CN217181704U

CN217181704U - Physical electricity experimental device

Info

Publication number: CN217181704U
Application number: CN202122594622.XU
Authority: CN
Inventors: 王江德
Original assignee: Guangxi Yunjia Digital Technology Co ltd
Current assignee: Guangxi Yunjia Digital Technology Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-08-12
Anticipated expiration: 2031-10-27

Abstract

The utility model discloses a physics electricity experimental apparatus, including the ampere meter body, this internal recess that is equipped with of ampere meter, fixedly connected with loop bar on the recess inner wall, the cover is equipped with the spring on the loop bar, the terminal overcoat of loop bar is equipped with rather than sliding connection's well wedge, the both ends of spring and the inner wall and the well wedge fixed connection of recess, fixedly connected with connecting rod on the well wedge, the little wedge of fixedly connected with on the connecting rod, little wedge is equipped with the inserted block rather than offsetting outward, the inserted block slides on the recess inner wall and sets up, be equipped with the wire on the inserted block, there is the spread groove on the inserted block. The utility model has the advantages that the insertion block is inserted into the instrument, so that the wire and the electrical instrument can be more conveniently connected and more stable; the wires on the insert blocks are convenient to replace, and the practicability of the whole equipment is improved.

Description

Physical electricity experimental device

Technical Field

The utility model relates to a physics electricity technical field especially relates to a physics electricity experimental apparatus.

Background

Electricity is one of the branching disciplines of physics. The formation of "electricity" and its applications are mainly studied. The term "electricity" is transferred from Greek amber in the Western world and from lightning phenomenon in China.

In the existing physical electrical experiment, the connection of each electrical instrument is usually realized by winding a copper wire in a lead on a binding post of the instrument, the connection method is troublesome, and time is wasted if a plurality of electrical instruments are connected; this connection method is also not robust and may result in an open circuit, which may affect the experiment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a physical electricity experimental device.

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

a physical and electrical experimental device comprises an ammeter body, wherein a groove is formed in the ammeter body, a loop bar is fixedly connected to the inner wall of the groove, a spring is sleeved on the loop bar, a middle wedge block in sliding connection with the loop bar is sleeved outside the tail end of the loop bar, two ends of the spring are fixedly connected with the inner wall of the groove and the middle wedge block, a connecting rod is fixedly connected to the middle wedge block, a small wedge block is fixedly connected to the connecting rod, an inserting block which is abutted against the small wedge block is arranged outside the small wedge block, the inserting block is arranged on the inner wall of the groove in a sliding mode, a lead is arranged on the inserting block, a connecting groove is formed in the inserting block, the small wedge block is abutted against the inner wall of the connecting groove, a first electrode plate is arranged in the connecting groove and electrically connected with the ammeter body, a second electrode plate which is abutted against the first electrode plate is arranged on the connecting rod, and electrically connected with the lead, the ammeter is characterized in that a large wedge-shaped block which is abutted against the middle wedge-shaped block is arranged on the middle wedge-shaped block, a pressing block is fixedly connected onto the large wedge-shaped block, the pressing block is arranged on the inner wall of the ammeter body in a sliding mode, and a wire changing structure is arranged in the inserting block.

Preferably, the wire changing structure comprises a wire changing box installed inside the insertion block, a screw is fixedly connected to the bottom surface of the wire changing box, the wire penetrates through the insertion block and the wire changing box, a copper wire is arranged in the wire and wound on the screw, a nut in threaded connection with the screw is sleeved outside the screw, and the screw is electrically connected with the first electrode plate.

Preferably, the lower end of the ammeter body is provided with a non-slip mat, and the non-slip mat is fixedly connected with the ammeter body through viscose.

Preferably, a fixing block is arranged on the large wedge-shaped block and is located inside the groove.

Preferably, the wire changing box and the plug block are provided with an opening and closing door together.

Preferably, the plug block and the wire changing box are made of plastics.

