Projection lamp

A projection lamp, including a housing, a first light-emitting component, a driving component, and a film, wherein a light-transmitting sheet is provided on one side of the housing, the first light-emitting component comprises a lamp holder provided in the housing, a main control board fixed on the lamp holder, and a first light source mounted on the main control board, the first light source is arranged away from a central axis of the lamp holder, the driving component is in driving connection with the lamp holder so as to drive the lamp holder to rotate around the central axis of the lamp holder, and the film is arranged in the housing and positioned between the first light source and the light-transmitting sheet. The first light-emitting component further includes a condenser lens, and the condenser lens is sleeved on the first light source.

TECHNICAL FIELD

The present utility model relates to the technical field of projection lamps, and in particular, to a projection lamp.

BACKGROUND

The projection lamp uses the principle of optical projection to project a pattern content on a LOGO light sheet onto a wall of a building or the ground by adopting a high-brightness light source, so as to form an image display and an advertising effect with a rich visual impact. The projection lamp has a novel and special media form, a dynamic visual effect, and can well attract the attention of consumers. The projection lamp is ubiquitous and is widely applied to places such as a shopping mall, a hotel, and KTV.

The light source and the film of the existing projection lamp are in a static state, and only static patterns can be projected, which cannot effectively attract the attention of consumers and has a poor display effect.

SUMMARY

A primary objective of the present utility model is to provide a projection lamp, which aims to solve the problem that a projection pattern of the existing projection lamp is single and has no diversity.

In order to achieve the objective, the present utility model provides a projection lamp, comprising:a housing, wherein a light-transmitting sheet is provided on one side of the housing;a first light-emitting component, wherein the first light-emitting component comprises a lamp holder provided in the housing, a main control board fixed on the lamp holder, and a first light source mounted on the main control board, and the first light source is arranged away from a central axis of the lamp holder;a driving component, wherein the driving component is in driving connection with the lamp holder so as to drive the lamp holder to rotate around the central axis of the lamp holder; anda film, wherein the film is arranged in the housing and positioned between the first light source and the light-transmitting sheet.

Optionally, the projection lamp further comprises a first mounting seat provided in the housing, the first mounting seat is provided with a first mounting groove, and the lamp holder is mounted in the first mounting groove.

Optionally, the first light-emitting component further comprises a limiting member, a limiting seat is convexly provided on a bottom wall of the first mounting groove, the lamp holder is sleeved on the limiting seat, and the limiting member is fixed on the limiting seat and limits the lamp holder in the first mounting groove.

Optionally, the lamp holder is provided with a second mounting groove, the limiting member is arranged in the second mounting groove, a first limiting structure is provided on an outer wall of the limiting member, and a second limiting structure engaged with the first limiting structure is provided on an inner wall of the second mounting groove.

Optionally, a first abutment ring is convexly arranged on a bottom wall of the first limiting structure.

Optionally, a second abutment ring is convexly arranged on a bottom wall of the lamp holder.

Optionally, the first light-emitting component further comprises a power supply slip ring, the lamp holder, the limiting member, and the first mounting seat are all provided with mounting through holes, and the power supply slip ring is arranged in the mounting through holes and electrically connected to the main control board.

Optionally, the driving component comprises a motor and a driving gear arranged on a driving shaft of the motor, the first mounting seat is provided with a third mounting groove, the motor is arranged in the third mounting groove, and a rack engaged with the driving gear is arranged on an outer wall of the lamp holder.

Optionally, the first light-emitting component further comprises a condenser lens, and the condenser lens is sleeved on the first light source.

Optionally, the projection lamp further comprises a second mounting seat arranged in the housing, the second mounting seat has a first opening and a second opening that are oppositely arranged, the film is arranged at the first opening, and the light-transmitting sheet is arranged on the second opening.

Optionally, the second mounting seat has an inner cavity communicating the first opening and the second opening, and the inner cavity is tapered.

