CN116981205B - Protecting device for led display screen - Google Patents

Abstract

The application discloses an LED display screen with a protection function, which relates to the technical field of LED screens, and comprises a carriage, wherein the front end of the carriage is an open end for installing a door body, and the LED display screen with the protection function further comprises: the sealing mechanism and the moving mechanism are fixedly arranged on a carriage plate of the van, a carriage door is fixedly arranged at the front end of the carriage, two sealing plates are movably clamped in grooves formed by two plate grooves and a placing groove respectively in the normal running process, the contact surfaces of the sealing plates and the grooves are subjected to sealing treatment, such as a mode of covering a sealing gasket, a rubber layer and the like, and a positioning rod is inserted into a positioning groove on the plate groove under the action of the elastic force of a second spring, so that the sealing plates are kept clamped in the grooves, the carriage is kept in a sealed state in the running process, and the effect of protecting the display screen and the interior of the carriage in the running process is achieved.

Description

Protecting device for led display screen

Technical Field

The application relates to the technical field of LED screens, in particular to a protection device of an LED display screen.

Background

For propaganda, the trade company often can choose to install the LED display screen on the carriage and carry out advertising, and along with the removal of vehicle is seen by more lines people and driver, can play good propaganda effect, but find in the use that there are following problems:

the LED screen is arranged outside a carriage, lacks protection when not in use and is exposed outside, and the LED screen is easy to damage;

sometimes, only one side of the carriage is used for carrying out the led screen, sometimes, the best propaganda effect can be achieved only by carrying out the playback of the led screen on both sides of the carriage, and when the led screen is installed, only one scheme can be selected, so that the led screen cannot be adjusted temporarily;

in order to solve the above technical problems, a protection device for an led display screen is proposed.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the application provides the protection device for the LED display screen, which solves the technical problems that the LED screen is arranged outside a carriage, lacks protection when not in use, is exposed outside, is easy to damage, is used by only using one side of the carriage, can achieve the best propaganda effect only by playing the LED screen on two sides of the carriage, and can not be adjusted temporarily because only one scheme is selected when the LED screen is arranged.

(II) technical scheme

In order to achieve the above purpose, the application is realized by the following technical scheme:

the utility model provides a protector of led display screen, includes the carriage, and the front end in carriage is for the open end that is used for installing the door body, and this protector of led display screen still includes: a closing mechanism and a moving mechanism;

the sealing mechanism comprises two sealing plates, the moving mechanism comprises two moving frames, two display panels and two screws, and an LED display screen is fixedly arranged on the surface of the display panels, which is away from the carriage;

rectangular plate grooves are formed in the left inner wall and the right inner wall of the carriage, rectangular placing grooves are formed in the left outer wall and the right outer wall of the carriage, the plate grooves on the same groove wall are communicated with the placing grooves to form convex grooves, a pair of fixing blocks are fixedly connected to the front ends of the upper inner wall and the lower inner wall of the carriage, two fixing columns are fixedly connected to the front ends of the upper inner wall and the lower inner wall of the carriage, and two sliding grooves and two pairs of slots are formed in the front ends of the upper inner wall and the lower inner wall of the carriage;

four pairs of first positioning grooves are formed in the middle parts of the upper inner wall and the lower inner wall of the carriage, and two rear wall rods are fixedly connected with the rear wall of the carriage.

Preferably: the opposite surfaces of each pair of fixed blocks are fixedly connected with two pairs of wheel frames, the rear end of each wheel frame is fixedly connected with the inner rear wall of the carriage, and a sliding frame is arranged between two sliding grooves aligned up and down;

wherein, the equal fixedly connected with crossbearer of upper end of every fixed column, the equal fixedly connected with chassis of bottom of every fixed column all runs through on every chassis, and the both ends of every crossbearer all run through have same circular slot, have the interval between bottom surface in chassis and the carriage, and every back wall pole all runs through same circular slot.

Preferably: a transverse fixed rod is fixedly connected in each sliding groove, a first spring is movably sleeved on each fixed rod, a connecting seat is fixedly connected at the upper end and the lower end of each sliding frame, four connecting seats are movably sleeved with the four fixed rods respectively, and the first spring is positioned between the rear wall of the connecting seat and the rear wall of the sliding groove;

wherein, all fixedly connected with two rectangle seats on every balladeur train, the draw-in groove has all been seted up to every rectangle seat front surface, and the groove face has all run through the auxiliary tank behind every draw-in groove, and two pairs of second constant head tanks have all been seted up to the tank bottom of two board grooves.