Compared with the prior art, the utility model, its beneficial effect does:

1. through the mode that uses the plug block of inserting, be connected wire and electricity instrument, after the use, press the pressing block again, can take out the wire, and need not shorten the time of experimental connection electricity instrument through the mode of winding the wire.

2. Little wedge and spread groove fix the wire, and is more firm than wire-wound mode, avoids causing the influence because contact failure to the experiment.

3. When the wire ages for a long time, only the nut in the plug block needs to be unscrewed, and then a new wire is replaced for connection, so that the whole wire and the plug block do not need to be replaced.

In summary, the utility model can connect the conducting wire and the electrical instrument more conveniently and more stably by inserting the inserting block into the instrument; the wires on the insert blocks are convenient to replace, and the practicability of the whole equipment is improved.

Drawings

Fig. 1 is a front view of the physical electricity experimental apparatus provided by the present invention.

Fig. 2 is a side sectional view of a part of the structure.

Fig. 3 is a top sectional view of a partial structure.

In the figure: 1 ammeter body, 2 pressing blocks, 3 insertion blocks, 4 wires, 5 small wedge-shaped blocks, 6 connecting rods, 7 middle wedge-shaped blocks, 8 loop bars, 9 springs, 10 large wedge-shaped blocks, 11 first electrode plates, 12 second electrode plates, 13 copper wires, 14 screws, 15 nuts and 16 wire changing boxes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a physics electricity experimental apparatus, including ampere meter body 1, the slipmat is installed to ampere meter body 1 lower extreme, the slipmat passes through viscose fixed connection with ampere meter body 1, in the experimentation, the staff can be carelessly the mistake and touch ammeter body 1 by mistake, lead to ammeter body 1 landing, the slipmat can avoid ammeter body 1 to skid when using, be equipped with the recess in the ampere meter body 1, fixedly connected with loop bar 8 on the recess inner wall, the cover is equipped with spring 9 on the loop bar 8, the terminal overcoat of loop bar 8 is equipped with rather than sliding connection's well wedge 7, the both ends of spring 9 and the inner wall and well wedge 7 fixed connection of recess.

The connecting rod 6 is fixedly connected on the middle wedge-shaped block 7, the small wedge-shaped block 5 is fixedly connected on the connecting rod 6, the plug-in block 3 which is abutted against the small wedge-shaped block 5 is arranged outside the small wedge-shaped block 5, the plug-in block 3 is arranged on the inner wall of the groove in a sliding manner, the lead 4 is arranged on the plug-in block 3, the connecting groove is arranged on the plug-in block 3, the small wedge-shaped block 5 is abutted against the inner wall of the connecting groove, the first electrode sheet 11 is arranged in the connecting groove, the first electrode sheet 11 is electrically connected with the ammeter body 1, the second electrode sheet 12 which is abutted against the first electrode sheet 11 is arranged on the connecting rod 6 and is electrically connected with the lead 4, the middle wedge-shaped block 7 is provided with the large wedge-shaped block 10 which is abutted against the middle wedge-shaped block 10, the fixed block is arranged inside the groove and can effectively prevent the large wedge-shaped block 10 from sliding out of the ammeter body 1, the pressing block 2 is fixedly connected on the large wedge-shaped block 10, the pressing block 2 is arranged on the inner wall of the ammeter body 1 in a sliding manner, the plug block 3 is internally provided with a wire changing structure.

The wire changing structure comprises a wire changing box 16 installed inside an inserting block 3, the wire changing box 16 and the inserting block 3 are jointly provided with a switch door, a screw 14 is fixedly connected to the bottom surface of the wire changing box 16, a wire 4 penetrates through the inserting block 3 and the wire changing box 16, a copper wire 13 is arranged in the wire 4, the copper wire 13 is wound on the screw 14, a nut 15 in threaded connection with the screw 14 is sleeved outside the screw 14, the screw 14 is electrically connected with a first electrode plate 11, and the inserting block 3 and the wire changing box 16 are made of plastics.

