A portable laser range finder

Abstract

This utility model discloses a portable laser rangefinder, including a display screen and buttons on the surface of the main body. A portable protective mechanism is provided on the top of the main body, which consists of a protective cover assembly and a mounting slot. By providing a portable protective mechanism on the top of the main body, the laser emission and reception window and viewfinder are protected, effectively preventing dust and dirt from contacting the laser emission and reception window, ensuring the initial stability of the laser emission, and preventing the laser divergence angle, energy, wavelength and other parameters from changing due to external contamination. Thus, high and stable measurement accuracy can be maintained in multiple measurements, reducing measurement errors caused by contamination of the emission port, making the measurement results more reliable. Moreover, the portable protective mechanism makes it more portable and allows the laser rangefinder to better adapt to harsh conditions.

Description

Technical Field

[0001] This utility model belongs to the field of rangefinder technology, specifically relating to a portable laser rangefinder. Background Technology

[0002] A laser rangefinder is an instrument that uses a modulated laser parameter to measure the distance to a target.

[0003] Existing laser rangefinders, during use, emit a laser beam towards the target object through a built-in laser transmitter and a laser emission and reception window. The emitted laser beam is reflected back after encountering the target object and is then received again through the laser emission and reception window. The time difference between laser emission and reception is calculated to determine the distance. Since the laser emission and reception window is exposed, if it becomes contaminated with dust or dirt, it will affect the quality of laser emission and thus reduce measurement accuracy. Conventional cleaning with tools is inconvenient and lacks portability. Therefore, this utility model proposes a portable laser rangefinder. Utility Model Content

[0004] The purpose of this invention is to provide a portable laser rangefinder to solve the problem mentioned in the background art that if the laser emission and receiving window is contaminated with dust, stains, etc., it will affect the laser emission quality and thus lead to a decrease in measurement accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable laser rangefinder, including a display screen and buttons disposed on the surface of the main body, a portable protective mechanism disposed on the top of the main body, the portable protective mechanism consisting of a protective cover assembly and a mounting groove, the mounting groove being opened at the top of the main body, the protective cover assembly consisting of cover A, cover B, and connecting components, cover A being disposed inside the mounting groove, cover B being disposed on the side of cover A and located inside the mounting groove, the connecting component consisting of a connecting block, a connecting groove, and symmetrically arranged connecting components, the connecting block being fixed to one end of cover A, the connecting groove being opened at one end of cover B, the connecting block being engaged with the inside of the connecting groove, and the symmetrically arranged connecting components being disposed at the connection points between the two ends of the connecting block and the two ends of the connecting groove.

[0006] Preferably, the connecting assembly consists of a protrusion, a groove, and a torsion spring. The groove is formed at the end of the connecting groove, the protrusion is fixed to the end of the connecting block and located inside the groove, the torsion spring is sleeved on the surface of the protrusion and located inside the groove, and the two ends of the torsion spring are fixed to the two sides of the inner wall of the groove.

[0007] Preferably, limiting components are provided on both sides of the cover B and on both sides of the inner wall of the mounting groove. The limiting components consist of a slider, a groove, and symmetrically arranged silicone seats. The groove is opened on the side of the cover B. The slider is fixed to the inner side of the mounting groove and located inside the groove. The symmetrically arranged silicone seats are located on both sides of the groove and at the connection between the two sides of the slider, and the silicone seats are fixed to the inner wall of the groove.

[0008] Preferably, the slider has a rectangular cross-section.

[0009] Preferably, a locking assembly is provided at the connection between the other end of the cover A and the end of the mounting groove. The locking assembly consists of a limiting groove and a limiting block. The limiting groove is opened inside the mounting groove, and the limiting block is fixed to the other end of the cover A and located inside the limiting groove.

[0010] Preferably, a laser emission and reception window is provided at the bottom of the mounting slot, and a viewfinder is provided at the bottom of the mounting slot.

[0011] Preferably, the main body has a built-in power module and a laser emitter inside.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By designing a portable protective mechanism, this invention addresses the issue that dust and dirt on the laser emission and reception window of traditional laser rangefinders can affect laser emission quality and reduce measurement accuracy. Conventional cleaning methods are inconvenient. The portable protective mechanism, located at the top of the main unit, protects the laser emission and reception window and viewfinder, effectively preventing dust and dirt from contacting the window. This ensures the initial stability of the laser emission, preventing changes in parameters such as divergence angle, energy, and wavelength due to external contamination. Consequently, it maintains high and stable measurement accuracy across multiple measurements, reducing measurement errors caused by contamination of the emission port and making measurement results more reliable. Furthermore, the portable protective mechanism enhances portability, allowing the laser rangefinder to better adapt to harsh conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the portable protective mechanism of this utility model.