Preferably: the four corners of the opposite surfaces of the two sealing plates are fixedly connected with short rods, the shape of a groove body formed by the sealing plates, the plate grooves and the placing grooves is the same, the middle parts of the opposite surfaces of the two sealing plates are provided with two vertical middle grooves, the front groove surface and the rear groove surface of each middle groove are provided with limit grooves, each middle groove is movably clamped with a rectangular movable seat, and each movable seat is fixedly connected with a push rod, two positioning rods and two sliding strips;

the sliding bar is movably clamped in the limiting grooves at the corresponding positions, the groove bottom of each middle groove is penetrated with two through grooves, the positioning rod is movably sleeved with the through groove at the corresponding position, and the ejector rod is movably sleeved on the groove top of the middle groove.

Preferably: a second spring is movably sleeved on each ejector rod, the second spring is positioned between the groove top of the middle groove and the movable seat, and a pull groove is formed in the middle part of each movable seat;

the lower end of the positioning rod is movably clamped with the positioning groove at the corresponding position, and the short rod is movably clamped with the round groove at the corresponding position.

Preferably: the rear ends of the upper surfaces of the two movable frames are fixedly provided with brackets with two pulleys, the wheels on the brackets are movably clamped in the wheel frames, the two movable frames are respectively movably clamped with two display panels, and each display panel is fixedly connected with four cross bars;

wherein, the display screen board is the same as the shape of the groove body formed by the board groove and the placing groove.

Preferably: the surface of each movable frame facing the carriage is fixedly connected with two mounting beams, two connecting sheets and two connecting frames, two blocking strips are fixedly connected between the two connecting sheets, the two connecting sheets are rotationally sleeved with a screw rod, long rods are fixedly connected to the two connecting frames, the rear end of each long rod is fixedly connected with a check ring, and two hole grooves are formed in each mounting beam;

wherein, two stock respectively with two auxiliary tank activity cup joints.

Preferably: four thread blocks are sleeved on the screw rod in a threaded manner, the thread directions of the two thread blocks at the front end are opposite, and the thread directions of the two thread blocks at the rear end are opposite;

the device comprises a front end, a rear end, a display screen board, two threaded blocks, a connecting piece, a rotating plate, a connecting piece, a same rotating plate and a same connecting piece, wherein the rotating plate is rotationally connected to the two threaded blocks at the front end, the connecting piece is rotationally connected to the two threaded blocks at the rear end, the same connecting piece is rotationally connected to the two rotating plates at the rear end, and the two connecting pieces are fixedly connected to the display screen board.

Preferably: the front ends of the opposite surfaces of the two sliding racks are fixedly connected with fixing plates, each fixing plate is movably sleeved with an inserting column, the upper end of each inserting column is fixedly connected with a pedal, and the middle part of each inserting column is fixedly sleeved with a baffle ring;

wherein, the baffle ring is located between fixed plate and the carriage bottom.

Preferably: a spring III is arranged between the fixed plate and the carriage, and two ends of the spring III are respectively and fixedly connected with the baffle ring and the fixed plate.

(III) beneficial effects

1. Carriage fixed mounting is on van's sweep, and the front end fixed mounting of carriage has the railway carriage or compartment door, and normal driving in-process, two closing plates respectively movable joint in the cell body that two integrated circuits are constituteed with the standing groove, and sealing treatment is all done to the contact surface of closing plate and cell body, like modes such as cover sealing gasket, rubber layer, and the locating lever inserts in the constant head tank on the cell body under the elasticity effect of spring two for the closing plate keeps the state of card in the cell body, makes the carriage in driving, and the carriage keeps airtight state, reaches the effect of protecting display screen and carriage inside in driving.

