Handheld laser range finder

Abstract

The utility model relates to a handheld laser range finder, which comprises a bottom shell, a surface shell, a laser range finding device and a measuring tape device, the bottom shell and the face shell define an installation cavity, the installation cavity comprises a front element cavity and a rear element cavity which are arranged front and back, a laser ranging device is installed in the front element cavity, a measuring tape device is installed in the rear element cavity, and the front side wall of the bottom shell is provided with an optical window for laser to pass through. And the rear side wall of the bottom shell is provided with a measuring tape outlet through which a tape of the measuring tape device passes. According to the handheld laser range finder, the mounting cavity defined by the bottom shell and the face shell is divided into the front element cavity and the rear element cavity, so that the internal space of the handheld laser range finder is optimized, a measuring tape device can be additionally arranged in the shell of the handheld laser range finder, and the two functions of measuring tape ranging and laser ranging are achieved; and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of laser measurement equipment, in particular to a handheld laser rangefinder. Background Art

[0002] A handheld laser rangefinder is an instrument that uses laser to accurately measure the distance to a target. When working, the laser rangefinder emits a very thin laser beam towards the target. The photoelectric element receives the laser beam reflected by the target. The time from the laser emission to the laser reception is measured by the timer on the circuit board, and the distance from the observer to the target is calculated. The defects and shortcomings of existing handheld laser rangefinders are: (1) The function is single and can only realize the relevant functions of laser ranging. Laser ranging is mainly suitable for long-distance measurement. When the distance to be measured is small, the handheld laser rangefinder is inconvenient to use and has low measurement accuracy. (2) After the existing handheld laser rangefinder falls, its internal hardware is easily displaced, which leads to large measurement errors when the handheld laser rangefinder is subsequently used.

[0003] Therefore, there is an urgent need to provide a handheld laser rangefinder with diverse functions and a wide measuring range. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a handheld laser rangefinder, which solves the technical problem that the existing handheld laser rangefinder has a single function and is inconvenient to measure short distances.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0008] The embodiment of the utility model provides a handheld laser rangefinder, comprising a bottom shell, a front shell, a laser rangefinder device and a tape measure device;

[0009] The bottom shell and the top shell enclose an installation chamber, which includes a front element chamber and a rear element chamber arranged front and back. A laser ranging device is installed in the front element chamber, and a tape measure device is installed in the rear element chamber. The front side wall of the bottom shell is provided with an optical window for the laser to pass through, and the rear side wall of the bottom shell is provided with a tape measure outlet for the tape of the tape measure device to pass through.

[0010] Optionally, the laser distance measuring device includes an optical bracket, a circuit board, a laser transmitting module and a laser receiving module;

[0011] An optical bracket is fixedly installed in the front element cavity, and a laser emitting module and a laser receiving module are installed inside the optical bracket. Tail wings are provided on the left and right sides of the rear end of the optical bracket. The lower surfaces of the two tail wings are fixedly connected to the circuit board, and the circuit board is electrically connected to the laser emitting module and the laser receiving module respectively.

[0012] Optionally, the laser distance measuring device further comprises a fixing screw;

[0013] A circuit board fixing hook is provided on the lower surface of one of the two tail wings, and a clamping hole is provided on the circuit board corresponding to the circuit board fixing hook on the tail wing, and the circuit board fixing hook is clamped with the clamping hole;

[0014] A circuit board fixing screw hole is provided on the lower surface of the other tail wing. After the fixing screw passes through the circuit board, it is screwed into the circuit board fixing screw hole to fix the tail wing and the circuit board together.

[0015] Optionally, the handheld laser rangefinder further includes a display screen fixing base and a display screen electrically connected to the circuit board;

[0016] The upper surface of the optical bracket is detachably connected to the display screen fixing base, the display screen is installed on the display screen fixing base, and a display screen window is opened in the installation area of ​​the surface shell corresponding to the display screen;

[0017] A plurality of function buttons are provided on the upper surface of the face shell corresponding to the installation area of ​​the tape measure device, and the plurality of function buttons are electrically connected to the circuit board.

[0018] Optionally, a plurality of limiting posts are provided on the lower surface of the display screen fixing seat, and limiting grooves are provided on the upper surface of the optical bracket corresponding to each limiting post, and the limiting posts are inserted into the limiting grooves one by one;

[0019] There are multiple fixing seat slots on the left and right sides of the optical bracket. The lower surface of the display screen fixing seat is provided with fixing seat hooks corresponding to each fixing seat slot. The fixing seat hooks are inserted into the fixing seat slots one by one and are connected with the fixing seat slots.

