Rotary clamping point structure and display screen rotary support

Abstract

The utility model discloses a rotary clamping point structure and a display screen rotary support, relates to the technical field of display screen equipment, and particularly relates to a rotary clamping point structure and a display screen rotary support, which are used for connecting a display screen and a support, and comprise a fixed base fixedly connected with the support; according to the rotary clamping point structure and the display screen rotary support, the positioning protrusions and the positioning grooves are arranged between the abutting faces of the fixed base and the screen fixing frame in an annular array mode, and through interaction of the positioning protrusions and the positioning grooves, after the screen fixing frame rotates by a fixed angle, the positioning protrusions and the positioning grooves can be clamped in the screen fixing frame. Self-locking of the angle of the screen fixing frame is achieved, so that the display screen can stop rotating at an ideal angle, the angle is kept stable, meanwhile, the elastic body is adopted for pushing the screen fixing frame to abut against the fixing base, and the problem that the display screen shakes in the moving process of the display screen rotating support is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of display screen equipment, and more specifically, to a rotation clamping point structure. In addition, the utility model also relates to a display screen rotation bracket including the rotation clamping point structure. Background Art

[0002] As a display window for electronic information, display screens have the advantages of comprehensive information display and fast update speed. With the rise of the electronics industry and paperless office, users' demand for display screens is no longer limited to fixed ones, but requires movable and rotatable ones. This requires that the mobile frame for installing the display screen must have the ability to rotate the display screen.

[0003] In the prior art, the rotation of the display screen is mostly limited by setting a blocking piece on the rotating shaft, and there is no self-locking mechanism, that is, the rotation angle of the display screen is relatively random, which is greatly affected by the rotation force of the dial, and after rotating to the ideal angle, it cannot be stopped in time to avoid excessive rotation, and there is no self-locking mechanism, and it cannot be maintained stably; and when the mobile frame moves, there will be shaking problems;

[0004] In summary, how to provide a rotation point structure and a display screen rotation bracket that can prevent the display screen from rotating at a random angle, unable to stop rotating at an ideal angle, and can prevent the display screen from shaking during the movement of the mobile frame is a problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a rotating card point structure, which adopts a circular array arrangement of positioning protrusions and positioning grooves between the abutting surfaces of the fixed base and the screen fixing frame. Through the interaction between the two, after rotating a fixed angle, the self-locking of the angle of the screen fixing frame is achieved, so that the display screen can stop rotating at an ideal angle and maintain a stable angle. At the same time, an elastic body is used to push the screen fixing frame to resist the fixed base, thereby reducing the shaking problem of the display screen during the movement of the display screen rotating bracket.

[0006] Another object of the present invention is to provide a display screen rotating bracket including the above-mentioned rotating clamping point structure, which has the same technical features and achieves the same purpose.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A rotating card point structure for connecting a display screen and a bracket, comprising:

[0009] A fixed base, fixedly connected to the bracket;

[0010] A screen fixing bracket, fixedly connected to the display screen, rotatably mounted relative to the fixed base. A number of groups of adapted positioning protrusions and positioning grooves are provided between the contact surfaces of the screen fixing bracket and the fixed base, and the positioning protrusions and the positioning grooves are arranged in an annular array along the relative rotation axis of the fixed base and the screen fixing bracket;

[0011] An elastic body for pushing the contact surfaces of the screen fixing bracket and the fixed base to abut against each other.

[0012] Preferably, a non-circular first through hole is provided at the axis of the fixed base, and a circular second through hole is provided at the axis of the screen fixing bracket. A self-locking screw is simultaneously passed through the first through hole and the second through hole, and the outer periphery of the self-locking screw has a profiling surface identical to the inner wall of the first through hole;

[0013] The elastic body is arranged between the screw head of the self-locking screw and the screen fixing bracket.

