Portable instrument for laser distance measurement and area measurement
By designing protective components and fixing components in the laser rangefinder, blocking the light emission holes and objective lenses, the problem of dust deposition affecting measurement accuracy when the laser rangefinder is not in use is solved, and the stability and accuracy of the instrument are achieved.
Patent Information
- Application Number
- CN202420036923.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-08
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-08
AI Technical Summary
When existing laser rangefinders are not in use, the laser emission holes and signal receiving holes are exposed, which are prone to dust and affect measurement accuracy.
A portable laser ranging and area measuring instrument including a protective component and a fixing component is designed to block the light emission hole and objective lens by moving and fixing the first and second baffles to prevent dust deposition.
Effectively prevent dust from affecting measurement accuracy, ensure the protective effect of the instrument when not in use, and ensure the reliability of the measurement results.
Smart Images
Figure CN222212932U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laser distance measurement, in particular to a portable instrument for laser distance measurement and area measurement. Background Art
[0002] A laser rangefinder is an instrument that uses a certain parameter of a modulated laser to accurately measure the distance to a target. When working, a pulsed laser rangefinder emits a beam or a series of short pulsed laser beams to the target. 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 rangefinder to the target, thereby measuring the distance and area of the target.
[0003] For example, announcement number CN218956807U proposes a portable handheld laser rangefinder, including a displacement circle, an outer wall of the displacement circle is sleeved with a movable block, a movable block is provided on the movable block, and a movable slider is connected to the inside of the movable track, a handheld laser rangefinder body is provided on the upper end of the movable slider, and a level bubble is provided on the handheld laser rangefinder body, and a connecting rod is provided on the inner side of the displacement circle. However, during use of the utility model, when the laser rangefinder is not in use, the laser emission hole and signal receiving hole of the laser rangefinder are exposed to the outside. During long-term storage, the objective lens of the laser rangefinder will be contaminated with dust, affecting the accuracy of the rangefinder measurement. Therefore, a portable instrument for laser distance measurement and area measurement is proposed to solve the above-mentioned problems. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a portable instrument for laser distance measurement and area measurement, which has the advantages of protection, etc., and solves the problem that when the laser rangefinder is not in use, the laser emission hole and signal receiving hole of the laser rangefinder are exposed to the outside, and during the long-term storage process, the objective lens of the laser rangefinder will be contaminated with dust, thereby affecting the accuracy of the rangefinder measurement.
[0005] To achieve the above object, the utility model provides the following technical solutions: a portable instrument for laser distance measurement and area measurement, comprising a laser distance meter, a light emission hole is provided on the top of the laser distance meter, a protective component is provided on the laser distance meter, and a fixing component is provided on the laser distance meter;
[0006] The protection component includes a first baffle plate slidably connected to the inside of the light emitting hole, a fixed seat is fixedly connected to the left side of the first baffle plate, a limiting plate is fixedly connected to the right inner wall of the fixed seat, a rotating shaft is rotatably connected to the inside of the fixed seat, a second baffle plate is fixedly connected to the outside of the rotating shaft, two torsion springs are sleeved on the outside of the rotating shaft, a pulling plate is fixedly connected to the top of the first baffle plate, a fixed plate is fixedly connected to the left side of the laser rangefinder, a limiting rod is slidably connected to the inside of the fixed plate, and a first spring is sleeved on the outside of the limiting rod.
[0007] Furthermore, the fixed assembly includes a sliding rod fixedly connected to the right side of the laser rangefinder, a connecting plate slidably connected to the outer side of the sliding rod, a clamping rod fixedly connected to the top of the connecting plate, a movable plate fixedly connected to the right side of the first baffle, a second spring sleeved on the outer side of the sliding rod, a winding wheel fixedly installed on the right side of the laser rangefinder, and a pull rope wound around the outer side of the winding wheel.
[0008] Furthermore, a movable hole adapted to the width of the first baffle is fixedly connected to the left side of the laser rangefinder, and a connecting hole adapted to the width of the movable plate is opened on the right side of the laser rangefinder.
[0009] Furthermore, the left side of the limiting rod is an inclined surface, and the two ends of the first spring are fixedly connected to the outer side of the limiting rod and the bottom of the fixing plate respectively.
[0010] Furthermore, one end of the two torsion springs is fixedly connected to the front inner wall and the back inner wall of the fixing seat respectively, and the other end of the two torsion springs is fixedly connected to the front and the back of the second baffle respectively.
[0011] Furthermore, one end of the pull rope is fixedly connected to the bottom of the movable plate, and the other end of the pull rope is fixedly connected to the outer side of the winding wheel.
[0012] Furthermore, a limiting through hole matched with the size of the clamping rod is opened inside the movable plate, and the second baffle plate abuts against the limiting plate.
[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0014] 1. The portable instrument for laser distance measurement and area measurement is provided with a protective component. When the distance and area of an object are measured by the laser rangefinder, the first baffle plate is pulled to move so that the first baffle plate and the second baffle plate no longer block the light emitting hole, and the second baffle plate is flipped to be fixed on the left side of the laser rangefinder, so that the laser rangefinder is convenient for measurement. When not in use, the objective lens at the light emitting hole is blocked by the first baffle plate and the second baffle plate, so as to reduce the situation that the use of the laser rangefinder is affected by dust contamination.
