Large-angle mechanism suitable for laser projectors

Abstract

The utility model relates to a large angle mechanism suitable for laser line projector, including swing body, and the swing body inside reservation has the wiring channel, horizontal laser tube seat installs in swing body below one side, vertical laser tube seat installs on the angle adjustment base of swing body top, horizontal laser tube seat, vertical laser tube seat all with swing body adopt detachable mechanism link to each other, horizontal laser tube seat, vertical laser tube seat all install in with the conical mirror device, and the cable of conical mirror device configuration is worn in wiring channel. Adopt horizontal / vertical laser tube seat and the detachable cooperation of swing body, can realize whole mechanism and the nimble adaptation of existing line projector main part, is convenient for the maintenance or part replacement to existing line projector. Meanwhile, the overall assembly process is simplified, and the subsequent maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to a large-angle mechanism, and more particularly to a large-angle mechanism suitable for laser line projectors. Background Technology

[0002] As a commonly used measuring tool in fields such as architecture and decoration, the core function of a laser line projector is to project a horizontal or vertical laser fan-shaped area through optical components. The ability to project a large-angle line and the ease of structural assembly are key indicators for measuring its performance.

[0003] For example, a conical mirror reflector assembly of a laser beam projector disclosed in the prior art improves the installation stability and light reflection range of the conical mirror through an interference fit structure between the conical mirror, the transparent tube, and the positioning ring. However, it does not involve a detachable connection design between the laser tube holder and the supporting components, requiring disassembly of the entire structure for subsequent maintenance, resulting in insufficient operational convenience. Furthermore, regarding the connection between the laser and the pendulum and the overall assembly adjustment, existing related technologies mostly focus on reducing the complexity of adjustment, but generally lack a detachable connection mechanism design for the laser tube holder that is adaptable to multiple scenarios, and do not provide a systematic solution for the concealed protection and ease of maintenance of cables.

[0004] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a large-angle mechanism suitable for laser line projectors, making it more valuable for industrial applications. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a large-angle mechanism suitable for laser line projectors.

[0006] This utility model discloses a large-angle mechanism for laser line projectors, comprising a pendulum body, a horizontal laser tube holder, a vertical laser tube holder, and a conical mirror device. The pendulum body has an integrated adjusting bearing at its top, and an angle adjusting base mounted on the adjusting bearing. A cable routing channel is pre-installed inside the pendulum body. The horizontal laser tube holder is installed on one side below the pendulum body. The vertical laser tube holder is installed on the angle adjusting base at the top of the pendulum body. Both the horizontal and vertical laser tube holders are detachably connected to the pendulum body. A conical mirror device is installed inside both the horizontal and vertical laser tube holders, and the cable of the conical mirror device passes through the cable routing channel.

[0007] Furthermore, in the aforementioned large-angle mechanism applicable to laser line projectors, the detachable mechanism is a locking clamp or a locking bolt; gaskets are distributed between the horizontal laser tube base and the pendulum body; and gaskets are distributed between the vertical laser tube base and the pendulum body.

[0008] Furthermore, in the aforementioned wide-angle mechanism applicable to laser line projectors, the gasket is either a thin plastic gasket or a thickened ceramic gasket.

[0009] Furthermore, in the aforementioned large-angle mechanism applicable to laser line projectors, the detachable mechanism includes a mounting base connected to the pendulum body; mounting blocks are distributed on the mounting base, the mounting blocks are connected to the pendulum body by locking bolts, positioning cylinders are distributed on the mounting base, the conical mirror device is installed inside the positioning cylinders, and several positioning screws are distributed on the positioning cylinders, the positioning screws contacting the conical mirror device.

[0010] Furthermore, in the aforementioned large-angle mechanism applicable to laser line projectors, the conical mirror device includes a device body, the device body is covered with a protective shell, the conical mirror body is mounted on the device body, and the conical surface of the conical mirror body is coated with a metal coating or a dielectric film.

[0011] Furthermore, in the aforementioned large-angle mechanism applicable to laser line projectors, the reflection angle of the conical mirror body is 45°.

