CN217820865U

CN217820865U - Hand-held type bridge construction laser range finder

Info

Publication number: CN217820865U
Application number: CN202220901071.9U
Authority: CN
Inventors: 高春雷; 程瑜; 林家炜; 曾爱军; 辛童
Original assignee: SHENZHEN JIAOYUN ENGINEERING GROUP CO LTD
Current assignee: SHENZHEN JIAOYUN ENGINEERING GROUP CO LTD
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-11-15
Anticipated expiration: 2032-04-19

Abstract

The utility model belongs to the technical field of bridge construction, especially, be a hand-held type bridge construction laser range finder, including hand-held type laser range finder body, control button and liquid crystal display are installed in the top surface of hand-held type laser range finder body embedding respectively, and the head end embedding of hand-held type laser range finder body is installed the range lens, still includes the plastics lag; a key shielding plate is hinged to the top of the open end of the plastic protective sleeve and used for shielding the control keys; a transparent glass dustproof plate is embedded and mounted at the position, corresponding to the ranging lens, of the end part of the plastic protective sleeve; the utility model discloses a hand-held type bridge construction laser range finder utilizes the plastics lag and the button sunshade of setting, can carry out safety protection to control button, range lens and liquid crystal display simultaneously to need not to take off the plastics lag when using, played the protecting effect of preferred, and this subassembly convenient to use adopts the plastics component, and is with low costs, and life is also longer.

Description

Hand-held type bridge construction laser range finder

Technical Field

The utility model belongs to the technical field of the bridge construction, concretely relates to hand-held type bridge construction laser range finder.

Background

Constructing a bridge according to the design content; the hand-held laser range finder is a common instrument for bridge construction, the laser range finder is an instrument for measuring the distance to a target by using a certain parameter of modulated laser, the measuring range of the laser range finder is 3.5-5000 meters, the hand-held laser range finder is divided into a phase range finder and a pulse range finder according to a distance measuring method, the pulse laser range finder emits a beam or a sequence of short pulse laser beams to the target during working, a photoelectric element receives the laser beams reflected by the target, a timer measures the time from emission to reception of the laser beams and calculates the distance from an observer to the target, the phase range finder detects the distance by detecting the phase difference generated when the emitted light and the reflected light are transmitted in space, the laser range finder has light weight, small volume, simple operation, high speed and accuracy, and the error is only one fifth to one hundred times of that of other optical range finders.

Traditional hand-held type laser range finder installs the protection for hand-held type laser range finder's range finding camera lens and button when using, can set up a lot of annex, if shielding piece and pad pasting, though can play certain guard action, but the cost is higher, and is troublesome to use, and the life of pad pasting is also not long, and it is also more troublesome to change after the pad pasting wearing and tearing.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides a hand-held type bridge construction laser range finder has convenient to use, with low costs and long service life's characteristics.

In order to achieve the above purpose, the utility model provides a following technical scheme: a handheld laser range finder for bridge construction comprises a handheld laser range finder body, wherein a control key and a liquid crystal display screen are embedded and mounted on the top surface of the handheld laser range finder body respectively, a range finding lens is embedded and mounted at the head end of the handheld laser range finder body, the handheld laser range finder further comprises a plastic protective sleeve, and the plastic protective sleeve is sleeved on the handheld laser range finder body from the head end of the handheld laser range finder body so as to be used for shielding the range finding lens and the liquid crystal display screen; a key shielding plate is hinged to the top of the open end of the plastic protective sleeve and used for shielding the control keys; and a transparent glass dust guard is embedded in the position, corresponding to the distance measuring lens, of the end part of the plastic protective sleeve.

As a preferred technical scheme of the utility model, the inner wall of plastics lag is fixed with the direction cutting, the lateral surface of hand-held type laser range finder body has been seted up and has been held the direction slot of direction cutting.

As an optimized technical scheme of the utility model, the plastic protection cover with the button sunshade is the transparent plastic component.

As a preferred technical solution of the present invention, an L-shaped limiting plate is hinged to the top surface of the key shielding plate, an L-shaped elastic sheet is fixed to the tail end of the hand-held laser range finder body, and a notch for the elastic sheet to be embedded into is formed at the free end of the limiting plate; a limiting lug is fixed on the elastic sheet, and a limiting groove capable of accommodating the limiting lug is formed in the outer wall of the limiting plate; the top surface of the limiting lug is an inclined surface.