[0014] Preferably, the rotation clamping point structure further includes:

[0015] A first rotating body, coaxially and slidably mounted on the fixed base, and the positioning protrusion is provided on one end face of the first rotating body;

[0016] A second rotating body, coaxially and fixedly mounted on the screen fixing bracket, and the positioning groove is provided on the end face of one end of the second rotating body; the combination of the second rotating body and the screen fixing bracket is arranged between the first rotating body and the fixed base, and both ends of the elastic body are respectively abutted against the other end face of the first rotating body and the screw head of the self-locking screw.

[0017] Preferably, a first shaft hole is provided at the axis of the first rotating body, the self-locking screw passes through the first shaft hole, and the inner wall of the first shaft hole has a profiling surface identical to the outer periphery of the self-locking screw.

[0018] Preferably, a second shaft hole is provided at the axis of the second rotating body, the self-locking screw passes through the second shaft hole, and the second shaft hole is a circular hole;

[0019] A number of groups of cantilevers are provided on the outer periphery of the second rotating body, and a number of groups of limiting grooves are provided on the surface of the screen fixing bracket for the cantilevers to be inserted and fixed.

[0020] Preferably, the projections of the positioning protrusion and the positioning groove along the relative rotation axis direction of the first rotating body and the second rotating body are both fan-shaped, the radius direction is perpendicular to the axis of the self-locking screw, and both sides of the rotation direction are bevel structures.

[0021] Preferably, the elastomer is a butterfly gasket, and the height of the positioning protrusion is not greater than the maximum axial deformation of the butterfly gasket.

[0022] Preferably, a concave area is provided at the center position of the screen fixing bracket, and the first rotating body, the second rotating body, and the head of the self-locking screw are all accommodated in the concave area; assembly holes are provided in the non-concave area of the screen fixing bracket for connecting the display screen.

[0023] A display screen rotating bracket includes the rotating clamping point structure described in any one of the above.

[0024] Compared with the prior art, the rotating clamping point structure provided by the present invention has at least the following beneficial effects:

[0025] 1. By providing a matching positioning groove and positioning protrusion between the screen fixing bracket and the fixing base, when the screen fixing bracket and the fixing base rotate to the position where the positive projections of the positioning groove and the positioning protrusion coincide, the positioning groove and the positioning protrusion are combined with each other, which ensures that the display screen can stop at a suitable angle, and at this time, the rotation resistance significantly increases, which can give an obvious feedback to the rotating operator, so that the display screen obtains an ideal stop angle.

[0026] 2. Through the mutual cooperation of the positioning protrusion and the positioning groove, the starting resistance when the screen fixing bracket and the fixing base rotate relative to each other again is increased, thereby restricting the relative rotation of the screen fixing bracket and the fixing base, that is, realizing self-locking, so that the display screen can maintain a stable angle for a long time.

[0027] 3. Using an elastomer to push the screen fixing bracket to abut against the fixing base can prevent the positioning protrusion and the positioning groove from separating, and at the same time helps to promote the connection stability between the screen fixing bracket and the fixing base, and reduces the shaking amplitude of the display screen during the movement of the bracket.

[0028] The display screen rotating bracket provided by the present invention includes the above-mentioned rotating clamping point structure and has the same beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0030] Figure 1 It is a schematic structural diagram of the specific rotating clamping point structure provided by the present invention;

[0031] Figure 2A cross-sectional view of the specific rotation clamping point structure provided by the present utility model;

[0032] Figure 3 A schematic structural diagram of the specific first rotating body provided by the present utility model;

[0033] Figure 4 A schematic structural diagram of the specific second rotating body provided by the present utility model;

[0034] Figure 5 A schematic structural diagram of the specific display screen rotating bracket provided by the present utility model.

