An auxiliary sliding device for the CMY structure of a lighting fixture

Abstract

A kind of auxiliary sliding device for the CMY structure of a lamp, comprising a CMY sheet, a slider, a belt and a belt fixing block. The CMY sheet is adhered to the slider, and the belt is fixed on the slider through the belt fixing block. It is characterized in that the slider successively includes an adhesion edge, a first bushing, a connecting edge and a second bushing, and guide rod holes are provided in both the first bushing and the second bushing; an installation hole is provided in the connecting edge; the belt fixing block includes a tooth groove meshing with the belt on one side and a clamping corner at the bottom; the belt is installed between the tooth groove and the first bushing; the bottom surface of the belt fixing block is fixed on the installation hole through the clamping corner, and the side of the belt fixing block with the tooth groove is in close contact with the first bushing.

Description

Technical Field

[0001] The present invention belongs to the field of stage lighting fixtures, and particularly relates to an auxiliary sliding device for a CMY structure of a lighting fixture. Background Art

[0002] Stage lighting, also known as "stage illumination" and abbreviated as "lighting", is one of the means of stage art modeling. By using stage lighting equipment (such as lighting fixtures, projectors, control systems, etc.) and technical means, along with the development of the plot, light colors and their changes are used to display the environment, create atmosphere, highlight the central characters, create a sense of stage space and time, shape the external image of the stage performance, and provide necessary lighting effects.

[0003] In order to achieve gorgeous color effects, CMY color mixing components are often used to diversify the colors of stage lighting. The auxiliary sliding device in the existing CMY color mixing components has the following problems:

[0004] 1. In order to pursue the stability of the CMY plates themselves, the auxiliary sliding device generally adopts the mode of two guide rods respectively passing through two bushings, that is, the two guide rods support the CMY plates. However, this penetration method is likely to cause another problem, that is, the asynchronous movement of the two bushings on different guide rods during the sliding process, resulting in jamming or deviation of the auxiliary sliding device;

[0005] 2. The CMY color mixing plates are glass color plates, which are relatively expensive, with a cost of 40 yuan to 80 yuan per single piece. 4 - 8 pieces are used in the entire CMY color mixing component, and the CMY color mixing plates are directly pasted on the auxiliary sliding device. Due to the small pasting area and the gravity of the CMY plates themselves, glue with a relatively high viscosity must be used for pasting, resulting in the problem that the CMY plates are very difficult to disassemble during the maintenance process. Currently, the CMY plates are generally carefully disassembled slowly with a blade, but the probability of the CMY plates bursting during the disassembly process is still as high as more than 30%. The probability of the CMY plates of the auxiliary sliding device with a very small pasting area bursting during the disassembly process is even as high as more than 50%, and the maintenance cost is very high;

[0006] 3. The fixing method of the belt generally uses two flat parts to clamp the belt in the middle and then locks the two flat parts together. This method requires pressing the belt, and pressing the belt with two flat parts or drilling through the belt with screws and then locking the two flat parts will cause damage to the belt. Summary of the Invention

[0007] One of the objectives of the present invention is to reduce the contact area between the second bushing and the guide rod by reducing the length of the second bushing, thereby reducing the resistance during the operation of the auxiliary sliding device and achieving the problem of reducing and avoiding jamming;

[0008] The second object of the present invention is to provide a threaded hole with teeth on the pasting edge, so that when it is necessary to disassemble the CMY color mixing sheet, the screw squeezing method can be directly adopted to simply and quickly remove the CMY color mixing sheet without damaging the CMY color mixing sheet.

[0009] The third object of the present invention is to realize the natural tooth engagement and pressing of the belt by using a belt mounting block with tooth grooves, without the need for perforation or forced flattening, achieving the effect of no damage to the belt.

