Anti-falling handheld laser range finder

Abstract

The utility model relates to the field of laser range finders, and particularly discloses an anti-drop handheld laser range finder, which comprises a rectangular laser range finder main body, a display screen, keys, a laser transmitter and a laser receiver, and is characterized in that the laser range finder main body is provided with an anti-drop structure; the anti-falling structure comprises a rectangular frame and a bottom plate which can move up and down and cover the edge of the top of the laser range finder body, a first elastic layer is arranged on the outer wall of the rectangular frame, the middle of the rectangular frame is connected with a transverse strip, the transverse strip is connected with the top face of the laser range finder body through a first connecting rod, and a first elastic piece is pressed between the transverse strip and the top face of the laser range finder body; the bottom plate is connected to the bottom face of the laser range finder body in a liftable mode through a second connecting piece, a second elastic layer is arranged on the bottom face of the bottom plate, and a second elastic piece is pressed between the bottom plate and the bottom face of the laser range finder body. The product can buffer impact force and particularly protect the vertex angle position; and anti-collision protection is carried out on the laser transmitter and the laser receiver.

Description

Technical Field

[0001] The utility model relates to the field of laser distance measuring instruments, in particular to an anti-fall type handheld laser distance measuring instrument. 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 to the target, and the photoelectric element receives the laser beam reflected by the target. The timer measures the time from the emission to the reception of the laser beam, and calculates the distance from the observer to the target. It can measure distance, area, and volume, and can be used both indoors and outdoors.

[0003] For example, the YHJ-200J handheld infrared laser rangefinder sold by Shandong Zhongzhong Intelligent Technology Co., Ltd. includes a rectangular laser rangefinder body, a display screen located on the upper front part of the laser rangefinder body, buttons located on the lower front part of the laser rangefinder body, and a laser transmitter and laser receiver located on the top of the laser rangefinder body. However, when using it, it was found that the device's anti-fall effect was relatively poor. The product was used in a relatively harsh environment and was easily damaged by falling, especially at the top of the laser transmitter and laser receiver near the top of the optical rangefinder body, as well as other top corners. Summary of the invention

[0004] In order to solve the above problems, the utility model provides a drop-proof handheld laser rangefinder, which can effectively improve the drop-proof effect, especially protect the laser transmitter, laser receiver and top corner position.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drop-proof handheld laser rangefinder, comprising a rectangular laser rangefinder body, a display screen arranged at the upper front part of the laser rangefinder body, a button arranged at the lower front part of the laser rangefinder body, a laser transmitter and a laser receiver arranged at the top of the laser rangefinder body, the laser rangefinder body is provided with an anti-drop structure, the anti-drop structure comprises a rectangular frame and a bottom plate which can be moved up and down and are arranged on the top edge of the laser rangefinder body, the outer wall of the rectangular frame is provided with a first elastic layer, the middle part of the rectangular frame is located next to the laser transmitter and the laser receiver and connected with a horizontal bar, the horizontal bar is connected to the top surface of the laser rangefinder body through a first connecting rod, the outer surface of the first connecting rod is provided with a first elastic member, and the first elastic member is pressed between the horizontal bar and the top surface of the laser rangefinder body; the bottom plate can be lifted and connected to the bottom surface of the laser rangefinder body through a second connecting member, the bottom surface of the bottom plate is provided with a second elastic layer, and the second elastic member is pressed between the bottom plate and the bottom surface of the laser rangefinder body. During use, when falling, the rectangular frame will move toward the laser rangefinder body to compress the first elastic member when it is hit, so as to achieve buffering and reduce the impact force. The first elastic layer further improves the buffering effect and can also protect the rectangular frame to avoid damage. When the bottom plate is hit, the second elastic member will move toward the laser rangefinder body to compress it, so as to achieve buffering and reduce the impact force. The second elastic layer can also protect the bottom plate and further improve the buffering effect. Thus, effective buffering protection is achieved at the top corners of the laser rangefinder body. Moreover, the design of the rectangular frame and the cross bar will not affect the normal use of the laser transmitter and the laser receiver. In addition, the laser transmitter and the laser receiver are protected by height increase, so as to block external impact to a certain extent.

