CN212083528U

CN212083528U - Ammeter for teaching

Info

Publication number: CN212083528U
Application number: CN202020756559.8U
Authority: CN
Inventors: 龙金丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-12-04
Anticipated expiration: 2030-05-09

Abstract

The utility model discloses an ammeter is used in teaching, including the equipment principal, be provided with the pointer that is used for reaction current size in the equipment principal, and be provided with the scale mark that the cooperation pointer used in the equipment principal, be provided with the translucent cover in the equipment principal, be provided with the connector that is used for the connecting cable in the equipment principal, and be equipped with the protection casing that is used for protecting the correlation structure in the equipment principal. A ammeter for teaching, adopt the connector of joint formula, when carrying out the connecting wire and connecting, the mode that utilizes the joint is fixed the connecting wire end, when having guaranteed connection stability, the simplified operation process, save time, through the protection casing that sets up, can get up the protection of connector isotructure when whole device does not use, avoid these structure to external factors and damage, the sealed pad of cooperation simultaneously can also carry out dampproofing and waterproofing, has improved the life of corresponding structure.

Description

Ammeter for teaching

Technical Field

The utility model relates to an ampere meter field, in particular to ammeter for teaching.

Background

The ammeter is a meter used for measuring current in an alternating current circuit and a direct current circuit. The ammeter is made by 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. The ammeter is commonly used as a teaching tool and a detection tool; in the ammeter for teaching at present, each structure on the ammeter directly exposes outside, can not protect effectively when not using, very easily damages, influences normal use to adopt placing of spiral to carry out the fixed clamp to the dop in the ammeter, the operation is comparatively complicated, uses to have certain limitation.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide an ammeter for teaching that can effectively solve the problems in the background art.

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

the utility model provides an ammeter is used in teaching, includes the equipment principal, be provided with the pointer that is used for reaction current size in the equipment principal, and be provided with the scale mark that the cooperation pointer used in the equipment principal, be provided with the translucent cover in the equipment principal, be provided with the connector that is used for the connecting cable in the equipment principal, and be equipped with the protection casing that is used for protecting relevant structure in the equipment principal.

Preferably, the corner position of the transparent cover is provided with a fastening screw, the transparent cover is fixed on the device main body through the fastening screw, and the transparent cover covers the pointer and the scale marks.

Preferably, the lower surface corner position of the equipment main body is fixedly provided with a supporting leg, and the lower end of the supporting leg is provided with an anti-skid pad.

Preferably, the connector includes fixed column, draw-in groove, erection column, connecting rod, fixture block and rubber pad, the fixed column is fixed in on the equipment main part, the draw-in groove is seted up on the fixed column, the connecting rod is fixed in the lower extreme of erection column, the fixture block is fixed in on the connecting rod, and connecting rod, fixture block joint are in the draw-in groove, the rubber pad is fixed in the lower extreme department of erection column.

Preferably, the protection casing includes square groove, safety cover, sealed pad, square piece and fixed fritter, square groove is seted up on the equipment principal, sealed pad sets up in the lower surface of safety cover, square piece is fixed in on the safety cover, fixed fritter is fixed in on the surface of safety cover.

Preferably, the square block and the square groove are clamped mutually, the protective cover is fixed on the equipment main body through the matching of the square block and the square groove, and the sealing gasket and the protective cover are fixedly connected together through glue.

Compared with the prior art, the utility model discloses following beneficial effect has: this ammeter for teaching adopts joint formula connector, when carrying out the connecting wire and connecting, utilizes the joint to fix the connecting wire, and the simplified operation process, save time through the protection casing that sets up, can get up structures such as connector protection when not using, avoids the damage of these structures, has improved corresponding structure's life.

Drawings

FIG. 1 is a schematic view of the overall structure of an ammeter for teaching use in the present invention;

FIG. 2 is a schematic structural view of a connector of an ammeter for teaching of the present invention;

FIG. 3 is a schematic structural view of a protective cover of an ammeter for teaching of the present invention;

fig. 4 is the utility model relates to an enlarged view of ammeter A department for teaching.

In the figure: 1. an apparatus main body; 2. a pointer; 3. scale lines; 4. a transparent cover; 5. a connector; 501. fixing a column; 502. a card slot; 503. assembling the column; 504. a connecting rod; 505. a clamping block; 506. a rubber pad; 6. a protective cover; 601. a square groove; 602. a protective cover; 603. a gasket; 604. a square block; 605. fixing the small blocks; 7. a support leg; 8. a non-slip mat.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, an ammeter for teaching comprises an apparatus main body 1, wherein a pointer 2 for reflecting the magnitude of current is arranged on the apparatus main body 1, a scale mark 3 used in cooperation with the pointer 2 is arranged on the apparatus main body 1, a transparent cover 4 is arranged on the apparatus main body 1, a connector 5 for connecting a cable is arranged on the apparatus main body 1, and a protective cover 6 for protecting a related structure is arranged on the apparatus main body 1;

