Handheld laser range finder

Abstract

The utility model discloses a hand-held laser range finder, and specifically relates to the technical field of laser range finders, the hand-held laser range finder comprises a laser range finder housing, a laser emitting module and a laser receiving module are fixedly arranged right in front of the laser range finder housing, and the rear side of the laser range finder housing is provided with a limiting assembly. A ball hinge used for connecting the limiting assembly is arranged between the laser range finder shell and the limiting assembly, and the limiting assembly comprises a connecting plate on the front side and an arc-shaped base plate on the rear side. According to the laser range finder, the limiting assembly is arranged on the rear side of the laser range finder shell, and the whole limiting assembly abuts against the position between the laser range finder shell and the body of an operator during measurement, so that the distance between the laser range finder shell and the body of the operator can be kept unchanged in the operation process; therefore, the position of the shell of the laser range finder is more stable during measurement, and the measurement precision is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser range finder technical field, more specifically, it is a kind of hand-held laser range finder. BACKGROUND

[0002] Engineering cost generally refers to when carrying out construction engineering, the various materials, labor services, mechanical equipment, construction method and construction period required by engineering are comprehensively evaluated and calculated, and in this process, it is inevitable to measure parameters such as distance and area, so laser range finder will be used.

[0003] Laser range finder is to emit laser to the object to be detected, and the laser runs at the speed of light, and after the laser reaches the object, it is reflected back and received, and the distance is judged by calculating the time of laser round trip, such as the prior art disclosed in the publication number CN117310656B, a kind of hand-held laser range finder.

[0004] In order to facilitate the use, the laser range finder in the prior art is generally small in size and can be held in hand, and in the process of hand-held measurement, the arm is slightly stretched forward, in this posture, the arm is difficult to keep completely still, which will lead to unstable position of the laser range finder, affecting the final measurement accuracy. UTILITY MODEL CONTENT

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a kind of hand-held laser range finder, by the limiting component between laser range finder shell and operator's body, the distance between laser range finder shell and operator's body can be kept unchanged during operation, thereby the position of laser range finder shell is more stable during measurement, and the measurement accuracy is improved.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a kind of hand-held laser range finder, including laser range finder shell, other components of laser range finder are located inside laser range finder shell, laser emission module and laser receiving module are fixed in the front of laser range finder shell, limiting component is arranged at the back of laser range finder shell, ball joint for connecting limiting component is arranged between laser range finder shell and limiting component;

[0007] The limiting component includes connecting plate on the front side and arc-shaped backing plate on the back side, the curve of arc-shaped backing plate is more fitted to human shoulder, two telescopic rods are arranged between arc-shaped backing plate and connecting plate, the two ends of telescopic rod are fixedly connected with arc-shaped backing plate and connecting plate respectively, and the spacing of arc-shaped backing plate and connecting plate and the length of limiting component as a whole can be adjusted by the extension and contraction of telescopic rod.

[0008] Further, the ball joint rear side is fixed with a front connector, the connecting plate front side is fixed with a rear connector, the rear connector is located directly behind the front connector, and a threaded sleeve is sleeved on the connection between the front connector and the rear connector, and the threaded sleeve is connected with the front connector and the rear connector through threads.

[0009] Further, one side of the laser range finder shell is fixed with a controller, the laser emitting module and the laser receiving module are arranged on the connecting end of the controller, the other side of the laser range finder shell is hingedly connected with a display screen, the display screen is arranged on the output end of the controller, detection data is displayed on the display screen, and the display screen can be folded or unfolded as required.

[0010] Further, the bottom end of the laser range finder shell is provided with a handheld handle, the handheld handle comprises two clamping plates symmetrically arranged front and back, four semicircular grooves arranged in a row are formed in the clamping plates, rubber gaskets are fixedly arranged on the inner walls of the semicircular grooves, the semicircular grooves on the front and back clamping plates can be one-to-one corresponding, and the two corresponding semicircular grooves can be buckled into a circular hole.

[0011] Further, the top end of the clamping plate is fixedly provided with an extension plate, the top end of the extension plate on the front side is fixedly connected with the laser range finder shell, and the top end of the extension plate on the back side is hingedly connected with the bottom end of the laser range finder shell.

