CN221303802U - Projector - Google Patents

Abstract

The utility model relates to a projector, in particular to a projector, which comprises a projection box body, wherein the projector is fixedly connected to the inside of the projection box body, a limiting mechanism is arranged at the bottom of the projector, a lifting folding mechanism is arranged at the bottom of the projection box body, a rotating notch is formed in one side of the projection box body, a second inserting groove is fixedly connected to the middle part of the rotating notch, the second inserting groove is far away from the upper side and the lower side of the rotating notch, and a rotating rod is arranged between the second inserting groove and the upper side and the lower side of the rotating notch.

Description

Projector

Technical Field

The utility model relates to a projector, in particular to a projector.

Background

The projector (also called projector) is also called "writing projector", providing large-size picture projection optical instrument, on the basis of direct projection slide projector, adding a reflecting mirror, changing light path, making the image of projection film placed on the object-carrying glass be projected on the screen, because its collecting mirror (usually using Fresnel lens) is large, it can be used for showing various large-size projection single sheets or coils made in advance or on-site writing, and projection teaching aids made of transparent material, etc. compared with slide projector, it has the following characteristics: the blackboard can be directly written on the projection film to replace a blackboard; short distance from the screen, but can generate large and bright images; when in use, tight shading is not needed; demonstration experiments can be performed using projection teaching aids, which can be generally divided into 3 types: common projectors, horizontal projectors and physical emission projectors.

At present, the projector for teaching needs to be fixed in the playing process, and the common projector is inconvenient to carry and is troublesome to carry.

There is therefore a need for a projector that ameliorates the above-described problems.

Disclosure of utility model

The present utility model is directed to a projector, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a projector, includes the projection box, the inside fixedly connected with projecting apparatus of projection box, the bottom of projecting apparatus is provided with stop gear, the bottom of projection box is provided with lift folding mechanism, rotation notch has been seted up to one side of projection box, the middle part fixedly connected with second cartridge groove of rotation notch, the upper and lower both sides of rotation notch are kept away from to the second cartridge groove, be provided with the dwang between the upper and lower both sides of second cartridge groove and rotation notch, the one end of dwang distributes in the inside four corners of rotation notch, the inside of dwang runs through and is provided with fixed bull stick, the dwang is located the outside rotation of fixed bull stick, the equal cartridge of upper and lower both sides of second cartridge groove is connected with spacing cartridge, the first magnetic attraction plate of extension end fixedly connected with of spacing cartridge, the upper and lower both sides of rotation notch inside are all fixedly connected with second magnetic attraction plate, first magnetic attraction plate adaptation and second magnetic attraction plate actuation can realize shifting out the rear projection box through the dwang and use the gyro wheel.

As a preferable scheme of the utility model, the fixed rotating rod is fixed at four corners inside the rotating notch, and two ends of the fixed rotating rod are fixedly connected with the second inserting and combining groove and the projection box respectively.

As the preferable scheme of the utility model, the limiting mechanism comprises a telescopic plate frame, a fixed bottom plate, a first inserting groove, a pneumatic telescopic rod, a knob, a threaded rod, a thread groove, a limiting block and a sliding slot, wherein the sliding slot is formed in the back plate on one side of the projection box body, the telescopic plate frame is connected with the sliding slot in an inserting way, the fixed bottom plate is fixedly connected with the bottom of the telescopic plate frame, a grab handle is formed on one side of the fixed bottom plate, the first inserting groove is fixedly connected with two sides above the fixed bottom plate, the pneumatic telescopic rod is rotatably connected with the inner part of the first inserting groove, two ends of the pneumatic telescopic rod are respectively connected with the projection box body and the first inserting groove in a rotating way through a hinge, and the projection box body can be stably lifted by starting the pneumatic telescopic rod to realize the adjustment of the height of the projector under the limiting of the telescopic plate frame and the limiting block in the sliding slot.

As the preferable scheme of the utility model, the pneumatic telescopic rod is obliquely arranged, the pneumatic telescopic rod is adapted to be transversely inserted into the first inserting groove under the condition that the telescopic plate frame is completely inserted into the sliding slot, the top of the telescopic plate frame is fixedly connected with the limiting block, the limiting block is limited to slide in the sliding slot, one side of the telescopic plate frame can be extruded through rotating the knob and the threaded rod, and auxiliary fixing is performed after the telescopic plate frame is extruded in an auxiliary mode.

