CN216286139U

CN216286139U - Curtain with support for practical activity

Info

Publication number: CN216286139U
Application number: CN202122960382.0U
Authority: CN
Inventors: 杨艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-04-12
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses a curtain with a support for practical activities, and mainly relates to the field of curtains with supports for projectors. Including the projection curtain, support ejector pin bottom both ends all are equipped with the hinge bar, the bottom of hinge bar is equipped with first articulated portion, it has first bracing piece to articulate in the first articulated portion, the bottom of first bracing piece is equipped with second articulated portion, second articulated portion articulates there is the second bracing piece, the bottom of second bracing piece articulates there is the support sill bar, two second articulated portion one side in opposite directions all sliding connection have first limiting plate, support sill bar top is equipped with third articulated portion, the one side that two third articulated portions carried on the back mutually all is equipped with the second limiting plate. The utility model has the beneficial effects that: it has solved the problem that traditional curtain need hang and use on the wall, through the support of taking folding portable to carry certainly, both conveniently carries, facilitates the use again, effectively improves mr's explanation effect.

Description

Curtain with support for practical activity

Technical Field

The application relates to the field of projector curtains with supports, in particular to a curtain with supports for practical activities.

Background

In the teaching process, class-outside learning activities such as class-outside visit and the like need to be frequently carried out, in order to effectively improve the learning effect of the class-outside activities, the visit content needs to be pertinently explained in the visiting process, the traditional explanation is mainly shown through language introduction or the propaganda content carried by an exhibition hall, the explanation content is not vivid enough through simple language, and the impression of students is shallow. The self-carried propaganda content of the exhibition hall is suitable for wide audiences, but the special optimization is difficult to be carried out aiming at the study of students, so that the introduction content and the content to be studied by the students deviate. In order to improve the effect of students on visiting and learning, part of teachers introduce pertinently through self-carrying portable projection, but part of teachers visit or outdoor places do not have proper curtains, so that a curtain with a portable stable support is needed, and teachers can conveniently conduct video or PPT explanation.

Disclosure of Invention

The utility model provides an aim at provides practical activity is with taking support curtain, it has solved traditional curtain and need hang the problem of using on the wall, through the support of taking the folding portable to carry certainly, both conveniently carries, facilitates the use again, effectively improves mr's explanation effect.

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

the curtain with the support for practical activities comprises a projection curtain, wherein the projection curtain is detachably fixed on a support top rod, two ends of the bottom of the support top rod are respectively provided with a hinge rod, the bottom of the hinge rod is provided with a first hinge part, the first hinge part is hinged with a first support rod, the bottom of the first support rod is provided with a second hinge part, the second hinge part is hinged with a second support rod, the bottom of the second support rod is hinged with a support bottom rod, one opposite surface of the two second hinge parts is respectively connected with a first limiting plate in a sliding manner, the first limiting plate is in a limiting state when sliding to the lowest position, the first support rod and the second support rod cannot relatively rotate when the first limiting plate is in a limiting state, the first limiting plate is in a non-limiting state when sliding to the highest position, and the first support rod and the second support rod can relatively rotate when in the non-limiting state, the support bottom bar top is equipped with third hinge portion, two the one side that third hinge portion carried on the back mutually all is equipped with the second limiting plate, the second limiting plate restriction second bracing piece rotates to support bottom bar middle part.

Furthermore, two support frames are symmetrically arranged at the bottom of the support bottom rod.

Furthermore, the bottom of support frame is equipped with the supporting pad.

Furthermore, the support frame is rotatably connected with the bottom rod of the support.

Further, the one side in opposite directions of second articulated portion all is equipped with first stopper, first stopper encloses into first spacing hole with second articulated portion, sliding connection has first limiting plate in the first spacing hole, the top of first limiting plate is equipped with spacing portion, spacing portion can not pass through first spacing hole, the one side in opposite directions of second bracing piece all is equipped with the second stopper, second stopper encloses into with the second bracing piece has the spacing hole of second, be limit state when first limiting plate inserts the spacing downthehole second.

Furthermore, a clamping block is further arranged on the first supporting rod, and the clamping block prevents the first limiting plate from being completely separated from the first supporting rod.

