Laser level gauge

Abstract

The utility model relates to the technical field of level gauges, in particular to a laser level gauge, a sliding plate group is arranged on the back surface of a reticle group, the sliding plate group comprises an optical filter, a mounting group, a positioning group and a movable group, when a hand wheel buckle rotates and moves upwards, the sliding plate group is pushed to move upwards, so that the optical filter moves upwards to be coaxial with the optical reference axial direction of the level gauge, and the optical reference axial direction of the level gauge is coaxial with the optical reference axial direction; when the hand wheel buckle rotates and moves downwards, the sliding plate group is pushed to move downwards, and the optical filter leaves the optical system; when the optical filter moves upwards to be coaxial with the optical reference axial direction of the level gauge, the sliding plate toggles the power switch, the laser is turned on at the moment, and an operator can observe a laser point through the eyepiece group; the optical filter leaves the optical system, the sliding plate loosens the power switch, the laser is turned off, the sliding plate is separated from the arc-shaped reed, and the spring downwards extrudes the sliding plate to prevent the sliding plate from shaking, so that the optical filter cannot block the visual field, the light inlet amount cannot be reduced, and the use difficulty of a user is reduced while the observation distance and definition of the level gauge are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of level gauge especially is a laser level gauge. BACKGROUND

[0002] Laser level gauge is a kind of level gauge using laser beam to replace artificial reading, it makes laser beam emitted by laser to be introduced into level gauge optical system through turning prism, makes it emit horizontal laser beam along level gauge optical reference axis direction.Laser level gauge is divided into visible laser level gauge and non-visible laser level gauge two kinds, visible laser can observe the position of laser spot from ocular, and non-visible laser level gauge cannot realize this function.

[0003] Current visible laser level gauge technical scheme has following two kinds:

[0004] The first kind of scheme: when opening laser, manually install a filter film consistent with the wavelength of laser behind ocular group, reduce the power of laser shot to human eye, so that operator can observe the position of laser spot.

[0005] The second kind of scheme: coat filter film consistent with the wavelength of laser on the surface of turning prism, thereby reduce the power of laser shot to human eye, so that operator can observe the position of laser spot.

[0006] The first kind of scheme needs to manually install a filter film on ocular group, but will increase the use difficulty of operator, requires high professional accomplishment of user;Second kind of scheme filters out more than 90% of light quantity reaching human eye regardless of whether laser is opened or not, causes the field of view of level gauge to be dark and lack of color, greatly influences the observation distance and definition of level gauge. INVENTION CONTENTS

[0007] The main purpose of the utility model is to provide a kind of laser level gauge, to solve the problem of high professional accomplishment of user, dark and lack of color of field of view of level gauge in relevant technology.

[0008] In order to realize the above-mentioned purpose, according to one aspect of the utility model, a kind of laser level gauge is provided, including ocular group and level gauge body, further including: scale plate group, the scale plate group is located at the rear end of level gauge body, the scale plate group includes slot hole group, operation group and hand wheel buckle, the hand wheel switch is rotated forward, the hand wheel buckle is rotated and moves upward, the hand wheel switch is rotated reversely, the hand wheel buckle is rotated and moves downward;

[0009] Hand wheel switch, the hand wheel switch is located below the front of scale plate group;

[0010] The sliding plate group is arranged on the back of the scale plate group, and comprises a filter, a mounting group, a positioning group and a movable group.

[0011] Further, the operation group comprises a scale plate group mounting seat, a lubricating pad, an arc spring sheet and a plurality of adjusting screws.

[0012] Further, the slot group comprises a notch group and a hole group, the notch group comprises a sliding plate positioning pin movable slot, a spring limiting slot and an arc spring sheet mounting slot, the hole group comprises a hand wheel switch mounting hole and an eyepiece group mounting hole, the slot group is arranged on the back of the scale plate group mounting seat, and the arc spring sheet is arranged in the arc spring sheet mounting slot.

[0013] Further, the mounting group comprises a sliding plate, a plurality of positioning pins and a spring positioning column, the spring positioning column is fixedly arranged on the side surface of the sliding plate, the positioning pins all penetrate the sliding plate, and the positioning pins are all in sliding connection with the sliding plate positioning pin movable slot.

[0014] Further, the positioning group comprises a filter mounting hole, a buckle positioning slot and a plurality of positioning pin mounting holes, the filter mounting hole is arranged above the sliding plate, the buckle positioning slot is arranged below the sliding plate, the positioning pin mounting holes all penetrate the sliding plate, and the positioning pins penetrate the positioning pin mounting holes.

[0015] Further, the movable group comprises a power switch and a spring, the spring is arranged in the spring limiting slot, the lower end of the spring is sleeved on the spring positioning column, when the power switch is turned on, the level emits laser, and when the power switch is turned off, the laser disappears.