[0012] Further, the bottom end of the clamping plate is fixedly provided with an extension plate, the top end of the extension plate on the front side is fixedly connected with the laser range finder shell, and the top end of the extension plate on the back side is hingedly connected with the bottom end of the laser range finder shell.

[0013] Further, the front side of the clamping plate on the front side is provided with two control buttons, the control buttons are arranged on the input end of the controller, the bottom end of the laser range finder shell is fixedly provided with a mounting block, the mounting block is located on the front side of the handheld handle, the front side of the mounting block is provided with a dust baffle, the dust baffle is fixedly provided with a reflecting lens, and one end of the dust baffle is hingedly connected with the front end of the mounting block through a damping rotating shaft.

[0014] The technical effects and advantages of the present application are as follows:

[0015] 1. The utility model discloses a limiting assembly is arranged on the rear side of the laser range finder shell, when measuring, the whole limiting assembly is arranged between the laser range finder shell and the operator's body, so that the distance between the laser range finder shell and the operator's body can be kept unchanged during operation, thereby the position of the laser range finder shell can be more stable during measurement, and the measurement precision is improved.

[0016] 2. The fingers of the operator are clamped between the two clamping plates by the elastic force of the tension spring, so that the fingers are clamped and fixed with the hand grip, the fixing strength of the hand and the hand grip is additionally increased, the gripping force is saved, and the hand holding is more labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure diagram of the utility model;

[0018] Figure 2 It is a hand grip structure diagram of the utility model; Figure 1 It is an enlarged view of A part in the middle;

[0019] Figure 3 It is a limiting assembly structure diagram of the utility model;

[0020] Figure 4 It is a schematic diagram of the use state of the reflecting mirror piece of the utility model;

[0021] Figure 5 It is a hand grip structure diagram of the utility model;

[0022] Figure 6 It is a system diagram of the utility model.

[0023] The figure mark is: 1, laser range finder shell; 101, laser emission module; 102, laser receiving module; 103, display screen; 2, limiting assembly; 201, arc-shaped backing plate; 202, telescopic rod; 203, connecting plate; 3, hand grip; 301, clamping plate; 302, semicircular groove; 303, rubber gasket; 304, end plate; 305, tension spring; 4, controller; 5, mounting block; 6, dust baffle; 7, reflecting mirror piece; 8, ball joint; 9, control button. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model.

[0025] With reference to the drawings in the description, Figures 1-6 The utility model provides a kind of hand-held laser range finder, including laser range finder shell 1, other components of laser range finder are located in laser range finder shell 1 inside, laser emission module 101 and laser receiving module 102 are fixedly arranged in the front of laser range finder shell 1, the rear side of laser range finder shell 1 is equipped with limiting assembly 2, ball joint 8 for connecting limiting assembly 2 is equipped between laser range finder shell 1 and limiting assembly 2, laser emission module 101 and laser receiving module 102 jointly constitute ranging module, and model is LS-ADC-F3-905-1200;

[0026] The laser range finder shell 1 is fixed with a controller 4 on one side, the model of the controller 4 is STM32F303, the laser emitting module 101 and the laser receiving module 102 are arranged on the connecting end of the controller 4, the laser range finder shell 1 is hingedly connected with a display screen 103 on the other side, the model of the display screen 103 is ST7796lcd liquid crystal screen, the display screen 103 is arranged on the output end of the controller 4, the detection data is displayed on the display screen 103, and the display screen 103 can be folded or unfolded according to the need.

[0027] When measuring the distance, the laser emitting module 101 emits laser to the detected object, the laser is reflected after meeting the object and is received by the laser receiving module 102, the time of the laser round trip is calculated by the controller 4, so that the numerical value of the distance is obtained, the display screen 103 is unfolded during use, and the numerical value is directly displayed on the display screen 103, and the display screen 103 is folded during idling, so that the space is saved.

