Protective device for laser range finder

Abstract

The utility model relates to the technical field of distance measuring equipment, and discloses a laser distance measuring instrument protection device which comprises a fixed base, the top end of the fixed base is fixedly connected with a supporting chassis, and the upper surface of the supporting chassis is fixedly connected with two mounting plates which are symmetrical in position. A movable rod is rotationally connected between the two mounting plates through a bearing, a supporting column is fixedly connected to the surface of the movable rod, and a limiting fixing plate is fixedly connected to the top end of the supporting column. By arranging the supporting column and the positioning block, the supporting column can be used for driving the positioning block to rotate by different angles between the two mounting plates, so that the measurement angle of the range finder can be conveniently adjusted, and when the angle of the range finder is adjusted, only the movable plate needs to be pressed downwards, then the angle of the limiting fixed plate is adjusted, and the angle of the range finder can be conveniently adjusted. And then the movable plate is loosened, and the limiting clamping block is driven to abut against and limit the positioning block upwards under the action of the compression spring, so that the positioning block is limited, and operation is easier and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of ranging devices, and more specifically to a protective device for a laser rangefinder. Background Art

[0002] A laser rangefinder is an instrument that accurately measures the distance to a target using a laser. As a commonly used tool in engineering surveys, the laser rangefinder has the advantages of fast measurement speed, high accuracy, portability, etc., and is widely applicable to on-site ranging work.

[0003] According to patent retrieval, an adjustable laser rangefinder with the publication number CN213930154U includes a rangefinder body. A protective shell for protecting the rangefinder body is installed on the outer side of the back surface of the rangefinder body. A heat dissipation component for dissipating heat from the rangefinder body during use is provided on the back surface of the protective shell. This adjustable laser rangefinder can effectively dissipate heat from the rangefinder body during the use process of the rangefinder body, further improving the service life of the rangefinder body. And through the protective adjustment device provided on the outer side of the protective shell, it is not only convenient to arbitrarily adjust the use angle of the rangefinder body, but also plays a protective role for the rangefinder body under the protection of the protective shell and the accommodating shell during the non-use or handling process of the rangefinder body, without the need to disassemble between the rangefinder body and the bracket, thus facilitating the use of the rangefinder body.

[0004] The adjustable laser rangefinder proposed in the above patent document, in the actual use process, only uses fixing plates on both sides of the rangefinder to clamp and limit it, not only has poor stability in limiting the rangefinder, but also cannot be adaptively adjusted according to the size of the rangefinder. And when adjusting the measurement angle of the rangefinder, it is necessary to rotate the positioning bolt to position the angle of the rangefinder, and the operation is cumbersome and not convenient. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a protective device for a laser rangefinder, which has the advantages of convenient adjustability, etc., to solve the problems existing in the above background art.

[0006] The utility model provides the following technical solution: A protective device for a laser rangefinder includes a fixed base. A support chassis is fixedly connected to the top end of the fixed base. Two symmetrically arranged mounting plates are fixedly connected to the upper surface of the support chassis. A movable rod is rotatably connected between the two mounting plates through a bearing. A support column is fixedly connected to the surface of the movable rod. A limit fixing plate is fixedly connected to the top end of the support column. A limit component is arranged on the surface of the limit fixing plate. The limit fixing plate is used for limiting and fixing the rangefinder.

[0007] The bottom end of the support column is fixedly connected with a semi-circular positioning block. The upper surface of the support chassis is fixedly connected with a strip-shaped shell. The inner wall of the strip-shaped shell is fixedly connected with a guide rod. The surface of the guide rod is slidably connected with a movable plate. The upper surface of the movable plate is fixedly connected with a limit clamping block. The top of the limit clamping block extends to the outside of the strip-shaped shell, and the position of the limit clamping block corresponds to that of the positioning block. The surface of the positioning block is fixedly connected with a rubber anti-slip sheet, and the top end of the limit clamping block is lapped on the surface of the rubber anti-slip sheet.

[0008] Further, a compression spring is sleeved on the surface of the guide rod. The top end of the compression spring is fixedly connected with the lower surface of the movable plate. A through hole matching the limit clamping block is opened on the upper surface of the strip-shaped shell, and the limit clamping block is slidably connected with the inner wall of the through hole.