[0010] A CMY structure auxiliary sliding device for a lamp, comprising a CMY sheet, a slider, a belt and a belt fixing block. The CMY sheet is pasted on the slider, and the belt is fixed on the slider through the belt fixing block. It is characterized in that the slider sequentially includes a pasting edge, a first bushing, a connecting edge and a second bushing. Guide rod holes are provided in both the first bushing and the second bushing; an installation hole is provided in the connecting edge; the belt fixing block includes tooth grooves on one side that engage with the belt and a clamping corner at the bottom; the belt is installed between the tooth grooves and the first bushing; the bottom surface of the belt fixing block is fixed in the installation hole through the clamping corner, and the side of the belt fixing block with tooth grooves is closely attached to the first bushing.

[0011] Further, the length of the second bushing is less than the length of the first bushing.

[0012] Specifically, the relationship between the length L2 of the second bushing and the length of the first bushing is 0.4L1 ≤ L2 ≤ 0.6L1.

[0013] Further, the CMY sheet is fixed on the pasting edge by dispensing glue.

[0014] Further, one end of the CMY sheet is closely attached to the first bushing.

[0015] Still further, at least two threaded holes with teeth are provided on the pasting edge.

[0016] Details: The relationship between the distance D from the threaded hole to the upper surface of the pasting edge and the diameter Φ of the threaded hole is D < Φ.

[0017] Even more details: The relationship between the distance H from the threaded holes on the left and right sides of the pasting edge to the left and right side surfaces of the pasting edge and the diameter Φ of the threaded hole is H < 2Φ.

[0018] Further, the clamping corner includes a vertical part and a barb part. Description of the Drawings

[0019] Figure 1 is a three-dimensional schematic diagram of the present invention.

[0020] Figure 2 is an exploded schematic diagram of the present invention.

[0021] Figure 3 It is a three-dimensional schematic diagram of the slider.

[0022] Figure 4 It is a three-dimensional schematic diagram of the belt fixing block.

[0023] Figure 5 It is a front projection view schematic diagram of the slider.

[0024] Figure 6 It is a schematic diagram of the CMY film pasting position.

[0025] Figure 7 It is a schematic diagram of the screw hole size comparison.

[0026] Explanation of the reference numerals in the figure: 1 - CMY film; 2 - slider; 21 - pasting edge; 211 - screw hole; 22 - bushing one; 23 - connecting edge; 231 - mounting hole; 24 - bushing two; 25 - guide rod hole; 3 - belt; 4 - belt fixing block; 41 - tooth groove; 42 - clamping corner; 421 - vertical part; 422 - barb part. Specific implementation mode

[0027] The innovative points of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] As shown in Figure 1 , 2, 3, 4, a CMY structure auxiliary sliding device for a lamp includes a CMY film 1, a slider 2, a belt 3 and a belt fixing block 4. The CMY film 1 is pasted on the slider 2, and the belt 3 is fixed on the slider 2 through the belt fixing block 4;

[0029] Innovatively, the slider 2 sequentially includes a pasting edge 21, a bushing one 22, a connecting edge 23 and a bushing two 24. Guide rod holes 25 are provided in both the bushing one 22 and the bushing two 24; The connecting edge 23 is provided with a mounting hole 231; The belt fixing block 4 includes a tooth groove 31 on one side that meshes with the belt and a clamping corner 42 at the bottom; The belt 3 is installed between the tooth groove 41 and the bushing one 22; The bottom surface of the belt fixing block 4 is fixed on the mounting hole 231 through the clamping corner 42, and the side of the tooth groove 41 of the belt fixing block 4 is in close contact with the bushing one 22.

[0030] The beneficial effect of this embodiment is that the belt fixing block 4 adopts the tooth groove 31 design. The tooth groove 31 is in a meshing relationship with the teeth on the belt 3. Therefore, the belt 3 can be directly attached to the tooth groove 31 of the belt fixing block 4. Then, the belt fixing block 4 is installed in the two mounting holes 231 on the connecting edge 23 near the first bushing 22 through the two positioning corners 42 at the bottom. At the same time, the side surface of the belt fixing block 4 is in close contact with the first bushing 22, and the belt 3 is located between the tooth groove 31 and the first bushing, thus realizing the natural meshing and pressing of the belt. This pressing method does not require any screw locking and will not cause any pressure or damage to the teeth on the surface of the belt.

