CN211344713U

CN211344713U - Projecting apparatus support frame is used in teaching

Info

Publication number: CN211344713U
Application number: CN201922073279.7U
Authority: CN
Inventors: 赵娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-08-25
Anticipated expiration: 2029-11-19

Abstract

The utility model relates to the technical field of teaching equipment, in particular to a projector support frame for teaching, which comprises a fixing part for being installed on a wall surface, wherein a sleeve is welded at the center of the bottom surface of the fixing part, a first connecting hole is formed on the sleeve, a movable cylinder is in clearance sliding fit on the inner wall of the sleeve, a second connecting hole is formed on the sleeve, a first locking component is jointly penetrated and inserted in the first connecting hole and the second connecting hole, a connecting piece is integrally formed at the bottom of the movable cylinder, the connecting piece is rotationally connected with a rotating piece through a rotating shaft, an annular array on the rotating piece is provided with four first inserting holes, a pair of second inserting holes which are arranged in axial symmetry are formed on the connecting piece, a second locking component is jointly inserted in the first inserting hole and the second inserting hole, a clamping jaw for fixing a projector is fixedly connected with the free end of the rotating piece, the, meanwhile, two modes of lifting and wall hanging can be carried out according to the field requirements, and the applicability of the wall hanging device is improved.

Description

Projecting apparatus support frame is used in teaching

Technical Field

The utility model relates to a teaching apparatus technical field, concretely relates to projecting apparatus support frame is used in teaching.

Background

Projectors may use optical elements to magnify the contour of a workpiece and project it onto a projection screen to display images, video, and the like. In order to solve the problem of placement of projectors, projector hangers have been created. Projection hangers are various in types, the use condition is greatly limited, and users need to select proper projection hanger specifications according to different indoor structures, heights, distances between the projection hangers and a projection screen and the weight of a projector.

Traditional projection gallows basic structure can divide into interconnect's jib and projecting apparatus locating rack two parts, and wherein the top of jib is fixed on the ceiling, and the projecting apparatus locating rack then plays the effect of fixed projecting apparatus.

However, the traditional hanger does not have a height adjusting function, so that the applicability of the hanger is reduced; meanwhile, the traditional hanging bracket can only be matched with one installation mode, or hung on a wall, and the applicability of the projector support frame is further reduced.

SUMMERY OF THE UTILITY MODEL

Solves the technical problem

Aiming at the defects in the prior art, the utility model provides a projector support frame for teaching, which can effectively solve the problem that the hanger in the prior art does not have a height adjusting function, thus reducing the applicability of the hanger; meanwhile, the traditional hanging bracket can only be matched with one installation mode, or hung on a wall, and the problem of applicability of the projector support frame is further reduced.

Technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a projector support frame for teaching comprises a fixing piece which is used for being installed on a wall surface, wherein a sleeve is welded at the center of the bottom surface of the fixing piece, a plurality of first connecting holes which are distributed at equal intervals up and down are formed in the sleeve, the first connecting holes transversely penetrate through the sleeve, a movable barrel is in clearance sliding fit with the inner wall of the sleeve, a plurality of second connecting holes which are distributed at equal intervals up and down are formed in the sleeve, the interval between the second connecting holes is equal to the interval between the first connecting holes, a first locking assembly is inserted into the first connecting holes and the second connecting holes in a penetrating mode, a connecting piece is integrally formed at the bottom of the movable barrel, the connecting piece is rotatably connected with a rotating piece through a rotating shaft, four first inserting holes are formed in the rotating piece, a pair of second inserting holes which are arranged in an axial symmetry mode are formed in the connecting piece, and a second locking assembly is inserted into any pair of first inserting holes and second inserting holes in the, the free end of the rotating piece is fixedly connected with a clamping jaw used for fixing the projector.

Furthermore, a first opening coaxial with the sleeve is formed in the bottom surface of the fixing piece, a second opening is formed in the bottom of the movable barrel, a cable of the projector can conveniently penetrate through the second opening to the first opening, and a certain hiding effect is achieved.

Furthermore, the first locking assembly comprises two first bolts, the outer ends of the two first bolts are connected together through a fixing plate, the vertical distance between the two first bolts is equal to twice the vertical distance between the first connecting hole and the second connecting hole, butterfly nuts are spirally connected to the other ends of the bolts, the length between the sleeve and the movable barrel can be stabilized through the first locking assembly, and meanwhile, the stability can be enhanced by designing the two first bolts.

