CN213984955U

CN213984955U - Metering and calibrating device for length measuring instrument

Info

Publication number: CN213984955U
Application number: CN202120064454.0U
Authority: CN
Inventors: 陈荣福
Original assignee: Guangdong 602 Measurement And Testing Co ltd
Current assignee: Guangdong 602 Measurement And Testing Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-08-17
Anticipated expiration: 2031-01-11

Abstract

The utility model discloses a measuring and calibrating device for a length measuring instrument, which comprises a mounting frame, wherein a measuring scale is fixedly arranged on the inner wall of one side of the mounting frame, and the two ends of the measuring scale are both jointed with the inner walls of the two sides of the mounting frame, the inner walls of the two sides of the mounting frame are fixedly provided with a slide bar, the slide bar is positioned on one side of the measuring scale, a first lantern ring and a second lantern ring are respectively and slidably connected on the slide bar, one side of the first lantern ring is in threaded connection with a first threaded rod, the structure of the utility model is simple, a pressing plate is pushed, the laser measuring instrument is placed on a backing plate, the lens of the laser measuring instrument is aligned with the zero point of the measuring scale, the pressing plate is loosened for fixing, the laser measuring instrument is opened for measuring, the second threaded rod can also be rotated for fine adjustment, and fine adjustment is carried out, accurate measurement is carried out, and the use is convenient.

Description

Metering and calibrating device for length measuring instrument

Technical Field

The utility model relates to a length measuring apparatu calibration technical field especially relates to a be used for length measuring apparatu measurement calibrating device.

Background

The laser ruler is used for measuring the distance within 200 meters generally, and the precision is about 2 mm. This is the laser ranging device which is currently in the widest range of use. In addition to being able to measure distances functionally, the volume of the measurement object can generally be calculated. The laser ruler utilizes the principle of infrared distance measurement or laser distance measurement, and the distance measurement principle can be basically summarized as measuring the time required by light to come and go to a target, and then the distance D is calculated through the light speed and the atmospheric refractive index n. Because of the difficulty in directly measuring time, it is common to determine the phase of a continuous wave, known as a phase-finding rangefinder. It is noted that phase measurement does not measure the phase of the infrared or laser light, but the phase of the signal modulated on the infrared or laser light

The existing length measuring instrument calibration device is used for directly placing the length measuring instrument on a test bench during calibration, and during calibration, the length measuring instrument is easy to displace, so that the calibration precision is influenced, and the calibration cannot be accurately detected during detection and calibration.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a measuring and calibrating device for a length measuring instrument.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a metering and calibrating device for a length measuring instrument comprises a mounting frame, wherein a measuring scale is fixedly arranged on the inner wall of one side of the mounting frame, the two ends of the measuring scale are attached to the inner walls of the two sides of the mounting frame, the inner walls of the two sides of the mounting frame are fixedly provided with a same slide rod, the slide rod is positioned on one side of the measuring scale, a first lantern ring and a second lantern ring are respectively connected to the slide rod in a sliding manner, a first threaded rod is connected to one side of the first lantern ring in a threaded manner, one end of the first threaded rod penetrates through one side of the first lantern ring and is rotatably connected with one side of the second lantern ring, a second threaded rod is connected to one side of the first lantern ring in a threaded manner, one end of the second threaded rod penetrates through the inner ring of the first lantern ring and is attached to the outer wall of the slide rod, a measuring plate is fixedly connected to one side of the second lantern ring, one end of the measuring plate extends to the upper portion of the measuring scale, and one side of the top of the mounting frame is provided with a second groove, the bottom inner wall fixed mounting of second recess has the backing plate, and one side of backing plate extends to the outside of second recess, the top of backing plate is provided with laser measuring instrument, and laser measuring instrument's camera lens is aligned with the zero point of dipperstick, the opposite side fixedly connected with dash receiver of the second lantern ring, and dash receiver be located with the dead ahead of laser measuring instrument camera lens, be provided with on the mounting bracket and be used for carrying out the fixed subassembly fixed to laser measuring instrument.

