TWM610555U - Elevation angle adjusting device for display screen - Google Patents

Abstract

An elevation angle adjustment device for a display screen, comprising a multi-link structure, a fixed part, and a movable part, wherein a point where an imaginary line extended by the fixed part and an imaginary line extended by the movable part meet forms a Virtual center of rotation to shorten the distance between the movable part and the fixed part: when the elevation angle adjustment device is adjusted, a first link, at least one second link, and a third link of the multi-link structure The connecting rod and the at least one fourth connecting rod are synchronously pivoted and extended outward, and the third connecting rod and the at least fourth connecting rod are used as the restriction of the extension, so that the unfolded bottom displacement of the movable part is greater than The amount of top displacement, so that the movable part produces an adjustment of the backward angle of the movable part relative to the fixed part.

Description

Elevation angle adjusting device for display screen

This case is related to an angle adjustment device, especially an elevation angle adjustment device for a display screen.

With the development of technology, digital imaging products are very popular. Nowadays, in order to provide users with a suitable viewing angle, a pivotable device is usually set between a display screen and a bracket. For example, the applicant in this case The hub device shown in the domestic patent publication No. M576674 (corresponding to the Chinese Patent Publication No. CN 209262573U), and the domestic patent publication No. M556815 (corresponding to the Chinese Patent Publication No. CN 207407006U) The hub shown in the patent case). The rotation of the pivot makes the adjustment of the pitch angle of the display screen more user-friendly. However, the hinges of the aforementioned patents are respectively arranged on a connecting piece or a supporting base between the display screen and the bracket, so that there is a certain distance between the display screen and the bracket.

However, the conventional display screens have gradually become thinner, so that the bracket used to support the display screen has also been reduced in thickness to meet the needs of thinning. For example, the applicant’s domestic patent publication No. M588933 in this case The hub device shown in the patent case (corresponding to the Chinese Patent Publication No. CN 210567151U patent case). However, the hinge of the patent is located at one end of a main body and is further pivotally connected in a supporting mechanism for the display screen to be connected, and the other end of the main body is fixed to the bracket, because the main body has a preset So that the distance between the display screen and the bracket cannot be shortened.

However, the demand for large-size display screens is increasing, and not every bracket is suitable for installing the aforementioned hubs. Therefore, in order to solve the above problems, there is an urgent need in the art to provide a hingeless device that can shorten the distance between the display screen and the bracket so that the elevation angle adjustment structure that can be close to each other can be bent, so as to improve the shortcomings of the conventional technology.

This case provides an elevation angle adjustment device for a display screen, which replaces the conventional hinge with a multi-link mechanism that can adjust the backward elevation angle, so as to form a virtual center of rotation between a display screen and a bracket , The center of rotation, which is different from the hinge, is located on a solid mandrel, thereby reducing the overall thickness, and effectively shortening the distance between the display screen and the bracket, and bringing the two closer to each other.

In order to achieve the foregoing objective, the technical means adopted in this case is to provide an elevation adjustment device for a display screen, which includes a multi-link structure including a first link, at least one second link, and a third link. A connecting rod, at least one fourth connecting rod and a plurality of connecting units, at least one side of the first connecting rod is pivotally connected to a second connecting rod by a connecting unit, and the at least one second connecting rod corresponds to the third connecting rod A movable end portion of the first connecting rod is pivotally connected with the connecting unit, and a movable end corresponding to the first connecting rod and the at least one fourth connecting rod is pivoted by using a connecting unit; a fixing member having A bottom plate for connecting to a bracket, and a column extending upward from the bottom plate; the middle section and the upper part of a pair of side walls opposite to the column are respectively penetrated by a connecting unit and pivotally connected to the third connecting rod A fixed end of the first connecting rod and a fixed end of the first connecting rod, so that the fixed ends of the third connecting rod and the first connecting rod are pivotally connected to the column; Attached to the coupling plate of a display screen, the middle section and the upper part of the pair of opposite side walls of the movable member are respectively penetrated by a connecting unit and pivotally connected to a fixed end of the at least one fourth link and the A fixed end of at least one second connecting rod, so that the fixed ends of the at least one fourth connecting rod and the at least one second connecting rod are pivotally connected to the movable part; an imaginary line extending from the fixed part A point that intersects with an imaginary line extended by the movable part forms a virtual center of rotation to shorten the distance between the movable part and the fixed part: when the elevation adjustment device is adjusted, the multi-link structure The connecting rod pivots synchronously and extends outwardly, and the third connecting rod and the at least one fourth connecting rod are used as the restriction of the extension, so that the unfolded bottom displacement of the movable part is greater than the top displacement, so that the The movable part produces a backward angle adjustment relative to the fixed part

In an embodiment, the bottom plate is provided with a plurality of through holes for the connecting member to pass through, so as to fix the bottom plate to the bracket.

