A laser scanning rangefinder

Abstract

The application relates to the technical field of distance measuring devices, in particular to a laser scanning range finder which comprises a range finder body, a laser emitting end, a laser receiving end and a protection mechanism on the range finder body, two connecting mechanisms and two handheld mechanisms, the two connecting mechanisms are fixedly connected together with the protection mechanism, the two handheld mechanisms are respectively arranged on the two sides of the range finder body and are fixedly connected together with the range finder body, the protection mechanism comprises a rectangular box and a cleaning mechanism arranged in the rectangular box, and the handheld mechanism comprises a cloth strip; in the storage process, the laser emitting end and the laser receiving end are protected by the protection mechanism and cannot be damaged; the laser emitting end and the laser receiving end can be cleaned by driving the cleaning mechanism, the measurement accuracy of the next time is ensured, and when the range finder body is used for measurement, the fingers are passed through the two cloth strips, so that the range finder body cannot slide off the hand and is damaged during the measurement work.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of distance measuring equipment, and particularly relates to a laser scanning range finder. BACKGROUND

[0002] The laser scanning range finder is an instrument for distance measurement by using the principles of electromagnetic wave, optics and acoustics, and has a small body. The principle is that a handheld range finder emits a very thin laser beam to a target, and a photoelectric element receives the laser beam reflected by the target. A timer measures the time from the emission to the reception of the laser beam, and calculates the distance from the observer to the target.

[0003] The existing laser scanning range finder has the following disadvantages:

[0004] 1. The laser emission end and the laser receiving end of the laser scanning range finder are often exposed in the use process, and are easily covered with dust, which affects the measurement result. The laser emission end and the laser receiving end exposed outside are easily damaged in the storage and transfer process.

[0005] 2. The handheld range finder in the laser scanning range finder is easily unstable in the use process and falls to the ground, which causes damage to the handheld range finder.

[0006] Therefore, the present application provides a laser scanning range finder to solve the above problems. SUMMARY

[0007] The present application aims at solving the problems in the prior art and provides a laser scanning range finder.

[0008] In order to achieve the above purpose, the present application adopts the following technical scheme: a laser scanning range finder, comprising a range finder body, a laser emission end, a laser receiving end and a protection mechanism on the range finder body, two connecting mechanisms and two handheld mechanisms, the two connecting mechanisms are fixedly connected together with the protection mechanism, the two handheld mechanisms are respectively located on the two sides of the range finder body and are fixedly connected together with the range finder body, the protection mechanism comprises a rectangular box and a cleaning mechanism arranged in the rectangular box, the handheld mechanism comprises a cloth strip, when the protection mechanism is fixedly connected together with the range finder body through the two connecting mechanisms and the two handheld mechanisms, the protection mechanism can protect the range finder body, and the cleaning mechanism can clean the laser emission end and the laser receiving end. At this time, the two cloth strips are in a straightened state and are attached to the range finder body. When the range finder body and the protection mechanism are separated, the two cloth strips will be curved, and the range finder body is held by fingers through the two cloth strips.

[0009] Preferably, the protection mechanism is provided with a driving mechanism, the driving mechanism comprises a push rod sliding through the rectangular box, a cross is fixedly installed on one end of the push rod close to the cleaning mechanism, and a same hinged rod is hinged between the cross and the cleaning mechanism.

[0010] Preferably, the hand-held mechanism comprises a rectangular frame, the both sides of the range finder body are provided with rectangular grooves, and the two rectangular frames are fixedly connected together correspondingly to the rectangular grooves; a fixed block is fixedly installed on the side inner wall of the rectangular frame; a sliding block is slidingly installed in the rectangular frame; and the both ends of the cloth strip are fixedly connected with the fixed block and the sliding block.