As the preferable scheme of the utility model, the bottom of the projector is fixedly connected with the pneumatic telescopic rod, the socket is arranged above the bottom plate of the projection box body, the plug is inserted into the socket, the electric push rod is fixedly connected with the inside of the top plate of the projection box body, the hemispherical pressing block is fixedly connected with the extending end of the electric push rod, the bottom of the hemispherical pressing block is attached to the top of the projector, the limit of the projector can be realized through the socket and the plug, and the projector is prevented from sliding down, and the projector is stably fixed under the extrusion of the electric push rod at the top and the hemispherical pressing block.

As a preferable scheme of the utility model, a thread groove is formed in the bottom plate of the projection box body, a threaded rod is connected with the thread groove in a threaded manner, a knob is fixedly connected to one side of the threaded rod, the threaded rod is in threaded connection with the thread groove, the other end of the threaded rod is suitable for extrusion lamination with one side of the telescopic plate frame, and the threaded rod can be conveyed in a threaded manner after being rotated by the arranged threaded rod, so that extrusion fixation after the height of the telescopic plate frame is adjusted can be realized.

As a preferable scheme of the utility model, the number of the first inserting grooves is two, and the two sides of the two first inserting grooves are both connected with pneumatic telescopic rods in a rotating way.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, the roller can be rotated and moved out for use through the arranged rotating rod, the projection box body is convenient to transfer, the pneumatic telescopic rod is started to lift the projection box body, and the projection box body can be stably lifted under the limit that the telescopic plate frame and the limiting block are positioned in the sliding slot, so that the height of the projector is adjusted.

2. According to the utility model, extrusion on one side of the telescopic plate frame can be realized by rotating the knob and the threaded rod, auxiliary fixing is performed after the telescopic plate frame is extruded in an auxiliary mode, limiting and falling-off prevention of the projector can be realized by the aid of the arranged socket and the plug block, and the telescopic plate frame is stably fixed under extrusion of the top electric push rod and the hemispherical pressing block.

3. According to the utility model, the threaded rod can be in threaded transmission after the knob is rotated through the arranged threaded rod, so that the telescopic plate frame can be extruded and fixed after the height of the telescopic plate frame is adjusted.

Drawings

FIG. 1 is a schematic diagram of the front view of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

FIG. 3 is a schematic diagram of the internal structure of the present utility model in side view;

FIG. 4 is an enlarged schematic view of the structure A of the present utility model;

Fig. 5 is an enlarged schematic view of the structure B of the present utility model.

In the figure: 1. a projection box; 2. a projector; 3. a telescopic plate frame; 4. a fixed bottom plate; 5. a first insertion groove; 6. a pneumatic telescopic rod; 7. a knob; 8. a threaded rod; 9. a thread groove; 10. a limiting block; 11. a sliding slot; 12. a socket; 13. inserting blocks; 14. an electric push rod; 15. a hemispherical pressing block; 16. a second insertion groove; 17. a rotating lever; 18. fixing the rotating rod; 19. limiting plug blocks; 20. a first magnetic plate; 21. a second magnetic plate; 22. rotating the notch; 23. a roller; 24. a grab handle.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Several embodiments of the utility model are presented. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-5, the present utility model provides a technical solution:

Referring to fig. 1, 2, 3, 4 and 5, a projector includes a projection box 1, the inside fixedly connected with projector 2 of projection box 1, the bottom of projector 2 is provided with stop gear, the bottom of projection box 1 is provided with lift folding mechanism, rotation notch 22 has been seted up to one side of projection box 1, the middle part fixedly connected with second insertion groove 16 of rotation notch 22, the upper and lower both sides that the rotation notch 22 was kept away from to second insertion groove 16, be provided with dwang 17 between the upper and lower both sides of second insertion groove 16 and rotation notch 22, the one end of dwang 17 distributes in the inside four corners of rotation notch 22, the inside penetration of dwang 17 is provided with fixed bull stick 18, dwang 17 is located the outside rotation of fixed bull stick 18, the upper and lower both sides of second insertion groove 16 all are inserted and are connected with spacing inserted block 19, the extension end fixedly connected with first magnetic suction plate 20 of spacing inserted block 19, the upper and lower both sides of rotation notch 22 inside are fixedly connected with second magnetic suction plate 21, first magnetic suction plate 20 and second magnetic suction plate 21 are adapted to the second suction plate 21, can shift out to the rotation box 23 through rotation of rotation notch 22, it is convenient to realize to rotate projection 1.

