Projection lamp

Abstract

The utility model discloses a projection lamp which comprises a lamp body and a lamp cover. The projection device comprises a first shell, a light-emitting assembly arranged in the first shell and a film tray used for installing a film, the first shell is provided with an insertion hole used for installing the film tray, and the film tray is inserted into the insertion hole so that the film can be located in the irradiation direction of the light-emitting assembly; and a base, the projection device is installed on the base, the base is provided with a storage groove, and the storage groove is used for storing the film tray. According to the technical scheme, the film tray can be conveniently stored through the containing groove, the use convenience and practicability of the projection lamp are improved, and the projection lamp is suitable for various projection application scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to projection technology field, especially a kind of projection lamp. BACKGROUND

[0002] As professional equipment of image projection, film projection lamp plays an important role in many fields such as display, decoration and advertising, however, there are some significant technical problems in the design and use of film projection lamp products on the current market. These products are generally bulky, which not only increases the difficulty of transportation and installation, but also limits their application in limited space. In addition, the complexity of replacing the projection film is also a major pain point. In actual use, different scenes often need to replace different film, but the existing film projection lamp design is not convenient enough, and the operation is complex, which greatly affects the use efficiency. More importantly, as the core component of the projection lamp, the protection and carrying of the film have not been effectively solved. Due to the obvious shortcomings of the existing products in the protection and portability of the film, users often face many inconveniences when replacing and using the film, which not only affects the user experience, but also limits the wider application of film projection lamp. Therefore, it is necessary to make technical innovation and improvement on film projection lamp to solve the above problems. SUMMARY

[0003] The main purpose of the utility model is to provide a kind of projection lamp, to improve the practicality of projection lamp.

[0004] To achieve the above purpose, the projection lamp provided by the utility model comprises: a projection device, the projection device comprises a first shell, a light emitting assembly arranged in the first shell and a film tray for mounting a film, the first shell is provided with a jack for mounting the film tray, and the film tray is inserted into the jack so that the film is located in the irradiation direction of the light emitting assembly; and

[0005] A base is provided, the projection device is mounted on the base, and the base is provided with a receiving groove for receiving the film tray.

[0006] Optionally, the outer wall of the film tray is provided with a spring sheet, and the inner wall of the receiving groove is provided with a clamping groove matched with the spring sheet.

[0007] Optionally, the film tray is provided with a limiting block, and the base is provided with a limiting groove matched with the limiting block, and the limiting groove is located at the slot opening of the receiving groove.

[0008] Optionally, the front end of the film tray is provided with a buckle part, and the buckle part protrudes from the slot opening of the limiting groove.

[0009] Optionally, the base is provided with a position-avoiding groove, the limiting groove is located at the groove bottom of the position-avoiding groove, and the buckle part is located in the position-avoiding groove.

[0010] Optionally, the film tray side wall is provided with a positioning block, and the receiving groove inner wall is provided with a positioning groove matched with the positioning block.

[0011] Optionally, a plurality of receiving grooves are arranged on the base.

[0012] Optionally, the base is provided with a mounting groove, and the projection device is movably arranged in the mounting groove.

[0013] Optionally, the base comprises a second housing and a first mounting seat arranged on the top of the second housing, the receiving groove is arranged on the side wall of the second housing, and the mounting groove is arranged on the top of the first mounting seat.

[0014] Optionally, the first housing inner wall is provided with an arc-shaped iron sheet, and the first mounting seat bottom is provided with a magnet matched with the arc-shaped iron sheet.

[0015] Optionally, the first housing is provided with a light outlet hole, the light-emitting assembly comprises at least one incoherent light source emitting light towards the light outlet hole and at least one condenser lens arranged on the irradiation surface of the incoherent light source, and the film sheet is arranged on the other side of the condenser lens relative to the incoherent light source.

[0016] Optionally, the light-emitting assembly further comprises at least three lenses, and the three lenses are respectively an imaging lens, an adjusting lens and a wide-angle lens arranged in sequence in the projection direction of the film sheet.

