CN212410858U

CN212410858U - Handheld laser range finder

Info

Publication number: CN212410858U
Application number: CN202020502664.9U
Authority: CN
Inventors: 兰伟兴; 李仲良; 霍江华; 柯坚
Original assignee: Guangxi Safety Engineering College
Current assignee: Guangxi Safety Engineering College
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2021-01-26
Anticipated expiration: 2030-04-08

Abstract

The utility model relates to a measuring tool field specifically discloses a handheld laser range finder, including body, expansion box and two pointer spirit levels, extend the box and install in the rear end of body, extend the rear end face and the right-hand member face of box and set to first vertical face and the vertical face of second respectively, install pointer spirit level on first vertical face and the vertical face of second respectively. When the user openly held this distancer, the condition that is located the pointer spirit level on the first vertical face can accurately reflect distancer horizontal hunting, and the pointer spirit level that is located on the second vertical face can accurately reflect the condition of distancer tilt from beginning to end, and when two equal vertical downings of pointer, the user can judge naturally whether enough the distancer is competent based on the instruction of these two pointer spirit levels. And the first vertical surface and the second vertical surface are positioned at adjacent positions, so that the observation of a user is facilitated.

Description

Handheld laser range finder

Technical Field

The utility model belongs to the measuring tool field, in particular to handheld laser range finder.

Background

According to the principle of laser ranging, laser needs to be reflected back to acquire phase information so as to obtain distance information. The precision range finding usually needs the cooperation of total reflection prism, and the measurement of information such as regular house and traffic road width length can be directly with smooth wall reflection measurement, no matter which kind of mode above-mentioned, all need guarantee laser perpendicular to measuring object plane as far as possible to reach best effect. In the field, particularly for measuring houses and traffic sections, heavy laser range finders have high accuracy, but are heavy and troublesome to carry; to some occasions that only need simply check and judge the distance, use light handheld laser range finder can.

The measuring distance of the handheld laser range finder on the market is generally within 200m, the precision is about 2mm, whether laser is perpendicular to a measuring object plane or not is judged by depending on hand feeling of a user, or the closest value is obtained by repeatedly trying to measure for multiple times. How to improve the efficiency and the accuracy of the handheld laser distance measuring instrument at the user end, the measurement efficiency is improved and the operation threshold is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can instruct flat handheld laser range finder of user end.

In order to realize the above-mentioned purpose, the utility model provides a handheld laser range finder, including the body, still including extending box and two pointer spirit levels, extend the box and install in the rear end of body, extend the rear end face of box and set first vertical face, extend the left end face or the right-hand member face of box and set the vertical face of second, first vertical face with the vertical face of second is parallel with vertical direction, first vertical face with the vertical face mutually perpendicular of second, first vertical face with install pointer spirit level on the vertical face of second respectively, each after the installation pointer spirit level is in the vertical face, works as when the body keeps the horizontal vertical state, two the equal vertical orientation of pointer spirit level's pointer is downwards.

Adopt above-mentioned technical scheme, when the user openly held this distancer, the pointer spirit level that is located on the first vertical face can accurately reflect the condition of distancer horizontal hunting, and the pointer spirit level that is located on the second vertical face can accurately reflect the condition of distancer tilt from beginning to end, and when two equal vertical downings of pointer, the user can judge naturally whether enough the distancer is competent based on the instruction of these two pointer spirit levels. And the first vertical surface and the second vertical surface are positioned at adjacent positions, so that the observation of a user is facilitated.

In other solutions, the expansion box and the body are of an integral structure, i.e. the shell of the body suitably extends backwards and is directly connected with the pointer level at the rear end.

As an improvement of the scheme, the expansion box is detachably connected with the body. The front end of the expansion box is provided with one pair or two pairs of buckles, the meshing directions of the buckles in each pair face each other, and the buckles in each pair clamp the upper side or the lower side or the left side and the right side of the body.

By adopting the technical scheme, the expansion box and the pointer type level meter can be designed independently and then flexibly mounted on a proper range finder, so that the traditional range finder does not need to be greatly improved, and the application scene can be expanded.