[0006] Furthermore, the first elastic member and the second elastic member are both compression springs.

[0007] Furthermore, the first elastic layer and the second elastic layer are both made of rubber material.

[0008] Furthermore, arc-shaped recesses are provided on the left and right sides of the laser rangefinder body, and elastic gripping blocks are provided in the arc-shaped recesses. The elastic gripping blocks have a certain elasticity, and when gripping, the recesses fit the fingers of the person, making the gripping more stable.

[0009] Furthermore, the edge of the bottom plate exceeds the periphery of the bottom surface of the laser rangefinder body.

[0010] Furthermore, the front and rear sides of the bottom plate are provided with inserting edges, and the front and rear sides of the bottom of the laser rangefinder body are provided with slots for the inserting edges to be inserted and moved up and down, thereby further improving the stability of the bottom plate movement.

[0011] In summary, the beneficial effects of the utility model are as follows: when the top and bottom of the product are impacted, the rectangular frame and the bottom plate can be squeezed to move, compressing the first elastic member and the second elastic member to buffer the impact force, especially protecting the top corner position; and the design of the rectangular frame and the cross bar provides increased protection for the laser transmitter and the laser receiver, blocking external impact to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0014] Among them, the laser rangefinder body 1, the slot 11; the display screen 2; the button 3; the anti-fall structure 4, the rectangular frame 41, the first connecting rod 42, the first elastic member 43, the bottom plate 44, the insert edge 441, the second elastic member 45, the horizontal bar 46, the second connecting member 47; the elastic gripping block 5. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] like Figure 1 and 2 As shown, a drop-proof handheld laser rangefinder includes a laser rangefinder body 1, a display screen 2, a button 3, a laser transmitter and a laser receiver. The laser rangefinder body 1 is rectangular, the display screen 2 is arranged at the upper front part of the laser rangefinder body 1, the button 3 is arranged at the lower front part of the laser rangefinder body 1, and the laser transmitter and the laser receiver are arranged at the top of the laser rangefinder body 1. These structures are the same as those of existing products, such as the YHJ-200J handheld infrared laser rangefinder.

[0017] The improvement of this product is that: the laser rangefinder body 1 is provided with an anti-fall structure 4, which includes a rectangular frame 41 and a bottom plate 44. The rectangular frame 41 can be moved up and down and is covered on the top edge of the laser rangefinder body 1, that is, the rectangular frame 41 is a rectangular frame structure, the rectangular frame 41 is made of plastic, and a rectangular edge is provided on the periphery of the lower surface of the rectangular frame. An annular recess is formed on the periphery of the top of the laser rangefinder body 1, and the rectangular edge is inserted into the annular recess and can move up and down along the annular recess. The outer wall of the rectangular frame 41 is provided with a first elastic layer, and the first elastic layer is made of rubber material.

[0018] The rectangular frame 41 will not block the laser transmitter and the laser receiver, and the middle of the rectangular frame 41 is connected to a horizontal bar 46, which is also made of plastic. The horizontal bar 46 and the rectangular frame 41 are in an integrated structure. The horizontal bar 46 is located next to the laser transmitter and the laser receiver and will not block the laser transmitter and the laser receiver. The horizontal bar 46 can also prevent objects with a small volume from hitting the laser transmitter and the laser receiver. The horizontal bar 46 is connected to the top surface of the laser rangefinder body 1 through a first connecting rod 42, and the first connecting rod 42 is a first screw rod. The first elastic member 43 is disposed outside the first connecting rod 42, and the first elastic member 43 is pressed between the horizontal bar 46 and the top surface of the laser rangefinder body 1.

[0019] In addition, the bottom plate 44 can be lifted and connected to the bottom surface of the laser rangefinder body 1 through the second connecting member 47, and the edge of the bottom plate 44 exceeds the periphery of the bottom surface of the laser rangefinder body 1. The bottom plate 44 is also made of plastic, and the bottom surface of the bottom plate 44 is provided with a second elastic layer, which is also made of rubber material. The second elastic member 45 is pressed between the bottom plate 44 and the bottom surface of the laser rangefinder body 1. The first elastic member 43 and the second elastic member 45 are both compression springs, and the top of the second elastic member and the bottom surface of the laser rangefinder body 1 are preferably formed into a lower mounting groove for accommodating the second elastic member, and the top of the second elastic member 45 is fixed in the lower mounting groove by glue. The top surface of the laser rangefinder body 1 is preferably formed into an upper mounting groove for accommodating the first elastic member, and the bottom end of the first elastic member 43 is fixed in the upper mounting groove by glue.