[0009] Further, one end of the movable plate extends to the outside of the strip-shaped shell, and a pressing block is fixedly connected to the upper surface of the movable plate.

[0010] Further, the limiting assembly includes a rectangular box fixedly connected to the tail of the limiting fixed plate. Guide holes are opened at both the left and right ends of the rectangular box. The inner walls of the guide holes are slidably connected with limiting rods. One end of each limiting rod is fixedly connected with a limiting plate. The surface of the limiting plate is fixedly connected with a clamping block, and the clamping block is used for clamping and limiting the two sides of the tail of the rangefinder.

[0011] Further, a baffle is fixedly connected to the end of the limiting rod away from the limiting plate. A return spring is sleeved on the surface of the limiting rod. One end of the return spring is fixedly connected with the surface of the baffle, and the other end of the return spring is fixedly connected with the inner wall of the rectangular box.

[0012] Further, two guide shells are fixedly connected to the lower surface of the limiting fixed plate. The inner walls of the guide shells are slidably connected with pull rods. The ends of the two pull rods are fixedly connected with pressing plates. A plurality of anti-slip rubber blocks are fixedly connected to the surfaces of the two pressing plates.

[0013] Further, an adjusting screw rod is rotatably arranged on the lower surface of the limiting fixed plate. The surface of the adjusting screw rod is threadedly connected with an adjusting plate. The two ends of the adjusting plate are respectively fixedly connected with the surfaces of the two pull rods.

[0014] Further, an adjusting knob is fixedly connected to the end of the adjusting screw rod. A plurality of heat dissipation holes are opened on the surface of the limiting fixed plate.

[0015] The technical effects and advantages of the present utility model:

[0016] 1. By providing support columns and positioning blocks, the utility model can drive the positioning blocks to rotate at different angles between two mounting plates through the support columns, thus facilitating the adjustment of the measurement angle of the rangefinder. When adjusting the angle of the rangefinder, only need to press down the movable plate, then adjust the angle of the limit fixing plate, and then release the movable plate. Under the action of the compression spring, drive the limit clamping block to move upward to tightly limit the positioning block, so as to realize the limitation of the positioning block, and the operation is more simple and convenient.

[0017] 2. By providing a limit assembly on the surface of the limit fixing plate, the utility model can drive two clamping blocks to clamp and limit the tail of the rangefinder through the return spring, and then drive two pull rods to move by adjusting the screw rod, and further drive the pressing plate to tightly limit the front end of the rangefinder, so as to achieve the fixing effect on the rangefinder, and it is applicable to limit rangefinders of different specifications and sizes. Brief Description of the Drawings

[0018] Figure 1 is the front view structural schematic diagram of the utility model;

[0019] Figure 2 is the side view structural schematic diagram of the utility model;

[0020] Figure 3 is the schematic diagram of the bottom turning view of the limit fixing plate of the utility model;

[0021] Figure 4 is the side sectional structural schematic diagram of the strip-shaped shell of the utility model;

[0022] Figure 5 is the partial top sectional structural schematic diagram of the rectangular box of the utility model.

[0023] Reference numerals are: 1, fixed base; 2, support chassis; 3, mounting plate; 4, movable rod; 5, support column; 6, limit fixing plate; 7, positioning block; 8, strip-shaped shell; 9, guide rod; 10, movable plate; 11, limit clamping block; 12, rubber anti-slip sheet; 13, compression spring; 14, pressing block; 15, rectangular box; 16, limit rod; 17, limit plate; 18, clamping block; 19, return spring; 20, guide shell; 21, pull rod; 22, pressing plate; 23, anti-slip rubber block; 24, adjusting screw rod; 25, adjusting plate; 26, adjusting knob. Detailed Description of the Invention

[0024] The technical solutions in the present utility model will be clearly and completely described below in conjunction with the accompanying drawings of the present utility model. In addition, the forms of the various structures described in the following embodiments are merely examples, and a laser rangefinder protection device related to the present utility model is not limited to the various structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0025] Referring to Figures 1-5 , the present utility model provides a laser rangefinder protection device, including a fixed base 1. The top end of the fixed base 1 is fixedly connected with a support chassis 2. The upper surface of the support chassis 2 is fixedly connected with two symmetrically arranged mounting plates 3. A movable rod 4 is rotatably connected between the two mounting plates 3 through a bearing. A support column 5 is fixedly connected to the surface of the movable rod 4.