[0035] Figures 1-5 In which:

[0036] 1. Self-locking screw; 101. Nut; 2. Butterfly gasket; 3. First rotating body; 301. First shaft hole; 302. Positioning protrusion; 4. Second rotating body; 401. Second shaft hole; 402. Positioning groove; 403. Cantilever; 5. Screen fixing bracket; 501. Limiting groove; 502. Assembly hole; 6. Fixed base. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0038] The core of the present utility model is to provide a rotation clamping point structure, which arranges positioning protrusions and positioning grooves in a circular array between the abutting surfaces of the fixed base and the screen fixing bracket. Through the interaction between the two, after rotating a fixed angle, the self-locking of the angle of the screen fixing bracket is realized, so that the display screen can stop rotating at an ideal angle and maintain the angle stability. At the same time, an elastic body is used to push the screen fixing bracket to abut against the fixed base, thereby reducing the shaking problem of the display screen during the movement of the display screen rotating bracket.

[0039] Another core of the present utility model is to provide a display screen rotating bracket including the above rotation clamping point structure, which has the same technical features and can achieve the same purpose.

[0040] Please refer to Figures 1-4 , a rotation clamping point structure for connecting a display screen and a bracket, including:

[0041] A fixed base 6, fixedly connected to the bracket;

[0042] The screen fixing frame 5 is fixedly connected to the display screen and is relatively rotatably installed with the fixing base 6. A plurality of groups of matching positioning protrusions 302 and positioning grooves 402 are provided between the contact surfaces of the screen fixing frame 5 and the fixing base 6. The positioning protrusions 302 and the positioning grooves 402 are arranged in a ring array along the relative rotation axis of the fixing base 6 and the screen fixing frame 5.

[0043] The elastic body is used to push the contact surfaces of the screen fixing frame 5 and the fixing base 6 to abut against each other.

[0044] During assembly, the fixed base 6 and the screen fixing frame 5 are rotatably installed. In some embodiments, one of the fixed base 6 and the screen fixing frame 5 is fixedly installed with the rotating shaft, and the other is rotatably installed with the rotating shaft, so that the two are relatively rotatably installed, and at least one of the two can move axially relative to the rotating shaft, that is, through the action of the elastic body, the fixed base 6 and the screen fixing frame 5 can abut against each other, so that the positioning protrusion 302 and the positioning groove 402 can be combined with each other and can also be separated from each other;

[0045] When the fixed base 6 and the screen fixing frame 5 rotate until the forward projections of the positioning protrusions 302 and the positioning grooves 402 overlap, and the positioning protrusions 302 are inserted into the positioning grooves 402, the relative rotation resistance between the fixed base 6 and the screen fixing frame 5 suddenly increases, and the original rotation driving force is less than the increased rotation resistance. At this time, the screen fixing frame 5 stops rotating relative to the fixed base 6. At the same time, the sudden increase in relative rotation resistance can also be fed back to the operator who is rotating the display screen, so that the operator can clearly perceive the stop angle of the display screen rotation.

[0046] When it is necessary to continue adjusting the angle, the pushing force on the display screen is increased. When the pushing force is greater than the resistance of the positioning protrusion 302 to disengage from the positioning groove 402, the elastic body is compressed, and the screen fixing frame 5 makes a slight axial movement relative to the rotating shaft, and the positioning protrusion 302 disengages from the positioning groove 402. At this time, the screen fixing frame 5 and the fixing base 6 can rotate relative to each other until the positioning protrusion 302 is engaged with the positioning groove 402 next time.

[0047] By designing the number and position of the positioning protrusions 302 and the positioning grooves 402, the stop angle of the display screen is set. Figure 3 and Figure 4 As shown, four groups of positioning protrusions 302 and positioning grooves 402 are set, and the angles between any two of them are 90°, that is, the display screen will enter a self-locking position every time it rotates 90°. By setting one of the self-locking positions to the horizontal arrangement state of the display screen, the self-locking of the display screen in both vertical and horizontal states can be satisfied.

[0048] Moreover, since the elastic body is provided, no matter the display screen is in a self-locking or non-self-locking state, the elastic body always pushes the screen fixing frame 5 to make it tightly abut against the fixing base 6, thereby reducing the axial shaking between the two and solving the problem of shaking of the display screen during movement.