Furthermore, two one side that first bracing piece carried on the back mutually all is equipped with and accomodates the groove, when first bracing piece and second bracing piece rotated to support sill bar middle part, the second bracing piece inserted and accomodates the groove.

Compared with the prior art, the beneficial effects of the application lie in:

the existing curtain is not provided with a support and is inconvenient to use. The curtain of this application is from taking the support, and the convenience is used in the occasion of difference, and the support of this application can fold through first bracing piece of mutual articulated, second bracing piece and accomodate, conveniently carries.

The third articulated portion of this application is equipped with the second limiting plate to effectual rotation direction that has restricted the second bracing piece makes first bracing piece, second bracing piece can only be folded by support sill bar both ends in the middle of to the support sill bar and accomodate, and the effectual first bracing piece, second bracing piece that have prevented are outside folding to the support sill bar, avoid accomodating the direction mistake, need fold the problem of accomodating again.

This application is through the cooperation of second limiting plate and first limiting plate for the support of this application only needs two first limiting plates of activity when accomodating, and convenient operation is simple, improves and accomodates efficiency, reduces the in-process of accomodating or expanding and occupies too much practice time.

Drawings

Fig. 1 is a schematic view of the state of use of the present application.

Fig. 2 is a front view of the application in use.

Fig. 3 is a perspective view of the present application in a stored state.

Fig. 4 is a front view of the storage state of the present application.

Fig. 5 is an enlarged view of the area a in fig. 1 of the present application.

Reference numerals shown in the drawings:

1. a projection screen; 2. a support ejector rod; 3. a hinged lever; 4. a first hinge portion; 5. a first support bar; 6. a second hinge portion; 7. a second support bar; 8. a support bottom bar; 9. a first limit plate; 10. a third hinge; 11. a second limiting plate; 12. a support frame; 13. a support pad; 14. a first stopper; 15. a limiting part; 16. a second limiting block; 17. a clamping block; 18. a receiving groove.

Detailed Description

The present application is further illustrated with reference to specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present application. Further, it should be understood that various changes or modifications can be made to the present application by those skilled in the art after reading the teaching of the present application, and these equivalents also fall within the scope defined by the present application.

Example (b): the curtain with the support for practical activities comprises a projection curtain 1, wherein the projection curtain 1 comprises a cloth body and a scroll, the scroll is detachably fixed on a support ejector rod 2, two ends of the bottom of the support ejector rod 2 are respectively provided with a hinge rod 3, the bottom of the hinge rod 3 is provided with a first hinge part 4, the first hinge part 4 is hinged with a first support rod 5, the bottom of the first support rod 5 is provided with a second hinge part, the second hinge part is hinged with a second support rod 7, the bottom of the second support rod 7 is hinged with a support bottom rod, one opposite surface of the two second hinge parts is respectively fixed with a first limit block 14, the first limit block 14 and the second hinge part form a first limit hole, the first limit hole is internally connected with a first limit plate 9 in a sliding manner, the top of the first limit plate 9 is provided with a limit part 15, the limit part 15 can not pass through the first limit hole, the one side in opposite directions of second bracing piece 7 all is equipped with second stopper 16, second stopper 16 encloses with second bracing piece 7 and becomes to have the spacing hole of second, be limit state when first limiting plate 9 inserts the spacing downthehole second, relative rotation can not take place for first bracing piece 5 and second bracing piece 7 during limit state. In order to prevent the first limiting plate 9 from completely separating from the first supporting rod 5, a clamping block 17 is further fixed above the first limiting block 14, when the top of the first limiting plate 9 contacts with the bottom of the clamping block 17, the bottom of the first limiting plate 9 completely separates from the second limiting hole, and does not completely separate from the first limiting hole, and at this time, the first supporting rod 5 and the second supporting rod 7 can rotate relatively. The support sill bar top is equipped with second articulated portion 6, two the one side that 6 articulated portions of second carried on the back mutually all is equipped with second limiting plate 11, second limiting plate 11 restriction second bracing piece 7 rotates to support sill bar middle part, and when second bracing piece 7 rotated to the support sill bar outside, second limiting plate 11 carried on spacingly to second bracing piece 7, prevented that second bracing piece 7 from rotating to the support sill bar outside.