[0011] Preferably, the cleaning mechanism comprises two fixed seats fixedly connected with the bottom inner wall of the rectangular box, a rotating shaft is rotatably installed through the two fixed seats, the bottom ends of the two rotating shafts extend out of the rectangular box and are fixedly installed with cleaning cotton, a first annular block is fixedly sleeved on the rotating shaft, the top of the first annular block is fixedly connected with the rectangular box, a dust discharging pipe is fixedly installed through the first annular block, a same paddle is arranged between the first annular block and the cleaning cotton, the paddle is fixedly sleeved on the rotating shaft, a belt pulley is fixedly sleeved on each of the two rotating shafts, a same timing belt is sleeved on the two belt pulleys, a disc is fixedly installed on the top end of the rotating shaft close to the driving mechanism, the non-center of the disc is hingedly connected with the hinged rod, in order to clean the laser emitting end and the laser receiving end, the disc receives power provided by the driving mechanism and transmits the power to one of the rotating shafts, and the power is transmitted to the other rotating shaft through the connection of the two belt pulleys and the timing belt, so that the two rotating shafts can rotate at the same time, the two rotating shafts drive the corresponding cleaning cotton 20205 to clean the laser emitting end and the laser receiving end respectively, and at the same time, the paddle can discharge the dust and other foreign matters cleaned out through the dust discharging pipe.

[0012] Preferably, a second annular block is slidingly sleeved on the push rod, the second annular block is fixedly connected with the inner wall of the rectangular box, a same first spring is fixedly installed between the second annular block and the cross, and the first spring is slidingly sleeved on the push rod.

[0013] Preferably, the rectangular frame is fixedly installed with two limiting rods and two third springs on the inner wall of the side away from the fixed block, the two third springs are respectively slidably sleeved on the two limiting rods, the two limiting rods are fixedly connected together at the end close to the limiting rod, the two limiting rods penetrate through the sliding block and are slidably connected together, the two third springs are fixedly connected together at the end close to the fixed block, a rectangular hole is formed in the side close to the fixed block of the sliding block, the rectangular hole is located between the two limiting rods, the same lock rod is fixedly installed on the two inner walls of the sides of the rectangular frame, the connecting mechanism comprises a rectangular block fixedly connected with the rectangular box, a circular hole is formed in the rectangular block, a circular block is fixedly installed in the circular hole, a square rod is slidably installed through the circular block, the square rod extends out of the circular hole at both ends and is fixedly installed with a clamping tongue and a pressing plate at the two ends respectively, the same second spring is fixedly installed on the clamping tongue and the pressing plate, and the second spring is slidably sleeved on the square rod.

[0014] Preferably, the first annular block is fixedly installed with a bellows at the bottom, and the paddle and the cleaning cotton are located in the bellows.

[0015] Compared with the prior art, the laser range finder comprises a range finder body, a laser emitting end, a laser receiving end and a protection mechanism on the range finder body, two connecting mechanisms and two handheld mechanisms, the two connecting mechanisms are fixedly connected together with the protection mechanism, the two handheld mechanisms are located on the two sides of the range finder body and are fixedly connected together with the range finder body, the protection mechanism comprises a rectangular box and a cleaning mechanism arranged in the rectangular box, the handheld mechanism comprises a cloth strip, and the protection mechanism is fixedly connected together with the range finder body through the two connecting mechanisms and the two handheld mechanisms, so that the protection mechanism can protect the range finder body, and the cleaning mechanism can clean the laser emitting end and the laser receiving end, at this time, the two cloth strips are in a straightened and adhered state with the range finder body, when the range finder body and the protection mechanism are separated, the two cloth strips will be arc-shaped curved, and the range finder body is held by fingers through the two cloth strips.

[0016] 1. The two connecting mechanisms are respectively clamped on the two handheld mechanisms, so that the protection mechanism and the range finder body can be fixedly connected together, so that the protection mechanism can protect the laser emitting end and the laser receiving end on the range finder body, so that the laser emitting end and the laser receiving end will not be damaged during storage of the range finder body; at the same time, when the protection mechanism and the range finder body are connected together, the laser emitting end and the laser receiving end can be cleaned by driving the cleaning mechanism, so as to ensure the measurement accuracy next time;

[0017] 2. When the distance measuring instrument body and the protection mechanism are completely separated, the cloth strip originally straightened by the connecting mechanism will be bent, and the fingers can be inserted through the two cloth strips to prevent the distance measuring instrument body from falling off the hand and being damaged during measurement. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0019] Figure 2 is a schematic diagram of the structure of the protection mechanism in the present application;