[0049] In some embodiments, a non-circular first through hole is provided at the axis of the fixed base 6, a circular second through hole is provided at the axis of the screen fixing frame 5, and self-locking screws 1 are provided through the first through hole and the second through hole at the same time, and the outer periphery of the self-locking screw 1 is a contoured surface identical to the inner wall of the first through hole;

[0050] The elastic body is arranged between the nail head of the self-locking screw 1 and the screen fixing frame 5;

[0051] like Figure 2 As shown, the self-locking screw 1 is used as the rotating shaft, wherein the fixed base 6 and the rotating shaft do not rotate relative to each other, while the screen fixing frame 5 can rotate with the self-locking screw 1; in this embodiment, by designing the shape of the outer circumference of the self-locking screw 1 and the inner wall of the first through hole, the two can be in close contact after being combined without relative rotation, such as setting the inner wall of the first through hole and the outer circumference of the self-locking screw 1 to an elliptical or square shape, when the self-locking screw 1 is inserted, the two cannot rotate relative to each other; in some embodiments, a flat key is added between the self-locking screw 1 and the fixed base 6 to ensure that the two do not rotate relative to each other, and this solution still belongs to the protection scope of this application;

[0052] The second through hole is circular in design, so that the screen fixing frame 5 can rotate around the self-locking screw 1, that is, it can rotate relative to the fixing base 6;

[0053] Meanwhile, in some embodiments, the self-locking screw 1 is directly combined with the fixed base 6 to ensure that the relative position relationship between the self-locking screw 1 and the fixed base 6 is stable. Figure 2 As shown, a nut 101 is added to the end of the self-locking screw 1 and a check washer is added to limit the relative rotation of the self-locking screw 1 and the nut 101, thereby ensuring a stable connection between the self-locking screw 1 and the fixed base 6.

[0054] In some embodiments, Figure 1 and Figure 2 As shown, the rotation card point structure also includes:

[0055] The first rotating body 3 is coaxially slidably mounted with the fixed base 6, and the positioning protrusion 302 is arranged on one side end surface of the first rotating body 3;

[0056] The second rotating body 4 is coaxially and fixedly installed with the screen fixing bracket 5, and the positioning groove 402 is arranged on the end face of one end of the second rotating body 4; the combination of the second rotating body 4 and the screen fixing bracket 5 is arranged between the first rotating body 3 and the fixed base 6, and both ends of the elastic body are respectively abutted against the end face of the other end of the first rotating body 3 and the head of the self-locking screw 1;

[0057] By adding the first rotating body 3 and the second rotating body 4, and designing the positioning protrusion 302 and the positioning groove 402 on the first rotating body 3 and the second rotating body 4, wherein the first rotating body 3 can axially move relative to the self-locking screw 1, that is, when the positioning protrusion 302 and the positioning groove 402 are separated, the screen fixing bracket 5 no longer needs to axially displace with the self-locking screw 1, but through the axial displacement of the first rotating body 3, the separation of the positioning protrusion 302 and the positioning groove 402 is realized, reducing the potential factors that cause the display screen to shake during rotation, thereby ensuring the stable installation of the display screen;

[0058] In some embodiments, by adding a bearing with a large diameter between the screen fixing bracket 5 and the fixed base 6, the stability of the axial relative position between the screen fixing bracket 5 and the fixed base 6 is further improved, and the shaking probability of the display screen is further reduced.

[0059] Moreover, using an elastic body to push the first rotating body 3 ensures the timely cooperation of the positioning protrusion 302 and the positioning groove 402. Compared with using an elastic body to push the screen fixing bracket 5, it has higher sensitivity. Because the screen fixing bracket 5 is equipped with a display screen inside, its self-weight is greater, and the resistance during axial movement with the self-locking screw 1 is greater, while the self-weight of the first rotating body 3 is smaller, and the axial movement resistance with the self-locking screw 1 is smaller. In the case of using the same elastic body, the first rotating body 3 has higher movement sensitivity.