Optionally, the light-transmitting sheet is a plano-concave lens, and another surface of the plano-concave lens relative to a concave surface is in an irregular wave texture shape.

Optionally, the lamp holder, the film, and the light-transmitting sheet are all coaxially arranged.

Optionally, the projection lamp further comprises a second light-emitting component arranged in the housing, the second light-emitting component comprises a second light source and a diffractive medium, the housing is provided with a mounting hole, the diffractive medium is arranged in the mounting hole, and the second light source is arranged in the housing and emits light toward the diffractive medium.

Optionally, the projection lamp further comprises a base, the base is provided with a placing groove, and the housing is movably arranged on a groove opening of the placing groove.

Optionally, two opposite sides of the groove opening of the placing groove are recessed to form an avoidance groove.

According to the present utility model, the driving component is in driving connection with the lamp holder, the first light source is arranged away from a central axis of the lamp holder, when the driving component drives the lamp holder to rotate around the central axis of the lamp holder, the first light source is driven to rotate eccentrically around the central axis of the lamp holder, the intensity of a light changes constantly after the light passes through the film, so that a projected pattern presents a dynamic effect. Compared with a static projected pattern, the projected pattern has a better display effect and can attract more attention of consumers.

The realization of the objectives, functional features, and advantages of the present utility model will be further explained in conjunction with the embodiments and with reference to the drawings.

DETAILED DESCRIPTION OF EMBODIMENTS

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. It is apparent that the described embodiments are only some, but not all, embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

It should be noted that, if directional indications (such as upper, lower, left, right, front, and rear) are involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationships, the motion situations and the like between individual components under a certain pose (as shown in the drawings), and if the certain pose changes, the directional indications change accordingly.

In addition, if there are descriptions relating to “first”, “second”, and the like in the embodiments of the present utility model, the descriptions of “first”, “second”, and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance thereof or implicitly indicating the quantities of technical features indicated. Thus, a feature defined by “first” or “second” may explicitly or implicitly include at least one such feature. In addition, “and/or” appearing herein is meant to include three parallel solutions, and taking “A and/or B” as an example, “and/or” includes solution A, solution B, or both solution A and solution B. In addition, the technical solutions among various embodiments may be combined with each other, but the combination must be based on that this combination can be realized by those of ordinary skill in the art, and when the combination of the technical solutions is contradictory or cannot be realized, such combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present utility model.

The present utility model provides a projection lamp.FIGS.1to5are specific embodiments of the projection lamp provided by the present utility model.

Referring toFIGS.1to5, the projection lamp comprises a housing1, a first light-emitting component, a driving component3, and a film4, wherein a light-transmitting sheet102is provided on one side of the housing1, the first light-emitting component comprises a lamp holder201provided in the housing1, a main control board202fixed on the lamp holder201, and a first light source203mounted on the main control board202, the first light source203is arranged away from a central axis of the lamp holder201, the driving component3is in driving connection with the lamp holder201so as to drive the lamp holder201to rotate around the central axis of the lamp holder201, and the film4is arranged in the housing1and positioned between the first light source203and the light-transmitting sheet102.

Specifically, the film4is printed with a pattern by ink. When the light from the first light source203irradiates the film4, the pattern on the film4can be projected. The lamp holder201and the film4are coaxially arranged, the first light source203is arranged away from the central axis of the lamp holder201, that is, the first light source203deviates from the central axis of the film4, so that the light emitted by the first light source203is projected on a part of the film4. When the driving component3drives the lamp holder201to rotate around the central axis, the main control board202and the first light source203also rotate around the central axis of the lamp holder201, and the intensity of a light changes constantly after the light passes through the film4, so that a projected pattern presents a dynamic effect. Compared with a static projected pattern, this projected pattern has a better display effect and can attract more attention of consumers. The first light source203is an incoherent light source, and light emitted by the incoherent light source does not interfere, so that the brightness of the projected pattern is uniform, for example, the first light source203can be an LED lamp bead, a laser lamp, and the like, preferably, the first light source is the LED lamp bead. In the present utility model, the LED lamp bead is a point light source, and the light path of this point light source is divergent, so that the illumination intensities projected on the film are different, and thus when the first light source203rotates around the central axis of the lamp holder201, the local illumination intensity of the film4continuously changes, so that the pattern projected by the projection lamp continuously changes, the light and shadow effect projected by the projection lamp is dynamic, and the diversity of the projection effect of the projection lamp is effectively improved.

