CN218972205U - Exhibition hall projection device - Google Patents

Abstract

The utility model provides a projection device for an exhibition hall, which comprises a projector body, wherein a supporting plate is arranged at the bottom end of the projector body, two through holes are respectively formed in the top end of the supporting plate, conical limit posts are respectively arranged at four corners of the top end of the supporting plate, connecting rings are arranged at the top ends of the conical limit posts, a concave case is arranged at the top end of the supporting plate, conical notch is respectively arranged at four corners of the bottom end of the concave case, a fixing seat is arranged at the top end of the interior of the concave case, limit seats are respectively arranged at four corners of the top end of the concave case, two supporting rods are respectively arranged at two sides of the top end of each limit seat, rotating shafts are respectively arranged between the two supporting rods, spool wheels are sleeved at the outer sides of the rotating shafts, the two spool wheels at the same side are respectively connected through transmission shafts, and steel ropes are fixedly connected at one ends of the inner sides of the four spool wheels. The utility model can realize the function of lifting the projector body through the matched use of the double-headed motor, the transmission shaft, the spool and the steel rope.

Description

Exhibition hall projection device

Technical Field

The utility model belongs to the technical field of projection devices, and particularly relates to an exhibition hall projection device.

Background

The Chinese patent application number is: CN202111309135.2, a digital exhibition hall projection presentation device, it includes the projecting apparatus body, there is ventilative net on the projecting apparatus body, be equipped with ventilative housing on the projecting apparatus body, ventilative net is arranged in ventilative housing, be equipped with the air-jet brush in the ventilative housing and move dust removal mechanism, air-jet brush moves dust removal mechanism and includes mounting panel, planetary dust brush unit and air-jet dust subassembly, in the ventilative housing was located to the mounting panel, planetary dust brush unit locates on the mounting panel and brushes and locate ventilative net, air-jet dust subassembly locates in the ventilative housing and runs through planetary dust brush unit center setting. The utility model relates to the technical field of projection devices, in particular to a digital exhibition hall projection demonstration device capable of automatically completing dust cleaning.

In the above-mentioned technical scheme, mainly drive planetary dust brush unit through the power ware and rotate, make the cleaning brush rotate around the shower nozzle pivoted while, dust brush on the ventilative net when the cleaning brush is close to the shower nozzle is lifted, when the cleaning brush kept away from the shower nozzle, expose ventilative net, the effectual cleanness that realizes ventilative net, guarantee ventilative net's gas permeability, avoid the dust of deposit on ventilative net simultaneously to flow into in the projecting apparatus, but along with the long-term use of projecting apparatus, can produce the condition that projection display screen luminance is dark and show unclear because of life problem leads to, the condition of projection apparatus body life is accompanied, the space in exhibition hall is great generally, and the distance of ceiling to ground is far away, staff need utilize the ladder of ascending to climb the operation after the projection apparatus is used for a long time, on the one hand, be inconvenient for changing, maintenance and maintenance projection apparatus body and bulb, on the other hand have the danger of certain aerial operation, lack the effect that makes things convenient for the staff to change projector body and bulb, maintenance and maintenance, thereby lead to the problem that the maintenance is big and the maintenance is comparatively dangerous with the environment.

In summary, the present utility model provides an exhibition hall projection device to solve the above-mentioned problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides an exhibition hall projection device which is used for solving the problems of high maintenance difficulty, dangerous maintenance environment and the like in the prior art.

The utility model provides a exhibition hall projection arrangement, includes the projector body, the backup pad is installed to the bottom of projector body, the top of backup pad is provided with two through-holes respectively, the top four corners of backup pad all is equipped with the spacing post of toper, the top of the spacing post of toper is equipped with connects the ring, the concave machine case is installed on the top of backup pad, the bottom four corners of concave machine case all is equipped with the cone slot, the fixing base is installed on the inside top of concave machine case, spacing seat is all installed on the inside top four corners of concave machine case, two bracing pieces are installed respectively to the top both sides of spacing seat, and two all install the pivot between the bracing piece, the outside cover of pivot is equipped with the spool, two of same one side all connect through the transmission shaft transmission between the spool, four the equal fixedly connected with steel cable of inboard one end of spool.

Further, the concave chassis is provided with through grooves at the top ends close to the conical notch, and one ends of the steel ropes are fixedly connected with the top ends of the connecting rings respectively through the through grooves.