[0060] In some embodiments, a first shaft hole 301 is provided at the axis of the first rotating body 3, the self-locking screw 1 passes through the first shaft hole 301, and the inner wall of the first shaft hole 301 is a profiling surface the same as the outer circumference of the self-locking screw 1;

[0061] As Figure 3 shown, the first shaft hole 301 adopts an oval through hole, and the outer circumference of the self-locking screw 1 also adopts an oval. After the two are matched, there will be no relative rotation. However, in some embodiments, a flat key is assembled between the two to ensure that they can move axially relative to each other but cannot rotate relative to each other.

[0062] In some embodiments, a second shaft hole 401 is provided at the axis of the second rotating body 4, the self-locking screw 1 passes through the second shaft hole 401, and the second shaft hole 401 is a circular hole;

[0063] A plurality of groups of cantilevers 403 are provided on the outer periphery of the second rotating body 4, and a plurality of groups of limiting grooves 501 are provided on the surface of the screen fixing bracket 5 for inserting and fixing the cantilevers 403;

[0064] As Figure 4 shown, the second shaft hole 401 is a circular through hole. After the self-locking screw 1 passes through, the second rotating body 4 can rotate relative to the self-locking screw 1, and through the cooperation of the cantilevers 403 provided on the outer periphery of the second rotating body 4 and the limiting grooves 501 on the surface of the screen fixing bracket 5, the relative rotation of the second rotating body 4 and the screen fixing bracket 5 is restricted, making the two a combined body that rotates together.

[0065] In some embodiments, the projections of the positioning protrusion 302 and the positioning groove 402 along the relative rotation axis direction of the first rotating body 3 and the second rotating body 4 are both fan-shaped, and the radial direction is perpendicular to the axis of the self-locking screw 1, and both sides of the rotation direction are inclined surface structures;

[0066] By setting the positioning protrusion 302 and the positioning groove 402 to be fan-shaped, during the process where the positive projections of the positioning protrusion 302 and the positioning groove 402 completely overlap, the effective contact friction area between the first rotating body 3 and the second rotating body 4 gradually decreases, while the normal pressure between the two does not change. That is, before the positioning protrusion 302 and the positioning groove 402 completely overlap, the friction force between the first rotating body 3 and the second rotating body 4 gradually decreases from the normal friction force until the positive projections of the positioning protrusion 302 and the positioning groove 402 completely overlap, and then the friction force suddenly increases, which helps the first rotating body 3 and the second rotating body 4 to move to the position where the positioning protrusion 302 and the positioning groove 402 completely overlap by virtue of the inertia of their own rotation, that is, the self-locking of the screen fixing bracket 5 and the fixed base 6 is realized.

[0067] In some embodiments, the elastic body is a butterfly gasket 2, and the protrusion height of the positioning protrusion 302 is not greater than the maximum axial deformation amount of the butterfly gasket 2;

[0068] When the positioning protrusion 302 is separated from the positioning groove 402, the axial displacement of the first rotating body 3 is equal to the protrusion height of the positioning protrusion 302, and this part of the displacement is the same as the deformation amount of the butterfly gasket 2. During this process, the butterfly gasket 2 undergoes elastic deformation, stores energy, and applies a reverse force to the first rotating body 3 to promote the first rotating body 3 to fit with the second rotating body 4.

[0069] As Figure 1 and Figure 2 shown, a recessed area is provided at the center position of the screen fixing bracket 5, and the first rotating body 3, the second rotating body 4, and the head of the self-locking screw 1 are all accommodated in the recessed area; an assembly hole 502 is provided in the non-recessed area of the screen fixing bracket 5 for connecting the display screen;

[0070] "Passing through" refers to the sunken area. The first rotating body 3, the second rotating body 4 and the head of the self-locking screw 1 are arranged in the sunken area, and the display screen is connected to the assembly hole 502 in the non-sunken area, thereby reducing the influence of the rotation jamming point structure on the installation of the display screen.

