Voltage measuring device for multi-winding and multi-gear transformer

Abstract

The utility model discloses a multi-winding and multi-gear transformer voltage measuring device which comprises a measuring instrument body, a protective shell installed on the right side of the measuring instrument body, two fixing shells installed on the top of the inner wall of the protective shell, two movable arc-shaped clamping blocks arranged at the bottoms of the fixing shells, and a connecting shell. And the connecting shell is installed at the top of the protective shell, and servo motors are installed on the left side and the right side of the inner wall of the connecting shell correspondingly. Through mutual cooperation of the protective shell, the fixed shell, the arc-shaped clamping block, the connecting shell, the servo motor, the forward rotation threaded rod, the reverse rotation threaded rod, the threaded block, the through groove, the adjusting block and the connecting block, the measuring tip can be conveniently protected, the situation that the measuring tip is always exposed to the outside when not used is avoided, and when the measuring instrument is carried, the measuring tip is not damaged. The phenomenon that the measuring tip falls onto the ground due to the fact that the handle and the measuring tip cannot be fixed is avoided, and therefore the phenomenon that the measuring tip is damaged is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of voltage measurement, in particular to a voltage measuring device for a multi-winding and gear transformer. Background Art

[0002] Multi-winding and gear transformers are widely used in lighting, machine tool electrical appliances, mechanical and electronic equipment, medical equipment, rectifier devices, etc. The product performance can meet the various special requirements of users. When conducting no-load tests on multi-winding and gear transformers, staff are required to measure the voltage, which requires the use of measuring devices.

[0003] According to application number: CN202322382623.7, a voltage measuring device includes a measuring instrument, an interface groove is opened at one end of the outer surface of the measuring instrument, a connecting column is inserted into the interior of the interface groove, a wire is fixedly connected to the outer surface of the connecting column, and a detection tip is fixedly connected to the other end of the wire; it is characterized in that a protective component is provided inside the interface groove.

[0004] In the above case, the measuring head of the voltage measuring device is always exposed to the outside world when not in use, which not only increases its wear and tear, but also increases certain safety hazards. At the same time, when the measuring instrument is carried, the handle and the measuring tip cannot be fixed, causing the measuring tip to easily fall to the ground, reducing portability. Utility Model Content

[0005] The purpose of the present invention is to provide a voltage measuring device for a multi-winding and gear transformer to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multi-winding and gear transformer voltage measuring device, comprising a measuring instrument body and a protective shell installed on the right side of the measuring instrument body, two fixed shells are installed on the top of the inner wall of the protective shell, and two movable arc-shaped clamps are provided at the bottom of the fixed shell.

[0007] Preferably, it also includes a connecting shell, which is installed on the top of the protective shell, and servo motors are installed on the left and right sides of the inner wall of the connecting shell. A forward-rotating threaded rod is installed on the output shaft of the servo motor, and a reverse-rotating threaded rod is installed on the end of the forward-rotating threaded rod away from the servo motor.

[0008] Preferably, the surfaces of the forward-rotating threaded rod and the reverse-rotating threaded rod are both threadedly connected with threaded blocks, a through groove is provided on the top of the fixed shell corresponding to the position of the threaded block, and an adjustment block is installed at the bottom of the threaded block.

[0009] Preferably, the bottom of the adjustment block passes through the protective shell and the through slot in sequence from top to bottom and extends to the outside of the through slot, and the side of the adjustment block close to the arc clamping block is fixedly connected to the arc clamping block through a connecting block.

[0010] Preferably, two plugs are plugged into the measuring instrument body, and wires are installed on the plugs. A handle is installed on the side of the wire away from the plug. The side of the handle close to the protective shell passes through the protective shell and the fixed shell in sequence and extends to the interior of the fixed shell. A measuring tip is installed on the top of the handle.