Furthermore, the second locking assembly comprises two second bolts, the outer ends of the two second bolts are connected together through connecting rods, the distance between the two second bolts is equal to the linear distance between the second inserting holes, butterfly nuts are screwed on the other ends of the second bolts, the other state of the rotating part can be fixed through the second locking assembly, and meanwhile, the connection stability can be enhanced through the two first bolts.

Furthermore, the sleeves are provided with planes on the outer end faces of the first connecting holes, and the contact area between the second connecting holes and the butterfly nuts and the first bolts is increased.

Furthermore, a hexagonal screw hole is formed in one side of the second inserting hole, and the hexagonal screw hole is in interference fit with the outer end of the second bolt, so that the hexagonal second bolt is conveniently fixed in the hexagonal screw hole.

Advantageous effects

Adopt the utility model provides a technical scheme compares with known public technique, has following beneficial effect:

1. the utility model discloses an inside and outside nested sleeve and a movable section of thick bamboo set up the first connecting hole of complex and second connecting hole simultaneously respectively on sleeve and a movable section of thick bamboo, realize through a locking Assembly that the length between sleeve and the movable section of thick bamboo is fixed at last for the length of gallows can be adjusted according to the on-the-spot demand, has improved its suitability.

2. The utility model discloses a rotation piece that will be fixed with the clamping jaw rotates to be connected on the connecting piece of activity bobbin base portion, utilizes second locking Assembly to realize rotating the fixed of piece and connecting piece simultaneously to can rotate and also can fix well after taking place 90 degrees rotations, make this gallows can satisfy hoist and mount and hanging dual mode, improve its suitability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic view of a first view structure of the present invention;

fig. 2 is a schematic view of a second perspective structure of the present invention;

fig. 3 is an enlarged schematic structural diagram of a in fig. 2 according to the present invention;

FIG. 4 is a schematic cross-sectional view of a rotating member according to the present invention;

the reference numerals in the drawings denote: 1-a fixing piece; 2-a sleeve; 3-a first connection hole; 4-a movable cylinder; 5-a second connection hole; 6-a first locking assembly; 7-a connector; 8-a rotating member; 9-a first plug hole; 10-a second plug hole; 11-a second locking assembly; 12-a clamping jaw; 13-a second opening; 14-a fixed plate; 15-a first bolt; 16-a wing nut; 17-a connecting rod; 18-a second bolt; 19-hexagonal screw holes; 20-first opening.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Examples

The projector support for teaching of this embodiment, refer to fig. 1-4: the wall surface locking device comprises a fixing part 1 installed on a wall surface, wherein a sleeve 2 is welded at the center of the bottom surface of the fixing part 1, a plurality of first connecting holes 3 distributed at equal intervals from top to bottom are formed in the sleeve 2, the first connecting holes 3 transversely penetrate through the sleeve 2, a movable barrel 4 is in clearance sliding fit with the inner wall of the sleeve 2, a plurality of second connecting holes 5 distributed at equal intervals from top to bottom are formed in the sleeve 2, the interval between the second connecting holes 5 is equal to the interval between the first connecting holes 3, a first locking component 6 is jointly penetrated and inserted into the first connecting holes 3 and the second connecting holes 5, a connecting component 7 is integrally formed at the bottom of the movable barrel 4, the connecting component 7 is rotatably connected with a rotating component 8 through a rotating shaft, four first inserting holes 9 are formed in an annular array on the rotating component 8, a pair of second inserting holes 10 which are axially symmetrically arranged are formed in the connecting component 7, a second locking component 11 is jointly inserted into any pair of the first, the free end of the rotating member 8 is fixedly connected with a holding jaw 12 for fixing the projector.

Wherein, the bottom surface of the fixed part 1 is provided with a first opening 20 which is coaxial with the sleeve 2, the bottom of the movable cylinder 4 is provided with a second opening 13, the first locking component 6 comprises two first bolts 15 the outer ends of which are connected together through a fixed plate 14, and the vertical distance between the two first bolts 15 is equal to twice the vertical distance between the first connecting holes 3 or the second connecting holes 5, the other ends of the first bolts 15 are each screw-connected with a wing nut 16, the second locking assembly 11 includes two second bolts 18 whose outer ends are connected together by a connecting rod 17, and the distance between two second bolts 18 is equal to the linear distance between the second plug holes 10, the butterfly nuts 16 are screwed on the other ends of the second bolts 18, the outer end faces of the first connecting holes 3 of the sleeve 2 are provided with planes, one side of each second plug hole 5 is provided with a hexagonal screw hole 19, and the hexagonal screw holes 19 are in interference fit with the outer ends of the second bolts 18.

