Disclosure of utility model
The utility model aims to provide an anti-collision LED display screen which can be quickly installed on a plate-shaped object, is low in installation difficulty, is convenient for being used in occasions such as camping in the open air, and is high in operation convenience.
Embodiments of the present utility model are implemented as follows:
The embodiment of the utility model provides an anti-collision LED display screen, which comprises a display device, wherein a fixing device is arranged at the rear of the display device, a rotating device is arranged in the middle of the fixing device, the fixing device comprises a fixing box, two guide rails are symmetrically arranged in the fixing box, racks are slidably arranged on the guide rails, a second spring is fixedly arranged on the outer sides of the racks, a clamping arm is fixedly arranged at the rear of the racks, the rotating device comprises a rotating shaft, a winding wheel is arranged at the front end of the rotating shaft, a traction wire is arranged on the winding wheel, a gear is arranged in the middle of the rotating shaft, a ratchet wheel is arranged at the rear end of the rotating shaft, a pawl is arranged at the top of the ratchet wheel, and a third spring is fixedly arranged on one side of the pawl.
Optionally, the display device includes the carriage, carriage internally mounted has the display, the fixed first spring that is provided with in display bottom, be provided with the damping pole in the middle of the first spring.
Optionally, the cross section of the guide rail is T-shaped.
Optionally, the second spring is connected with the fixed box bolt, and the arm lock is L shape.
Optionally, the reel, the gear and the ratchet wheel are respectively connected with the rotating shaft through flat keys.
Optionally, the third spring is connected with the fixed box through a bolt, and the rotating shaft is connected with the fixed box through a bearing.
The anti-collision LED display screen has the beneficial effects that the traction wire is pulled to drive the reel to rotate clockwise, the reel drives the gear to rotate through the rotating shaft, the gear simultaneously meshes with the two racks to drive the clamping arms to slide inwards along the guide rail, the two clamping arms clamp a platy object in an area to be fixed, the quick installation of the display screen is completed, the rotating shaft synchronously drives the ratchet wheel to rotate clockwise when rotating, the ratchet wheel drives the pawl to rotate, the pawl is always tightly attached to the ratchet wheel under the elastic force of the third spring, the ratchet wheel is blocked from reversing after the clamping arms clamp the platy object, therefore, the rotating shaft and the gear cannot retract, the rack position is locked, the traction wire is pulled to drive the clamping arm to automatically lock the device position through the design of arranging the ratchet wheel and the pawl on the rotating shaft, the quick installation is convenient, the installation difficulty is reduced, the situation such as camping is convenient, when the device is required to be disassembled, the pawl top is downwards pushed to be separated from the upper part, the locking of the rotating shaft is released, the compressed second spring drives the two reset racks to rotate through the elastic force, the gear and the ratchet wheel is reversely rotated, the traction wire is wound on the upper side of the winding arm again, and the ratchet wheel is contacted with the reset spring to the reset device through the elastic force, and the reset device is further convenient to rotate, and the whole is arranged outside the winding device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of an anti-collision LED display screen according to the present utility model;
FIG. 2 is a partial cross-sectional view of a display device of an impact resistant LED display screen of the present utility model;
FIG. 3 is a partial cross-sectional view of a fixation device of an impact resistant LED display screen of the present utility model;
FIG. 4 is a schematic structural view of a rotation device of an anti-collision LED display screen according to the present utility model;
Fig. 5 is a schematic diagram of the working principle of a fixing device and a rotating device of an anti-collision LED display screen according to the present utility model.
The icons comprise 1, a display device, 101, a supporting frame, 102, a display, 103, a first spring, 104, a damping rod, 2, a fixing device, 201, a fixing box, 202, a rack, 203, a second spring, 204, a guide rail, 205, a clamping arm, 3, a rotating device, 301, a rotating shaft, 302, a reel, 303, a gear, 304, a ratchet wheel, 305, a pawl, 306, a third spring, 307 and a traction wire.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, or may be directly connected, or may be indirectly connected through an intermediate medium, or may be in communication with the inside of two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-5, an embodiment of the present utility model provides an anti-collision LED display screen, which includes a display device 1, a fixing device 2 is disposed behind the display device 1, and a rotating device 3 is disposed in the middle of the fixing device 2.
As shown in fig. 2, the display device 1 includes a support frame 101, a display 102 is mounted in the support frame 101, a first spring 103 is fixedly disposed at the bottom of the display 102, and a damping rod 104 is disposed in the middle of the first spring 103.
In this embodiment, when in use, the support frame 101 wraps the outer side of the display 102, and the damping rod 104 absorbs the shock when being impacted, so as to prevent the display 102 from being damaged, and the first spring 103 drives the damping rod 104 to reset through elasticity, so as to keep the normal height of the display 102.