In the embodiment, referring to fig. 1, 2 and 4, the fixed rotating rod 18 is fixed at four corners inside the rotating slot 22, and two ends of the fixed rotating rod 18 are fixedly connected with the second inserting and combining groove 16 and the projection box 1 respectively.

Referring to fig. 1, 3 and 5, the limiting mechanism includes a telescopic plate frame 3, a fixed bottom plate 4, a first inserting groove 5, a pneumatic telescopic rod 6, a knob 7, a threaded rod 8, a threaded groove 9, a limiting block 10 and a sliding slot 11, the telescopic plate frame 3 is connected to the inner inserting of the sliding slot 11 in a back plate of one side of the projection box body 1, a grab handle 24 is provided on one side of the fixed bottom plate 4, first inserting grooves 5 are fixedly connected to two sides above the fixed bottom plate 4, a pneumatic telescopic rod 6 is connected to the inner rotating of the first inserting grooves 5, two ends of the pneumatic telescopic rod 6 are respectively connected with the projection box body 1 and the first inserting grooves 5 in a rotating mode through hinges, the projection box body 1 is lifted by starting the pneumatic telescopic rod 6, the projection box body 1 can be stably lifted under the limiting of the position of the telescopic plate frame 3 and the limiting block 10 in the sliding slot 11, and the height of the projector can be adjusted.

Referring to fig. 2, 3 and 5, the pneumatic telescopic rod 6 is obliquely arranged, the pneumatic telescopic rod 6 is adapted to be transversely inserted into the first inserting and combining groove 5 under the condition that the telescopic plate frame 3 is completely inserted into the sliding slot 11, the top of the telescopic plate frame 3 is fixedly connected with the limiting block 10, the limiting block 10 is limited to slide in the sliding slot 11, one side of the telescopic plate frame 3 can be extruded through rotating the knob 7 and the threaded rod 8, and auxiliary fixing is performed after the telescopic plate frame 3 is extruded in an auxiliary mode.

Referring to fig. 2, 3 and 5, a pneumatic telescopic rod 6 is fixedly connected to the bottom of the projector 2, a socket 12 is formed above the bottom plate of the projection box 1, an insert 13 is inserted into the socket 12, an electric push rod 14 is fixedly connected to the inner part of the top plate of the projection box 1, a hemispherical pressing block 15 is fixedly connected to the extending end of the electric push rod 14, the bottom of the hemispherical pressing block 15 is attached to the top of the projector 2, limiting of the projector 2 can be achieved through the socket 12 and the insert 13, and sliding is avoided, and the projector is stably fixed under the extrusion of the top electric push rod 14 and the hemispherical pressing block 15.

Referring to fig. 2, 3 and 5, a threaded groove 9 is formed in the bottom plate of the projection box body 1, a threaded rod 8 is connected with the threaded groove 9 in a threaded manner, a knob 7 is fixedly connected to one side of the threaded rod 8, the threaded rod 8 is connected with the threaded groove 9 in a threaded manner, the other end of the threaded rod 8 is adapted to be extruded and attached to one side of the telescopic plate frame 3, the threaded rod 8 can be conveyed in a threaded manner after the knob 7 is rotated through the threaded rod 8, and therefore the telescopic plate frame 3 can be extruded and fixed after the height of the telescopic plate frame 3 is adjusted.

In the embodiment, referring to fig. 2, 3 and 5, two first inserting grooves 5 are provided, and two pneumatic telescopic rods 6 are rotatably connected to two sides of the two first inserting grooves 5.