2. The face that the display screen board deviates from the carriage is fixed mounting has the LED display screen, when the vehicle needs to carry out display screen advertising, pull out moving mechanism earlier for the removal of closing plate is not influenced, holds the handle in the pull ring draw groove and moves the removal seat upward, make the locating lever break away from the constant head tank on the board groove, the closing plate loses the restriction of locating lever this moment, can shift out the cell body that board groove and standing groove are constituteed, remove the closing plate and make the quarter butt on the closing plate insert the circular slot in, then loosen the handle, under the elasticity of spring two, the locating lever inserts in the constant head tank of carriage bottom surface, reach the effect of fixing the closing plate position, the cell body that makes board groove and standing groove constitute is opened, and vacate the removal that the space carries out the display screen board, avoid the closing plate skew to collide the display screen board to cause the screen impaired in the display screen working process, the stability of equipment has been improved.

3. In the process of moving out the moving mechanism, the pulley on the support slides along the wheel carrier, when the movable frame removes to the front end, the retaining ring is blocked by the rectangular seat, the connecting seat removes to the front end, the inserted pin inserts in the slot that is located the front end, reach the effect of fixed carriage position, the clearance that the closing plate removed is satisfied at the interval between movable frame and the carriage back wall this moment, can carry out the removal of closing plate, and the movable frame receives the support of stock after moving out the carriage, cooperation support and the joint of wheel carrier can provide the four-point support, the movable frame can keep horizontal flat state roll-off roll-in carriage, stability and security have been improved.

4. After the sealing plate moves out the cell body, lift the footboard and make the spliced pole break away from the slot, push back and move the frame, make the display screen board in the moving frame align the cell body that board groove and standing groove are constituteed, utilize the carousel on the screw rod to rotate the screw rod, make the screw rod rotate and drive two screw thread pieces that are located the front end and be close to, be located two screw thread pieces of rear end and also be close to, thereby make the connection piece promote the display screen board break away from moving the frame card and go into the cell body that board groove and standing groove are constituteed, at this moment, after closing the railway carriage or compartment door, can utilize the display screen board to outwards carry out advertising in the carriage removal in-process, the carriage outward does not have the protrusion, do not influence the security, all operations and structures are accomplished in the carriage, it is comparatively safe and pleasing to the eye.

5. Need not display screen board during operation, display screen board is hidden in the carriage, and the seal plate seals the cell body that board groove and standing groove are constituteed for the carriage remains inclosed carriage throughout, has good protective effects to display screen board, when needs display screen board carry out advertising, adjusts conveniently, only needs four steps to accomplish the installation of display screen board.

6. The single-side display screen or the double-side display screen can be selected to be used according to the needs, and the single-side display screen can also automatically select which side to use, so that the applicability is high, and the use of the display screen on one side does not influence the normal positions of the display screen board and the sealing plate on the other side.

Drawings

The foregoing description is only an overview of the present application, and is intended to provide a better understanding of the present application, as it is embodied in the following description, with reference to the preferred embodiments of the present application and the accompanying drawings.

FIG. 1 is an overall block diagram of the present application;

FIG. 2 is a block diagram of a moving frame in accordance with the present application;

FIG. 3 is a block diagram of a car in the present application;

FIG. 4 is a block diagram of a fixing post according to the present application;

FIG. 5 is a structural view of a sealing plate according to the present application;

FIG. 6 is an enlarged block diagram of the present application at A in FIG. 3;

fig. 7 is an enlarged structural view of the present application at B in fig. 3.

Legend description: 1. a carriage; 2. a moving frame; 3. a sealing plate; 4. a placement groove; 5. a plate groove; 6. a carriage; 7. a clamping groove; 8. an auxiliary groove; 9. a rectangular seat; 10. a connecting seat; 11. a fixed block; 12. a wheel carrier; 13. fixing the column; 14. a first positioning groove; 15. a rear wall bar; 16. a slot; 17. a fixed rod; 18. a chute; 20. a third spring; 21. a fixing plate; 22. inserting a column; 23. a baffle ring; 24. a pedal; 25. a first spring; 26. a chassis; 27. a circular groove; 28. a cross frame; 29. a barrier strip; 30. a bracket; 31. a retainer ring; 33. a connecting sheet; 34. a connecting piece; 35. a screw; 36. a screw block; 37. a long rod; 38. mounting a beam; 39. a hole groove; 40. a connecting frame; 41. a cross bar; 42. a display panel; 43. a short bar; 44. a limit groove; 45. a middle groove; 46. a through groove; 47. a slide bar; 48. a positioning rod; 49. drawing a groove; 50. a movable seat; 51. a push rod; 52. a second spring; 53. and (5) rotating the plate.