Further, the inside of two the through-holes is all installed fastening screw, just the bottom of projecting apparatus body is equipped with a pair of screw hole that is used for being connected with fastening screw.

Furthermore, grooves are formed in four corners of the top end of the concave chassis, and fixing columns are arranged on the inner sides of the four grooves.

Further, the top fixed mounting of fixing base has double-end motor, the both ends of double-end motor are all fixed the cover and are equipped with first bevel gear.

Further, two sides of the transmission shaft are fixedly sleeved with second bevel gears, and the second bevel gears are in transmission connection with the first bevel gears on the same side through meshing teeth.

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

according to the utility model, the function of lifting the projector body can be realized through the cooperation of the double-headed motor, the transmission shaft, the spool and the steel rope, the double-headed motor is used for transmitting the two transmission shafts, the two transmission shafts respectively transmit the two spool, the four spool rotate, the falling force of the weight of the projector body and the weight of the supporting plate drives the steel rope, the steel rope pulls the supporting plate to limit the falling speed, the supporting plate and the projector body are prevented from falling to a certain height from the ground when the supporting plate rises, the supporting plate is connected with the conical notch arranged at the bottom end of the concave chassis in a clamping manner through the conical limit column arranged at the top end, and the dislocation prevention function is realized, so that the lifting projector body is convenient for workers to replace, repair and maintain.

Drawings

Fig. 1 is a schematic perspective view of an exhibition hall projection device according to the present utility model.

Fig. 2 is a schematic perspective view of a supporting plate of a projection device in an exhibition hall according to the present utility model.

Fig. 3 is a schematic sectional view of a part of the construction of a projection apparatus for a showroom according to the present utility model.

Fig. 4 is a schematic cross-sectional view of a concave chassis of an exhibition hall projection device according to the present utility model.

In the figure, the correspondence between the component names and the drawing numbers is:

1. a projector body; 2. a support plate; 3. a concave chassis; 4. a double-ended motor; 5. a transmission shaft; 6. a limit seat; 7. i-shaped wheel; 101. a fastening screw; 201. a through hole; 202. conical limit posts; 203. connecting the circular rings; 301. a groove; 302. fixing the column; 303. a fixing seat; 401. a first bevel gear; 501. a second bevel gear; 601. a support rod; 701. a steel rope.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

as shown in fig. 1 to 4:

the utility model provides a exhibition hall projection device, which comprises a projector body 1, wherein the bottom end of the projector body 1 is provided with a supporting plate 2, the supporting plate 2 is used for supporting, the top end of the supporting plate 2 is respectively provided with two through holes 201, the inner sides of the two through holes 201 are convenient for providing a connecting space, four corners of the top end of the supporting plate 2 are respectively provided with a conical limit column 202, the conical limit columns 202 are used for limiting, the top ends of the conical limit columns 202 are provided with connecting rings 203, the conical limit columns 202 are used for providing connecting points, the top ends of the supporting plate 2 are provided with a concave case 3, the four corners of the bottom end of the concave case 3 are respectively provided with a conical notch, the conical notch is used for providing a clamping connecting space and limiting, the inner top ends of the concave case 3 are provided with fixing seats 303, limiting seats 6 are all installed at the inside top four corners of spill machine case 3, two bracing pieces 601 are installed respectively to the top both sides of limiting seats 6, through two bracing piece 601 plays the effect of supporting, and two all install the pivot between the bracing piece 601, through the convenient hub connection of pivot, the outside cover of pivot is equipped with spool 7, through the mode of hub connection plays the effect of making things convenient for spool 7 pivoted, two of same one side all connect through transmission shaft 5 transmission between spool 7, makes transmission shaft 5 drives two simultaneously spool 7 thereby realizes simultaneous pivoted effect, four the inboard one end of spool 7 is equal fixedly connected with steel cable 701, drives the effect that steel cable 701 and then realizes rotating the pay-off steel cable 701 when making spool 7 pivoted, and the practicality is higher.

Wherein, concave machine case 3 all is provided with logical groove on the top that is close to the cone slot mouth, it plays the effect that provides the activity space to lead to the groove, the one end of steel cable 701 all through leading to the groove respectively with the top fixed connection who connects ring 203, through the fixed connection between steel cable 701 and the connection ring 203 increases the stability of junction.