[0020] In addition, in order to improve the stability of holding, arc-shaped recesses are provided on the left and right sides of the laser rangefinder body 1, and elastic gripping blocks 5 are provided in the arc-shaped recesses. The elastic gripping blocks 5 can be made of silicone or sponge, and a rubber layer is coated on the outside of the sponge for easy cleaning.

[0021] The front and rear sides of the bottom plate 44 are provided with inserting edges 441 , and the front and rear sides of the bottom of the laser rangefinder body 1 are provided with slots 442 , and the inserting edges 441 are inserted into the slots 442 and move up and down.

[0022] The usage process of this product is similar to that of YHJ-200J, so it will not be repeated here.

[0023] When the product falls, when the top of the laser rangefinder body 1 is hit, the rectangular frame 41 is hit and moves toward the laser rangefinder body 1, compressing the first elastic member 43 to buffer the impact, and the first elastic layer can also buffer. When the bottom of the laser rangefinder body 1 is hit, the bottom plate 44 is hit and moves toward the laser rangefinder body 1, compressing the second elastic member 45, thereby buffering the impact force, and the second elastic layer can also buffer.

[0024] The elastic gripping block 5 of the laser rangefinder body 1 is held with one hand, and the fingers press the elastic gripping block 5 tightly. The elastic gripping block 5 is pressed inward to fit the fingers, thereby improving the firmness of the grip.

[0025] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A drop-proof handheld laser rangefinder, comprising a rectangular laser rangefinder body (1), a display screen (2) arranged at the upper front portion of the laser rangefinder body (1), a button (3) arranged at the lower front portion of the laser rangefinder body (1), a laser transmitter and a laser receiver arranged at the top of the laser rangefinder body (1), characterized in that: The laser rangefinder body (1) is provided with an anti-fall structure (4), the anti-fall structure (4) comprising a rectangular frame (41) and a bottom plate (44) which are movably arranged on the top edge of the laser rangefinder body (1) up and down, the outer wall of the rectangular frame (41) is provided with a first elastic layer, the middle of the rectangular frame (41) is connected to a horizontal bar (46) located next to the laser transmitter and the laser receiver, the horizontal bar (46) is connected to the top surface of the laser rangefinder body (1) through a first connecting rod (42), a first elastic member (43) is arranged outside the first connecting rod (42), and the first elastic member (43) is pressed between the horizontal bar (46) and the top surface of the laser rangefinder body (1); the bottom plate (44) is connected to the bottom surface of the laser rangefinder body (1) by a second connecting member (47), the bottom surface of the bottom plate (44) is provided with a second elastic layer, and the second elastic member (45) is pressed between the bottom plate (44) and the bottom surface of the laser rangefinder body (1).

2. The drop-proof handheld laser rangefinder according to claim 1, characterized in that: The first elastic member (43) and the second elastic member (45) are both compression springs.

3. The drop-proof handheld laser rangefinder according to claim 1, characterized in that: The first elastic layer and the second elastic layer are both made of rubber material.

4. The drop-proof handheld laser rangefinder according to claim 3, characterized in that: The left and right sides of the laser rangefinder body (1) are provided with arc-shaped recessed portions, and elastic gripping blocks (5) are provided in the arc-shaped recessed portions.

5. The drop-proof handheld laser rangefinder according to claim 1, characterized in that: The edge of the bottom plate (44) exceeds the periphery of the bottom surface of the laser rangefinder body (1).

6. The drop-proof handheld laser rangefinder according to claim 1, characterized in that: The front and rear sides of the bottom plate (44) are provided with inserting edges (441), and the front and rear side sides of the bottom of the laser rangefinder body (1) are provided with slots (11) for the inserting edges (441) to be inserted and moved up and down.

Images