Detailed Description

According to the embodiment of the application, the protection device of the LED display screen is provided, so that the technical problems that an LED screen is arranged outside a carriage, is lack of protection when not in use and is exposed outside the carriage, the LED screen is easy to damage, the LED screen is used only by using one side of the carriage, the best propaganda effect can be achieved only by playing the LED screen on two sides of the carriage, and a scheme can be selected only when the LED screen is arranged, so that temporary adjustment cannot be performed are solved.

Examples

The technical scheme in the embodiment of the application has the following overall thought:

as shown in fig. 1 to 7, in order to solve the problems existing in the prior art, the present application provides a protection device for an led display screen, including a carriage 1, wherein the front end of the carriage 1 is an open end for installing a door body, and the protection device for the led display screen further includes: the sealing mechanism comprises two sealing plates 3, the moving mechanism comprises two moving frames 2, two display panels 42 and two screws 35, rectangular plate grooves 5 are formed in the left and right inner walls of the carriage 1, rectangular placing grooves 4 are formed in the left and right outer walls of the carriage 1, the plate grooves 5 and the placing grooves 4 on the same groove wall are communicated to form convex grooves, the carriage 1 is fixedly arranged on a carriage plate of a van, a carriage door is fixedly arranged at the front end of the carriage 1, in the normal running process, the two sealing plates 3 are movably clamped in the groove bodies formed by the two plate grooves 5 and the placing grooves 4 respectively, the contact surfaces of the sealing plates 3 and the groove bodies are subjected to sealing treatment, such as a mode of covering a sealing gasket, a rubber layer and the like, the positioning rod 48 is inserted into a second positioning groove on the plate groove 5 under the action of the elastic force of the second spring 52, so that the sealing plate 3 is kept in a clamped state in the groove body, the carriage 1 is kept in a sealed state in the running process, the effect of protecting the display screen and the inside of the carriage 1 is achieved in the running process, the front ends of the upper inner wall and the lower inner wall of the carriage 1 are fixedly connected with a pair of fixing blocks 11, the front ends of the upper inner wall and the lower inner wall of the carriage 1 are fixedly connected with two fixing columns 13, the front ends of the upper inner wall and the lower inner wall of the carriage 1 are also provided with two sliding grooves 18 and two pairs of slots 16, the middle parts of the upper inner wall and the lower inner wall of the carriage 1 are provided with four pairs of first positioning grooves 14, and the rear wall of the carriage 1 is fixedly connected with two rear wall rods 15;

two pairs of wheel frames 12 are fixedly connected to opposite surfaces of each pair of fixed blocks 11, the rear end of each wheel frame 12 is fixedly connected to the inner rear wall of the carriage 1, a sliding frame 6 is arranged between two sliding grooves 18 aligned up and down, wherein a transverse frame 28 is fixedly connected to the upper end of each fixed column 13, a bottom frame 26 is fixedly connected to the bottom of each fixed column 13, round grooves 27 are penetrated through each bottom frame 26, the same round grooves 27 are penetrated through the two ends of each transverse frame 28, a space exists between the bottom frame 26 and the inner bottom surface of the carriage 1, the same round grooves 27 are penetrated through each rear wall rod 15, transverse fixed rods 17 are fixedly connected to each sliding groove 18, a first spring 25 is movably sleeved on each fixed rod 17, connecting seats 10 are fixedly connected to the upper end and the lower end of each sliding frame 6, four connecting seats 10 are movably sleeved with the four fixed rods 17 respectively, the first spring 25 is positioned between the rear wall of the connecting seat 10 and the rear wall of the sliding groove 18, wherein each sliding frame 6 is fixedly connected with two rectangular seats 9, the front surface of each rectangular seat 9 is provided with a clamping groove 7, the rear groove surface of each clamping groove 7 is penetrated with an auxiliary groove 8, the groove bottoms of the two plate grooves 5 are provided with two pairs of second positioning grooves, the surface of the display screen 42, which faces away from the carriage 1, is fixedly provided with an LED display screen, when the vehicle needs to advertise the display screen, the moving mechanism is pulled out firstly, so that the movement of the sealing plate 3 is not influenced, the handle in the pull ring pull groove 49 is held to move up the moving seat 50, so that the positioning rod 48 is separated from the second positioning groove on the plate groove 5, at the moment, the sealing plate 3 loses the limit of the positioning rod 48, the groove body formed by the plate groove 5 and the placing groove 4 can be moved out, the short rod 43 on the sealing plate 3 is inserted into the circular groove 27, then the handle is released under the elasticity of the second spring 52, the positioning rod 48 is inserted into the first positioning groove 14 on the bottom surface of the carriage 1 to achieve the effect of fixing the position of the sealing plate 3, so that a groove body formed by the plate groove 5 and the placing groove 4 is opened, space is reserved for moving the display screen 42, the screen damage caused by the fact that the sealing plate 3 is deviated and collides with the display screen 42 in the working process of the display screen 42 is avoided, and the stability of equipment is improved;