An inner face of the column has a first recess, and the first recess is tapered and inclined in the column, and a first upper inner groove is transversely opened in the upper part and the middle section of the first recess. And a first middle inner groove so as to accommodate the fixed end portion of the first connecting rod and the fixed end portion of the third connecting rod that are arranged correspondingly.

The bottom of the inner surface of the column, the middle section of the two end walls, and the top are each transversely provided with a first lower accommodating groove, a first middle accommodating groove, and a first upper accommodating groove, so as to be able to accommodate respectively The movable ends of the at least one second connecting rod and the third connecting rod, the at least one second connecting rod and the middle part of the first connecting rod which are arranged correspondingly, and the at least one first connecting rod The fixed end of the two connecting rod.

The first upper accommodating groove and the first upper inner groove are on the inside and outside of the top of the column to space and position the fixed end of the first connecting rod and the fixed end of the at least one second connecting rod unit.

The coupling board is provided with a plurality of contact holes for the connecting member to pass through, so as to fix the coupling board to the display screen.

An inner surface of the movable part has a second recess for accommodating the fixed end of the at least one fourth connecting rod and the fixed end of the at least one second connecting rod.

A second lower accommodating groove and a second middle accommodating groove are respectively formed transversely at the bottom of the second recess and the middle section of the two side walls, so that the correspondingly arranged at least one fourth connecting rod and the first The movable ends of the connecting rods and a middle part of the at least one second connecting rod and the first connecting rod are in a bulge shape.

The top of the second concave portion is provided with a concave-convex-shaped second upper step portion so as to correspond to the top of an inner surface of the upright column and form a mutual stop, thereby serving as a restriction for closing.

The lateral width of the second recess is greater than the lateral width of the upright column, so that the movable part covers the connecting rods of the multi-link structure and the inner surface of the upright column.

Please refer to FIGS. 1 to 6, which disclose an elevation adjustment device for a display screen, which includes a multi-link structure 1, a fixing member 2 and a movable member 3.

The multi-link structure 1 includes a first link 11, at least one second link 12, a third link 13, at least one fourth link 14, and a plurality of connecting units 4, wherein the first link 11 The second link 12 and the at least one fourth link 14 are pivotally connected to at least one side by two connecting units 4, and the at least one second link 12 is pivotally connected to the third link 13 by a connecting unit 4 . That is, a movable end 121 of the at least one second link 12 is pivotally connected to a movable end 131 of a third link 13 by a connecting unit 4; a movable end 111 of the first link 11 A connecting unit 4 is used to pivotally connect a movable end 141 of a fourth link 14.

Please refer to FIGS. 1 and 2 again. On both sides of the first connecting rod 11, a pair of second connecting rods 12 and a pair of fourth connecting rods 14 parallel to each other are provided, and the pair of second connecting rods 12 and the corresponding ones therebetween The approximately central position of the first connecting rod 11 is for a shaft 41 of the connecting unit 4 to pass through, so that the first connecting rod 11 and the pair of second connecting rods 12 form a pivotal connection, and the pair of second connecting rods A movable end 121 of each rod 12 and a movable end 131 of the third connecting rod 13 corresponding to each other are provided for a shaft 41 of a connecting unit 4 to pass through, so that the two second connecting rods 12 of the pair of second connecting rods 12 move The end 121 is pivotally connected to the movable end 131 of the third link 13, a movable end 141 of each of the pair of fourth links 14 and a movable end 111 of the first link 11 corresponding to each other. A shaft 41 of the connecting unit 4 is penetrated so that the movable end 111 of the first link 11 is pivotally connected to the movable ends 141 of the pair of fourth links 14 and the three shafts 41 are individually After passing through the outer side of the approximately central position of a second connecting rod 12 and the outer side of the movable end 121 and the outer side of a fourth connecting rod 14, at least one elastic body 42, such as a spring, After the dish-shaped shrapnel, it is connected with one end seal 43, such as a screw cap. As a result, the pair of second connecting rods 12 and the first connecting rod 11 are formed in a staggered arrangement, such as an X shape, the pair of second connecting rods 12 and the third connecting rod 13, and the pair of fourth connecting rods 14 and The first connecting rods 11 all form a V-shaped staggered arrangement.

