CN115932796B

CN115932796B - Handheld distance measuring equipment

Info

Publication number: CN115932796B
Application number: CN202310018015.XA
Authority: CN
Inventors: 雷琦; 葛军; 唐疆; 秦建伟
Original assignee: Zhongqi Architectural Planning And Design Co ltd
Current assignee: Zhongqi Architectural Planning And Design Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-05-26
Anticipated expiration: 2043-01-06
Also published as: CN115932796A

Abstract

The application relates to the technical field of distance measurement, discloses a hand-held type measures distance equipment, which comprises a housin, one side of casing is provided with sighting device, sighting device is including setting up in casing one side and with the parallel spirit level of casing, connecting piece of connecting spirit level and casing, be provided with hollow fixed column in the spirit level, the fixed column internalization is provided with and is cylindric horizontal piece, fixed column, horizontal piece are transparent material and make, the position that just is close to one side in the horizontal piece inlays and is equipped with the gravity piece. The device has the advantages that the device is convenient to accurately aim the target through the aiming device on the equipment, and the accuracy of distance measurement is improved.

Description

Handheld distance measuring equipment

Technical Field

The application relates to the technical field of distance measurement, in particular to handheld distance measurement equipment.

Background

The hand-held distance measuring device is an instrument for accurately measuring the distance of a target by using laser. The laser distance measuring device emits a very thin laser beam to the target during operation, the photoelectric element receives the laser beam reflected by the target, and the timer measures the time from the emission to the reception of the laser beam and calculates the distance from the observer to the target. The distance, area and volume can be measured, and the measurement can be performed both indoors and outdoors.

However, in the process of implementing the related technical scheme, at least the following technical problems are found: under the condition that accurate measurement is needed, shake is easy to occur through the hand of an operator, the accurate aiming of a target is inconvenient, and deviation is easy to occur when measurement is performed.

Disclosure of Invention

This application is through providing a hand-held type measurement distance equipment, has solved among the prior art under the circumstances that needs accurate measurement, through the operator handheld, takes place shake easily, is inconvenient for accurate aiming the target, produces the problem of deviation when leading to carrying out the survey easily, has realized being convenient for accurately aim the target through the sighting device on the measurement distance equipment, improves the accuracy of distance measurement.

The application provides a hand-held type measures distance equipment, which comprises a housin, one side of casing is provided with sighting device, sighting device is including setting up in casing one side and with the parallel spirit level of casing, connecting piece of connecting spirit level and casing, be provided with hollow fixed column in the spirit level, the activity is provided with the horizontal piece that is cylindric in the fixed column, horizontal piece are transparent material and make, the position that just is close to one side in the horizontal piece inlays and is equipped with the gravity piece.

Further, the leveling instrument is internally provided with an aiming pipe consistent with the length direction of the shell, two ends of the aiming pipe respectively penetrate through two end faces of the leveling instrument, and the center of the aiming pipe penetrates through the center of the leveling block.

Further, one side of casing is provided with the storage tank that holds the spirit level, the one end of storage tank is provided with first draw-in groove, the tip of spirit level is provided with elastic first connecting piece, the tip of first connecting piece is provided with the first fixture block with draw-in groove joint complex.

Further, the connecting piece is including articulating in spirit level one side and the head rod and the second connecting rod that the interval set up, head rod and second connecting rod are parallel to each other, the other end of head rod and second connecting rod all articulates with the cell wall of accomodating the groove, the tank bottom of accomodating the groove and the lateral wall of spirit level all are fixed with the stationary blade that sets up relatively, two the same side of stationary blade is connected fixedly through elastic V-arrangement piece, when the spirit level stretches out, head rod and the terminal surface butt of accomodating the groove.

Further, the below of casing is provided with strutting arrangement, strutting arrangement is including setting up in the branch of casing bottom, setting up the support bar of branch lower extreme, a plurality of even arrangements of branch.

Further, two first mounting grooves parallel to each other are formed in the bottom of the shell, the supporting bars are inserted into the first mounting grooves, two ends of each supporting bar are hinged to the bottom of the first mounting grooves and the supporting bars respectively, two supporting bars are arranged at intervals, each supporting bar is connected with two supporting bars and is parallel to the two supporting bars hinged to the supporting bars, and positioning pieces for driving the supporting bars to keep a vertical state are arranged on the shell.