[0011] Preferably, a rubber block used in conjunction with the measuring tip is installed on the top of the inner wall of the fixed shell, and the side of the arc-shaped clamping block close to the handle is in contact with the handle.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The utility model cooperates with the protective shell, the fixed shell, the arc clamping block, the connecting shell, the servo motor, the forward threaded rod, the reverse threaded rod, the threaded block, the through slot, the adjusting block and the connecting block, so as to conveniently protect the measuring tip and avoid the measuring tip being always exposed to the outside when not in use. In addition, when the measuring instrument is carried, it is avoided that the handle and the measuring tip cannot be fixed, resulting in the measuring tip falling to the ground, thereby reducing the damage to the measuring tip and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural cross-sectional view of the front view of the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the bottom view of the fixed shell, arc-shaped clamping block and adjusting block of the utility model;

[0016] Figure 3 This is a structural cross-sectional view of the protective shell, fixed shell, arc-shaped clamping block and connecting block of the utility model.

[0017] In the figure: 1 measuring instrument body, 2 protective shell, 3 fixed shell, 4 arc clamping block, 5 connecting shell, 6 servo motor, 7 forward threaded rod, 8 reverse threaded rod, 9 threaded block, 10 through slot, 11 adjustment block, 12 connecting block, 13 plug, 14 wire, 15 handle, 16 measuring tip. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3 , a multi-winding and gear transformer voltage measuring device includes a measuring instrument body 1 and a protective shell 2 installed on the right side of the measuring instrument body 1. The measuring instrument body 1 is a multimeter. The specific usage method is already an existing public technology and will not be elaborated on here. Two fixed shells 3 are fixedly connected to the top of the inner wall of the protective shell 2, and two movable arc-shaped clamps 4 are provided at the bottom of the fixed shell 3.

[0020] It also includes a connecting shell 5, which is installed on the top of the protective shell 2. The left and right sides of the inner wall of the connecting shell 5 are fixedly connected to a servo motor 6. The servo motor 6 is a forward and reverse motor with a self-locking function. A forward threaded rod 7 is fixedly connected to the output shaft of the servo motor 6, and the end of the forward threaded rod 7 away from the servo motor 6 is fixedly connected to a reverse threaded rod 8. The surface of the forward threaded rod 7 and the surface of the reverse threaded rod 8 are both threadedly connected with a threaded block 9. The side of the threaded block 9 close to the inner wall of the connecting shell 5 is in sliding contact with the inner wall of the connecting shell 5. A through groove 10 is provided at the top of the fixed shell 3 and corresponding to the position of the threaded block 9. The bottom of the threaded block 9 is fixedly connected to an adjusting block 11. The bottom of the adjusting block 11 passes through the protective shell 2 and the through groove 10 from top to bottom and extends to the outside of the through groove 10. The side of the adjusting block 11 close to the arc clamping block 4 is fixedly connected to the arc clamping block 4 through a connecting block 12.

[0021] Furthermore, a controller is fixedly connected to the right side of the protective shell 2, a battery is fixedly connected to the groove at the bottom right side of the protective shell 2, the servo motor 6 is electrically connected to the controller, and the battery supplies power to it.

[0022] Two plugs 13 are plugged into the measuring instrument body 1, and a wire 14 is fixedly connected to the plug 13. A handle 15 is fixedly connected to the side of the wire 14 away from the plug 13. The side of the handle 15 close to the protective shell 2 passes through the protective shell 2 and the fixed shell 3 in sequence and extends to the interior of the fixed shell 3. A measuring tip 16 is fixedly connected to the top of the handle 15, and a rubber block 17 used in conjunction with the measuring tip 16 is fixedly connected to the top of the inner wall of the fixed shell 3. The top of the measuring tip 16 and the bottom of the rubber block 17 are in contact with each other, and the side of the arc-shaped clamping block 4 close to the handle 15 is in contact with the handle 15.