[0016] Compared with the prior art, the filter is moved to be coaxial with the optical reference axis of the level, the sliding plate drives the power switch at this time, the laser is turned on, the arc spring sheet completely presses the sliding plate, the stability of the filter is ensured, the operator can observe the laser point through the eyepiece group, the filter is separated from the optical system, the power switch is released, the laser is turned off, the sliding plate is separated from the arc spring sheet, the spring extrudes the sliding plate downward, the sliding plate is prevented from shaking, the filter does not block the field of view at this time, the amount of light does not decrease, the observation distance and the definition of the level are ensured, and the use difficulty of the user is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1The utility model is a whole schematic view;

[0018] Figure 2 The utility model is a side view;

[0019] Figure 3 The utility model is a scale group mounting seat and accessory parts installation schematic view;

[0020] Figure 4 The utility model is a scale group mounting seat rear view Figure 1 ;

[0021] Figure 5 The utility model is a scale group mounting seat rear view Figure 2 ;

[0022] Figure 6 The utility model is a whole schematic view scale group mounting seat and accessory parts explosion view;

[0023] Figure 7 The utility model is a structure schematic view sliding plate group schematic view;

[0024] Figure 8 The utility model is a level body rear view.

[0025] Illustration:

[0026] 1, eyepiece group;

[0027] 2, sliding plate group;21, positioning pin;22, optical filter;23, sliding plate;24, power switch;25, optical filter mounting hole;26, buckle positioning groove;27, positioning pin mounting hole;28, spring positioning column;29, spring;

[0028] 3, hand wheel switch;

[0029] 4, scale group;41, scale group mounting seat;42, sliding plate positioning pin movable slot;43, lubricating pad;44, arc spring piece;45, hand wheel buckle;46, hand wheel switch mounting hole;47, spring limiting groove;48, arc spring piece mounting groove;411, eyepiece group mounting hole;412, adjusting screw;413, scale;

[0030] 5, level body;

[0031] 6, front optical system;

[0032] 7, rear optical system. DETAILED DESCRIPTION

[0033] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0034] Please refer to Figures 1 to 8 The embodiment provides a laser level, which comprises an eyepiece group 1 and a level body 5, and further comprises: a scale plate group 4 arranged at the rear end of the level body 5, the scale plate group 4 comprising a slot hole group, an operation group and a hand wheel buckle 45, the hand wheel buckle 45 is moved upward by rotating the hand wheel switch 3 in a forward direction, and the hand wheel buckle 45 is moved downward by rotating the hand wheel switch 3 in a reverse direction.

[0035] The hand wheel switch 3 is arranged below the front surface of the scale plate group 4.

[0036] The sliding plate group 2 is arranged on the back surface of the scale plate group 4, and the sliding plate group 2 comprises a filter 22, a mounting group, a positioning group and a movable group, when the hand wheel buckle 45 is rotated and moved upward, the sliding plate group 2 is pushed to move upward, and the filter 22 is moved upward to be coaxial with the optical reference axis of the level, when the hand wheel buckle 45 is rotated and moved downward, the sliding plate group 2 is pushed to move downward, and the filter 22 is separated from the optical system.

[0037] The operation group comprises a scale plate group mounting seat 41, a lubricating pad 43, an arc spring piece 44 and a plurality of adjusting screws 412, the lubricating pad 43 is arranged between the hand wheel switch 3 and the scale plate group mounting seat 41, the friction between the hand wheel switch 3 and the scale plate group mounting seat 41 is reduced, and the adjusting screws 412 are all arranged outside the eyepiece group mounting hole 411 and are used for adjusting the position of the fixed scale plate 413. The eyepiece group 1 is mounted in the eyepiece group mounting hole 411.

[0038] The slot hole group comprises a slot group and a hole group, the slot group comprises a sliding plate positioning pin movable slot 42, a spring limiting slot 47 and an arc spring piece mounting slot 48, the hole group comprises a hand wheel switch mounting hole 46 and an eyepiece group mounting hole 411, the slot hole group is arranged on the back surface of the scale plate group mounting seat 41, and the arc spring piece 44 is arranged in the arc spring piece mounting slot 48.

[0039] The mounting group comprises a sliding plate 23, a plurality of positioning pins 21 and a spring positioning column 28, the spring positioning column 28 is fixedly arranged on the side surface of the sliding plate 23, the positioning pins 21 all penetrate through the sliding plate 23, the positioning pins 21 are all in sliding connection with the sliding plate positioning pin movable slot 42, the hand wheel switch 3 is rotated, the hand wheel buckle 45 pushes the sliding plate 23 to move upward and downward, and the positioning pins 21 move upward and downward in the sliding plate positioning pin movable slot 42, so as to guide the sliding plate 23.

[0040] The positioning group comprises a filter mounting hole 25, a buckle positioning groove 26 and a plurality of positioning pin mounting holes 27, the filter mounting hole 25 is located above the sliding plate 23, the filter 22 is located in the filter mounting hole 25, the buckle positioning groove 26 is located below the sliding plate 23, and the buckle positioning groove 26 supports the bottom end of the hand wheel buckle 45, and the positioning pin mounting holes 27 all penetrate through the sliding plate 23, and the positioning pin 21 penetrates through the positioning pin mounting holes 27.

