Light blocking device and stage lamp with same

Abstract

A light-blocking device is characterized in that it includes a ring-shaped fixing member and a light-blocking member mounted on the fixing member and capable of rotating within a certain angle. The fixing member includes a main body formed by two semi-circular shells connected end to end and a mounting part for mounting the light-blocking member on the top of the fixing member. The first ends of the two semi-circular shells are hinged to each other, and the last ends of the two semi-circular shells are engaged with each other. Each semi-circular shell can pivot around the other semi-circular shell through a hinge.

Description

Technical Field

[0001] This utility model relates to the field of stage lighting technology, and more specifically, to a light-blocking device and a stage light having the same. Background Technology

[0002] To achieve the desired lighting effect or prevent glare, some lighting fixtures are equipped with light-blocking devices at their front ends. Existing light-blocking devices are typically attached to the fixture housing with screws, requiring tools such as screwdrivers for installation and removal. Since stage lights are generally mounted on trusses, which are typically around 10 meters high, it is inconvenient for operators to carry screwdrivers and other tools up the truss. Furthermore, the installation process carries the risk of screws or screwdrivers falling from a height, increasing the complexity and inconvenience of installing or removing the light-blocking devices. Summary of the Invention

[0003] This invention provides a light-blocking device to solve the above-mentioned problems.

[0004] On one hand, a light-blocking device includes an annular shell-shaped fixing member and a light-blocking member mounted on the fixing member and capable of rotating within a certain angle. The fixing member includes a main body formed by two semi-circular shells connected end to end and a mounting part for mounting the light-blocking member on the top of the fixing member. The first ends of the two semi-circular shells are hinged to each other, and the last ends of the two semi-circular shells are engaged with each other. Each semi-circular shell can pivot around the other semi-circular shell through a hinge.

[0005] As a further improvement of this utility model, the mounting part includes a support edge arranged circumferentially along the top of the main body and an arc-shaped sliding plate. The support edge is provided with arc-shaped guide holes arranged at intervals along the circumference, and the sliding plate is slidably connected to the support edge through the guide holes.

[0006] As a further improvement of this utility model, the maximum rotational stroke of the light-blocking component is 90°.

[0007] As a further improvement of this utility model, the light-blocking component includes several rectangular light-blocking blades and a rectangular mounting plate for mounting the light-blocking blades. The mounting plate is locked onto one of the sliding plates and is plugged into another sliding plate.

[0008] As a further improvement of this utility model, the mounting plate includes an elongated light-blocking strip on the upper surface, rectangular mounting ears on both sides of the light-blocking strip for mounting light-blocking leaves, and multiple arc-shaped limiting plates on the lower surface; the number of light-blocking strips is equal to the number of light-blocking leaves, and each limiting plate is provided with at least one limiting hole.

[0009] As a further improvement of this utility model, each slide plate is provided with a limiting protrusion with a bending structure, and the limiting protrusion and its corresponding limiting hole are connected by insertion.

[0010] As a further improvement of this utility model, the fixing component also includes a hinge and a connector. The first end of the semi-circular shell is provided with a mounting platform for installing the hinge, and the last end is provided with a mounting platform for installing the connector.

[0011] As a further improvement of this utility model, the connecting component is a buckle including a buckle seat and a buckle ring, with the buckle seat and buckle ring respectively installed on the mounting platform at the tail end, and the hinge is a hinge used to connect the head ends of the two semi-circular shells.

[0012] As a further improvement of this utility model, the semi-circular shell is a clamp, and the side of the semi-circular shell is provided with a hollow structure formed by an array of openings of the same shape.

[0013] On the other hand, a stage light includes a light-blocking device as described in any of the above claims, and also includes a front cover located at the light-emitting end of the stage light. The fixing member also includes a limiting part that is bent inward in the direction of the lower part of the main body. The mounting part and the limiting part cooperate with the front cover to form a bidirectional limiting.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The light blocking device is fixed to the stage lamp by two semi-circular shells. When the tail ends of the two semi-circular shells are engaged with each other, the light blocking device can be installed without tools simply by pressing the buckle ring after it is engaged with the buckle seat. When the two semi-circular shells pivot relatively far apart, the buckle ring can be disengaged from the buckle seat by pushing and pulling the buckle ring, thus achieving tool-free disassembly of the light blocking device. This greatly simplifies the installation and disassembly process of the light blocking device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the semi-circular housing of the light-blocking device of this utility model in a locked and connected state.