[0028] In order to keep the laser range finder stable during operation, as shown in Figure 1 , Figure 3 The limiting assembly 2 comprises a connecting plate 203 on the front side and an arc-shaped backing plate 201 on the back side, the curve of the arc-shaped backing plate 201 is more fitted to the human shoulder, two telescopic rods 202 are arranged between the arc-shaped backing plate 201 and the connecting plate 203, the two ends of the telescopic rod 202 are fixedly connected with the arc-shaped backing plate 201 and the connecting plate 203 respectively, and the spacing between the arc-shaped backing plate 201 and the connecting plate 203 and the length of the limiting assembly 2 as a whole can be adjusted through the telescopic rod 202.

[0029] The front connecting head is fixedly arranged on the back side of the ball joint 8, the rear connecting head is fixedly arranged on the front side of the connecting plate 203, the rear connecting head is located directly behind the front connecting head, and the threaded sleeve is sleeved on the connecting position of the front connecting head and the rear connecting head, the threaded sleeve is connected with the front and rear connecting heads through threads, and the laser range finder shell 1 can rotate relative to the limiting assembly 2 through the ball joint 8, so that the angle of the laser range finder shell 1 during measurement can be adjusted.

[0030] When idle, the limiting assembly 2 and the laser range finder shell 1 are separated, which is convenient for storage. When in use, the limiting assembly 2 is connected to the rear side of the laser range finder shell 1, and the telescopic rod 202 is adjusted according to the arm length, height and operation habit of the operator, so as to adjust the length of the limiting assembly 2 as a whole. Then, the laser range finder shell 1 is held and controlled by one hand to perform measurement work. At this time, the arm is slightly stretched forward, and the arc-shaped pad plate 201 is tightly abutted against the same side of the shoulder or the lower part of the shoulder. Since the entire limiting assembly 2 is abutted between the laser range finder shell 1 and the body of the operator, the distance between the laser range finder shell 1 and the body of the operator can be kept unchanged during operation. Compared with the arm, the position of the body is more stable, so as to increase the stability of the position of the laser range finder shell 1 during measurement, and further improve the measurement accuracy.

[0031] In order to facilitate one-handed operation, as shown in Figure 1 , Figure 4 , Figure 5 , the bottom end of the laser range finder shell 1 is provided with a hand-held handle 3. The hand-held handle 3 includes two clamping plates 301 symmetrically arranged front and back. Four semicircular grooves 302 arranged in up and down are formed in the clamping plate 301. Rubber gaskets 303 are fixedly arranged on the inner wall of the semicircular grooves 302. The semicircular grooves 302 on the front and back clamping plates 301 can be one-to-one corresponding. Two corresponding semicircular grooves 302 can be buckled into a circular hole. Four fingers except the thumb are respectively inserted into four circular holes.

[0032] When holding by hand, four hands are respectively inserted into four circular holes, the fingers are clamped between the two clamping plates 301, and the palm is held at the outer end of the rear clamping plate 301. The rubber gasket 303 increases the comfort of holding through its own elastic force.

[0033] When holding by hand, it is necessary to prevent the hand from falling off and save more labor. As shown in Figure 4 , Figure 5 , the top end of the clamping plate 301 is fixedly provided with an extension plate. The top end of the front extension plate is fixedly connected with the laser range finder shell 1, and the top end of the rear extension plate is hingedly connected with the bottom end of the laser range finder shell 1.

[0034] The bottom end of the two clamping plates 301 is fixedly provided with an end plate 304. A tension spring 305 is arranged between the two end plates 304. The two ends of the tension spring 305 are fixedly connected with the two end plates 304 respectively.

[0035] When the fingers are fixed in the round hole, the rear clamping plates 301 need to be turned backward to separate the two clamping plates 301 appropriately, and the separation of the two clamping plates 301 will elongate the tension spring 305, and the elastic force of the tension spring 305 will pull the rear clamping plate 301 to clamp the fingers between the two clamping plates 301 appropriately, so as to prevent the hand from slipping off the handle 3, and the fingers are clamped and fixed with the handle 3, which additionally increases the fixing strength of the hand and the handle 3, saves the gripping force, and makes the hand holding more labor-saving.