[0041] The movable group comprises a power switch 24 and a spring 29, the spring 29 is located in a spring limiting groove 47, the lower end of the spring 29 is sleeved on the spring positioning column 28, when the power switch 24 is opened, the level emits laser, and when the power switch 24 is closed, the laser disappears.

[0042] The eyepiece group 1, the sliding plate group 2, the hand wheel switch 3 and the reticle group 4 form a rear optical system 7, and the level body 5 forms a front optical system 6.

[0043] When the hand wheel switch 3 is rotated, the hand wheel switch 3 drives the hand wheel buckle 45 to rotate, the hand wheel buckle 45 is moved upwards along the reticle group mounting seat 41, the filter 22 is moved upwards to be coaxial with the optical reference axis of the level, the sliding plate 23 drives the power switch 24, at this time, the laser is turned on, the arc spring sheet 44 completely presses the sliding plate 23, the stability of the filter 22 is ensured, and the operator can observe the laser point through the eyepiece group 1; after observation, the hand wheel switch 3 is rotated in the reverse direction, the buckle body 453 is moved downwards along the reticle group mounting seat 41, the filter 22 is separated from the optical system, the sliding plate 23 is released from the power switch 24, the laser is turned off, the sliding plate 23 is separated from the arc spring sheet 44, the spring 29 extrudes the sliding plate 23 downwards, the sliding plate 23 is prevented from shaking, at this time, the filter 22 does not block the field of view, and the amount of light entering is not reduced, the observation distance and the definition of the level are ensured, and the use difficulty of the user is reduced.

[0044] The above merely describes preferred embodiments of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above with preferred embodiments, however, is not used to limit the utility model, any person skilled in the art, within the scope of the technical scheme of the utility model, can make some changes or modifications to the equivalent embodiments of equivalent changes disclosed above, but as long as the changes do not deviate from the technical scheme of the utility model, any modification, equivalent change and modification of the above embodiments according to the technical essence of the utility model, still belong to the scope of the technical scheme of the utility model.

Claims

1. A laser level comprising an eyepiece group (1) and a level body (5), characterized in that, Also include: The reticle group (4) is provided at the rear end of the level body (5), and the reticle group (4) includes a slot group and a hand wheel buckle (45). When the hand wheel switch (3) is rotated forward, the hand wheel buckle (45) is rotated upward, and when the hand wheel switch (3) is rotated in reverse, the hand wheel buckle (45) is rotated downward. The hand wheel switch (3) is provided below the front surface of the reticle group (4). The sliding plate group (2) is provided on the back surface of the reticle group (4), and the sliding plate group (2) includes a filter (22), a mounting group, a positioning group and a movable group. When the hand wheel buckle (45) is rotated upward, the sliding plate group (2) is pushed upward, and the filter (22) is moved upward to be coaxial with the optical reference axis of the level. When the hand wheel buckle (45) is rotated downward, the sliding plate group (2) is pushed downward, and the filter (22) is away from the optical system.

2. A laser level according to claim 1, wherein, The operation group includes a reticle group mounting seat (41), a lubricating pad (43), an arc spring piece (44) and a plurality of adjusting screws (412). The lubricating pad (43) is located between the hand wheel switch (3) and the reticle group mounting seat (41). The adjusting screws (412) are located outside the ocular group mounting hole (411) and adjust the position of the fixed reticle (413).

3. A laser level according to claim 2, wherein, The slot group includes a slot group and a hole group. The slot group includes a sliding plate positioning pin movable slot (42), a spring limiting slot (47) and an arc spring piece mounting slot (48). The hole group includes a hand wheel switch mounting hole (46) and an ocular group mounting hole (411). The slot group is located on the back surface of the reticle group mounting seat (41). The arc spring piece (44) is located in the arc spring piece mounting slot (48).

4. A laser level according to claim 3, wherein, The mounting group includes a sliding plate (23), a plurality of positioning pins (21) and a spring positioning column (28). The spring positioning column (28) is fixedly provided on the side surface of the sliding plate (23). The positioning pins (21) all penetrate the sliding plate (23). The positioning pins (21) are all in sliding connection with the sliding plate positioning pin movable slot (42).

5. A laser level according to claim 4, wherein, The positioning group includes a filter mounting hole (25), a buckle positioning slot (26) and a plurality of positioning pin mounting holes (27). The filter mounting hole (25) is located above the sliding plate (23). The buckle positioning slot (26) is located below the sliding plate (23). The positioning pin mounting holes (27) all penetrate the sliding plate (23). The positioning pins (21) pass through the positioning pin mounting holes (27).

6. A laser level according to claim 5, wherein, The movable group includes a power switch (24) and a spring (29). The spring (29) is located in the spring limiting slot (47), and the lower end of the spring (29) is sleeved on the spring positioning column (28). When the power switch (24) is turned on, the level emits laser. When the power switch (24) is turned off, the laser disappears.

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