in the process of moving out the moving mechanism, the pulley on the bracket 30 slides along the wheel frame 12, when the moving frame 2 moves to the forefront end, the retainer ring 31 is clamped by the rectangular seat 9, the connecting seat 10 moves to the forefront end, the inserting column 22 is inserted into the inserting groove 16 positioned at the front end to achieve the effect of fixing the position of the carriage 6, at the moment, the distance between the moving frame 2 and the rear wall of the carriage 1 meets the moving gap of the sealing plate 3, the moving of the sealing plate 3 can be carried out, the moving frame 2 is supported by the long rod 37 after moving out of the carriage 1, the bracket 30 is matched with the clamping of the wheel frame 12, four-point support can be provided, the moving frame 2 can keep a horizontal state and slide out of the carriage 1, the stability and the safety are improved, the four corners of the two opposite faces of the sealing plate 3 are fixedly connected with the short rods 43, the sealing plate 3 is identical with the groove body formed by the plate groove 5 and the placing groove 4, two vertical middle grooves 45 are formed in the middle parts of opposite surfaces of the two sealing plates 3, limit grooves 44 are formed in the front groove surface and the rear groove surface of each middle groove 45, rectangular movable seats 50 are movably clamped in each middle groove 45, push rods 51, two positioning rods 48 and two sliding strips 47 are fixedly connected to each movable seat 50, the sliding strips 47 are movably clamped in the limit grooves 44 at corresponding positions, two through grooves 46 penetrate through the groove bottoms of each middle groove 45, the positioning rods 48 are movably sleeved with the through grooves 46 at corresponding positions, the push rods 51 are movably sleeved on the groove tops of the middle grooves 45, springs II 52 are movably sleeved on the push rods 51, the springs II 52 are positioned between the groove tops of the middle grooves 45 and the movable seats 50, pull grooves 49 are formed in the middle parts of the movable seats 50, the lower ends of the positioning rods 48 are movably clamped with the positioning grooves at corresponding positions, the short rods 43 are movably clamped with the round grooves 27 at corresponding positions, after the sealing plate 3 moves out of the groove body, the pedal 24 is lifted up to enable the inserting column 22 to be separated from the slot 16, the movable frame 2 is pushed back, the display screen 42 in the movable frame 2 is aligned with the groove body formed by the plate groove 5 and the placing groove 4, the screw 35 is rotated by utilizing the rotary disc on the screw 35, the screw 35 rotates to drive the two threaded blocks 36 positioned at the front end to be close, the two threaded blocks 36 positioned at the rear end are also close, the connecting sheet 33 pushes the display screen 42 to be separated from the movable frame 2 and clamped into the groove body formed by the plate groove 5 and the placing groove 4, at the moment, after the carriage door is closed, the display screen 42 can be utilized to advertise outwards in the moving process of the carriage 1, the appearance of the carriage 1 is not bulged, the safety is not influenced, and all operations and structures are finished in the carriage 1, so that the carriage is safer and attractive;