Preferably, fixed subassembly is including setting up the first recess in the mounting bracket, and first recess is linked together with the second recess, the inner wall sliding connection of first recess has the push rod, and the one end of push rod runs through one side inner wall of first recess and extends to in the second recess, one side inner wall fixed mounting of first recess has the spring, and the one end of spring is laminated with the one end of push rod mutually, the one end fixed mounting of push rod has the clamp plate, the bottom and the backing plate top sliding connection of clamp plate, and one side of clamp plate is laminated with one side of laser measuring instrument mutually, one side inner wall fixed mounting of second recess has the fixed plate, the bottom of fixed plate and the top sliding connection of backing plate, and one side of fixed plate is laminated with one side of laser measuring instrument mutually.

Preferably, the bottom four corners of the mounting rack are fixedly provided with supports, so that the mounting rack can be supported.

Preferably, the one end fixed mounting of push rod has the limiting plate, and one side of limiting plate is laminated with the one end of spring mutually, can prevent the push rod from following the roll-off in the first recess.

Preferably, the pressing plate and one side of the fixing plate are fixedly provided with rubber pads, and the two rubber pads are attached to the laser measuring instrument, so that the laser measuring instrument can be protected.

Preferably, a bearing is fixedly mounted on one side of the second lantern ring, and one end of the first threaded rod penetrates through an inner ring of the bearing and is welded with the inner ring of the bearing, so that sliding friction force is reduced through connection.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, the pressing plate is pushed to move, the pressing plate pushes the push rod to move, the spring is compressed, the laser measuring instrument is placed on the backing plate, the lens of the laser measuring instrument is aligned with the zero point of the measuring scale, the pressing plate is loosened, the spring pushes the push rod to move, and the push rod pushes the pressing plate to fix the laser measuring instrument;

2. the utility model discloses in, open laser measuring instrument, promote first set of area and move the second cover and remove, the second cover ring, second cover ring moves measuring board and dash receiver and removes, thereby whether the length that looks over measuring board point out is unanimous with the length position that laser measuring instrument shows, also can rotate the second threaded rod and fix first cover ring through the screw thread on the first cover ring, rotate first threaded rod again and remove, and drive second cover ring and slowly remove, thereby finely tune through measuring board and dash receiver, carry out accurate measurement.

The utility model discloses simple structure promotes the clamp plate, puts laser measuring instrument at the backing plate, and laser measuring instrument's camera lens will align with the zero point of dipperstick, loosens the clamp plate and fixes, opens laser measuring instrument, measures, and also the second threaded rod that can rotate finely tunes through measuring board and dash receiver, carries out accurate measurement for can fix length measuring instrument, and finely tune, carry out accurate measurement, convenient to use.

Drawings

Fig. 1 is a schematic top view of a measuring and calibrating device for a length measuring instrument according to the present invention;

fig. 2 is a schematic side view of a measuring and calibrating device for a length measuring instrument according to the present invention;

fig. 3 is a schematic structural diagram of a part a of a measuring and calibrating device for a length measuring instrument according to the present invention.

In the figure: 1. a mounting frame; 2. a slide bar; 3. measuring a scale; 4. a first collar; 5. a second collar; 6. a first threaded rod; 7. a second threaded rod; 8. measuring a plate; 9. receiving a plate; 10. a first groove; 11. a limiting plate; 12. a spring; 13. a push rod; 14. a base plate; 15. pressing a plate; 16. a laser measuring instrument; 17. a rubber pad; 18. a fixing plate; 19. a second groove; 20. a support; 21. and a bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Example one