[0036] For convenient operation, as shown in Figure 4 、 Figure 6 The front clamping plates 301 are provided with two control buttons 9 on the front side, the control buttons 9 are arranged at the input end of the controller 4, the mounting block 5 is fixedly arranged at the bottom end of the laser range finder shell 1, the mounting block 5 is located on the front side of the handle 3, the dustproof baffle 6 is arranged on the front side of the mounting block 5, the reflecting lens 7 is fixedly arranged on the dustproof baffle 6, and one end of the dustproof baffle 6 is hingedly connected with the front end of the mounting block 5 through a damping rotating shaft.

[0037] When the dustproof baffle 6 is upward, it can be arranged in front of the laser emitting module 101 and the laser receiving module 102, and when it is idle, it can prevent dust from polluting the laser emitting module 101 and the laser receiving module 102, and when it is used, the dustproof baffle 6 is rotated downward as a whole, and the reflecting lens 7 on the dustproof baffle 6 is rotated to the front of the handle 3, at this time, the words marked on the control button 9 can be reflected in the reflecting lens 7, and the operator can directly observe the operation of the control button 9 through the reflecting lens 7, and the words marked on the control button 9 are mirror image words and can be recognized after being reflected through the reflecting lens 7.

[0038] Finally, the above-mentioned is only the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A handheld laser range finder, comprising a laser range finder shell (1), a laser emission module (101) and a laser receiving module (102) are fixedly arranged at the front of the laser range finder shell (1), characterized in that: The rear side of the laser range finder shell (1) is provided with a limiting assembly (2), and a ball joint (8) for connecting the limiting assembly (2) is arranged between the laser range finder shell (1) and the limiting assembly (2). The limiting assembly (2) comprises a connecting plate (203) at the front side and an arc-shaped backing plate (201) at the rear side, and two telescopic rods (202) are arranged between the arc-shaped backing plate (201) and the connecting plate (203).

2. The handheld laser rangefinder of claim 1, wherein: A front connecting head is fixedly arranged at the rear side of the ball joint (8), a rear connecting head is fixedly arranged at the front side of the connecting plate (203), the rear connecting head is located directly behind the front connecting head, and a threaded sleeve is sleeved at the connection position of the front connecting head and the rear connecting head.

3. The handheld laser rangefinder of claim 1, wherein: A controller (4) is fixedly arranged at one side of the laser range finder shell (1), the laser emitting module (101) and the laser receiving module (102) are connected with the controller (4), and a display screen (103) is hingedly arranged at the other side of the laser range finder shell (1), and the display screen (103) is arranged at the output end of the controller (4).

4. The handheld laser rangefinder of claim 3, wherein: A hand-held handle (3) is fixedly arranged at the bottom end of the laser range finder shell (1), the hand-held handle (3) comprises two clamping plates (301) symmetrically arranged front and back, four semicircular grooves (302) arranged in a vertical row are formed in the clamping plates (301), rubber gaskets (303) are fixedly arranged on the inner walls of the semicircular grooves (302), the semicircular grooves (302) on the front and back clamping plates (301) can be one-to-one corresponding, and the two corresponding semicircular grooves (302) can be buckled to form a circular hole.

5. A hand-held laser range finder according to claim 4, wherein: An extension plate is fixedly arranged at the top end of the clamping plate (301), the top end of the extension plate at the front side is fixedly connected with the laser range finder shell (1), and the top end of the extension plate at the rear side is hingedly connected with the bottom end of the laser range finder shell (1).

6. A hand-held laser range finder according to claim 5, wherein: End plates (304) are fixedly arranged at the bottom ends of the two clamping plates (301), and a tension spring (305) is arranged between the two end plates (304), and the two ends of the tension spring (305) are fixedly connected with the two end plates (304).

7. The handheld laser rangefinder of claim 4, wherein: Two control buttons (9) electrically connected with the controller (4) are arranged at the front side of the clamping plate (301) at the front side, an installation block (5) is fixedly arranged at the bottom end of the laser range finder shell (1), the installation block (5) is located at the front side of the hand-held handle (3), a dust baffle (6) is arranged at the front side of the installation block (5), a reflecting lens (7) is fixedly arranged on the dust baffle (6), and one end of the dust baffle (6) is hingedly connected with the front end of the installation block (5).

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