Display screen adjusting device

Abstract

The utility model provides a display screen adjusting device. The display screen adjusting device comprises a first steering assembly; the first steering assembly comprises a seat body, a rotating body and a rotating shaft; the seat body is provided with two limiting bones which are oppositely arranged, the rotating body is provided with a connecting part which is arranged between the two limiting bones, and the rotating shaft extends to the other limiting bone from one limiting bone through the connecting part; the seat body and / or the rotating body are / is provided with a first rotating limiting structure, the rotating shaft is provided with a second rotating limiting structure, and the first rotating limiting structure is connected to the second rotating limiting structure so as to be used for limiting the rotating angle range of the rotating shaft; the seat body or the rotating body is provided with a mounting position for mounting the display screen. The connecting part and the two limiting bones can be rotationally connected through the rotating shaft, so that the rotating body and the seat body can rotate relatively, and rotation of the rotating shaft is only influenced by the rotating angle range. In the rotating angle range, the rotating shaft rotates continuously, and adjustability of any position can be achieved in a certain range.

Description

Technical Field

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

[0002] Display screens are widely used in medical products. They can be divided into two categories according to the application scenarios: fixed and movable. Fixed display screens have a simpler structure and can be assembled using sheet metal brackets or plastic brackets. However, movable display screens require the design of some mechanism to achieve the requirements of flipping up and down and rotating left and right.

[0003] The movable display screen device in the related art uses parts with slots or gear features to constrain its range of motion. However, since multiple slots or gears are usually designed on important parts, the manufacturing cost of the parts increases and the assembly process is complicated. In addition, the display screen in the related art is limited to a single position of rotation up and down or left and right, so that moving a slot or a gear corresponds to moving to a specific position, and the flexible rotation of the display screen cannot be achieved. Utility Model Content

[0004] The technical purpose of the utility model is to provide a display screen adjustment device, aiming to solve the technical problem in the related art that the movable display screen cannot be flexibly rotated.

[0005] To solve the above technical problems, the utility model is implemented as follows: a display screen adjustment device comprises: a first steering assembly; the first steering assembly comprises a base body, a rotating body and a rotating shaft; the base body has two limiting bones arranged opposite to each other, the rotating body has a connecting portion arranged between the two limiting bones, and the rotating shaft extends from one of the limiting bones through the connecting portion to the other limiting bone; the base body and / or the rotating body are provided with a first rotation limiting structure, and the rotating shaft is provided with a second rotation limiting structure, the first rotation limiting structure is connected to the second rotation limiting structure to limit the rotation angle range of the rotating shaft; the base body or the rotating body has a mounting position to mount the display screen.

[0006] Further, the adjustment device further comprises two damping bushings, the connecting portion has an assembly through hole with two ends passing therethrough, the two damping bushings are respectively assembled at the two ends of the assembly through hole, and the two damping bushings both have a connecting hole communicating with the assembly through hole; the two limit bones both have a connecting hole aligned with the assembly through hole;

[0007] The rotating shaft includes a shaft body and a pre-tightening screw, and the shaft body extends from one of the connecting holes and one of the communicating holes, through the assembly through hole, to the other communicating hole and the other connecting hole; one end of the shaft body is provided with a limiting structure abutting against one of the connecting holes, and the pre-tightening screw is threadedly connected to the other end of the shaft body.

[0008] Furthermore, the first rotation limiting structure includes a limiting hole opened in the connecting portion and extending circumferentially along the rotating shaft, and the second rotation limiting structure includes a limiting screw and a threaded hole opened in the rotating shaft, the limiting screw is threadedly connected to the threaded hole, and the limiting screw is located in the limiting hole.

[0009] Further, the first rotation limiting structure includes at least two limiting grooves arranged on the limiting bone and / or the connecting part, the limiting grooves open toward the rotating shaft and extend along the circumference of the rotating shaft, and the second rotation limiting structure includes at least two limiting blocks arranged on the rotating shaft and arranged at a preset interval, the limiting blocks are located in the limiting grooves, and the limiting blocks correspond to the limiting grooves one by one.

