Auxiliary calibration device for multimeter

Abstract

The utility model discloses a multimeter auxiliary calibration device, comprising a calibration device body and a calibration probe, the top of the calibration device body is provided with the calibration probe, the outside of the calibration probe is provided with a magnetic attraction ring, the magnetic attraction ring adsorbs four groups of metal sleeves through magnetic force, and the magnetic attraction ring is connected with the metal sleeves. A connecting plate is arranged on the side face of the metal sleeve, and the side face of the connecting plate is connected with a top plate. According to the auxiliary calibration device for the multimeter, a magnetic suction ring and a metal sleeve are mounted outside a calibration probe, and a top plate and a connecting plate are mounted on the side surface of the metal sleeve, so that after the calibration probe is not used, a worker takes out the metal sleeve and sleeves the calibration probe; and meanwhile, the magnetic sleeve at the bottom of the top plate is sleeved outside the metal rod, so that the dustproof structure can be mounted outside the calibration probe, and the dustproof structure is provided when the calibration probe is not used.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of multimeter calibration, especially relates to multimeter auxiliary calibration device. BACKGROUND

[0002] The multimeter auxiliary calibration device is also called a multimeter calibration instrument or a multifunctional standard source, and is a precision instrument for calibrating and verifying digital multimeters, analog multimeters and other electrical measuring instruments. The core function of the multimeter auxiliary calibration device is to output high-precision and high-stability standard electrical signals. The multimeter auxiliary calibration device provides high-precision and adjustable standard electrical signals, solves the problems of low efficiency and large error of traditional manual calibration, and is widely used in laboratories, industries and measurement fields.

[0003] The multimeter auxiliary calibration device on the market has the following problems in application:

[0004] 1. When the traditional multimeter auxiliary calibration device is idle, the device body is usually detected by the calibration probe on the top. Once the calibration structure is not needed, it is directly exposed to the outside. Since dust exists in the air, the dust is easily attached to the inside of the calibration structure, and the subsequent workers need to clean the inside with the cleaning structure. Therefore, the dustproof structure is not provided when in use.

[0005] 2. When most multimeter auxiliary calibration devices are placed, the calibration device body is usually directly placed on a plane. Since no stable placing structure is installed, the calibration device body is easily turned on one side once it is subjected to external impact. Therefore, the stability is poor when the calibration device is placed. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a multimeter auxiliary calibration device to solve the technical problems in the background art.

[0007] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: the multimeter auxiliary calibration device comprises a calibration device body and a calibration probe. The top of the calibration device body is provided with the calibration probe. The outside of the calibration probe is provided with a magnetic attraction ring. The magnetic attraction ring is magnetically attracted to a metal sleeve. The number of the metal sleeves is four. The side surface of the metal sleeve is provided with a connecting plate. The side surface of the connecting plate is connected to a top plate. The top of the top plate is provided with a handle. The inside of the top plate is provided with a magnetic sleeve. The top of the calibration device body is provided with a metal rod. The magnetic sleeve is magnetically attracted to the metal rod.

[0008] Preferably, the bottom of the calibration device body is slidingly connected to a pull-out frame. The inside of the pull-out frame is provided with a groove. The inside of the groove is provided with a cross. The inside of the cross is threadedly connected to a threaded rod. The bottom of the threaded rod is connected to a suction cup. The suction cups are symmetrically distributed.

[0009] Preferably, a threaded groove is formed on the top of the calibration device body, and the inside of the threaded groove is threadedly connected with a threaded block.

[0010] Preferably, an adapter block is arranged on the top of the threaded block, and the top of the adapter block is connected with a metal rod.

[0011] Preferably, a sliding block is arranged on the side of the pull-out frame, and a sliding groove is formed on the bottom of the calibration device body, and the sliding block is embedded in the inside of the sliding groove.

[0012] Preferably, a control switch is arranged on the outside of the calibration device body, and a charging port is arranged on the back of the calibration device body.

[0013] The multi-meter auxiliary calibration device has the following advantages:

[0014] 1. The multi-meter auxiliary calibration device, by arranging a magnetic attraction ring and a metal sleeve on the outside of the calibration probe, arranging a top plate and an adapter plate on the side of the metal sleeve, and embedding a metal rod in the inside of the magnetic attraction sleeve, facilitates dustproof work on the calibration probe, and after the calibration probe is not needed to be used, the staff takes out the metal sleeve, and sleeves the metal sleeve on the outside of the calibration probe, and simultaneously sleeves the magnetic attraction sleeve on the bottom of the top plate on the outside of the metal rod, so that the dustproof structure can be arranged on the outside of the calibration probe, and has a dustproof structure when idle.