[0016] Figure 3 This is a schematic diagram of the portable protective mechanism structure of this utility model;

[0017] Figure 4 This utility model Figure 3Enlarged schematic diagram of region A in the image;

[0018] In the diagram: 1. Main body; 2. Display screen; 3. Portable protective mechanism; 31. Protective cover assembly; 311. Cover A; 3111. Limiting groove; 3112. Limiting block; 312. Cover B; 3121. Slider; 3122. Sliding groove; 3123. Silicone seat; 313. Connecting assembly; 3131. Connecting block; 3131A. Protrusion; 3131B. Groove; 3131C. Torsion spring; 3132. Connecting groove; 32. Mounting groove; 4. Button; 5. Laser emission and reception window; 6. Viewfinder. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 4This utility model provides a technical solution: a portable laser rangefinder, including a display screen 2 and buttons 4 disposed on the surface of the main body 1. A portable protective mechanism 3 is disposed on the top of the main body 1. The portable protective mechanism 3 consists of a protective cover assembly 31 and a mounting groove 32. The portable protective mechanism 3 effectively protects the laser emission and reception window 5 and the viewfinder 6. The mounting groove 32 is located at the top of the main body 1. The protective cover assembly 31 consists of a cover body A311, a cover body B312, and a connecting assembly 313. The cover body A311 is disposed inside the mounting groove 32, and the cover body B312 is disposed on the side of the cover body A311 and located inside the mounting groove 32. The connecting assembly 313 consists of a connecting block 3131 and a connecting groove 3132. The device consists of symmetrically arranged connecting components. Connecting component 313 is used for the movable connection between cover A311 and cover B312. Connecting block 3131 is fixed to one end of cover A311, and connecting groove 3132 is opened at one end of cover B312. Connecting block 3131 is inserted into the inner side of connecting groove 3132. The symmetrically arranged connecting components are located at the connection points between the two ends of connecting block 3131 and the two ends of connecting groove 3132. The designed portable protective mechanism 3 improves upon the previous laser rangefinder system, where dust and dirt on the laser emission and reception window 5 would affect the laser emission quality, leading to a decrease in measurement accuracy. Conventional cleaning methods are inconvenient. By setting a portable protective mechanism 3 on the top of the main body 1, the device addresses this issue. The laser emission and reception window 5 and viewfinder 6 are protected, effectively preventing dust and dirt from contacting the laser emission and reception window 5. This ensures the initial stability of the laser emission, preventing parameters such as the laser divergence angle, energy, and wavelength from changing due to external contamination. This maintains high and stable measurement accuracy during multiple measurements, reducing measurement errors caused by emission port contamination and making the measurement results more reliable. Furthermore, the portable protective mechanism 3 enhances portability and allows the laser rangefinder to better adapt to harsh conditions. The connecting component consists of a protrusion 3131A, a groove 3131B, and a torsion spring 3131C. The connecting component limits the connection block 3131 and the connection groove 3132, and the torsion spring 3131C satisfies the requirements of the portable protective mechanism 3. In use, the cover A311 automatically pops out after losing its limiting position. The groove 3131B is located at the end of the connecting groove 3132. The protrusion 3131A is fixed to the end of the connecting block 3131 and located inside the groove 3131B. The torsion spring 3131C is sleeved on the surface of the protrusion 3131A and located inside the groove 3131B. Both ends of the torsion spring 3131C are fixed to the inner walls of the groove 3131B. Limiting components are provided on both sides of the cover B312 and the inner walls of the mounting groove 32. These limiting components consist of a slider 3121, a sliding groove 3122, and symmetrically arranged silicone seats 3123. The sliding groove 3122 is located on the side of the cover B312, and the slider 3121 is fixed to the inner side of the mounting groove 32 and located inside the sliding groove 3122.The protective cover assembly 31 is positioned and fixed within the mounting groove 32 by a limiting component. Symmetrically arranged silicone seats 3123 are located on both sides of the slide groove 3122 and at the connection points on both sides of the slider 3121, and are fixed to the inner wall of the slide groove 3122. The slider 3121 has a rectangular cross-section. A laser emission and reception window 5 and a viewfinder 6 are located at the bottom of the mounting groove 32. A power module and a laser emitter are built into the main body 1.

[0021] In this embodiment, preferably, a locking component is provided at the connection between the other end of the cover A311 and the end of the mounting groove 32. The locking component enables the cover A311 and the mounting groove 32 to lock together. The locking component consists of a limiting groove 3111 and a limiting block 3112. The limiting groove 3111 is opened inside the mounting groove 32, and the limiting block 3112 is fixed to the other end of the cover A311 and located inside the limiting groove 3111.