Referring to fig. 1-3, a measuring and calibrating device for a length measuring instrument comprises a mounting frame 1, a measuring ruler 3 is fixedly installed on the inner wall of one side of the mounting frame 1, both ends of the measuring ruler 3 are attached to the inner walls of both sides of the mounting frame 1, the inner walls of both sides of the mounting frame 1 are fixedly installed with a same slide bar 2, the slide bar 2 is located on one side of the measuring ruler 3, a first lantern ring 4 and a second lantern ring 5 are respectively connected to the slide bar 2 in a sliding manner, a first threaded rod 6 is connected to one side of the first lantern ring 4 in a threaded manner, one end of the first threaded rod 6 penetrates through one side of the first lantern ring 4 and is rotatably connected to one side of the second lantern ring 5, a second threaded rod 7 is connected to one side of the first lantern ring 4 in a threaded manner, one end of the second threaded rod 7 penetrates through the first lantern ring 4 and is attached to the outer wall of the slide bar 2, a measuring plate 8 is fixedly connected to one side of the second lantern ring 5, and the one end of measuring board 8 extends to the top of dipperstick 3, top one side of mounting bracket 1 is provided with second recess 19, the bottom inner wall fixed mounting of second recess 19 has backing plate 14, and one side of backing plate 14 extends to the outside of second recess 19, the top of backing plate 14 is provided with laser measuring instrument 16, and laser measuring instrument 16's camera lens is aligned with the zero point of dipperstick 3, the opposite side fixedly connected with dash receiver 9 of second lantern ring 5, and dash receiver 9 is located the dead ahead with laser measuring instrument 16 camera lens, be provided with on the mounting bracket 1 and be used for carrying out the fixed subassembly fixed to laser measuring instrument 16.

Example two

The embodiment is improved on the basis of the first embodiment: the fixing component comprises a first groove 10 arranged in the mounting rack 1, the first groove 10 is communicated with a second groove 19, the inner wall of the first groove 10 is connected with a push rod 13 in a sliding manner, one end of the push rod 13 penetrates through the inner wall of one side of the first groove 10 and extends into the second groove 19, a spring 12 is fixedly arranged on the inner wall of one side of the first groove 10, one end of the spring 12 is attached to one end of the push rod 13, a pressing plate 15 is fixedly arranged at one end of the push rod 13, the bottom of the pressing plate 15 is slidably connected with the top of the backing plate 14, one side of the pressing plate 15 is attached to one side of the laser measuring instrument 16, a fixing plate 18 is fixedly arranged on the inner wall of one side of the second groove 19, the bottom of the fixing plate 18 is slidably connected with the top of the backing plate 14, one side of the fixing plate 18 is attached to one side of the laser measuring instrument 16, supports 20 are fixedly arranged at four corners of the bottom of the mounting rack 1 and can support the mounting rack 1, one end fixed mounting of push rod 13 has limiting plate 11, and one side of limiting plate 11 and the one end of spring 12 laminate mutually, can prevent push rod 13 from following roll-off in first recess 10, the equal fixed mounting in one side of clamp plate 15 and fixed plate 18 has rubber pad 17, and two rubber pads 17 all laminate mutually with laser measuring instrument 16, can protect laser measuring instrument 16, one side fixed mounting of second lantern ring 5 has bearing 21, and the one end of first threaded rod 6 runs through the inner circle of bearing 21 and welds mutually with the inner circle of bearing 21, connect and reduce the friction of sliding force