when the display screen 42 is not required to work, the display screen 42 is hidden in the carriage 1, the sealing plate 3 seals the groove body formed by the board groove 5 and the placing groove 4, so that the carriage 1 always keeps a sealed carriage body, the display screen 42 has good protection effect, when the display screen 42 is required to be advertised, the adjustment is convenient, the installation of the display screen 42 can be completed only by four steps, the rear ends of the upper surfaces of the two movable frames 2 are fixedly provided with the brackets 30 with two pulleys, the wheels on the brackets 30 are movably clamped in the wheel frame 12, the two movable frames 2 are respectively movably clamped with the two display screen 42, four cross bars 41 are fixedly connected to each display screen 42, the groove body formed by the board groove 5 and the placing groove 4 is identical, the surface of each movable frame 2 facing the carriage 1 is fixedly connected with the two mounting beams 38, the two connecting pieces 33 and the two connecting frames 40, the two baffle bars 29 are fixedly connected between the two connecting pieces 33, the two connecting pieces 33 and the screw rod 35 are rotationally sleeved, the two connecting frames 40 are fixedly connected with long rods 37, the rear end of each long rod 37 is fixedly connected with a retainer ring 31, each mounting beam 38 is provided with two hole grooves 39, the two long rods 37 are movably sleeved with the two auxiliary grooves 8 respectively, the screw rod 35 is threaded with four threaded blocks 36, the threaded directions of the threaded blocks 36 at the front end are opposite, the threaded directions of the threaded blocks 36 at the rear end are opposite, the threaded blocks 36 at the front end are rotationally connected with rotating plates 53, a connecting piece 34 is rotationally connected between the two rotating plates 53 at the front end, the two threaded blocks 36 at the rear end are rotationally connected with the same rotating plates 53, the two rotating plates 53 at the rear end are rotationally connected with the same connecting piece 34, both connectors 34 are fixedly attached to the display panel 42;

can use or two side display screen use simultaneously as required, and the unilateral display screen also can select which one side to use by oneself, and the suitability is high, and the display screen use of one side does not influence the normal position of opposite side display screen board 42 and closing plate 3, and the front end that two balladeur train 6 deviate from the face mutually is equal fixedly connected with fixed plate 21, has all movably cup jointed spliced pole 22 on every fixed plate 21, and the equal fixedly connected with footboard 24 of every spliced pole 22 upper end, the fixed baffle ring 23 that has cup jointed of mid portion of every spliced pole 22, baffle ring 23 are located between fixed plate 21 and the carriage 1 bottom. A third spring 20 is arranged between the fixed plate 21 and the carriage 1, and two ends of the third spring 20 are fixedly connected with the baffle ring 23 and the fixed plate 21 respectively.

Working principle: when the device is used, the carriage 1 is fixedly arranged on a carriage plate of a van, a carriage door is fixedly arranged at the front end of the carriage 1, in the normal running process, two sealing plates 3 are movably clamped in a groove body formed by two plate grooves 5 and a placing groove 4 respectively, the contact surfaces of the sealing plates 3 and the groove body are subjected to sealing treatment, such as a mode of covering a sealing gasket, a rubber layer and the like, and a positioning rod 48 is inserted into a second positioning groove on the plate groove 5 under the action of the elastic force of a second spring 52, so that the sealing plates 3 are kept clamped in the groove body, the carriage 1 is kept in a closed state in the running process, and the effect of protecting a display screen and the interior of the carriage 1 in the running process is achieved;