[0020] A first limiting step is provided on the lower surface of the front end of the display screen fixing seat, and a blocking portion is provided on the upper surface of the optical bracket. The blocking portion abuts against the first limiting step, thereby limiting the display screen fixing seat in the front-back direction.

[0021] Optionally, the laser receiving module includes a light receiving lens, a filter, a filter holder, an inner laser tube, an inner light button regulating valve and a laser receiving module;

[0022] Along the incident direction of the laser, the light receiving lens, the filter holder with the filter installed, and the laser receiving module are arranged in sequence inside the optical holder;

[0023] The inner light button regulating valve and the inner laser tube are arranged inside the optical bracket and on one side of the laser incident light path.

[0024] Optionally, the laser ranging device further includes a battery and a Type-C connector electrically connected to the circuit board;

[0025] The bottom shell is provided with a battery below the optical bracket, and the left side wall or the right side wall of the bottom shell is provided with a Type-C connector.

[0026] Optionally, the inner side wall of the bottom shell is provided with a first limiting member around the tape measure device, and a second limiting member is provided between the tape measure device and the battery, and the first limiting member and the second limiting member constitute a limiting portion for installing the tape measure device;

[0027] The inner side wall of the bottom shell is provided with a third limiting piece on the front side of the battery, and second limiting steps are provided on the left and right sides of the battery. The second limiting piece, the third limiting piece and the second limiting step constitute a battery installation limiting portion.

[0028] Optionally, the laser ranging device further includes a laser line projection module, which is mounted on the optical bracket.

[0029] (3) Beneficial effects

[0030] The beneficial effects of the present utility model are as follows: the handheld laser rangefinder of the present utility model comprises a bottom shell, a face shell, a laser rangefinder and a tape measure device; the bottom shell and the face shell enclose an installation chamber, the installation chamber comprises a front element chamber and a rear element chamber arranged front and back, the laser rangefinder is installed in the front element chamber, and the tape measure device is installed in the rear element chamber, and the front side wall of the bottom shell is provided with an optical window for the laser to pass through, and the rear side wall of the bottom shell is provided with a tape measure outlet for the tape of the tape measure device to pass through. Compared with the prior art, the internal space of the handheld laser rangefinder is optimized, so that the tape measure device can be added inside the shell of the handheld laser rangefinder, thereby realizing the two functions of tape measure distance measurement and laser distance measurement, so the handheld laser rangefinder has a wider range of applications and is more convenient to use.

[0031] The handheld laser rangefinder of the utility model has a compact structure and is firmly installed. The display screen and the circuit board are limited and fixed by a clamping structure. The battery and the tape measure device are both provided with limit members for limiting the position. This can effectively prevent the internal components of the handheld laser rangefinder from being displaced after it falls, thereby affecting the test accuracy, thereby extending the service life of the instrument and improving the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional schematic diagram of the handheld laser rangefinder of the present utility model;

[0033] Figure 2This is an exploded view of the handheld laser rangefinder of the present utility model;

[0034] Figure 3 This is an exploded view of the laser distance measuring device of the handheld laser distance measuring instrument of the present invention;

[0035] Figure 4 A perspective view of the laser distance measuring device of the handheld laser distance measuring instrument of the present invention;

[0036] Figure 5 Another perspective view of the laser distance measuring device of the handheld laser distance measuring instrument of the present invention;

[0037] Figure 6 It is a top view schematic diagram of the bottom shell and tape measure device of the handheld laser rangefinder of the present invention;

[0038] Figure 7 It is a three-dimensional schematic diagram of the bottom shell of the handheld laser rangefinder of the present invention.