[0012] Furthermore, in the aforementioned large-angle mechanism applicable to laser line projectors, a bearing base is installed below the pendulum body; a connecting flange is installed below the bearing base.

[0013] Furthermore, in the aforementioned wide-angle mechanism applicable to laser line projectors, the cable sheath is provided with a cable bundle sleeve.

[0014] Furthermore, in the aforementioned wide-angle mechanism applicable to laser line projectors, a terminal block is installed on the cable, and the terminal block is covered with a waterproof sheath.

[0015] By means of the above solution, this utility model has at least the following advantages: 1. The pendulum body is made of die-cast aluminum, which reduces overall weight while ensuring structural strength, and the anti-slip textured design on the outer surface improves the ease of assembly and operation. Combined with the detachable connection structure of the bearing base and connecting flange at the bottom of the pendulum body, and the detachable fit between the horizontal / vertical laser tube holder and the pendulum body, the entire mechanism can be flexibly adapted to existing line projectors, facilitating maintenance or component replacement of existing line projectors. At the same time, it simplifies the overall assembly process and reduces subsequent maintenance costs.

[0016] 2. The outer protective shell of the device is made of copper or aluminum, which can specifically meet the requirements of heat conduction and heat dissipation or lightweighting; the conical surface of the conical mirror body is coated with a high-reflectivity metal coating or dielectric film, which effectively reduces laser energy loss. Combined with the 45° reflection angle design, the laser is reflected to form a large-angle fan with a coverage angle of not less than 180°, which can ensure sufficient brightness of the projected laser and achieve a wide range of line projection in the horizontal or vertical directions.

[0017] 3. High assembly flexibility and strong controllability of projection accuracy: To meet the needs of different assembly scenarios, this mechanism offers two detachable connection implementation methods. A suitable detachable connection mechanism can be selected based on subsequent disassembly and maintenance requirements.

[0018] 4. Excellent cable protection and power supply stability, extending service life: The mechanism utilizes a pre-reserved cable routing channel within the pendulum body for concealed cable arrangement. Combined with elastic rubber cable harnesses to secure the cables, this prevents friction and wear between the cables and the inner wall of the channel during pendulum movement. Furthermore, a silicone waterproof sleeve is added to the cable end terminals to effectively prevent dust and moisture intrusion, preventing poor circuit contact. This cable protection design not only ensures the stability of the power supply to the conical mirror device but also reduces potential cable-related faults, indirectly extending the service life of the entire mechanism.

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the large-angle mechanism applicable to laser line projectors.

[0021] The meanings of the labels in the figures are as follows.

[0022] Detailed Implementation The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0023] like Figure 1This large-angle mechanism for laser line projectors includes a pendulum body 1, a horizontal laser tube holder 2, a vertical laser tube holder 3, and a conical mirror device 4. Its unique feature is that the pendulum body 1 is made of die-cast aluminum, reducing overall weight while maintaining structural strength. Anti-slip textures can be provided on its outer surface to prevent hand slippage during assembly and use. The pendulum body 1 forms the load-bearing component, and its internal machining provides a through-path for the cable of the conical mirror device 4. An adjusting bearing 11 is integrated at the top of the pendulum body 1, on which an angle adjustment base 12 is mounted. Furthermore, a bearing base 9 is installed below the pendulum body 1, which is fixedly connected to the bottom of the pendulum body 1 with screws. A connecting flange 10 is further installed below the bearing base 9, allowing for a detachable connection between the entire large-angle mechanism and the main body of the line projector for subsequent maintenance or replacement. Therefore, the overall structure is simple, allowing for the repair and replacement of existing line projectors. Furthermore, the conical mirror device 4 enables the projection of both horizontal and vertical lines with large angles, effectively expanding its application range. Considering the need for layout adjustment of the bidirectional conical mirror device 4, both the horizontal laser tube holder 2 and the vertical laser tube holder 3 are connected to the pendulum body 1 via a detachable mechanism. Specifically, the horizontal laser tube holder 2 is installed at the lower end of the bearing hole of the pendulum body 1, located on one side below the pendulum body 1. Its installation height maintains a preset distance from the central axis of the bearing hole of the pendulum body 1, ensuring that the conical mirror device 4 on the horizontal laser tube holder 2 can project a horizontal laser fan-shaped area. Simultaneously, the vertical laser tube holder 3 is installed on the angle adjustment base 12 at the top of the pendulum body 1. Its default installation direction is consistent with the vertical axis of the pendulum body 1, and its angle can be adjusted appropriately as needed, allowing the conical mirror device 4 on the vertical laser tube holder 3 to project a vertical laser fan-shaped area.

