CN214795170U

CN214795170U - Automatic calibration auxiliary device for handheld digital multimeter

Info

Publication number: CN214795170U
Application number: CN202120544183.9U
Authority: CN
Inventors: 黎星云; 黎永涛; 张伟
Original assignee: GUANGDONG INSTITUTE OF METROLOGY DONGGUAN BRANCH
Current assignee: GUANGDONG INSTITUTE OF METROLOGY DONGGUAN BRANCH
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-11-19
Anticipated expiration: 2031-03-17

Abstract

The utility model relates to an automatic calibration auxiliary device for a handheld digital multimeter, which is provided with a base, a first clamp, a second clamp and a power part, wherein the first clamp is assembled on the base and is provided with a first self-adaptive clamping opening; the second clamp is assembled on the base and is guided to be close to or far away from the first clamp through the guide structure, and a second self-adaptive clamping opening is formed in the second clamp; the second self-adaptive clamping opening and the first self-adaptive clamping opening are matched to clamp the digital multimeter; the power piece provides power for the second clamp to approach the first clamp and obtains clamping force. The utility model discloses a design out a brand-new hand-held type digit multimeter automatic calibration auxiliary device, its unique design can make it be applicable to most hand-held type digit multimeters on the market, compares in current with the function auxiliary device, has advantages such as extensive applicability, commonality are strong and use convenient.

Description

Automatic calibration auxiliary device for handheld digital multimeter

Technical Field

The utility model relates to a measurement calibration technical field especially relates to the examination calibration of hand-held type digital multimeter.

Background

At present, the verification and calibration of the domestic hand-held digital multimeter still mainly adopts a manual calibration mode, and the manual operation speed is low and the efficiency is low. The utility model discloses a digital multimeter calibration method, the utility model is characterized in that the utility model is a universal calibration method, the utility model is simple, the calibration efficiency is high, the utility model is simple, the manual calibration technology is convenient, the manual calibration technology is used for replacing manual calibration, the models of the digital multimeter to be calibrated by a metering mechanism are various, the structure is different, the universality and the use convenience of the conventional handheld digital multimeter automatic calibration auxiliary device are poor, the practical requirements of the calibration of the digital multimeters with various models in daily life cannot be met, and how to design and develop the auxiliary device which has good universality and is convenient to use is a problem to be solved urgently in the automatic calibration application of the current handheld digital multimeters.

Disclosure of Invention

The utility model aims at providing a hand-held type digit multimeter automatic calibration auxiliary device solves the prior art problem well, and the commonality is good and convenient to use.

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

the handheld digital multimeter automatic calibration auxiliary device comprises:

a base seat is arranged on the base seat,

the first clamp is assembled on the base and provided with a first self-adaptive clamping opening;

the second clamp is assembled on the base and is guided to be close to or far away from the first clamp through the guide structure, and a second self-adaptive clamping opening is formed in the second clamp; the second self-adaptive clamping opening and the first self-adaptive clamping opening are matched to clamp the digital multimeter;

and the power part provides power for the second clamp to approach the first clamp and obtains clamping force.

The scheme is further that the first adaptive clamping opening and the second adaptive clamping opening are V-shaped, and the openings of the first adaptive clamping opening and the second adaptive clamping opening are oppositely arranged; the power member is an elastomer coupled between the first clamp and the second clamp.

The scheme is that the guide structure is further composed of a linear guide groove and a guide block, and the guide block is connected with the second clamp and embedded in the linear guide groove.

The technical scheme is that the base is further provided with a camera, the camera is positioned above the digital multimeter clamped by the first self-adaptive clamping opening and the second self-adaptive clamping opening, the camera is supported by a supporting system for guiding the camera to align to a screen of the digital multimeter right below, and the supporting system is assembled on the base.

In the above solution, the linear guide groove is formed in the bottom plate, the bottom plate is fixedly connected to the first fixture, the guide block is in a strip shape, the guide block and the bottom plate are spliced to support the bottom surface of the digital multimeter, and the first fixture and the second fixture clamp two ends of the digital multimeter.

The supporting system comprises a vertical plate, a pair of cantilevers and a support transversely arranged on the cantilevers and capable of moving along the cantilevers, and the camera is mounted on the support.

According to the scheme, the rechargeable LED light source is arranged on the vertical plate.

The utility model discloses a design out a brand-new hand-held type digit multimeter automatic calibration auxiliary device, its unique design can make it be applicable to most hand-held type digit multimeters on the market, compares in current with the function auxiliary device, has advantages such as extensive applicability, commonality are strong and use convenient.

The method has the advantages that: wide applicability

Digital multimeter on the market generally is class cuboid structure, the utility model discloses a design self-adaptation with first anchor clamps and second anchor clamps respectively and press from both sides a mouthful structure, even the size of digital multimeter respectively has the difference, nevertheless can all directly press from both sides between first anchor clamps and second anchor clamps.

