CN212646988U

CN212646988U - Hand-held type laser range finder

Info

Publication number: CN212646988U
Application number: CN201822079308.6U
Authority: CN
Inventors: 章勤艳; 顾婉君
Original assignee: Hangzhou Neutral Real Estate Land Assessment Planning Consulting Co ltd
Current assignee: Hangzhou Neutral Real Estate Land Assessment Planning Consulting Co ltd
Priority date: 2018-12-11
Filing date: 2018-12-11
Publication date: 2021-03-02
Anticipated expiration: 2028-12-11

Abstract

The utility model belongs to the technical field of the range unit technique and specifically relates to a hand-held type laser range finder is related to, the utility model discloses a range finder main part, emission source, laser lens, transmitting lens and shell, shell including be can dismantle the set casing of connection and concatenation shell, set up in the first opening of set casing upper surface, set up in the second opening of set casing tip, expansion plate and switching piece, the expansion plate is formed by the equipment of a plurality of square tube, is equipped with flexible locating part between the adjacent square tube. The splicing shell and the fixed shell realize that the distance measuring instrument main body is clamped and fixed, so that the distance measuring instrument main body is not easy to fall off from the fixed shell, when the distance measuring instrument main body is not needed to be used, the pulling expansion plate seals the first opening, the opening and closing piece is moved to seal the second opening, the distance measuring instrument main body, the laser lens and the generating lens are not easy to contact with the external environment, and the device is effectively protected. The utility model discloses thereby can reduce the dust that is infected with on laser lens and the transmitting lens and improve the range finding precision.

Description

Hand-held type laser range finder

Technical Field

The utility model belongs to the technical field of the range unit technique and specifically relates to a hand-held type laser rangefinder is related to.

Background

The hand-held laser range finder is an instrument for accurately measuring the distance to a target by using laser, is multipurpose at a construction site, emits a thin laser beam to the target when in work, receives the laser beam reflected by the target by a photoelectric element, measures the time from the emission to the reception of the laser beam by a timer, and calculates the distance from an observer to the target.

The existing handheld laser range finder comprises a range finder main body, a transmitting source, a condensing lens and a transmitting lens, wherein the transmitting source transmits a laser beam to pass through the transmitting lens, the condensing lens receives the laser beam, and the distance from an observer to a target is calculated through the time of the laser beam returning.

The shell is often installed outward to current hand-held type laser range finder, but when the distancer main part need not the use, if operating personnel does not keep the distancer main part properly, then will be infected with a large amount of dusts on distancer main part, laser lens and the transmitting lens, the jam is piled up in the button hole in the distancer main part to the dust probably, and makes and is infected with the dust on laser lens and the transmitting lens for the distancer produces the error when the range finding easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of above-mentioned prior art, the utility model aims at providing a hand-held type laser range finder can reduce thereby the dust that is infected with on laser lens and the transmitting lens improves the range finding precision.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a hand-held type laser range finder, includes the distancer main part, is fixed in the emission source in the distancer main part, is fixed in laser lens and transmitting lens in the distancer main part and supplies the distancer main part to inlay the shell of establishing, the shell including be can dismantle the set casing and the concatenation shell that connect and be used for pressing from both sides tight distancer main part, set up in the set casing upper surface and supply the first opening that the distancer main part exposes, set up in the set casing tip and supply laser lens and transmitting lens to expose the second opening, locate on the concatenation shell inner wall and be used for the first open-close expansion plate of switching and slide and connect in the set casing and be used for switching second open-close piece, the expansion plate includes the square section of thick bamboo that a plurality of increases in proper order from inside to outside bore, the biggest square section of thick bamboo lower surface of bore is contradicted in the distancer.

Through adopting above-mentioned technical scheme, inlay the distancer main part and locate the set casing in, thereby be connected concatenation shell and set casing and realize pressing from both sides tight fixedly to the distancer main part for the distancer main part is difficult for droing in the set casing, when need not use the distancer main part, the pulling expansion plate seals first opening, removes the opening and closing piece and seals the second opening, makes distancer main part, laser lens and emergence lens be difficult for contacting with external environment, has protected this device effectively.

The utility model discloses further set up to: the flexible locating part includes that two sets of symmetries are fixed in the elastic block on the square tube outer wall and set up on the adjacent square tube inner wall and supply the draw-in groove that elastic block inlayed and establish.