[0010] Furthermore, the limit block is a contraction piece, and the contraction piece can move radially along the rotation axis.

[0011] Further, the extension direction of the mounting position is parallel to the axial direction of the rotating shaft; or, the extension direction of the mounting position is perpendicular to the axial direction of the rotating shaft.

[0012] Furthermore, the adjustment device further comprises a second steering assembly, the second steering assembly comprises a flange seat and a rotating shaft, the rotating shaft is rotatably connected to the flange seat;

[0013] One end of the seat body away from the rotating body is fixedly assembled with the rotating shaft;

[0014] The rotating shaft and / or the seat body is provided with a third rotation limiting structure, the flange seat is provided with a fourth rotation limiting structure, and the third rotation limiting structure is connected to the fourth rotation limiting structure.

[0015] Furthermore, the second steering assembly further comprises a bearing disposed between the flange seat and the rotating shaft, and an outer wall of the bearing is interference-fitted with an inner wall of the flange seat;

[0016] And / or, the second steering assembly further comprises a sleeve disposed between the flange seat and the rotating shaft, and along the axial direction of the rotating shaft, the sleeve and the bearing are spaced apart; the outer wall of the sleeve is interference fit with the inner wall of the flange seat.

[0017] Furthermore, there is a gap between the end face of the seat body away from the rotating body and the end face of the flange seat close to the end of the seat body; the third rotation limiting structure includes a slide groove opened on the circumferential side of the rotating shaft and / or opened on the end face of the seat body close to the flange seat, the slide groove extends along the circumference of the rotating shaft, and the flange seat is provided with a positioning block, and the positioning block is located in the slide groove.

[0018] Furthermore, a display screen includes a display screen adjustment device as described above.

[0019] Compared with the related art, the display screen adjustment device in the utility model has the following beneficial effects:

[0020] The display screen adjustment device of the utility model is provided with a first steering assembly, wherein the first steering assembly comprises a seat, a rotating body and a rotating shaft. The rotating body comprises a connecting portion, the connecting portion is connected between two limiting bones of the seat, the rotating shaft passes through one of the limiting bones, the connecting portion and the other limiting bone in sequence, the connecting portion and the two limiting bones can be rotatably connected through the rotating shaft, so that the rotating body and the seat can rotate relatively, and because the seat or the rotating body has a mounting position for mounting the display screen, when the display screen is assembled at the mounting position, the display screen can be rotated by rotating the rotating body or the rotating seat.

[0021] Furthermore, a first rotation limiting structure is provided on the base and / or the rotating body, and a second rotation limiting structure is provided on the rotating shaft. The first rotation limiting structure and the second rotation limiting structure are connected to limit the rotation angle of the rotating shaft. In this way, the rotation of the rotating shaft is only affected by the rotation angle range. Within the rotation angle range, the rotation of the rotating shaft is continuous, rather than rotating to a specific position, and can achieve adjustability at any position within a certain range, thereby realizing flexible rotation of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the display screen in the embodiment of the utility model;

[0024] Figure 2 It is an exploded view of the display screen in the embodiment of the utility model;

[0025] Figure 3is an exploded view of the first steering assembly in an embodiment of the utility model;

[0026] Figure 4 is an exploded view of the second steering assembly in an embodiment of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the seat body in the embodiment of the utility model.

[0028] In the accompanying drawings, each figure mark represents: 1. first steering assembly; 10. mounting position; 11. seat body; 111. limiting bone; 112. slide groove; 12. rotating body; 121. connecting part; 1211. limiting hole; 13. rotating shaft; 131. limiting screw; 2. damping bushing; 3. second steering assembly; 31. flange seat; 311. positioning block; 32. rotating shaft; 33. bearing; 34. bushing; 4. display screen; 5. machine base; 6. pre-tightening screw. DETAILED DESCRIPTION

[0029] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] See also Figure 1-5The embodiment of the utility model provides a display screen adjustment device, comprising: a first steering assembly 1; the first steering assembly 1 comprises a base 11, a rotating body 12 and a rotating shaft 13; the base 11 has two limiting bones 111 arranged opposite to each other, the rotating body 12 has a connecting portion 121 arranged between the two limiting bones 111, and the rotating shaft 13 extends from one of the limiting bones 111 through the connecting portion 121 to the other limiting bone 111; the base 11 and / or the rotating body 12 are provided with a first rotation limiting structure, and the rotating shaft 13 is provided with a second rotation limiting structure, and the first rotation limiting structure is connected to the second rotation limiting structure to limit the rotation angle range of the rotating shaft 13; the base 11 or the rotating body 12 has a mounting position 10 for mounting a display screen 4.