[0020] Figure 3 is a schematic diagram of the structure of the driving mechanism and the cleaning mechanism in the present application;

[0021] Figure 4 is an enlarged schematic diagram of the driving mechanism in the present application;

[0022] Figure 5 is a schematic diagram of the structure of the distance measuring instrument body in the present application;

[0023] Figure 6 is an exploded view of the handheld mechanism in the present application;

[0024] Figure 7 is a cross-sectional schematic diagram of the connecting mechanism in the present application;

[0025] Figure 8 is a cross-sectional schematic diagram of the bellows in the present application.

[0026] In the figure: 1, distance measuring instrument body; 101, laser emitting end; 102, laser receiving end; 103, rectangular groove; 2, protection mechanism; 201, rectangular box; 202, cleaning mechanism; 20201, fixed seat; 20202, rotating shaft; 20203, disc; 20204, belt pulley; 20205, cleaning cotton; 20206, paddle; 20207, first annular block; 20208, dust removal pipe; 20209, timing belt; 20210, bellows; 203, driving mechanism; 20301, push rod; 20302, second annular block; 20303, cross; 20304, first spring; 20305, hinged rod; 3, connecting mechanism; 301, rectangular block; 302, circular hole; 303, circular block; 304, square rod; 305, clamping tongue; 306, pressing plate; 307, second spring; 4, handheld mechanism; 401, rectangular frame; 402, locking rod; 403, sliding block; 404, fixed block; 405, limiting rod; 406, third spring; 407, rectangular hole; 408, cloth strip. DETAILED DESCRIPTION

[0027] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0028] Reference Figures 1-8 In the embodiment, a laser scanning range finder is provided, which comprises a range finder body 1, a laser emitting end 101, a laser receiving end 102 and a protection mechanism 2 on the range finder body 1, two connecting mechanisms 3 and two handheld mechanisms 4. The two connecting mechanisms 3 are fixedly connected together with the protection mechanism 2. The two handheld mechanisms 4 are respectively located on two sides of the range finder body 1 and are fixedly connected together with the range finder body 1. The protection mechanism 2 comprises a rectangular box 201 and a cleaning mechanism 202 arranged in the rectangular box 201. The handheld mechanism 4 comprises a cloth strip 408. When the protection mechanism 2 is fixedly connected together with the range finder body 1 through the two connecting mechanisms 3 and the two handheld mechanisms 4, the protection mechanism 2 can protect the range finder body 1, and the cleaning mechanism 202 can clean the laser emitting end 101 and the laser receiving end 102. At this time, the two cloth strips 408 are in a state of being straightened and adhered to the range finder body 1. When the range finder body 1 and the protection mechanism 2 are separated, the two cloth strips 408 will be curved in an arc shape. The range finder body 1 is held by fingers passing through the two cloth strips 408.

[0029] The laser scanning range finder provided in the embodiment can fix the protection mechanism 2 and the range finder body 1 together through the two connecting mechanisms 3 respectively clamped on the two handheld mechanisms 4. Therefore, the laser emitting end 101 and the laser receiving end 102 on the range finder body 1 can be protected by the protection mechanism 2, so that the laser emitting end 101 and the laser receiving end 102 will not be damaged during storage of the range finder body 1. Meanwhile, when the protection mechanism 2 and the range finder body 1 are connected together, the laser emitting end 101 and the laser receiving end 102 can be cleaned by driving the cleaning mechanism 202, so as to ensure the measurement accuracy next time. When the two connecting mechanisms 3 and the two handheld mechanisms 4 are disconnected, the range finder body 1 and the protection mechanism 2 will be completely separated, so that the laser emitting end 101 and the laser receiving end 102 will be exposed, facilitating measurement work. Meanwhile, the cloth strips 408 originally straightened due to the connecting mechanisms 3 will be curved. When the range finder body 1 is held for measurement, fingers passing through the two cloth strips 408 can avoid the range finder body 1 from sliding off the hand and being damaged during measurement.