[0024] In this embodiment, there are two preferred implementations of the detachable mechanism of the horizontal laser tube holder 2, the vertical laser tube holder 3, and the pendulum body 1 to adapt to different assembly scenario requirements.

[0025] Example 1: A locking clamp / locking bolt combined with a gasket structure is used. The detachable mechanism is either a locking clamp or a locking bolt. When using a locking bolt, bolt holes are provided at corresponding positions on the horizontal laser tube base 2 and the swing body 1, and bolt holes are also provided at corresponding positions on the top of the vertical laser tube base 3 and the swing body 1. The locking bolt passes through the bolt holes to fix the two. When using a locking clamp, the locking clamp includes two semi-annular clips, which are joined together by bolts to clamp the laser tube base to the preset installation position on the swing body 1. At the same time, gaskets are distributed between the horizontal laser tube base 2 and the swing body 1, and gaskets are also distributed between the vertical laser tube base 3 and the swing body 1. These gaskets are either thin plastic gaskets or thickened ceramic gaskets. During implementation, thin plastic gaskets are suitable for scenarios with small installation gap requirements and have lower costs. Thickened ceramic gaskets are suitable for scenarios where the projector may be in a high-temperature environment, have better high-temperature resistance, and can reduce vibration transmission between the laser tube base and the swing body 1.

[0026] Implementation Method Two: A mounting base with a positioning cylinder 6. Specifically, the detachable mechanism includes a mounting base connected to the pendulum body 1. Specifically, one side of the mounting base is fitted against the pendulum body 1, and mounting blocks 5 are distributed on the mounting base. The mounting blocks 5 are connected to the pendulum body 1 by locking bolts. Considering the stability of the connection, a positioning boss is provided on the end face of the mounting block 5 that contacts the pendulum body 1, and a positioning groove is provided at the corresponding position on the pendulum body 1. The positioning boss and the positioning groove cooperate to achieve rapid positioning of the mounting base, avoiding misalignment during assembly. Simultaneously, a positioning cylinder 6 is distributed on the other side of the mounting base. The conical mirror device 4 is installed inside the positioning cylinder 6, and the inner wall of the positioning cylinder 6 is fitted against the outer wall of the conical mirror device 4, providing initial positioning. Furthermore, several positioning screws 7 are distributed on the positioning cylinder 6, arranged radially along the positioning cylinder 6, and the ends of the positioning screws 7 contact the conical mirror device 4. Therefore, by adjusting the screw depth of the positioning screw 7, the position of the conical mirror device 4 in the positioning cylinder 6 can be finely adjusted to ensure the accuracy of the laser projection angle, and it also facilitates the subsequent disassembly, maintenance or replacement of the conical mirror device 4.

[0027] Furthermore, the conical mirror device 4 can integrate a laser emitting component internally, depending on actual needs. The device body is encased in a protective shell 8, which is made of copper or aluminum. The copper shell 8 has better thermal conductivity, effectively dissipating the heat generated by the laser emitting component during operation. The aluminum shell 8, while maintaining a certain level of thermal conductivity, is lighter, meeting the lightweight requirements of the pendulum 1. Simultaneously, a conical mirror body is mounted on the device body, corresponding to the light-emitting end of the laser emitting component. The point laser emitted by the laser emitting component can be directly projected onto the conical surface of the conical mirror body. Moreover, the conical surface of the conical mirror body is coated with a metal layer or a dielectric film, and the reflectivity of this coating or dielectric film is ≥98%. Therefore, this high reflectivity design reduces energy loss of the laser at the conical surface, ensuring sufficient brightness of the projected laser fan. Furthermore, the conical mirror has a reflection angle of 45°. This reflection angle allows the laser to be reflected by the conical surface to form a large-angle fan with a coverage angle of not less than 180°, thereby achieving wide-range projection in the horizontal or vertical direction and meeting the needs of large-area coverage in scenarios such as wall decoration and equipment installation.

