Swing device and display

Abstract

The utility model provides a swing device and a displayer, the displayer comprises the swing device and a display screen, the swing device comprises a sleeve, a supporting arm, a first damping structure, a second damping structure and a fixing assembly, and the supporting arm comprises a first section and a second section connected to the first section; a partition plate with a through hole is arranged in the sleeve and divides the inner space of the sleeve into a top cavity and a bottom cavity, the first section comprises a rotating column and a tension column, and the first damping structure comprises a friction piece arranged between the rotating column and the peripheral wall of the top cavity in an interference mode and a pre-tightening structure located in the bottom cavity. The pre-tightening structure is used for providing pre-tightening force towards the bottom cavity for the first section; the second section of the supporting arm extends out of the sleeve in the radial direction, the fixing assembly is rotationally connected to the end, away from the first section, of the second section, and the second damping structure is arranged at the rotational connection position of the fixing assembly and the second section. Left-right and pitching swing can be achieved, the angle can be reliably kept after left-right swing, the structure for achieving left-right rotation is simple, and adjustment and use are convenient.

Description

Technical Field

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

[0002] A ventilator is a device that can achieve autonomous ventilation function. It has been widely used as a respiratory assist device in scenarios such as respiratory failure, anesthesia respiratory management, respiratory support therapy, emergency resuscitation, etc. Therefore, as a commonly used medical device, the ventilator occupies a very important position in the field of modern medicine.

[0003] In the related art, a display screen is installed on the ventilator to display the operation interface. However, after installation, the conventional display screen can usually only realize pitch rotation or left and right rotation, and the structure of left and right rotation is complicated. It is not easy to keep the angle stable after rotation, which is not conducive to adjustment and use by medical staff. Utility Model Content

[0004] The technical purpose of the utility model is to provide a swing device and a display, which can realize both left and right rotation and pitch rotation, and can reliably maintain the angle after left and right rotation. The structure for realizing left and right rotation is simple and easy to adjust and use.

[0005] In order to solve the above technical problems, the utility model is implemented as follows: a swing device is provided, comprising a sleeve, a support arm, a first damping structure, a second damping structure and a fixing assembly, wherein the support arm comprises a first section and a second section connected to the first section;

[0006] A partition with a through hole is arranged in the sleeve to divide its internal space into a top cavity and a bottom cavity, the first section includes a rotating column rotatably connected to the top cavity and a tension column connected to the rotating column and passing through the through hole to the bottom cavity, the first damping structure includes a friction member interference-fittedly arranged between the rotating column and the peripheral wall of the top cavity and a pre-tightening structure located in the bottom cavity and connected to the tension column, the pre-tightening structure is used to provide a pre-tightening force from the top cavity toward the bottom cavity to the first section;

[0007] The second section of the support arm extends radially outward from the sleeve, the fixed component is rotationally connected to the end position of the second section away from the first section, and the second damping structure is arranged at the rotational connection between the fixed component and the second section; the rotation axis of the fixed component is perpendicular to the central axis of the sleeve and the extension direction of the second section.

[0008] Furthermore, a first isolation sleeve is fitted on the wall of the top cavity, a second isolation sleeve is fitted on the wall of the through hole, the rotating column is provided with a plurality of surrounding annular grooves, and the friction member comprises a sealing ring embedded in each of the annular grooves and interference fit with the inner wall of the first isolation sleeve.

[0009] Furthermore, the top sides of the first isolation sleeve and the second isolation sleeve both extend outward to form an extended edge, the extended edge of the first isolation sleeve is attached to the top end surface of the sleeve, and the extended edge of the second isolation sleeve is attached to the top side of the partition.

[0010] Furthermore, the partition is provided with a limiting column located in the top cavity, and the bottom of the rotating column is provided with an abutment block, and the limiting column is on the rotation path of the abutment block.

[0011] Furthermore, the pre-tightening structure includes a first butterfly gasket, a second butterfly gasket, and a pressure block fixed to the end of the tension column, which are sleeved on the tension column and stacked in a direction away from the bottom side of the partition. The first butterfly gasket and the second butterfly gasket are in opposite directions, and the pressure block is pressed against the bottom side of the second butterfly gasket.

[0012] Furthermore, the pre-tightening structure also includes a first friction plate and a second friction plate which are sleeved on the tension column and located between the partition and the first butterfly gasket. The first friction plate is attached to the bottom side of the partition and is fixed to the sleeve in the circumferential direction.