The working principle is as follows: when the device is used, the rubber pad 17 is pushed, the rubber pad 17 pushes the pressing plate 15 to move, the pressing plate 15 pushes the push rod 13 to move, the push rod 13 pushes the limiting plate 11 to move, the limiting plate 11 compresses the spring 12, the laser measuring instrument 16 is placed on the backing plate 14 and attached to another rubber pad 17, the lens of the laser measuring instrument 16 is aligned with the zero point of the measuring scale 3, the rubber pad 17 is loosened, the spring 12 rebounds, the spring 12 pushes the limiting plate 11 to move, the limiting plate 11 pushes the push rod 13 to move, the push rod 13 pushes the pressing plate 15 to move, the pressing plate 15 pushes the rubber pad 17 to be attached to the laser measuring instrument 16, the laser measuring instrument 16 is fixed, the laser measuring instrument 16 is opened to test, the laser of the laser measuring instrument 16 irradiates on the receiving plate 9 to push the first sleeve ring 4 to move, and the first sleeve ring 4 drives the first threaded rod 6 to move, first threaded rod 6 drives second lantern ring 5 and removes, second lantern ring 5 drives and measures board 8 and dash receiver 9 and remove, thereby length degree position through measuring board 8 points out, it is unanimous whether to look over the length position that laser measuring instrument 16 shows, also can rotate second threaded rod 7, second threaded rod 7 removes through the screw thread on the first lantern ring 4, the one end of second threaded rod 7 can laminate with slide bar 2 mutually, and fix first lantern ring 4, rotating first threaded rod 6, first threaded rod 6 removes slowly through the screw thread on the first lantern ring 4, first threaded rod 6 also can drive second lantern ring 5 and remove slowly, second lantern ring 5 drives and measures board 8 and dash receiver 9 and slowly removes, thereby pinpoint the length position of dipperstick 3, thereby finely tune, carry out accurate measurement.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a be used for length measuring apparatu measurement calibrating device, includes mounting bracket (1), its characterized in that, one side inner wall fixed mounting of mounting bracket (1) has dipperstick (3), and the both ends of dipperstick (3) all laminate mutually with the both sides inner wall of mounting bracket (1), the both sides inner wall fixed mounting of mounting bracket (1) has same slide bar (2), and slide bar (2) are located one side of dipperstick (3), sliding connection has first lantern ring (4) and second lantern ring (5) respectively on slide bar (2), one side threaded connection of first lantern ring (4) has first threaded rod (6), and the one end of first threaded rod (6) runs through one side of first lantern ring (4) and rotates with one side of second lantern ring (5) to be connected, one side threaded connection of first lantern ring (4) has second threaded rod (7), and the one end of second threaded rod (7) runs through the inner circle of first lantern ring (4) and with the outer wall looks of slide bar (2) mutually The laminating, board (8) is measured to one side fixedly connected with of second lantern ring (5), and the one end of measuring board (8) extends to the top of dipperstick (3), top one side of mounting bracket (1) is provided with second recess (19), the bottom inner wall fixed mounting of second recess (19) has backing plate (14), and one side of backing plate (14) extends to the outside of second recess (19), the top of backing plate (14) is provided with laser measuring instrument (16), and the camera lens of laser measuring instrument (16) is aligned with the zero point of dipperstick (3), opposite side fixedly connected with receiver plate (9) of second lantern ring (5), and receiver plate (9) are located with the dead ahead of laser measuring instrument (16) camera lens, be provided with on mounting bracket (1) and be used for carrying out the fixed subassembly to laser measuring instrument (16).

2. The metering and calibrating device for the length measuring instrument is characterized in that the fixing component comprises a first groove (10) arranged in the mounting frame (1), the first groove (10) is communicated with a second groove (19), a push rod (13) is connected to the inner wall of the first groove (10) in a sliding manner, one end of the push rod (13) penetrates through the inner wall of one side of the first groove (10) and extends into the second groove (19), a spring (12) is fixedly arranged on the inner wall of one side of the first groove (10), one end of the spring (12) is attached to one end of the push rod (13), a pressing plate (15) is fixedly arranged at one end of the push rod (13), the bottom of the pressing plate (15) is connected with the top of the backing plate (14) in a sliding manner, one side of the pressing plate (15) is attached to one side of the laser measuring instrument (16), a fixing plate (18) is fixedly arranged on the inner wall of one side of the second groove (19), the bottom of the fixed plate (18) is connected with the top of the backing plate (14) in a sliding mode, and one side of the fixed plate (18) is attached to one side of the laser measuring instrument (16).

3. The measuring and calibrating device for the length measuring instrument is characterized in that the four corners of the bottom of the mounting frame (1) are fixedly provided with the brackets (20).

4. The device for measuring and calibrating the length measuring instrument is characterized in that a limit plate (11) is fixedly arranged at one end of the push rod (13), and one side of the limit plate (11) is attached to one end of the spring (12).

5. The device for measuring and calibrating the length measuring instrument is characterized in that a rubber gasket (17) is fixedly arranged on one side of each of the pressing plate (15) and the fixing plate (18), and the two rubber gaskets (17) are attached to the laser measuring instrument (16).

6. A metering and calibrating device for a length measuring instrument according to claim 1, characterized in that a bearing (21) is fixedly arranged on one side of the second lantern ring (5), and one end of the first threaded rod (6) penetrates through the inner ring of the bearing (21) and is welded with the inner ring of the bearing (21).