Working principle: when the telescopic projection box is used, after the rotating rod 17 is pulled out, the limiting plug block 19 is pulled out of the second plug-in groove 16, the first magnetic attraction plate 20 at one end of the limiting plug block 19 and the second magnetic attraction plates 21 at two sides of the rotating notch 22 are attracted to each other, the roller 23 is used after being moved out in a rotating mode, the projection box 1 is conveniently transferred, after one side of the roller 23 falls to the ground, the pneumatic telescopic rod 6 is started to lift the projection box 1, the telescopic plate frame 3 and the limiting block 10 are located under the limiting of the sliding slot 11, stable lifting of the projection box 1 can be achieved, adjustment of the height of a projector is achieved, extrusion of one side of the telescopic plate frame 3 can be achieved through the rotating knob 7 and the threaded rod 8, auxiliary fixing is carried out after auxiliary extrusion of the telescopic plate frame 3, limiting of the projector 2 can be achieved through the socket 12 and the plug block 13 at the bottom of the projector 2, the top electric push rod 14 and the hemispherical pressing block 15 are stably fixed under extrusion of the rotating knob 7, the threaded rod 8 can be conveyed through threads on the threaded rod 8 after the height of the telescopic plate frame 3 is adjusted, and extrusion fixing is achieved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. Projector, comprising a projection box (1), characterized in that: the utility model discloses a magnetic field sensor, including projection box (1), upper and lower both sides of rotation notch (22), projection box (1), inside fixedly connected with projecting apparatus (2), the bottom of projecting apparatus (2) is provided with stop gear, the bottom of projection box (1) is provided with lift folding mechanism, rotation notch (22) have been seted up to one side of projection box (1), the middle part fixedly connected with second inserting groove (16) of rotation notch (22), the upper and lower both sides of rotation notch (22) are kept away from in second inserting groove (16), be provided with dwang (17) between the upper and lower both sides of second inserting groove (16) and rotation notch (22), the one end of dwang (17) distributes in the four corners of rotation notch (22) inside, the inside of dwang (17) is run through and is provided with fixed bull stick (18), outside rotation that dwang (17) are located fixed bull stick (18), the upper and lower both sides of second inserting groove (16) all are connected with spacing inserting piece (19), the extension end fixedly connected with first magnet plate (20) of spacing inserting piece (19), first magnet plate (21) are connected with second magnet plate (21).

2. A projector according to claim 1, wherein: the fixed rotating rod (18) is fixed at four corners inside the rotating notch (22), and two ends of the fixed rotating rod (18) are fixedly connected with the second inserting and combining groove (16) and the projection box body (1) respectively.

3. A projector according to claim 1, wherein: stop gear includes flexible grillage (3), PMKD (4), first inserting groove (5), pneumatic telescopic link (6), knob (7), threaded rod (8), thread groove (9), stopper (10) and slip slot (11), slip slot (11) have been seted up to the inside of one side backplate of projection box (1) the inside inserting of slip slot (11) is connected with flexible grillage (3), the bottom fixedly connected with PMKD (4) of flexible grillage (3), grab handle (24) have been seted up to one side of PMKD (4), the both sides fixedly connected with of PMKD (4) top first inserting groove (5), the inside rotation of first inserting groove (5) is connected with pneumatic telescopic link (6), the both ends of pneumatic telescopic link (6) are connected with projection box (1) and first inserting groove (5) rotation respectively through the hinge.

4. A projector according to claim 3, wherein: the pneumatic telescopic rod (6) is obliquely arranged, the pneumatic telescopic rod (6) is suitable for being transversely inserted into the first inserting and combining groove (5) under the condition that the telescopic plate frame (3) is completely inserted into the sliding slot (11), the top of the telescopic plate frame (3) is fixedly connected with a limiting block (10), and the limiting block (10) is limited to the sliding inside the sliding slot (11).

5. A projector according to claim 1, wherein: the bottom of the projector (2) is fixedly connected with a pneumatic telescopic rod (6), a socket (12) is arranged above the bottom plate of the projection box body (1), the plug (13) is plugged into the socket (12), the inside fixedly connected with electric putter (14) of projection box (1) roof, the extension end fixedly connected with hemisphere of electric putter (14) presses briquetting (15), the bottom of hemisphere presses briquetting (15) is laminated with the top of projecting apparatus (2).

6. A projector according to claim 1, wherein: the utility model discloses a projection box, including projection box (1), screw thread groove (9) have been seted up to the inside of projection box (1) bottom plate, the inside threaded connection of screw thread groove (9) has threaded rod (8), one side fixedly connected with knob (7) of threaded rod (8), threaded rod (8) and screw thread groove (9) threaded connection, the other end adaptation of threaded rod (8) is laminated with one side extrusion of flexible grillage (3).

7. A projector according to claim 4, wherein: the number of the first inserting grooves (5) is two, and the two sides of the two first inserting grooves (5) are both rotationally connected with pneumatic telescopic rods (6).