CN220961824U

CN220961824U - DC voltmeter calibrating device

Info

Publication number: CN220961824U
Application number: CN202322542700.0U
Authority: CN
Inventors: 张乾月; 李轩
Original assignee: Yichang Guofang Measurement And Testing Co ltd
Current assignee: Yichang Guofang Measurement And Testing Co ltd
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2024-05-14
Anticipated expiration: 2033-09-19

Abstract

The utility model relates to the technical field of calibration devices and discloses a direct-current voltmeter calibration device which comprises a box body, wherein two groups of second supports are fixedly arranged on the outer surface of one side of the box body in pairs, a sector gear is rotatably arranged between one group of the second supports, a connecting rod is fixedly arranged on the outer surface of the sector gear, and a cover plate is fixedly arranged at one end, far away from the sector gear, of the connecting rod. According to the device, when the cover plate is opened again, the cover plate can lift the direct-current voltmeter body from the inside of the box body through the driving mechanism, so that the hand movement limitation of an experimenter during the calibration of the direct-current voltmeter body is avoided, and the efficiency of calibrating the direct-current voltmeter body is improved.

Description

DC voltmeter calibrating device

Technical Field

The utility model relates to the technical field of calibration devices, in particular to a direct-current voltmeter calibration device.

Background

The DC ammeter is an instrument for measuring the current intensity in a DC circuit, when larger current is required to be measured, a low resistance with a certain resistance value can be connected in parallel at two input ends so as to expand the range, and the scale zero point of the DC ammeter is generally arranged at the leftmost end of a dial.

The existing direct-current voltmeter calibration device (publication number: CN 218272672U) has at least the following disadvantages:

When the utility model is used, an operator opens the protective cover manually and then calibrate the numerical value of the direct-current voltmeter, and as the operator needs to stretch hands into the inside of the direct-current voltmeter box to operate when calibrating the direct-current voltmeter, the movable space in the box is limited, so that the hand of the operator is limited in the activity when calibrating the inside of the box, and the calibration efficiency is influenced.

Disclosure of utility model

The utility model aims to solve the defects in the prior art and provides a direct-current voltmeter calibration device.

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

The utility model provides a direct current voltmeter calibrating device, includes the box, two a set of fixed mounting of one side surface of box have two sets of second supports, a set of two rotate between the second support and install sector gear, sector gear's surface fixed mounting has the connecting rod, the one end fixed mounting that sector gear was kept away from to the connecting rod has the apron, two T type spouts have been seted up to the surface symmetry of box one side, two equal slidable mounting of inner wall of T type spout has T type slide rail, two equal fixed mounting of outer surface that T type slide rail is close to box one side has the dead lever, two fixed mounting has direct current voltmeter body between the dead lever, two spacing grooves have been seted up to the inner wall symmetry of box relative T type slide rail one side, the other end of dead lever and the inner wall slidable mounting of spacing groove, be equipped with fixed subassembly between box and the apron, be equipped with the actuating mechanism who drives direct current voltmeter body and go up and down between apron and the direct current voltmeter body.

As a further scheme of the utility model, the fixing component comprises a clamping block fixedly arranged on the outer surface of one side, far away from the sector gear, of the cover plate, two first supports are symmetrically and fixedly arranged on the outer surface of one side, close to the clamping block, of the box body, a lock catch is rotatably arranged between the two first supports, the outer surface of the lock catch is provided with a through hole in a penetrating mode, and the through hole is matched with the clamping block.

As a further scheme of the utility model, the driving mechanism comprises a rack fixedly arranged on the outer surface of one side of the T-shaped sliding rail close to the sector gear, and the rack is meshed with the sector gear.

As a further scheme of the utility model, the outer surface of the cover plate is fixedly provided with transparent glass.

As a further scheme of the utility model, the connecting rod and the cover plate are arranged at 90 degrees.

Compared with the prior art, the utility model has the following beneficial effects:

When the cover plate is opened again through the device, the cover plate can lift the direct-current voltmeter body from the inside of the box body through the driving mechanism, so that the hand movement of an experimenter is limited when the direct-current voltmeter body is calibrated, and the efficiency of the direct-current voltmeter body is improved.

Drawings

FIG. 1 is a schematic diagram of the whole structure of a DC voltmeter calibration device according to the present utility model;

fig. 2 is a schematic diagram of a left-view structure of a calibration device for a dc voltmeter according to the present utility model;

FIG. 3 is a schematic diagram of the internal structure of a calibration device for a DC voltmeter according to the present utility model;

Fig. 4 is a schematic diagram of a rack of a calibration device for a dc voltmeter according to the present utility model;

fig. 5 is a schematic diagram of a sector gear of a calibration device for a dc voltmeter according to the present utility model.