[0039] [Description of Reference Numerals]

[0040] 1: Bottom shell; 2: Top shell; 3: Laser distance measuring device; 4: Tape measure device; 5: Optical window; 6: Tape measure outlet; 7: Optical bracket; 8: Circuit board; 9: Battery; 10: Laser transmitting module; 11: Laser receiving module; 12: Display screen fixing seat; 13: Display screen; 14: Limiting column; 15: Limiting slot; 16: Fixing seat hook; 17: Fixing seat slot; 18: Type-C connector; 19: Function button; 20: Light receiving lens; 21: Filter; 22: Filter bracket; 23: Inner laser tube; 24: Inner light button regulating valve; 25: Laser receiving module; 26: First limiting member; 27: Second limiting member; 28: Third limiting member; 29: First limiting step; 30: Blocking part; 31: Second limiting step. DETAILED DESCRIPTION

[0041] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below with reference to the accompanying drawings and through specific embodiments. Figure 1 The orientation is referenced.

[0042] Reference Figure 1 and Figure 2 This embodiment provides a handheld laser rangefinder, including a bottom shell 1, a surface shell 2, a laser rangefinder device 3 and a tape measure device 4.

[0043] The bottom shell 1 and the top shell 2 enclose an installation chamber, which includes a front element chamber and a rear element chamber arranged in a front-to-back arrangement. The front element chamber houses a laser distance measuring device 3, while the rear element chamber houses a tape measuring device 4. The front sidewall of the bottom shell 1 is provided with an optical window 5 for the laser to pass through, and the rear sidewall of the bottom shell 1 is provided with a tape outlet 6 for the tape of the tape measuring device 4 to pass through. It should be further explained that the tape measuring device 4 is fixed to the wall of the bottom shell 1 via a tape fixing plate. The measuring range of the tape measuring device 4 is 0-5m, while the measuring range of the laser distance measuring device 3 can reach 0-5000m.

[0044] The handheld laser rangefinder of this embodiment divides the installation chamber formed by the bottom shell 1 and the surface shell 2 into a front component chamber and a rear component chamber, which optimizes the internal space of the handheld laser rangefinder. As a result, a tape measure device 4 can be added inside the shell of the handheld laser rangefinder, thereby realizing both tape measure ranging and laser ranging functions. Therefore, the handheld laser rangefinder is suitable for short-distance measurement within 5 meters and long-distance measurement of 5-5000 meters, with a wider range of applicability and greater convenience in use.

[0045] Combine Figure 3 、 Figure 4 and Figure 5 As shown, the laser ranging device 3 of this embodiment includes an optical bracket 7, a circuit board 8, a laser emitting module 10, and a laser receiving module 11. The optical bracket 7 is fixedly mounted in the front element cavity, and the laser emitting module 10 and the laser receiving module 11 are mounted inside the optical bracket 7. Tail fins are provided on the left and right sides of the rear end of the optical bracket 7. The lower surfaces of the two tail fins are fixedly connected to the circuit board 8, and the circuit board 8 is electrically connected to the laser emitting module 10 and the laser receiving module 11 respectively.

[0046] Furthermore, a circuit board fixing hook is provided on the lower surface of one of the two tail wings, and a card hole is provided on the circuit board 8 corresponding to the circuit board fixing hook on the tail wing, and the circuit board fixing hook is engaged with the card hole; a circuit board fixing screw hole is provided on the lower surface of the other tail wing, and a fixing screw is passed through the circuit board 8 and screwed into the circuit board fixing screw hole on the tail wing to fix the tail wing and the circuit board 8 together.

[0047] During use, the laser emitted by the laser emitting module 10 is emitted through the optical window 5 and reaches the detection object. The detection object then reflects the laser back to the laser ranging device 3, that is, the laser enters through the optical window 5 and is received by the laser receiving module 11.

[0048] Specifically, the laser ranging device 3 of this embodiment further includes a battery 9 and a Type-C connector 18 electrically connected to the circuit board 8. The battery 9 is disposed below the optical bracket 7 on the bottom housing 1, and the Type-C connector 18 is disposed on the left or right wall of the bottom housing 1. The Type-C connector 18 can be connected to an external charging device via a data cable.

[0049] Specifically, the handheld laser rangefinder of this embodiment further includes a display screen holder 12 and a display screen 13 electrically connected to the circuit board 8. The upper surface of the optical bracket 7 is detachably connected to the display screen holder 12. The display screen 13 is mounted on the display screen holder 12. The front housing 2 has a display screen window defined in the mounting area corresponding to the display screen 13.