[0033] The display screen adjustment device of the embodiment of the utility model is provided with a first steering assembly 1, wherein the first steering assembly 1 includes a base 11, a rotating body 12 and a rotating shaft 13. The rotating body 12 includes a connecting portion 121, the connecting portion 121 is connected between two limiting bones 111 of the base 11, the rotating shaft 13 passes through one of the limiting bones 111, the connecting portion 121 and the other limiting bone 111 in sequence, the connecting portion 121 and the two limiting bones 111 can be rotatably connected through the rotating shaft 13, so that the rotating body 12 and the base 11 can rotate relatively, and because the base 11 or the rotating body 12 has a mounting position 10 for mounting the display screen 4, when the display screen 4 is assembled at the mounting position 10, the display screen 4 can be rotated by rotating the rotating body 12 or rotating the base 11.

[0034] For further information, see Figure 1-3 A first rotation limiting structure is provided on the base 11 and / or the rotating body 12, and a second rotation limiting structure is provided on the rotating shaft 13. The first rotation limiting structure and the second rotation limiting structure are connected to limit the rotation angle of the rotating shaft 13. In this way, the rotation of the rotating shaft 13 is only affected by the rotation angle range. Within the rotation angle range, the rotation of the rotating shaft 13 is continuous, rather than rotating to a specific position, and can achieve adjustability at any position within a certain range, thereby realizing flexible rotation of the display screen 4.

[0035] It can be understood that the rotation angle range of the rotation shaft 13 is determined by the first rotation limiting structure and / or the second rotation limiting structure, and the rotation angle range can be appropriately adjusted according to implementation requirements.

[0036] It should be understood that the seat body 11 and the rotating body 12 are in a relative rotation relationship, that is, in some embodiments, the seat body 11 may have a connecting portion 121, and the rotating body 12 may have two limiting bones 111. The embodiments of the present utility model are not specifically limited.

[0037] For further information, see Figure 1-3The adjusting device also includes two damping bushings 2, the connecting portion 121 has an assembly through hole with two ends penetrating therethrough, the two damping bushings 2 are respectively assembled at the two ends of the assembly through hole, and the two damping bushings 2 both have connecting holes connected to the assembly through holes; the two limiting bones 111 both have connecting holes aligned with the assembly through holes; the rotating shaft 13 includes a shaft body and a pre-tightening screw 6, the shaft body extends from one of the connecting holes and one of the connecting holes, through the assembly through hole, to the other connecting hole and the other connecting hole; one end of the shaft body is provided with a limiting structure abutting against one of the connecting holes, and the pre-tightening screw 6 is threadedly connected to the other end of the shaft body.

[0038] Specifically, along the axial direction of the rotating shaft 13, the connecting portion 121 is provided with an assembly through hole with both ends passing through. The damping bushing 2 includes a bottom plate and a cylinder formed in one piece or connected in parts, the cylinder is passed through the end of the assembly through hole, one side of the bottom plate abuts against the connecting portion 121, and the other side is used to abut against the limit bone 111. Both the bottom plate and the cylinder are provided with a connecting hole, and the limit bone 111 is also provided with a connecting hole, so as to facilitate the assembly connection of the rotating shaft 13.

[0039] During assembly, firstly assemble the two damping bushings 2 at the two ends of the assembly through hole, and then place the connecting portion 121 with the two damping bushings 2 as a whole between the two limit bones 111, and at the same time align the two connecting holes with the two ends of the assembly through hole. Then insert the rotating shaft 13, and the rotating shaft 13 passes through the connecting hole, the connecting port, the assembly through hole, another connecting port, and another connecting hole in sequence. A limiting structure is provided at one end of the rotating shaft 13, and the limiting structure abuts against the connecting hole. At the other end of the rotating shaft 13, it is threadedly connected with the pre-tightening screw 6. Therefore, the displacement of the rotating shaft 13 in the axial direction can be limited by the limiting structure and the pre-tightening screw 6.