[0016] Figure 2 This is a schematic diagram showing the semi-circular housing of the light-blocking device of this utility model in a state of being unlocked.

[0017] Figure 3 This is an exploded perspective view of the light-blocking device of this utility model.

[0018] Figure 4 This is a schematic diagram showing the installation of the light-blocking device and the front cover of the lamp according to this utility model.

[0019] Figure 5 This is a cross-sectional view of the light-blocking device and the front cover of the lamp of this utility model.

[0020] Figure 6 This is a magnified view of a portion of point A.

[0021] Figure 7This is a magnified view of a section at point B.

[0022] In the diagram: 1-Fixed component; 11-Mounting part; 111-Supporting edge; 1111-Guide hole; 112-Slide plate; 1121-Limiting protrusion; 12-Limiting part; 13-Semi-circular shell; 131-Mounting platform; 132-Hollowed structure; 132-Opening; 14-Connector; 141-Snap-on seat; 142-Snap-on ring; 15-Head end; 16-Tail end; 17-Hinge; 2-Light blocking component; 21-Light blocking leaf; 22-Mounting plate; 221-Light blocking strip; 222-Mounting ear; 223-Limiting plate; 3-Front cover. Detailed Implementation

[0023] Combined with appendix Figure 1 and attached Figure 2A light-blocking device includes an annular shell-shaped fixing member 1 and a light-blocking member 2 mounted on the fixing member 1 and rotatable within a certain angle. The fixing member 1 includes a main body formed by two semi-circular shells 13 connected end to end and a mounting part 11 for mounting the light-blocking member 2 on the top of the fixing member 1. The first ends 15 of the two semi-circular shells 13 are hinged to each other, and the tail ends 16 of the two semi-circular shells 13 are engaged with each other. Each semi-circular shell 13 can pivot around the other semi-circular shell 13 through a hinge 17. The mounting portion 11 on the fixing member 1 is an annular bent plate, used to prevent the installation position of the light-blocking device from moving downwards; the mounting portion 11 can also be used to install the light-blocking member 2, and the mounting portion 11 is adapted to the light-blocking member 2; the light-blocking member 2 is located above the semi-circular shell 13, and the light-blocking member 2 can rotate within a certain angle range; when the light-blocking member 2 is locked onto the two semi-circular shells 13, the fixed connection between the light-blocking member 2 and the semi-circular shell 13 affects the pivoting movement of the semi-circular shell 13, and the semi-circular shell 13 cannot pivot outward normally; in this embodiment, the light-blocking member 2 is locked onto one of the semi-circular shells 13, and the connection between the other semi-circular shell 13 and the light-blocking member 2 is a movable connection, and each semi-circular shell 13 can pivot around its head end 15. In this embodiment, the head end 15 of the semi-circular shell 13 is hinged to the head end 15 of the other semi-circular shell 13, and each semi-circular shell 13 can pivot about the head end 15 of the other semi-circular shell 13 as the central axis. When installing the light-blocking device, the semi-circular housing 13 can be engaged manually; the light-blocking device can be firmly installed in the light-emitting direction of the lamp, effectively preventing glare; the light-blocking element 2 can also rotate within a certain angle to adjust its angle and achieve a better light-blocking effect; when disassembling the light-blocking device, it can be disengaged manually, allowing the semi-circular housing 13 to pivot, thus achieving tool-free disassembly of the light-blocking device. The beneficial effect of this embodiment is that the engagement of the two semi-circular housings 13 can be achieved without tools, allowing the light-blocking device to be firmly installed; and the disengagement of the two semi-circular housings 13 also requires no tools, as the semi-circular housing 13 can pivot around the hinge 17 to disengage the light-blocking device, greatly simplifying the steps of installing and disassembling the light-blocking device.

