Pattern sheet replacing device and projection equipment

Abstract

The utility model discloses a pattern sheet replacing device and projection equipment, relates to the technical field of image projection, and aims to solve the problem that pattern sheets in existing projection equipment are inconvenient to replace. The pattern piece replacing device is applied to the projection equipment and comprises a fixing plate and a pattern piece set, the pattern piece set is detachably connected to the fixing plate, and the pattern piece set comprises a pattern piece used for containing a pattern to be observed. The pattern piece replacing device is used for rapidly and conveniently replacing pattern pieces, and the replacing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of image projection technology, and in particular to a pattern replacement device and projection equipment. Background Technology

[0002] In fields such as optical projection and image inspection, pattern sheets often need to be changed frequently to meet different work tasks or testing requirements. Existing methods for changing pattern sheets mostly rely on tool-based disassembly, which is cumbersome and time-consuming, significantly reducing work efficiency. Furthermore, improper tool use or limited operating space can easily damage the pattern sheet or the device itself during operation. In addition, traditional devices often lack convenient and precise adjustment mechanisms for adjusting the light emission direction of the pattern, making it difficult to meet the diverse needs of practical applications. Therefore, designing a device that enables rapid pattern sheet replacement while providing flexible and precise adjustment of the light emission direction is urgently needed. Summary of the Invention

[0003] The purpose of this invention is to provide a pattern replacement device and a projection device for quickly and conveniently replacing pattern pieces, thereby improving replacement efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A pattern sheet replacement device, applied to a projection device, includes a fixed plate and a pattern sheet assembly, the pattern sheet assembly being detachably connected to the fixed plate and used to hold pattern sheets of a pattern to be observed.

[0006] Optionally, the patterned sheet set further includes a mounting plate on which the patterned sheet can be loosely or tightly mounted.

[0007] Optionally, the mounting plate is provided with a patterned piece groove, the diameter of which is set to be larger than the diameter of the patterned piece.

[0008] Optionally, the mounting plate further includes an annular retaining spring disposed in the patterned piece groove for retractable engagement with the patterned piece.

[0009] Optionally, the mounting plate further includes a rotatable patterned disc, which is concentrically arranged with the annular retaining spring, and the inner ring of the patterned disc is connected to the annular retaining spring to drive the patterned piece to rotate.

[0010] Optionally, the outer ring of the patterned disc is provided with a rotating gear, which is used for manual rotation to drive the patterned piece to rotate.

[0011] Optionally, a bent plate extends vertically from one side of the mounting plate, and the bent plate is detachably connected to the side of the fixing plate.

[0012] Optionally, the side of the fixing plate is provided with screw holes, and the bending plate is provided with captive screws corresponding to the screw holes. The screw holes and captive screws cooperate to realize the detachable connection between the pattern group and the fixing plate.

[0013] Compared with existing technologies, the pattern replacement device provided by this utility model has a simple structure. Through the use of non-removable screws and ring springs, it enables quick and convenient installation and removal of pattern pieces and the pattern pieces themselves, greatly improving replacement efficiency. At the same time, the ring springs effectively ensure the stability of the pattern pieces during installation, preventing displacement or shaking during projection, thereby improving the clarity and accuracy of the projected image.

[0014] This utility model also provides a projection device, including a bracket, a housing, and the aforementioned pattern replacement device, wherein the pattern replacement device is disposed on the bracket, and the housing covers the outside of the bracket.

[0015] Optionally, the outer casing has a window corresponding to the pattern changing device, which allows the pattern to enter and exit the outer casing.

[0016] Compared with the prior art, the beneficial effects of the projection device provided by this utility model are the same as those described in the above technical solutions, and will not be repeated here. Attached Figure Description

[0017] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0018] Figure 1 This is a schematic diagram of the pattern replacement device provided in an embodiment of the present invention.

[0019] Figure 2 A schematic diagram of the projection device provided in an embodiment of this utility model.