[0040] In addition, a first limiting surface is provided on the circumferential side of the limiting structure, and a second limiting surface matching the first limiting surface is provided on the inner side wall of the connecting hole, and the first limiting surface abuts against the second limiting surface, so that the circumferential displacement of the rotating shaft 13 can be limited. Exemplarily, the shapes of the first limiting surface and the second limiting surface can be runway-shaped.

[0041] Therefore, the embodiment of the utility model also has the effects of simple structure, easy assembly and low cost.

[0042] Furthermore, due to the provision of the damping bushing 2, the bottom plate of the damping bushing 2 is clamped between the limit bone 111 and the connecting portion 121. When the pre-tightening screw 6 is tightened, the limit bone 111 will be pressed against the damping bushing 2 under the tension of the pre-tightening screw 6, thereby indirectly pressing the connecting portion 121. During the relative rotation of the seat body 11 and the rotating body 12, the pre-tightening screw 6 can be used to tighten the limit bone 111 to squeeze the connecting portion 121, and the damping bushing 2 can be squeezed to adjust the resistance during relative rotation, thereby adjusting the feel during rotation and improving the user experience.

[0043] For further information, see Figure 1-3 In some embodiments, the first rotation limiting structure includes a limiting hole 1211 opened in the connecting portion 121 and extending circumferentially along the rotating shaft 13, and the second rotation limiting structure includes a limiting screw 131 and a threaded hole opened in the rotating shaft 13, the limiting screw 131 is threadedly connected to the threaded hole, and the limiting screw 131 is located in the limiting hole 1211.

[0044] Specifically, the threaded hole on the rotating shaft 13 is aligned with the limiting hole 1211. Exemplarily, the threaded hole is arranged along the radial direction of the rotating shaft 13. When the rotating shaft 13 is assembled, the limiting screw 131 can be tightened in the threaded hole between the two limiting bones 111 and in the limiting hole 1211, so that the limiting screw 131 protrudes from the rotating shaft 13. Therefore, when the rotating shaft 13 rotates circumferentially, the limiting screw 131 will move in the limiting hole 1211. In this way, the circumferential extension length of the limiting hole 1211 determines the angular range of rotation of the rotating shaft 13, and the circumferential extension length of the limiting hole 1211 can be set according to actual conditions. The assembly relationship between the limiting screw 131 and the threaded hole is simple and the cost is low.

[0045] In some embodiments, the first rotation limiting structure includes at least two limiting grooves arranged on the limiting bone 111 and / or the connecting part 121, the limiting grooves open toward the rotating shaft 13 and extend along the circumference of the rotating shaft 13, and the second rotation limiting structure includes at least two limiting blocks arranged on the rotating shaft 13 and arranged at a preset interval, the limiting blocks are located in the limiting grooves, and the limiting blocks correspond to the limiting grooves one by one.

[0046] Specifically, the limiting grooves are arranged at a preset spacing, and the limiting blocks are arranged at a preset spacing, so that the limiting grooves and the limiting blocks are aligned one by one. Exemplarily, each of the two limiting bones 111 is provided with a limiting groove, and a limiting groove is also provided at the connecting portion 121. The three limiting grooves can be arranged at equal spacing or at unequal spacing. Corresponding to any point of the limiting grooves, three limiting blocks protrude from the rotating shaft 13. Therefore, when the rotating shaft 13 rotates circumferentially, the limiting blocks move in the limiting grooves. In this way, the circumferential extension length of the limiting grooves determines the angular range of rotation of the rotating shaft 13, and the circumferential extension length of the limiting grooves can be set according to actual conditions.