Through adopting above-mentioned technical scheme, when the expansion plate is tensile, the elastic block will inlay and locate in the draw-in groove, avoids the square tube to drop from adjacent square tube, and when the expansion plate shrink, the elastic block will produce deformation and support tightly in the inner wall of adjacent square tube, has avoided the square tube to slide under the effect of gravity.

The utility model discloses further set up to: and a pulling plate convenient for pulling the square barrel is fixed on the upper surface of the square barrel with the smallest caliber.

Through adopting above-mentioned technical scheme, be convenient for spur square tube through the arm-tie, and when the expansion plate shrink, the arm-tie that is located on the minimum square tube of bore will be contradicted in the tip of adjacent square tube to thereby avoid the minimum square tube of bore to imbed completely in the adjacent square tube and be difficult to take out the minimum square tube of bore.

The utility model discloses further set up to: the telescopic plate is provided with a first limiting part used for limiting movement of the contracted telescopic plate, the first limiting part comprises a rotating groove formed in the upper surface of a square barrel with the largest caliber, a placing groove formed in the wall of the rotating groove, a rotating plate connected to the side wall of the rotating groove in a rotating mode, a limiting plate fixed to the lower surface of the rotating plate and used for limiting movement of the pull plate, and a driving spring fixed to the wall of the placing groove and used for driving the rotating plate to rotate so that the limiting plate abuts against the pull plate, and the driving spring is fixedly connected to the lower surface of the rotating plate.

Through adopting above-mentioned technical scheme, when the expansion plate shrink, rotate the rotor plate and make drive spring stretched to the pulling arm makes the arm-tie contradict in the terminal surface of adjacent square tube, drive spring will drive the rotor plate and rotate, and the rotor plate will drive the limiting plate and rotate and make the limiting plate support tightly in the surface of arm-tie, makes the expansion plate difficult quilt under the effect of lacking the external force and stretches, thereby has realized further spacing to the expansion plate.

The utility model discloses further set up to: be equipped with the second locating part that is used for the motion of spacing tensile expansion plate on the expansion plate, the second locating part includes that two sets of symmetries are seted up the spout on the minimum square cylinder both sides lateral wall of bore, is seted up the groove is established to the inlaying on the set casing inner wall, slides and inlays the wedge of locating in the spout and be fixed in the spout bottom and be used for driving the wedge and slide to inlay and locate and inlay the spacing spring of establishing the inslot, thereby be equipped with the guide surface of being convenient for the wedge roll-off inlays and establishes the groove shrink expansion plate on the wedge, spacing spring fixed connection is in the wedge.

By adopting the technical scheme, when the expansion plate is stretched, the square barrel with the smallest caliber is pulled to enable the expansion plate to seal the first opening, the sliding groove corresponds to the embedding groove, the limiting spring enables the driving wedge block to be embedded in the embedding groove in a sliding mode, the expansion plate is limited, and the stability of the expansion plate is guaranteed;

when the expansion plate needs to be contracted, the square barrel is pulled, the guide surface of the wedge block is abutted to the side wall embedded with the groove, so that the wedge block gradually sinks into the sliding groove, and when the wedge block completely sinks into the sliding groove, the square barrel can be continuously pulled to realize the contraction of the expansion plate.

The utility model discloses further set up to: the opening and closing part comprises a first limiting groove which is arranged on the inner wall of the fixed shell along the width direction of the fixed shell and communicated with the second opening, a sealing plate which is embedded in the first limiting groove along the length direction of the first limiting groove in a sliding manner and used for sealing the second opening, and cleaning cloth which is fixed on the surface of the sealing plate and is abutted to the laser lens and the transmitting lens.

Through adopting above-mentioned technical scheme, first spacing groove makes the closing plate only can slide along the width direction of set casing to realized having reduced the dust on laser lens and the transmitting lens to the open and close of second open-ended, and when the closing plate slided, cleaning cloth will clean laser lens and transmitting lens, has guaranteed measuring result's accuracy.

The utility model discloses further set up to: the tip of set casing is seted up along set casing width direction and is linked together in the second spacing groove of first spacing groove, sliding fit is equipped with the threaded rod of fixed connection in the closure plate surface in the second spacing groove, threaded connection is in supporting the screw thread section of thick bamboo in the set casing outer wall tightly on the threaded rod.

Through adopting above-mentioned technical scheme, screw up a screw thread section of thick bamboo and make the tip of a screw thread section of thick bamboo support tightly in the outer wall of set casing, can realize the fixed to the closing plate for the closing plate is difficult for sliding because of gravity factor mistake, has guaranteed the closing plate to the closed action of second open-ended.