when the vehicle needs to advertise the display screen, the LED display screen is fixedly arranged on the surface of the display screen 42, which faces away from the carriage 1, the moving mechanism is pulled out firstly, so that the movement of the sealing plate 3 is not affected, the handle in the pull ring pull groove 49 is held by hand to move the moving seat 50 upwards, so that the locating rod 48 is separated from the second locating groove on the plate groove 5, at the moment, the sealing plate 3 loses the limit of the locating rod 48, can be moved out of the groove body formed by the plate groove 5 and the placing groove 4, the sealing plate 3 is moved so that the short rod 43 on the sealing plate 3 is inserted into the circular groove 27, then the handle is released, under the elasticity of the spring II 52, the locating rod 48 is inserted into the first locating groove 14 on the bottom surface of the carriage 1, the effect of fixing the position of the sealing plate 3 is achieved, the groove body formed by the plate groove 5 and the placing groove 4 is opened, and the space is vacated for moving the display screen 42, the screen is prevented from being damaged due to the offset collision of the sealing plate 3 on the display screen 42 in the working process, the stability of the equipment is improved, the pulley on the bracket 30 slides along the wheel frame 12 in the process of moving out the moving mechanism, when the moving frame 2 moves to the forefront end, the retainer ring 31 is blocked by the rectangular seat 9, the connecting seat 10 moves to the forefront end, the inserted post 22 is inserted into the slot 16 positioned at the front end, the effect of fixing the position of the carriage 6 is achieved, at the moment, the space between the moving frame 2 and the rear wall of the carriage 1 meets the moving gap of the sealing plate 3, the moving of the sealing plate 3 can be carried out, the moving frame 2 is supported by the long rod 37 after moving out of the carriage 1, the bracket 30 is matched with the wheel frame 12 in a clamped manner, the moving frame 2 can slide out of the carriage 1 in a transversely flat state, the stability and the safety are improved, after the sealing plate 3 moves out of the slot body, the pedal 24 is lifted up to enable the inserted post 22 to be separated from the slot 16, the movable frame 2 is pushed back, the display screen 42 in the movable frame 2 is aligned with the groove body formed by the board groove 5 and the placing groove 4, the rotary table on the screw 35 is utilized to rotate the screw 35, the screw 35 rotates to drive the two threaded blocks 36 at the front end to approach, the two threaded blocks 36 at the rear end are also close, thereby the connecting sheet 33 pushes the display screen 42 to be separated from the movable frame 2 and clamped into the groove body formed by the board groove 5 and the placing groove 4, at the moment, after the carriage door is closed, the display screen 42 can be utilized to advertise in the carriage 1 in the moving process, the appearance of the carriage 1 is free from protruding, the safety is not affected, all operations and structures are completed in the carriage 1, the carriage is safe and attractive, the display screen 42 is not required to be hidden in the carriage 1 during the working process, the sealing plate 3 seals the groove body formed by the board groove 5 and the placing groove 4, the carriage 1 always keeps the sealed carriage body, the display screen 42 has good protection effect, and is convenient to adjust when the display screen 42 is required to advertise, the carriage needs to be installed in four steps, the carriage can be installed, and the side can be used on one side or the other side of the carriage needs to use the sealing plate 3, and the other side can be used by the side of the carriage needs to be free from the side, and the sealing plate 3 can be used, and the side can be normally or the side used.

Finally, it should be noted that: it is apparent that the above examples are only illustrative of the present application and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present application.

Claims (5)

1. The utility model provides a protector of led display screen, includes carriage (1), and the front end of carriage (1) is for the open end that is used for installing the door body, its characterized in that, this protector of led display screen still includes: a closing mechanism and a moving mechanism;

the sealing mechanism comprises two sealing plates (3), the moving mechanism comprises two moving frames (2), two display screen boards (42) and two screws (35), and an LED display screen is fixedly arranged on the surface, away from the carriage (1), of the display screen boards (42);

rectangular plate grooves (5) are formed in the left and right inner walls of the carriage (1), rectangular placing grooves (4) are formed in the left and right outer walls of the carriage (1), the plate grooves (5) on the same groove wall are communicated with the placing grooves (4) to form convex grooves, a pair of fixing blocks (11) are fixedly connected to the front ends of the upper and lower inner walls of the carriage (1), two fixing columns (13) are fixedly connected to the front ends of the upper and lower inner walls of the carriage (1), and two sliding grooves (18) and two pairs of slots (16) are formed in the front ends of the upper and lower inner walls of the carriage (1);

four pairs of first positioning grooves (14) are formed in the middle parts of the upper inner wall and the lower inner wall of the carriage (1), and two rear wall rods (15) are fixedly connected with the rear wall of the carriage (1);

the opposite surfaces of each pair of fixed blocks (11) are fixedly connected with two pairs of wheel frames (12), the rear end of each wheel frame (12) is fixedly connected with the inner rear wall of a carriage (1), a sliding frame (6) is arranged between two sliding grooves (18) aligned up and down, the upper end of each fixed column (13) is fixedly connected with a transverse frame (28), the bottom of each fixed column (13) is fixedly connected with a bottom frame (26), round grooves (27) are formed in each bottom frame (26) in a penetrating manner, the same round grooves (27) are formed in the two ends of each transverse frame (28) in a penetrating manner, a distance is reserved between the bottom frame (26) and the inner bottom surface of the carriage (1), and each rear wall rod (15) is provided with the same round groove (27) in a penetrating manner;