[0017] Optionally, the light-emitting assembly further comprises a mounting sleeve, and the imaging lens, the adjusting lens and the wide-angle lens are arranged in the mounting sleeve.

[0018] Optionally, the light-emitting assembly further comprises a focusing knob fixed to the light outlet hole and a second mounting seat corresponding to the jack, the second mounting seat is provided with an adjusting seat, one end of the mounting sleeve is movably connected with the focusing knob, and the other end is screwedly connected with the adjusting seat to make the mounting sleeve move back and forth along the axis extension direction of the mounting sleeve relative to the adjusting seat.

[0019] Optionally, the projection device further comprises a decorative cover, the decorative cover is fixed in the light outlet hole, and the focusing knob is movably arranged on the decorative cover.

[0020] Optionally, the light-emitting assembly further comprises a control panel and a battery pack electrically connected with the control panel, and the control panel is electrically connected with the incoherent light source.

[0021] The utility model discloses technical scheme projection device including first casing, the light-emitting component of being located in first casing and be used for installing film plate film tray, first casing has set up the jack for the installation of film tray, and film tray is inserted in the jack, makes film plate be located the irradiation direction of light-emitting component. The base is equipped with the storage groove for storing film tray. The user is through with film tray is inserted into the jack of first casing, makes film plate with light-emitting component alignment, ensures that light source evenly irradiates on film plate, thereby forms the clear projection effect. In addition, through setting up the storage groove on the base, multiple film trays can conveniently store and take, avoid the loss or damage of film plate, therefore effectively improved the practicality of projection lamp. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to the structure shown by these drawings.

[0023] Figure 1 It is structural schematic diagram for the embodiment of the utility model projection lamp;

[0024] Figure 2 It is exploded state structural schematic diagram for the embodiment of the utility model projection lamp;

[0025] Figure 3 It is exploded state structural schematic diagram for the base;

[0026] Figure 4 It is sectional view for the base;

[0027] Figure 5 It is one angle structural schematic diagram for film tray.

[0028] Explanation of the attached drawings:

[0029] 10 - projection device; 11 - first housing; 111 - jack; 112 - arc-shaped iron sheet; 113 - light outlet hole; 121 - incoherent light source; 122 - condenser lens; 123 - imaging lens; 124 - adjusting lens; 125 - wide-angle lens; 126 - mounting sleeve; 127 - second mounting seat; 1271 - adjusting seat; 128 - focusing knob; 129 - control board; 130 - battery pack; 13 - film tray; 131 - film; 132 - spring piece; 133 - limiting block; 134 - buckle; 135 - positioning block; 20 - base; 21 - storage groove; 211 - positioning groove; 22 - clamping groove; 23 - limiting groove; 24 - avoiding groove; 25 - mounting groove; 26 - second housing; 27 - first mounting seat; 271 - magnet; 30 - decorative cover.

[0030] The realization, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0033] In addition, if the embodiments of the present application involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0034] The utility model provides a projection lamp.

[0035] In the embodiment of the utility model, as shown in the drawing, Figures 1 to 5 The projection lamp comprises a projection device 10, the projection device 10 comprises a first shell 11, a light-emitting assembly arranged in the first shell 11 and a film tray 13 for mounting a film sheet 131, the first shell 11 is provided with a jack 111 for mounting the film tray 13, and the film tray 13 is inserted into the jack 111 so that the film sheet 131 is located in the irradiation direction of the light-emitting assembly.

[0036] A base 20, the projection device 10 is installed on the base 20, and the base 20 is provided with a receiving groove 21 for accommodating the film tray 13.

[0037] In the embodiment, the projection device 10 is used for projecting a pattern, the first shell 11 is the shell structure of the projection device 10 and is used for providing a mounting position for other components of the projection device 10 and protecting other components. The light-emitting assembly is the light source unit of the projection lamp, and the pattern on the film sheet 131 is projected onto a light-carrying surface by emitting light to the film sheet 131. The light-emitting assembly can be one or more incoherent light sources 121, and the focusing lens 122 can be matched to improve the focusing effect of light, so as to ensure the definition and brightness of the projected pattern.