Further, the second mounting groove has been seted up to the bottom of casing, two the same end of first mounting groove is through second mounting groove intercommunication, the setting element is including being fixed in the fixed block in the second mounting groove, peg graft on the fixed block and with fixed block sliding fit's slide bar, set up in the locating strip of slide bar one end, the positioning spring on the slide bar is located to the cover, the both ends of positioning spring are fixed connection locating strip and fixed block respectively, the locating strip supports with a branch lateral wall that stretches out tightly.

Further, two the same end of support bar is fixed through the connecting strip, the connecting strip is pegged graft in the second mounting groove, the second draw-in groove has been seted up to the bottom of casing, one side of connecting strip is fixed with elastic second connection piece, the tip of second connection piece is provided with the second fixture block with second draw-in groove joint.

Further, the display screen is arranged above the shell, the display device is arranged above the shell and comprises a movable plate obliquely arranged on the upper end face of the shell and a reflecting lens which is arranged on one side of the movable plate and used for reflecting information of the display screen, and an acute angle included angle is formed between the lens and the display screen.

Further, the first recess has been seted up at the top of casing and the position that is close to the front end, the second recess with first recess intercommunication has all been seted up at the both ends that just lie in the display screen on the casing, the third recess has all been seted up to the relative both walls of second recess, sliding connection has the guide bar in the third recess, the both sides of fly leaf are fixed with two guide bars respectively, one side of fly leaf articulates there are two installation poles, every the installation pole corresponds with a second recess, just the other end of installation pole is articulated with the tip of second recess, be provided with elastic V-arrangement spacer in the second recess, spacer and installation pole butt.

The technical scheme provided in the application has at least the following technical effects or advantages:

1. due to the adoption of the sighting device, the sighting device is arranged on the horizontal plane, the level instrument is utilized for observation, so that the sighting device and the target object are kept on the same horizontal plane, the distance measurement is conveniently carried out on the target object in alignment with the distance measurement device, the problem that the sighting device is convenient to accurately aim at the target object through the sighting device on the distance measurement device, and the accuracy of distance measurement is improved is effectively solved.

2. Owing to adopted the connecting piece, so when needing accurate range finding, stretch out the spirit level, utilize the connecting piece to support the connection to the spirit level for the spirit level keeps the same interval with the lateral wall of casing, conveniently aims the target object, and when needing rough range finding, spirit level isotructure can conveniently accomodate in accomodating the inslot, makes overall structure more simple and convenient, facilitates the use.

3. The display device is adopted, so that the information displayed on the screen can be conveniently checked by using the movable plate, the screen is irradiated through the lens, information data reflected by the display screen can be displayed on the lens, and the movable plate is inclined to a certain angle, so that the data displayed by the display screen can be checked after the condition of conveniently checking the level.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of an embodiment of the pointing device according to the present application;

FIG. 3 is a schematic structural view of a connector according to an embodiment of the present application;

FIG. 4 is a schematic structural view of a supporting device according to an embodiment of the present application;

FIG. 5 is a schematic structural view of a fixing device according to an embodiment of the present application;

in the figure: 1. a housing; 11. a display screen; 12. a keyboard; 13. a storage groove; 131. a first clamping groove; 14. a first mounting groove; 15. a second mounting groove; 151. a second clamping groove; 16. a first groove; 17. a second groove; 18. a third groove; 19. a movable hole; 2. a sighting device; 3. a level gauge; 31. fixing the column; 32. a horizontal block; 33. a gravity block; 34. a sight tube; 35. a first connecting piece; 36. a first clamping block; 4. a connecting piece; 41. a first connecting rod; 42. a second connecting rod; 43. a fixing piece; 44. a V-shaped piece; 5. a support device; 51. a support rod; 52. a support bar; 53. an extension rod; 6. a positioning piece; 61. a fixed block; 62. a slide bar; 63. a positioning strip; 64. a positioning spring; 65. a limiting block; 66. a connecting strip; 67. a second connecting piece; 68. a second clamping block; 7. a display device; 71. a guide rod; 72. a movable plate; 721. a fixing groove; 73. a lens; 74. a mounting rod; 75. a positioning sheet; 8. a fixing device; 81. a fixed rod; 82. a mounting piece; 83. a mounting block; 84. a movable block; 85. and a limiting piece.

