CN210129367U - Foldable top-mounted display device - Google Patents
Foldable top-mounted display device Download PDFInfo
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- CN210129367U CN210129367U CN201921230852.4U CN201921230852U CN210129367U CN 210129367 U CN210129367 U CN 210129367U CN 201921230852 U CN201921230852 U CN 201921230852U CN 210129367 U CN210129367 U CN 210129367U
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Abstract
The utility model discloses a folding top-mounted display device, which comprises a screen body and a top suction seat, wherein one side of the top suction seat is rotationally connected with the screen body through a butterfly-shaped rotating shaft component; the butterfly-shaped rotating shaft assembly comprises a shaft core, a first connecting arm, an adjusting nut, more than 2 friction ring sheets and more than 2 gaskets; the first connecting arm is provided with a first core hole which is a round hole; the inner holes of the friction ring sheet and the gasket are all waist-shaped holes; the section of the mandrel is waist-shaped, and the end part of the mandrel is provided with threads; the shaft core sequentially penetrates through the first core hole, each friction ring piece and the gasket, the thread at the end part of the shaft core is in threaded connection with the adjusting nut, and the friction ring pieces are in clearance fit with the shaft core; the inner hole tolerance zone of the gasket is smaller than that of the friction ring sheet; the butterfly-shaped rotating shaft assembly cannot cause the first connecting arm to be locked and cannot rotate due to overlarge friction force between the first connecting arm and the adjacent friction ring piece; the pressure among the first connecting arm, each friction ring piece, the gasket can be adjusted by rotating the adjusting nut.
Description
Technical Field
The utility model relates to a display device, concretely relates to foldable top mounted display device.
Background
In public transportation vehicles such as buses, trains, subways, and in public places such as stations and shopping malls, top-mounted display devices for playing video information are often visible. These top mounted display devices generally employ a top mounted bracket to fixedly connect with the display device, and the appearance cannot be changed after installation. In order to ensure that the display device is installed firmly enough, the fixing bracket is generally made of angle steel, I-shaped steel or steel pipes, is very heavy, and can affect the installation quality if the strength of the forming material of the installation position is not enough, for example, the installation point of the top wall of a public transport vehicle is often only a thin iron plate, which can cause the risk of falling off of the display device when the vehicle runs. In addition, some installation positions need to be folded and protected when the display device is not used due to the influence of factors such as height, use frequency and the like.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a foldable top-mounted display device, which can be folded for protection or space saving when not in use, and has an installation area not smaller than the area of a display screen, and disperses the stress of the installation position; the shell of the display device is mainly made of plastics, so that the display device is light in weight and can further reduce stress of the installation position.
A folding top-mounted display device comprises a screen body and a top suction seat, wherein one side of the top suction seat is rotatably connected with the screen body through a butterfly-shaped rotating shaft assembly;
the butterfly-shaped rotating shaft assembly comprises a shaft core, a first connecting arm, an adjusting nut, more than 2 friction ring sheets and more than 2 gaskets;
the first connecting arm is provided with a first core hole which is a round hole;
the inner holes of the friction ring sheet and the gasket are all waist-shaped holes;
the section of the mandrel is waist-shaped, and the end part of the mandrel is provided with threads;
the shaft core sequentially penetrates through the first core hole, each friction ring piece and the gasket, the thread at the end part of the shaft core is in threaded connection with the adjusting nut, and the friction ring pieces are in clearance fit with the shaft core;
the inner hole tolerance zone of the gasket is smaller than that of the friction ring sheet;
when the first connecting arm is subjected to torque force for driving the first connecting arm to rotate, the first connecting arm drives the adjacent friction ring pieces to rotate through friction force, the friction ring pieces adjacent to the first connecting arm can continuously drive the adjacent other friction ring pieces to rotate through the friction force, but are limited by the kidney-shaped holes of the friction ring pieces and the kidney-shaped shaft core, the friction ring pieces can only rotate within a limited range of a gap between the friction ring pieces and the shaft core, and when the friction force is transmitted to the gaskets, the gaskets are limited by the gap between the gaskets and the shaft core and can hardly rotate, and the butterfly-shaped rotating shaft assembly cannot be locked and cannot rotate due to the fact that the friction force between the first connecting arm and the adjacent friction ring pieces is too large due to the structure;
the pressure among the first connecting arm, each friction ring piece, the gasket can be adjusted by rotating the adjusting nut.