[0022] The working principle and usage process of this utility model are as follows: When measuring distance using a laser rangefinder, the portable protective mechanism 3 used to protect the laser emission and reception window 5 and the viewfinder 6 is first unfolded. By pushing the protective cover assembly 31 to one side, the protective cover assembly 31 slides within the mounting groove 32 by a limiting component and is fixed in position by a silicone seat 3123. When the limiting groove 3111 and the limiting block 3112 separate, the cover A311 loses its limiting position. Under the torque of the torsion spring 3131C in the connecting component, the cover A311 unfolds, exposing the laser emission and reception window 5 and the viewfinder 6. When the laser rangefinder is working, a laser beam is emitted towards the target object through the laser emission and reception window 5 via the built-in laser transmitter. When the laser beam encounters the target... The reflected light is reflected from behind the object and returns along the original path or approximately the original path. It then enters the main body 1 again through the laser emission and reception window 5. The laser receiver inside the rangefinder receives the reflected laser signal and converts it into an electrical signal. The distance between the laser rangefinder and the target object is calculated based on the time, and the result is displayed on the display screen 2. After the laser rangefinder is used, the cover A311 is pressed down, and the cover A311 is inserted into the inner side of the mounting groove 32 through the connecting component 313, and the torsion spring 3131C is deformed. Then, the protective cover assembly 31 is pushed to the other side, and the position is fixed by the silicone seat 3123 of the limiting component, and the limiting block 3112 is inserted into the inner side of the limiting groove 3111, thus completing the closure of the laser emission and reception window 5 and the viewfinder 6.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable laser rangefinder, comprising a display screen (2) disposed on the surface of a main body (1) and buttons (4) disposed on the surface of the main body (1), characterized in that: A portable protective mechanism (3) is provided on the top of the main body (1). The portable protective mechanism (3) consists of a protective cover assembly (31) and a mounting groove (32). The mounting groove (32) is located at the top of the main body (1). The protective cover assembly (31) consists of a cover body A (311), a cover body B (312), and a connecting assembly (313). The cover body A (311) is located inside the mounting groove (32), and the cover body B (312) is located on the side of the cover body A (311) and is located in the mounting groove. (32) Inside the connecting component (313), the connecting component (313) consists of a connecting block (3131), a connecting groove (3132), and symmetrically arranged connecting components. The connecting block (3131) is fixed to one end of the cover A (311), and the connecting groove (3132) is opened at one end of the cover B (312). The connecting block (3131) is inserted into the inside of the connecting groove (3132). The symmetrically arranged connecting components are located at the connection points between the two ends of the connecting block (3131) and the two ends of the connecting groove (3132).

2. The portable laser rangefinder according to claim 1, characterized in that: The connecting assembly consists of a protrusion (3131A), a groove (3131B), and a torsion spring (3131C). The groove (3131B) is formed at the end of the connecting groove (3132). The protrusion (3131A) is fixed to the end of the connecting block (3131) and located inside the groove (3131B). The torsion spring (3131C) is sleeved on the surface of the protrusion (3131A) and located inside the groove (3131B). The two ends of the torsion spring (3131C) are fixed to the two sides of the inner wall of the groove (3131B).

3. A portable laser rangefinder according to claim 1, characterized in that: Limiting components are provided on both sides of the cover B (312) and on both sides of the inner wall of the mounting groove (32). The limiting components consist of a slider (3121), a groove (3122), and symmetrically arranged silicone seats (3123). The groove (3122) is opened on the side of the cover B (312). The slider (3121) is fixed to the inner side of the mounting groove (32) and located inside the groove (3122). The symmetrically arranged silicone seats (3123) are located on both sides of the groove (3122) and at the connection between the two sides of the slider (3121), and the silicone seats (3123) are fixed to the inner wall of the groove (3122).

4. A portable laser rangefinder according to claim 3, characterized in that: The slider (3121) has a rectangular cross-section.

5. A portable laser rangefinder according to claim 1, characterized in that: A locking assembly is provided at the connection between the other end of the cover A (311) and the end of the mounting groove (32). The locking assembly consists of a limiting groove (3111) and a limiting block (3112). The limiting groove (3111) is opened inside the mounting groove (32), and the limiting block (3112) is fixed to the other end of the cover A (311) and located inside the limiting groove (3111).

6. A portable laser rangefinder according to claim 1, characterized in that: The bottom end of the mounting slot (32) is provided with a laser emission receiving window (5) and a viewfinder (6).

7. A portable laser rangefinder according to claim 1, characterized in that: The main body (1) has a built-in power module and a laser emitter inside.

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