100, the rear decorative cover 400 is installed on the back of the small rear case 300, and the speaker base 500 is connected to the lower edge of the back of the small rear case 300, and serves as the entire large size It is used as a support when the LCD TV is installed vertically.

With reference to FIG. 2, FIG. 2 is a state diagram of the sliding structure embodiment of the LCD TV rear decorative cover of the present invention when hanging on the wall. The sliding structure of the LCD TV rear decorative cover is arranged on a base 500 with a speaker. On the LCD TV, and located between the small rear case 300 and the rear decorative cover 400, in the case of wall-mounted installation, the rear decorative cover 400 slides down a distance of the thickness of the speaker base 500 for The upper part of the small rear shell 300 is exposed for the mounting screw holes of the lower part of the wall hanging bracket 600; at the same time, the speaker base 500 is upside-down buckled on the back of the LCD screen 100 above the small rear shell 300. The upper part of the wall mount 600 is connected with the speaker base 500 .

Referring to FIG. 3, FIG. 3 is the rear view of the sliding structure embodiment of the rear decorative cover plate of the LCD TV of the present invention after the speaker base of the vertical installation is removed. Before switching from the vertical installation to the wall installation, it is necessary to first. The speaker base 500, which acts as a support when the vertical machine is installed in FIG. 1, is removed, and after the speaker base 500 is removed, since there is no shielding of the speaker base 500, a lot of the lower part of the back of the small rear shell 300 is exposed. The structure, especially the four column fixing structures 330 for connecting and fixing the speaker base 500, seriously affects the overall aesthetic feeling behind the large-size LCD TV.

In order to block these structures located at the lower part of the back of the small rear shell 300, the LCD TV of the present invention improves the rear decorative cover, adopts a structure that can slide down a certain distance of the thickness of the speaker base 500, and combines the convex point The limit structure and the button limit structure, the former is used to locate the upper limit position of the decorative cover plate 400, the latter is used to locate the lower limit position of the rear decorative cover plate 400, and the magnet attracting structure is used to improve the The sliding feel of the rear decorative cover plate 400 .

Referring to FIG. 4, FIG. 4 is an exploded view of the main components of an embodiment of the sliding structure of the LCD TV rear decorative cover of the present invention. In the specific implementation of the sliding structure of the LCD TV rear decorative cover of the present invention, the The upper edge of the screen structure 200 is provided with a wall-hanging riveting column 106, which is used to connect and fix the wall-hanging bracket 600 in FIG. Correspondingly, the aforementioned hanger screw holes 306 are also provided on the upper edge of the small rear shell 300; at the same time, the side of the lower part of the small rear shell 300 facing the screen structure 200 is installed at horizontal intervals There are two sets of button limiting assemblies 230 for positioning the rear decorative cover plate 400 slid downward on the back of the small rear shell 300 and preventing the rear decorative cover plate 400 from coming off the small rear shell 300 .

Specifically, with reference to FIG. 5 , FIG. 5 is a structural diagram of the rear decorative cover used in the sliding structure embodiment of the rear decorative cover of the LCD TV of the present invention, and FIG. 5 shows the rear facing the small rear case 300 . The structure on the inner side of the decorative cover plate 400, and the partial structure at the corner A is shown enlarged. The side of the rear decorative cover plate 400 facing the small rear shell 300 is provided with a plurality of strut hooks 410 and a plurality of iron pieces Grooves 420; each sliding column hook 410 is composed of a sliding column 411 and a hook plate 412, the sliding column 411 is vertically connected on the surface of the decorative cover plate 400, and the hook plate 412 is eccentrically connected to the The top of the sliding column 411 is used for hooking the small rear case 300 ; each iron piece groove 420 is provided with a magnetically attractable iron piece 421 .

Correspondingly, with reference to FIG. 6 , FIG. 6 is a structural diagram of a small rear case used in the sliding structure embodiment of the rear decorative cover of the LCD TV of the present invention, and FIG. 6 not only shows that the small rear case 300 faces the screen body structure The structure on the inner side of 200, and the partial structure at the corner B is also enlarged (compared with the large picture, the view of the partial B is slightly changed from the perspective), and a plurality of first sliders are arranged on the small rear shell 300. The rail grooves 310 correspond to the post hooks on the rear decorative cover plate 400 ; the lower end of the first slide rail groove 310 is provided with a hook plate 412 adapted to the corresponding post hook 410 in FIG. 5 to pass through. The disassembly hole 312 is used to facilitate the disassembly and assembly of the rear decorative cover 400; the upper end of the first slide rail groove 310 is symmetrically provided with elastic limiting bumps 311, which are used to lock the corresponding ones in FIG. 5 when the vertical machine is installed. The sliding column 411 of the sliding column hook 410 is used to locate the upper limit position of the rear decorative cover plate 400 ; the two sides of the first sliding rail groove 310 respectively extend the first guide ribs 313 toward the thickness direction of the small rear shell 300 , The distance from the top surface of the first guide rib 313 to the outer side surface of the small rear shell 300 (ie, the side facing the rear trim cover 400 ) is less than or equal to the bottom surface of the hook plate 412 of the spool hook 410 in FIG. 5 to the rear trim The distance between the inner side surface of the cover plate 400 (that is, the side facing the small rear shell 300 ), and the top surface of the first guide rib 313 at the end of the disassembly hole 312 is inclined, which is used for installing and sliding the rear decorative cover plate 400 . , play the role of first loosening and then tightening.

