CN215449345U

CN215449345U - Visual ammeter

Info

Publication number: CN215449345U
Application number: CN202121300316.4U
Authority: CN
Inventors: 俞健
Original assignee: Shanghai Haoxin Power Group Co Ltd
Current assignee: Shanghai Haoxin Power Group Co Ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2022-01-07
Anticipated expiration: 2031-06-10

Abstract

The utility model discloses a visual ammeter, belonging to the technical field of ammeters, comprising an ammeter main body, the upper side of the front wall of the ammeter main body is provided with a housing, the rear side of the housing is provided with a dial plate, the upper side of the front wall of the dial plate is uniformly provided with a plurality of scale marks, an adjusting knob is arranged in the middle of the front wall of the dial plate, penetrates through the front wall of the ammeter main body and extends to the outer side of the cover casing, the rear end of the adjusting knob is connected with a pointer, the lower side of the housing is provided with a mounting plate, the upper wall of the mounting plate is uniformly connected with three bases, the common cooperation of the rubber insulating sleeve, the plastic plate, the clamping rod and the groove ensures that the binding post is protected when not used, prolongs the service life of the binding post, through the effect of carrying the handle, conveniently remove and pick up the ampere meter main part, prevent dropping of ampere meter main part in the measurement process.

Description

Visual ammeter

Technical Field

The utility model relates to the technical field of an ammeter, in particular to a visual ammeter.

Background

The ammeter is a meter used for measuring current in an alternating current circuit and a direct current circuit. In the circuit diagram, the symbol of the ammeter is "circle a". The current value is in ampere or A standard unit, and the ammeter is made according to the action of magnetic field force applied to the current conductor in the magnetic field. The ammeter is internally provided with a permanent magnet, a magnetic field is generated between poles, a coil is arranged in the magnetic field, two ends of the coil are respectively provided with a hairspring spring, the springs are respectively connected with a binding post of the ammeter, the springs and the coil are connected through a rotating shaft, and a pointer is arranged at the front end of the rotating shaft opposite to the ammeter. When current flows, the current passes through the magnetic field along the spring and the rotating shaft, and the current cuts the magnetic induction line, so that the coil deflects under the action of the magnetic field force to drive the rotating shaft and the pointer to deflect. Since the magnitude of the magnetic field force increases with increasing current, the magnitude of the current can be observed by the degree of deflection of the pointer. This is called magnetoelectric ammeter, which is the one used in our laboratory at ordinary times.

The visual ammeter is usually used for detecting the current of equipment, and the middle position of a binding post of the existing visual ammeter is usually in direct contact with the external air, so that the binding post is easy to corrode, and the measurement result is inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a visual ammeter, and aims to solve the problems that the middle position of a binding post of the existing visual ammeter proposed in the background art is usually in direct contact with the external air, so that the binding post is easy to corrode, and the measurement result is inaccurate.

In order to achieve the purpose, the utility model provides the following technical scheme: a visual ammeter comprises an ammeter main body, wherein a housing is arranged on the upper side of the front wall of the ammeter main body, a dial plate is arranged on the rear side of the housing, a plurality of scale marks are uniformly arranged on the upper side of the front wall of the dial plate, an adjusting knob is arranged in the middle of the front wall of the dial plate, the adjusting knob penetrates through the front wall of the ammeter main body and extends to the outer side of the housing, a pointer is connected to the rear end of the adjusting knob, a mounting plate is arranged on the lower side of the housing, three bases are uniformly connected to the upper wall of the mounting plate, screw holes are formed in the three bases, binding posts are screwed in the screw holes, a rubber insulating sleeve is connected in the middle of the binding posts, a through groove is formed in the middle of the rubber insulating sleeve, plastic plates are connected to the left side and the right side of the upper wall of the rubber insulating sleeve, clamping rods are connected to one side, close to the two plastic plates, penetrate through the outer wall of the binding posts and extend to the inner parts of the binding posts, and a groove is formed at the joint of the binding post and the clamping rod.

Preferably, the middle part of the upper wall of the ammeter main body is provided with a lifting handle, and the left side and the right side of the lower end of the lifting handle are fixedly connected with the upper wall of the ammeter main body.

Preferably, four angles of the lower end of the mounting plate are respectively provided with a protective pad, and four upper walls of the protective pads are fixedly connected with the lower wall of the mounting plate.

Preferably, the left terminal is a negative terminal, and the two right terminals are positive terminals.

Preferably, the housing is made of transparent plastic.

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

1) through the common cooperation of rubber insulation cover, plastic slab, kelly, recess, guarantee that the terminal obtains the protection when not using, the life of extension terminal.

2) Through the effect of carrying the handle, conveniently remove and pick up the ampere meter main part, prevent dropping of ampere meter main part in the measurement process.

