Radian adjusting device and display screen

Abstract

The embodiment of the utility model provides a radian adjusting device and a display screen. The radian adjusting device comprises a fixed seat, a sliding seat and a locking screw, wherein the fixed seat is provided with a first accommodating groove; the sliding seat is arranged in the first accommodating groove, and the sliding seat can slide along an arc-shaped sliding track relative to the fixed seat; and the locking screw penetrates through the fixed seat and is connected with the sliding seat so as to limit the sliding seat to slide relative to the fixed seat. In the embodiment of the utility model, the sliding seat slides relative to the fixed seat in the first accommodating groove in the arc track to realize the adjustment of positive and negative angles, and meanwhile, the fixed connection of the sliding seat and the fixed seat is realized through the locking screw to maintain the adjustment angle; and the use quality of the radian adjusting device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display, in particular to an arc adjustment device and a display screen. Background Art

[0002] In occasions such as stages and exhibitions, a large display screen is generally required, but a screen that is too large is not convenient to transport. The current solution is to use a connection lock to splice multiple screens into a large screen to increase the display screen. Sometimes the large screen that needs to be spliced ​​together has a certain curvature. At this time, the general connection lock cannot meet the demand, and the curvature connection lock is needed. The curvature connection lock has the function of angle adjustment. However, the curvature connection lock at this stage generally adjusts the positive angle or negative angle, and cannot adjust the positive and negative angles at the same time. In addition, the fixation after the angle adjustment is prone to being too loose or too tight. If it is too loose, the angle cannot be maintained, and if it is too tight, small angle adjustment cannot be achieved. Utility Model Content

[0003] In view of the above problems, embodiments of the present utility model are proposed to provide an arc adjustment device and a display screen that solve the above problems or at least partially solve the above problems.

[0004] In a first aspect, an embodiment of the present utility model provides an arc adjustment device, which includes:

[0005] A fixing seat having a first accommodating groove;

[0006] A sliding seat, disposed in the first accommodating groove, and capable of sliding relative to the fixed seat along an arc-shaped sliding track;

[0007] A locking screw passes through the fixing seat and is connected to the sliding seat to limit the sliding seat from sliding relative to the fixing seat.

[0008] Furthermore, the fixing seat is provided with a first arc-shaped sliding hole for the locking screw to pass through, and the sliding seat is provided with a first threaded hole matching the locking screw on a side facing the first arc-shaped sliding hole.

[0009] Furthermore, the fixing seat is provided with a second threaded hole for the locking screw to pass through, the sliding seat is provided with an arc-shaped groove on one side facing the second threaded hole, an abutment block is provided in the arc-shaped groove, and the end of the locking screw passing through the second threaded hole abuts against the abutment block.

[0010] Furthermore, the abutment block is made of plastic material.

[0011] Furthermore, it also includes a locking assembly, which is arranged in the depth direction of the first accommodating groove and is used to limit the sliding seat from sliding relative to the fixed seat.

[0012] Further, the locking assembly includes a cam handle, a locking rod and a locking member;

[0013] One end of the locking rod is fixedly connected to the fixing seat, and the other end of the locking rod passes through the sliding seat along the depth direction of the first containing groove and is hinged to the cam handle;

[0014] The locking member is sleeved on the locking rod and can slide relative to the locking rod; one side of the locking member is adjacent to the sliding seat, and the other side of the locking member is adjacent to the cam handle;

[0015] The cam handle is rotated, and the cam handle pushes the locking member to cooperate with the sliding seat, so that the sliding seat cannot slide relative to the fixed seat.

[0016] Furthermore, a first positioning tooth is provided on a surface of the locking member close to the sliding seat, and the sliding seat is provided with a second positioning tooth matched with the first positioning tooth.

[0017] Furthermore, the locking assembly also includes an elastic return member, one end of which abuts against the locking member, and the elastic return member can push the locking member to separate from the sliding seat so that the sliding seat can slide relative to the fixed seat.

[0018] Furthermore, the fixing seat includes a bottom plate and a first side plate and a second side plate provided on opposite sides of the bottom plate;

[0019] The locking screw is arranged on the first side plate;

[0020] The second side plate is provided with a second arc-shaped sliding hole, and the sliding seat is provided with a guide column inserted into the second arc-shaped sliding hole, and the guide column can slide in the second arc-shaped sliding hole.