[0015] 2. The portable instrument for laser distance measurement and area measurement is provided with a fixing component. When the first baffle plate and the second baffle plate shield and protect the objective lens at the light emitting hole, the movable plate on the right side of the first baffle plate can be restricted and fixed, so that the first baffle plate and the second baffle plate remain stable, thereby ensuring the protective effect of the laser rangefinder. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 For this utility model Figure 1 A magnified view of the structure at center;
[0018] Figure 3 This is a top view of the structure of the laser rangefinder of the utility model
[0019] Figure 4 This is a top view of the fixing seat structure of the utility model;
[0020] Figure 5 It is a schematic diagram of the connection structure between the fixing seat and the second baffle of the utility model.
[0021] In the figure: 1 laser rangefinder, 2 first baffle, 3 fixed seat, 4 second baffle, 5 pull plate, 6 rotating shaft, 7 winding wheel, 8 fixed plate, 9 limiting rod, 10 first spring, 11 movable plate, 12 clamping rod, 13 laser emitting hole, 14 sliding rod, 15 connecting plate, 16 second spring, 17 pull rope, 18 torsion spring, 19 limiting plate. DETAILED DESCRIPTION
[0022] 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.
[0023] See also Figure 1-5 A portable laser distance measurement and area measurement instrument in this embodiment includes a laser distance meter 1. A hanging ring is fixedly connected to the right side of the laser distance meter 1, and a handle is fixedly connected to the back of the laser distance meter 1 to facilitate taking and carrying the laser distance meter 1. A light emitting hole 13 is opened on the top of the laser distance meter 1, a protective component is arranged on the laser distance meter 1, and a fixing component is arranged on the laser distance meter 1.
[0024] The protective component includes a first baffle plate 2 which is slidably connected to the inside of the light emitting hole 13; a movable hole which is adapted to the width of the first baffle plate 2 is fixedly connected to the left side of the laser rangefinder 1; a fixing seat 3 is fixedly connected to the left side of the first baffle plate 2; a limiting plate 19 is fixedly connected to the right inner wall of the fixing seat 3; a rotating shaft 6 is rotatably connected to the inside of the fixing seat 3; a second baffle plate 4 is fixedly connected to the outer side of the rotating shaft 6; the second baffle plate 4 abuts against the limiting plate 19; two torsion springs 18 are sleeved on the outer side of the rotating shaft 6; one ends of the two torsion springs 18 are respectively fixedly connected to the front inner wall and the back inner wall of the fixing seat 3; and the other ends of the two torsion springs 18 are respectively fixedly connected to the front and back sides of the second baffle plate 4.
[0025] See also Figure 4-5 When the limiting rod 9 no longer limits the second baffle 4, the tension of the torsion spring 18 drives the second baffle 4 to reset, so that the second baffle 4 is rotated to a horizontal position, and the second baffle 4 is blocked by the limiting plate 19, so as to limit the rotation angle of the second baffle 4. The top of the first baffle 2 is fixedly connected with a pull plate 5, the left side of the laser rangefinder 1 is fixedly connected with a fixed plate 8, the inner sliding connection of the fixed plate 8 is connected with a limiting rod 9, the outer side of the limiting rod 9 is sleeved with a first spring 10, the left side of the limiting rod 9 is an inclined surface, and the two ends of the first spring 10 are respectively fixedly connected with the outer side of the limiting rod 9 and the bottom of the fixed plate 8.
[0026] It should be noted that, by providing a protective component, when the distance and area of an object are measured by the laser rangefinder 1, the first baffle plate 2 can be pulled to move so that the first baffle plate 2 and the second baffle plate 4 no longer block the light emitting hole 13, and the second baffle plate 4 is flipped over to be fixed on the left side of the laser rangefinder 1, which does not affect the use of the laser rangefinder 1 when measuring distance. When not in use, the objective lens at the light emitting hole 13 is blocked by the first baffle plate 2 and the second baffle plate 4, thereby reducing the situation where the use of the laser rangefinder 1 is affected by dust contamination.
[0027] See also Figure 1-3 The fixed component includes a sliding rod 14 fixedly connected to the right side of the laser rangefinder 1, a connecting plate 15 is slidably connected to the outer side of the sliding rod 14, a clamping rod 12 is fixedly connected to the top of the connecting plate 15, a movable plate 11 is fixedly connected to the right side of the first baffle 2, a limiting through hole adapted to the size of the clamping rod 12 is opened inside the movable plate 11, a connecting hole adapted to the width of the movable plate 11 is opened on the right side of the laser rangefinder 1, a second spring 16 is sleeved on the outer side of the sliding rod 14, a winding wheel 7 is fixedly installed on the right side of the laser rangefinder 1, a pull rope 17 is wound around the outer side of the winding wheel 7, one end of the pull rope 17 is fixedly connected to the bottom of the movable plate 11, and the other end of the pull rope 17 is fixedly connected to the outer side of the winding wheel 7.