[0030] Further, the protection mechanism 2 is internally provided with a driving mechanism 203, the driving mechanism 203 comprises a push rod 20301 sliding through the rectangular box 201, a cross 20303 is fixedly installed on one end of the push rod 20301 close to the cleaning mechanism 202, and a same hinged rod 20305 is hinged between the cross 20303 and the cleaning mechanism 202. In order to control the working of the cleaning mechanism 202 after the protection mechanism 2 is closed, the push rod 20301 through the rectangular block 301 can manually drive the driving mechanism 203 to work, thereby supplying energy to the cleaning mechanism 202, so that the cleaning mechanism 202 can work without other power output.

[0031] Further, the handheld mechanism 4 comprises a rectangular frame 401, both sides of the range finder body 1 are provided with a rectangular groove 103, two rectangular frames 401 are fixedly connected together correspondingly to the rectangular grooves 103, a fixed block 404 is fixedly installed on one side inner wall of the rectangular frame 401, a sliding block 403 is slidingly installed in the rectangular frame 401, and both ends of the cloth strip 408 are fixedly connected together with the fixed block 404 and the sliding block 403. The slidingly connected sliding block 403 can make the cloth strip 408 appear in two states of being straightened and being completely straightened, so that the cloth strip 408 appears in different states according to different use conditions.

[0032] Further, the cleaning mechanism 202 comprises two fixed seats 20201 fixedly connected together in the bottom inner wall of the rectangular box 201, two rotating shafts 20202 are rotatably installed on the two fixed seats 20201, the bottom ends of the two rotating shafts 20202 extend to the outside of the rectangular box 201 and are fixedly installed with cleaning cotton 20205, a first annular block 20207 is fixedly sleeved on the rotating shaft 20202, the top of the first annular block 20207 is fixedly connected with the rectangular box 201, a dust discharge pipe 20208 is fixedly installed on the first annular block 20207, a paddle 20206 is arranged between the first annular block 20207 and the cleaning cotton 20205, the paddle 20206 is fixedly sleeved on the rotating shaft 20202, a belt pulley 20204 is fixedly sleeved on the two rotating shafts 20202, the same timing belt 20209 is sleeved on the two belt pulleys 20204, the top end of the rotating shaft 20202 close to the driving mechanism 203 is fixedly installed with a disc 20203, the non-center of the disc 20203 is hingedly connected with the hinge rod 20305, in order to clean the laser emitting end 101 and the laser receiving end 102, the disc 20203 receives the power provided by the driving mechanism 203 and transmits it to one of the rotating shafts 20202, and through the communication of the two belt pulleys 20204 and the timing belt 20209, the two rotating shafts 20202 can rotate at the same time, the two rotating shafts 20202 drive the corresponding cleaning cotton 20205 to clean the laser emitting end 101 and the laser receiving end 102 respectively, at the same time, the paddle 20206 can discharge the dust and other foreign matters cleaned out through the dust discharge pipe 20208.

[0033] Further, the second annular block 20302 is slidably sleeved on the push rod 20301, the second annular block 20302 is fixedly connected with the inner wall of the rectangular box 201, the same first spring 20304 is fixedly installed between the second annular block 20302 and the cross 20303, the first spring 20304 is slidably sleeved on the push rod 20301, by arranging the second annular block 20302 and the first spring 20304, the push rod 20301 can quickly reset after pushing the cross 20303, so as to ensure that the power generated by the driving mechanism 203 can be continuously output.