The utility model discloses further set up to: the outer walls of the two sides of the fixed shell are respectively fixed with a fixed plate, and the fixed plates are provided with locking bolts which are in threaded connection with the fixed plates and the splicing shell.

Through adopting above-mentioned technical scheme, can realize being connected between set casing and the concatenation shell through the locking bolt, thereby set casing and concatenation shell will support tightly in the fixed of measuring apparatu main part realization to the measuring apparatu main part.

To sum up, the utility model discloses following beneficial effect has:

1. the arrangement of the telescopic plate and the closing piece ensures that the distance measuring instrument main body, the laser lens and the generating lens are not easy to contact with the external environment, thereby effectively protecting the device;

2. the second limiting piece is arranged to limit the expansion plate, so that the stability of the expansion plate is ensured;

3. due to the arrangement of the cleaning cloth, dust on the laser lens and the transmitting lens is reduced, and the accuracy of a measuring result is ensured.

Drawings

Fig. 1 is a schematic structural diagram of an assembly according to an embodiment of the present invention;

fig. 2 is a cross-sectional view for showing the expansion plate in the embodiment of the present invention;

FIG. 3 is a cross-sectional view of an embodiment of the present invention illustrating a rotating plate;

fig. 4 is a schematic structural view for showing a pulling plate in an embodiment of the present invention;

FIG. 5 is a cross-sectional view illustrating a connection manner of the square tube and the stationary case according to an embodiment of the present invention;

fig. 6 is a cross-sectional view showing a closing plate according to an embodiment of the present invention.

In the figure: 1. a rangefinder body; 11. a laser lens; 12. an emission lens; 2. a stationary case; 21. a first opening; 22. a second opening; 23. embedding a groove; 24. a first limit groove; 25. a second limit groove; 26. a threaded rod; 27. a threaded barrel; 28. a fixing plate; 29. locking the bolt; 3. splicing the shells; 31. a retractable plate; 311. a square cylinder; 312. an elastic block; 313. a card slot; 314. pulling a plate; 315. a rotating groove; 316. a placement groove; 317. a rotating plate; 318. a limiting plate; 319. a drive spring; 32. a closing plate; 321. a cleaning cloth; 33. a chute; 34. a wedge block; 35. a limiting spring; 36. a guide surface.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, a handheld laser range finder comprises a range finder main body 1, an emission source (not shown in the figure) fixed in the range finder main body 1, a laser lens 11 and an emission lens 12 fixed on the range finder main body 1, and a housing for embedding the range finder main body 1.

The shell includes set casing 2, concatenation shell 3, offer in 2 upper surfaces of set casing and supply the first opening 21 that distancer main part 1 exposes, offer in 2 tip of set casing and supply the second opening 22 that laser lens 11 and transmitting lens 12 expose, locate on 3 inner walls of concatenation shell and be used for the first opening 21's of switching expansion plate 31 and the switching piece that slides and connect in set casing 2 and be used for switching second opening 22.

The outer walls of the two sides of the fixed shell 2 are fixed with fixed plates 28, the fixed plates 28 are provided with locking bolts 29 which are in threaded connection with the fixed plates 28 and the splicing shell 3, the locking bolts 29 realize connection between the fixed shell 2 and the splicing shell 3, and the fixed shell 2 and the splicing shell 3 are abutted against the measuring instrument main body so as to realize fixation of the measuring instrument main body.

The expansion plate 31 comprises a plurality of square cylinders 311 with the diameters increasing from inside to outside, and the lower surface of the square cylinder 311 with the largest diameter is abutted to the distance measuring instrument main body 1, so that the measuring instrument main body is not prone to shaking.

As shown in fig. 2, a telescopic limiting member is disposed between adjacent square tubes 311, the telescopic limiting member includes two sets of elastic blocks 312 symmetrically fixed on the outer wall of the square tube 311 and a slot 313 opened on the inner wall of the adjacent square tube 311, the elastic blocks 312 are made of rubber, when the expansion plate 31 is stretched, the elastic blocks 312 are embedded in the slot 313, so as to prevent the square tube 311 from falling off from the adjacent square tube 311, when the expansion plate 31 is contracted, the elastic blocks 312 deform and abut against the inner wall of the adjacent square tube 311, and prevent the square tube 311 from sliding under the action of gravity.