In the figure: 1. a case; 2. a cover plate; 3. transparent glass; 4. a first support; 5. locking; 6. a clamping block; 7. a DC voltmeter body; 8. a second support; 9. a connecting rod; 10. a rack; 11. a fixed rod; 12. a limit groove; 13. a T-shaped slide rail; 14. a T-shaped chute; 15. sector gears.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-5, a direct current voltmeter calibrating device comprises a box body 1, two groups of second supports 8 are fixedly installed on one side outer surface of the box body 1 in pairs, a sector gear 15 is rotatably installed between one group of second supports 8, a connecting rod 9 is fixedly installed on the outer surface of the sector gear 15, a cover plate 2 is fixedly installed at one end, far away from the sector gear 15, of the connecting rod 9, two T-shaped sliding grooves 14 are symmetrically formed on one side outer surface of the box body 1, T-shaped sliding rails 13 are slidably installed on the inner walls of the two T-shaped sliding grooves 14, fixing rods 11 are fixedly installed on the outer surfaces, close to one side of the box body 1, of the two T-shaped sliding rails 13, two limit grooves 12 are fixedly installed between the two fixing rods 11, the other end of the fixing rods 11 and the inner walls of the limit grooves 12 are slidably installed on one side of the box body 1, a driving mechanism for driving the direct current voltmeter body 7 to lift is arranged between the cover plate 2 and the direct current voltmeter body 7, the driving mechanism comprises a rack 10 fixedly installed on one side outer surface, close to the sector gear 15, which is fixedly installed on the T-shaped sliding rails 13, a gear 10 is fixedly installed on one side of the sector gear 15, a connecting rod 10 is meshed with the sector gear 15 through 90 degrees, and the fan gear 2 is arranged between the driving the fan gear 2 and the fan gear body 2, and the driving mechanism is conveniently rotated by 90 degrees, and 90 degrees of the fan gear is arranged.

When hasp 5 is opened, through manual rotation apron 2, make apron 2 drive connecting rod 9 rotate round second support 8, drive sector gear 15 through the rotation of connecting rod 9 and rotate, make sector gear 15 drive rack 10 upwards move, upwards move through rack 10's the upward movement drive dead lever 11, make dead lever 11 drive direct current voltmeter body 7 upwards move along spacing groove 12, when opening apron 2 again through this device, can rise direct current voltmeter body 7 from the inside of box 1, the hand activity of experimenter is limited when avoiding calibrating direct current voltmeter body 7, the efficiency of calibrating direct current voltmeter body 7 has been improved.

In this embodiment, be equipped with fixed subassembly between box 1 and the apron 2, fixed subassembly is including fixed mounting in apron 2 keep away from fixture block 6 of sector gear 15 one side surface, and the surface symmetry fixed mounting that box 1 is close to fixture block 6 one side has two first supports 4, rotates between two first supports 4 and installs hasp 5, and the surface of hasp 5 runs through and has seted up the through-hole, through-hole and fixture block 6 assorted.

When the direct-current voltmeter body 7 needs to be calibrated, experimenters manually rotate the lock catches 5, so that through holes on the lock catches 5 are separated from the clamping blocks 6, the cover plate 2 is opened in a simple mode, and the experimenters can operate conveniently.

In this embodiment, the outer surface of the cover plate 2 is fixedly provided with a transparent glass 3, and the data information on the dc voltmeter body 7 is convenient for the experimenter to observe through the transparent glass 3.

When the lock catch 5 is opened, the cover plate 2 is manually rotated, the connecting rod 9 is driven to rotate around the second support 8 by the cover plate 2, the sector gear 15 is driven to rotate by the rotation of the connecting rod 9, the rack 10 is driven to move upwards by the sector gear 15, the fixing rod 11 is driven to move upwards by the upward movement of the rack 10, the fixing rod 11 drives the direct-current voltmeter body 7 to move upwards along the limiting groove 12, and when the cover plate 2 is opened again by the device, the direct-current voltmeter body 7 can be lifted from the inside of the box body 1, so that the hand movement limitation of an experimenter during the calibration of the direct-current voltmeter body 7 is avoided, and the efficiency of calibrating the direct-current voltmeter body 7 is improved.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a direct current voltmeter calibrating device, includes box (1), its characterized in that, two sets of second supports (8) are installed to one side surface of box (1) two by two in a set of fixed mounting, and a set of two between second supports (8) rotate and install sector gear (15), the surface fixed mounting of sector gear (15) has connecting rod (9), the one end fixed mounting who keeps away from sector gear (15) of connecting rod (9) has apron (2), two T type spouts (14) have been seted up to the surface symmetry of box (1) one side, two T type spout (14)'s inner wall equal slidable mounting has T type slide rail (13), two T type slide rail (13) are close to the surface of box (1) one side all fixed mounting dead lever (11), two fixed mounting have direct current voltmeter body (7) between dead lever (11), two spacing groove (12) have been seted up to the inner wall symmetry of box (1) one side relative T type slide rail (13), the other end (11) and inner wall (1) and apron (2) slidable mounting between fixed component, a driving mechanism for driving the direct-current voltmeter body (7) to lift is arranged between the cover plate (2) and the direct-current voltmeter body (7).

2. The direct current voltmeter calibrating device according to claim 1, wherein the fixing component comprises a clamping block (6) fixedly installed on the outer surface of one side, far away from the sector gear (15), of the cover plate (2), two first supports (4) are symmetrically and fixedly installed on the outer surface of one side, close to the clamping block (6), of the box (1), a lock catch (5) is rotatably installed between the two first supports (4), a through hole is formed in the outer surface of the lock catch (5) in a penetrating mode, and the through hole is matched with the clamping block (6).

3. The direct current voltmeter calibrating device according to claim 1, wherein the driving mechanism comprises a rack (10) fixedly mounted on an outer surface of one side of the T-shaped slide rail (13) close to the sector gear (15), and the rack (10) is meshed with the sector gear (15).

4. The direct current voltmeter calibrating device according to claim 1, wherein the outer surface of the cover plate (2) is fixedly provided with transparent glass (3).

5. A direct current voltmeter calibration device according to claim 1, characterized in that the connecting rod (9) is arranged at 90 ° to the cover plate (2).