[0015] 2. The multi-meter auxiliary calibration device, by slidingly connecting a pull-out frame on the bottom of the calibration device body, and arranging a cross frame in the inside of the pull-out frame, and arranging a suction cup in the inside of the upper support, facilitates placing the calibration device body on a plane, and the staff first pulls out the pull-out frame to the outside, twists the suction cup in the inside of the cross frame, adjusts the suction cup to a uniform height, and presses the suction cup, so that the calibration device body is more stable when placed. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0018] Figure 2 It is a schematic diagram of the metal rod structure of the present application;

[0019] Figure 3 It is a schematic diagram of the metal sleeve structure of the present application;

[0020] Figure 4 It is the threaded rod structure schematic view of the utility model.

[0021] Figure 5 It is the sliding slot structure schematic view of the utility model.

[0022] Marked explanation in the drawing: 1, calibration equipment body;2, control switch;3, charging port;4, calibration probe;5, thread groove;6, threaded block;7, link block;8, metal rod;9, magnetic attraction sleeve;10, top plate;11, link plate;12, handle;13, magnetic attraction ring;14, metal sleeve;15, sliding block;16, sliding slot;17, pull-out frame;18, recess;19, cross;20, threaded rod;21, suction cup. DETAILED DESCRIPTION

[0023] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can realize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0024] In the description of the embodiments of the utility model, it is understood that the orientation or positional relationship indicated by the terms "length", "vertical", "horizontal", "top", "bottom" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the utility model.

[0025] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0026] In the embodiments of the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated;It can be mechanical connection, or electrical connection, or communication;It can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0027] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0028] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of the multimeter auxiliary calibration device of this utility model.

[0029] like Figures 1-5 As shown, the multimeter auxiliary calibration device of this utility model includes a calibration device body 1 and a calibration probe 4. The calibration probe 4 is provided on the top of the calibration device body 1. A magnetic ring 13 is provided on the outside of the calibration probe 4. The magnetic ring 13 magnetically attracts a metal sleeve 14. There are four sets of metal sleeves 14. A connecting plate 11 is provided on the side of the metal sleeve 14. Due to the installation of the top plate 10, it is convenient to connect the connecting plate 11 and the magnetic sleeve 9. The side of the connecting plate 11 is connected to the top plate 10. A handle 12 is provided on the top of the top plate 10. A magnetic sleeve 9 is provided on the side, and a metal rod 8 is provided on the top of the calibration device body 1. The magnetic sleeve 9 magnetically attracts the metal rod 8. By installing a magnetic ring 13 and a metal sleeve 14 on the outside of the calibration probe 4, and installing a top plate 10 and a connecting plate 11 on the side of the metal sleeve 14, and embedding the metal rod 8 inside the magnetic sleeve 9, the operator can take out the metal sleeve 14 and put it on the outside of the calibration probe 4. At the same time, the magnetic sleeve 9 at the bottom of the top plate 10 is put on the outside of the metal rod 8. In this way, the dustproof structure can be installed on the outside of the calibration probe 4.

[0030] The bottom of the calibration device body 1 is slidably connected to a pull-out bracket 17. A groove 18 is opened on the inner side of the pull-out bracket 17. A cross 19 is provided inside the groove 18. A threaded rod 20 is threadedly connected to the inner side of the cross 19. A suction cup 21 is connected to the bottom of the threaded rod 20. The suction cups 21 are symmetrically distributed. By sliding the pull-out bracket 17 at the bottom of the calibration device body 1 and providing a cross 19 on the inner side of the pull-out bracket 17, and installing the suction cups 21 inside the upper bracket, the operator first pulls the pull-out bracket 17 outward, then twists the suction cups 21 on the inner side of the cross 19 to adjust the suction cups 21 to a uniform height. Then, by pressing the suction cups 21, the calibration device body 1 can be stably placed on a flat surface.

[0031] The top of the calibration equipment body 1 is provided with a threaded groove 5, and the threaded groove 5 is internally threaded connected with a threaded block 6. Since the threaded groove 5 is provided, the metal rod 8 structure is conveniently installed on the top of the calibration equipment body 1.

[0032] The top of the threaded block 6 is provided with a connecting block 7, and the top of the connecting block 7 is connected with the metal rod 8. Since the connecting block 7 is provided, the threaded block 6 and the metal rod 8 are conveniently fixedly connected.

[0033] The side of the pull-out frame 17 is provided with a sliding block 15, and the bottom of the calibration equipment body 1 is provided with a sliding groove 16. The sliding block 15 is embedded in the inside of the sliding groove 16. Through the provision of the sliding block 15 and the sliding groove 16, the pull-out frame 17 is conveniently quickly moved inside the calibration equipment body 1.