The fixing member 2 is a base, which has a bottom plate 21 for connecting to a bracket 5 (shown in FIGS. 11 and 12 ), and a column 22 extending upward from the bottom plate 21. From FIG. 1 and FIG. 2, it can be clearly observed that the bottom plate 21 is provided with a plurality of perforations 211 for conventional connecting members, such as screws. An inner surface of the column 22 is an inclined surface (inclined from the bottom to the top), and the inner surface of the column 22 has a fixed end 132 for the third link 13 and a fixed end 132 of the first link 11 A first concave portion 221 accommodated in the fixed end 112, wherein the first concave portion 221 is in a tapered slope (inclined and tapered from bottom to top) in the column 22, and is located in the first concave portion 221 A first upper inner groove 225 and a first middle inner groove 226 are transversely provided in the upper part and the middle part respectively, so as to accommodate the corresponding fixed ends of the first connecting rod 11 and the third connecting rod 13 Part 112 and 132, and at the middle section and the top of a pair of side walls opposite to the column 22, the shaft 41 of a connecting unit 4 is used to penetrate and pivotally connect the fixed end 132 of the third link 13 and the The fixed end 112 of the first link 11 makes the third link 13 and the fixed ends 132, 112 of the first link 11 pivotally connected to the column 22, and the two shafts 41 The rod end passes through two places outside one of the side walls of the column 22, and at least one elastic body 42 and one end seal 43 are respectively sleeved.

Furthermore, the bottom of the inner surface of the column 22, the middle section of the two side end walls, and the top of the column 22 respectively define a first lower receiving groove 222, a first middle receiving groove 223, and a first upper receiving groove 222, respectively. The grooves 224 are arranged so as to respectively accommodate the movable ends 121 and 131 of the at least one second connecting rod 12 and the third connecting rod 13, the at least one second connecting rod 12 and the first connecting rod 13 respectively. The rod 11 has a raised middle portion 123 and 113, and a fixed end portion 122 of the at least one second connecting rod 12; wherein, the first upper receiving groove 224 and the first upper inner groove 225 are disposed in The inside and outside of the top of the column 22 are spaced apart and positioned at the fixed end 112 of the first connecting rod 11 and the fixed end 122 of the second connecting rods 12 to prevent the connecting rods 11, 12 from The fixed ends 112 and 122 interfere with each other.

The movable part 3 is a frame body, which has a connecting plate 31 for connecting to a display screen 6 (shown in FIGS. 11 and 12). It can be clearly seen from FIGS. 1 and 2 that the connecting plate 31 is opened A plurality of holes 311 for conventional connecting members, such as screws, to pass through. An inner surface of the movable member 3 has a fixed end 142 for each of the pair of fourth connecting rods 14 and a second recess 32 for receiving the fixed end 122 of the at least one second connecting rod 12, and A shaft 41 of a connecting unit 4 is used to penetrate the middle section and the upper part of a pair of side walls opposed to the movable part 3 and pivotally connect the fixed ends 142 of the pair of fourth links 14 and the pair of first The fixed ends 122 of the two connecting rods 12 enable the fixed ends 142, 122 of the pair of fourth connecting rods 14 and the pair of second connecting rods 12 to be pivotally connected to the movable part 3. The rod end of the shaft 41 penetrates two places outside one of the side walls of the movable member 3, and at least one elastic body 42 and one end seal 43 are respectively sleeved.