The method has the advantages that: convenient installation of digital multi-purpose meter

The first clamp and the second clamp are connected by a power part, the second clamp is pulled by hand in the direction away from the first clamp before the digital multi-purpose meter is placed, the digital multi-purpose meter can be placed between the first clamp and the second clamp, the second clamp is released by hand, and the digital multi-purpose meter is tightly clamped between the first clamp and the second clamp under the action of the power part; meanwhile, the first self-adaptive clamping opening and the second self-adaptive clamping opening can automatically align the digital multimeter so that the digital multimeter is not inclined.

The method has the advantages that: convenient adjustment of camera view

The camera is located the top of the digital multimeter that first self-adaptation pressed from both sides mouthful and the centre gripping of second self-adaptation, and the camera supports through the braced system of the screen of the digital multimeter that guides the camera alignment under, and the support of establishing on the cantilever transversely can follow the cantilever and remove to in the use convenient to adjust the camera, make its view aim at the digital multimeter screen under.

Description of the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a partially exploded view of the embodiment of FIG. 1;

fig. 3 is a schematic diagram of the embodiment of fig. 1 in use.

The specific implementation mode is as follows:

the conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-3, it is shown that the utility model discloses preferred embodiment structure schematic diagram, the utility model relates to a handheld digital multimeter automatic calibration auxiliary device, it has base 1, first anchor clamps 2, second anchor clamps 3, power spare 4 and camera 6.

The base 1 is horizontally arranged and provides a horizontal assembly space. The first clamp 2 is assembled on the base 1, and the first clamp 2 has a first adaptive clamping opening 21. The second clamp 3 is assembled on the base 1 and is guided to be close to or far away from the first clamp 2 through a guide structure, and the second clamp 3 is provided with a second self-adaptive clamp opening 31; the second adaptive clamping opening 31 and the first adaptive clamping opening 21 cooperate to clamp the digital multimeter 5. The power member 4 provides power for the second clamp 3 to approach the first clamp 2 and obtains clamping force, so that the digital multimeter 5 is tightly clamped between the first clamp 2 and the second clamp 3. Meanwhile, in this embodiment, the first adaptive clamping opening 21 and the second adaptive clamping opening 31 are V-shaped, and the openings of the first adaptive clamping opening 21 and the second adaptive clamping opening 31 are arranged oppositely, so that the digital multimeter 5 can be guided by using the V-shaped surface to achieve automatic alignment, and the digital multimeter 5 is not inclined. The power member 4 is an elastic body connected between the first clamp 2 and the second clamp 3, preferably a shrinking rubber band, in this embodiment, the power member 4 is arranged in pairs between the first clamp 2 and the second clamp 3, and two ends of the power member 4 are respectively fixedly connected to corresponding V-shaped walls of the first adaptive clamping opening 21 and the second adaptive clamping opening 31, so that a stable clamping force is obtained, and the second clamp 3 is ensured to be stably close to the first clamp 2 and clamp the digital multimeter 5.

Referring to fig. 1 to 3, in the embodiment, the guide structure is composed of a linear guide groove 71 and a guide block 72, and the guide block 72 is connected to the second fixture 3 and embedded in the linear guide groove 71, so that the structure is simple, the manufacturing is convenient, and the guidance performance is good. Further, the linear guide groove 71 is configured on the bottom plate 7, the bottom plate 7 is fixedly connected with the first clamp 2, and when the linear guide groove is assembled, the bottom plate 7 is flatly fixed on the base 1, and the first clamp 2 is fixedly arranged on the base 1 along the belt. The guide block 72 is long strip-shaped, the guide block 72 and the bottom plate 7 are spliced to support the bottom surface of the digital multimeter 5, the first clamp 2 and the second clamp 3 clamp two ends of the digital multimeter 5, the V-shaped first adaptive clamping opening 21 and the V-shaped second adaptive clamping opening 31 are used for clamping and guiding the digital multimeter 5, the clamping is more stable, and the digital multimeter 5 is placed flatly for metering.