Specifically, the small rear case 300 is also provided with a plurality of magnet seats 314 with elastic card slots corresponding to the iron grooves on the rear decorative cover 400 , and each magnet seat 314 is locked in each magnet seat 314 . A magnet 315 is installed for adsorbing the iron pieces 421 in the corresponding iron piece grooves 420 in FIG. 5 when the rear decorative cover 400 slides up and down, so as to improve the sliding feel of the rear decorative cover 400 .

Specifically, with reference to FIG. 7 , FIG. 7 is an enlarged view of installing a single group of button limit components on the small rear shell of the sliding structure embodiment of the rear decorative cover of the LCD TV of the present invention, (a) is located in the small rear A partial enlarged view of the inner side of the shell 300 against the column fixing structure 330, (b) is an exploded enlarged view of a single group of button limit assemblies 230, (c) is a partial enlarged view of (a) after assembly (with (a) Compared with the angle slightly changed, but consistent with the perspective of Figure 6).

As shown in (a), two second slide rail grooves 320 are laterally spaced at the bottom of the small rear case 300 , and the bottom end of the second slide rail grooves 320 is provided with a fitting for installing the button limiting assembly 230 The button hole 321 is provided with positioning ribs 322 and screw bottom hole columns 323 symmetrically on both sides of the button hole 321, and a positioning slot 324 is arranged on the upper part of the positioning ribs 322; like the first slide rail groove 310, Second guide ribs 325 extend from both sides of the second slide rail groove 320 toward the thickness direction of the small rear case 300 . The distance from one side of the decorative cover plate 400) is less than or equal to the distance from the bottom surface of the hook plate 412 of the spool hook 410 in FIG.

As shown in (b), each set of button limiting components 230 is composed of a fixed seat 231, a spring 232, a sliding piece 233 and a button 234; The plate 233 is located at the bottom of the button 234, and the spring 232 is located between the inner bottom surface of the fixing seat 231 and the bottom surface of the sliding piece 233; the two ends of the fixing seat 231 are symmetrically provided with screw through-hole posts 231a; the sliding piece 233 The two ends of the button 234 are symmetrically provided with a tooth 233a for fitting into the positioning slot 324 in (b); 5, to locate the lower limit position of the rear decorative cover 400; the top surface of the button 234 is provided with a countersunk hole with a rib 234b for manually pressing Rotate the button 234.

As shown in (c), after the button limiting assembly 230 is assembled on the small rear shell 300 by passing screws through the screw holes 231a at both ends of the fixing base 231, in the vertical machine installation state, the rear The decorative cover plate 400 is in the upper limit position under the clamp of the elastic limiting bump 311 in FIG. 6 ; when it is necessary to switch to wall-mounted installation, first remove the speaker base 500, and then forcefully slide the rear decorative cover plate 400 downward , until the spool 411 of the spool hook 410 in FIG. 5 is pressed against the corresponding positioning groove 234a, and the latching teeth 233a symmetrically arranged at both ends of the sliding piece 233 are stuck in the position in FIG. 7(a). In the positioning slot 324 on the upper part of the positioning rib 322, the lower limit position of the rear decorative cover plate 400 can be automatically calibrated; then, as shown in FIG. At the bottom edge of the screen, and through the hanging screw holes 306 of the small rear shell 300 in FIG. The upper part of the small rear case 300 is connected and fixed.

If the rear decorative cover plate 400 needs to be removed, the rear decorative cover plate 400 can be slid up to its upper limit position, then pinch the rib 234b on the top surface of the button 234 with fingers, and rotate 90 degrees while pressing. After releasing the hand, the button 234 can be taken out after sliding out under the elastic force of the spring 232, and then slide down the rear decorative cover 400, so that the spool hook 410 on it falls to the corresponding disassembly hole 312 and the button The rear decorative cover 400 can be easily removed at the hole 321; and when the rear decorative cover 400 is installed again, the spool hook 410 on the rear decorative cover 400 can be aligned with the corresponding removal hole 312 and button hole 321, the rear decorative cover plate 400 can be pressed against the back of the small rear shell 300, and the rear decorative cover plate 400 can be slid upwards until a “click” sound is heard and a corresponding hand feeling is felt, that is, After completing the reinstallation of the rear decorative cover plate 400, finally use your fingers to pinch the flat rib 234b on the top surface of the knob 234 to press and reversely rotate 90°. The symmetrically arranged locking teeth 233a are automatically locked in the positioning slot 324 on the upper part of the positioning rib 322 in (a) of FIG.