[0021] Furthermore, a sliding scale is provided on a side of the second side plate away from the sliding seat along the length direction of the second arc-shaped sliding hole.

[0022] In a second aspect, an embodiment of the utility model further provides a display screen, which includes a display unit and an arc adjustment device as described in any one of the first aspects above, wherein the arc adjustment device is connected to the display unit.

[0023] In the technical solution provided by the embodiment of the utility model, the fixed seat of the curvature adjustment device has a first accommodating groove, the sliding seat is arranged in the first accommodating groove, and the sliding seat can slide along an arc-shaped sliding trajectory relative to the fixed seat; the locking screw passes through the fixed seat and is connected to the sliding seat to limit the sliding of the sliding seat relative to the fixed seat, and the positive and negative angles are adjusted by the sliding seat sliding in an arc-shaped trajectory relative to the fixed seat in the first accommodating groove. At the same time, the locking screw is used to realize the fixed connection between the sliding seat and the fixed seat to maintain the above-mentioned adjustment angle, thereby improving the use quality of the curvature adjustment device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 An exploded schematic diagram of a three-dimensional structure of a curvature adjustment device provided by an embodiment of the utility model;

[0026] Figure 2 Another exploded schematic diagram of a three-dimensional structure of a curvature adjustment device provided in an embodiment of the utility model;

[0027] Figure 3 Another exploded schematic diagram of a three-dimensional structure of a curvature adjustment device provided in an embodiment of the utility model;

[0028] Figure 4 A schematic cross-sectional structure diagram of a curvature adjustment device provided by an embodiment of the utility model;

[0029] Figure 5 A three-dimensional structural schematic diagram of an arc adjustment device provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the embodiment of the utility model.

[0031] It should be noted that in the description of the present utility model, if the terms "first", "second", etc. appear, "first" and "second" are only used to facilitate the description of different components or names, and cannot be understood as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" appears in the full text, its meaning is that it includes three parallel solutions, taking "A and / or B as an example", including solution A, or solution B, or a solution that satisfies both A and B.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] Please refer to Figure 1 , is a three-dimensional exploded schematic diagram of a curvature adjustment device provided in an embodiment of the utility model, wherein the curvature adjustment device includes a fixed seat 10, a sliding seat 20 and a locking screw 30.

[0034] Among them, the fixed seat 10 has a first accommodating groove 110; the sliding seat 20 is arranged in the first accommodating groove 110, and the sliding seat 20 can slide along an arc-shaped sliding trajectory relative to the fixed seat 10; the locking screw 30 passes through the fixed seat 10 and is connected to the sliding seat 20 to limit the sliding of the sliding seat 20 relative to the fixed seat 10.

[0035] Specifically, the first accommodating groove 110 is located in the middle of the fixed seat 10 and is roughly concave. The sliding seat 20 is arranged in the first accommodating groove 110. The fixed seat 10 forms a semi-enclosed trend with the sliding seat 20. The sliding seat 20 can slide back and forth relative to the fixed seat 10 in the first accommodating groove 110. Here, the sliding trajectory of the sliding seat 20 is arc-shaped. The angle between the sliding seat 20 and the fixed seat 10 can be adjusted by sliding the sliding seat 20 in the fixed seat 10. At the same time, the locking screw 30 passes through the fixed seat 10 and abuts against the sliding seat 20, thereby limiting the sliding seat 20 from sliding relative to the fixed seat 10 to fix the angle between the sliding seat 20 and the fixed seat 10.

[0036] In an embodiment of the utility model, the sliding seat 20 slides in an arc-shaped trajectory relative to the fixed seat 10 in the first accommodating groove 110 to achieve adjustment of the positive and negative angles therebetween, and the locking screw 30 is used to achieve a fixed connection between the sliding seat 20 and the fixed seat 10 to maintain the above-mentioned adjustment angle, thereby improving the use quality of the curvature adjustment device.

[0037] Furthermore, please combine Figure 2 In one feasible implementation manner of the utility model, the fixing seat 10 is provided with a first arc-shaped sliding hole 120 for the locking screw 30 to pass through, and the sliding seat 20 is provided with a first threaded hole 210 matching the locking screw 30 on a side facing the first arc-shaped sliding hole 120 .