[0047] Furthermore, in some embodiments, the limit block is a contraction piece, and the contraction piece can move radially along the rotating shaft 13. Since the contraction piece can move radially along the rotating shaft 13, when the rotating shaft 13 is assembled into the limit bone 111 and the connecting portion 121, etc., the contraction piece can be compressed. When the rotating shaft 13 is assembled, each contraction piece corresponds to the limit groove, and the contraction piece can be stretched, so that the contraction piece can protrude from the rotating shaft 13, and the contraction piece can move in the limit groove. Therefore, it has the characteristic of easy assembly.

[0048] Further, the extension direction of the mounting position 10 is parallel to the axial direction of the rotating shaft 13 ; or, the extension direction of the mounting position 10 is perpendicular to the axial direction of the rotating shaft 13 .

[0049] In some embodiments, see Figure 1-3 Specifically, the mounting position 10 is arranged at one end of the rotating body 12 away from the base 11, and the mounting position 10 is parallel to the axial direction of the rotating shaft 13. Therefore, by mounting the display screen 4 at the mounting position 10, the display screen 4 can be rotated and adjusted in the up and down directions through the base 11, the rotating body 12 and the rotating shaft 13, and the adjustment can be realized at any position within the rotation angle range.

[0050] In some embodiments, the extension direction of the mounting position 10 may be perpendicular to the axial direction of the rotating shaft 13. At this time, the display screen 4 is installed at the mounting position 10. Through the base 11, the rotating body 12 and the rotating shaft 13, the display screen 4 can be rotated and adjusted in the left and right directions, and adjustment to any position within the rotation angle range can also be achieved.

[0051] For further information, see Figure 1 , Figure 4 and Figure 5 The adjusting device also includes a second steering assembly 3, which includes a flange seat 31 and a rotating shaft 32, and the rotating shaft 32 is rotatably connected to the flange seat 31; one end of the seat body 11 away from the rotating body 12 is fixedly assembled with the rotating shaft 32; the rotating shaft 32 and / or the seat body 11 are provided with a third rotation limiting structure, and the flange seat 31 is provided with a fourth rotation limiting structure, and the third rotation limiting structure is connected to the fourth rotation limiting structure.

[0052] The rotating shaft 32 can rotate relative to the flange seat 31, and the third rotation limiting structure and the fourth rotation limiting structure can limit the rotation angle range of the rotating shaft 32 and the flange seat 31 relative to each other. Within the rotation angle range, the rotating shaft 32 and the flange seat 31 can rotate at any position, rather than rotating to a specific position, and can achieve flexible rotation. Since the rotating shaft 32 is fixedly assembled with the seat body 11, the mounting position 10 set on the seat body 11, or the rotating body 12 connected to the seat body 11 (the mounting position 10 is set on the rotating body 12), can rotate along with the rotation of the rotating shaft 32. Therefore, when the display screen 4 is assembled at the mounting position 10, the display screen 4 can be flexibly rotated.

[0053] Exemplarily, the mounting position 10 is arranged at one end of the rotating body 12 away from the base 11, the base 11 is connected between the rotating body 12 and the second steering assembly 3, and the adjustment device also includes a base 5, and one end (flange seat 31) of the second steering assembly 3 away from the base 11 is connected to the base 5. The extension direction of the mounting position 10 is parallel to the axial direction of the rotating shaft 13 and perpendicular to the axial direction of the rotating shaft 32. Therefore, when the display screen 4 is assembled at the mounting position 10, the rotation between the rotating body 12 and the base 11 can realize the rotation of the display screen 4 at any position within the angular range of the vertical direction; the rotation between the rotating shaft 32 (the rotating shaft 32 is fixedly assembled with the base 11) and the flange seat 31 can realize the rotation of the display screen 4 at any position within the angular range of the left and right direction.

[0054] For further information, see Figure 1 , Figure 4 and Figure 5 The second steering assembly 3 further includes a bearing 33 disposed between the flange seat 31 and the rotating shaft 32, and the outer wall of the bearing 33 is interference fit with the inner wall of the flange seat 31;

[0055] And / or, the second steering assembly 3 further includes a sleeve 34 disposed between the flange seat 31 and the rotating shaft 32 , and along the axial direction of the rotating shaft 32 , the sleeve 34 and the bearing 33 are spaced apart; the outer wall of the sleeve 34 is interference fit with the inner wall of the flange seat 31 .