[0013] Furthermore, an axial hole is provided at an end position of the second section away from the first section, and the fixing assembly includes two fixing blocks respectively arranged at two ends of the axial hole, a rotating shaft fixed to the two fixing blocks and passing through the axial hole, a first fixing plate fixed to the two fixing blocks, and a second fixing plate fixed to one side of the first fixing plate, a clamping gap for assembling a part to be fixed is formed between the first fixing plate and the second fixing plate, and the second damping structure is arranged between the rotating shaft and the axial hole.

[0014] Furthermore, the second damping structure includes two damping sleeves respectively embedded in the shaft hole from both ends of the shaft hole, and the damping sleeves are embedded between the rotating shaft and the inner wall of the shaft hole.

[0015] Furthermore, the second section is provided with a limiting arc groove coaxial with the axial hole, and the fixing block is provided with a limiting protrusion extending into the arc groove.

[0016] Furthermore, a display is provided, comprising the swing device as described in any one of the above items and a display screen fixed to the fixed component.

[0017] Compared with the prior art, the swing device and the display in the utility model have the following beneficial effects:

[0018] The display screen can be assembled on the fixed component, and a second damping structure is arranged at the rotation connection between the fixed component and the second section. Therefore, the up and down swing of the display screen can be adjusted and it can be fixed and stabilized at the corresponding angle; the rotating column of the first section is rotatably assembled in the top cavity, and the rotating column can be supported by the partition, which is more stable when rotating, and a friction member with interference fit is arranged between the rotating column and the peripheral wall of the top cavity. In this way, the friction member can provide damping when the display screen rotates, and the rotation angle of the display screen can still be maintained after adjusting the angle. The pre-tightening structure can provide a pre-tightening force from the top cavity to the bottom cavity to the support arm in the bottom cavity to prevent the support arm and the sleeve from falling off, which is stable and reliable, and the pre-tightening structure can also provide damping for the display screen when it rotates left and right to enhance the stability during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the assembly method of the swing device and the rear housing of the display screen in the first viewing angle in the embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the assembly method of the swing device and the rear housing of the display screen in the embodiment of the utility model at a second viewing angle;

[0021] Figure 3 It is a cross-sectional schematic diagram of a part of the structure when the rear housing of the display screen is assembled on the swing device in the embodiment of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the cooperation mode between the support arm and the friction member of the swing device in the embodiment of the utility model;

[0023] Figure 5 It is a schematic diagram of the three-dimensional exploded structure of the sleeve, the first isolation sleeve and the second isolation sleeve of the swing device in the embodiment of the utility model;

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the support arm of the swing device in the embodiment of the utility model;

[0025] Figure 7 The three-dimensional decomposition structure of the partial structure of the swing device in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0026] Figure 8 The three-dimensional decomposition structure of the partial structure of the swing device in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0027] Fig. 9 The three-dimensional decomposition structure of the partial structure of the swing device in the embodiment of the utility model is shown in FIG. Figure 3 .

[0028] In the accompanying drawings, the various reference numerals represent: 1. sleeve; 11. partition; 12. first isolation sleeve; 13. second isolation sleeve; 111. limiting column; 2. support arm; 21. first section; 22. second section; 211. rotating column; 212. tension column; 2111. abutment block; 221. axial hole; 222. limiting arc groove; 3. fixing assembly; 31. rotating shaft; 32. fixing block; 321. limiting protrusion; 4. first damping structure; 41. first friction plate; 42. second friction plate; 43. first butterfly gasket; 44. second butterfly gasket; 45. pressure block; 46. friction member; 5. second damping structure; 6. first fixing plate; 7. second fixing plate; 101. rear shell. 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] In this embodiment, a display is provided, including a swing device and a display screen.

[0033] Among them, combined Figure 1-4The swing device includes a sleeve 1, an arm 2, a first damping structure 4, a second damping structure 5 and a fixing assembly 3. The arm 2 includes a first section 21 and a second section 22 connected to the first section 21. A partition 11 with a through hole is arranged in the sleeve 1 to divide its internal space into a top cavity and a bottom cavity. The first section 21 includes a rotating column 211 rotatably connected to the top cavity and a tension column 212 connected to the rotating column 211 and passing through the through hole to the bottom cavity. The first damping structure 4 includes an interference set between the rotating column 211 and the top The friction member 46 between the peripheral walls of the cavity and the pre-tightening structure located in the bottom cavity and connected to the tension column 212, the pre-tightening structure is used to provide a pre-tightening force from the top cavity toward the bottom cavity to the first section 21; the second section 22 of the support arm 2 extends radially outward from the sleeve 1, the fixing component 3 is rotationally connected to the end position of the second section 22 away from the first section 21, and the second damping structure 5 is arranged at the rotational connection between the fixing component 3 and the second section 22; the rotation axis of the fixing component 3 is perpendicular to the center axis of the sleeve 1 and the extension direction of the second section 22.