[0038] Specifically, the first arc-shaped sliding hole 120 is located on the side plate of the fixed seat 10, and is used for the locking screw 30 to pass through. The first threaded hole 210 is provided on the side surface of the sliding seat 20 opposite to the first arc-shaped sliding hole 120. The first threaded hole 210 matches the locking screw 30. The locking screw 30 passes through the first arc-shaped sliding hole 120 and is inserted into the first threaded hole 210, so that the fixed seat 10 and the sliding seat 20 are connected. When the angle between the fixed seat 10 and the sliding seat 20 needs to be fixed, the locking screw 30 can be tightened; when the angle between the fixed seat 10 and the sliding seat 20 needs to be adjusted, the locking screw 30 only needs to be loosened, so that the sliding seat 20 can slide in the fixed seat 10, and the locking screw 30 slides in the first arc-shaped sliding hole 120.

[0039] In addition, please combine Figure 3 In another feasible embodiment of the utility model, the fixing seat 10 is provided with a second threaded hole 130 for the locking screw 30 to pass through, and the sliding seat 20 is provided with an arc-shaped groove 220 on the side facing the second threaded hole 130, and an abutment block 40 is provided in the arc-shaped groove 220, and the end of the locking screw 30 passing through the second threaded hole 130 abuts against the abutment block 40.

[0040] Specifically, the second threaded hole 130 is provided on the side plate of the fixed seat 10 for the locking screw 30 to pass through, and the arc-shaped groove 220 is provided on the side surface of the sliding seat 20 opposite to the second threaded hole 130, and the abutment block 40 is provided in the arc-shaped groove 220. The end of the locking screw 30 passing through the second threaded hole 130 will abut against the abutment block 40, and the friction between the two is relied on to fix the angle between the fixed seat 10 and the sliding seat 20. When the angle between the fixed seat 10 and the sliding seat 20 needs to be adjusted, it is only necessary to loosen the locking screw 30 to separate the locking screw 30 from the sliding seat 20, so that the sliding seat 20 can slide in the fixed seat 10.

[0041] Furthermore, the abutting block 40 is made of plastic material.

[0042] Here, the abutment block 40 made of plastic material can increase the friction between the fixed seat 10 and the sliding seat 20, so that the angle locking between the fixed seat 10 and the sliding seat 20 is more secure, thereby improving the reliability of the curvature adjustment device.

[0043] Furthermore, please combine Figure 4-5 In other preferred embodiments of the present invention, the curvature adjustment device further includes a locking assembly 50 , which is disposed in the depth direction of the first accommodating groove 110 and is used to limit the sliding seat 20 from sliding relative to the fixed seat 10 .

[0044] Specifically, the arc adjustment device is arranged on the sliding seat 20 along the depth direction of the first accommodating groove 110, which can drive the sliding seat 20 to slide in the fixed seat 10, and at the same time can limit the sliding seat 20 from sliding relative to the fixed seat 10, thereby realizing double locking of the angle between the fixed seat 10 and the sliding seat 20 through the locking screw 30 and the locking assembly 50, and the locking is more stable and reliable. When it is necessary to adjust the angle between the sliding seat 20 and the fixed seat 10, first unlock the locking assembly 50, and then slightly loosen the locking screw 30, so that the sliding of the sliding seat 20 and the fixed seat 10 will not be very smooth, thereby realizing small angle adjustment between the sliding seat 20 and the fixed seat 10.

[0045] Further, the locking assembly 50 includes a cam handle 510, a locking rod 520 and a locking member 530;

[0046] One end of the locking rod 520 is fixedly connected to the fixing seat 10, and the other end of the locking rod 520 passes through the sliding seat 20 along the depth direction of the first receiving groove 110 and is hinged to the cam handle 510;

[0047] The locking member 530 is sleeved on the locking rod 520 and can slide relative to the locking rod 520; one side of the locking member 530 is adjacent to the sliding seat 20, and the other side of the locking member 530 is adjacent to the cam handle 510;

[0048] The cam handle 510 is rotated, and the cam handle 510 pushes the locking member 530 to cooperate with the sliding seat 20 , so that the sliding seat 20 cannot slide relative to the fixing seat 10 .