The working principle is as follows: when needing to do the electricity experiment, when wire 4 connects ampere meter body 1, the staff at first inserts the inserted block 3 recess, remove the in-process, the right wall of inserted block 3 offsets with the inclined plane of little wedge 5, make little wedge 5, connecting rod 6 and well wedge 7 rebound, well wedge 7 compression spring 9, when the right wall of inserted block 3 no longer offsets with the inclined plane of little wedge 5, under the effect of spring 9 elasticity, wedge 7 in the drive, connecting rod 6 and little wedge 5 rebound, little wedge 5 rebound offsets with the spread groove of inserted block 3, carry on spacingly to inserted block 3, first electrode piece 11 offsets with second electrode piece 12 this moment, wire 4 accomplishes the electricity with ampere meter body 1 and is connected.

After the experiment, the staff presses down the pressing block 2, the pressing block 2 drives the large wedge block 10 to move rightwards, the large wedge block 10 moves rightwards and offsets with the middle wedge block 7, the middle wedge block 7 moves upwards, the connecting rod 6 and the small wedge block 5 move upwards, the small wedge block 5 does not offset with the plug block 3, the plug block 3 is not limited, and the staff extracts the plug block 3 at the moment.

When the lead 4 is used for a long time, the lead 4 is aged to cause poor conductivity, at the moment, a worker firstly opens a switch door on the plug block 3, then unscrews the nut 15, takes out the aged lead 4, then inserts a new lead 4 into the plug block 3 and the wire changing box 16, winds the copper wire 13 on the screw 14, and tightens the nut 15 to finish the replacement of the aged lead 4.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A physical and electrical experiment device comprises an ammeter body (1), and is characterized in that: the ammeter is characterized in that a groove is formed in the ammeter body (1), a loop bar (8) is fixedly connected to the inner wall of the groove, a spring (9) is sleeved on the loop bar (8), a middle wedge block (7) is sleeved outside the tail end of the loop bar (8) and is in sliding connection with the loop bar, two ends of the spring (9) are fixedly connected with the inner wall of the groove and the middle wedge block (7), a connecting rod (6) is fixedly connected to the middle wedge block (7), a small wedge block (5) is fixedly connected to the connecting rod (6), an inserting block (3) is arranged outside the small wedge block (5) and is abutted against the small wedge block, the inserting block (3) is arranged on the inner wall of the groove in a sliding mode, a wire (4) is arranged on the inserting block (3), a connecting groove is formed in the inserting block (3), the small wedge block (5) is abutted against the inner wall of the connecting groove, and a first electrode plate (11) is arranged in the connecting groove, first electrode slice (11) are connected with ampere meter body (1) electricity, be equipped with on connecting rod (6) second electrode slice (12) that offsets with first electrode slice (11), second electrode slice (12) are connected with wire (4) electricity, be equipped with big wedge (10) rather than offsetting on well wedge (7), fixedly connected with presses briquetting (2) on big wedge (10), press briquetting (2) and slide on the inner wall of ampere meter body (1) and set up, be equipped with the structure of changing wire in inserted block (3).

2. The physical and electrical experiment device according to claim 1, wherein the wire changing structure comprises a wire changing box (16) installed inside the plug block (3), a screw (14) is fixedly connected to the bottom surface of the wire changing box (16), the wire (4) penetrates through the plug block (3) and the wire changing box (16), a copper wire (13) is arranged in the wire (4), the copper wire (13) is wound on the screw (14), a nut (15) in threaded connection with the screw (14) is sleeved outside the screw (14), and the screw (14) is electrically connected with the first electrode plate (11).

3. The physical and electrical experiment device as claimed in claim 1, wherein a non-slip mat is mounted at the lower end of the ammeter body (1), and the non-slip mat is fixedly connected with the ammeter body (1) through glue.

4. A physical electrical experimental apparatus according to claim 1, characterized in that the large wedge block (10) is provided with a fixing block, and the fixing block is located inside the groove.

5. A physical electrical experimental apparatus according to claim 2, characterized in that said wire changing box (16) and said plug block (3) are provided with a switch door.

6. A physical electrical testing apparatus according to claim 2, wherein said plug block (3) and said wire changing box (16) are made of plastic.