As shown in fig. 3 and 4, a pulling plate 314 is fixed on the upper surface of the square tube 311 with the smallest caliber, the pulling plate 314 is convenient for pulling the square tube 311, and when the expansion plate 31 contracts, the pulling plate 314 abuts against the end of the adjacent square tube 311, so that the square tube 311 with the smallest caliber is prevented from being completely embedded into the adjacent square tube 311, and the square tube 311 with the smallest caliber is difficult to take out.

The expansion plate 31 is provided with a first stopper, the first stopper includes a rotating groove 315 provided on the upper surface of the square tube 311 having the largest caliber, a placement groove 316 provided on the groove wall of the rotating groove 315, a rotating plate 317 rotatably connected to the side wall of the rotating groove 315, a stopper plate 318 fixed to the lower surface of the rotating plate 317, and a driving spring 319 fixed to the groove wall of the placement groove 316, and the driving spring 319 is fixedly connected to the lower surface of the rotating plate 317.

When the driving spring 319 is in a normal state, the rotating plate 317 abuts against the bottom of the rotating groove 315, and the limiting plate 318 abuts against the surface of the pulling plate 314, so that the expansion plate 31 is not easily stretched due to the lack of external force, and further limitation of the expansion plate 31 is realized.

As shown in fig. 4 and 5, the expansion plate 31 is provided with a second limiting member, the second limiting member includes two sets of sliding grooves 33 symmetrically formed on the side walls of the two sides of the square tube 311 with the smallest caliber, an embedded groove 23 formed on the inner wall of the stationary casing 2, a wedge block 34 slidably embedded in the sliding groove 33, and a limiting spring 35 fixed at the bottom of the sliding groove 33, the wedge block 34 is provided with a guide surface 36, and the limiting spring 35 is fixedly connected to the wedge block 34.

When the expansion plate 31 seals first opening 21, spacing spring 35 will drive wedge 34 and slide to inlay and locate in inlaying groove 23, realize spacing to expansion plate 31, the stability of expansion plate 31 has been guaranteed, when needs shrink expansion plate 31, the spigot surface 36 of wedge 34 will contradict in the lateral wall of inlaying groove 23 for wedge 34 sinks gradually in spout 33, when treating that wedge 34 sinks completely in spout 33, can continue to stimulate arm-tie 314 and realize the shrink of expansion plate 31.

As shown in fig. 6, the opening/closing member includes a first limiting groove 24 opened on the inner wall of the fixing housing 2 along the width direction of the fixing housing 2 and communicated with the second opening 22, a closing plate 32 slidably embedded in the first limiting groove 24 along the length direction of the first limiting groove 24, and a cleaning cloth 321 fixed on the surface of the closing plate 32 and abutted against the laser lens 11 and the emission lens 12, wherein the cleaning cloth 321 is made of lint-free cloth.

The first limit groove 24 enables the closing plate 32 to only slide along the width direction of the fixing shell 2, so that opening and closing of the second opening 22 are achieved, when the closing plate 32 slides, the cleaning cloth 321 wipes and cleans the laser lens 11 and the transmitting lens 12, dust on the laser lens 11 and the transmitting lens 12 is reduced, and accuracy of a measuring result is guaranteed.

The second spacing groove 25 that communicates in first spacing groove 24 is seted up along 2 width direction of set casing to the tip of set casing 2, sliding fit is equipped with fixed connection in the threaded rod 26 on closing plate 32 surface in second spacing groove 25, threaded connection is in a screw thread section of thick bamboo 27 on the threaded rod 26, the tip of a screw thread section of thick bamboo 27 supports the outer wall in tight in set casing 2, realized fixing closing plate 32, make closing plate 32 be difficult for because of gravity factor mistake slides, the sealing of closing plate 32 to second opening 22 has been guaranteed.

The implementation principle of the embodiment is as follows: when the range finder main body 1 is not needed to be used, the sliding closing plate 32 closes the second opening 22, the threaded cylinder 27 is screwed down, so that the end part of the threaded cylinder 27 abuts against the outer wall of the fixed shell 2, the closing plate 32 is fixed, the closing plate 32 is not prone to mistakenly sliding due to gravity factors, and the closing effect of the closing plate 32 on the second opening 22 is guaranteed.

Thereby rotate the rotating plate 317 and cancel the support of limiting plate 318 to arm-tie 314 tightly, spur arm-tie 314, the outer elastic block 312 of square tube 311 will inlay in the draw-in groove 313 of adjacent square tube 311, spacing between the adjacent square tube 311 has been realized, continue spur arm-tie 314, make expansion plate 31 seal first opening 21, make spout 33 correspond to and inlay groove 23 simultaneously, spacing spring 35 will drive wedge 34 and slide to inlay and locate in inlaying groove 23, realize spacing to expansion plate 31, the stability of expansion plate 31 has been guaranteed.

