Detachable long-distance adjustable cross laser positioner

Abstract

The utility model discloses a detachable long-distance adjustable cross laser positioner which comprises a front sleeve, a sliding sleeve, a rotating sleeve, a lens seat, a cylindrical lens assembly, an LD assembly and a tail fixing seat. Focal length adjustment is achieved through screw-thread fit of the rotating sleeve and the lens seat, the double-eccentric cylindrical lens group generates a cross light spot, and the long-focal-length collimating lens controls a light beam divergence angle. The LD assembly adopts a quick release structure, and supports quick replacement of a chip. The positioner has the advantages that the light beam precision is high (llt; the device has the characteristics of simple structure, convenient adjustment (+ / -5mm adjustment range), low maintenance cost (chip replacement is completed within 5 minutes) and the like, and is suitable for long-distance high-precision positioning scenes such as industrial measurement, building construction and the like.

Description

Technical Field

[0001] This utility model belongs to the field of laser positioners, and in particular relates to a detachable, long-distance adjustable cross laser positioner. Background Technology

[0002] Existing laser positioners face significant technical bottlenecks in industrial measurement and construction applications. Traditional products generally employ a wave-shaped lens structure, resulting in insufficient accuracy in generating the crosshair spot and a large beam divergence angle (typically >0.5mRad). At a distance of 100 meters, the spot width can reach 15-20mm, failing to meet the requirements for precise positioning. Their optical systems mostly use a fixed focal length design, unable to dynamically adjust according to the working distance, and the adjustment mechanism requires specialized tools, making operation complex. Furthermore, the core component, the laser chip (LD assembly), typically uses epoxy resin encapsulation; if damaged, the entire positioner must be replaced, resulting in long downtime and maintenance costs reaching 60%-80% of the price of a new product. More importantly, existing products lack a modular design concept; the cylindrical lenses required for different working scenarios cannot be quickly replaced, limiting the equipment's environmental adaptability. These technical deficiencies have become key factors restricting the application of laser positioners in long-distance, high-precision scenarios. Utility Model Content

[0003] The purpose of this utility model is to provide a detachable, long-range adjustable cross laser positioner, aiming to solve the problems existing in the background art. To achieve this purpose, the technical solution adopted by this utility model is:

[0004] A detachable, long-range adjustable cross laser positioner includes a front sleeve, a sliding sleeve, a rotating sleeve, a lens mount, a cylindrical lens assembly, an LD assembly, and a tail fixing seat. The rotating sleeve houses the sliding sleeve, the sliding sleeve houses the lens mount, the front of the lens mount is mounted on the front end of the cylindrical lens assembly, the front end of the sliding sleeve is threadedly connected to the front end of the sliding sleeve, the rear end of the rotating sleeve houses the LD assembly, the tail fixing seat is fixed to the rear end of the rotating sleeve by screws, and the rear end of the sliding sleeve is threadedly connected to the LD assembly.

[0005] Preferably, the cylindrical lens assembly includes a cylindrical lens base, a fixing hole, and a four-cylinder lens. The cylindrical lens base has multiple mounting holes inside, which are used for the detachable mounting of the four-cylinder lens.

[0006] Preferably, the LD assembly includes an LD sleeve and an LD seat, the rear end of the sliding sleeve is threadedly connected to the LD sleeve, and the LD sleeve is provided between the tail fixing seat and the LD seat.

[0007] Preferably, the sliding sleeve includes a sliding sleeve body and a sliding hole. The sliding sleeve body has a sliding hole inside, which is used for the lens holder to slide inside the sliding sleeve body.

[0008] Preferably, the surface of the lens holder is provided with multiple protrusions, and the surface of the protrusions is provided with threads that are adapted to the threads of the rotating sleeve.

[0009] Preferably, the four-cylinder lens is a double-eccentric cylindrical lens.

[0010] The beneficial effects of this utility model are:

[0011] Improved optical performance: The use of a double-eccentric cylindrical lens group (four-column lens structure) enables precise cross-shaped light spot generation. The long focal length collimating lens controls the beam divergence angle to <0.3mRad and the line width to ≤10mm at a distance of 100 meters.