[0038] The film tray 13 is used for mounting and fixing the film sheet 131, and the film sheet 131 can contain different patterns. Users can change the projection pattern by replacing different film sheets 131 according to requirements. The film tray 13 is inserted into the jack 111 on the first shell 11, so that the film sheet 131 is located in the irradiation direction of the light-emitting assembly, so that light can accurately irradiate the film sheet 131 and project a pattern.

[0039] The base 20 is used for supporting the projection device 10 and providing a stable working platform, and the base 20 is provided with a receiving groove 21. The receiving groove 21 is used for conveniently storing a plurality of film trays 13, so that a plurality of film sheets 131 can be stored in an orderly manner, and users can conveniently take and replace the film sheets 131. The design of the receiving groove 21 not only avoids the damage of the film sheet 131, but also improves the use convenience of the projection lamp, so that the projection lamp is more practical and meets the requirements of different scenes.

[0040] The utility model discloses technical scheme projection device 10 including first casing 11, be located in the light emitting component and be used for installing the film tray 13 of film 131 in first casing 11, first casing 11 is set with the jack 111 of film tray 13 installation, film tray 13 is inserted in the jack 111, make film 131 be located in the illumination direction of light emitting component.The base 20 is equipped with the storage groove 21 for storing film tray 13.User through the film tray 13 is inserted into the jack 111 of first casing 11, make film 131 with light emitting component alignment, ensure that light source evenly irradiates on film 131, to form clear projection effect.In addition, through setting up the storage groove 21 on the base 20, multiple film tray 13 can conveniently store and take, avoid the loss or damage of film 131, therefore effectively improved the practicality of projection lamp.

[0041] Further, as shown in Figures 1 to 5 The outer wall of the film tray 13 is provided with a spring 132, and the inner wall of the storage groove 21 is provided with a clamping groove 22 matched with the spring 132. In this embodiment, the spring 132 is a structure with elasticity, which is installed on the outer wall of the film tray 13. When the film tray 13 is inserted into the storage groove 21 of the base 20, the spring 132 will cooperate with the clamping groove 22 in the storage groove 21, so that the film tray 13 can be firmly fixed in the storage groove 21, and the film tray 13 can also be easily taken out by the user when needed.

[0042] Further, as shown in Figures 1 to 5 The film tray 13 is provided with a limiting block 133, and the base 20 is provided with a limiting groove 23 matched with the limiting block 133, and the limiting groove 23 is located at the slot opening of the storage groove 21. In this embodiment, the limiting block 133 limits the depth of the film tray 13 inserted into the storage groove 21, so as to prevent the film tray 13 from being excessively inserted into the storage groove 21, and the user can take the film tray 13 more conveniently. The limiting groove 23 is located at the slot opening of the storage groove 21, and the cooperation of the limiting block 133 and the limiting groove 23 enables the tray to smoothly slide when inserted, and is clamped when reaching the limiting groove 23, preventing further insertion. This design not only improves the convenience of the user, but also avoids the difficulty of taking out the film tray 13 after being inserted too deeply, improving the practicality and user experience of the projection lamp.

[0043] Further, as shown in Figures 1 to 5As shown, the front end of the film tray 13 is provided with a buckle portion 134 which protrudes from the notch of the limiting groove 23. In this embodiment, the buckle portion 134 is a protruding structure located at the front end of the film tray 13, which is used for the user to hold the buckle portion 134 with the fingers when taking out the film tray 13, so as to pull out the film tray 13 from the storage groove 21. Specifically, when the user inserts the film tray 13 into the storage groove 21 of the base 20, the buckle portion 134 at the front end of the film tray 13 protrudes from the notch of the limiting groove 23, forming an obvious finger contact point, so that the user can conveniently take out the film tray 13 from the storage groove 21.