Furthermore, a second lower accommodating groove 321 and a second middle accommodating groove 322 are respectively formed transversely at the bottom of the second recess 32 and the middle section of the two side walls, so that the correspondingly arranged at least one fourth accommodating groove can be respectively accommodated. The movable ends 141 and 111 of the connecting rod 14 and the first connecting rod 11, and the at least one second connecting rod 12 and the middle parts 123 and 113 of the first connecting rod 11 are protruding. Wherein the top of the second concave portion 32 has a concave-convex-shaped second upper step portion 323, so that the shaft 41 penetrates laterally and correspondingly engages the top of the inner surface of the column 22 (the second upper step portion 323 The convex portion corresponding to the middle portion of the first upper receiving groove 224) to form a mutual stop, and then as a restriction of closing; on the other hand, the lateral width of the second concave portion 32 is greater than the lateral width of the upright 22 The width is such that the movable part 3 covers the inner surfaces of the connecting rods 41 and the upright column 22 of the multi-link structure 1 to form a shielding and protection effect.

Therefore, the shafts 41 including the first link 11, the pair of second links 12, the third link 13, and the pair of fourth links 14 will be pivotally connected to each other by the shafts 41 of the three connecting unit 4. The W-shaped multi-link structure 1 is then used to connect the two sides of the multi-link structure 1 between the fixed part 2 and the movable part 3 using the shafts 41 of the other four connecting units 4, and then the The isometric rod 41 is then respectively sleeved with the at least one elastic body 42 and the end seal 43. In each of the connecting units 4, the end seals 43 are adjusted to press the at least one elastic body 42 for rotation to form a frictional torsion force. , Thereby resisting the influence of the weight of the display screen 6, that is, completing the assembly of the elevation adjustment device.

After the elevation adjustment device is assembled, two perspective views of different viewing angles are shown in FIGS. 3 and 4. FIG. 5 is a cross-sectional view taken along line AA in FIG. 3 to show that the first link 11 and the third link 13 are in When not operating, the relative positional relationship of the connecting rods 11 and 13 between the fixed part 2 and the movable part 3. 6 is a cross-sectional view taken along line BB in FIG. 3 to show that when the pair of second connecting rods 12 and the pair of fourth connecting rods 14 are not in operation, the connecting rods 12 and 14 are in the fixing member 2 And the relative positional relationship between the movable part 3. In addition, a point where an imaginary line E extended by the fixing member 2 and an imaginary line F extended by the movable member 32 in FIGS. 5 and 6 intersect forms a virtual center of rotation G. At this time, the fixing member 2 and the movable member 3 are close to each other, so that the second upper step portion 323 of the second recess 32 correspondingly engages the top of the inner surface of the column 22 to form a mutual stop.

Figure 11 shows a schematic diagram of attaching the fixing member 2 of the elevation angle adjustment device to a bracket 5, and joining the movable member 3 to a display screen 6. It can be clearly seen from the figure that the elevation angle adjustment device is not operating. , The display screen 6 is close to the column 5, that is, the distance between the display screen 6 and the column 5 can be effectively shortened, and the two are close to each other.

Please refer to Figures 7 to 10, when the elevation angle adjusting device is about to perform the elevation angle, that is, the backward elevation angle, initially the top of the inner surface of the column 22 of the fixing part 2 stops the second part of the movable part 3. The second upper step part 323 makes the movable part 3 open outward from the bottom, and continuously causes the connecting rods 11, 12, 13, 14 to rotate in a clockwise direction with the virtual rotation center G as the axis. During the rotation, the frictional torsion force generated by the multi-link structure 1 can oppose the moment of the weight of the display screen 6, so that the multi-link structure 1 can freely stagnate during the process of outward extension and displacement, and use the third link 13 and the pair of fourth connecting rods 14 are used as the extension restriction, so that the unfolded bottom displacement of the movable part 3 is greater than the top displacement, so that the movable part 3 generates a backward angle relative to the fixed part 2. change.

After the elevation adjustment device adjusts the rear elevation angle, two perspective views of different viewing angles are shown in FIGS. 7 and 8. FIG. 9 is a cross-sectional view taken along line CC in FIG. 7 to show the first link 11 and the third link 11 When the connecting rod 13 adjusts the backward angle, the relative positional relationship of the connecting rods 11 and 13 between the fixed part 2 and the movable part 3. 10 is a cross-sectional view taken along line DD in FIG. 7 to show that when the pair of second connecting rods 12 and the pair of fourth connecting rods 14 are adjusted for the backward angle, the connecting rods 12 and 14 are The relative positional relationship between the fixed part 2 and the movable part 3.