The embodiments of the present invention are the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a hand-held type laser range finder, includes distancer main part (1), is fixed in the emission source in distancer main part (1), is fixed in laser lens (11) and transmitting lens (12) on distancer main part (1) and supplies distancer main part (1) to inlay the shell of establishing, its characterized in that: the shell is including being can dismantle the connection and being used for pressing from both sides set casing (2) and concatenation shell (3) of tight distancer main part (1), set up in set casing (2) upper surface and supply first opening (21) that distancer main part (1) exposes, set up in set casing (2) tip and supply second opening (22) that laser lens (11) and transmitting lens (12) expose, locate on concatenation shell (3) inner wall and be used for expansion plate (31) of the first opening of switching (21) and slide and connect in set casing (2) and be used for the switching piece of switching second opening (22), expansion plate (31) include a plurality of from inside to outside bore square tube (311) that increase in proper order, the biggest square tube of bore (311) lower surface contradicts in distancer main part (1), and is adjacent be equipped with flexible locating part between square tube (311).

2. A hand-held laser rangefinder according to claim 1, wherein: the telescopic limiting part comprises two groups of elastic blocks (312) which are symmetrically fixed on the outer wall of the square tube (311) and clamping grooves (313) which are arranged on the inner wall of the adjacent square tube (311) and are used for embedding the elastic blocks (312).

3. A hand-held laser rangefinder according to claim 1, wherein: and a pulling plate (314) which is convenient for pulling the square barrel (311) is fixed on the upper surface of the square barrel (311) with the smallest caliber.

4. A hand-held laser rangefinder according to claim 3, wherein: be equipped with the first locating part that is used for spacing shrink expansion plate (31) motion on expansion plate (31), first locating part is including offering rotating slot (315) at the biggest square barrel (311) upper surface of bore, offering standing groove (316) at rotating slot (315) cell wall, rotating the rotating plate (317) of connecting in rotating slot (315) lateral wall, being fixed in limiting plate (318) that rotating plate (317) lower surface is used for spacing arm-tie (314) motion and being fixed in standing groove (316) cell wall and being used for driving rotating plate (317) and rotate thereby make limiting plate (318) support tightly in drive spring (319) of arm-tie (314), drive spring (319) fixed connection is in the lower surface of rotating plate (317).

5. A hand-held laser rangefinder according to claim 1, wherein: be equipped with the second locating part that is used for spacing tensile expansion plate (31) motion on expansion plate (31), the second locating part includes that two sets of symmetries are seted up spout (33) on the minimum square barrel of bore (311) both sides lateral wall, set up and establish groove (23) in inlaying on set casing (2) inner wall, slide and inlay wedge (34) of locating in spout (33) and be fixed in spout (33) bottom and be used for driving wedge (34) slip to inlay and locate spacing spring (35) of inlaying in establishing groove (23), thereby be equipped with guide surface (36) that be convenient for wedge (34) roll-off inlays and establish groove (23) shrink expansion plate (31) on wedge (34), spacing spring (35) fixed connection is in wedge (34).

6. A hand-held laser rangefinder according to claim 1, wherein: the opening and closing part comprises a first limiting groove (24) which is arranged on the inner wall of the fixed shell (2) along the width direction of the fixed shell (2) and communicated with the second opening (22), a closing plate (32) which is embedded in the first limiting groove (24) along the length direction of the first limiting groove (24) in a sliding manner and used for closing the second opening (22), and cleaning cloth (321) which is fixed on the surface of the closing plate (32) and is abutted to the laser lens (11) and the transmitting lens (12).

7. The hand-held laser rangefinder of claim 6, wherein: the end of the fixing shell (2) is provided with a second limit groove (25) communicated with the first limit groove (24) along the width direction of the fixing shell (2), a threaded rod (26) fixedly connected to the surface of the closing plate (32) is embedded in the second limit groove (25) in a sliding manner, and the threaded rod (26) is connected with a threaded cylinder (27) tightly abutted to the outer wall of the fixing shell (2) in a threaded manner.

8. A hand-held laser rangefinder according to claim 1, wherein: all be fixed with fixed plate (28) on the outer wall of set casing (2) both sides, be equipped with locking bolt (29) of threaded connection in fixed plate (28) and concatenation shell (3) on fixed plate (28).