In other schemes, the connection mode of the expansion box and the body can also be a bolt connection mode, for example, screw holes are formed in the same sides of the expansion box and the body, then a connecting plate is covered between the expansion box and the body, and the expansion box and the body are respectively fixed at the head end and the tail end of the connecting plate.

As an improvement of the scheme, the buckles and the expansion box are hinged, torsion springs are arranged at the hinged positions, and the torsion springs provide initial force for enabling the buckles to be close to each other. By adopting the technical scheme, the efficiency of connection or separation of the expansion box and the body is improved.

As an improvement of the scheme, the expansion box is of a cubic structure, and the edge of the expansion box is rounded. Since the expansion box only needs two vertical surfaces (the two vertical surfaces are directly and well kept perpendicular), in other schemes, other surfaces of the expansion box can be made into a slope shape or eliminated, and only a structure similar to angle steel (the cross section is L-shaped, and two vertical surfaces perpendicular to each other are provided) is reserved.

As an improvement of the scheme, the expansion box is made of plastic materials and used for reducing the weight of the whole expansion box and ensuring that the range finder is still convenient to hold after the expansion box is installed.

As an improvement of the scheme, grooves for accommodating the pointer levels are formed in the first vertical surface and the second vertical surface, and the depth of each groove is larger than the thickness of each pointer level. By adopting the scheme, the outer wall of the expansion box keeps smooth, and the appearance is better.

As an improvement of the scheme, the expansion box is directly injected by adopting a one-step molding process, and two grooves are formed simultaneously.

As an improvement of the scheme, the outline of the pointer type level meter is a cylinder, the front face of the pointer type level meter is transparent, a cavity and a pointer are arranged inside the pointer type level meter, the cavity is hinged with the pointer through a rotating shaft, the head end and the tail end of the pointer are divided by taking the rotating shaft as a dividing point, and the head weight of the pointer is larger than the tail weight of the pointer so that the head of the pointer is naturally downward.

As an improvement of the scheme, the body comprises a processor, a measuring module, a memory and a sound generator, wherein the processor is electrically connected with the measuring module, the memory and the sound generator respectively, a plurality of distance specifications are recorded into the memory, and each distance specification comprises a plurality of safe distance intervals.

When the distance measuring device is used, a user selects an applicable distance standard, the processor acquires data and then compares the data with a safe distance interval, safety is prompted when the data fall into the safe distance interval, and danger is prompted when the data leave the safe distance interval; by adopting the technical scheme, when the attention of the user is focused on the two pointer type gradienters, the sound generator can transmit a logic judgment result, so that the user can conveniently master the situation.

The utility model has the advantages that: simple structure also conveniently reforms transform traditional distancer, and the use scene is extensive.

Drawings

FIG. 1 is a schematic view of the rangefinder in this embodiment viewed from the rear;

fig. 2 is a schematic view of the expanding box as viewed from the rear in the present embodiment.

Description of reference numerals: 10. a body; 20. expanding the box; 21. a first vertical face; 22. a second vertical face; 30. a pointer-type level gauge; 40. and (5) buckling.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

With specific reference to fig. 1 and 2, the utility model discloses a handheld laser range finder mainly includes body 10, extends box 20 and two pointer spirit levels 30. Referring to the prior art, the core function of the body 10 remains unchanged, and the main invention is to add the expansion box 20, optimize the holding direction by using the expansion box 20, and indicate the user to keep balance.

As shown in fig. 1, the expansion box 20 and the body 10 are of an integrated structure, the dotted line is used to indicate the orientation of the expansion box 20 and the body 10, the expansion box 20 is located at the rear end of the body 10 (the lower left is the rear, and the upper right is the front), the front end of the body 10 can emit and receive laser, and the other sides of the body 10 are provided with a display screen and an operation case for displaying data and operation. The rear end face of the expansion box 20 is set to be a first vertical face 21, the right end face of the expansion box 20 is set to be a second vertical face 22, and the first vertical face 21 and the second vertical face 22 are parallel to the vertical direction and are perpendicular to each other. The left-right width and the up-down height of the expansion box 20 in fig. 1 are substantially equal to those of the body 10.

This embodiment is a left-handed rangefinder, ensuring that both pointer levels 30 are mounted close to the viewing area of the user's field of view. When the pointer levels 30 of the second vertical surface 22 are moved to the left end surface of the expanded case 20, a right-hand grip can be employed, and it is also possible to ensure that both pointer levels 30 are located on the side close to the user's visual field observation area.