[0034] The display screen can be assembled on the fixing component 3, and the second damping structure 5 is arranged at the rotation connection between the fixing component 3 and the second section 22, so that the up and down swing of the display screen can be adjusted and it can be fixed and stabilized at the corresponding angle; the rotating column 211 of the first section 21 is rotatably assembled in the top cavity, and the rotating column 211 can be supported by the partition 11, which is more stable when rotating, and an interference fit friction member 46 is arranged between the rotating column 211 and the peripheral wall of the top cavity, so that the friction member 46 can provide damping when the display screen rotates, and the rotation angle of the display screen can still be maintained after adjusting the angle, and the pre-tightening structure can provide a pre-tightening force from the top cavity to the bottom cavity to the support arm 2 in the bottom cavity to prevent the support arm 2 and the sleeve 1 from falling off, which is stable and reliable, and the pre-tightening structure can also provide damping for the display screen when it rotates left and right to enhance the stability during rotation.

[0035] Furthermore, combined with Figure 3-7 A first isolation sleeve 12 is fitted on the wall of the top cavity, a second isolation sleeve 13 is fitted on the wall of the through hole, a rotating column 211 is provided with a plurality of surrounding annular grooves, and a friction member 46 comprises a sealing ring embedded in each annular groove and interference fit with the inner wall of the first isolation sleeve 12; the partition 11 is provided with a limiting column 111 located in the top cavity, a contact block 2111 is provided at the bottom of the rotating column 211, and the limiting column 111 is on the rotation path of the contact block 2111.

[0036] Specifically, in this embodiment, the top sides of the first isolation sleeve 12 and the second isolation sleeve 13 both have an extended edge extending outward, the first isolation sleeve 12 matches the top cavity, the second isolation sleeve 13 matches the through hole of the partition 11, and the limiting column 111 is an M4*10 hexagon socket screw (with a gasket) fixed to the partition 11. After the limiting column 111 is fixed, the first isolation sleeve 12 and the second isolation sleeve 13 are pressed into the top cavity and the through hole respectively by a hydraulic press. In this way, the extended edge of the first isolation sleeve 12 is attached to the top side of the sleeve 1, and the extended edge of the second isolation sleeve 13 is attached to the top side of the partition 11. When the first section 21 is assembled When in the sleeve 1, the shoulder of the first section 21 abuts against the top side of the extended edge of the first isolation sleeve 12, and the bottom end of the rotating column 211 abuts against the top side of the extended edge of the second isolation sleeve 13. A sealing ring is arranged between the rotating column 211 and the first isolation sleeve 12 and lubricating oil is applied. The arrangement of the first isolation sleeve 12 and the second isolation sleeve 13 can make the rotation between the support arm 2 and the sleeve 1 more stable and reliable, smooth and without scratches, and the arrangement of the limiting column 111 and the abutment block 2111 can limit the rotation angle of the support arm 2 relative to the sleeve 1, which is equivalent to limiting the left and right rotation of the display screen within a preset angle range.

[0037] The rotating column 211 is provided with three annular grooves spaced apart in the axial direction, and each annular groove is provided with a sealing ring. The sealing ring can be made of soft elastic materials such as silicone or rubber. In this way, sufficient damping can be provided by the interference fit of the three sealing rings and the first isolation sleeve 12. In addition, lubricating oil is coated between the rotating column 211 and the first isolation sleeve 12. In this way, the rotation between the rotating column 211 and the sleeve 1 can be made more stable and smooth, and it can also be waterproof and dustproof to avoid internal rust or jamming. The first isolation sleeve 12 and the second isolation sleeve 13 can achieve isolation between the support arm 2 and the side wall of the top cavity, thereby preventing hard contact scratches between the sleeve 1 and the support arm 2, which is safer and has a longer service life. In some embodiments, two, four, five, etc. annular grooves can be provided on the rotating column 211, and correspondingly, a sealing ring is provided for each annular groove.