[0071] In addition to the rotation jamming point structure disclosed in each of the above embodiments, as Figure 5 shown, the present invention also provides a display screen rotating bracket including the above rotation jamming point structure. For the structures of other parts of this display screen rotating bracket, reference may be made to the prior art and will not be elaborated herein.

[0072] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0073] The above has introduced in detail the rotation jamming point structure and the display screen rotating bracket provided by the present invention. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A rotating card point structure for connecting a display screen and a bracket, characterized in that: include: A fixed base (6) fixedly connected to the bracket; A screen fixing frame (5) is fixedly connected to the display screen and is rotatably mounted relative to the fixing base (6); a plurality of groups of matching positioning protrusions (302) and positioning grooves (402) are provided between contact surfaces of the screen fixing frame (5) and the fixing base (6); the positioning protrusions (302) and the positioning grooves (402) are arranged in a ring array along a relative rotation axis between the fixing base (6) and the screen fixing frame (5); The elastic body is used to push the contact surfaces of the screen fixing frame (5) and the fixing base (6) to abut against each other.

2. The rotating clamping point structure according to claim 1, characterized in that: A non-circular first through hole is provided at the axis of the fixed base (6), and a circular second through hole is provided at the axis of the screen fixing frame (5), and self-locking screws (1) are provided through the first through hole and the second through hole at the same time, and the outer periphery of the self-locking screw (1) is a contoured surface identical to the inner wall of the first through hole; The elastic body is arranged between the nail head of the self-locking screw (1) and the screen fixing frame (5).

3. The rotating clamping point structure according to claim 2, characterized in that: Also includes: A first rotating body (3) is coaxially slidably mounted with the fixed base (6), and the positioning protrusion (302) is arranged on a side end surface of the first rotating body (3); The second rotating body (4) is coaxially fixedly installed with the screen fixing frame (5), and the positioning groove (402) is arranged on the end surface of one end of the second rotating body (4); the combination of the second rotating body (4) and the screen fixing frame (5) is arranged between the first rotating body (3) and the fixed base (6), and the two ends of the elastic body are respectively in contact with the other end surface of the first rotating body (3) and the nail head of the self-locking screw (1).

4. The rotating clamping point structure according to claim 3, characterized in that: A first axial hole (301) is provided at the axis of the first rotating body (3), the self-locking screw (1) passes through the first axial hole (301), and the inner wall of the first axial hole (301) is a contoured surface having the same shape as the outer periphery of the self-locking screw (1).

5. The rotating clamping point structure according to claim 3, characterized in that: A second axial hole (401) is provided at the axis of the second rotating body (4), the self-locking screw (1) passes through the second axial hole (401), and the second axial hole (401) is a circular hole; The outer periphery of the second rotating body (4) is provided with a plurality of groups of cantilevers (403), and the surface of the screen fixing frame (5) is provided with a plurality of groups of limiting grooves (501) for the cantilevers (403) to be inserted and fixed.

6. The rotating clamping point structure according to claim 3, characterized in that: The projections of the positioning protrusion (302) and the positioning groove (402) along the relative rotation axis direction of the first rotating body (3) and the second rotating body (4) are both fan-shaped, and the radial direction is perpendicular to the axis of the self-locking screw (1), and both side edges in the rotation direction are inclined structures.

7. The rotating clamping point structure according to claim 3, characterized in that: The elastic body is a butterfly-shaped gasket (2), and the protrusion height of the positioning protrusion (302) is not greater than the maximum axial deformation of the butterfly-shaped gasket (2).

8. The rotating clamping point structure according to any one of claims 3 to 7, characterized in that: A recessed area is provided at the center of the screen fixing frame (5), and the first rotating body (3), the second rotating body (4) and the nail heads of the self-locking screws (1) are all accommodated in the recessed area; an assembly hole (502) is provided in the non-recessed area of ​​the screen fixing frame (5) for connecting the display screen.

9. A display screen rotating bracket, characterized in that: It includes the rotating clamping point structure described in any one of claims 1-8.

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