CN2783375Y

CN2783375Y - Screen frame

Info

Publication number: CN2783375Y
Application number: CN 200520057384
Authority: CN
Inventors: 周宏刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-26
Filing date: 2005-04-26
Publication date: 2006-05-24
Anticipated expiration: 2015-04-26

Abstract

The utility model relates to a screen frame which is composed of two brackets and one frame connected with the brackets, wherein the brackets comprise a bottom pipe and an upright pipe fixedly connected to a bottom pipe, the upright pipe comprises a lower upright pipe and an upper upright pipe, the lower upright pipe is fixedly connected with the bottom pipe, one end of the upper upright pipe is in a shrinking structure in a radical direction, and the upper upright pipe is inserted into the lower upright pipe. The frame is formed by sheathing four bending pipes, a plurality of transverse pipes, etc. One end of one of two adjacent sheathing pipes is in a shrinking structure in a radical direction, and one end of the shrinking structure in a radical direction is inserted into the other adjacent pipe for sheathing the two adjacent sheathing pipes. The screen frame has the advantages of simple structure, low cost, convenient assembly and disassembly, portability, etc.

Description

A kind of screen frame

[technical field]

The utility model relates to a kind of annex of projection equipment, refers in particular to a kind of portable screen frame.

[background technology]

Screen frame is used for supporting and fixing projection screen so that projection equipments such as projector with visual information projections such as picture, literal on screen.Common screen frame is a fixed sturcture, is not easy to carry, so people develop folding screen frame to satisfy the needs in market.As State Intellectual Property Office on July 3rd, 2003 Granted publication, the patent No. is that the utility model patent of ZL01255611.4 promptly discloses a kind of collapsible screen frame, this screen frame includes pillar and support, but this support clasp joint is in this pillar, screen is fixed on this support, wherein, the projection at the seat of honour of this pillar is placed in arm one end; The last arm other end is connected by adapter sleeve with lower branch line; The lower branch line other end base that is threaded; The kink elastic hinge of wearing in the Kong Houyu lower branch line on the base connects; One end of the transverse tube of this support is fixed with elbow connection, and the other end is connected with active joint; The vertical tube two ends connect active joint; Elbow connection on the transverse tube is connected with the active joint of vertical tube one end; Connect by jointing between the active joint of transverse tube, the vertical tube other end; Upper sleeve cover is connected with framework on being placed in transverse tube; Framework matches with this pillar.When not in use, earlier screen is taken off, then, transverse tube, vertical tube are outwards opened, jointing, active joint are pulled out, then can support is folding.Though the related support of this utility model is collapsible and be easy to carry, its structure more complicated, thus cause the cost of this screen frame higher; And in a single day this screen frame is made, and its size structure is promptly determined, the very difficult size of regulating this support according to the actual needs of user.

[summary of the invention]

For overcoming the existing shortcoming of above-mentioned screen frame, the purpose of this utility model be to provide a kind of simple in structure, low-cost, assembly and disassembly convenient and portable screen frame.

The purpose of this utility model is by following technical solution and realizes: this screen frame is made up of two stands and the framework that is connected in this support, and wherein, this support includes a bottom tube and and is fixed in standpipe on this bottom tube; This framework is socketed to form by pipe fittings such as four bend pipes and a plurality of transverse tubes, and in the two pipe fittings of adjacent socket, wherein an end of a pipe fitting is and radially dwindles structure, this pipe fitting be that an end that radially dwindles structure is inserted in another adjacent pipe fitting and the socket that realizes two pipe fittings.

This standpipe includes a lower standing tube and a upper riser, and this lower standing tube and this bottom tube are affixed, and an end of this upper riser is and radially dwindles structure, and it is plugged in this lower standing tube.

This standpipe is provided with a plurality of through holes, and this bend pipe is provided with a plurality of connecting holes, and this connection hole is provided with nut, and Z type screw rod is worn this through hole and is screwed together in this nut, thereby makes framework be fixed in column.

This framework also includes a plurality of vertical tubes, and this vertical tube is socketed between two bend pipes.

The length of this bottom tube, lower standing tube, upper riser, bend pipe, transverse tube and vertical tube is 40-200 centimetre.

This support and framework are stainless-steel tube or aluminium-alloy pipe or galvanized conduit preparation.

The beneficial effects of the utility model are: the standpipe of this support is socketed to form by lower standing tube and lower standing tube, and framework is socketed to form by pipe fittings such as bend pipe, transverse tube, vertical tubes, and it is simple in structure and with low cost; Carry out connection between each pipe fitting by the mode of pegging graft, its connection need not to use such as web members such as bolts, also need not to use such as instruments such as screwdrivers, and support is connected by Z type screw rod attaching nut with framework, also need not use, make that the assembly and disassembly of this screen frame are all very convenient such as instruments such as spanners; When not using this screen frame, this support and framework can be disassembled into a plurality of parts, and be easy to carry; The user can add or reduce the number of transverse tube/vertical tube according to the actual needs, thus the size of regulating this framework.

[description of drawings]

Fig. 1 is the structural representation of the support of a kind of screen frame of the utility model.

Fig. 2 is the schematic appearance of the framework of a kind of screen frame of the utility model.

Fig. 3 is the decomposing schematic representation of the framework of a kind of screen frame of the utility model.

Fig. 4 is an A-A sectional view shown in Figure 2.

Fig. 5 is the part sectioned view of the bend pipe of a kind of screen frame of the utility model.

Fig. 6 is the structural representation of the Z type screw rod of a kind of screen frame of the utility model.

Fig. 7 is the connected mode synoptic diagram of the utility model support and framework.

Fig. 8 is the schematic appearance of another embodiment of the utility model.