Wherein, two the inside of through-hole 201 is all installed fastening screw 101, just the bottom of projector body 1 is equipped with a pair of screw hole that is used for being connected with fastening screw 101, through fastening screw 101 with the threaded connection of screw hole realizes increasing connection stability's effect.

The four corners at the top end of the concave chassis 3 are respectively provided with a groove 301, the inner sides of the four grooves 301 are respectively provided with a fixed column 302, the fixed columns 302 arranged on the inner sides of the grooves 301 play a role in facilitating hanging installation, and stability in hanging installation is improved.

Wherein, the top fixed mounting of fixing base 303 has double-end motor 4, through the both ends of double-end motor 4 are the syntropy rotates and play the effect of syntropy transmission, the equal fixed cover in both ends of double-end motor 4 is equipped with first bevel gear 401, through first bevel gear 401 plays the effect that provides the meshing connection.

The two transmission shafts 5 are fixedly sleeved with a second bevel gear 501, the second bevel gear 501 is used for providing meshing connection, the second bevel gear 501 is connected with the first bevel gear 401 on the same side through meshing transmission, and the meshing connection between the first bevel gear 401 and the second bevel gear 501 is used for realizing transmission.

The specific working principle is as follows:

the utility model solves the problems of high maintenance difficulty, dangerous maintenance environment and the like in the prior art, firstly, the first bevel gears 401 arranged at the two ends of the double-headed motor 4 are used for respectively driving the second bevel gears 501, so that the transmission shafts 5 with the second bevel gears 501 arranged at the two ends rotate in the same direction, the two transmission shafts 5 rotate and simultaneously drive the I-shaped wheels 7 with the two ends respectively in transmission connection to rotate, the four I-shaped wheels 7 rotate and simultaneously enable the supporting plate 2 fixedly connected with one ends of the four steel ropes 701 to descend, the supporting plate 2 descends and simultaneously enables the projector body 1 to descend, the effect of descending the projector body 1 is realized, the replacement, maintenance and maintenance work of workers is facilitated, and the practicability is high.

The embodiments of the present utility model have been shown and described for the purpose of illustration and description, it being understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made therein by one of ordinary skill in the art without departing from the scope of the utility model.

Claims (6)

1. The utility model provides a exhibition room projection arrangement, includes projecting apparatus body (1), its characterized in that: the utility model discloses a projector, including projecting apparatus body (1), backup pad (2) are installed on the bottom, the top of backup pad (2) is provided with two through-holes (201) respectively, the top four corners of backup pad (2) all is equipped with toper spacing post (202), the top of toper spacing post (202) is equipped with and connects ring (203), concave machine case (3) are installed on the top of backup pad (2), the bottom four corners of concave machine case (3) all are equipped with the toper notch, fixing base (303) are installed on the inside top of concave machine case (3), spacing seat (6) are all installed on the inside top four corners of concave machine case (3), two bracing pieces (601) are installed respectively on the top both sides of spacing seat (6), and two all install the pivot between bracing piece (601), the outside cover of pivot is equipped with I-shaped wheel (7), all through transmission shaft (5) transmission connection between I-shaped wheel (7) of same side, four I-shaped wheel (7) inboard one end all fixedly connected with steel cable (701).

2. The showroom projection device of claim 1, wherein: the concave chassis (3) is provided with through grooves at the top ends close to the conical notch, and one ends of the steel ropes (701) are fixedly connected with the top ends of the connecting rings (203) through the through grooves respectively.

3. The showroom projection device of claim 1, wherein: the inside of two through-holes (201) is installed fastening screw (101), just the bottom of projecting apparatus body (1) is equipped with a pair of screw hole that is used for being connected with fastening screw (101).

4. The showroom projection device of claim 1, wherein: grooves (301) are formed in four corners of the top end of the concave chassis (3), and fixing columns (302) are arranged on the inner sides of the four grooves (301).

5. The showroom projection device of claim 1, wherein: the double-ended motor (4) is fixedly arranged at the top end of the fixing seat (303), and first bevel gears (401) are fixedly sleeved at two ends of the double-ended motor (4).

6. The showroom projection device of claim 5, wherein: and one side of each transmission shaft (5) is fixedly sleeved with a second bevel gear (501), and the second bevel gears (501) are connected with the first bevel gears (401) on the same side through meshing transmission.

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