[0031] As a preferred embodiment, as shown in the appendix Figure 5 shown, the length of the second bushing 24 is less than the length of the first bushing 22. More preferably, the relationship between the length L2 of the second bushing 24 and the length of the first bushing 22 is 0.4L1 ≤ L2 ≤ 0.6L1. As can be understood by those skilled in the art, in the traditional CMY structure auxiliary sliding device, the lengths of the first bushing 22 and the second bushing 24 on the slider 2 are equal. A guide rod passes through each bushing from the guide rod hole 25. The slider 2 slides back and forth between two parallel guide rods under the action of the belt 3. When the slider tilts during the back-and-forth sliding process, and the first bushing 22 and the second bushing 24 have lengths, once there is a jam in the guide rod hole 25 of the first bushing 22, the jam in the guide rod hole of the second bushing 24 will be aggravated, thus affecting the smooth operation of the slider. It is easy to understand that the smaller the length of the second bushing 24, the lower the degree of aggravation of the jam. In theory, if the length of the second bushing 24 approaches 0, then only the first bushing 22 affects the smooth operation of the slider. However, at this time, due to the gravitational force of the CMY sheet 1 pasted on the pasting edge 21, if the slider 2 only has the first bushing 22, it cannot stably support the CMY sheet 1. Therefore, both the first bushing and the second bushing must exist. Under the condition of meeting the condition of reducing the jamming effect brought by the second bushing 24 and ensuring the stable support of the CMY sheet 1, the relationship between the length L2 of the second bushing 24 and the length of the first bushing 22 being 0.4L1 ≤ L2 ≤ 0.6L1 is relatively optimal. The practical meanings of L2 = 0.4L1 or L2 = 0.4L1 are the same.

[0032] As a preferred embodiment, as shown in the appendix Figure 6As shown, since the area of the CMY sheet 1 is relatively large and its gravity is relatively heavy, while the area of the pasting edge 21 is relatively small. To better support the gravity of the CMY sheet 1, as can be understood by those skilled in the art, the CMY sheet 1 is fixed on the pasting edge 21 by dispensing glue. It is most suitable for the CMY sheet 1 to be closely pasted against the first bushing 22. At the same time, the glue used generally has very strong adhesiveness, and since the CMY sheet 1 is generally close to the light source, the glue is also heat-resistant. In this way, although the stability of the CMY sheet 1 is ensured, it is very difficult to repair. Currently, in the industry, the mode of slowly cutting with a blade is used, but the bursting rate of the CMY sheet 1 is still as high as more than 30% - 50%. In this embodiment, at least two toothed screw holes 211 are opened on the pasting edge 21. When it is necessary to disassemble the CM sheet 1, two screws are inserted into the two toothed screw holes, and the two screws are synchronously and gradually screwed. Through the extrusion action of the two points, the CMY sheet 1 is first debonded from the outer surface of the pasting edge 21, and then it can be easily removed by hand.

[0033] The principle of this embodiment is briefly described as follows. Suppose the external force required for each adhesive point to be debonded is N. Since the CMY sheet 1 is pasted on the entire pasting edge 21, whether by hand or by knife, the external force required is much greater than N due to the relationship of the stress area. When N is too large, since the CMY sheet 1 is made of glass material, it will directly break; when using screws for debonding, it debonds in the form of stress points rather than stress surfaces, so it is much more labor-saving, and thus it can be ensured that the CMY sheet is basically not broken during the disassembly process.