Detailed Description

The embodiment of the application discloses provides a hand-held type measures distance equipment, through placing the measuring distance equipment on the horizontal plane, utilize level meter 3 to observe for the measuring distance equipment keeps on same horizontal plane with the target object, is convenient for aim at the target object with measuring distance equipment and carries out the range finding, has effectively solved among the prior art under the condition that needs accurate measurement, through the operator handheld, takes place the shake easily, is inconvenient for accurately aiming the target, produces the problem of deviation when leading to carrying out the survey easily, has realized being convenient for carry out accurate aiming to the target through sighting device 2 on the measuring distance equipment, improves the accuracy of distance measurement.

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, a handheld distance measuring device includes a rectangular casing 1, a display screen 11 and a keyboard 12 are mounted on an upper end surface of the casing 1, the display screen 11 can be used for displaying information data of a measured distance, and the keyboard 12 is convenient to operate. The sighting device 2 is installed on one side of the shell 1, and in daily use, distance measurement can be achieved only by aiming the front end of the equipment at a target object, but if accurate distance measurement is needed, the equipment can be placed on a horizontal plane and corresponds to the target object, and the sighting device 2 and the target object aim at the same horizontal plane, so that the target object and the equipment are positioned on the same horizontal plane, and accurate measurement is convenient.

Referring to fig. 2 and 3, the sighting device 2 includes a level 3 and a connector 4, the level 3 is mounted on one side of the housing 1, and the level 3 is elongated and parallel to the longitudinal direction of the housing 1. Both ends of the level meter 3 are formed with inclined planes, and the two inclined planes deviate from each other, the side wall of the shell 1 is formed with a storage groove 13, and the level meter 3 can be stored in the storage groove 13, so that the side wall of the shell 1 is kept in a flush state. The connecting piece 4 is used for connecting casing 1 and spirit level 3, can support spirit level 3 when spirit level 3 stretches out, and when spirit level 3 accomodates in accomodating groove 13, connecting piece 4 can fold in accomodating groove 13. The position fixed mounting that just is located the middle part in the spirit level 3 has hollow fixed column 31, and the activity is provided with in the fixed column 31 and is cylindric horizontal block 32, and the position that just is close to one side in the horizontal block 32 inlays and is equipped with gravity piece 33. The inside of the fixed column 31 is filled with lubricating oil. With the gravity block 33 maintained, the horizontal block 32 is kept in a horizontal state, and the target object and the equipment are kept on the same horizontal line by adjusting the height of the equipment, so that the target object can be aimed through the aiming pipe 34 for distance measurement. The level gauge 3, the fixed column 31 and the horizontal block 32 are all made of transparent materials, and preferably made of glass materials. The leveling instrument 3 is internally provided with an aiming pipe 34 consistent with the length direction of the shell 1, the aiming pipe 34 is a color plastic round pipe, two ends of the aiming pipe 34 respectively penetrate through two end faces of the leveling instrument 3, and the center of the aiming pipe 34 penetrates through the center of the leveling block 32 and can be observed through the aiming pipe 34. Even if the level 3 is placed in the storage groove 13, the level 3 and the fixing column 31 are made of transparent materials, so that the state of the horizontal block 32 can be observed from the outer side of the housing 1, and the angle of placement of the equipment can be adjusted. An infrared laser head is mounted at the front end of the shell 1 and near one side of the level 3, so that the infrared laser head can irradiate on a target object, and the point irradiated on the target object is conveniently observed by the aiming tube 34 for adjustment.

Referring to fig. 2 and 3, a first clamping groove 131 is formed at one end of the storage groove 13, one side of the first clamping groove 131 penetrates through the side wall of the housing 1, an elastic first connecting piece 35 is fixedly connected to the end of the level 3, the first connecting piece 35 is in a U shape, a first clamping block 36 is fixedly mounted at the end of the first connecting piece 35, a fixing hole is formed in the groove wall of the first clamping groove 131, and after the level 3 is pressed and mounted in the storage groove 13, the first clamping block 36 is matched with the clamping groove in a clamping mode under the action of the first connecting piece 35 and is inserted into the fixing hole. After the level 3 is required to be pulled out, the connection part of the first connecting piece 35 and the first clamping block 36 is pressed, so that the first connecting piece 35 is compressed, the first clamping block 36 is driven to be separated from the fixing hole, and the level 3 can be pulled out.