[0038] Furthermore, the pre-tightening structure includes a first butterfly gasket 43, a second butterfly gasket 44, which are sleeved on the tension column 212 and stacked in a direction away from the bottom side of the partition 11, and a pressure block 45 fixed to the end of the tension column 212. The first butterfly gasket 43 and the second butterfly gasket 44 are in opposite directions, and the pressure block 45 is pressed against the bottom side of the second butterfly gasket 44; the pre-tightening structure also includes a first friction plate 41 and a second friction plate 42 which are sleeved on the tension column 212 and located between the partition 11 and the first butterfly gasket 43. The first friction plate 41 is attached to the bottom side of the partition 11 and is fixed to the sleeve 1 in the circumferential direction.

[0039] Specifically, in the present embodiment, the first friction plate 41 can be made of a copper plate, which is used to isolate the partition 11. A protrusion is provided around the first friction plate 41, and a groove matching the protrusion is provided on the side wall of the bottom cavity. When the first friction plate 41 is sleeved on the tension column 212, the protrusion of the first friction plate 41 is embedded in the groove. In this way, the first friction plate 41 will not rotate relative to the sleeve 1. Since the directions of the first butterfly gasket 43 and the second butterfly gasket 44 are opposite, the first butterfly gasket 43 and the second butterfly gasket 44 will provide elastic force when under pressure. The pressing block 45 is fixed to the end of the tension column 212 by two M5*16 hexagon socket screws, thereby the first friction plate 41 and the second The friction plate 42, the first butterfly gasket 43 and the second butterfly gasket 44 are pressed against the bottom side of the partition 11, so that the elastic force provided by the first butterfly gasket 43 and the second butterfly gasket 44 can make the first friction plate 41 and the second friction plate 42 stick together to generate damping, and can make the connection between the support arm 2 and the sleeve 1 stable, and can make the support arm 2 and the sleeve 1 rotate smoothly during relative rotation. The first damping structure 4 in the present application has the advantages of low cost, small thickness and adjustable damping, and the support arm 2 can rotate smoothly and reliably relative to the sleeve 1, and can stop at any angle within the rotatable range, and can fix the angle after the left and right rotation angle adjustment is completed, which is easy to use.

[0040] Furthermore, combined with Figure 3 , 4 , 8 and 9, an end position of the second section 22 away from the first section 21 is provided with an axial hole 221, the fixing assembly 3 includes two fixing blocks 32 respectively arranged at the two ends of the axial hole 221, a rotating shaft 31 fixed to the two fixing blocks 32 and passing through the axial hole 221, a first fixing plate 6 fixed to the two fixing blocks 32 and a second fixing plate 7 fixed to one side of the first fixing plate 6, a clamping gap for assembling the to-be-fixed parts is formed between the first fixing plate 6 and the second fixing plate 7, and a second damping structure 5 is arranged between the rotating shaft 31 and the axial hole 221; the second damping structure 5 includes two damping sleeves respectively embedded in the axial hole 221 from the two ends of the axial hole 221, and the damping sleeves are embedded between the rotating shaft 31 and the inner wall of the axial hole 221; the second section 22 is provided with a limiting arc groove 222 coaxial with the axial hole 221, and the fixing block 32 protrudes with a limiting protrusion 321 extending into the arc groove.

[0041] Specifically, in the present embodiment, the support arm 2 is die-cast, and the specific material is ADC12, also known as No. 12 aluminum material, which has the characteristics of light structure and low cost; the fixing component 3 includes a rotating shaft 31 passing through the shaft hole 221, and the second damping structure 5 is arranged between the hole wall of the shaft hole 221 and the rotating shaft 31, and the rotating shaft 31 is locked between two fixing blocks 32 by M6*10 hexagon socket screws (with washers), wherein the fixing block 32 is L-shaped, and the first fixing plate 6 is fixed to the two fixing blocks 32 by 4 M4*10 hexagon socket screws (with washers), and the rear shell 101 of the display screen is fixed to the second fixing plate 7 by 5 M3*6 cross slot combination screws, and then the second fixing plate 7 and the rear shell 101 of the display screen are fixed to the first fixing plate 6 by 4 M4*10 cross slot countersunks, so that the display screen can be stably assembled on the swing device.