[0024] As a new implementation method, combined with the appendix Figure 3The mounting part 11 includes a support edge 111 arranged circumferentially along the top of the main body and an arc-shaped sliding plate 112. The support edge 111 is provided with arc-shaped guide holes 1111 arranged circumferentially. The sliding plate 112 is slidably connected to the support edge 111 through the guide holes 1111. The support edge 111 is provided with four guide holes 1111, that is, each support edge 111 on the semi-circular shell 13 is provided with two guide holes 1111. The slide plate 112 is installed on the two guide holes 1111 of the support edge 111 at the top of the same semi-circular shell 13. When the slide plate 112 slides along the guide holes 1111, it naturally forms a rotational motion around the central axis of the light-blocking device. The edge of the mounting part 11 is provided with a bending plate. When the width of the slide plate 112 is less than the width of the support edge 111, it can effectively prevent the slide plate 112 from interfering with the bending plate of the mounting part 11, causing the slide plate 112 to slide and get stuck. The light-blocking member 2 is rotatably and slidably connected to the fixing member 1 through the slide plate 112. Pushing the slide plate 112 to slide along the guide holes 1111 can drive the light-blocking member 2 to rotate and achieve angle adjustment. The beneficial effect of this embodiment is that the light-blocking member 2 can be slidably connected to the fixing member 1 through the support edge 111 and the slide plate 112, which is conducive to adjusting the light-blocking angle of the light-blocking member 2, preventing light from leaking out from the light-blocking member 2, thereby avoiding glare.

[0025] As a new implementation method, combined with the appendix Figure 1 The maximum rotational stroke of the light-blocking component 2 is 90°. The light-blocking component 2 is slidably connected to the guide hole 1111 on the fixing component 1 via a sliding plate 112, with the sliding plate 112 slidably mounted on the guide hole 1111; that is, the rotation angle range is ±45°, and the light-blocking component 2 can rotate clockwise or counterclockwise. As those skilled in the art will understand, the emitted light from the lamp is scattered from all directions, so there may be situations where more light is emitted from a certain angle. When the light-blocking component 2 cannot completely block the light, the angle of the light-blocking component 2 can be adjusted to effectively prevent light leakage and glare. The beneficial effect of this embodiment is that the position of the light-blocking component 2 can be adjusted within a 90° rotation angle range, which helps to prevent light leakage and glare, and at the same time, it can make the beam formed in the light-emitting direction brighter.

[0026] As a new implementation method, combined with the appendix Figure 3The light-blocking component 2 includes several rectangular light-blocking blades 21 and a rectangular flat mounting plate 22 for mounting the light-blocking blades 21. The mounting plate 22 is locked onto one of the sliding plates 112, and the mounting plate 22 is inserted into the other sliding plate 112. A light-passing hole is provided in the center of the mounting plate 22 to allow light to pass through. The light-blocking blades 21 are mounted on the edges of the mounting plate 22. Since the fixing component 1 consists of two semi-circular housings 13 that can pivot around the head end 15, the semi-circular housings 13 achieve tool-free assembly and disassembly of the light-blocking device through pivoting. When the mounting plate 22 on the light-blocking component 2 is locked onto the two sliding plates 112, the semi-circular housings 13 cannot pivot outward around the head end 15, i.e., the light-blocking device cannot be disassembled. Therefore, in this embodiment, the mounting plate of the light-blocking component 2... Mounting plate 22 is locked onto one of the sliding plates 112, and the other sliding plate 112 is plugged into the mounting plate 22. When the light-blocking device is removed, the sliding plate 112 plugged into the mounting plate 22 can be disengaged, and both semi-circular housings 13 can pivot smoothly. Furthermore, the light-blocking member 2 and the fixing member 1 remain in a fixed connection state, so even if the semi-circular housing 13 pivots, the light-blocking member 2 will not separate from the fixing member 1, effectively avoiding operational inconvenience caused by the separation of the light-blocking member 2 from the fixing member 1 during disassembly. The beneficial effect of this embodiment is that the mounting plate 22 is locked onto one of the sliding plates 112, and the two semi-circular housings 13 can pivot smoothly after disengaging from the locking connection.

