CN211653385U

CN211653385U - Anti-glare screen of rear projection large screen display unit

Info

Publication number: CN211653385U
Application number: CN202020674328.2U
Authority: CN
Inventors: 许亭和
Original assignee: Nanjing Merlot Television Technology Co ltd
Current assignee: Nanjing Merlot Television Technology Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-10-09
Anticipated expiration: 2030-04-30

Abstract

The utility model belongs to the technical field of display screens, in particular to a back-projection large-screen display unit anti-glare screen, which aims at the problem that the existing display screen is not easy to clean and provides a proposal that comprises a bracket, a screen frame is fixedly arranged on one side of the bracket, a mounting groove is arranged in the screen frame, the display screen is fixedly arranged in the mounting groove, a fixed plate is fixedly arranged on the top of the screen frame, a long cavity is arranged in the fixed plate, a first small hole is arranged on the inner wall of the bottom of the long cavity, a cavity is arranged in the fixed plate, and a second small hole is arranged on the inner wall of one side of the cavity close to the long cavity, thus solving the defect that the dust accumulated on the screen is difficult to clean in the prior art, leading people to easily and thoroughly clean the dust on the display screen without adopting the manual cleaning mode of high-altitude operation, the requirements of people are met.

Description

Anti-glare screen of rear projection large screen display unit

Technical Field

The utility model relates to a display screen technical field especially relates to rear-projection large screen display unit anti-dazzle screen.

Background

Rear projection refers to a projection device that is placed behind a screen and projected directly toward a viewer. The screen controls the path of the light and projects a bright, clear image to a predetermined viewing area. Furthermore, the presenter and audience station leaves no shadows in front of the image. In addition, the projection instrument is hidden at the back of the screen, so that the viewing range is kept quiet, neat and clear.

Patent application No. CN201020545549.6 discloses an anti-glare screen of a rear projection large screen display unit, which comprises a screen frame, a lining plate, a display screen and anti-glare glass, wherein: the lining plate is fixed in the clamping groove of the curtain frame; the display screen and the anti-dazzle glass are sequentially fixed in front of the lining plate through the curtain frame. The utility model discloses gain height, visual angle are big, the contrast is high, the homogeneity is good, do not have ageing phenomenon, the surface does not have the reflection of light, the antidetonation is strong, the roughness is good, be convenient for wash, need not the pad pasting, have overcome the solar effect phenomenon of current rear-projection large screen display unit screen, more are suitable for extensive using widely.

However, the anti-glare screen of the rear projection large screen display unit related to the patent is easy to accumulate dust, and the accumulated dust is not easy to clean due to the height of the screen, and no special cleaning equipment is used for cleaning the screen.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the dust accumulated on the screen is difficult to clean in the prior art, and providing an anti-dazzle screen of a rear projection large screen display unit.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the anti-glare screen of the rear-projection large-screen display unit comprises a support, wherein a screen frame is fixedly installed on one side of the support, a mounting groove is formed in the screen frame, a display screen is fixedly installed in the mounting groove, a fixing plate is fixedly installed at the top of the screen frame, a long cavity is formed in the fixing plate, a first small hole is formed in the inner wall of the bottom of the long cavity, a cavity is formed in the fixing plate, a second small hole is formed in the inner wall of one side, close to the long cavity, of the cavity, the second small hole is communicated with the long cavity, one end, far away from the cavity, of the long cavity is rotatably installed on the inner wall of one side of the long cavity, the other end of the rotating rod penetrates through the second small hole and extends into the cavity, a cloth enclosing roll is fixedly sleeved on the rotating rod, one end of the cloth roll penetrates through the first small hole and, the dwang has been cup jointed the gear, and the gear is located the spacing inslot, the third aperture has been seted up on the inner wall of spacing tank bottom portion, the one end of chain has been cup jointed on the gear, and the other end of chain runs through the third aperture to outside extending to the fixed plate, chain and spacing groove looks adaptation, movable mounting has the horizontal pole on the chain, and has seted up the square hole on the horizontal pole, fixed mounting has the one end of T type pole on the chain, and the other end of T type pole runs through the square hole, and extends to outside the horizontal pole, the curtain frame has been close to one side of chain and has been seted up the slot, and slot and horizontal pole looks adaptation.

Preferably, enclose the cloth book and extend to the outer one end fixed mounting of fixed plate and have the diaphragm brush, and diaphragm brush and display screen looks adaptation.

Preferably, the two sides of the curtain frame are respectively provided with a load bearing block in a sliding manner, and one sides of the two load bearing blocks, which are close to each other, are respectively fixedly arranged on the transverse plate hairbrush.