[0034] Further, the rectangular frame 401 is fixedly installed with two limiting rods 405 and two third springs 406 on the inner wall of the side away from the fixed block 404, the two third springs 406 are respectively slidably sleeved on the two limiting rods 405, the two limiting rods 405 are fixedly connected together at the end close to the limiting rod 405, the two limiting rods 405 penetrate through the sliding block 403 and are slidably connected together with the sliding block 403, the two third springs 406 are fixedly connected together with the sliding block 403 at the end close to the fixed block 404, the sliding block 403 is provided with a rectangular hole 407 on the side close to the fixed block 404, the rectangular hole 407 is located between the two limiting rods 405, the same lock rod 402 is fixedly installed on the inner wall of the two sides of the rectangular frame 401, the connecting mechanism 3 comprises a rectangular block 301 fixedly connected with the rectangular box 201, the rectangular block 301 is provided with a circular hole 302, a circular block 303 is fixedly installed in the circular hole 302, a square rod 304 penetrates through and is slidably installed on the circular block 303, the square rod 304 extends out of the circular hole 302 at the two ends and is respectively fixedly installed with a clamping tongue 305 and a pressing plate 306, the same second spring 307 is fixedly installed on the clamping tongue 305 and the pressing plate 306, the second spring 307 is slidably sleeved on the square rod 304, the two third springs 406 can reset the sliding block 403 in time when the connecting mechanism 3 and the handheld mechanism 4 are separated, and the lock rod 402 and the clamping tongue 305 are important components for connecting the connecting mechanism 3 and the handheld mechanism 4 together.

[0035] Further, the first annular block 20207 is fixedly installed with a bellows 20210, the paddle 20206 and the cleaning cotton 20205 are located in the bellows 20210, the bellows 20210 can protect the rotating shaft 20202 and the paddle 20206, and can completely collect dust generated during cleaning of the cleaning cotton 20205, so that the paddle 20206 can completely transfer the dust cleaned out by the cleaning cotton 20205.

[0036] The working principle and use process of the present application: when the range finder body 1 is used for measurement work, press the two pressing plates 306, the pressing plate 306 pushes the card tongue 305 on the square rod 304 to loosen the hooked lock rod 402, then pushes the rectangular block 301, so that the square rod 304 can push the sliding block 403 and compress two third springs 406, so that the card tongue 305 and the lock rod 402 are completely staggered, then release the two pressing plates 306, under the reset of the second spring 307, the square rod 304 will drive the card tongue 305 to completely enter the rectangular hole 407, there is no connection between the card tongue 305 and the lock rod 402, so that the connecting mechanism 3 and the handheld mechanism 4 can be completely separated, so that the protection mechanism 2 and the range finder body 1 can also be completely separated, so as to facilitate the handheld range finder body 1 to carry out measurement work, at the same time, the two third springs 406 compressed are reset, the sliding block 403 is moved to the fixed block 404, so that the cloth strip 408 originally straightened by the fixed block 404 and the sliding block 403 will appear completely, so when the staff holds the range finder body 1 to carry out measurement work, by putting the fingers through the two cloth strips 408, avoid the range finder body 1 from falling off the hand and causing damage;

[0037] When it is necessary to connect the protection mechanism 2 and the range finder body 1 together to protect the range finder body 1, insert the two card tongues 305 into the corresponding rectangular holes 407 respectively, then push the sliding block 403 through the connecting mechanism 3 to compress the two third springs 406, so that the card tongue 305 on the square rod 304 can pass through the lock rod 402, then drive the square rod 304 to hook the lock rod 402 by pressing the pressing plate 306, so as not to exert a pushing force on the connecting mechanism 3, the two third springs 406 compressed will push the sliding block 403, so that the sliding block 403 can completely hook the card tongue 305 on the square rod 304 to the lock rod 402, then the pressing plate 306 can be released, through the cooperation of the card tongue 305 and the lock rod 402, the connecting mechanism 3 and the handheld mechanism 4 are firmly connected together, through the two connecting mechanisms 3 and the two handheld mechanisms 4, the range finder body 1 and the protection mechanism 2 are also connected together;

[0038] After the protection mechanism 2 and the range finder body 1 are connected together, two bellows 20210 will respectively block the laser emitting end 101 and the laser receiving end 102, so that there is no dust accumulation on the laser emitting end 101 and the laser receiving end 102 during storage. When it is necessary to clean the laser emitting end 101 and the laser receiving end 102, the push rod 20301 can be continuously pressed and released, the cross 20303 will continuously rotate the disc 20203 through the cooperation of the first spring 20304 and the hinged rod 20305, the two rotating shafts 20202 will simultaneously rotate through the cooperation of the two belt pulleys 20204 and the timing belt 20209, and the two cleaning cottons 20205 will respectively clean the laser emitting end 101 and the laser receiving end 102. The dust cleaned out will be accumulated in the two bellows 20210, and the paddle 20206 rotating with the rotating shaft 20202 can suck the dust into the dust exhaust pipe 20208 and exhaust it, so as to achieve the purpose of cleaning the laser emitting end 101 and the laser receiving end 102.