The working principle is as follows: can fix the gallows on wall crown or wall lateral wall through mounting 1, utilize the clearance of a movable section of thick bamboo 4 in sleeve 2 to slide, can make the second connecting hole 5 of a movable section of thick bamboo 4 align telescopic first connecting hole 3, then peg graft simultaneously two first bolts 15 of first locking subassembly 6 in the first connecting hole 3 of twice interval and second connecting hole 5 until wearing the opposite side, then screw up through butterfly nut 16 and realize the fixed of length on first bolt 15, make the length of gallows can adjust according to the on-the-spot demand, the suitability thereof is improved.

Meanwhile, when the wall hanging needs to be changed from the hoisting to the wall hanging, the rotating piece 8 and the clamping jaw 12 need to be rotated to the position which is 90 degrees with the movable cylinder 4, because the rotating piece 8 is provided with four first inserting holes 9 distributed in an annular array, and meanwhile, the connecting piece 7 is provided with second inserting holes 10 matched with the two first inserting holes 9 arranged in an axisymmetric way, when the rotating piece 7 rotates to be vertical to the movable cylinder 4, the two first inserting holes 9 on the inner side and the outer side of the rotating piece 7 rotate to be horizontal from the vertical state and are aligned with the horizontal second inserting holes 10, finally, two second bolts 18 of the second locking assembly 11 are simultaneously inserted into the first inserting holes 9 and the second inserting holes 10, and the second bolts 18 are aligned into the hexagonal screw holes 19, and are fixed on the other side through the butterfly nuts 16, and meanwhile, the two second bolts 18 help to enhance the stability when being fixed, make this gallows can satisfy hoist and mount and hanging two kinds of modes, improved its suitability.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a projecting apparatus support frame is used in teaching which characterized in that: the wall surface locking device comprises a fixing piece arranged on a wall surface, wherein a sleeve is welded at the center of the bottom surface of the fixing piece, a plurality of first connecting holes distributed at equal intervals up and down are formed in the sleeve, the first connecting holes transversely penetrate through the sleeve, a movable barrel is in clearance sliding fit on the inner wall of the sleeve, a plurality of second connecting holes distributed at equal intervals up and down are formed in the sleeve, the interval between the second connecting holes is equal to the interval between the first connecting holes, a first locking assembly is jointly penetrated and inserted in the first connecting holes and the second connecting holes, a connecting piece is integrally formed at the bottom of the movable barrel and is rotatably connected with a rotating piece through a rotating shaft, an annular array on the rotating piece is provided with four first inserting holes, a pair of second inserting holes arranged in an axial symmetry manner is formed in the connecting piece, and a second locking assembly is jointly inserted in any pair of the first inserting holes and the second inserting holes in an axial, the free end of the rotating piece is fixedly connected with a clamping jaw used for fixing the projector.

2. The support frame of claim 1, wherein the bottom surface of the fixing member has a first opening coaxial with the sleeve, and the bottom of the movable barrel has a second opening.

3. The projector support stand as claimed in claim 1, wherein the first locking member comprises two first bolts having outer ends connected together by a fixing plate, and a vertical distance between the two first bolts is equal to twice a vertical distance between the first connecting hole or the second connecting hole, and the other ends of the bolts are screwed with wing nuts.

4. The projector support stand as claimed in claim 1, wherein the second locking assembly comprises two second bolts having outer ends connected together by a connecting rod, the distance between the two second bolts is equal to the linear distance between the second insertion holes, and a butterfly nut is screwed onto the other end of the second bolt.

5. The projector mount as claimed in claim 1, wherein the sleeves are provided with flat surfaces on outer end surfaces of the first connecting holes.

6. The support frame for teaching projectors of claim 1, wherein a hexagonal screw hole is formed at one side of the second inserting hole, and the hexagonal screw hole is in interference fit with an outer end of the second bolt.