Preferably, the both sides of curtain frame have all been seted up the spout along vertical direction, and slidable mounting has one side of slider in the spout, and the opposite side fixed mounting of slider is on the negative weight piece.

Preferably, one end of a spring is fixedly connected to the inner wall of one side of the square hole, and the other end of the spring is fixedly connected to the T-shaped rod.

In the utility model, the anti-glare screen of the rear projection large screen display unit drives the gear to rotate by the forward and backward pulling of the chain, and then the gear drives the rotating rod to rotate, at the moment, the enclosing cloth roll on the rotating rod is in a state of shrinking or lowering under the pulling of the negative weight block, and then the transverse plate brush is driven to clean dust on the display screen back and forth, after the cleaning is finished, the chain is pulled to reset the transverse plate brush, and then the transverse rod is inserted into the slot;

the utility model provides an among the prior art have the dust that gathers on the screen to be difficult to carry out the shortcoming of clearance for people can thoroughly clear up the dust on the display screen easily, need not adopt high altitude construction's artifical clearance mode, have satisfied people's demand.

Drawings

Fig. 1 is a schematic side view of an anti-glare screen of a rear projection large screen display unit according to the present invention;

fig. 2 is a schematic structural diagram of a part a of an anti-glare screen of a rear projection large-screen display unit according to the present invention;

fig. 3 is a schematic front view of an anti-glare screen of a rear projection large-screen display unit according to the present invention;

fig. 4 is a schematic structural diagram of a part B of an anti-glare screen of a rear-projection large-screen display unit according to the present invention;

fig. 5 is a schematic structural diagram of part C of an anti-glare screen of a rear projection large-screen display unit according to the present invention.

In the figure: the curtain comprises a support 1, a curtain frame 2, a mounting groove 3, a display screen 4, a fixing plate 5, a long cavity 6, a first small hole 7, a cavity 8, a second small hole 9, a rotating rod 10, a cloth enclosing roll 11, a limiting groove 12, a gear 13, a third small hole 14, a chain 15, a transverse plate brush 16, a negative weight block 17, a sliding groove 18, a sliding block 19, a slot 20, a transverse rod 21, a square hole 22, a T-shaped rod 23 and a spring 24.

Detailed Description

In the technical scheme:

(5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 20, 21, 22, 23) are essential innovative components of the present invention.

(1, 2, 3, 4, 15, 18, 19, 24) is the necessary connecting component for realizing the technical scheme of the utility model.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-5, the anti-glare screen of a rear-projection large-screen display unit comprises a support 1, a screen frame 2 is fixedly installed on one side of the support 1, a mounting groove 3 is formed in the screen frame 2, a display screen 4 is fixedly installed in the mounting groove 3, a fixing plate 5 is fixedly installed on the top of the screen frame 2, a long cavity 6 is formed in the fixing plate 5, a first small hole 7 is formed in the inner wall of the bottom of the long cavity 6, a cavity 8 is formed in the fixing plate 5, a second small hole 9 is formed in the inner wall of the cavity 8 close to one side of the long cavity 6, the second small hole 9 is communicated with the long cavity 6, one end of a rotating rod 10 is rotatably installed on the inner wall of the long cavity 6 far from one side of the cavity 8, the other end of the rotating rod 10 penetrates through the second small hole 9 and extends into the cavity 8, a cloth roll 11 is fixedly sleeved on the rotating, and extend to outside fixed plate 5, spacing groove 12 has been seted up to the annular on the inner wall of cavity 8, gear 13 has been cup jointed on dwang 10, and gear 13 is located spacing groove 12, third aperture 14 has been seted up on the inner wall of spacing groove 12 bottom, the one end of chain 15 has been cup jointed on gear 13, and the other end of chain 15 runs through third aperture 14, and extend to outside fixed plate 5, chain 15 and spacing groove 12 looks adaptation, movable mounting has horizontal pole 21 on chain 15, and seted up square hole 22 on horizontal pole 21, fixed mounting has the one end of T type pole 23 on chain 15, and the other end of T type pole 23 runs through square hole 22, and extend to outside horizontal pole 21, slot 20 has been seted up to one side that curtain frame 2 is close to chain 15, and slot 20 and horizontal pole 21 looks adaptation.

The utility model discloses in, enclose fabric roll 11 and extend to the outer one end fixed mounting of fixed plate 5 and have diaphragm brush 16, and diaphragm brush 16 and display screen 4 looks adaptation.

The utility model discloses in, the equal slidable mounting in both sides of curtain frame 2 has negative weight 17, and the equal fixed mounting in one side that two negative weight 17 are close to each other is on diaphragm brush 16, accelerates diaphragm brush 16's falling speed through negative weight 17.