[0012] Detachable design: The LD assembly and tail mount adopt a threaded quick-release structure, which reduces the chip replacement time from the traditional 2 hours to 5 minutes. The cylindrical lens assembly is modularly installed through the fixing holes, which supports quick replacement of lenses with different focal lengths.

[0013] Convenience of adjustment: The rotating sleeve and the lens mount are engaged by a protrusion thread to achieve a focal length adjustment range of ±5mm. The sliding hole design of the sliding sleeve supports axial fine adjustment of the lens mount, with an adjustment accuracy of 0.1mm. Attached Figure Description

[0014] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the exploded structure provided for an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the exploded structure provided for an embodiment of the present utility model.

[0017] The following are the labeling elements in the figure:

[0018] 1. Front sleeve; 2. Sliding sleeve; 21. Sliding sleeve body; 22. Sliding hole; 3. Rotating sleeve; 4. Lens mount; 5. Cylindrical lens assembly; 51. Cylindrical lens mount; 52. Fixing hole; 53. Four-cylindrical lens; 6. LD assembly; 61. LD sleeve; 62. LD mount; 7. Tail mount; 8. Protrusion. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present. Conversely, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. The terms "upper end," "lower end," "left side," "right side," "front end," "rear end," and similar expressions used herein refer to the positional relationship with reference to the accompanying drawings.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0023] like Figures 1-3 As shown, this utility model embodiment provides a detachable, long-range adjustable cross laser positioner, including a front sleeve 1, a sliding sleeve 2, a rotating sleeve 3, a lens holder 4, a cylindrical lens assembly 5, an LD assembly 6, and a tail fixing seat 7. The sliding sleeve 2 is installed inside the rotating sleeve 3, and the lens holder 4 is installed inside the sliding sleeve 2. The cylindrical lens assembly 5 is installed at the front end of the lens holder 4, and the front sleeve is installed at the front end of the cylindrical lens assembly 5. The front end of the sliding sleeve 2 is threadedly connected to the front sleeve. The LD assembly 6 is installed at the rear end of the rotating sleeve 3. The tail fixing seat 7 is fixed to the rear end of the rotating sleeve 3 by screws, and the rear end of the sliding sleeve 2 is threadedly connected to the LD assembly 6.

[0024] In this embodiment, the cylindrical lens assembly 5 includes a cylindrical lens base 51, a fixing hole 52, and a four-cylinder lens 53. The cylindrical lens base 51 has multiple mounting holes inside, which are used for the detachable mounting of the four-cylinder lens 53.

[0025] In this embodiment, the LD assembly 6 includes an LD sleeve 61 and an LD seat 62. The rear end of the sliding sleeve 2 is threadedly connected to the LD sleeve 61, and the LD sleeve 61 is disposed between the tail fixing seat 7 and the LD seat 62.

[0026] In this embodiment, the sliding sleeve 2 includes a sliding sleeve body 21 and a sliding hole 22. The sliding sleeve body 21 is provided with a sliding hole 22, which is used for the lens holder 4 to slide inside the sliding sleeve body 21.

[0027] In this embodiment, the lens holder 4 is provided with a plurality of protrusions 8 on its outer surface, and the surface of the protrusions 8 is provided with threads that are compatible with the threads of the rotating sleeve 3.

[0028] In this embodiment, the four-column lens 53 is a double-eccentric cylindrical lens.

[0029] Working Principle: When this detachable, long-range adjustable crosshair laser positioner is put into operation, the LD assembly 6 located inside the device plays a crucial role in laser emission. The LD holder 62 in the LD assembly 6 provides stable support, and the laser emission source on it generates a laser beam. This laser beam first enters the LD sleeve 61. The LD sleeve 61 acts as a precise guiding channel, performing preliminary collimation on the laser beam to ensure that the laser beam exits from the LD sleeve 61 in a relatively regular shape, and then enters the lens holder 4.