Referring to fig. 1 and 2, in the embodiment, the camera 6 is located above the digital multimeter 5 held by the first adaptive clamping opening 21 and the second adaptive clamping opening 31, and the camera 6 is supported by the support system guiding the camera 6 to be aligned with the screen of the digital multimeter directly below, so that the camera can be conveniently adjusted during use to align the view of the camera with the screen of the digital multimeter directly below. The supporting system is assembled on the base 1, and further comprises a vertical plate 81, a pair of cantilevers 82 and a bracket 83 transversely arranged on the cantilevers 82 and capable of moving along the cantilevers, and the camera 6 is installed on the bracket 83. In this embodiment, the vertical plate 81 is disposed at one side end of the base 1 and close to the first fixture 2, and the vertical plate 81 and the base 1 can be integrally manufactured or combined and connected. In order to further improve the use effect, the rechargeable LED light source 9 is further disposed on the vertical plate 81 to provide light for the camera 6 to capture images. In this embodiment, the cantilever 82 extends outwards from the vertical plate 81, and the two ends spanned by the bracket 83 are provided with the clamping structures 831, so as to prevent the bracket 81 from moving left and right, and simultaneously allow the bracket 83 to slide back and forth along the length direction of the cantilever 82, so that the camera can be aligned to the digital multimeter screen right below in the using process. In this embodiment, the bracket 83 is provided with an assembly positioning hole, which facilitates the installation of the camera 6, and has a simple structure and is convenient to assemble and use.

The utility model discloses in, first anchor clamps 2 relatively fixed is on base 1, and second anchor clamps 3 have relative mobility, realizes from this that second anchor clamps 3 are close to or keep away from first anchor clamps 2 through the guide structure guide on base 1, obtains the centre gripping efficiency. The power part 4 is an elastic body connected between the first clamp 2 and the second clamp 3, so that the second clamp 3 can be conveniently pulled open manually, the digital multimeter 5 can be assembled and disassembled, and meanwhile, the power part 4 also gives clamping force to the second clamp 3. The structure has self-adaptive capacity, so that the structure can be universally applied to digital multimeters with different sizes and specifications, and the digital multimeters are fixed to prevent the digital multimeters from loosening.

Through using, the utility model is suitable for a most of hand-held type digital multimeter verification calibration on the market has following advantage:

the method has the advantages that: wide applicability

The method has the advantages that: convenient adjustment of camera view

Although the preferred embodiments of the present invention have been described in connection with the accompanying drawings, the present invention should not be limited to the exact construction and operation as described and illustrated, and many equivalent modifications and variations of the above-described embodiments may be made by logical analysis, reasoning or limited experimentation by those skilled in the art without departing from the spirit and scope of the present invention, which should fall within the scope of the claims.

Claims

1. The automatic calibration auxiliary device of the hand-held digital multimeter is characterized by comprising:

a base (1) is arranged on the base,

the first clamp (2), the first clamp (2) is assembled on the base (1), and the first clamp (2) is provided with a first self-adaptive clamping opening (21);

the second clamp (3), the second clamp (3) is assembled on the base (1) and is guided to approach or depart from the first clamp (2) through a guide structure, and a second self-adaptive clamping opening (31) is formed in the second clamp (3); the second self-adaptive clamping opening (31) and the first self-adaptive clamping opening (21) are matched to clamp the digital multimeter (5);

and the power piece (4) provides power for the second clamp (3) to approach the first clamp (2) and obtains clamping force.

2. The automatic calibration auxiliary device for handheld digital multimeter according to claim 1, wherein the first adaptive jaw (21) and the second adaptive jaw (31) are V-shaped, and the openings of the first adaptive jaw (21) and the second adaptive jaw (31) are oppositely arranged; the power part (4) is an elastic body connected between the first clamp (2) and the second clamp (3).

3. The automatic calibration auxiliary device for handheld digital multimeters according to claim 1, wherein the guide structure is composed of a linear guide slot (71) and a guide block (72), the guide block (72) being connected to the second fixture (3) and being embedded in the linear guide slot (71).

4. The automatic calibration auxiliary device for the handheld digital multimeter according to claim 1, wherein a camera (6) is further disposed on the base (1), the camera (6) is located above the digital multimeter (5) clamped by the first adaptive clamping opening (21) and the second adaptive clamping opening (31), and the camera (6) is supported by a support system guiding the camera (6) to be aligned with a screen of the digital multimeter directly below, and the support system is assembled on the base (1).

5. The automatic calibration auxiliary device for handheld digital multimeters according to claim 3, wherein said linear guide groove (71) is formed on a bottom plate (7), said bottom plate (7) is fixedly connected to the first fixture (2), the guide block (72) is elongated, the guide block (72) is combined with the bottom plate (7) to support the bottom surface of the digital multimeter (5), and the first fixture (2) and the second fixture (3) clamp both ends of the digital multimeter (5).

6. The automatic calibration auxiliary device for the handheld digital multimeter according to claim 4, wherein the support system comprises a vertical plate (81), a pair of cantilevers (82), and a bracket (83) transversely disposed on the cantilevers (82) and movable along the cantilevers, and the camera (6) is mounted on the bracket (83).

7. The automatic calibration auxiliary device for handheld digital multimeter according to claim 6, wherein a rechargeable LED light source (9) is disposed on the vertical plate (81).