CN209707903U - A kind of wire lifting projection screen - Google Patents

Abstract

A kind of wire of the utility model goes up and down projection screen, belongs to projection device technical field.Including pedestal, bracket and upper cover, pedestal is equipped with base groove, pedestal pulley is equipped in base groove, bracket includes pillar one and pillar two, upper lid is equipped with upper cover groove, upper cover pulley is equipped in upper cover groove, pillar one and the horizontal cross section of pillar two are spill, the upper end of pillar one and pillar two pulls and pushes with upper cover groove and connect, the lower end of pillar one and pillar two is pulled and pushed with base groove to be connect, pedestal driving motor is additionally provided on pedestal, the pedestal driving motor is connect by pedestal drive shaft with pedestal pulley, upper lid is equipped with upper cover driving motor, the upper cover driving motor is connect by upper cover drive shaft with upper cover pulley, curtain is driven simultaneously by pedestal pulley and upper cover pulley, curtain is uniformly gone up and down.

Description

A kind of wire lifting projection screen

Technical field

The utility model belongs to projection device technical field, and specifically a kind of wire goes up and down projection screen.

Background technique

Projection screen is used in the occasions such as film, office, home theater, convention, for showing image, video The tool of file.Divide a variety of specifications.The selection of different space projection curtains is also different, for example ornamental number is more Or the occasion laterally watched preferably selects the screen of wide viewing angle, low gain, long and narrow space watches the screen to select narrow viewing angle, high-gain Curtain, while the screen for having appropriate gain is selected, the contrast of screen is helped to improve, image grayscale is made to increase, is in bright gay color, is increased Add the ornamental of image.Outdoors or when indoor carry out large size performance, need to carry out by large-scale projection screen video or Person's picture showing, but large-scale projection screen needs to consider during lifting stage effect and lifting in lifting process Stability, so a kind of wire lifting projection screen is needed to carry out meet demand.

Through retrieving, invention and created name automatic lifting combination curtain (application No. is: 201310051681.X, the applying date are as follows: 2013.02.17), this application discloses a kind of automatic rising-lowering combined act curtain for large-scale performance in an open deck.The open deck is large-scale It performs automatic lifting and combines curtain, several including being staggered front to back arrangement fill the multistage cylinder of wind lifting, pacify on multistage cylinder Equipped with combination curtain folding, multistage cylinder is connected with air pressure by branch vent and ventilation supervisor's connection, ventilation supervisor end Contracting machine, ventilation are responsible for and are equipped with curtain elevating control platform.This application structure is simple, easy to use, and design is reasonable, using spirit It is living, performance curtain is formed by way of combination.But this application is disadvantageous in that during lifting and is difficult to protect Demonstrate,prove the stability of curtain.

Utility model content

1. utility model technical problems to be solved

Utility model aims to solve existing curtains to be difficult to keep that curtain is stable to ask during lifting Topic provides a kind of wire lifting projection screen to solve this problem.

2. technical solution

In order to achieve the above objectives, technical solution provided by the utility model are as follows:

A kind of wire of the utility model goes up and down projection screen, including pedestal, bracket and upper cover, and the pedestal is equipped with bottom Seat groove, the base groove is interior to be equipped with pedestal pulley, and the bracket includes pillar one and pillar two, and the upper lid is equipped with upper Lid groove, the upper cover groove is interior to be equipped with upper cover pulley, and the pillar one and the horizontal cross section of pillar two are spill, the pillar One and the upper end of pillar two pull and push and connect with upper cover groove, the lower end of the pillar one and pillar two and base groove pull and push company It connects, pedestal driving motor is additionally provided on the pedestal, which is connect by pedestal drive shaft with pedestal pulley, institute Lid is stated equipped with upper cover driving motor, which is connect by upper cover drive shaft with upper cover pulley.

Preferably, the middle section of the pillar one is equipped with pulley one, and the middle section of the pillar two is equipped with pulley two.

Preferably, the upper cover includes mounting layer, buffer layer and shell, and the upper cover groove is set in mounting layer, institute State the cavity for being equipped between mounting layer and buffer layer and curtain being allowed to pass through.

Preferably, damping spring is equipped in the buffer layer, the bottom of the damping spring is fixed with pressing plate, the shell It is set to the upper end of buffer layer.