[embodiment]

The related screen frame of the utility model is made of two supports and a framework that is connected with this support, and wherein, this support is used to support this framework; This framework is used for fixing projection screen, it is made up of pipe fittings such as four bend pipes and a plurality of transverse tubes, the mutual socket of this bend pipe and transverse tube and form this framework, in the two pipe fittings of adjacent socket, wherein an end of a pipe fitting is and radially dwindles structure, the end that radially dwindles structure that is of this pipe fitting inserts another adjacent pipe fitting, and realizes the socket of two pipe fittings.

As shown in Figure 1, this support 10 is made up of bottom tube 100 and the standpipe 110 that is fixed on this bottom tube 100, and this standpipe 110 includes a lower standing tube 112 and a upper riser 114, and this lower standing tube 112 is affixed with this bottom tube 100; One end of this upper riser 112 is and radially dwindles structure, so that this upper riser 112 can insert this lower standing tube 114 and realize both connections; This standpipe 110 is provided with a plurality of through holes 116, and it is used for being connected of support 10 and framework 20.Can on this upper riser, peg graft another upper riser again and regulate the height of this support, to satisfy the needs that use.

To shown in Figure 5, this framework 20 is made up of four bend pipe 200-203 and six pipe fittings such as transverse tube 204-209 as Fig. 2.Wherein, four bend pipe 200-203 all have and are the end that radially dwindles structure, and it is used to the transverse tube of pegging graft, to realize being connected of bend pipe and transverse tube; The other end of bend pipe 201 and bend pipe 203 also is and radially dwindles structure, and it is plugged in bend pipe 200 and bend pipe 202 respectively.The two ends of transverse tube 205 and transverse tube 208 all are and radially dwindle structure, and it is plugged in respectively between transverse tube 204 and transverse tube 206, transverse tube 207 and the transverse tube 209.Four bend pipe 200-203 and six mutual sockets of transverse tube 204-209 and be assembled into this framework 20.In the present embodiment, this framework 20 includes six transverse tubes, but the quantity of this transverse tube is not limited to six, and it can increase or reduce according to the actual needs; Apparently, between two pipe fittings of socket mutually--include bend pipe and bend pipe, bend pipe and transverse tube, transverse tube and transverse tube, as long as being, an end of one of them pipe fitting radially dwindles structure, for example in the above-described embodiments, bend pipe has and is the end that radially dwindles structure, it inserts transverse tube and realizes both connections, an end of transverse tube is radially dwindles structure, and this transverse tube inserts bend pipe and realizes both sockets.The vertical tube of four bend pipe 200-203 partly is provided with a plurality of connecting holes 210, and these connecting hole 210 places are provided with nut 212.

Again in conjunction with Fig. 6 and Fig. 7, the standpipe part adjacency of the bent tube section of this framework 20 and this column 10, Z type screw rod 300 is worn the through hole 116 of this column 10 and is screwed together in the set nut 212 of this framework 20, thereby makes framework 20 be fixed in this column 10.The handle portion that the user holds this Z type screw rod is rotated, and this Z type screw rod can be screwed together in nut, and need not use such as instruments such as spanners, and its operation is more easy.

As shown in Figure 8, be the schematic appearance of another embodiment of the utility model, this framework 40 also can include a plurality of vertical tubes 400, and this vertical tube 400 is socketed between two bend connectors.The user can add or reduce the number of vertical tube 400 according to the needs that use, thereby regulates the height of this framework 40.

The ideal length of forming bottom tube, lower standing tube, the upper riser of this support and forming the pipe fitting such as bend pipe, transverse tube, vertical tube of this framework is 40-200 centimetre, if the length of pipe fitting is too short, the number of then forming the required pipe fitting of this screen frame is more, thereby cause the rigidity of this screen frame not enough, be difficult for to support and fixing projection screen; If the length of pipe fitting is long, then be not easy to carry.This support and framework are stainless-steel tube preparation, and it has the high characteristics of rigidity, make that be difficult for the being distorted distortion, monnolithic case of this screen frame is attractive in appearance, certain, also can use other preparation of pipes such as aluminium-alloy pipe, galvanized conduit.

Claims

1. a screen frame includes the framework that two stands and is connected in described support, it is characterized in that: described support includes the standpipe that a bottom tube and is fixed in described bottom tube; Described framework is socketed to form by four bend pipes and a plurality of transverse tube, and in the two pipe fittings of adjacent socket, wherein an end of a pipe fitting is and radially dwindles structure, and it is plugged in another adjacent pipe fitting.

2. screen frame as claimed in claim 1 is characterized in that: described standpipe includes a lower standing tube and a upper riser, and described lower standing tube and described bottom tube are affixed, and an end of described upper riser is and radially dwindles structure, and it is plugged in described lower standing tube.

3. screen frame as claimed in claim 2 is characterized in that: described standpipe is provided with a plurality of through holes, and described bend pipe is provided with a plurality of connecting holes, and described connection hole is provided with nut, and Z type screw rod is worn described through hole and is screwed together in described nut.

4. screen frame as claimed in claim 3 is characterized in that: the length of described bottom tube, lower standing tube, upper riser, bend pipe, transverse tube is 40-200 centimetre.

5. as claim 3 or 4 described screen frames, it is characterized in that: described support and described framework are stainless-steel tube or aluminium-alloy pipe or galvanized conduit preparation.

6. as claim 1 or 2 or 3 or 4 described screen frames, it is characterized in that: described framework also includes a plurality of vertical tubes, and described vertical tube is socketed between the described bend pipe.

7. screen frame as claimed in claim 6 is characterized in that: the length of described vertical tube is 40-200 centimetre.

8. screen frame as claimed in claim 7 is characterized in that: described vertical tube is stainless-steel tube or aluminium-alloy pipe or galvanized conduit preparation.