the four corners of the opposite surfaces of the two sealing plates (3) are fixedly connected with short rods (43), the shapes of grooves formed by the sealing plates (3), the plate grooves (5) and the placing grooves (4) are the same, two vertical middle grooves (45) are formed in the middle parts of the opposite surfaces of the two sealing plates (3), limit grooves (44) are formed in the front groove surface and the rear groove surface of each middle groove (45), rectangular movable seats (50) are movably clamped in each middle groove (45), ejector rods (51), two positioning rods (48) and two sliding strips (47) are fixedly connected to each movable seat (50), the sliding strips (47) are movably clamped in the limit grooves (44) at corresponding positions, the bottoms of the corresponding middle grooves (45) are respectively penetrated by two through grooves (46), the positioning rods (48) are movably sleeved with the through grooves (46) at the corresponding positions, and the ejector rods (51) are movably sleeved on the groove tops of the middle grooves (45);

two rectangular bases (9) are fixedly connected to each sliding frame (6), clamping grooves (7) are formed in the front surface of each rectangular base (9), auxiliary grooves (8) are formed in the rear groove surfaces of each clamping groove (7) in a penetrating mode, two pairs of second positioning grooves are formed in the groove bottoms of the two plate grooves (5), supports (30) with two pulleys are fixedly mounted at the rear ends of the upper surfaces of the two moving frames (2), wheels on the supports (30) are movably clamped in wheel frames (12), the two moving frames (2) are movably clamped with two display screen plates (42) respectively, four cross rods (41) are fixedly connected to each display screen plate (42), the shapes of grooves formed by the display screen plates (42), the plate grooves (5) and the placing grooves (4) are identical, two mounting beams (38), two connecting pieces (33) and two connecting frames (40) are fixedly connected to the faces in the carriage (1), two connecting pieces (33) are fixedly connected with two mounting beams (29), retaining rings (37) are formed in the two connecting frames (37) in a sleeved mode, retaining rings (37) are fixedly connected to each connecting rod (37), wherein, the two long rods (37) are respectively movably sleeved with the two auxiliary grooves (8);

four thread blocks (36) are sleeved on the screw rod (35) in a threaded mode, the thread directions of the two thread blocks (36) at the front end are opposite, the thread directions of the two thread blocks (36) at the rear end are opposite, rotating plates (53) are connected to the two thread blocks (36) at the front end in a rotating mode, connecting pieces (34) are connected to the two rotating plates (53) at the front end in a rotating mode, identical rotating plates (53) are connected to the two thread blocks (36) at the rear end in a rotating mode, identical connecting pieces (34) are connected to the two rotating plates (53) at the rear end in a rotating mode, and the two connecting pieces (34) are fixedly connected to the display screen plate (42).

2. The led display protection device of claim 1, wherein: every all fixedly connected with transverse dead lever (17) in spout (18), all movable sleeve has connected spring one (25) on every dead lever (17), and the equal fixedly connected with connecting seat (10) of upper and lower extreme of every balladeur train (6), four connecting seats (10) are respectively with four dead lever (17) activity sleeve, and spring one (25) are located between connecting seat (10) back wall and spout (18) back wall.

3. The led display protection device of claim 2, wherein: a second spring (52) is movably sleeved on each ejector rod (51), the second spring (52) is positioned between the groove top of the middle groove (45) and the movable seat (50), and a pull groove (49) is formed in the middle part of each movable seat (50);

the lower end of the positioning rod (48) is movably clamped with the positioning groove at the corresponding position, and the short rod (43) is movably clamped with the round groove (27) at the corresponding position.

4. A led display protection device as set forth in claim 3, wherein: the front ends of the opposite surfaces of the two sliding frames (6) are fixedly connected with fixed plates (21), each fixed plate (21) is movably sleeved with an inserting column (22), the upper end of each inserting column (22) is fixedly connected with a pedal (24), and the middle part of each inserting column (22) is fixedly sleeved with a baffle ring (23);

wherein, the baffle ring (23) is positioned between the fixed plate (21) and the bottom of the carriage (1).

5. The led display protection device of claim 4, wherein: a spring III (20) is arranged between the fixed plate (21) and the carriage (1), and two ends of the spring III (20) are respectively fixedly connected with the baffle ring (23) and the fixed plate (21).