The utility model discloses in, spout 18 has all been seted up along vertical direction in the both sides of curtain frame 2, and sliding mounting has one side of slider 19 in spout 18, and slider 19's opposite side fixed mounting is on negative weight 17, and spout 18 and slider 19 are for making diaphragm brush 16 can clear up display screen 4 better.

The utility model discloses in, fixedly connected with spring 24's one end on the inner wall of square hole 22 one side, and spring 24's other end fixed connection is on T type pole 23, and spring 24's connected mode is for making horizontal pole 21 automatic re-setting.

Example two

The utility model discloses in, the equal slidable mounting in both sides of curtain frame 2 has negative weight 17, and the one side that two negative weight 17 are close to each other all through screw fixed mounting on diaphragm brush 16.

The utility model discloses in, spout 18 has all been seted up along vertical direction in the both sides of curtain frame 2, and sliding mounting has one side of slider 19 in spout 18, and the fixed welding of opposite side of slider 19 is on burden weight 17.

The utility model discloses in, fixed welding has the one end of spring 24 on the inner wall of square hole 22 one side, and the fixed even welding of the other end of spring 24 is on T type pole 23.

The utility model discloses in, it is rotatory to drive gear 13 through positive and negative pulling chain 15, and then gear 13 will drive dwang 10 and rotate, and the state that the yardage roll 11 on the dwang 10 will be in the shrink or transfer under the pulling of heavy burden piece 17 this moment, and then will take diaphragm brush 16 to carry out the clearance of making a round trip to the dust on display screen 4, and the clearance finishes the back pulling chain 15 and makes diaphragm brush 16 reset, then with horizontal pole 21 insert in slot 20 can.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A rear-projection large-screen display unit anti-glare screen comprises a support (1) and is characterized in that a screen frame (2) is fixedly installed on one side of the support (1), a mounting groove (3) is formed in the screen frame (2), a display screen (4) is fixedly installed in the mounting groove (3), a fixing plate (5) is fixedly installed at the top of the screen frame (2), a long cavity (6) is formed in the fixing plate (5), a first small hole (7) is formed in the inner wall of the bottom of the long cavity (6), a cavity (8) is formed in the fixing plate (5), a second small hole (9) is formed in the inner wall, close to one side of the long cavity (6), of the cavity (8), the second small hole (9) is communicated with the long cavity (6), and a rotating rod (10) is rotatably installed on the inner wall, far away from one side of the cavity (8), of the long cavity (, and the other end of dwang (10) runs through second aperture (9) to extend to in cavity (8), fixed cover has been gone up in dwang (10) and has been connect and enclose yardage roll (11), and the one end that encloses yardage roll (11) runs through first aperture (7), and extend to outside fixed plate (5), spacing groove (12) have been seted up to the annular on the inner wall of cavity (8), gear (13) have been cup jointed on dwang (10), and gear (13) are located spacing groove (12), third aperture (14) have been seted up on the inner wall of spacing groove (12) bottom, the one end of chain (15) has been cup jointed on gear (13), and the other end of chain (15) runs through third aperture (14), and extend to outside fixed plate (5), chain (15) and spacing groove (12) looks adaptation, movable mounting has horizontal pole (21) on chain (15), and square hole (22) have been seted up on horizontal pole (21), fixed mounting has the one end of T type pole (23) on chain (15), and the other end of T type pole (23) runs through square hole (22) to outside extending to horizontal pole (21), slot (20) have been seted up to one side that curtain frame (2) are close to chain (15), and slot (20) and horizontal pole (21) looks adaptation.

2. The anti-glare screen of the rear-projection large-screen display unit as claimed in claim 1, wherein a horizontal plate brush (16) is fixedly mounted at one end of the cloth roll (11) extending out of the fixing plate (5), and the horizontal plate brush (16) is adapted to the display screen (4).

3. The rear-projection large-screen display unit anti-glare screen according to claim 1, wherein the two sides of the screen frame (2) are both slidably provided with negative weights (17), and the sides of the two negative weights (17) close to each other are both fixedly arranged on the horizontal plate brush (16).

4. The anti-glare screen of the rear-projection large-screen display unit according to claim 1, wherein sliding grooves (18) are formed in both sides of the screen frame (2) in the vertical direction, one side of the sliding block (19) is slidably mounted in the sliding grooves (18), and the other side of the sliding block (19) is fixedly mounted on the negative weight block (17).

5. The rear-projection large-screen display unit anti-glare screen according to claim 1, wherein one end of the spring (24) is fixedly connected to an inner wall of one side of the square hole (22), and the other end of the spring (24) is fixedly connected to the T-shaped rod (23).