[0026] The top end of the support column 5 is fixedly connected with a limit fixing plate 6. A plurality of heat dissipation holes are formed in the surface of the limit fixing plate 6. A limit assembly is arranged on the surface of the limit fixing plate 6. The limit fixing plate 6 is used for limiting and fixing the rangefinder.

[0027] The limit assembly includes a rectangular box 15 fixedly connected to the tail of the limit fixing plate 6. Guide holes are formed at both the left and right ends of the rectangular box 15. A limit rod 16 is slidably connected to the inner wall of the guide hole. One end of the limit rod 16 is fixedly connected with a limit plate 17. A clamping block 18 is fixedly connected to the surface of the limit plate 17. The clamping block 18 is used for clamping and limiting both sides of the tail of the rangefinder.

[0028] A baffle is fixedly connected to the end of the limit rod 16 away from the limit plate 17. A return spring 19 is sleeved on the surface of the limit rod 16. One end of the return spring 19 is fixedly connected to the surface of the baffle, and the other end of the return spring 19 is fixedly connected to the inner wall of the rectangular box 15.

[0029] Two guide shells 20 are fixedly connected to the lower surface of the limit fixing plate 6. A pull rod 21 is slidably connected to the inner wall of the guide shell 20. Clamping plates 22 are fixedly connected to the ends of the two pull rods 21. A plurality of anti-slip rubber blocks 23 are fixedly connected to the surfaces of the two clamping plates 22. An adjusting screw rod 24 is rotatably arranged on the lower surface of the limit fixing plate 6. An adjusting knob 26 is fixedly connected to the end of the adjusting screw rod 24. An adjusting plate 25 is threadedly connected to the surface of the adjusting screw rod 24. The two ends of the adjusting plate 25 are respectively fixedly connected to the surfaces of the two pull rods 21.

[0030] It should be noted that by providing a limiting component on the surface of the limiting fixing plate 6, after placing the rangefinder on the surface of the limiting fixing plate 6, the reset spring 19 drives the two limiting rods 16 and the limiting plate 17 to move inside the rectangular box 15, thereby driving the two clamping blocks 18 to clamp and limit the tail of the rangefinder. Then, by rotating the adjusting knob 26, the adjusting screw rod 24 is driven to rotate, and the adjusting screw rod 24 drives the adjusting plate 25 and the two pull rods 21 to move, thereby driving the pressing plate 22 to tightly limit the front end of the rangefinder, thus achieving the fixing effect on the rangefinder and being applicable to limiting rangefinders of different specifications and sizes.

[0031] The bottom end of the support column 5 is fixedly connected with a semi-circular positioning block 7. The upper surface of the support chassis 2 is fixedly connected with a strip-shaped shell 8. The inner wall of the strip-shaped shell 8 is fixedly connected with a guide rod 9. The surface of the guide rod 9 is slidably connected with a movable plate 10. A compression spring 13 is sleeved on the surface of the guide rod 9. The top end of the compression spring 13 is fixedly connected with the lower surface of the movable plate 10.

[0032] The upper surface of the movable plate 10 is fixedly connected with a limiting block 11. A through hole matching the limiting block 11 is opened on the upper surface of the strip-shaped shell 8. The limiting block 11 is slidably connected with the inner wall of the through hole. The top of the limiting block 11 extends to the outside of the strip-shaped shell 8, and the position of the limiting block 11 corresponds to that of the positioning block 7. A rubber anti-slip sheet 12 is fixedly connected to the surface of the positioning block 7. The top end of the limiting block 11 is lapped with the surface of the rubber anti-slip sheet 12. By providing the rubber anti-slip sheet 12, the anti-slip effect between the positioning block 7 and the limiting block 11 can be improved, and the stability of limiting the positioning block 7 can be enhanced. One end of the movable plate 10 extends to the outside of the strip-shaped shell 8, and a pressing block 14 is fixedly connected to the upper surface of the movable plate 10.