[0049] Here, a guide portion 140 is provided in the middle of the fixed seat 10, and the guide portion 140 extends along the width direction of the first accommodating groove 110. The sliding seat 20 has an arc-shaped guide groove 230, and the guide portion 140 is inserted into the guide groove 230, and the guide portion 140 can slide in the guide groove 230 to achieve the sliding of the sliding seat 20 relative to the fixed seat 10. A fixing rod 1401 is provided in the guide portion 140, and one end of the fixing rod 1401 is fixedly connected to the fixed seat 10, and the other end of the fixing rod 1401 is inserted into one end of the locking rod 520, so that one end of the locking rod 520 is fixedly connected to the fixed seat 10. The locking member 530 is sleeved on the locking rod 520 and can slide relative to the locking rod 520. One side of the locking member 530 is adjacent to the sliding seat 20 , and the other side of the locking member 530 is adjacent to the cam handle 510 ; by rotating the cam handle 510 , the cam handle 510 pushes the locking member 530 to cooperate with the sliding seat 20 , so that the sliding seat 20 cannot slide relative to the fixed seat 10 .

[0050] Furthermore, a first positioning tooth 5301 is provided on a surface of the locking member 530 close to the sliding seat 20 , and a second positioning tooth 201 cooperating with the first positioning tooth 5301 is provided on the sliding seat 20 .

[0051] Specifically, the first positioning tooth 5301 is provided at the bottom of the locking member 530, that is, the side facing the sliding seat 20, and the second positioning tooth 201 is provided on the top surface of the sliding seat 20, directly opposite to the first positioning tooth 5301, and the two can engage with each other. When the cam handle 510 is rotated downward, the cam handle 510 pushes the locking member 530, so that the first positioning tooth 5301 and the second positioning tooth 201 engage with each other, and the sliding seat 202 is locked with the fixed seat 10 and can no longer slide relative to each other.

[0052] In addition, the locking assembly 50 also includes an elastic return member 540, one end of which abuts against the locking member 530. The elastic return member 540 can push the locking member 530 to separate from the sliding seat 20 so that the sliding seat 20 can slide relative to the fixed seat 10.

[0053] Specifically, the elastic return member 540 is arranged on the locking rod 520, and one end abuts against the bottom of the locking member 530, and the other end of the elastic return member 8 abuts against the fixed rod 1401. When the first positioning tooth 5301 and the second positioning tooth 201 are engaged, the elastic return member 8 is compressed. When the cam handle 510 is rotated upward, the elastic return member 8 pushes the first positioning tooth 5301 to separate from the second positioning tooth 201 under the action of its own elastic force, so that the sliding seat 20 can slide relative to the fixed seat 10.

[0054] In a feasible implementation manner of the present invention, the elastic return member 8 includes a spring, which is sleeved on the locking rod 520 , one end of the spring abuts against the fixing rod 1401 , and the other end of the spring abuts against the bottom of the locking member 530 .

[0055] Furthermore, the fixing seat 10 includes a bottom plate 101 and a first side plate 102 and a second side plate 103 provided on opposite sides of the bottom plate 101;

[0056] The locking screw 30 is provided on the first side plate 101;

[0057] The second side plate 103 is provided with a second arc-shaped sliding hole 1031 , and the sliding seat 20 is provided with a guide column 202 inserted into the second arc-shaped sliding hole 1031 . The guide column 202 can slide in the second arc-shaped sliding hole 1031 .

[0058] Specifically, the first side plate 102 and the second side plate 103 are relatively connected on both sides of the bottom plate 101, and the specific connection method can be an integrated connection or a connection by screws, wherein the locking screw 30 is provided on the first side plate 101, and the second arc-shaped sliding hole 1031 is provided on the second side plate 103. The guide column 202 is provided on the side of the sliding seat 20 facing the second side plate 103, and the guide column 202 is inserted into the second arc-shaped sliding hole 1031. When the sliding seat 20 slides relative to the fixed seat 10, the guide column 202 can slide in the second arc-shaped sliding hole 1031, thereby playing the role of guiding the sliding of the sliding seat 20 and maintaining the sliding balance of the sliding seat 20.