Referring to fig. 2 and 3, the connecting piece 4 includes a first connecting rod 41 and a second connecting rod 42, the first connecting rod 41 and the second connecting rod 42 are parallel to each other and are close to two ends of the level 3 respectively, one ends of the first connecting rod 41 and the second connecting rod 42 are hinged on a side wall of the level 3 close to the storage groove 13, the other ends of the first connecting rod 41 and the second connecting rod 42 are hinged with a groove wall of the storage groove 13, fixing pieces 43 which are oppositely arranged are fixed on the groove bottom of the storage groove 13 and the side wall of the level 3, the fixing pieces 43 are located between the first connecting rod 41 and the second connecting rod 42, and the same sides of the two fixing pieces 43 are connected and fixed through elastic V-shaped pieces 44, when the level 3 stretches out, the V-shaped pieces 44 stretch out, the first connecting rod 41 is abutted with one end face of the storage groove 13, so that the first connecting rod 41 and the second connecting rod 42 are perpendicular to the level 3 stretches out of the storage groove 13 and are relatively parallel to the shell 1. When the level 3 is accommodated in the accommodating groove 13, the V-shaped piece 44 is compressed, and the first connecting rod 41 and the second connecting rod 42 are inclined to the same side of the accommodating groove 13, so that the surface of the level 3 is flush with the outer surface of the housing 1.

Referring to fig. 2 and 4, the supporting device 5 is installed below the housing 1, so that the device can be supported conveniently, the height of the device is increased, and the target object can be aimed and positioned conveniently. The supporting device 5 comprises a supporting rod 51 and a supporting strip 52, two first mounting grooves 14 which are parallel to each other are formed in the bottom of the shell 1, the first mounting grooves 14 are formed in the length direction of the shell 1 and are close to the side wall of the shell 1, a second mounting groove 15 is formed in the bottom of the shell 1, the second mounting groove 15 is formed in the width direction of the shell 1 and is close to the front end of the shell 1, and the end parts of the two first mounting grooves 14 are communicated with the second mounting groove 15. One end of each strut 51 is hinged in the first mounting groove 14, two struts 51 are hinged in each first mounting groove 14, and when one strut 51 is accommodated in the first mounting groove 14, the other strut 51 positioned in the same mounting groove does not interfere with the strut 51. The other ends of the supporting rods 51 are hinged to supporting rod 52, two supporting rod 52 located on the same side are connected with two supporting rods 51 located in the same first mounting groove 14, the two supporting rod 52 are parallel to each other, the supporting rod 52 can be inserted into the first mounting groove 14, and after the supporting rod 52 is inserted into the first mounting groove 14, the supporting rod 52 can be flush with the bottom of the shell 1.