[0027] As a new implementation method, combined with the appendix Figure 3The mounting plate 22 includes an elongated light-blocking strip 221 on the upper surface, rectangular mounting ears 222 on both sides of the light-blocking strip 221 for mounting light-blocking leaves 21, and multiple arc-shaped limiting plates 223 on the lower surface. The number of light-blocking strips 221 is equal to the number of light-blocking leaves 21, and each limiting plate 223 has at least one limiting hole 2231. Each light-blocking strip 221 has mounting ears 222 on both sides for mounting light-blocking leaves 21, and the light-blocking leaves 21 are fastened to the mounting ears 222 by fasteners. The light-blocking leaves 21 are rectangular plates, and each light-blocking leaf 21 can rotate around its two corresponding mounting ears 222 to adjust the light-blocking area of ​​the light-blocking leaf 21. The light-blocking strip 221 is a bent flat plate at the edge of the mounting plate 22, and the light-blocking strip 221 is located in the outer periphery of the bottom of the light-blocking leaves 21 to block light leaking through the gap between the light-blocking leaves 21 and the mounting plate 22. Two sets of light-blocking leaves 21 are respectively installed on... On the mounting plate 22, two identical light-blocking blades 21 are arranged in a one-to-one correspondence. Another set of light-blocking blades 21 are rectangular flat plates, and another set are rectangular bent plates. Due to the structural characteristics of the bent plates, the two upper rectangular bent plates will not warp, thus avoiding increasing the space occupied by the light-blocking component 2. Below the mounting plate 22, there are also multiple arc-shaped limiting plates 223 with the same radius. The radius of the limiting plates 223 is larger than the radius of the light-transmitting holes on the mounting plate 22, preventing the limiting plates 223 from blocking the emitted light. The limiting plates 223 are vertically distributed below the mounting plate and form a circle. The beneficial effect of this embodiment is that each limiting plate 223 has a limiting hole 2231, through which the mounting plate 22 is inserted and connected to the sliding plate 112, effectively preventing the light-blocking component 2 from shifting during rotation. Even during long-term use, the light-blocking component 2 can still be firmly installed on the fixing component 1.

[0028] As a new implementation method, combined with the appendix Figure 3 Each slide plate 112 has a bent limiting protrusion 1121, which is connected to its corresponding limiting hole 2231. The limiting protrusion 1121 is an inwardly bent plate-like structure, and each slide plate 112 has two limiting protrusions 1121. The limiting protrusions 1121 correspond one-to-one with the limiting holes 2231 on the mounting plate 22. When the light-blocking device is installed, each limiting protrusion 1121 is inserted into the limiting hole 2231 on the mounting plate 22, and the mounting plate 22 is locked to one of the slide plates 112. The mounting plate 22 and the other slide plate 112 are only connected by the limiting protrusions 1121 and the limiting holes 2231. When the light-blocking device is removed, the limiting holes 2231 on the mounting plate 22 are disengaged from the limiting protrusions 1121 on the other slide plate 112. The advantage of this implementation is that it prevents the light-blocking component 2 from shifting without the need for fasteners, while simplifying the disassembly process and improving ease of operation.