[0050] Furthermore, in this embodiment, the lower surface of the display screen holder 12 is provided with a plurality of limiting posts 14, and the upper surface of the optical bracket 7 is provided with limiting slots 15 corresponding to each of the limiting posts 14. The limiting posts 14 are inserted into the limiting slots 15 one by one, thereby positioning the display screen holder 12. The left and right sides of the optical bracket 7 are provided with a plurality of fixing seat slots 17, and the lower surface of the display screen holder 12 is provided with fixing seat hooks 16 corresponding to each of the fixing seat slots 17. The fixing seat hooks 16 are inserted into the fixing seat slots 17 one by one and engage with the fixing seat slots 17.

[0051] Furthermore, a first limiting step 29 is provided on the lower surface of the front end of the display screen fixing seat 12, and a blocking portion 30 is provided on the upper surface of the optical bracket 7. The blocking portion 30 abuts against the first limiting step 29, thereby limiting the display screen fixing seat 12 in the front and rear directions.

[0052] In this embodiment, a plurality of function buttons 19 are provided on the upper surface of the face shell 2 corresponding to the installation area of ​​the tape measure device 4 , and the plurality of function buttons 19 are electrically connected to the circuit board 8 .

[0053] Specifically, the laser emitting module 10 of this embodiment includes an invisible light laser emitting tube and / or a visible light laser emitting tube. Specifically, there are the following three situations: In the first situation, the laser emitting module 10 includes only a visible light laser emitting tube, in which case the visible light laser emitting tube is a red laser emitting tube. In the second situation, the laser emitting module 10 includes both an invisible light laser emitting tube and a visible light laser emitting tube, in which case the visible light laser emitting tube is a green laser emitting tube. In the third situation, the laser emitting module 10 includes only an invisible light laser emitting tube.

[0054] Specifically, the laser receiving module 11 of this embodiment includes a light receiving lens 20 , a filter 21 , a filter holder 22 , an inner laser tube 23 , an inner light button regulating valve 24 and a laser receiving module 25 .

[0055] Along the laser incident direction, the filter 21, the filter bracket 22 on which the filter 21 is installed, and the laser receiving module 25 are arranged in sequence inside the optical bracket 7; the internal light button regulating valve 24 and the internal laser tube 23 are arranged inside the optical bracket 7 and on one side of the laser incident light path.

[0056] Combine Figure 6 and Figure 7 As shown, the inner wall of the bottom shell 1 is provided with a first limiting member 26 around the tape measure device 4, and the inner wall of the bottom shell 1 is provided with a second limiting member 27 between the tape measure device 4 and the battery 9. The first limiting member 26 and the second limiting member 27 constitute the installation limiting part of the tape measure device.

[0057] The inner wall of the bottom shell 1 is provided with a third limiting member 28 on the front side of the battery 9, and the inner wall of the bottom shell 1 is provided with a second limiting step 31 on the left and right sides of the battery 9. The second limiting member 27, the third limiting member 28 and the second limiting step 31 constitute the battery installation limiting part.

[0058] The handheld laser rangefinder of this embodiment has a compact structure and is firmly assembled. The display screen and the circuit board are limited and fixed by a snap-on structure. Both the battery and the tape measure device are provided with limit members for positioning. This can effectively prevent the internal components of the handheld laser rangefinder from being displaced after it falls, which affects the test accuracy, thereby extending the service life of the instrument and improving the measurement accuracy.

[0059] Furthermore, the laser distance measuring device 3 of this embodiment further includes a laser line projection module (not shown in the figure), which is mounted on the optical bracket 7. The laser line projection module has a line projection function, which can emit a straight or cross-shaped laser line to mark horizontal, vertical, etc.

[0060] In the description of this utility model, it should be understood that 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 the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0061] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0062] In the present invention, unless otherwise expressly specified or limited, when a first feature is “above” or “below” a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0063] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0064] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A handheld laser rangefinder, characterized by: It comprises a bottom shell (1), a surface shell (2), a laser distance measuring device (3) and a tape measuring device (4); The bottom shell (1) and the top shell (2) enclose an installation chamber, the installation chamber comprising a front element chamber and a rear element chamber arranged front and back, a laser distance measuring device (3) being installed in the front element chamber, and a tape measuring device (4) being installed in the rear element chamber, and an optical window (5) for the laser to pass through being provided on the front side wall of the bottom shell (1), and a tape measuring tape outlet (6) for the tape measuring device (4) to pass through being provided on the rear side wall of the bottom shell (1).