fastening screws are arranged at the corner positions of the transparent cover 4, the transparent cover 4 is fixed on the equipment main body 1 through the fastening screws, and the transparent cover 4 covers the pointer 2 and the scale marks 3; supporting legs 7 are fixedly arranged at the corners of the lower surface of the equipment main body 1, and anti-skid pads 8 are arranged at the lower ends of the supporting legs 7; the connector 5 comprises a fixing column 501, a clamping groove 502, an assembling column 503, a connecting rod 504, a fixture block 505 and a rubber pad 506, the fixing column 501 is fixed on the device main body 1, the clamping groove 502 is arranged on the fixing column 501, the connecting rod 504 is fixed at the lower end of the assembling column 503, the fixture block 505 is fixed on the connecting rod 504, the connecting rod 504 and the fixture block 505 are clamped in the clamping groove 502, and the rubber pad 506 is fixed at the lower end of the assembling column 503; the protective cover 6 comprises a square groove 601, a protective cover 602, a sealing gasket 603, a square block 604 and a fixed small block 605, wherein the square groove 601 is arranged on the equipment main body 1, the sealing gasket 603 is arranged on the lower surface of the protective cover 602, the square block 604 is fixed on the protective cover 602, and the fixed small block 605 is fixed on the outer surface of the protective cover 602; mutually joint between square piece 604 and the square groove 601, safety cover 602 is through square piece 604, square groove 601 cooperate and be fixed in on the equipment main part 1, through glue fixed connection together between sealed pad 603 and the safety cover 602, adopt joint formula connector 5, when carrying out the connecting wire connection, utilize the joint to fix the connecting wire, the simplified operation process, time saving, protection casing 6 through setting up, can protect structures such as connector 5 when not using, avoid the damage of these structures, the life of corresponding structure has been improved.

It should be noted that the present invention is an ammeter for teaching, when in use, a teacher places the device main body 1 on a desktop, supports the device main body 1 by the supporting legs 7 and the anti-slip pads 8, and then applies an acting force to the protecting cover 602 by the fixing small blocks 605, so that the square blocks 604 are taken out of the square grooves 601, thereby taking the protecting cover 602 and the sealing gaskets 603 off from the device main body 1, at this time, the structures of the connectors 5, the pointers 2, etc. can be seen by the teacher and the learner, the teacher pinches the assembling posts 503 in the connectors 5 with fingers, pulls the assembling posts 503 upwards, so that the connecting rods 504 with the clamping blocks 505 move out of the clamping grooves 502, respectively clamps one end clamping heads of two connecting wires on the fixing posts 501 in the corresponding connectors 5, presses the assembling posts 503 downwards, the clamping blocks 505 are clamped in the grooves in the clamping grooves 502, at this time, the rubber gaskets 506 are in close contact with the clamping, the clamping head is stably connected to the fixing column 501, then the other end of the connecting line is respectively connected to two ends of the circuit, so that the ammeter is connected into the circuit, a teacher starts the circuit switch, the circuit is connected, the ammeter detects the circuit current, the teacher and a learner can visually know the current of the circuit through the value of the scale mark 3 corresponding to the tail end of the pointer 2, meanwhile, the learner can also perform operation and study, the cable is conveniently fixed through the arranged clamped connector 5, the operation is convenient and fast, after the ammeter is used, the teacher covers the protective cover 602 in the protective cover 6 on the device main body 1, so that the square block 604 is inserted into the square groove 601, and the protective cover 602 can well protect corresponding structures on the device main body 1 by matching with the sealing gasket 603, and damage is avoided, the service life is prolonged.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An ammeter is used in teaching which characterized in that: including equipment principal (1), be provided with pointer (2) that are used for reaction current size on equipment principal (1), and be provided with scale mark (3) that cooperation pointer (2) used on equipment principal (1), be provided with translucent cover (4) on equipment principal (1), be provided with connector (5) that are used for the connecting cable on equipment principal (1), and be equipped with protection casing (6) that are used for protecting relevant structure on equipment principal (1).

2. An educational ammeter as claimed in claim 1, wherein: the corner position department of translucent cover (4) is provided with fastening screw, and on translucent cover (4) passed through fastening screw and is fixed in equipment main part (1), translucent cover (4) cover outside pointer (2) and scale mark (3).

3. An educational ammeter as claimed in claim 1, wherein: the lower surface corner position department of equipment main part (1) all fixed mounting have landing leg (7), and the lower extreme of landing leg (7) is provided with slipmat (8).

4. An educational ammeter as claimed in claim 1, wherein: the connector (5) comprises a fixing column (501), a clamping groove (502), an assembling column (503), a connecting rod (504), a clamping block (505) and a rubber pad (506), the fixing column (501) is fixed on the equipment main body (1), the clamping groove (502) is formed in the fixing column (501), the connecting rod (504) is fixed at the lower end of the assembling column (503), the clamping block (505) is fixed on the connecting rod (504), the connecting rod (504) and the clamping block (505) are clamped in the clamping groove (502), and the rubber pad (506) is fixed at the lower end of the assembling column (503).

5. An educational ammeter as claimed in claim 1, wherein: the protection casing (6) are including square groove (601), safety cover (602), sealed pad (603), square piece (604) and fixed fritter (605), square groove (601) are seted up on equipment main part (1), sealed pad (603) set up in the lower surface of safety cover (602), square piece (604) are fixed in on safety cover (602), fixed fritter (605) are fixed in on the surface of safety cover (602).

6. An educational ammeter as claimed in claim 5, wherein: the utility model discloses a device, including safety cover, sealed pad (603), safety cover (602), sealed pad (603) and safety cover (602) are connected together through glue fixed connection, the looks joint between square piece (604) and square groove (601), safety cover (602) are fixed in on equipment main part (1) through the cooperation of square piece (604), square groove (601).