As an optimal technical scheme of the utility model the level bubble is still installed to the tail end of hand-held type laser range finder body.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a hand-held type bridge construction laser range finder utilizes the plastics lag and the button sunshade of setting, can carry out safety protection to control button, range finding camera lens and liquid crystal display simultaneously to need not to take off the plastics lag when using, played the protecting effect of preferred, and this subassembly convenient to use adopts the plastic component, and is with low costs, and life is also longer.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 2 according to the present invention;

in the figure: 1. a hand-held laser rangefinder body; 2. a control key; 3. a distance measuring lens; 4. a plastic protective sleeve; 5. a key shielding plate; 6. a limiting plate; 7. a transparent glass dust guard; 8. guiding the inserting strips; 9. a guide slot; 10. a notch; 11. a limiting groove; 12. an elastic sheet; 13. a limiting bump; 14. horizontal bubble; 15. and a liquid crystal display screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: a hand-held laser range finder for bridge construction comprises a hand-held laser range finder body 1, wherein a control key 2 and a liquid crystal display screen 15 are respectively embedded and mounted on the top surface of the hand-held laser range finder body 1, a range lens 3 is embedded and mounted at the head end of the hand-held laser range finder body 1, the hand-held laser range finder further comprises a plastic protective sleeve 4, and the plastic protective sleeve 4 is sleeved on the hand-held laser range finder body 1 from the head end of the hand-held laser range finder body 1 so as to be used for shielding the range lens 3 and the liquid crystal display screen 15; a key shielding plate 5 is hinged to the top of the opening end of the plastic protective sleeve 4 and used for shielding the control key 2; the end part of the plastic protective sleeve 4 is embedded with a transparent glass dust guard 7 at a position corresponding to the distance measuring lens 3 so as to facilitate the laser to pass through, when the laser device is idle, the plastic protective sleeve 4 is sleeved on the handheld laser distance measuring instrument body 1 from the head end of the handheld laser distance measuring instrument body 1 so as to be used for shielding the distance measuring lens 3 and the liquid crystal display screen 15, the turnover key shield plate 5 is used for shielding the control key 2, and meanwhile, the distance measuring lens 3, the liquid crystal display screen 15 and the control key 2 are safely protected, so that a better protection effect is achieved; when carrying out the range finding use, upturning button sunshade 5 in order to show out control button 2, promoting a certain distance with plastics lag 4 towards the front side in order to reveal liquid crystal display 15, surveying personnel controls hand-held type laser range finder body 1 work through control button 2, and range finding camera lens 3 sends laser and is used for detecting the distance of target to surveying personnel, shows the distance on liquid crystal display 15.

Specifically, as shown in fig. 1 and fig. 2, in this embodiment, a guiding insertion strip 8 is fixed on the inner wall of the plastic protection sleeve 4, and a guiding insertion slot 9 capable of accommodating the guiding insertion strip 8 is formed in the outer side surface of the handheld laser range finder body 1, so that the plastic protection sleeve 4 can be installed in a drawing mode, and is convenient to install and use and stable to install.

Specifically, as shown in fig. 1 and fig. 2, in this embodiment, the plastic protecting cover 4 and the key shielding plate 5 are both transparent plastic members, so that, in actual use, if the liquid crystal display 15 can be directly observed through the plastic protecting cover 4, in actual distance measurement, after the key shielding plate 5 is turned up to expose the control keys 2, the plastic protecting cover 4 does not need to be pushed to move, and the convenience in use is further improved.

Specifically, according to fig. 1, fig. 2 and fig. 3, in this embodiment, an L-shaped position limiting plate 6 is hinged to the top surface of the key shielding plate 5, an L-shaped elastic sheet 12 is fixed to the tail end of the handheld laser range finder body 1, and a notch 10 for the elastic sheet 12 to be inserted into is formed in the free end of the position limiting plate 6; a limiting lug 13 is fixed on the elastic sheet 12, and a limiting groove 11 capable of accommodating the limiting lug 13 is further formed in the outer wall of the limiting plate 6; the top surface of the limiting bump 13 is an inclined surface, when the key shielding plate 5 is closed, the limiting plate 6 is turned over until the elastic sheet 12 is embedded into the notch 10, and meanwhile, the limiting bump 13 is also embedded into the limiting groove 11, so that the stability of the limiting plate 6 is improved, and the stability of the plastic protective sleeve 4 in sleeving is improved; the top surface of the limiting bump 13 is an inclined surface, so that the limiting plate 6 is more labor-saving to overturn, when the limiting plate 6 applies force to the inclined surface of the limiting bump 13, component force is generated, the elastic sheet 12 is bent towards the outer side until the limiting groove 11 moves to the position of the limiting bump 13, and the elastic sheet 12 pushes the limiting bump 13 to reset, so that the limiting bump 13 is embedded into the limiting groove 11; before the key shielding plate 5 is turned upwards, the limiting plate 6 needs to be turned upwards firstly, the elastic sheet 12 is slightly pulled towards the outer side, the limiting plate 6 can be easily turned upwards after the limiting bump 13 is separated from the limiting groove 11, and then the key shielding plate 5 can be turned upwards, so that the key shielding plate is very convenient.