[0028] It should be noted that, by setting up a fixing component, when the first baffle plate 2 and the second baffle plate 4 block and protect the objective lens at the light emitting hole 13, the movable plate 11 on the right side of the first baffle plate 2 can be restricted and fixed, so that the first baffle plate 2 and the second baffle plate 4 remain stable, thereby ensuring the protection effect of the laser rangefinder 1.
[0029] The working principle of the above embodiment is:
[0030] When the laser distance and area measuring portable instrument is used to measure the distance and area of an object through the laser distance meter 1, the pull plate 5 is pulled to drive the first baffle plate 2 to slide in the slide groove through the slider, so that the first baffle plate 2 and the second baffle plate 4 no longer block the light emitting hole 13. When the pull plate 5 moves to contact the left side of the light emitting hole 13, the second baffle plate 4 is turned over by rotating it, so that the second baffle plate 4 presses the inclined surface of the limiting rod 9, pushes the limiting rod 9 to move so that the first spring 10 is stretched. When the second baffle plate 4 is rotated to the right side of the limiting rod 9, the tension of the first spring 10 drives the limiting rod 9 to reset, and the second baffle plate 4 is restricted, which does not hinder the normal use of the laser distance meter 1. When not in use, , driving the first baffle plate 2 and the second baffle plate 4 to shield the objective lens at the light emitting hole 13, reducing the situation where dust contamination affects the use of the laser rangefinder 1, and reeling the pull rope 17 by rotating the winding wheel 7, so that one end of the pull rope 17 pulls the connecting plate 15 to slide on the outside of the sliding rod 14, and squeezes the second spring 16. When the first baffle plate 2 moves to contact the right side of the light emitting hole 13, the winding wheel 7 is released to drive the clamping rod 12 to reset through the tension of the second spring 16. The clamping rod 12 is connected to the limiting through hole provided on the movable plate 11, and the movable plate 11 is limited, so that the first baffle plate 2 and the second baffle plate 4 remain stable, thereby ensuring the protection effect of the laser rangefinder 1 and facilitating the use of the user.
[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A portable laser distance and area measurement instrument, comprising a laser distance meter (1), characterized in that: A light emitting hole (13) is provided on the top of the laser rangefinder (1), a protective component is provided on the laser rangefinder (1), and a fixing component is provided on the laser rangefinder (1); The protective component comprises a first baffle (2) slidably connected to the inside of the light emitting hole (13); a fixing seat (3) is fixedly connected to the left side of the first baffle (2); a limiting plate (19) is fixedly connected to the right inner wall of the fixing seat (3); a rotating shaft (6) is rotatably connected to the inside of the fixing seat (3); a second baffle (4) is fixedly connected to the outside of the rotating shaft (6); two torsion springs (18) are sleeved on the outside of the rotating shaft (6); a pulling plate (5) is fixedly connected to the top of the first baffle (2); a fixing plate (8) is fixedly connected to the left side of the laser rangefinder (1); a limiting rod (9) is slidably connected to the inside of the fixing plate (8); and a first spring (10) is sleeved on the outside of the limiting rod (9).
2. A portable laser distance and area measurement instrument according to claim 1, characterized in that: The fixing assembly comprises a sliding rod (14) fixedly connected to the right side of the laser rangefinder (1), a connecting plate (15) slidably connected to the outer side of the sliding rod (14), a clamping rod (12) fixedly connected to the top of the connecting plate (15), a movable plate (11) fixedly connected to the right side of the first baffle (2), a second spring (16) sleeved on the outer side of the sliding rod (14), a winding wheel (7) fixedly mounted on the right side of the laser rangefinder (1), and a pull rope (17) wound around the outer side of the winding wheel (7).
3. A portable laser distance and area measurement instrument according to claim 2, characterized in that: A movable hole matching the width of the first baffle plate (2) is fixedly connected to the left side of the laser rangefinder (1), and a connection hole matching the width of the movable plate (11) is opened on the right side of the laser rangefinder (1).
4. A portable laser distance and area measurement instrument according to claim 1, characterized in that: The left side of the limiting rod (9) is an inclined surface, and the two ends of the first spring (10) are respectively fixedly connected to the outer side of the limiting rod (9) and the bottom of the fixing plate (8).
5. A portable laser distance and area measurement instrument according to claim 1, characterized in that: One end of the two torsion springs (18) is respectively fixedly connected to the front inner wall and the back inner wall of the fixing seat (3), and the other end of the two torsion springs (18) is respectively fixedly connected to the front and back sides of the second baffle (4).
6. A portable laser distance and area measurement instrument according to claim 2, characterized in that: One end of the pull rope (17) is fixedly connected to the bottom of the movable plate (11), and the other end of the pull rope (17) is fixedly connected to the outer side of the winding wheel (7).
7. A portable laser distance and area measurement instrument according to claim 2, characterized in that: A limiting through hole having a size matching that of the clamping rod (12) is provided inside the movable plate (11), and the second baffle plate (4) abuts against the limiting plate (19).