Figure 12 shows a schematic diagram of adjusting the elevation angle adjustment device on the bracket 5 and the display screen 6. It can be clearly observed from the figure that after the elevation angle adjustment device is adjusted, the display screen 6 and the movable part The bottom displacement of 3 is obviously greater than the top displacement, so as to be far away from the upright 5 to form the adjustment of the rear angle of the display screen 6 relative to the upright 5.

Therefore, through the implementation of this solution, the gain effect is that when the display screen is adjusted for the elevation angle, the first link, the pair of second links, and the W-shaped multi-link structure 1 are used to adjust the tilt angle of the display screen. The third connecting rod and the pair of fourth connecting rods are synchronously pivoted and extended outward, and the third connecting rod and the pair of fourth connecting rods are used as the extension limit, so that the unfolded bottom of the movable part The displacement amount is greater than the top displacement amount, so that the movable part produces an adjustment of the backward angle relative to the fixed part. That is to say, the elevation angle adjustment device replaces the conventional hinge device with the multi-link mechanism that can adjust the rear elevation angle, so as to form a virtual device between the display screen (movable part) and the bracket (fixed part). The center of rotation, which is different from the center of rotation of the hub, is located on a solid mandrel, thereby reducing the overall thickness and effectively shortening the distance between the display screen (movable part) and the bracket (fixed part). The two are close to each other, which is a great structure that has never been seen before.

In the description of this case, what needs to be understood is that the terms "center", "horizontal", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer" The orientation or positional relationship indicated in the diagram is based on the orientation or positional relationship shown in the diagram, and is only for the convenience of describing the case and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation or a specific orientation. The azimuth structure and operation cannot therefore be understood as a restriction on this case.

The disclosure in this case is a preferred embodiment, and any partial changes or modifications that are derived from the technical ideas of the case and can be easily inferred by those who are familiar with the art will not deviate from the scope of the patent right of the case.

1: Multi-link structure 11: The first link 111, 121, 131, 141: movable end 112, 122, 132, 142: fixed end 113, 123: middle part 12: The second link 13: The third link 14: The fourth link 2: fixed parts 21: bottom plate 211: Piercing 22: Column 221: first recess 222: The first lower holding tank 223: The first middle holding tank 224: The first upper holding tank 225: The first upper inner groove 226: The first middle inner groove 3: Moving parts 31: Combination board 311: Socket 32: second recess 321: second lower holding tank 322: The second middle holding tank 323: Second Upper Department 4: Connection unit 41: Axle 42: Elastomer 43: end seal 5: Bracket 6: Display screen E, F: imaginary line G: Virtual center of rotation

In order to further reveal the specific technical content of this case, please refer to the diagram first, where: Figure 1 and Figure 2 are three-dimensional views of the elevation angle adjustment device of the present invention from two different viewing angles; Figures 3 and 4 are three-dimensional views of two different viewing angles after the elevation adjustment device is assembled; Figure 5 is a cross-sectional view of Figure 3 taken along the line A-A; Figure 6 is a cross-sectional view of Figure 3 taken along line B-B; Figures 7 and 8 are three-dimensional views of two different viewing angles after the elevation angle adjustment device of the present invention has adjusted the backward elevation angle; Figure 9 is a cross-sectional view of Figure 7 taken along line C-C; Figure 10 is a cross-sectional view of Figure 7 taken along the line D-D; Figure 11 is a schematic diagram of the elevation adjustment device installed between the display screen and the bracket of the present invention; and Fig. 12 is a schematic diagram of the elevation adjustment device of the present invention performing the backward adjustment between the display screen and the bracket.

1: Multi-link structure

11: The first link

111, 121, 131, 141: movable end

112, 122, 132, 142: fixed end

113, 123: middle part

12: The second link

13: The third link

14: The fourth link

2: fixed parts

21: bottom plate

211: Piercing

22: Column

221: first recess

222: The first lower holding tank

223: The first middle holding tank

224: The first upper holding tank

225: The first upper inner groove

3: Moving parts

31: Combination board

311: Socket

32: second recess

321: second lower holding tank

322: The second middle holding tank

323: Second Upper Department

4: Connection unit

41: Axle

42: Elastomer

43: end seal

Claims (10)