[0034] More preferably, as shown in the appendix Figure 7 The relationship between the distance D between the screw hole 211 and the upper surface of the pasting edge 21 and the diameter Φ of the screw hole is D < Φ. At this time, as can be understood from life experience, when the single points at the two screw holes 211 are synchronously stressed for debonding, because it will affect a certain range around the screw hole 211, the upper surface part of the pasting edge 21 can be synchronously debonded, and most of the CMY sheet 1 can be synchronously debonded; if D > Φ, that is, when the distance between the screw hole 211 and the upper surface of the pasting edge 21 is too large, the influence range of the single point stress debonding at the screw hole 211 is limited, so the part far from the screw hole 211 still cannot be debonded. The CMY sheet still cannot be disassembled.

[0035] At the same time, the relationship between the distance H between the screw holes 211 on the left and right sides of the pasting edge 21 and the left and right side surfaces of the pasting edge 21 and the diameter Φ of the screw hole is H < 2Φ. In the appendix Figure 7 That is, H1 < 2Φ and H2 < 2Φ. The principle is the same as described above, that is, when the single points at the two screw holes 211 are synchronously stressed for debonding, because it can only affect a certain range around the screw hole 211, when the range is too large, the CMY sheet 1 still cannot be disassembled.

[0036] As a preferred embodiment, as shown in the appendix Figure 4 As shown, the clamping corner 42 includes a vertical portion 421 and a barb portion 422. The beneficial effect of this embodiment is that the belt fixing block 4 does not need to be attached with screws, and can be automatically fixed only by inserting it into the mounting hole 231 of the connecting edge 23, and can be easily disassembled and assembled.

[0037] An auxiliary sliding device for the CMY structure of a lamp in the present invention adopts improvements and innovations in the structural details, and simultaneously solves the three major problems of difficult disassembly of the CMY sheet 1, jamming of the slider 2, troublesome disassembly and assembly of the belt fixing block and damage to the belt, realizes technological innovation, and has great practicality.

[0038] The above embodiments are only further descriptions of the technical solutions of the present invention, rather than limiting the protection scope of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

Claims

1. An auxiliary sliding device for a CMY structure of a lighting fixture, comprising a CMY sheet, a slider, a belt and a belt fixing block, wherein the CMY sheet is adhered to the slider, and the belt is fixed to the slider through the belt fixing block, and is characterized in that, The slider sequentially includes a pasting edge, a first bushing, a connecting edge, and a second bushing. Guide rod holes are provided in both the first bushing and the second bushing; an installation hole is provided in the connecting edge; the belt fixing block includes a tooth groove engaged with the belt on one side and a clamping corner at the bottom; the belt is installed between the tooth groove and the first bushing; the bottom surface of the belt fixing block is fixed on the installation hole through the clamping corner, and the side of the belt fixing block with the tooth groove is in close contact with the first bushing.

2. The auxiliary sliding device for the CMY structure of a lamp according to claim 1, characterized in that The length of the second bushing is less than the length of the first bushing.

3. The auxiliary sliding device for the CMY structure of a lamp according to claim 2, wherein, The relationship between the length L2 of the second bushing and the length of the first bushing is 0.4 L1 ≤ L2 ≤ 0.6 L1.

4. A lighting fixture CMY structure auxiliary sliding device according to claim 2, characterized in that, The CMY sheet is fixed on the pasting edge by dotting.

5. The auxiliary sliding device for the CMY structure of a lamp according to claim 4, wherein One end of the CMY sheet is in close contact with the first bushing.

6. The auxiliary sliding device for the CMY structure of a lamp according to claim 4, characterized in that, At least two toothed screw holes are provided on the pasting edge.

7. An auxiliary sliding device for a CMY structure of a lamp according to claim 6, characterized in that, The relationship between the distance D from the screw hole to the upper surface of the pasting edge and the diameter Φ of the screw hole is D < Φ.

8. An auxiliary sliding device for the CMY structure of a lamp according to claim 7, characterized in that, The relationship between the distance H from the screw holes on the left and right sides of the pasting edge to the left and right side surfaces of the pasting edge and the diameter Φ of the screw hole is H < 2Φ.

9. The auxiliary sliding device for the CMY structure of a lamp according to claim 1, characterized in that, The clamping corner includes a vertical part and a barb part.

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