As shown in fig. 3, the fixing device 2 includes a fixing box 201, two guide rails 204 are symmetrically disposed inside the fixing box 201, a rack 202 is slidably disposed on the guide rails 204, a second spring 203 is fixedly disposed on the outer side of the rack 202, a clamping arm 205 is fixedly disposed on the rear surface of the rack 202, the section of the guide rail 204 is T-shaped, the second spring 203 is connected with the fixing box 201 through bolts, and the clamping arm 205 is L-shaped.
In this embodiment, the gear 303 engages two racks 202 simultaneously, so that it drives the clamping arms 205 to slide inwards along the guide rails 204, so that the two clamping arms 205 clamp the plate-shaped object in the area to be fixed, the quick installation of the display screen is completed, the compressed second spring 203 drives the two racks 202 to reset through elastic force, the gear 303 and the reel 302 are reversed, the traction wire 307 is rewound on the reel 302, the clamping arms 205 are fixed by a synchronous reset contact device, and the design of arranging the second spring 203 outside the racks 202 is convenient for driving the whole reset through elastic force, so that the convenience of operation is further improved.
As shown in fig. 4, the rotating device 3 includes a rotating shaft 301, a reel 302 is provided at the front end of the rotating shaft 301, a traction wire 307 is provided on the reel 302, a gear 303 is provided in the middle of the rotating shaft 301, a ratchet 304 is provided at the rear end of the rotating shaft 301, a pawl 305 is provided at the top of the ratchet 304, a third spring 306 is fixedly provided at one side of the pawl 305, the reel 302, the gear 303 and the ratchet 304 are respectively connected with the rotating shaft 301 in a flat key manner, the third spring 306 is connected with the fixed box 201 by bolts, and the rotating shaft 301 is connected with the fixed box 201 by bearings.
In this embodiment, the pulling wire 307 is pulled to drive the reel 302 to rotate clockwise, the reel 302 drives the gear 303 to rotate through the rotating shaft 301, the ratchet 304 is synchronously driven to rotate clockwise when the rotating shaft 301 rotates, the pawl 305 is pushed by the elastic force of the third spring 306 to be always clung to the ratchet 304, when the clamp arm 205 clamps a plate-shaped object, the pawl 305 blocks the ratchet 304 from reversing, and therefore, the rotating shaft 301 and the gear 303 cannot retract, the position of the rack 202 is locked, the pull wire 307 is pulled to drive the clamp arm 205 to automatically lock the device position through the design of the ratchet 304 and the pawl 305 arranged on the rotating shaft 301, so that the quick installation is facilitated, the installation difficulty is reduced, the convenience is brought to occasions such as camping in the open air, and when the device needs to be disassembled, the top end of the pawl 305 is pressed downwards, and then the pawl 305 is pushed to the right, so that the pawl 305 is separated from the ratchet 304, and the locking of the rotating shaft 301 is released.
It should be noted that, the present utility model is an anti-impact LED display screen, before use, the device needs to be fixed first, the pulling wire 307 is pulled to drive the reel 302 to rotate clockwise, the reel 302 drives the gear 303 to rotate through the rotating shaft 301, the gear 303 simultaneously engages with the two racks 202, so that the clamping arms 205 are driven to slide inwards along the guide rail 204, the two clamping arms 205 clamp the plate-shaped object in the area to be fixed, the quick installation of the display screen is completed, the rotating shaft 301 rotates to synchronously drive the ratchet 304 to rotate clockwise, the ratchet 304 rotates to stir the pawl 305, the pawl 305 is always closely attached to the ratchet 304 under the elastic force of the third spring 306, when the clamping arms 205 clamp the plate-shaped object, the pawl 305 blocks the ratchet 304 to rotate reversely, therefore, the rotating shaft 301 and the gear 303 cannot rotate backwards, the positions of the racks 202 are locked, by the design of arranging the ratchet 304 and the pawl 305 on the rotating shaft 301, pulling the traction wire 307 can drive the clamping arm 205 to automatically lock the device position, thereby facilitating quick installation, reducing installation difficulty, facilitating field camping and other occasions, when the device needs to be disassembled, the top end of the pawl 305 is pressed downwards, the pawl 305 is shifted rightwards, the pawl is separated from the ratchet wheel 304, the locking of the rotating shaft 301 is released, the compressed second spring 203 drives the two racks 202 to reset through elasticity, the gear 303 and the reel 302 are reversed, the traction wire 307 is wound on the reel 302 again, the clamping arm 205 synchronously resets and contacts the device to fix, the design of the second spring 203 is arranged outside the racks 202, the whole reset is conveniently driven through elasticity, the convenience of operation is further improved, the supporting frame 101 wraps the outside of the display 102, the damping rod 104 absorbs vibration when the display 102 is impacted, the damage of the display 102 is prevented, the first spring 103 drives the damping rod 104 to reset through elasticity, maintaining the normal height of the display 102.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.