Preferably, the length of the pressing plate is less than upper cover length, and the pressing plate is in cavity along the stress side of damping spring To movement.

Preferably, the pedestal driving motor in the upper cover driving motor and pedestal in the upper cover is staggered, and different When be set on same vertical line.

3. beneficial effect

Using technical solution provided by the utility model, compared with prior art, have the following beneficial effects:

A kind of wire of the utility model goes up and down projection screen, including pedestal, bracket and upper cover, and it is recessed that pedestal is equipped with pedestal Slot, base groove is interior to be equipped with pedestal pulley, and bracket includes pillar one and pillar two, and upper lid is equipped with upper cover groove, upper cover groove Interior to be equipped with upper cover pulley, pillar one and the horizontal cross section of pillar two are spill, the upper end and upper cover groove of pillar one and pillar two Pull and push connection, the lower end of pillar one and pillar two is pulled and pushed with base groove to be connect, and pedestal driving motor is additionally provided on pedestal, the bottom Seat driving motor is connect by pedestal drive shaft with pedestal pulley, and upper lid is equipped with upper cover driving motor, the upper cover driving motor It is connect, curtain is driven simultaneously by pedestal pulley and upper cover pulley, so that curtain with upper cover pulley by upper cover drive shaft Cloth can uniformly be gone up and down, and upper cover includes mounting layer, buffer layer and shell, and upper cover groove is set in mounting layer, installation It is equipped with the cavity for allowing curtain to pass through between layer and buffer layer, is equipped with damping spring in buffer layer, the bottom of damping spring is fixed with Pressing plate, shell are set to the upper end of buffer layer, when curtain can be stretched out by cavity, damping spring so that pressing plate in lifting process It is bonded with curtain, can not only make curtain unfold uniformly and reduce shake to damping is carried out in curtain lifting process.

Detailed description of the invention

Fig. 1 is that a kind of wire of the utility model goes up and down the structural schematic diagram of projection screen；

Fig. 2 is the structural schematic diagram that a kind of wire of the utility model goes up and down the upper cover of projection screen；

Fig. 3 is the schematic diagram that a kind of wire of the utility model goes up and down the pillar one of projection screen.

Label declaration in schematic diagram:

100, pedestal；110, base groove；120, pedestal pulley；130, pedestal drive shaft；140, pedestal driving motor

200, bracket；210, pillar one；221, pulley one；220, pillar two；222, pulley two；

300, upper cover；310, upper cover groove；320, upper cover pulley；330, upper cover drive shaft；340, upper cover driving motor； 350, mounting layer；360, cavity；370, pressing plate；380, buffer layer；381, damping spring；390, shell.

Specific embodiment

The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model, It states, several embodiments of the utility model is given in attached drawing, still, the utility model can come real in many different forms It is existing, however it is not limited to embodiment described herein, on the contrary, purpose of providing these embodiments is makes public affairs to the utility model It is more thorough and comprehensive to open content.

It should be noted that it can directly on the other element when element is referred to as " being fixedly arranged on " another element Or there may also be elements placed in the middle；When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements；Term as used herein " vertical ", " horizontal ", " left side ", " right side " and similar statement are for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical；Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model；Term " and or " used herein includes Any and all combinations of one or more related listed items.

Embodiment 1

Referring to attached drawing 1- attached drawing 3, a kind of wire of the present embodiment goes up and down projection screen, it is characterised in that: including pedestal 100, bracket 200 and upper cover 300, the pedestal 100 are equipped with base groove 110, and it is sliding to be equipped with pedestal in the base groove 110 Wheel 120, the bracket 200 include pillar 1 and pillar 2 220, the upper cover 300 be equipped with upper cover groove 310, it is described on Upper cover pulley 320 is equipped in lid groove 310, the pillar 1 and the horizontal cross section of pillar 2 220 are spill, the pillar 1 and the upper end of pillar 2 220 pull and push and connect with upper cover groove 310, the lower end of the pillar 1 and pillar 2 220 with Base groove 110 pulls and pushes connection, is additionally provided with pedestal driving motor 140 on the pedestal 100, which passes through Pedestal drive shaft 130 is connect with pedestal pulley 120, and the upper cover 300 is equipped with upper cover driving motor 340, upper cover driving electricity Machine 340 is connect by upper cover drive shaft 330 with upper cover pulley 320.