[0044] The design of the buckle portion 134 makes it more convenient to take out the film tray 13, especially when the film tray 13 is deep or low, the user can easily lift the tray by holding the buckle portion 134 without having to struggle or use other tools, effectively improving the practicality and convenience of the projection lamp.

[0045] Further, as shown in the drawings, Figures 1 to 5 The base 20 is provided with an avoiding groove 24, the limiting groove 23 is located at the groove bottom of the avoiding groove 24, and the buckle portion 134 is located in the avoiding groove 24. In this embodiment, the avoiding groove 24 is designed to accommodate the buckle portion 134, so as to avoid the buckle portion 134 protruding from the outer wall of the base 20, thereby reducing the risk of the film tray 13 being damaged due to external force causing the film tray 13 to separate from the base 20 during use. Specifically, the avoiding groove 24 completely places the buckle portion 134 in the groove, protecting the buckle portion 134 from being collided by external objects or external forces, and reducing the risk of the film tray 13 sliding out of the storage groove 21 due to accidental collision or external force.

[0046] Specifically, the avoiding groove 24 is provided on the outer wall of the base 20, and the storage groove 21 is provided on the bottom wall of the avoiding groove 24, so that the film tray 13 can be completely accommodated inside the base 20, effectively improving the reliability of the projection lamp. This design not only optimizes the structure of the projection lamp, so that the film tray 13 can be more securely fixed in the base 20, but also avoids the film tray 13 from being separated from the storage groove 21 due to external force, thereby improving the stability and long-term safety of the projection lamp.

[0047] Further, as shown in the drawings, Figures 1 to 5As shown, the side wall of the film tray 13 is provided with a positioning block 135, and the inner wall of the receiving groove 21 is provided with a positioning groove 211 matched with the positioning block 135. In this embodiment, the matching design of the positioning block 135 and the positioning groove 211 is used to ensure that the film tray 13 can be accurately positioned in the receiving groove 21, thereby preventing the film tray 13 from being displaced or tilted during storage. Specifically, when the film tray 13 is inserted into the receiving groove 21, the positioning block 135 and the positioning groove 211 are engaged with each other to ensure that the film tray 13 is in a fixed position. This design not only improves the stability and safety of the film tray 13, but also effectively avoids displacement or damage of the tray caused by misoperation or external force. In addition, the matching mode of the positioning groove 211 and the positioning block 135 also makes it more convenient and fast for the user to take and place the film tray 13, further improving the use experience of the projection lamp.

[0048] In addition, the installation positions of the positioning block 135 and the positioning groove 211 can be replaced with each other. It can be understood that the positioning groove 211 can be provided on the film tray 13, and the positioning block 135 can be provided on the inner wall of the receiving groove 21, which is not limited in particular.

[0049] Further, as shown in the drawings, Figures 1 to 4 The receiving groove 21 is provided with a plurality of receiving grooves 21 arranged at intervals on the base 20. In this embodiment, the receiving grooves 21 of the base 20 are designed to be arranged side by side, and the spacing between these receiving grooves 21 is appropriate, so that each receiving groove 21 can independently accommodate one film tray 13, and collision or interference between adjacent trays is avoided. At the same time, through this design, the user can conveniently store multiple film trays 13 on the base 20, and the storage positions of each film tray 13 are independent of each other, avoiding damage or deformation caused by stacking or extrusion. In addition, the provision of multiple receiving grooves 21 allows the user to select the appropriate film tray 13 according to the needs, further improving the diversity and practicality of the projection lamp.

[0050] Further, as shown in the drawings, Figures 1 to 4 The base 20 is provided with a mounting groove 25, and the projection device 10 is movably arranged in the mounting groove 25. In this embodiment, the position and shape of the mounting groove 25 match the bottom structure of the projection device 10, so that the projection device 10 can be stably assembled in the mounting groove 25, and the projection device 10 can move in the mounting groove 25, thereby facilitating the user to adjust the projection angle of the projection device 10 to obtain the best projection effect.