Further, because the pattern of the film4is printed by ink that belongs to organic matters and is easily decomposed and discolored under strong light and at a high temperature, the color of the film4is easily faded in the using process and needs to be frequently changed. In the present utility model, the driving component3drives the first light-emitting component to rotate instead of driving the film4to rotate, so that the requirements on mounting and fixing the film4are not high, which is convenient for the mounting and disassembling of the film4and is easy to replace.

Referring toFIGS.4and5, the projection lamp further comprises a first mounting seat5, the first mounting seat5is arranged in the housing1, the first mounting seat5is provided with a first mounting groove501, the lamp holder201is mounted in the first mounting groove501, and the lamp holder201is rotatably connected to the first mounting groove501.

A limiting seat502is convexly provided on a bottom wall of the first mounting groove501, the lamp holder201is sleeved on the limiting seat502, the limiting member204is fixed on the limiting seat502, the lamp holder201is rotatably connected to the limiting seat502and the limiting member204, the limiting member204is fixed with the limiting seat502by screws, and the lamp holder201is limited by the limiting member204and the limiting seat502to prevent the lamp holder201from being displaced during rotation.

In order to further limit the lamp holder201, the lamp holder201is provided with a second mounting groove2011, the limiting member204is arranged in the second mounting groove2011, a first limiting structure2041is provided on an outer wall of the limiting member204, and a second limiting structure2012snapped with the first limiting structure2041is provided on an inner wall of the second mounting groove2011. It should be noted that the configurations of the first limiting structure2041and the second limiting structure2012are not limited herein. In the present utility model, the first limiting structure2041is a first limiting groove recessed on an inner wall of the lamp holder201, the second limiting structure2012is a second limiting groove recessed on an outer wall of the limiting member204, and the first limiting groove and the second limiting groove are engaged in a step shape.

A first abutment ring is convexly arranged on a bottom wall of the first limiting structure2041. A contact area between the first limiting structure2041and the second limiting structure2012can be reduced by the first abutment ring, and therefore, when the lamp holder201rotates, the friction between the first limiting structure2041and the second limiting structure2012is reduced.

A second abutment ring is convexly arranged on a bottom wall of the lamp holder201. The principle of the second abutment ring is the same as that of the first abutment ring, and is used to reduce the friction between the lamp holder201during rotation and the limiting seat502.

Referring toFIGS.2to5, the first light-emitting component further comprises a power supply slip ring205, the lamp holder201, the limiting member204, and the first mounting seat5are all provided with mounting through holes, and the power supply slip ring205is arranged in the mounting through holes and electrically connected to the main control board202. The main control board202and a power supply module of the projection lamp are conducted through the power supply slip ring205, if a common wire is provided to supply power to the main control board202, when the lamp holder201rotates and drives the main control board202to rotate, the wire is knotted until being disconnected. The power supply slip ring comprises a rotor connected to the main control board202and a stator connected to the power supply module, when the main control board202rotates, the rotor can rotate relative to the stator along with the main control board202, the stator remains stationary along with the power supply module, which may keep the power supply module and the main control board202continuously and stably conducted, effectively prevents the wire from being knotted, and improves the stability of the connection between the main control board202and the power supply module and the practicability of the projection lamp.

Referring toFIG.3, the driving component3comprises a motor301and a driving gear302arranged on a driving shaft of the motor301, the first mounting seat5is provided with a third mounting groove503, the motor301is arranged in the third mounting groove503, the motor301is fixed by the third mounting groove503, a rack206engaged with the driving gear302is arranged on an outer wall of the lamp holder201, when the motor301rotates, the driving gear302is driven to rotate, and the driving gear302drives the lamp holder201to rotate through the rack206.