The middle section of the pillar 1 of the present embodiment is equipped with pulley 1, and the middle section of the pillar 2 220 is equipped with pulley two 222 upper covers 300 include mounting layer 350, buffer layer 380 and shell 390, and the upper cover groove 310 is set to mounting layer 350 It is interior, the cavity 360 for allowing curtain to pass through is equipped between the mounting layer 350 and buffer layer 380.It is equipped with and subtracts in the buffer layer 380 Spring 381 is shaken, the bottom of the damping spring 381 is fixed with pressing plate 370, and the shell is set to the upper end of buffer layer 380.Institute The length for stating pressing plate 370 is less than 300 length of upper cover, and the pressing plate 370 is in cavity 360 along the Impact direction of damping spring 381 It is mobile.The pedestal driving motor 140 in upper cover driving motor 340 and pedestal 100 in the upper cover 300 is staggered, and not It is set on same vertical line simultaneously.

The operating method of the present embodiment are as follows: by the cable that curtain side connects pass sequentially through cavity 360, upper cover pulley 320, The cable that the curtain other side connects is passed sequentially through cavity 360, upper cover pulley 320, pulley two by pulley 1, pedestal pulley 120 221, then pedestal pulley 120 opens pedestal driving motor 140 and upper cover driving motor 340, pedestal driving motor 140 simultaneously It is rotated with 340 synchronous uniform velocity of upper cover driving motor, curtain passes through under the driving of driving motor 140 and upper cover driving motor 340 Cavity 360, damping spring 381 stretch out so that pressing plate 370 is bonded with curtain, can not only make curtain unfold uniform and to curtain Damping is carried out in lifting process reduces shake, after cable drives curtain to be fully deployed, pedestal driving motor 140 and upper cover driving Motor 340 stalls, and completes curtain expansion.

Certain embodiment of the utility model above described embodiment only expresses, the description thereof is more specific and detailed, But it should not be understood as limiting the scope of the patent of the utility model；It should be pointed out that for the common of this field For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the protection scope of the utility model；Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (6)

1. a kind of wire goes up and down projection screen, it is characterised in that: described including pedestal (100), bracket (200) and upper cover (300) Pedestal (100) is equipped with base groove (110), is equipped with pedestal pulley (120) in the base groove (110), the bracket It (200) include pillar one (210) and pillar two (220), the upper cover (300) is equipped with upper cover groove (310), and the upper cover is recessed Upper cover pulley (320) are equipped in slot (310), the pillar one (210) and the horizontal cross section of pillar two (220) are spill, described The upper end of pillar one (210) and pillar two (220) pulls and pushes with upper cover groove (310) and connect, the pillar one (210) and pillar two (220) lower end pulls and pushes with base groove (110) and connect, and is additionally provided with pedestal driving motor (140) on the pedestal (100), should Pedestal driving motor (140) is connect by pedestal drive shaft (130) with pedestal pulley (120), and the upper cover (300) is equipped with upper Lid driving motor (340), the upper cover driving motor (340) are connect by upper cover drive shaft (330) with upper cover pulley (320).

2. a kind of wire according to claim 1 goes up and down projection screen, it is characterised in that: in the pillar one (210) Section is equipped with pulley one (211), and the middle section of the pillar two (220) is equipped with pulley two (222).

3. a kind of wire according to claim 1 goes up and down projection screen, it is characterised in that: the upper cover (300) includes peace Layer (350), buffer layer (380) and shell (390) are filled, the upper cover groove (310) is set in mounting layer (350), the peace The cavity (360) for allowing curtain to pass through is equipped between dress layer (350) and buffer layer (380).

4. a kind of wire according to claim 3 goes up and down projection screen, it is characterised in that: set in the buffer layer (380) Have damping spring (381), the bottom of the damping spring (381) is fixed with pressing plate (370), and the shell is set to buffer layer (380) upper end.

5. a kind of wire according to claim 4 goes up and down projection screen, it is characterised in that: the length of the pressing plate (370) Less than upper cover (300) length, the pressing plate (370) is mobile along the Impact direction of damping spring (381) in cavity (360).

6. a kind of wire according to claim 1-5 goes up and down projection screen, it is characterised in that: the upper cover (300) the pedestal driving motor (140) in upper cover driving motor (340) and pedestal (100) in is staggered, and does not set simultaneously It is placed on same vertical line.