[0029] As a new implementation method, combined with the appendix Figure 3 The fixing component 1 also includes a hinge 17 and a connector 14. The first end 15 of the semi-circular shell 13 is provided with a mounting platform 131 for mounting the hinge 17, and the last end 16 is provided with a mounting platform 131 for mounting the connector 14. The mounting platform 131 is a rectangular flat plate on the last end 16, and has multiple mounting holes for mounting the connector 14 or the hinge 17. The hinge 17 is respectively locked onto the mounting platforms 131 at the first ends of the two semi-circular shells 13, and the connector 14 is respectively locked onto the mounting platforms 131 at the last ends of the two semi-circular shells 13. That is, the two semi-circular shells 13 are fixedly connected by the hinge 17 and engaged by the connector 14, and the semi-circular shells 13 can pivot around the hinge 17. The beneficial effect of this embodiment is that it allows the two semi-circular shells 13 connected end-to-end to be stably connected, and after the connector 14 is disengaged, the semi-circular shells 13 can pivot around the hinge 17. As a new implementation method, combined with the appendix Figure 3 The connector 14 is a buckle including a buckle seat 141 and a buckle ring 142. The buckle seat 141 and the buckle ring 142 are respectively installed on the mounting platform 131 at the tail end. The hinge 17 is a hinge used to connect the head ends of the two semi-circular shells 13. In this embodiment, the connector 14 is a push-button buckle; the buckle seat 141 is installed on the mounting platform 131 at the tail end 16 of the left semi-circular housing, and the buckle ring 142 is installed on the mounting platform 131 at the tail end 16 of the right semi-circular housing; during installation, simply press the buckle ring 142 down with your hand to make it snap into the buckle seat 141, and the connector 14 will lock and enter the locking state; during disassembly, you need to push the buckle ring 142 with your hand to make it pop out, so that it can be separated from the buckle seat 141, thus separating the buckle ring 142 from the buckle seat 141, simplifying the installation and disassembly steps of the light-blocking device; the hinge 17 is a door hinge, which can rotate around its central axis, and the hinge is easy to install and has a relatively low cost. The beneficial effects of this embodiment are that the connector 14 adopts a press-type buckle, which can easily realize the snap-fit ​​connection of the two semi-circular shell tail ends 16. At the same time, when the connector 14 is in the locked state, the buckle ring 142 will not pop out accidentally due to the shaking of the lamp, and the light blocking device will not fall off due to shaking when installed on the lamp. The hinge 17 adopts a hinge, and due to the characteristics of the hinge, the two semi-circular shells 13 can perform pivoting movements at various rotation angles.

[0030] As a new implementation method, combined with the appendix Figure 3The semi-circular housing 13 is a semi-circular clamp, and the side of the semi-circular housing 13 has a hollow structure 132 formed by an array of identical openings. In this embodiment, the clamp is selected as the main body of the fixing component, and quick installation and disassembly are achieved by tightening or loosening the clamp. The openings on the semi-circular housing are polygonal in shape, with a gap between each pair of adjacent openings. Multiple openings are evenly arrayed on the semi-circular housing, making the appearance of the light-blocking device more aesthetically pleasing. When there is no hollow structure 132 on the side of the semi-circular housing 13, the heat inside the lamp is difficult to dissipate through the semi-circular housing 13. The beneficial effects of this embodiment are that the semi-circular housing is a clamp, which makes the installation and disassembly of the light-blocking device more convenient; the hollow structure 132 on the semi-circular housing 13 not only makes the light-blocking device more beautiful, but also improves its heat dissipation efficiency.

[0031] A stage light, as shown in the attached image Figures 4 to 6 As shown, the device includes the light-blocking device described above, and also includes a front cover 3 located at the light-emitting end of the stage lamp. The fixing member 1 also includes a limiting part 12 that is bent inward in the direction of the lower part of the main body. The mounting part 11 and the limiting part 12 cooperate with the front cover 3 to form a bidirectional limiting. Both the mounting part 11 and the limiting part 12 are annular flat plates. The lower surface of the mounting part 11 cooperates with the upper surface of the front cover 3 to prevent the light-blocking device from sliding downward, which would cause the installation position of the light-blocking device to be too low and affect the light-blocking effect of the light-blocking device. The upper surface of the limiting part 12 cooperates with the lower surface of the front cover 3 to prevent the light-blocking device from sliding upward, which would cause the light-blocking device to slide out. The semi-circular shell 13 is located on the outside of the front cover 3 and together with the mounting part 11 and the limiting part 12, it forms the fixing member 1 to fix the light-blocking device, so that the light-blocking device can be stably installed on the lamp and is not easy to move when the lamp shakes. When the light-blocking device is installed, the mounting part 11 and the limiting part 12 on the two semi-circular shells 13 are respectively embedded in the upper or lower end of the front cover 3, which can effectively prevent the light-blocking device from shifting during use. When the light-blocking device is disassembled, the semi-circular shells 13 pivot about the hinge 17, and the mounting part 11, the limiting part 12 and the front cover 3 are separated, which releases the restriction on the light-blocking device and allows the light-blocking device to be freely disassembled.