[0030] At this point, the focus adjustment function is achieved through the coordinated operation of the rotating sleeve 3 and the lens mount 4. The rotating sleeve 3 and the lens mount 4 are threaded together via a protrusion 8. When the operator rotates the rotating sleeve 3, the interaction between the protrusion 8 and the thread drives the lens mount 4 to move axially. This axial movement can reach ±5mm, thus achieving effective focus adjustment. Simultaneously, the sliding sleeve 2 also participates in the spot optimization process. The sliding sleeve 2 includes a sliding sleeve body 21 and a sliding hole 22 on it, which provides space for fine-tuning of the lens mount 4. The lens mount 4 can make minute axial movements within the limits of the sliding hole 22. Through this fine-tuning, the sharpness of the spot can be further optimized, making the spot projected by the positioner clearer and more accurate.

[0031] After focal length adjustment and beam spot optimization, the laser beam enters the cylindrical lens assembly 5. The cylindrical lens assembly 5 mainly consists of a cylindrical lens mount 51, a fixing hole 52, and a four-cylinder lens 53. The four-cylinder lens 53 employs a double-eccentric cylindrical lens design; this unique structure cleverly transforms the originally circular laser spot into a cross-shaped spot. The cross-shaped spot plays an important positioning and indicating role in industrial measurement, construction, and other scenarios. Simultaneously, a long-focal-length collimating lens, though not separately numbered and mentioned in the document, is also incorporated into the laser propagation path. This key optical adjustment component effectively compresses the laser beam divergence angle, controlling it to <0.3mRad. This ensures that the laser beam maintains good concentration and accuracy even at long distances, with the beam width controlled to ≤10mm even at a distance of 100 meters.

[0032] When the positioner requires maintenance, its unique detachable design demonstrates its advantages. If the chip in the LD assembly 6 is damaged, the operator can quickly remove the LD assembly 6 from the device by simply rotating the tail fixing seat 7 counterclockwise, facilitating chip replacement. For the cylindrical lens assembly 5, if lens replacement or cleaning is required, the operator can easily remove the cylindrical lens assembly 5 by simply loosening the threads on the front sleeve 1, allowing for the appropriate maintenance of the internal four-pillar lens 53, etc., greatly improving equipment maintenance efficiency and reducing maintenance costs.

[0033] The above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model. The patent protection scope of the present utility model should be defined by the claims.

Claims

1. A detachable, long-range adjustable crosshair laser locator, characterized in that: The device includes a front sleeve, a sliding sleeve, a rotating sleeve, a lens mount, a cylindrical lens assembly, an LD assembly, and a tail mounting base. The sliding sleeve is installed inside the rotating sleeve, and the lens mount is installed inside the sliding sleeve. The cylindrical lens assembly is installed at the front end of the lens mount, and the front sleeve is installed at the front end of the cylindrical lens assembly. The front end of the sliding sleeve is threadedly connected to the front sleeve. The LD assembly is installed at the rear end of the rotating sleeve. The tail mounting base is fixed to the rear end of the rotating sleeve by screws, and the rear end of the sliding sleeve is threadedly connected to the LD assembly.

2. The detachable, long-range adjustable cross laser positioner according to claim 1, characterized in that: The cylindrical lens assembly includes a cylindrical lens base, a fixing hole, and a four-cylinder lens. The cylindrical lens base has multiple mounting holes inside, which are used for detachable installation of the four-cylinder lens.

3. A detachable, long-range adjustable cross laser locator according to claim 2, characterized in that: The LD assembly includes an LD sleeve and an LD base. The rear end of the sliding sleeve is threadedly connected to the LD sleeve, and the LD sleeve is disposed between the tail fixing base and the LD base.

4. A detachable, long-range adjustable cross laser locator according to claim 3, characterized in that: The sliding sleeve includes a sliding sleeve body and a sliding hole. The sliding hole is provided inside the sliding sleeve body, and the sliding hole is used for the lens holder to slide inside the sliding sleeve body.

5. A detachable, long-range adjustable cross laser locator according to claim 4, characterized in that: The surface of the lens holder is provided with a plurality of protrusions, and the surface of the protrusions is provided with threads, which are adapted to the threads of the rotating sleeve.

6. A detachable, long-range adjustable cross laser locator according to claim 4, characterized in that: The four-column mirror is a double-eccentric cylindrical lens.

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