[0042] The damping sleeve is made of H62 material (brass material), which is annular and has an extension edge at the end, which is located between the side wall of the second section 22 and the side wall of the corresponding fixed block 32. In this way, damping can be provided to the fixed block 32. Moreover, by adjusting the tightness of the connection between the M6*10 hexagon socket screw and the rotating shaft 31, the tightness of the extension edge of the damping sleeve clamped by the two fixed blocks 32 can be adjusted, thereby adjusting the damping size and changing the difficulty of the display screen swinging up and down.

[0043] The second section 22 of the support arm 2 is respectively provided with an arc groove around the two ends of the shaft hole 221, and each fixing block 32 is provided with a protruding limiting protrusion 321, and the limiting protrusion 321 extends into the arc groove on the corresponding side. The length of the arc groove can be adaptively set according to actual conditions. In this way, since the limiting protrusion 321 will be blocked at the end of the arc groove, the angle range of the up and down rotation of the fixing block 32 can be limited, that is, the display screen assembled on the swing device can swing within a limited angle range to prevent it from swinging excessively.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A swing device, characterized in that: It comprises a sleeve, a support arm, a first damping structure, a second damping structure and a fixing assembly, wherein the support arm comprises a first section and a second section connected to the first section; A partition with a through hole is arranged in the sleeve to divide its internal space into a top cavity and a bottom cavity, the first section includes a rotating column rotatably connected to the top cavity and a tension column connected to the rotating column and passing through the through hole to the bottom cavity, the first damping structure includes a friction member interference-fittedly arranged between the rotating column and the peripheral wall of the top cavity and a pre-tightening structure located in the bottom cavity and connected to the tension column, the pre-tightening structure is used to provide a pre-tightening force from the top cavity toward the bottom cavity to the first section; The second section of the support arm extends radially outward from the sleeve, the fixed component is rotationally connected to the end position of the second section away from the first section, and the second damping structure is arranged at the rotational connection between the fixed component and the second section; the rotation axis of the fixed component is perpendicular to the central axis of the sleeve and the extension direction of the second section.

2. The swing device according to claim 1, characterized in that: The top cavity wall is fitted with a first isolation sleeve, the hole wall of the through hole is fitted with a second isolation sleeve, the rotating column is provided with a plurality of surrounding annular grooves, and the friction member includes a sealing ring embedded in each of the annular grooves and interference fit with the inner wall of the first isolation sleeve.

3. The swing device according to claim 2, characterized in that: The top sides of the first isolation sleeve and the second isolation sleeve both extend outward to form an extension edge, the extension edge of the first isolation sleeve is attached to the top end surface of the sleeve, and the extension edge of the second isolation sleeve is attached to the top side of the partition.

4. The swing device according to claim 1, characterized in that: The partition is provided with a limiting column located in the top cavity, and the bottom of the rotating column is provided with an abutment block, and the limiting column is on the rotation path of the abutment block.

5. The swing device according to claim 4, characterized in that: The pre-tightening structure includes a first butterfly gasket, a second butterfly gasket, which are sleeved on the tension column and stacked in a direction away from the bottom side of the partition, and a pressure block fixed to the end of the tension column. The first butterfly gasket and the second butterfly gasket are in opposite directions, and the pressure block is pressed against the bottom side of the second butterfly gasket.

6. The swing device according to claim 5, characterized in that: The pre-tightening structure also includes a first friction plate and a second friction plate which are sleeved on the tension column and located between the partition and the first butterfly gasket. The first friction plate is attached to the bottom side of the partition and is fixed to the sleeve in the circumferential direction.

7. The swing device according to any one of claims 1 to 6, characterized in that: An axial hole is provided at the end position of the second section away from the first section, and the fixing assembly includes two fixing blocks respectively arranged at both ends of the axial hole, a rotating shaft fixed to the two fixing blocks and passing through the axial hole, a first fixing plate fixed to the two fixing blocks, and a second fixing plate fixed to one side of the first fixing plate, a clamping gap for assembling a part to be fixed is formed between the first fixing plate and the second fixing plate, and the second damping structure is arranged between the rotating shaft and the axial hole.

8. The swing device according to claim 7, characterized in that: The second damping structure includes two damping sleeves respectively embedded in the shaft hole from both ends of the shaft hole, and the damping sleeves are embedded between the rotating shaft and the inner wall of the shaft hole.

9. The swing device according to claim 7, characterized in that: The second section is provided with a limiting arc groove coaxial with the axial hole, and the fixing block is provided with a limiting protrusion extending into the arc groove.

10. A display, characterized in that: It comprises a swing device as described in any one of claims 1 to 9 and a display screen fixed to the fixed component.

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