[0032] The working principle of the technical solution of this utility model is explained as follows, as shown in the appendix. Figures 1 to 6As shown, during installation, the two semi-circular housings 13 pivot relative to each other around the hinge 17, causing the mounting part 11 and the limiting part 12 to be embedded in the front cover 3 of the lamp. Then, the snap ring 142 is snapped into the snap seat 141 and pressed, causing the connector 14 to enter a locked state. At this point, even if the lamp shakes, the light-blocking device remains firmly installed on the lamp and will not detach, thus requiring no tools for installation. During disassembly, the snap ring 142 is pushed to pop out, disengaging from the snap seat 141. At this time, one of the semi-circular housings 13 pivots relative to the other semi-circular housing 13 around the hinge 17, causing the mounting part 11 and the limiting part 12 to separate from the front cover 3. Thus, the light-blocking device can be disassembled without tools.

Claims

1. A light-blocking device, characterized in that, The device includes a ring-shaped fixing component and a light-blocking component mounted on the fixing component that can rotate within a certain angle. The fixing component includes a main body formed by two semi-circular shells connected end to end and a mounting part for mounting the light-blocking component on the top of the fixing component. The first ends of the two semi-circular shells are hinged to each other, and the last ends of the two semi-circular shells are engaged with each other. Each semi-circular shell can pivot around the other semi-circular shell through a hinge.

2. The light-blocking device according to claim 1, characterized in that, The mounting part includes a support edge arranged circumferentially along the top of the main body and an arc-shaped sliding plate. The support edge is provided with arc-shaped guide holes arranged at intervals along the circumference. The sliding plate is slidably connected to the support edge through the guide holes.

3. A light-blocking device according to claim 1, characterized in that, The maximum rotational stroke of the light-blocking component is 90°.

4. A light-blocking device according to claim 2, characterized in that, The light-blocking component includes a plurality of rectangular light-blocking blades and a rectangular mounting plate for mounting the light-blocking blades. The mounting plate is locked onto one of the sliding plates and is plugged into another sliding plate.

5. A light-blocking device according to claim 4, characterized in that, The mounting plate includes an elongated light-blocking strip on the upper surface, rectangular mounting ears on both sides of the light-blocking strip for mounting light-blocking leaves, and multiple arc-shaped limiting plates on the lower surface; the number of light-blocking strips is equal to the number of light-blocking leaves, and each limiting plate is provided with at least one limiting hole.

6. A light-blocking device according to claim 5, characterized in that, Each slide plate is provided with a limiting protrusion with a bending structure, and the limiting protrusion and its corresponding limiting hole are connected by insertion.

7. A light-blocking device according to claim 1, characterized in that, The fastener also includes a hinge and a connector. The first end of the semi-circular shell is provided with a mounting platform for installing the hinge, and the last end is provided with a mounting platform for installing the connector.

8. A light-blocking device according to claim 4, characterized in that, The connector is a buckle including a buckle base and a buckle ring. The buckle base and the buckle ring are respectively installed on the mounting platform at the tail end. The hinge is a hinge used to connect the head ends of the two semi-circular shells.

9. A light-blocking device according to claim 1, characterized in that, The semi-circular shell is a clamp, and the side of the semi-circular shell is provided with a hollow structure composed of an array of openings of the same shape.

10. A stage light, characterized in that, The device includes a light-blocking device as described in any one of claims 1 to 9, and further includes a front cover located at the light-emitting end of the stage lamp. The fixing member also includes a limiting part that is bent inward in the direction below the main body. The mounting part and the limiting part cooperate with the front cover to form a bidirectional limiting.

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