[0034] The control switch 2 is installed outside the calibration equipment body 1, and the back of the calibration equipment body 1 is provided with a charging port 3. Since the charging port 3 is provided, the calibration equipment body 1 is conveniently charged for use.

[0035] The working principle of the multi-meter auxiliary calibration device is as follows: when the device is applied, firstly, the device body needs to be moved to a suitable position, and then placed on the desktop. In order to stably place the calibration device body 1 on the desktop, a stable placing structure is installed. A sliding groove 16 is formed in the bottom of the calibration device body 1, a sliding block 15 is inlaid in the sliding groove 16, a pull-out frame 17 is slidably connected to the side of the sliding block 15, a cross frame 19 is arranged on the inner side of the pull-out frame 17, a suction cup 21 is arranged in the inner side of the upper support, the pull-out frame 17 is pulled outward, the threaded rod 20 in the inner side of the cross frame 19 is screwed, the bottom of the threaded rod 20 is connected with the suction cup 21, the suction cup 21 is adjusted to a uniform height, and then the suction cup 21 is pressed, so that the calibration device body 1 is more stable during placement. In order to conveniently provide power for the calibration device body 1, the charging device is taken out, the charging port 3 is connected with the charging device, and then the calibration device body 1 is charged. When the calibration is completed, the charging device is taken out. When the multi-meter needs to be detected, the multi-meter is installed on the inner side of the calibration probe 4, the control switch 2 is started, the value is adjusted, and whether the multi-meter is normal can be observed. The normal multi-meter is placed on the right side, and the multi-meter that cannot be used is placed on the left side, so that the subsequent classification of the working personnel is facilitated. After the multi-meter is completely detected, in order to avoid that dust covers the inner side of the calibration probe 4, the magnetic attraction ring 13 is arranged outside the calibration probe 4, the metal sleeve 14 is arranged on the top of the magnetic attraction ring 13, the top plate 10 is connected with the metal sleeve 14 through the connecting plate 11, the magnetic attraction sleeve 9 is arranged in the inner side of the top plate 10, the metal rod 8 is inlaid in the inner side of the magnetic attraction sleeve 9, the bottom of the metal rod 8 is connected with the threaded block 6 through the connecting block 7, and then the metal rod 8 is taken out. The threaded block 6 is screwed with the threaded groove 5, so that the metal rod 8 is arranged on the top of the calibration device body 1. Then the magnetic attraction sleeve 9 is taken out and connected with the metal rod 8 through magnetic attraction adsorption, and the metal sleeve 14 is connected with the magnetic attraction ring 13. In this way, the dustproof structure can be arranged outside the calibration probe 4. Finally, when the calibration device body 1 needs to be used again, the dustproof structure is disassembled by holding the handle 12 on the top of the top plate 10.

[0036] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A multi-meter auxiliary calibration device, comprising a calibration device body (1) and a calibration probe (4), the top of the calibration device body (1) is provided with the calibration probe (4), characterized in that: The outer part of the calibration probe (4) is provided with a magnetic attraction ring (13), the magnetic attraction ring (13) is adsorbed by magnetic force, the metal sleeve (14) is provided with four groups, the side of the metal sleeve (14) is provided with an adapter plate (11), the side of the adapter plate (11) is connected with a top plate (10), the top of the top plate (10) is provided with a handle (12), the inner side of the top plate (10) is provided with a magnetic attraction sleeve (9), the top of the calibration equipment body (1) is provided with a metal rod (8), and the magnetic attraction sleeve (9) is adsorbed by magnetic force.

2. The multimeter auxiliary calibration device of claim 1, wherein: The bottom of the calibration equipment body (1) is slidably connected with a pull frame (17), the inner side of the pull frame (17) is provided with a groove (18), the inner part of the groove (18) is provided with a cross frame (19), the inner side of the cross frame (19) is threadedly connected with a threaded rod (20), the bottom of the threaded rod (20) is connected with a suction disc (21), and the suction disc (21) is symmetrically distributed.

3. The multimeter auxiliary calibration device of claim 1, wherein: The top of the calibration equipment body (1) is provided with a threaded groove (5), and the inner part of the threaded groove (5) is threadedly connected with a threaded block (6).

4. The multimeter auxiliary calibration device of claim 3, wherein: The top of the threaded block (6) is provided with an adapter block (7), and the adapter block (7) is connected with a metal rod (8).

5. The multimeter auxiliary calibration device of claim 2, wherein: The side of the pull frame (17) is provided with a sliding block (15), the bottom of the calibration equipment body (1) is provided with a sliding groove (16), and the sliding block (15) is embedded in the inner part of the sliding groove (16).

6. The multimeter auxiliary calibration device of claim 1, wherein: The outer part of the calibration equipment body (1) is provided with a control switch (2), and the back of the calibration equipment body (1) is provided with a charging port (3).

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