[0056] In some embodiments, along the axial direction of the rotating shaft 32, at an assembly position on the inner side of the flange seat 31, the bearing 33 is arranged between the flange seat 31 and the rotating shaft 32, and the outer wall of the bearing 33 is interference fit with the flange seat 31, thereby achieving relative rotation between the flange seat 31 and the rotating shaft 32 and limiting the axial and radial movement of the rotating shaft 32.

[0057] In some embodiments, along the axial direction of the rotating shaft 32, at an assembly position on the inner side of the flange seat 31, the sleeve 34 is arranged between the flange seat 31 and the rotating shaft 32, and the outer wall of the sleeve 34 is interference fit with the flange seat 31, thereby realizing the relative rotation between the flange seat 31 and the rotating shaft 32, and limiting the axial and radial movement of the rotating shaft 32.

[0058] In some embodiments, there may be both a bearing 33 and a sleeve 34, wherein the bearing 33 is assembled at the bottom of the inner side of the flange seat 31, and the sleeve 34 is assembled at the top of the inner side of the flange seat 31. Alternatively, the bearing 33 is assembled at the top of the inner side of the flange seat 31, and the sleeve 34 is assembled at the bottom of the inner side of the flange seat 31.

[0059] For further information, see Figure 1 , Figure 4 and Figure 5 There is a gap between the end face of the seat body 11 away from the rotating body 12 and the end face of the flange seat 31 close to the seat body 11; the third rotation limiting structure includes a slide groove 112 opened on the circumferential side of the rotating shaft 32 and / or opened on the end face of the seat body 11 close to the flange seat 31, the slide groove 112 extends along the circumferential direction of the rotating shaft 32, and the flange seat 31 is provided with a positioning block 311, and the positioning block 311 is located in the slide groove 112.

[0060] Specifically, there is a gap between the end surface of the seat body 11 and the end surface of the flange seat 31, so as to avoid wear between the seat body 11 and the flange seat 31 during the relative rotation process.

[0061] In some embodiments, see Figure 1 , Figure 4 and Figure 5 A slide groove 112 is provided on the end surface of the seat body 11 away from the rotating body 12, and the slide groove 112 extends circumferentially along the rotating shaft 32. An assembly hole is provided at any position of the flange seat 31 corresponding to the slide groove 112. The positioning block 311 is interference fit with the assembly hole and protrudes from the end surface of the flange seat 31. The positioning block 311 can be a I-shaped structure, with part of it located in the assembly hole, part of it located in the interval, and part of it located in the slide groove 112. The overall structure is simple, easy to assemble, and low in cost. When the rotating shaft 32 and the flange seat 31 rotate relative to each other, the positioning block 311 moves in the slide groove 112. In this way, the circumferential extension length of the slide groove 112 determines the rotation angle range of the two. The circumferential extension length of the slide groove 112 can be set according to actual needs.

[0062] In some embodiments, a circumferentially extending slide groove 112 is provided on the circumferential side of the rotating shaft 32, and an assembly hole is provided on the flange seat 31 at any position corresponding to the slide groove 112. The positioning block 311 is interference fit with the assembly hole and protrudes from the end face of the flange seat 31. The positioning block 311 can be an L-shaped structure, with the straight part located in the assembly hole and the part located in the interval, and the bend located in the slide groove 112. The overall structure is simple, easy to assemble, and low in cost. When the rotating shaft 32 and the flange seat 31 rotate relative to each other, the positioning block 311 moves in the slide groove 112, so that the circumferential extension length of the slide groove 112 determines the rotation angle range of the two, and the circumferential extension length of the slide groove 112 can be set according to actual needs.

[0063] For further information, see Figure 1-5 A display screen 4 includes the above display screen adjustment device. The display screen 4 is mounted on the mounting position 10, and can be adjusted to any position within the vertical angle range, and can also be adjusted to any position within the horizontal angle range to meet the use requirements.