[0051] It should be explained that the mounting groove 25 can be provided on the top of the base 20, or on the side wall of the base 20, which is not limited in particular.

[0052] Further, as shown in the drawings, Figures 1 to 3As shown, the base 20 comprises a second housing 26 and a first mounting seat 27 arranged on the top of the second housing 26, the receiving groove 21 is arranged on the side wall of the second housing 26, and the mounting groove 25 is arranged on the top of the first mounting seat 27. In this embodiment, the second housing 26 is used to provide a stable support structure, and the first mounting seat 27 is used to mount the projection device 10. The receiving groove 21 is arranged on the side wall of the second housing 26, which is convenient for users to take the film tray 13.

[0053] The mounting groove 25 is arranged on the top of the first mounting seat 27, and the arrangement of the mounting groove 25 ensures that the projection device 10 can be accurately and stably mounted on the base 20. A stable contact surface is formed between the top of the first mounting seat 27 and the base 20, which ensures that the projection device 10 is not easy to loosen or displace during use, thereby improving the stability of the projection effect.

[0054] Further, as shown in Figures 1 to 3 The inner wall of the first housing 11 is provided with an arc-shaped iron sheet 112, and the bottom of the first mounting seat 27 is provided with a magnet 271 matched with the arc-shaped iron sheet 112. In this embodiment, the inner wall of the first housing 11 is provided with an arc-shaped iron sheet 112, and the bottom of the first mounting seat 27 is provided with a magnet 271 matched with the arc-shaped iron sheet 112. The design of the arc-shaped iron sheet 112 makes it form a matching area on the inner wall of the first housing 11, providing an accurate matching surface. The magnet 271 generates an adsorption effect with the arc-shaped iron sheet 112 through magnetic force, ensuring that the projection device 10 can be stably mounted in the mounting groove 25, avoiding loosening or falling off of the projection device 10 due to vibration or external force.

[0055] Specifically, the matching design of the arc-shaped iron sheet 112 and the magnet 271 makes the installation process more convenient and accurate. When the user installs the projection device 10, the magnet 271 can quickly adsorb with the arc-shaped iron sheet 112, ensuring that the projection device 10 is firmly fixed in the mounting groove 25, enhancing the stability and safety of the equipment. And the arc-shaped design can also make the projection device always adsorbed and fixed with the magnet 271 during the rotation angle process, effectively improving the stability of the projection effect of the projection lamp.

[0056] Further, as shown in Figure 1 and Figure 2As shown, the first housing 11 is provided with a light exit hole 113, the light emitting assembly includes at least one non-coherent light source 121 emitting light towards the light exit hole 113 and at least one condenser lens 122 arranged on the irradiation surface of the non-coherent light source 121, and the film 131 is arranged on the other side of the condenser lens 122 relative to the non-coherent light source 121. In this embodiment, the light exit hole 113 is used to provide the exit of light, ensuring that the light generated by the light emitting assembly can be smoothly projected to the outside. The condenser lens 122 is arranged between the light exit hole 113 and the non-coherent light source 121, which is used to focus the light emitted by the non-coherent light source 121, so as to improve the intensity of the light and ensure the uniformity and concentration of the light, thereby improving the definition and brightness of the projection effect.

[0057] Specifically, the condenser lens 122 focuses the scattered light emitted by the non-coherent light source 121, so that the light can be projected onto the film 131 with stronger brightness and more accurate beam shape, ensuring that the light is effectively projected through the pattern or content of the film 131. The film 131 is located on the other side of the condenser lens 122, which ensures that it can receive the focused light and project the light according to the pattern on the film 131 to form a clear and stable projection pattern. Through this structural design, the projection lamp can achieve a higher quality projection effect, meeting the needs of different use scenarios.