Preferably, the first connecting arm is U-shaped, two sides of the first core hole respectively extend in the same direction to form a first connecting arm, and the extending direction of the first connecting arm is parallel to the axial direction of the shaft core;
two first connecting support arms are respectively and fixedly connected with the screen body, when the first connecting arms are stressed to rotate, torsion borne by the first connecting arms is dispersed to the two first connecting support arms, and the double-arm design is more stable and reliable than a single arm.
Preferably, the butterfly-shaped rotating shaft assembly further comprises a second connecting arm which is sleeved on the outer peripheral side of the shaft core;
the second connecting arm comprises a second core hole which is a kidney-shaped hole;
the second connecting arm is U-shaped, two sides of the second core hole respectively extend in the same direction to form second connecting support arms, and the extending direction of the second connecting support arms is parallel to the axial direction of the shaft core;
two second connecting arms are respectively connected with the ceiling seat, when the first connecting arm is stressed to rotate, the first connecting arm can apply friction force to the shaft core to drive the shaft core to rotate, the second connecting arm fixedly connected with the shaft core and the ceiling seat disperses the torsion transmitted by the shaft core to the two second connecting arms, and the double-arm design is more stable and reliable than a single arm.
Preferably, the ceiling base comprises a base body and a sealing plate;
the top surface of the base body is provided with raised line arrays which are in staggered connection in a shape like a Chinese character tian, and the staggered parts of the raised line arrays are provided with cylindrical platforms which are raised out of the raised line arrays;
be provided with the circular through-hole that corresponds with the cylinder platform on the shrouding, the cylinder platform passes circular through-hole and fixes a position the shrouding, and the sand grip array supports in the bottom of shrouding.
Preferably, the middle part of the cylindrical table is provided with a threaded through hole, and the ceiling base is fixed at the top of the installation space through the threaded through hole in a threaded manner.
Preferably, the electric water heater further comprises a control circuit board and a power adapter, a cavity is formed in the space between the base body and the sealing plate, and the control circuit board and the power adapter are arranged in the cavity;
the base body is also provided with a heat dissipation grid;
adopt the fin to be connected between control circuit board and power adapter and the shrouding, the shrouding contacts with installation space's top face, and the shrouding not only is used for the physics protection to control circuit board and power adapter, can also play the effect of heat conduction.
Preferably, the bottom surface of the base body comprises a concave screen seat capable of accommodating the screen body, and when the foldable top-mounted display device is in a folded state, the screen body is accommodated in the rectangular concave screen seat;
the periphery of the concave screen seat is integrally provided with a curved surface edge sealing, and the curved surface edge sealing enables the periphery bottom of the ceiling seat and the top of the mounting space to be in curved surface transition, so that the ceiling seat is more attractive.
A closed switch component is arranged on the opening and closing side of the curved surface sealing edge;
the closed switch component comprises a lock catch and a key for controlling the open-close state of the lock catch, the key is arranged on the surface of the curved surface edge sealing surface in a concealed mode with the same curvature, and the design is to enable the appearance of a product to be a complete curved surface or a plane without bulges.
Preferably, the screen body comprises a screen, an outer shell and an inner shell, and the screen is embedded and installed in an inner cavity formed by combining the outer shell and the inner shell;
the inner shell is provided with at least two inclined arms used for fixing the screen, a gap is reserved between the inclined arms and the outer shell and certain elasticity is achieved, and the design can play a certain shock absorption protection role when the screen body is impacted.
Preferably, the opening and closing side of the inner shell is provided with at least 2 clamping protrusions matched with the lock catches, and when the top-mounted display device is in a folded state, the lock catches prevent the screen body and the ceiling base from opening through buckling the clamping protrusions.
The utility model has the advantages that: a folding top-mounted display device comprises a screen body and a top suction seat, wherein one side of the top suction seat is rotatably connected with the screen body through a butterfly-shaped rotating shaft assembly; the screen body can rotate by nearly 180 degrees through the butterfly-shaped rotating shaft assembly; the butterfly-shaped rotating shaft assembly is provided with a plurality of friction ring sheets, when the screen body rotates to a target angle, the friction ring sheets can provide friction force required by the angle keeping of the screen body, and meanwhile, the rotating shaft can be prevented from being locked and incapable of rotating; the screen body can be folded when the product is not used so as to protect the screen body and save space; the inner shell of the screen body is provided with an inclined arm, the fragile display screen is fixed on the inclined arm, and the external force impact on the screen can be buffered to achieve a certain protection effect.