2. The handheld laser rangefinder according to claim 1, wherein: The laser distance measuring device (3) comprises an optical bracket (7), a circuit board (8), a laser emitting module (10) and a laser receiving module (11); An optical bracket (7) is fixedly installed in the front element cavity, a laser emitting module (10) and a laser receiving module (11) are installed inside the optical bracket (7), and tail wings are provided on the left and right sides of the rear end of the optical bracket (7), the lower surfaces of the two tail wings are fixedly connected to the circuit board (8), and the circuit board (8) is electrically connected to the laser emitting module (10) and the laser receiving module (11) respectively.

3. The handheld laser rangefinder according to claim 2, wherein: The laser distance measuring device (3) further comprises a fixing screw; A circuit board fixing hook is provided on the lower surface of one of the two tail wings, and a clamping hole is provided on the circuit board (8) at a position corresponding to the circuit board fixing hook on the tail wing, and the circuit board fixing hook is clamped with the clamping hole; A circuit board fixing screw hole is provided on the lower surface of the other tail wing. After the fixing screw passes through the circuit board (8), it is screwed into the circuit board fixing screw hole to fix the tail wing and the circuit board (8) together.

4. The handheld laser rangefinder according to claim 2, wherein: The handheld laser rangefinder further includes a display screen fixing base (12) and a display screen (13) electrically connected to the circuit board (8); The upper surface of the optical bracket (7) is detachably connected to the display screen fixing seat (12), the display screen (13) is mounted on the display screen fixing seat (12), and a display screen window is provided in the mounting area of ​​the face shell (2) corresponding to the display screen (13); A plurality of function buttons (19) are provided on the upper surface of the face shell (2) corresponding to the installation area of ​​the tape measure device (4), and the plurality of function buttons (19) are electrically connected to the circuit board (8).

5. The handheld laser rangefinder according to claim 4, wherein: The lower surface of the display screen fixing seat (12) is provided with a plurality of limiting columns (14), and the upper surface of the optical bracket (7) is provided with limiting grooves (15) corresponding to the respective limiting columns (14), and the limiting columns (14) are inserted into the limiting grooves (15) in a one-to-one correspondence; A plurality of fixing seat slots (17) are provided on the left and right sides of the optical bracket (7); a fixing seat hook (16) is provided on the lower surface of the display screen fixing seat (12) at positions corresponding to the fixing seat slots (17); the fixing seat hooks (16) are inserted into the fixing seat slots (17) one by one and are engaged with the fixing seat slots (17); A first limiting step (29) is provided on the lower surface of the front end of the display screen fixing seat (12), and a blocking portion (30) is provided on the upper surface of the optical bracket (7). The blocking portion (30) abuts against the first limiting step (29), thereby limiting the display screen fixing seat (12) in the front-back direction.

6. The handheld laser rangefinder according to claim 2, wherein: The laser receiving module (11) comprises a light receiving lens (20), a filter (21), a filter bracket (22), an inner laser tube (23), an inner light button regulating valve (24) and a laser receiving module (25); Along the incident direction of the laser, a light receiving lens (20), a filter holder (22) equipped with a filter (21), and a laser receiving module (25) are sequentially arranged inside the optical holder (7); The inner light button regulating valve (24) and the inner laser tube (23) are arranged inside the optical bracket (7) and on one side of the laser incident light path.

7. The handheld laser rangefinder according to claim 2, wherein: The laser distance measuring device (3) further includes a battery (9) and a Type-C connector (18) electrically connected to the circuit board (8); The bottom shell (1) is provided with a battery (9) below the optical bracket (7), and a Type-C connector (18) is provided on the left side wall or the right side wall of the bottom shell (1).

8. The handheld laser rangefinder according to claim 7, wherein: The inner side wall of the bottom shell (1) is provided with a first limiting member (26) around the measuring tape device (4), and a second limiting member (27) is provided between the measuring tape device (4) and the battery (9), and the first limiting member (26) and the second limiting member (27) constitute a limiting portion for installing the measuring tape device; The inner side wall of the bottom shell (1) is provided with a third limiting member (28) on the front side of the battery (9), and second limiting steps (31) are provided on the left and right sides of the battery (9). The second limiting member (27), the third limiting member (28) and the second limiting step (31) constitute a battery installation limiting portion.

9. The handheld laser rangefinder according to claim 2, wherein: The laser distance measuring device (3) also includes a laser line projection module, which is mounted on the optical bracket (7).

Images