Referring to fig. 2 and 4, the positioning member 6 is installed in the first installation groove 14, and can drive the supporting rod 51 to keep a vertical state, so as to support the equipment. The locating piece 6 includes fixed block 61, slide bar 62, locating strip 63, locating spring 64, fixed block 61 fixed mounting is in second mounting groove 15, slide bar 62 grafting is with fixed block 61 on and with fixed block 61 sliding fit, the one end that is away from a branch 51 of slide bar 62 is fixed with stopper 65, the other end of slide bar 62 is close to a branch 51 and fixed mounting has locating strip 63, locating strip 63 slides along the length direction of second mounting groove 15, and when branch 51 perpendicular to casing 1, locating strip 63 and the one side butt that this branch 51 is close to first mounting groove 14, locating spring 64 cover is located on the slide bar 62, locating spring 64's both ends fixed connection locating strip 63 and fixed block 61 respectively. When the support rod 51 is turned up so that the support bar 52 extends out of the first mounting groove 14 and is parallel to the housing 1, the positioning bar 63 extends out under the action of the positioning spring 64 and abuts against the side wall of one support rod 51. The same ends of the two support bars 52 are fixed by connecting bars 66, and the connecting bars 66 are inserted into the second mounting groove 15. After the supporting bar 52 extends out of the second mounting groove 15, the supporting bar 51 far from the second mounting groove 15 is flush with the end of the supporting bar 52, and the supporting bar 51 and the supporting bar 52 are perpendicular to each other. A sliding groove is formed at one end of the supporting strip 52 away from the connecting strip 66, and the extending rod 53 is slidably connected in the sliding groove, so that after the supporting strip 52 extends out of the first mounting groove 14, the extending rod 53 can be pulled out, the supporting area of equipment is increased, and the supporting stability is improved. The bottom of casing 1 has seted up second draw-in groove 151, second draw-in groove 151 and second mounting groove 15 intercommunication to be fixed with elastic second connection piece 67 in one side of connecting strip 66, second connection piece 67 is the U-shaped, the fixed orifices has been seted up to the cell wall that second draw-in groove 151 kept away from second mounting groove 15, the tip fixed mounting of second connection piece 67 has second fixture block 68, after branch 51 folding accomodate in first mounting groove 14, extension rod 53 shrink in support bar 52 is inside, and support bar 52 peg graft in first mounting groove 14, connecting strip 66 peg graft in second mounting groove 15, second connection piece 67 peg graft in second draw-in groove 151, make second fixture block 68 and second draw-in groove 151 joint and stretch into the fixed orifices.

Referring to fig. 1 and 2, a display device 7 is installed above a housing 1, the display device 7 includes a guide rod 71, a movable plate 72, a lens 73 and a mounting rod 74, a first groove 16 is formed at the top of the housing 1 and near the front end, second grooves 17 communicated with the first grooves 16 are formed on the housing 1 and at two ends of a display screen 11, third grooves 18 are formed on two opposite groove walls of the second grooves 17, the first grooves 16 are arranged along the width direction of the housing 1, and the second grooves 17 and the third grooves 18 are arranged along the length direction of the housing 1. Each third groove 18 is internally and slidably connected with a guide rod 71, the movable plate 72 is inserted into the first groove 16, the lens 73 is fixedly arranged on one side of the movable plate 72, which is close to the shell 1, after the movable plate 72 is folded and stretched out, the movable plate 72 can be obliquely arranged above the shell 1, the lens 73 and the display screen 11 form an acute angle, and data information on the display screen 11 can be reflected out through the lens 73. Specifically, a program is installed in the device, the program is in the prior art, the front and back sides of the information displayed on the display screen 11 can be changed, the screen displayed on the display screen 11 can be switched by pressing the first key on the keyboard 12, the screen displayed on the display screen 11 has the front and back sides, and the data information of the front and back sides is mirrored. When the data displayed on the display screen 11 is the front, the operator can directly view the information on the screen, and when the data displayed on the display screen 11 is the back, the data information on the front can be viewed on the mirror 73 by reflection from the mirror 73. The movable plate 72 is fixed to the two guide bars 71 at both sides thereof. Each second groove 17 is internally provided with a mounting rod 74, one end of the mounting rod 74 is hinged with one side of the movable plate 72, the other end of the mounting rod is hinged with the end of the second groove 17, an elastic V-shaped locating plate 75 is fixedly arranged in the second groove 17, and an opening of the locating plate 75 faces one side of the first groove 16. One side of the positioning piece 75 is fixed with the bottom of the second groove 17, and the other side of the positioning piece 75 is abutted with the mounting rod 74. Under the action of external force, the positioning plate 75 supports the mounting rod 74, so that the mounting rod 74 is inclined from bottom to top to a position close to the front end of the shell 1, and the movable plate 72 is pulled to enable the movable plate 72 to incline from bottom to top to a side close to the display screen 11, and the movable plate 72, the mounting rod 74 and the upper end face of the shell 1 form a structure with a triangular section. When accurate ranging is required, the movable plate 72 can be erected, so that the movable plate 72 is obliquely arranged, and an operator can observe data information reflected on the lens 73 conveniently when aiming through the aiming device 2, thereby being convenient to operate, check and correct.