Drawings
The foldable top-mounted display device of the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a front view of a foldable top-loading display device of the present invention.
Fig. 2 is a perspective view of a foldable top-mounted display device of the present invention.
Fig. 3 is an exploded view of a foldable top-loading display device according to the present invention.
Fig. 4 is an assembly view of the butterfly-shaped rotating shaft assembly of the foldable top-mounted display device of the present invention.
Fig. 5 is an exploded view of the butterfly-shaped shaft assembly of the foldable top-mounted display device of the present invention.
Fig. 6 is a bottom structure view of a base of a foldable top-mount display device according to the present invention.
Fig. 7 is a top view of a foldable top-mounted display device of the present invention.
In the figure:
1-screen body, 11-screen, 12-outer shell, 13-inner shell, 131-oblique arm, 132-clamping convex, 2-ceiling seat, 21-seat body, 211-convex strip array, 212-cylindrical table, 2121-threaded through hole, 213-heat dissipation grid, 214-concave screen seat, 215-curved surface sealed edge, 22-sealing plate, 221-circular through hole, 3-butterfly-shaped rotating shaft component, 30-shaft core, 31-first connecting arm, 311-first core hole, 312-first connecting support arm, 32-adjusting nut, 33-friction ring sheet, 34-gasket, 35-second connecting arm, 351-second core hole, 352-second connecting support arm, 4-closed switch component, 41-lock catch and 42-key, 5-control circuit board, 6-power adapter.
Detailed Description
The foldable top-mounted display device of the present invention will be further described with reference to fig. 1 to 7.
A folding top-mounted display device comprises a screen body 1 and a top suction seat 2, wherein one side of the top suction seat 2 is rotatably connected with the screen body 1 through a butterfly-shaped rotating shaft assembly 3;
the butterfly-shaped rotating shaft assembly 3 comprises a shaft core 30, a first connecting arm 31, an adjusting nut 32, more than 2 friction ring sheets 33 and a gasket 34;
the first connecting arm 31 is provided with a first core hole 311, and the first core hole 311 is a circular hole;
the inner holes of the friction ring sheet 33 and the gasket 34 are all kidney-shaped holes;
the section of the shaft core 30 is waist-shaped, and the end part of the shaft core is provided with threads;
the shaft core 30 sequentially passes through the first core hole 311, each friction ring piece 33 and the gasket 34, the thread at the end part of the shaft core 30 is in threaded connection with the adjusting nut 32, and the friction ring pieces 33 are in clearance fit with the shaft core 30;
the tolerance zone of the inner hole of the gasket 34 is smaller than that of the friction ring piece 33;
when the first connecting arm 31 is subjected to a torque force for driving the first connecting arm 31 to rotate, the first connecting arm 31 drives the adjacent friction ring piece 33 to rotate through a friction force, the friction ring piece 33 adjacent to the first connecting arm 31 can continuously drive the adjacent other friction ring piece 33 to rotate through the friction force, but is limited by the kidney-shaped hole of the friction ring piece 33 and the kidney-shaped shaft core 30, the friction ring piece 33 can only rotate within a limited range of a gap with the shaft core 30, and when the friction force is transmitted to the gasket 34, the gasket 34 is limited by the gap with the shaft core 30 and can hardly rotate, and the structure enables the butterfly-shaped rotating shaft assembly 3 not to be locked and can not rotate due to too large friction force between the first connecting arm 31 and the adjacent friction ring piece 33;
the pressure between the first link arm 31, each friction ring piece 33, and the washer 34 can be adjusted by rotating the adjustment nut 32.
In this embodiment, the first connecting arm 31 is U-shaped, two sides of the first core hole 311 respectively extend in the same direction to form a first connecting arm 312, and the extending direction of the first connecting arm 312 is axially parallel to the axial direction of the shaft core 30;
the two first connecting arms 312 are respectively and fixedly connected with the screen body 1, when the first connecting arm 31 is forced to rotate, the torsion force applied to the first connecting arm 31 is dispersed to the two first connecting arms 312, and the double-arm design is more stable and reliable than a single arm.