It should be understood that the above are only preferred embodiments of the present invention, and are not sufficient to limit the technical solutions of the present invention. For those of ordinary skill in the art, within the spirit and principles of the present invention, they can For example, the speaker base 500 in this document is only an example of the sliding structure of the rear decorative cover plate of the LCD TV of the present invention, but it is not limited to be a speaker base, and can also be a The main chassis base or other bases with a certain thickness, and all these technical solutions after addition, subtraction, replacement, transformation or improvement shall fall within the protection scope of the appended claims of the present invention.

Claims (7)

1. A sliding structure for a rear decorative cover plate of an LCD TV, which is arranged on an LCD TV with a speaker base, and is located between a small rear shell and a rear decorative cover plate; the rear decorative cover plate is installed on the small rear shell It is characterized in that: in the case of wall-mounted installation, the rear decorative cover plate slides down the distance of the thickness of the sound box base to expose the through holes of the hanger screws on the small rear shell; A plurality of sliding column hooks are arranged on the side of the rear decorative cover facing the small rear shell; each sliding column hook is composed of a sliding column and a hook plate, and the sliding column is vertically connected to the decorative cover plate. On the surface, the hook plate is eccentrically connected to the top of the slide column for hooking the small rear shell; correspondingly, a plurality of first sliding rail grooves and the rear decorative cover are provided on the small rear shell The sliding column hooks on the plate correspond to each other; the lower end of the first sliding rail groove is provided with a disassembly hole through which the hook plate of the corresponding sliding column hook passes, so as to facilitate the disassembly and assembly of the rear decorative cover; The upper end of a sliding rail groove is symmetrically provided with elastic limiting bumps, which are used to clamp the sliding column of the corresponding sliding column hook when the vertical machine is installed, so as to locate the upper limit position of the rear decorative cover. 2 . The sliding structure of the rear decorative cover plate of an LCD TV according to claim 1 , wherein the two sides of the first sliding rail groove respectively extend the first guide ribs in the thickness direction of the small rear case, so that the The distance from the top surface of the first guide rib to the outer side of the small rear shell is less than or equal to the distance from the bottom surface of the hook plate of the spool hook to the inner side of the rear decorative cover, and the first guide rib is close to the top of one end of the disassembly hole. The face is inclined. 3. The sliding structure of the rear decorative cover plate of an LCD TV according to claim 2, wherein a plurality of iron sheet grooves are arranged on the side of the rear decorative cover plate facing the small rear case; A magnetically attractable iron sheet is arranged in the grooves; correspondingly, a plurality of magnet seats with elastic card slots are arranged on the small rear shell to match the iron sheet grooves on the rear decorative cover plate. Correspondingly, each magnet seat is clamped with a magnet for attracting the iron pieces in the corresponding iron piece grooves when the rear decorative cover plate slides up and down. 4 . The sliding structure of the rear decorative cover plate of an LCD TV according to claim 3 , wherein on the side of the lower part of the small rear shell facing the screen body structural member, two sets of button limiting components are installed at horizontal intervals, 5 . The utility model is used for positioning the rear decorative cover plate slid down on the back of the small rear shell and preventing the rear decorative cover plate from coming off the small rear shell. 5 . The sliding structure of the rear decorative cover plate of an LCD TV according to claim 4 , wherein two second sliding rail grooves are laterally spaced at the bottom of the small rear case, and the second sliding rail grooves The bottom end of the button is provided with a button hole adapted to install the button limiting component, a positioning rib and a screw bottom hole column are symmetrically arranged on both sides of the button hole, and a positioning slot is arranged on the upper part of the positioning rib; Two guide ribs extend from both sides of the two slide rail grooves in the thickness direction of the small rear shell, and the distance from the top surface of the second guide ribs to the outer side of the small rear shell is less than or equal to the hook plate of the sliding column hook The distance from the bottom surface to the inner side of the rear decorative cover. 6 . The sliding structure of the rear decorative cover plate of the LCD TV according to claim 5 , wherein each group of button limiting components is composed of a fixed seat, a spring, a sliding sheet and a button; After being assembled to the small rear case, the sliding sheet is located at the bottom of the button, and the spring is located between the inner bottom surface of the fixing seat and the bottom surface of the sliding sheet; the two ends of the fixing seat are symmetrically provided with screw through-hole posts; The two ends of the sliding sheet are symmetrically provided with a tooth for fitting into the positioning slot; the head of the button is provided with a positioning groove, which is used to support the corresponding sliding column hook during wall-mounted installation The sliding column is used to locate the lower limit position of the rear decorative cover; the top surface of the button is provided with a countersunk hole with a rib for manually pressing and rotating the button. 7 . The sliding structure of the rear decorative cover plate of the LCD TV according to claim 1 , wherein a wall-hanging riveting post is arranged on the upper edge of the screen body structure part, which is used to pass the hanger during wall-hanging installation. 8 . The screw connects and fixes the wall-mounted hanger on the back of the small rear shell; correspondingly, the through hole of the hanger screw is arranged at the upper edge of the small rear shell.

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