[0033] By providing a rotatable support column 5 and a positioning block 7 between the two mounting plates 3, when adjusting the angle of the rangefinder, only need to push down the pressing block 14 and the movable plate 10, then adjust the angle of the limiting fixing plate 6, and then release the movable plate 10. Under the action of the compression spring 13, the limiting block 11 on the surface of the movable plate 10 is driven to press and limit the positioning block 7 upward, thereby realizing the limiting of the positioning block 7 and facilitating the rapid adjustment of the measuring angle of the rangefinder.

[0034] Finally, it should be noted that in the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A laser rangefinder protective device, comprising a fixed base (1), characterized in that: The top of the fixed base (1) is fixedly connected to a support chassis (2), the upper surface of the support chassis (2) is fixedly connected to two mutually symmetrical mounting plates (3), a movable rod (4) is rotatably connected between the two mounting plates (3) via a bearing, a support column (5) is fixedly connected to the surface of the movable rod (4), the top of the support column (5) is fixedly connected to a limit fixing plate (6), a limit component is arranged on the surface of the limit fixing plate (6), and the limit fixing plate (6) is used to limit and fix the rangefinder; A semicircular positioning block (7) is fixedly connected to the bottom end of the support column (5); a strip shell (8) is fixedly connected to the upper surface of the support chassis (2); a guide rod (9) is fixedly connected to the inner wall of the strip shell (8); a movable plate (10) is slidably connected to the surface of the guide rod (9); a limit block (11) is fixedly connected to the upper surface of the movable plate (10); a top of the limit block (11) extends to the outside of the strip shell (8); and the position of the limit block (11) corresponds to the positioning block (7); a rubber anti-slip sheet (12) is fixedly connected to the surface of the positioning block (7); and a top of the limit block (11) overlaps the surface of the rubber anti-slip sheet (12).

2. A laser rangefinder protection device according to claim 1, characterized in that: A compression spring (13) is sleeved on the surface of the guide rod (9), the top end of the compression spring (13) is fixedly connected to the lower surface of the movable plate (10), the upper surface of the strip shell (8) is provided with a through hole matching the limit block (11), and the limit block (11) is slidably connected to the inner wall of the through hole.

3. A laser rangefinder protection device according to claim 2, characterized in that: One end of the movable plate (10) extends to the outside of the strip shell (8), and a pressing block (14) is fixedly connected to the upper surface of the movable plate (10).

4. A laser rangefinder protection device according to claim 3, characterized in that: The limit assembly comprises a rectangular box (15) fixedly connected to the rear end of the limit fixing plate (6), guide holes are provided at both left and right ends of the rectangular box (15), a limit rod (16) is slidably connected to the inner wall of the guide hole, one end of the limit rod (16) is fixedly connected to the limit plate (17), a clamping block (18) is fixedly connected to the surface of the limit plate (17), and the clamping block (18) is used to clamp and limit the two sides of the rear end of the rangefinder.

5. A laser rangefinder protection device according to claim 4, characterized in that: One end of the limiting rod (16) away from the limiting plate (17) is fixedly connected to a baffle, and a return spring (19) is sleeved on the surface of the limiting rod (16), one end of the return spring (19) is fixedly connected to the surface of the baffle, and the other end of the return spring (19) is fixedly connected to the inner wall of the rectangular box (15).

6. A laser rangefinder protection device according to claim 5, characterized in that: The lower surface of the limit fixing plate (6) is fixedly connected to two guide shells (20), the inner wall of the guide shell (20) is slidably connected to a pull rod (21), the ends of the two pull rods (21) are fixedly connected to a clamping plate (22), and the surfaces of the two clamping plates (22) are fixedly connected to a plurality of anti-slip rubber blocks (23).

7. A laser rangefinder protection device according to claim 6, characterized in that: An adjusting screw rod (24) is rotatably provided on the lower surface of the position-limiting fixing plate (6), an adjusting plate (25) is threadedly connected to the surface of the adjusting screw rod (24), and two ends of the adjusting plate (25) are respectively fixedly connected to the surfaces of the two pull rods (21).

8. A laser rangefinder protection device according to claim 7, characterized in that: An adjusting knob (26) is fixedly connected to the end of the adjusting screw rod (24), and a plurality of heat dissipation holes are provided on the surface of the position-limiting fixing plate (6).

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