Referring to fig. 2 and 5, a fixing device 8 is attached to the upper end surface of the housing 1, and the movable plate 72 can be accommodated and fixed such that the movable plate 72 is placed in the first groove 16. The fixing device 8 comprises a fixing rod 81, a mounting plate 82, a mounting block 83, a movable block 84 and a limiting plate 85, wherein a fixing groove 721 is formed in one side of the movable plate 72 far away from the mounting plate 74, the fixing groove 721 is located in the middle of the side wall of the movable plate 72, two ends of the fixing rod 81 are fixedly connected with two opposite groove walls of the fixing groove 721 respectively, and the fixing rod 81 and the groove bottom of the fixing groove 721 are arranged at intervals. The mounting plate 82 is an elastic plate, the mounting plate 82 comprises a first plate body, a second plate body, a third plate body, a fourth plate body and a fifth plate body which are sequentially and fixedly connected, the first plate body is fixedly connected with the inner top wall of the shell 1, the second plate body is obliquely arranged from bottom to top to one side close to the first plate body, the upper end of the second plate body is fixedly connected with one side of the first plate body, the third plate body is parallel to the first plate body, one side of the third plate body is fixedly connected with the lower end of the second plate body, the fourth plate body is oppositely arranged with the second plate body, the inclination directions of the fourth plate body and the second plate body are opposite, the fifth plate body is parallel to the first plate body, the fifth plate body is close to the inner top wall of the shell 1, and the fifth plate body is fixedly connected with the upper end of the fourth plate body. The mounting block 83 is fixedly mounted on the fifth sheet body, is inserted into the fixing groove 721, is positioned on one side of the fixing rod 81 close to the bottom of the fixing groove 721, and is provided with an inclined surface formed at the upper end thereof, wherein the inclined surface faces away from the fixing rod 81. The movable hole 19 is formed in the upper end face of the shell 1 and located on one side of the first groove 16, the movable block 84 is inserted into the movable hole 19, the upper end face of the movable block 84 is flush with the upper end face of the shell 1, the lower end face of the movable block 84 is fixedly connected with the upper end face of the third sheet body, the limiting pieces 85 are fixedly mounted on the side walls of the movable block 84, two limiting pieces are symmetrically arranged on the side walls of the movable block 84, and the limiting pieces 85 are abutted to the inner top wall of the shell 1 and the position close to the movable hole 19. By moving the movable plate 72 to a position close to the movable hole 19, the movable plate 72 is unfolded and inserted into the first groove 16, by pressing the movable plate 72, the movable plate 72 presses the mounting block 83, after the movable plate 72 is completely and horizontally arranged, under the action of the mounting plate 82, the mounting block 83 is inserted into the fixing groove 721 to position the movable plate 72, so that the positioning plate 75 is compressed. When the movable plate 72 is required to be folded and extended, the movable block 84 is pressed, so that the movable block 84 drives the mounting block 83 to move towards the inside of the shell 1, and the mounting block 83 is separated from the fixing groove 721, and the movable plate 72 is obliquely arranged under the action of the positioning sheet 75.

The working principle of the embodiment of the application is as follows: by placing the distance measuring device on a horizontal plane, the infrared laser head irradiates the target object, and the point irradiated on the target object is observed through the aiming tube 34, the device is adjusted so that the device and the target object are kept on the same horizontal plane, and accurate distance measurement is performed.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

The foregoing is merely a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, within the scope of the present application, should apply to the present application, and all equivalents and modifications as fall within the scope of the present application.