[0039] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A laser scanning range finder, comprising a range finder body, a laser emitting end, a laser receiving end and a protection mechanism on the range finder body, two connecting mechanisms and two handheld mechanisms, characterized in that, Both connecting mechanisms are fixedly connected to the protective mechanism. Two handheld mechanisms are located on both sides of the rangefinder body and fixedly connected to the rangefinder body. The protective mechanism includes a rectangular box and a cleaning mechanism set inside the rectangular box. The handheld mechanism includes cloth strips. When the protective mechanism is fixedly connected to the rangefinder body through the two connecting mechanisms and the two handheld mechanisms, the protective mechanism can protect the rangefinder body, and the cleaning mechanism can clean the laser emitting end and the laser receiving end. At this time, the two cloth strips are taut and in close contact with the rangefinder body. When the rangefinder body and the protective mechanism are separated, the two cloth strips will bend in an arc shape, and fingers can pass through the two cloth strips to hold the rangefinder body. The cleaning mechanism includes two fixed seats that are fixedly connected to the bottom inner wall of the rectangular box. A rotating shaft is rotatably mounted through each of the two fixed seats. The bottom ends of the two rotating shafts extend outside the rectangular box and are fixedly mounted with cleaning cotton. A first annular block is fixedly sleeved on the rotating shaft. The top of the first annular block is fixedly connected to the rectangular box. A dust exhaust pipe is fixedly mounted through the first annular block. A common blade is provided between the first annular block and the cleaning cotton. The blade is fixedly sleeved on the rotating shaft. A pulley is fixedly sleeved on each of the two rotating shafts. A timing belt is sleeved on the two pulleys. A disc is fixedly mounted at the top of the rotating shaft near the drive mechanism. The non-center part of the disc is hinged to a hinge rod. A corrugated pipe is fixedly installed at the bottom of the first annular block, and the blades and cleaning cotton are both located inside the corrugated pipe; The protective mechanism is equipped with a drive mechanism, which includes a push rod that slides through the rectangular box. A cross is fixedly installed at one end of the push rod near the cleaning mechanism. The cross and the cleaning mechanism are hinged together by the same hinge rod. A second annular block is slidably sleeved on the push rod. The second annular block is fixedly connected to the inner wall of the rectangular box. The same first spring is fixedly installed between the second annular block and the cross. The first spring is slidably sleeved on the push rod. The handheld mechanism includes a rectangular frame, and rectangular slots are provided on both sides of the rangefinder body. The two rectangular frames are fixedly connected together corresponding to the rectangular slots. A fixing block is fixedly installed on the inner wall of one side of the rectangular frame, and a slider is slidably installed inside the rectangular frame. The two ends of the cloth strip are fixedly connected to the fixing block and the slider, respectively.

2. A laser scanning rangefinder according to claim 1, characterized in that The rectangular frame is fixedly installed with two limiting rods and two third springs on the inner wall of the side away from the fixed block, the two third springs are respectively slidably sleeved on the two limiting rods, the two limiting rods are fixedly connected together at the end close to the limiting rod, the two limiting rods penetrate through the sliding block and are slidably connected together with the sliding block, the two third springs are fixedly connected together at the end close to the fixed block, the side close to the fixed block of the sliding block is provided with a rectangular hole, the rectangular hole is located between the two limiting rods, the same lock rod is fixedly installed on the two inner walls of the sides of the rectangular frame, the connecting mechanism comprises a rectangular block fixedly connected with the rectangular box, a circular hole is formed in the rectangular block, a circular block is fixedly installed in the circular hole, a square rod is slidably installed through the circular block, the square rod extends to the outside of the circular hole at both ends and is respectively fixedly installed with a clamping tongue and a pressing plate, the same second spring is fixedly installed on the clamping tongue and the pressing plate, and the second spring is slidably sleeved on the square rod.

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