[0020] Figure label:

[0021] 100-Pattern replacement device; 1-Fixing plate; 2-Pattern group; 20-Pattern; 21-Mounting plate; 22-Pattern slot; 23-Ring snap ring; 24-Pattern reel; 25-Rotating gear; 26-Bending plate; 27-Irremovable screw; 200-Projection equipment. Detailed Implementation

[0022] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Please see Figure 1 and Figure 2 The pattern sheet replacement device 100 provided in this embodiment of the utility model includes a fixing plate 1 and a pattern sheet group 2, wherein the pattern sheet group 2 is detachably connected to the fixing plate 1, and the pattern sheet group 2 includes a pattern sheet 20 for accommodating the pattern to be observed.

[0028] In this application, the pattern piece group 2 also includes a mounting plate 21, on which the pattern piece 20 can be loosely or tightly mounted.

[0029] Specifically, the mounting plate 21 is provided with a patterned piece groove 22, the diameter of which is set to be larger than the diameter of the patterned piece 20.

[0030] Furthermore, the mounting plate 21 also includes an annular retaining spring 23, which is disposed in the patterned piece groove 22 for loosely or tightly engaging with the patterned piece 20.

[0031] In this application, the mounting plate 21 also includes a rotatable patterned disc 24, which is concentrically arranged with the annular retaining spring 23, and the inner ring of the patterned disc 24 is connected to the annular retaining spring 23 to drive the patterned piece 20 to rotate.

[0032] Furthermore, the outer ring of the patterned disc 23 is provided with a rotating gear 25, which is used for manual rotation to drive the patterned piece 20 to rotate.

[0033] For detachable connection to the fixing plate 1, a bent plate 26 extends vertically along one side of the mounting plate 21, the bent plate 26 being detachably connected to the side of the fixing plate 1.

[0034] In one embodiment provided in this application, the side of the fixing plate 1 is provided with a screw hole, and the bending plate 26 is provided with a captive screw 27 corresponding to the screw hole. The screw hole and the captive screw 27 cooperate to realize the detachable connection between the pattern group and the fixing plate 1.

[0035] In another embodiment provided in this application, magnetic structures are provided on the side of the fixing plate 1 and the bending plate 26 respectively, so that the fixing plate 1 and the bending plate 26 can be quickly disassembled through the magnetic structures.

[0036] In practice: Place the pattern piece 20 in the pattern piece slot 22. Since the diameter of the pattern piece slot 22 is larger than the diameter of the pattern piece 20, the pattern piece 20 can be easily inserted. Then align the pattern piece 20 with the annular retaining spring 23 and press gently to engage the edge of the pattern piece 20 with the annular retaining spring 23. The elastic design of the annular retaining spring 23 provides a certain degree of tightness, ensuring that the pattern piece 20 is firmly fixed to the mounting plate 21 and is easy to remove when needed. Align the bent plate 26 of the pattern piece assembly 2 (with the pattern piece 20 assembled) with the side of the fixing plate 1. The side of the fixing plate 1 has screw holes corresponding to the captive screws 27. Screw the captive screws 27 into the screw holes. By rotating the captive screws 27, the bent plate 26 is tightly connected to the fixing plate 1, thus firmly installing the pattern piece assembly 2 onto the fixing plate 1. When tightening the captive screws 27, be careful with the force applied. To avoid damage to the mounting plate 21 or fixing plate 1 due to excessive force, place the pattern replacement device 100 on the bracket and fix it to the bracket using a suitable fixing method (such as bolt connection, snap connection, etc., which can be determined according to the actual design) to ensure that it is firmly installed and will not shake during equipment operation. When it is necessary to adjust the pattern light emission direction, the operator can directly rotate the rotating gear 25 by hand or with the help of a special tool (such as a gear wrench). The rotation of the rotating gear 25 will drive the pattern reel 24 to rotate. Since the evenly distributed balls inside the pattern reel 24 can effectively reduce friction, the pattern reel 24 can rotate smoothly and stably. During the rotation of the pattern reel 24, observe the change in the pattern light emission direction and adjust the rotation angle and direction of the rotating gear 25 precisely according to the actual needs until the pattern light emission direction meets the usage requirements.