[0028] In practical implementation, the cable of the conical mirror device 4 must pass through the internal wiring channel of the pendulum body 1 to avoid the cable being exposed and thus abrasion or tangling. A cable tie sleeve made of elastic rubber is provided over the cable, and the cable is secured within the wiring channel of the pendulum body 1. In this way, the elastic cable tie sleeve not only protects the cable from friction and abrasion caused by friction between the cable and the inner wall of the wiring channel when the pendulum body 1 swings, but also accommodates the slight expansion and contraction of the cable due to temperature changes.

[0029] Furthermore, a terminal block is installed at the end of the cable furthest from the conical mirror device 4, and the terminal block is covered with a waterproof sleeve. During implementation, the waterproof sleeve is made of silicone to prevent dust and moisture from the projector's operating environment from entering the terminal block and avoiding poor circuit contact. The cable is connected to the projector's main circuit through the terminal block, providing power to the conical mirror device 4. This detachable wiring structure facilitates subsequent replacement of the cable or the conical mirror device 4 without disassembling the entire pendulum body 1, further improving maintenance convenience.

[0030] Furthermore, the directions or positional relationships described in this utility model are based on the directions or positional relationships shown in the accompanying drawings. They are only for the purpose of facilitating the description of this utility model and simplifying the description, and are not intended to indicate or imply that the device or structure referred to must have a specific orientation, or to operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A large-angle mechanism suitable for laser line projectors, comprising a pendulum body, a horizontal laser tube holder, a vertical laser tube holder, and a conical mirror device, characterized in that: The top of the pendulum body is integrated with an adjusting bearing, and an angle adjusting base is installed on the adjusting bearing. A wiring channel is reserved inside the pendulum body. The horizontal laser tube holder is installed on one side below the pendulum body. The vertical laser tube holder is installed on the angle adjusting base at the top of the pendulum body. Both the horizontal and vertical laser tube holders are connected to the pendulum body by a detachable mechanism. A conical mirror device is installed inside both the horizontal and vertical laser tube holders, and the cable of the conical mirror device is threaded through the wiring channel.

2. The large-angle mechanism for laser line projectors according to claim 1, characterized in that: The detachable mechanism is a locking clamp or a locking bolt; gaskets are distributed between the horizontal laser tube base and the pendulum body; gaskets are distributed between the vertical laser tube base and the pendulum body.

3. The large-angle mechanism for laser line projectors according to claim 2, characterized in that: The gasket is either a thin plastic gasket or a thickened ceramic gasket.

4. The large-angle mechanism for laser line projectors according to claim 1, characterized in that: The detachable mechanism includes a mounting base connected to the pendulum body; mounting blocks are distributed on the mounting base, the mounting blocks are connected to the pendulum body by locking bolts, positioning cylinders are distributed on the mounting base, the conical mirror device is installed inside the positioning cylinders, and several positioning screws are distributed on the positioning cylinders, the positioning screws are in contact with the conical mirror device.

5. The large-angle mechanism for laser line projectors according to claim 1, characterized in that: The conical mirror device includes a device body, which is covered with a protective shell. A conical mirror body is mounted on the device body, and the conical surface of the conical mirror body is coated with a metal coating or a dielectric film.

6. The large-angle mechanism for laser line projectors according to claim 5, characterized in that: The reflection angle of the conical mirror body is 45°.

7. The large-angle mechanism for laser line projectors according to claim 1, characterized in that: A bearing base is installed below the pendulum body; a connecting flange is installed below the bearing base.

8. The large-angle mechanism for laser line projectors according to claim 1, characterized in that: The cable sheath is equipped with a cable bundle sleeve.

9. The large-angle mechanism for laser line projectors according to claim 1, characterized in that: The cable is equipped with a terminal block, and the terminal block is covered with a waterproof sleeve.

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