[0023] Through the mutual cooperation of the protective shell 2, the fixed shell 3, the arc-shaped clamping block 4, the connecting shell 5, the servo motor 6, the forward threaded rod 7, the reverse threaded rod 8, the threaded block 9, the through slot 10, the adjustment block 11 and the connecting block 12, the measuring tip 16 is conveniently protected to avoid being always exposed to the outside world when the measuring tip 16 is not in use. Moreover, when the measuring instrument is carried, the handle 15 and the measuring tip 16 cannot be fixed, which prevents the measuring tip 16 from falling to the ground, thereby reducing damage to the measuring tip 16 and improving practicality.

[0024] When in use, when it is necessary to use the measuring tip 16 to measure the voltage, start the servo motor 6, and the servo motor 6 drives the forward threaded rod 7 and the reverse threaded rod 8 to rotate through the output shaft, so that the two threaded blocks 9 on the same side move away from each other, and the threaded block 9 drives the arc clamping block 4 to move away from the handle 15 through the adjusting block 11 and the connecting block 12, so that the arc clamping block 4 and the handle 15 are separated, and then the handle 15 is pulled downward, and the handle 15 drives the measuring tip 16 to move downward, so that it is pulled out from the fixed shell 3 and the protective shell 2, and the voltage can be measured by the measuring tip 16.

[0025] To sum up: the continuous stretching and flattening processing device for oriented silicon steel solves the problems raised in the above-mentioned background technology through the mutual cooperation of the protective shell 2, the fixed shell 3, the arc clamping block 4, the connecting shell 5, the servo motor 6, the forward threaded rod 7, the reverse threaded rod 8, the threaded block 9, the through groove 10, the adjustment block 11 and the connecting block 12.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Multi-winding and gear transformer voltage measuring device, characterized by: The invention comprises a measuring instrument body (1) and a protective shell (2) installed on the right side of the measuring instrument body (1); two fixed shells (3) are installed on the top of the inner wall of the protective shell (2); and two movable arc-shaped clamping blocks (4) are provided on the bottom of the fixed shell (3).

2. The multi-winding and gear transformer voltage measuring device according to claim 1, characterized in that: The invention also includes a connecting shell (5), wherein the connecting shell (5) is installed on the top of the protective shell (2), and servo motors (6) are installed on the left and right sides of the inner wall of the connecting shell (5), a forward-rotating threaded rod (7) is installed on the output shaft of the servo motor (6), and a reverse-rotating threaded rod (8) is installed on the end of the forward-rotating threaded rod (7) away from the servo motor (6).

3. The multi-winding and gear transformer voltage measuring device according to claim 2, characterized in that: The surfaces of the forward-rotating threaded rod (7) and the reverse-rotating threaded rod (8) are both threadedly connected with threaded blocks (9); a through groove (10) is provided at the top of the fixed shell (3) and at a position corresponding to the threaded block (9); and an adjustment block (11) is installed at the bottom of the threaded block (9).

4. The voltage measuring device for a multi-winding and gear transformer according to claim 3, characterized in that: The bottom of the adjustment block (11) passes through the protective shell (2) and the through slot (10) in sequence from top to bottom and extends to the outside of the through slot (10); the side of the adjustment block (11) close to the arc-shaped clamping block (4) is fixedly connected to the arc-shaped clamping block (4) via a connecting block (12).

5. The voltage measuring device for a multi-winding and gear transformer according to claim 4, characterized in that: Two plugs (13) are plugged into the measuring instrument body (1), and a wire (14) is installed on the plug (13). A handle (15) is installed on the side of the wire (14) away from the plug (13). The side of the handle (15) close to the protective shell (2) passes through the protective shell (2) and the fixed shell (3) in sequence and extends into the interior of the fixed shell (3). A measuring tip (16) is installed on the top of the handle (15).

6. The voltage measuring device for a multi-winding and gear transformer according to claim 5, characterized in that: A rubber block (17) used in conjunction with the measuring tip (16) is installed on the top of the inner wall of the fixed shell (3), and the side of the arc-shaped clamping block (4) close to the handle (15) is in contact with the handle (15).

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