[0037] As can be seen from the structure and specific implementation process of the pattern replacement device 100, the pattern replacement device 100 has a simple structure. Through the use of captive screws 27 and ring springs 23, it enables quick and convenient installation and removal of the pattern group 2 and the pattern 20, greatly improving replacement efficiency. At the same time, the ring springs 23 effectively ensure the stability of the pattern 20 during installation, preventing displacement or shaking of the pattern 20 during projection, thereby improving the clarity and accuracy of the projected pattern.

[0038] This utility model embodiment also provides a projection device 200, including a bracket, a housing, and the above-mentioned pattern replacement device 100. The pattern replacement device 100 is disposed on the bracket, and the housing covers the outside of the bracket.

[0039] Furthermore, the outer casing has a window, which corresponds to the pattern piece changing device 100, for the pattern piece 20 to enter and exit the outer casing.

[0040] Specifically, the outer casing is placed on the outside of the bracket, so that the window on the outer casing corresponds to the pattern piece changing device 100. The position and size of the window are designed to facilitate the changing of the pattern piece 20.

[0041] Disassembly and assembly process:

[0042] When the pattern piece 20 needs to be replaced, there is no need to disassemble the outer casing. Simply loosen the captive screw 27 by hand through the window on the outer casing. The captive screw 27 is designed so that it will not separate from the bending plate 26 after being loosened, thus preventing the screw from being lost.

[0043] Remove pattern piece 2 from the fixing plate 1 and place it on a clean and safe workbench.

[0044] Gently press the pattern piece 20 with your hand to disengage it from the ring spring 23, and then remove the old pattern piece 20.

[0045] The new pattern piece 20 is installed into the pattern piece slot 22 and the ring retainer 23 of the mounting plate 21 according to the assembly steps of the pattern piece group 2 described above.

[0046] Reinstall the pattern piece group 2 with the new pattern piece 20 installed onto the fixing plate 1, tighten the non-removable screw 27, and complete the replacement operation of the pattern piece 20.

[0047] Compared with the prior art, the beneficial effects of the projection device 200 provided in this embodiment of the present invention are the same as the beneficial effects of the high-profile replacement device provided in the above embodiments, and will not be repeated here.

[0048] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0049] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A pattern changing device, applied to a projection device, characterized in that, It includes a fixed plate and a pattern sheet assembly, the pattern sheet assembly being detachably connected to the fixed plate, the pattern sheet assembly including pattern sheets for accommodating the pattern to be observed.

2. The pattern sheet replacing device according to claim 1, characterized by The patterned sheet set also includes a mounting plate on which the patterned sheets can be loosely or tightly mounted.

3. The pattern sheet replacing device according to claim 2, characterized by The mounting plate is provided with a patterned plate groove, and the diameter of the patterned plate groove is set to be larger than the diameter of the patterned plate.

4. The pattern sheet replacing device according to claim 3, characterized by The mounting plate also includes an annular retaining spring, which is disposed in the patterned piece groove for loosely or loosely engaging with the patterned piece.

5. The pattern sheet replacing device according to claim 4, characterized by The mounting plate also includes a rotatable patterned disc, which is concentrically arranged with the annular retaining spring, and the inner ring of the patterned disc is connected to the annular retaining spring to drive the patterned piece to rotate.

6. The pattern sheet replacing device according to claim 5, characterized by The outer ring of the patterned disc is provided with a rotating gear, which is used for manual rotation to drive the patterned piece to rotate.

7. The pattern sheet replacing device according to claim 2, characterized by A bent plate extends vertically from one side of the mounting plate, and the bent plate is detachably connected to the side of the fixing plate.

8. The pattern sheet replacing device according to claim 7, characterized by The side of the fixing plate is provided with screw holes, and the bending plate is provided with captive screws corresponding to the screw holes. The screw holes and captive screws cooperate to realize the detachable connection between the pattern group and the fixing plate.

9. A projection apparatus, characterized by, The device includes a support, a housing, and a pattern replacement device as described in any one of claims 1-8, wherein the pattern replacement device is disposed on the support and the housing covers the outside of the support.

10. The projection apparatus according to claim 9, wherein, The outer casing has a window, which corresponds to the pattern changing device and is used to allow the pattern to enter and exit the outer casing.

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