[0058] Further, as shown in Figure 1 and Figure 2 , the light emitting assembly further includes at least three lenses, three of which are imaging lens 123, adjustment lens 124 and wide-angle lens 125 arranged in sequence in the projection direction of the film 131. In this embodiment, the imaging lens 123 is used to collect the effective pattern spot passing through the film 131, form a real image, and project it to the adjustment lens 124; the adjustment lens 124 is used to reformat and correct the real image, and then project it to the wide-angle lens 125; the wide-angle lens 125 is used to enlarge the adjusted real image pattern and project it onto the light and shadow bearing surface, thereby presenting a clear and enlarged pattern effect on the light and shadow bearing surface. By arranging the lenses with different functions in sequence, the definition of the pattern projected by the projection device 10 can be effectively improved, thereby improving the practicality and image quality of the projection device 10.

[0059] It should be explained that the projection direction of the film 131 refers to the direction from the light source to the light exit hole 113.

[0060] Further, as shown in Figure 1 and Figure 2As shown, the light-emitting assembly further comprises a mounting sleeve 126, and the imaging lens 123, the adjusting lens 124 and the wide-angle lens 125 are arranged in the mounting sleeve 126. In this embodiment, the mounting sleeve 126 is used to fix and orderly arrange the imaging lens 123, the adjusting lens 124 and the wide-angle lens 125 together, so as to ensure the accurate docking and stability between the lens assemblies. Through this design, the lenses can maintain the correct relative positional relationship in the same sleeve, avoid the change of lens position caused by vibration or external force, and thus maintain the stability and clarity of the pattern projection, thereby effectively improving the practicability of the projection lamp.

[0061] Further, as shown in Figure 1 and Figure 2 , the light-emitting assembly further comprises a focusing knob 128 fixed to the light-emitting hole 113 and a second mounting seat 127 corresponding to the insertion hole 111, and the second mounting seat 127 is provided with an adjusting seat 1271. One end of the mounting sleeve 126 is movably connected with the focusing knob 128, and the other end is threadedly connected with the adjusting seat 1271 so that the mounting sleeve 126 moves back and forth along the axial extension direction of the mounting sleeve 126 relative to the adjusting seat 1271. In this embodiment, the focusing knob 128 and the adjusting seat 1271 jointly constitute a focusing system, and the adjusting seat 1271 realizes the accurate adjustment of the mounting sleeve 126 through the threaded connection. By rotating the focusing knob 128, the user can drive the mounting sleeve 126 to move along the axial direction in the adjusting seat 1271, so as to adjust the positions of the imaging lens 123, the adjusting lens 124 and the wide-angle lens 125, and further change the focusing state of the light. This design enables the projection device 10 to realize the accurate adjustment of the clarity and focal length, ensures the quality and clarity of the projected pattern, and also provides the user with a more convenient focusing experience.

[0062] Further, as shown in Figure 1 and Figure 2 , the projection device 10 further comprises a decorative cover 30 fixed in the light-emitting hole 113, and the focusing knob 128 is movably arranged on the decorative cover 30. In this embodiment, the decorative cover 30 is used to cover the light-emitting hole 113, and plays a role in aesthetics and protection, and also provides a supporting and fixed position for the focusing knob 128. The focusing knob 128 is movably connected with the decorative cover 30, so that the user can conveniently operate the focusing knob 128 to adjust the focal length. Since the focusing knob 128 is arranged on the decorative cover 30, the user can easily rotate the knob to realize the adjustment of the clarity and focal length of the projected pattern when focusing, and the design of the decorative cover 30 improves the overall appearance of the projection device 10, making it more in line with the aesthetic needs of the user. Through this design, the functionality and aesthetics of the projection device 10 are effectively combined.