[0059] Furthermore, a sliding scale 1032 is provided on a side of the second side plate 103 away from the sliding seat 20 along the length direction of the second arc-shaped sliding hole 1031 .

[0060] Specifically, the sliding scale 1032 is provided on the outside of the second side panel 103, and is arranged in an arc shape along the length direction of the second arc-shaped sliding hole 1031. The sliding scale 1032 generally displays positive and negative angle numbers, and can clearly indicate the angle between the fixed seat 10 and the sliding seat 20, so as to enhance the user experience of the arc adjustment device.

[0061] In addition, the embodiment of the utility model further provides a display screen, which includes a display unit (not shown in the figure) and any of the curvature adjustment devices described in the above embodiments, and the curvature adjustment device is fixedly connected to the display unit. The display unit can use LED technology or OLED technology, and of course can also use other display technologies.

[0062] Here, for the specific structure, connection relationship and technical effects that can be achieved by the curvature adjustment device, please refer to the description of the above embodiments, and no further details will be given here.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model, rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the embodiments of the utility model.

Claims

1. A curvature adjustment device, characterized in that: include: A fixing seat having a first accommodating groove; A sliding seat, disposed in the first accommodating groove, and capable of sliding relative to the fixed seat along an arc-shaped sliding track; A locking screw passes through the fixing seat and is connected to the sliding seat to limit the sliding seat from sliding relative to the fixing seat.

2. The arc adjustment device according to claim 1, characterized in that: The fixing seat is provided with a first arc-shaped sliding hole for the locking screw to pass through, and the sliding seat is provided with a first threaded hole matching the locking screw on one side facing the first arc-shaped sliding hole.

3. The arc adjustment device according to claim 1, characterized in that: The fixing seat is provided with a second threaded hole for the locking screw to pass through, the sliding seat is provided with an arc-shaped groove on one side facing the second threaded hole, an abutment block is provided in the arc-shaped groove, and the end of the locking screw passing through the second threaded hole abuts against the abutment block.

4. The arc adjustment device according to claim 3, characterized in that: The abutment block is made of plastic material.

5. The arc adjustment device according to any one of claims 1 to 4, characterized in that: It also includes a locking assembly, which is arranged in the depth direction of the first accommodating groove and is used to limit the sliding seat from sliding relative to the fixed seat.

6. The arc adjustment device according to claim 5, characterized in that: The locking assembly includes a cam handle, a locking rod and a locking member; One end of the locking rod is fixedly connected to the fixing seat, and the other end of the locking rod passes through the sliding seat along the depth direction of the first containing groove and is hinged to the cam handle; The locking member is sleeved on the locking rod and can slide relative to the locking rod; one side of the locking member is adjacent to the sliding seat, and the other side of the locking member is adjacent to the cam handle; The cam handle is rotated, and the cam handle pushes the locking member to cooperate with the sliding seat, so that the sliding seat cannot slide relative to the fixed seat.

7. The arc adjustment device according to claim 6, characterized in that: A first positioning tooth is provided on a surface of the locking member close to the sliding seat, and a second positioning tooth matching with the first positioning tooth is provided on the sliding seat.

8. The arc adjustment device according to claim 6, characterized in that: The locking assembly further comprises an elastic reset member, one end of which abuts against the locking member, and the elastic reset member can push the locking member to separate from the sliding seat, so that the sliding seat can slide relative to the fixed seat.

9. The arc adjustment device according to any one of claims 1 to 4, characterized in that: The fixing seat comprises a bottom plate and a first side plate and a second side plate arranged on opposite sides of the bottom plate; The locking screw is arranged on the first side plate; The second side plate is provided with a second arc-shaped sliding hole, and the sliding seat is provided with a guide column inserted into the second arc-shaped sliding hole, and the guide column can slide in the second arc-shaped sliding hole.

10. The arc adjustment device according to claim 9, characterized in that: A sliding scale is provided on a side of the second side plate away from the sliding seat along the length direction of the second arc-shaped sliding hole.

11. A display screen, characterized in that: It comprises a display unit and the curvature adjusting device according to any one of claims 1 to 10, wherein the curvature adjusting device is connected to the display unit.

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