Drawings

FIG. 1 is a schematic front view of the present invention;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: 1 ammeter main part, 2 enclosers, 3 adjust knob, 4 pointers, 5 scale marks, 6 mounting panels, 7 protection pads, 8 carry handle, 9 terminal, 10 bases, 11 screw, 12 rubber insulation cover, 13 plastic slabs, 14 kellies, 15 recesses.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-2, the present invention provides a technical solution: a visual ammeter comprises an ammeter main body 1, wherein a housing 2 is arranged on the upper side of the front wall of the ammeter main body 1, a dial plate is arranged on the rear side of the housing 2, a plurality of scale marks 5 are uniformly arranged on the upper side of the front wall of the dial plate, an adjusting knob 3 is arranged in the middle of the front wall of the dial plate, the adjusting knob 3 penetrates through the front wall of the ammeter main body 1 and extends to the outer side of the housing 2, a pointer 4 is connected to the rear end of the adjusting knob 3, a mounting plate 6 is arranged on the lower side of the housing 2, three bases 10 are uniformly connected to the upper wall of the mounting plate 6, screw holes 11 are formed in the three bases 10, a binding post 9 is screwed in the screw holes 11, a rubber insulating sleeve 12 is connected to the middle part of the binding post 9, a through groove 16 is formed in the middle part of the rubber insulating sleeve 12, plastic plates 13 are connected to the left side and the right side of the upper wall of the rubber insulating sleeve 12, and clamping rods 14 are connected to one side of the two plastic plates 13, the clamping rod 14 penetrates through the outer wall of the terminal 9 and extends into the terminal 9, and a groove 15 is formed in the joint of the terminal 9 and the clamping rod 14.

The middle of the upper wall of the ammeter main body 1 is provided with a lifting handle 8, the left side and the right side of the lower end of the lifting handle 8 are fixedly connected with the upper wall of the ammeter main body 1, four corners of the lower end of the mounting plate 6 are provided with protective pads 7, the upper walls of the four protective pads 7 are fixedly connected with the surface of the lower wall of the mounting plate 6, the left terminal 9 is a negative terminal, the two right terminals 9 are positive terminals, and the housing 2 is made of transparent plastic.

The working principle is as follows: firstly, adjust pointer 4 to zero scale mark 5 department through adjust knob 3, take off rubber insulation cover 12 on the three terminal 11 afterwards, kelly 14 and recess 15 on the plastic slab 13 separate, three terminal 11 can normal use, in the measurement process, only need to grasp with the hand and carry handle 8 and can guarantee that ampere meter main part 1 drops in the measurement process, insert inside recess 15 that is close to mutually with all kellies 14 after the measurement, make rubber insulation cover 12 be connected with terminal 11 again, the life of extension terminal 11.

While there have been shown and described the fundamental principles and essential features of the utility model and advantages thereof, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A visual ammeter comprising an ammeter body (1), characterized in that: the ammeter is characterized in that a housing (2) is arranged on the upper side of the front wall of the ammeter main body (1), a dial plate is arranged on the rear side of the housing (2), a plurality of scale marks (5) are uniformly arranged on the upper side of the front wall of the dial plate, an adjusting knob (3) is arranged in the middle of the front wall of the dial plate, the adjusting knob (3) penetrates through the front wall of the ammeter main body (1) and extends to the outer side of the housing (2), a pointer (4) is connected to the rear end of the adjusting knob (3), a mounting plate (6) is arranged on the lower side of the housing (2), three bases (10) are uniformly connected to the upper wall of the mounting plate (6), screw holes (11) are formed in the bases (10), a binding post (9) is screwed in the screw holes (11), a rubber insulating sleeve (12) is connected to the middle of the binding post (9), a through groove (16) is formed in the middle of the rubber insulating sleeve (12), and plastic plates (13) are connected to the left and right sides of the upper wall of the rubber insulating sleeve (12), two one side that plastic slab (13) are close to mutually all is connected with kelly (14), kelly (14) run through terminal (9) outer wall and extend to the inside of terminal (9), the junction of terminal (9) and kelly (14) is equipped with recess (15).

2. A visual ammeter according to claim 1 wherein: the ammeter is characterized in that a lifting handle (8) is arranged in the middle of the upper wall of the ammeter main body (1), and the left side and the right side of the lower end of the lifting handle (8) are fixedly connected with the upper wall of the ammeter main body (1).

3. A visual ammeter according to claim 1 wherein: four angles of mounting panel (6) lower extreme all are equipped with protection pad (7), four protection pad (7) upper wall all with mounting panel (6) lower wall fixed surface connection.

4. A visual ammeter according to claim 1 wherein: the binding posts (9) on the left side are negative binding posts, and the two binding posts (9) on the right side are positive binding posts.

5. A visual ammeter according to claim 1 wherein: the housing (2) is made of transparent plastic.