[0063] Further, as shown in Figure 1 and Figure 2 The light-emitting assembly further comprises a control board 129 and a battery pack 130 electrically connected with the control board 129, and the control board 129 is electrically connected with the incoherent light source 121. In this embodiment, the control board 129 is used to control the power management and the switching of the light source of the projection device 10, and the battery pack 130 provides the required power supply for the light-emitting assembly. Through the electrical connection between the control board 129 and the incoherent light source 121, the adjustment of the parameters such as the brightness and the color temperature of the light source can be realized, so as to optimize the projection effect. The design of the battery pack 130 enables the projection device 10 to operate independently and not to rely on external power supply, thereby providing greater use flexibility and convenience.

[0064] The above is only optional embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A projection lamp characterized by comprising: The projection device comprises a first shell, a light-emitting assembly arranged in the first shell, and a film tray for mounting a film sheet, the first shell is provided with a socket for mounting the film tray, the film tray is inserted into the socket so that the film sheet is located in the irradiation direction of the light-emitting assembly; and A base is provided for mounting the projection device, the base is provided with a receiving groove for receiving the film tray. The outer wall of the film tray is provided with a spring, and the inner wall of the receiving groove is provided with a clamping groove matched with the spring.

2. The projection lamp of claim 1, wherein The film tray is provided with a limiting block, and the base is provided with a limiting groove matched with the limiting block, the limiting groove is located at the slot of the receiving groove.

3. The projection lamp of claim 1, wherein The front end of the film tray is provided with a buckle, and the buckle protrudes from the slot of the limiting groove.

4. The projection lamp of claim 3, wherein The base is provided with an avoiding groove, the limiting groove is located at the groove bottom of the avoiding groove, and the buckle is located in the avoiding groove.

5. The projection lamp of claim 4, wherein The side wall of the film tray is provided with a positioning block, and the inner wall of the receiving groove is provided with a positioning groove matched with the positioning block.

6. The projection lamp of claim 1, wherein A plurality of receiving grooves are arranged on the base.

7. A projection lamp as defined in any one of claims 1 to 6, characterized in that The base is provided with a mounting groove, and the projection device is movably arranged in the mounting groove.

8. The projection lamp of claim 7, wherein The base comprises a second shell and a first mounting seat arranged at the top of the second shell, the receiving groove is arranged in the side wall of the second shell, and the mounting groove is arranged at the top of the first mounting seat.

9. The projection lamp of claim 8, wherein, The inner wall of the first shell is provided with an arc-shaped iron sheet, and the bottom of the first mounting seat is provided with a magnet matched with the arc-shaped iron sheet.

10. The projection lamp of claim 9, wherein The first shell is provided with a light outlet, the light-emitting assembly comprises at least one incoherent light source emitting light towards the light outlet and at least one condenser lens arranged at the irradiation surface of the incoherent light source, and the film sheet is arranged on the other side of the condenser lens relative to the incoherent light source.

11. The projection lamp of claim 1, wherein The light-emitting assembly further comprises at least three lenses, three lenses are respectively an imaging lens, an adjusting lens and a wide-angle lens arranged in the projection direction of the film sheet.

12. The projection lamp of claim 11, wherein, The light-emitting assembly further comprises a mounting sleeve, and the imaging lens, the adjusting lens and the wide-angle lens are arranged in the mounting sleeve.

13. The projector lamp of claim 12, wherein the light source is a light emitting diode. The light-emitting assembly further comprises a focusing knob fixed to the light outlet and a second mounting seat arranged corresponding to the socket, the second mounting seat is provided with an adjusting seat, one end of the mounting sleeve is movably connected with the focusing knob, and the other end is threadedly connected with the adjusting seat so that the mounting sleeve moves back and forth along the axial extension direction of the mounting sleeve relative to the adjusting seat.

14. The projector lamp of claim 13, wherein, The projection device further comprises a decorative cover, the decorative cover is fixed in the light outlet, and the focusing knob is movably arranged on the decorative cover.

15. The projector lamp of claim 14, wherein the light source is a light emitting diode. The light-emitting assembly further comprises a control panel and a battery pack electrically connected with the control panel, and the control panel is electrically connected with the incoherent light source.

16. A projection lamp as defined in any one of claims 11 to 15, characterized in that ​

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