CN2185905Y

CN2185905Y - Folding back transparent type polyester fibre projection screen

Info

Publication number: CN2185905Y
Application number: CN 94206749
Authority: CN
Inventors: 陈建军; 粟戎生; 姚跃旋; 王书魁
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-05-31
Filing date: 1994-05-31
Publication date: 1994-12-21
Anticipated expiration: 2004-05-31

Abstract

The utility model relates to a folding back transparent type polyester fibre projection screen. A square groove-shaped aluminum product is made into a quadrate frame, and the lower part of the frame is provided with two folding supporting feet. A screen is made of a polyester fibre film material, and the upper and the lower ends of the screen are wound on a circular sleeve barrel. A left and a right end heads of the circular sleeve barrel are respectively inserted into a post pin of a spring bend head of the frame. As long as a hanging pin is pulled outwards, and the screen can be convenient to take off. Simultaneously, the frame of the screen can be convenient to fold and carry. The utility model is suitable for film television places and is especially useful for the field training and the combat command of armies.

Description

Folding back transparent type polyester fibre projection screen

What the utility model was related is a kind of folding back transparent type terylene projection screen, is applicable to the video display place, and especially to the open-air war training of army, the battlefield commander has purposes greatly.

The automatic projection instrument utilizes light that picture (lantern slide) projection is amplified on the screen, and screen mostly is suspended on the wall, during for the Field Operational training commander of army, and the suspension that at first will solve screen, this screen is just inconvenient.Simultaneously the white textiles screen is thicker, and light is penetrated from the front, and speech person's worn-out light of will hiding avoids covering a grade image, and the speech rod also has shade under light, influence video effect.

The utility model purpose is to provide a kind of folding back transparent type terylene projection screen, and screen can load and unload from framework easily, and screen frame is collapsible, conveniently moving, and screen adopts the mylar material to make clear picture simultaneously.

The utility model purpose is achieved in that this projection screen is a collapsible rectangular frame, and two folding feets are arranged under the framework, and the screen of being made by the mylar material is installed on the framework.

Rectangular frame is returned by square groove type aluminium, and separated and the hinge fold mechanism is housed in every frame, left and right frame can inwardly fold, upper and lower frame can about folding.Two feets are arranged at the rectangular frame bottom, and the hound of pillar four sides is equipped with fold mechanism equally, can inwardly fold, and are installed in the base of framework on the pillar by bolt, and loose bolts can make two feets folding.

Screen adopts single hair side mylar material to make, and two ends are wrapped in respectively on the jacket tube of garden up and down, and the left and right two ends of sleeve are inserted in respectively on the spring elbow pin of the upper and lower frame of framework.

Description of drawings:

Fig. 1--the utility model one-piece construction synoptic diagram;

Fig. 2--screen is installed in the structural representation on the framework;

The vertical view of Fig. 3--Fig. 2;

Fig. 4--left and right frame syndeton synoptic diagram;

Fig. 5--supporting foot structure synoptic diagram;

In conjunction with the accompanying drawings the utility model structure is specified:

By Fig. 1-5, this folding back transmission terylene projection screen is a folding rectangular frame (1), and this framework (1) length is 3 meters, and wide is 2.3～2.5 meters, and two folding feets (3) are arranged at the framework bottom, 0.6 meter of the floor level of two feets (1).

Foldable frame (1) is the rectangular frame that is returned by square groove type aluminium (25 * 25 millimeters), and is separated and hinge (11) is housed in the above in every frame; On the last bar frame (201) of left and right frame (20) and the lateral surface of following bar frame (202) this hinge (11) is housed, clamping plate (12) are housed on its relative inner face, the lower end of clamping plate (12) has pin (14) to be connected on the lower sid strip frame (201), after the upper end of clamping plate (12) is attached to the bar frame, block by the sliding sleeve on the edge strip frame (13), upper and lower frame is connected as a whole.This hinge (11) is equipped with in upper and lower frame (10) front of same framework (1), and clamping plate (12) are equipped with at its back side, and sliding sleeve (13) blocks it is connected as a single entity.Because upper and lower frame (10) goes back to four terminations of rectangularity framework with left and right side frame (20), all there is holding screw (8) to tangle, can make the framework activity, the sliding sleeve (13) that promotes like this on the frame is thrown off clamping plate (12), left and right side frame (20) can inwardly fold, upper and lower frame (10) can about folding.Two feets in framework lower end (3), the upper end of pillar (30) is installed on the framework base by bolt (9), and is separated in the four skew back struts (31) (32) of pillar (30), and loose-leaf and clamping plate are housed equally, and it can inwardly be folded.This pillar left and right sides hound also can omit, and the hound upper end is hinged by screw and this pillar (30), and by the screw hinge joint, base (33) are connected with pillar (30) lower end by loose-leaf its lower end and base (33).Loose bolts (9) promotes sliding sleeve and throws off clamping plate, and hound is inwardly folding, and by disturbing, rotation post (30) can be packed up feet, and is very convenient to pillar on the base.

Screen (2) is made by single hair side mylar material, two ends are wrapped in respectively on the garden sleeve (6) up and down, garden sleeve (6) two ends, the left and right sides are inserted in respectively in the spring elbow pin (5) of the upper and lower frame of framework (10) termination, pin (5) passes between the upper end of cushion block (4) on the frame (10), pin (5) and the cushion block (4) spring (7) is housed, spring (7) is enclosed within on the pin, as long as outwards spur elbow pin (5), like this, garden sleeve (6) can be thrown off with pin (5), and screen (2) can take off rolling.

Find out thus, between screen (2) and the framework (1) loading and unloading very convenient, and collapsible the packing up of framework (1), like this for army's field exercise operational commanding, greatly convenient.This screen adopts single hair side mylar material, and the saturating performance of matter glimmer is good, and projection ray penetrates from the back side, clear image, and this projection ray projects screen from the back side be back transmission, like this, any action in face of the screen does not all influence video effect.

Claims

1, a kind of folding saturating formula terylene projection screen, it is characterized in that: it is folding rectangular frame (1), two folding feets (3) are arranged at framework (1) bottom, the screen of making by single hair side mylar material, its upper/lower terminal is wrapped in respectively on the garden sleeve (6), and the left and right two ends of garden sleeve (6) are inserted in respectively on the spring elbow pin (5) of frame upper and lower side frame.

2, according to the described folding back transparent type terylene of claim 1 projection screen, it is characterized in that: framework (1) is made rectangular frame by square groove type aluminium, and is separated in each frame, and loose-leaf (11) is housed in the above, its opposite also has clamping plate (12), and it is connected as a single entity.

3,, it is characterized in that the pillar (33) of feet (3) is installed on the framework base by bolt, separated loose-leaf and the clamping plate of being equipped with equally in the hound of pillar (33) four sides according to the described projection screen of claim 1.