The outline of pointer spirit level 30 is flat cylinder, the front of pointer spirit level 30 sets up to transparent form, the inside of pointer spirit level 30 has cavity and pointer, the space of pointer activity is accomodate and is provided to the cavity, the cavity passes through the articulated pointer of pivot to the pivot is the head and the tail both ends of demarcation point partition pointer, the head weight of pointer is greater than the afterbody weight and makes the head of pointer is down naturally.

In fig. 1, it can be seen that both hands are facing vertically downwards, indicating that the entire rangefinder is neither tilted forwards or backwards, nor tilted to the left or right.

In fig. 1, it can be seen that the extension case 20 and the body 10 are rounded at their peripheries to optimize the hand feeling of the grip.

On the basis of the above structure, the structure is further improved, as shown in fig. 2, an embodiment of a detachable structure is adopted for the expansion box 20. The upper side and the lower side of the front end of the expansion box 20 are both provided with a buckle 40 (the buckle 40 positioned below is blocked and is not shown temporarily), the buckle 40 and the expansion box 20 are connected in a hinged mode, and meanwhile, a torsion spring is arranged at the hinged position. It can be seen in fig. 2 that the hooks 40 are opened backward, but the hooks 40 are inclined forward in a natural state, and when the hooks 40 on the upper and lower sides are inclined forward at the same time, the two hooks 40 can hold the upper and lower sides of the body 10, ensuring stable connection.

Further, the outer end of the buckle 40 is provided with a barb to increase the biting force. Further, a second pair of buckles 40 may be additionally provided at left and right sides of the expansion box 20 for clamping left and right sides of the body 10.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. The utility model provides a handheld laser range finder, includes the body, its characterized in that: the novel expansion box is characterized by further comprising an expansion box and two pointer type gradienters, wherein the expansion box is installed at the rear end of the body, the rear end face of the expansion box is set to be a first vertical face, the left end face or the right end face of the expansion box is set to be a second vertical face, the first vertical face and the second vertical face are parallel to the vertical direction, the first vertical face and the second vertical face are perpendicular to each other, the pointer type gradienters are installed on the first vertical face and the second vertical face respectively, the installed pointer type gradienters are located in the vertical faces, and when the body keeps a horizontal vertical state, the pointers of the two pointer type gradienters are all vertically downward.

2. The hand-held laser rangefinder of claim 1, wherein: the expansion box is detachably connected with the body.

3. The hand-held laser rangefinder of claim 2, wherein: the front end of the expansion box is provided with one pair or two pairs of buckles, the meshing directions of the buckles in each pair face each other, and the buckles in each pair clamp the upper side or the lower side or the left side and the right side of the body.

4. The hand-held laser rangefinder of claim 3, wherein: each buckle and the expansion box are hinged, a torsion spring is arranged at the hinged position, and the torsion spring provides initial force for the buckles to mutually approach.

5. The hand-held laser rangefinder of claim 1, wherein: the expansion box is of a cubic structure, and the edge of the expansion box is rounded.

6. The hand-held laser rangefinder of claim 5, wherein: the expansion box is made of plastic.

7. The hand-held laser rangefinder of claim 6, wherein: the first vertical surface and the second vertical surface are provided with grooves for accommodating the pointer type gradienters, and the depth of the grooves is larger than the thickness of the pointer type gradienters.

8. The hand-held laser rangefinder of claim 1, wherein: the outer contour of the pointer type level meter is a cylinder, the front face of the pointer type level meter is arranged to be transparent, a cavity and a pointer are arranged inside the pointer type level meter, the cavity is hinged to the pointer through a rotating shaft, the rotating shaft is used as a dividing point to divide the head end and the tail end of the pointer, and the weight of the head portion of the pointer is larger than the weight of the tail portion of the pointer, so that the head portion of the pointer faces downwards naturally.

9. The hand-held laser rangefinder of any of claims 1 to 8, wherein: the body includes treater, measurement module, memory and pronunciation ware are connected to the treater electricity respectively, a plurality of distance specification is typeeed to the memory, every the distance specification includes a plurality of safe distance interval.