In this embodiment, the butterfly-shaped rotating shaft assembly 3 further includes a second connecting arm 35, and the second connecting arm 35 is sleeved on the outer peripheral side of the shaft core 30;
the second connecting arm 35 includes a second core hole 351, and the second core hole 351 is a kidney-shaped hole;
the second connecting arm 35 is U-shaped, two sides of the second core hole 351 respectively extend in the same direction to form a second connecting arm 352, and the extending direction of the second connecting arm 352 is parallel to the axial direction of the shaft core 30;
the two second connecting support arms 352 are respectively fixedly connected with the ceiling base 2, when the first connecting arm 31 is stressed to rotate, the first connecting arm 31 can apply friction force to the shaft core 30 to drive the shaft core 30 to rotate, the second connecting arm 35 fixedly connected with the shaft core 30 and the ceiling base 2 disperses the torsion transmitted by the shaft core 30 to the two second connecting support arms 352, and the double-arm design is more stable and reliable than a single arm.
In this embodiment, the ceiling base 2 includes a base body 21 and a sealing plate 22;
the top surface of the base body 21 is provided with convex strip arrays 211 which are in staggered connection in a 'tian' -shape, and the staggered parts of the convex strip arrays 211 are provided with cylindrical platforms 212 which protrude from the convex strip arrays 211;
the closing plate 22 is provided with a circular through hole 221 corresponding to the cylindrical table 212, the cylindrical table 212 passes through the circular through hole 221 to position the closing plate 22, and the convex strip array 211 is supported at the bottom of the closing plate 22.
In this embodiment, a threaded through hole 2121 is formed in the middle of the cylindrical table 212, and the ceiling mount 2 is screwed and fixed to the top of the installation space through the threaded through hole 2121.
In this embodiment, the power adapter further includes a control circuit board 5 and a power adapter 6, a cavity is formed in a space between the base body 21 and the sealing plate 22, and the control circuit board 5 and the power adapter 6 are disposed in the cavity;
the base body 21 is also provided with a heat dissipation grid 213;
the control circuit board 5 and the power adapter 6 are connected with the sealing plate 22 through the radiating fins, the sealing plate 22 is in contact with the top surface of the installation space, and the sealing plate 22 is used for not only physically protecting the control circuit board 5 and the power adapter 6, but also conducting heat.
In this embodiment, the bottom surface of the base 21 includes a concave screen seat 214 capable of accommodating the screen 1, and when the foldable top-mounted display device is in a folded state, the screen 1 is accommodated in the rectangular concave screen seat 214;
the periphery of the concave screen seat 214 is integrally provided with a curved surface edge sealing 215, and the curved surface edge sealing 215 enables the bottom of the periphery of the ceiling seat 2 and the top of the installation space to be in curved surface transition, so that the ceiling seat is more attractive.
In this embodiment, the opening and closing measurement of the curved seal 215 is provided with a closing switch component 4;
the closing switch component 4 comprises a lock catch 41 and a key 42 for controlling the opening and closing state of the lock catch 41, wherein the key 42 is arranged on the surface of the curved sealing edge 215 in a concealed mode with the same curvature, and the design is to enable the appearance of a product to be a complete curved surface or a plane without bulges.
In this embodiment, the screen body 1 includes a screen 11, an outer shell 12 and an inner shell 13, and the screen 11 is embedded and installed in an inner cavity formed by the combination of the outer shell 12 and the inner shell 13;
the inner housing 13 has at least two inclined arms 131 for fixing the screen 11, and a gap is left between the inclined arms 131 and the outer housing 12, and the design has a certain elasticity, so that the screen 1 can have a certain shock absorption and protection effect when being impacted.
In this embodiment, at least 2 locking protrusions 132 are disposed on the opening and closing side of the inner housing 13 and engaged with the locking device 41, and when the top-mounted display device is in the folded state, the locking device 41 prevents the screen body 1 and the ceiling base 2 from opening by locking the locking protrusions 132.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (10)
1. A folding top-mounted display device is characterized by comprising a screen body (1) and a top suction seat (2), wherein one side of the top suction seat (2) is rotatably connected with the screen body (1) through a butterfly-shaped rotating shaft assembly (3);
the butterfly-shaped rotating shaft assembly (3) comprises a shaft core (30), a first connecting arm (31), an adjusting nut (32), more than 2 friction ring sheets (33) and a gasket (34);
the first connecting arm (31) is provided with a first core hole (311), and the first core hole (311) is a round hole;
the inner holes of the friction ring sheet (33) and the gasket (34) are all kidney-shaped holes;
the section of the shaft core (30) is waist-shaped, and the end part of the shaft core (30) is provided with a thread;
the shaft core (30) sequentially penetrates through the first core hole (311), the friction ring sheets (33) and the gasket (34), the thread at the end part of the shaft core (30) is in threaded connection with the adjusting nut (32), and the friction ring sheets (33) are in clearance fit with the shaft core (30).