[0064] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0065] The above is a description of the technical solution provided by the utility model. For technicians in this field, according to the ideas of the embodiments of the utility model, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A display screen adjustment device, It is characterized in that include: a first steering assembly; The first steering assembly includes a seat body, a rotating body and a rotating shaft; The seat body has two limiting bones arranged opposite to each other, the rotating body has a connecting portion arranged between the two limiting bones, and the rotating shaft extends from one of the limiting bones through the connecting portion to the other limiting bone; The seat body and / or the rotating body is provided with a first rotation limiting structure, and the rotating shaft is provided with a second rotation limiting structure, and the first rotation limiting structure is connected to the second rotation limiting structure to limit the rotation angle range of the rotating shaft; The base or the rotating body has a mounting position for mounting the display screen.

2. The display screen adjustment device according to claim 1, It is characterized in that The display screen adjustment device further comprises two damping bushings, the connecting portion has an assembly through hole with two ends passing through, the two damping bushings are respectively assembled at the two ends of the assembly through hole, and the two damping bushings both have a connecting hole communicating with the assembly through hole; the two limit bones both have a connecting hole aligned with the assembly through hole; The rotating shaft includes a shaft body and a pre-tightening screw, and the shaft body extends from one of the connecting holes and one of the communicating holes, through the assembly through hole, to the other communicating hole and the other connecting hole; one end of the shaft body is provided with a limiting structure abutting against one of the connecting holes, and the pre-tightening screw is threadedly connected to the other end of the shaft body.

3. The display screen adjustment device according to claim 1, It is characterized in that The first rotation limiting structure includes a limiting hole opened in the connecting portion and extending circumferentially along the rotating shaft. The second rotation limiting structure includes a limiting screw and a threaded hole opened in the rotating shaft. The limiting screw is threadedly connected to the threaded hole and is located in the limiting hole.

4. The display screen adjustment device according to claim 1, It is characterized in that The first rotation limiting structure includes at least two limiting grooves arranged on the limiting bone and / or the connecting part, and the limiting grooves open toward the rotating shaft and extend along the circumference of the rotating shaft. The second rotation limiting structure includes at least two limiting blocks arranged on the rotating shaft and arranged at a preset interval, and the limiting blocks are located in the limiting grooves, and the limiting blocks correspond to the limiting grooves one by one.

5. The display screen adjustment device according to claim 4, It is characterized in that The limit block is a contraction piece, and the contraction piece can move radially along the rotation axis.

6. The display screen adjustment device according to claim 1, It is characterized in that The extension direction of the mounting position is parallel to the axial direction of the rotating shaft; or, the extension direction of the mounting position is perpendicular to the axial direction of the rotating shaft.

7. The display screen adjustment device according to claim 1, It is characterized in that The display screen adjustment device further comprises a second steering assembly, the second steering assembly comprising a flange seat and a rotating shaft, the rotating shaft being rotatably connected to the flange seat; One end of the seat body away from the rotating body is fixedly assembled with the rotating shaft; The rotating shaft and / or the seat body is provided with a third rotation limiting structure, the flange seat is provided with a fourth rotation limiting structure, and the third rotation limiting structure is connected to the fourth rotation limiting structure.

8. The display screen adjustment device according to claim 7, It is characterized in that The second steering assembly further comprises a bearing disposed between the flange seat and the rotating shaft, wherein an outer wall of the bearing is interference-fitted with an inner wall of the flange seat; And / or, the second steering assembly further comprises a sleeve disposed between the flange seat and the rotating shaft, and along the axial direction of the rotating shaft, the sleeve and the bearing are spaced apart; the outer wall of the sleeve is interference fit with the inner wall of the flange seat.

9. The display screen adjustment device according to claim 8, It is characterized in that There is a gap between the end surface of the seat body away from the rotating body and the end surface of the flange seat close to the end of the seat body; The third rotation limiting structure includes a slide groove opened on the circumferential side of the rotating shaft and / or opened on the end surface of the seat body close to one end of the flange seat, the slide groove extends along the circumference of the rotating shaft, and the flange seat is provided with a positioning block, and the positioning block is located in the slide groove.

10. A display screen, It is characterized in that It comprises a display screen adjustment device as described in any one of claims 1-9.

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