The first light-emitting component further comprises a condenser lens207, the condenser lens is sleeved on the first light source203, and the light emitted by the first light source203can be more converged and projected on a part that is of the film4and corresponds to a position of the first light source203by the condensing lens207, so that the projected pattern is brighter, and the display effect is better.

Referring toFIG.5, the projection lamp further comprises a second mounting seat6arranged in the housing1, the second mounting seat6has a first opening601and a second opening602that are oppositely arranged, the film4is arranged at the first opening601, the light-transmitting sheet102is arranged on the second opening602, and the second mounting seat6is tapered. A diameter of the second opening602is greater than that of the first opening601, the second mounting seat6has an inner cavity603communicating the first opening601and the second opening602, and this arrangement conforms to a light diffusion path of the first light source203, can increase the projection area, and will not block the light projected by the first light source203through the film4. A receiving portion for placing the film4extends inwardly from the inner cavity603near the first opening601, so that the light of the first light source203passes through the film4and is emitted to the light-transmitting sheet102, according to this arrangement, when the film4needs to be disassembled, only the light-transmitting sheet102needs to be taken down and then taken out through the second opening602, which is very convenient.

Referring toFIGS.2,3, and5, the light-transmitting sheet102is a plano-concave lens, and when light reaches the plano-concave lens, the emitted light is diffused, so that the plano-concave lens arranged in the present utility model may increase a projection area. Another surface of the plano-concave lens relative to a concave surface is in an irregular wave texture shape. Specifically, one side of the concave surface of the plano-concave lens faces the first light source203, and the light projected by the first light source203can be converged, so that a projected pattern is brighter. In addition, a surface that is of the plano-concave lens and that is in an irregular wave texture shape can refract the light projected by the first light source203, so that the projected pattern presents a dynamic effect.

The projection lamp further comprises a second light-emitting component7arranged in the housing1, the second light-emitting component7comprises a second light source701and a diffractive medium702, the housing1is provided with a mounting hole101, the diffractive medium702is arranged in the mounting hole101, and the second light source701is arranged in the housing1and emits light toward the diffractive medium702. The light emitted by the second light source701can be diffracted by the diffractive medium702to form a diffractive light beam, that is, the light emitted by the second light source701irradiates on an object to form a light point, and the light point is combined with the pattern projected by the first light source203, so that the display effect is better. Preferably, the second light source701is a laser lamp.

Referring toFIG.2, the projection lamp further comprises a base8, the base8is provided with a placing groove801, and the housing1is movably arranged on a groove opening of the placing groove801, and the base8is used to receive the housing1.

Further, the housing1is placed in the placing groove801, and an orientation of the housing can be adjusted to adjust a projection direction of the projection lamp.

Two opposite sides of the groove opening of the placing groove801are recessed to form an avoidance groove802. The arrangement of the avoidance groove802is convenient for taking out the housing1from the placing groove801and adjusting a placement direction of the housing1.

In addition, the projection lamp further comprises a plurality of buttons103provided on one side of the housing1, a circuit board104provided in the housing1, and a speaker105provided in the housing1; the button103is connected to the circuit board104to control a projection mode of the projection lamp, thereby realizing the projection diversification of the projection lamp; the speaker105is connected to the circuit board104, the housing1is provided with a through hole for transmitting the sound of the speaker105, and the music or sales promotion information in a shopping mall can be played through the speaker105, so that the practicability of the projection lamp is improved.

The above mentioned contents are only optional embodiments of the present utility model and are not intended to limit the patent scope of the present utility model. Under the inventive concept of the present utility model, the equivalent structural transformations made by using the contents of the specification and the drawings of the present utility model, or direct/indirect applications to other related technical fields, are all included in the patent protection scope of the present utility model.