2. The folding top-loading display device according to claim 1, wherein the first connecting arm (31) is U-shaped, and the first core hole (311) has two sides extending in the same direction to form a first connecting arm (312), and the first connecting arm (312) extends in a direction axially parallel to the axis (30).
3. The folding top-loading display device according to claim 1, wherein the butterfly spindle assembly (3) further comprises a second connecting arm (35), the second connecting arm (35) is sleeved on the outer periphery side of the spindle core (30);
the second connecting arm (35) comprises a second core hole (351), and the second core hole (351) is a kidney-shaped hole;
the second connecting arm (35) is U-shaped, two sides of the second core hole (351) respectively extend out of a second connecting support arm (352) in the same direction, and the extending direction of the second connecting support arm (352) is axially parallel to the shaft core (30).
4. A folding top-loading display device according to claim 1, wherein said suction top base (2) comprises a base body (21) and a closing plate (22);
convex strip arrays (211) which are connected in a staggered manner in a 'tian' -shape are arranged on the top surface of the base body (21), and cylindrical platforms (212) which protrude out of the convex strip arrays (211) are arranged at the staggered positions of the convex strip arrays (211);
the sealing plate (22) is provided with a circular through hole (221) corresponding to the cylindrical table (212), the cylindrical table (212) penetrates through the circular through hole (221) to position the sealing plate (22), and the raised line array (211) is supported at the bottom of the sealing plate (22).
5. The folding top mount display device according to claim 4, wherein a threaded through hole (2121) is provided in the middle of the cylindrical table (212), and the ceiling-mounted base (2) is screw-fixed to the top of the installation space through the threaded through hole (2121).
6. The folding top-loading display device of claim 5, further comprising a control circuit board (5) and a power adapter (6), wherein a space between the base body (21) and the cover plate (22) forms a cavity, and the control circuit board (5) and the power adapter (6) are disposed in the cavity;
the base body (21) is also provided with a heat dissipation grid (213).
7. The folding top-loading display device according to claim 6, wherein the bottom surface of the base (21) comprises a concave panel holder (214) for receiving the panel (1), the panel (1) being received in the concave panel holder (214) having a rectangular shape when the folding top-loading display device is in a folded state;
the periphery of the concave screen seat (214) is integrally provided with a curved surface sealing edge (215).
8. The folding top-loading display device of claim 7, wherein the open and closed sides of the curved hem seal (215) are provided with a closing switch assembly (4);
the closing switch component (4) comprises a lock catch (41) and a key (42) used for controlling the opening and closing state of the lock catch (41), and the key (42) is arranged on the surface of the curved surface edge sealing (215) in a concealed mode with the same curvature.
9. The folding top-loading display device according to claim 8, wherein the screen body (1) comprises a screen (11), an outer housing (12) and an inner housing (13), the screen (11) is embedded and mounted in an inner cavity formed by the combination of the outer housing (12) and the inner housing (13);
the inner housing (13) has at least two inclined arms (131) for fixing the screen (11).
10. The folding top-loading display device according to claim 9, wherein the opening and closing side of the inner case (13) is provided with at least 2 catching projections (132) engaged with the catching catches (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921230852.4U CN210129367U (en) | 2019-08-01 | 2019-08-01 | Foldable top-mounted display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921230852.4U CN210129367U (en) | 2019-08-01 | 2019-08-01 | Foldable top-mounted display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210129367U true CN210129367U (en) | 2020-03-06 |
Family
ID=69665407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921230852.4U Active CN210129367U (en) | 2019-08-01 | 2019-08-01 | Foldable top-mounted display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210129367U (en) |
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2019
- 2019-08-01 CN CN201921230852.4U patent/CN210129367U/en active Active
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