In order to increase the supporting area of the support and ensure the support stability of the support, two support frames 12 are symmetrically arranged at the bottom of the bottom rod of the support, and a supporting pad 13 is arranged at the bottom of each support frame 12. The stability of support has been strengthened in the setting of support frame 12, but support frame 12 sets up with the support sill bar is perpendicular under the user state, is unfavorable for the support to accomodate. For convenient storage support frame 12, support frame 12 is articulated with the support sill bar, and support frame 12 is parallel with support sill bar 8 when conveniently folding up, conveniently carries.

In order to guarantee that first bracing piece 5 all rotates to support sill bar middle part when rotating with second bracing piece 7, prevent to take place to interfere, two between first bracing piece 5 and the second bracing piece 7 one side that first bracing piece 5 carried on the back mutually all is equipped with and accomodates groove 18, when first bracing piece 5 rotates to support sill bar middle part with second bracing piece 7, second bracing piece 7 inserts and accomodates in the groove 18. The first supporting rod 5 and the second supporting rod 7 are prevented from interfering with each other when moving by arranging the accommodating groove 18, and accurate and quick accommodation is guaranteed.

Claims

1. Practice activity is with taking support curtain, its characterized in that: the screen comprises a projection screen (1), wherein the projection screen (1) is detachably fixed on a support ejector rod (2), two ends of the bottom of the support ejector rod (2) are respectively provided with a hinge rod (3), the bottom of the hinge rod (3) is provided with a first hinge part (4), the first hinge part (4) is hinged with a first support rod (5), the bottom of the first support rod (5) is provided with a second hinge part, the second hinge part is hinged with a second support rod (7), the bottom of the second support rod (7) is hinged with a support bottom rod, one opposite side of the two second hinge parts is respectively connected with a first limiting plate (9) in a sliding way, the first limiting plate (9) is in a limiting state when sliding to the lowest position, and the first support rod (5) and the second support rod (7) can not rotate relatively when the first limiting plate (9) is in a limiting state, first limiting plate (9) are non-limiting state when sliding to the highest point, during non-limiting state first bracing piece (5) and second bracing piece (7) can rotate relatively, support sill bar top is equipped with second articulated portion (6), two the one side that second articulated portion (6) were carried on the back mutually all is equipped with second limiting plate (11), second limiting plate (11) restriction second bracing piece (7) are rotated to support sill bar middle part.

2. The practically movable curtain with brackets as described in claim 1, wherein: two support frames (12) are symmetrically arranged at the bottom of the support bottom rod.

3. The practical active curtain with brackets as recited in claim 2, wherein: the bottom of the support frame (12) is provided with a support pad (13).

4. A practical movable curtain with brackets as claimed in claim 2 or 3, wherein: the support frame (12) is rotatably connected with the support bottom rod.

5. The practically movable curtain with brackets as described in claim 1, wherein: the hinge joint is characterized in that one side, in opposite directions, of the second hinge part is provided with a first limiting block (14), the first limiting block (14) and the second hinge part are enclosed to form a first limiting hole, a first limiting plate (9) is connected in the first limiting hole in a sliding mode, the top of the first limiting plate (9) is provided with a limiting portion (15), the limiting portion (15) cannot pass through the first limiting hole, one side, in opposite directions, of the second supporting rod (7) is provided with a second limiting block (16), the second limiting block (16) and the second supporting rod (7) are enclosed to form a second limiting hole, and the first limiting plate (9) is in a limiting state when being inserted into the second limiting hole.

6. The practical active curtain with brackets as recited in claim 5, wherein: still be equipped with fixture block (17) on first bracing piece (5), fixture block (17) prevent that first limiting plate (9) from breaking away from completely with first bracing piece (5).

7. The practically movable curtain with brackets as described in claim 1, wherein: two one side that first bracing piece (5) carried on the back mutually all is equipped with accomodates groove (18), when first bracing piece (5) and second bracing piece (7) rotated to support sill bar middle part, second bracing piece (7) insert and accomodate in groove (18).