Claims

1. The utility model provides a hand-held type measures distance equipment, includes casing (1), its characterized in that, one side of casing (1) is provided with sighting device (2), sighting device (2) are including setting up in casing (1) one side and with casing (1) parallel spirit level (3), connecting piece (4) of connecting spirit level (3) and casing (1), be provided with hollow fixed column (31) in spirit level (3), the activity is provided with in fixed column (31) and is cylindric horizontal piece (32), fixed column (31), horizontal piece (32) are transparent material and make, gravity piece (33) have been inlayed in the position that just is close to one side in horizontal piece (32); an aiming tube (34) consistent with the length direction of the shell (1) is arranged in the level (3), two ends of the aiming tube (34) respectively penetrate through two end faces of the level (3), and the center of the aiming tube (34) penetrates through the center of the horizontal block (32); an infrared laser head irradiating on a target object is arranged at the front end of the shell (1) and close to one side of the level meter (3), the infrared laser head is used for aiming a pipe (34) to observe a point irradiating on the target object, a containing groove (13) for containing the level meter (3) is formed in one side of the shell (1), a first clamping groove (131) is formed in one end of the containing groove (13), an elastic first connecting piece (35) is arranged at the end of the level meter (3), and a first clamping block (36) matched with the clamping groove in a clamping mode is arranged at the end of the first connecting piece (35); connecting piece (4) are including articulating in spirit level (3) one side and first connecting rod (41) and second connecting rod (42) that the interval set up, first connecting rod (41) and second connecting rod (42) are parallel to each other, the other end of first connecting rod (41) and second connecting rod (42) all articulates with the cell wall of accomodating groove (13), the tank bottom of accomodating groove (13) and the lateral wall of spirit level (3) all are fixed with stationary blade (43) of relative setting, two the same side of stationary blade (43) is fixed through elastic V-arrangement piece (44) connection, when spirit level (3) stretch out, first connecting rod (41) and the terminal surface butt of accomodating groove (13).

2. A hand-held distance measuring device according to claim 1, characterized in that a supporting means (5) is arranged below the housing (1), the supporting means (5) comprising a supporting bar (51) arranged at the bottom of the housing (1), a supporting bar (52) arranged at the lower end of the supporting bar (51), the supporting bars (51) being uniformly arranged in plurality.

3. A hand-held distance measuring device according to claim 2, characterized in that the bottom of the housing (1) is provided with two first mounting grooves (14) parallel to each other, the support bar (52) is inserted into the first mounting grooves (14), two ends of the support bar (51) are respectively hinged with the bottom of the first mounting grooves (14) and the support bar (52), two support bars (52) are arranged at intervals, each support bar (52) is connected with two support bars (51), the two support bars (51) hinged with the support bar (52) are parallel to each other, and the housing (1) is provided with a positioning piece (6) for driving the support bars (51) to keep a vertical state.

4. A hand-held distance measuring device according to claim 3, wherein the bottom of the housing (1) is provided with a second mounting groove (15), the same ends of the two first mounting grooves (14) are communicated through the second mounting groove (15), the positioning piece (6) comprises a fixed block (61) fixed in the second mounting groove (15), a sliding rod (62) inserted on the fixed block (61) and in sliding fit with the fixed block (61), a positioning strip (63) arranged at one end of the sliding rod (62), and a positioning spring (64) sleeved on the sliding rod (62), two ends of the positioning spring (64) are fixedly connected with the positioning strip (63) and the fixed block (61) respectively, and the positioning strip (63) is abutted against the side wall of one extending supporting rod (51).

5. The hand-held distance measuring device according to claim 4, wherein the same ends of the two supporting strips (52) are fixed through connecting strips (66), the connecting strips (66) are inserted into the second mounting grooves (15), second clamping grooves (151) are formed in the bottom of the shell (1), elastic second connecting pieces (67) are fixed on one sides of the connecting strips (66), and second clamping blocks (68) which are clamped with the second clamping grooves (151) are arranged at the end parts of the second connecting pieces (67).

6. A hand-held distance measuring device according to claim 1, characterized in that a display screen (11) is arranged above the housing (1), a display device (7) is arranged above the housing (1), the display device (7) comprises a movable plate (72) obliquely arranged on the upper end surface of the housing (1), and a reflecting lens (73) arranged on one side of the movable plate (72) and used for reflecting information of the display screen (11), and an acute angle is formed between the reflecting lens (73) and the display screen (11).

7. A hand-held distance measuring device according to claim 6, characterized in that a first groove (16) is formed in the top of the housing (1) and near the front end, a second groove (17) communicated with the first groove (16) is formed in the housing (1) and located at two ends of the display screen (11), a third groove (18) is formed in two opposite groove walls of the second groove (17), guide rods (71) are slidably connected in the third groove (18), two sides of the movable plate (72) are respectively fixed with the two guide rods (71), two mounting rods (74) are hinged to one side of the movable plate (72), each mounting rod (74) corresponds to one second groove (17), the other end of each mounting rod (74) is hinged to the end of each second groove (17), and elastic V-shaped positioning pieces (75) are arranged in the second groove (17) and abut against the mounting rods (74).