An elevation angle adjustment device for a display screen, which includes: A multi-link structure includes a first link, at least one second link, a third link, at least one fourth link, and a plurality of connecting units. At least one side of the first link uses a The connecting unit is pivotally connected to a second connecting rod, a movable end corresponding to the at least one second connecting rod and the third connecting rod is pivotally connected by a connecting unit, and the first connecting rod and the at least one fourth connecting rod are pivoted. A movable end corresponding to the connecting rod is pivotally connected by a connecting unit; A fixing member having a bottom plate for connecting to a bracket and a column extending upward from the bottom plate; the middle section and the upper part of a pair of side walls opposite to the column are respectively penetrated and pivoted by a connecting unit Connect a fixed end of the third link and a fixed end of the first link, so that the fixed ends of the third link and the first link are pivotally connected to the upright post; and A movable piece having a coupling board for attaching to a display screen, the middle section and upper portion of a pair of opposed side walls of the movable piece are respectively penetrated by a connecting unit and pivotally connected to the at least one fourth connection A fixed end of the rod and a fixed end of the at least one second link, so that the fixed ends of the at least one fourth link and the at least one second link are pivotally connected to the movable part; wherein The point where an imaginary line extended by the fixed part intersects with an imaginary line extended by the movable part forms a virtual center of rotation to shorten the distance between the movable part and the fixed part: When the elevation adjustment device is adjusted, the links of the multi-link structure pivot synchronously and extend outwardly, and the third link and the at least one fourth link are used as the extension limits, The unfolded bottom displacement amount of the movable part is greater than the top displacement amount, so that the movable part generates an adjustment of the backward angle of the movable part relative to the fixed part. As described in the first item of the scope of patent application, the elevation angle adjustment device for a display screen, wherein the bottom plate is provided with a plurality of holes for the connecting member to pass through, so as to fix the bottom plate to the bracket. As described in the first item of the scope of patent application, the elevation angle adjustment device for a display screen, wherein an inner face of the column has a first recess, and the first recess is in a tapered and inclined shape in the column. A first upper inner groove and a first middle inner groove are respectively provided in the upper part and the middle part of the first recess to accommodate the corresponding fixed end of the first connecting rod and the third connecting rod. The fixed end of the rod. As described in item 3 of the scope of patent application, the elevation angle adjustment device for a display screen, wherein the bottom of the inner surface of the column, the middle section of the two end walls, and the top of the column each have a first lower accommodating groove, A first middle accommodating groove and a first upper accommodating groove, so as to be able to respectively accommodate the movable ends of the at least one second connecting rod and the third connecting rod, and the at least one second connecting rod respectively. A middle portion of the rod and the first connecting rod in a bulge shape, and the fixed end portion of the at least one second connecting rod. As described in item 4 of the scope of patent application, the elevation angle adjustment device for a display screen, wherein the first upper accommodating groove and the first upper inner groove are on the inner and outer sides of the top of the column to space and position the first The fixed end of a connecting rod and the fixed end of the at least one second connecting rod. As described in the first item of the scope of patent application, the elevation angle adjustment device for a display screen, wherein the coupling plate has a plurality of holes for the connecting member to pass through, so as to fix the coupling plate to the display screen. As described in the first item of the scope of patent application, the elevation angle adjustment device for a display screen, wherein an inner surface of the movable member has the fixed end portion for the at least one fourth link and the at least one second link A second concave portion accommodated in the fixed end portion. The elevation adjustment device for a display screen as described in item 7 of the scope of patent application, wherein the bottom of the second recess and the middle section of the two side walls respectively define a second lower receiving groove and a second middle receiving groove laterally , So as to be able to respectively accommodate the movable ends of the at least one fourth connecting rod and the first connecting rod and an intermediate part of the at least one second connecting rod and the first connecting rod in a bulge shape. The elevation adjustment device for a display screen as described in item 7 of the scope of patent application, wherein the top of the second concave portion has a concave-convex-shaped second upper step portion so as to correspondingly engage the top of an inner surface of the column , And form a mutual stop, and then serve as a restriction for closing. As described in item 7 of the scope of patent application, the device for adjusting the elevation angle of the display screen, wherein the lateral width of the second recess is greater than the lateral width of the column, so that the movable part covers the links and the links of the multi-link structure The inner face of the column.

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