Specifically, as shown in fig. 1 and fig. 2, in this embodiment, a horizontal bubble 14 is further installed at the tail end of the handheld laser range finder body 1, and is used for assisting a measurer to ensure that the handheld laser range finder body 1 is in a horizontal state when being used for measurement, so as to eliminate the influence of uncertain factors on a measurement result, such as the ground of a test point is not horizontal, and improve the measurement accuracy.

The utility model discloses a theory of operation and use flow: the utility model discloses a hand-held type bridge construction laser range finder, in idle time, establish plastics lag 4 on hand-held type laser range finder body 1 from the head end cover of hand-held type laser range finder body 1 for cover range lens 3 and liquid crystal display 15, upset button sunshade 5 is used for covering control button 2, carries out safety protection to range lens 3, liquid crystal display 15 and control button 2 simultaneously, has played the protective effect of preferred;

when the device is used for distance measurement, the key shielding plate 5 is turned upwards to expose the control key 2, the plastic protective sleeve 4 is pushed towards the front side for a certain distance to expose the liquid crystal display screen 15, a measurer controls the handheld laser distance measuring instrument body 1 to work through the control key 2, the distance measuring lens 3 emits laser to detect the distance from a target to the measurer, and the distance is displayed on the liquid crystal display screen 15;

in addition, because the plastic protective sleeve 4 and the key shielding plate 5 are both transparent plastic components, in actual use, if the liquid crystal display screen 15 can be directly observed through the plastic protective sleeve 4, in actual distance measurement, after the key shielding plate 5 is turned upwards to expose the control keys 2, the plastic protective sleeve 4 does not need to be pushed to move, and the use convenience is further improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a hand-held type bridge construction laser range finder, includes hand-held type laser range finder body (1) the top surface of hand-held type laser range finder body (1) imbeds respectively and installs control button (2) and liquid crystal display (15) range camera lens (3), its characterized in that are installed in the head end embedding of hand-held type laser range finder body (1): the portable laser range finder further comprises a plastic protective sleeve (4), wherein the plastic protective sleeve (4) is sleeved on the portable laser range finder body (1) from the head end of the portable laser range finder body (1) and is used for covering the range finding lens (3) and the liquid crystal display screen (15); a key shielding plate (5) is hinged to the top of the open end of the plastic protective sleeve (4) and used for shielding the control key (2); and a transparent glass dustproof plate (7) is embedded and mounted at the position, corresponding to the distance measuring lens (3), of the end part of the plastic protective sleeve (4).

2. The hand-held bridge construction laser rangefinder of claim 1, wherein: the inner wall of the plastic protective sleeve (4) is fixed with a guide inserting strip (8), and a guide slot (9) capable of containing the guide inserting strip (8) is formed in the outer side face of the handheld laser range finder body (1).

3. The hand-held bridge construction laser rangefinder of claim 1, wherein: the plastic protective sleeve (4) and the key shielding plate (5) are both transparent plastic components.

4. The hand-held bridge construction laser rangefinder of claim 1, wherein: the top surface of the key shield plate (5) is hinged with an L-shaped limiting plate (6), an L-shaped elastic sheet (12) is fixed at the tail end of the handheld laser range finder body (1), and a notch (10) for the elastic sheet (12) to be embedded into is formed in the free end of the limiting plate (6); a limiting bump (13) is fixed on the elastic sheet (12), and a limiting groove (11) capable of accommodating the limiting bump (13) is formed in the outer wall of the limiting plate (6); the top surface of the limiting bump (13) is an inclined surface.

5. The hand-held bridge construction laser rangefinder of claim 1, wherein: and a horizontal bubble (14) is also arranged at the tail end of the handheld laser range finder body (1).