CN214068100U - Replaceable modularized high-frequency circuit experiment box - Google Patents

Abstract

The utility model relates to the field of teaching aids, in particular to a replaceable modularized high-frequency circuit experimental box, which comprises an upper box body and a lower box body which are rotationally connected; a plurality of display panels are arranged in the upper box body; a plurality of accommodating grooves are formed in the lower box body, circuit modules are movably mounted in the accommodating grooves, a wiring terminal is arranged at one end of each circuit module facing the upper box body, and a wiring module is arranged between every two adjacent accommodating grooves; the wiring terminal, the wiring module, the display panel, the power supply module and the experiment mainboard are electrically connected; in the device, the circuit module can be movably connected with the lower box body through the accommodating groove, and when other circuit experiments need to be carried out, other circuit modules are replaced; the circuit module is connected with the wiring module through the wiring terminal, and further electrically connected with the display panel, the power supply module and the experiment mainboard, so that a circuit simulation experiment is realized; in addition, when the circuit module is replaced, the lifting mechanism can drive the circuit module to ascend along the accommodating groove, and a user can replace the circuit module conveniently.

Description

Replaceable modularized high-frequency circuit experiment box

Technical Field

The utility model relates to a teaching and assisting articles for use field especially relates to an interchangeable modularization high frequency circuit experimental box.

Background

At present, the communication engineering major and the electronic information engineering major of each college in China are generally provided with programmable logic device courses, even some colleges regard the courses as major main courses, students need to perform corresponding circuit experiments, and circuit experiment boxes are widely applied to the field of circuit teaching.

However, in the existing circuit experiment box, each circuit module is fixed in the box body and cannot be replaced; so can only teach and the experiment to circuit module that has in the box, if need teach the circuit module that does not have in the box, can only change the circuit experimental box that has this circuit module, the practicality is relatively poor.

Disclosure of Invention

To the deficiency that prior art exists, the utility model aims to provide an interchangeable modularization high frequency circuit experimental box solves above-mentioned problem.

A replaceable modularized high-frequency circuit experiment box comprises an upper box body and a lower box body which are connected in a rotating mode;

a plurality of display panels are arranged in the upper box body; a plurality of accommodating grooves are formed in the lower box body, circuit modules are movably mounted in the accommodating grooves, a wiring terminal is arranged at one end of each circuit module facing the upper box body, and a wiring module is arranged between every two adjacent accommodating grooves; the wiring terminal, the wiring module, the display panel, the power supply module and the experiment mainboard are electrically connected;

the accommodating groove is internally provided with a lifting mechanism, and the lifting mechanism comprises a lifting device and a limiting device, wherein the lifting device is used for driving the circuit module to move back and forth in the accommodating groove, and the limiting device is used for controlling the lifting device to move.

The lifting device comprises a support plate and a lifting spring, one end of the lifting spring is fixedly installed in the accommodating groove, and the other end of the lifting spring is fixedly connected with the support plate.

A fixture block I is mounted on the end face, facing the lifting spring, of the support plate, and the section of the fixture block I is of a slope structure; and a limiting clamping groove is formed in the carrier plate along the vertical direction of the clamping block I.

And the lower box body on one side of the fixture block I is provided with an installation through groove, and the limiting device is installed in the installation through groove.

The limiting device comprises a sliding rod and a clamping block II, the section of the clamping block II is of an inverse slope structure relative to the section of the clamping block I, and the size of the clamping block II is matched with that of the limiting clamping groove;

one end of the sliding rod is fixedly connected with the clamping block II. The other end of the sliding rod is fixedly connected with a driving device used for pulling the sliding rod, a spring is sleeved outside the sliding rod, and spring abutting blocks are respectively arranged at the positions of the installation through groove, close to the notch of the fixture block I, and far away from the notch of the fixture block I;

one end of the spring is fixedly connected with the clamping block II and is abutted against a spring abutting block close to the notch of the clamping block I; the other end of the spring is fixedly connected with a spring abutting block at the notch far away from the clamping block I.

The installation leads to groove one side intercommunication and has the drive mounting groove, drive arrangement installs in the drive mounting groove.

The driving device comprises a pressing rod and a pulley fixedly connected with the pressing rod; one end of the sliding rod, far away from the clamping block II, is fixedly connected with a steel rope, one end of the steel rope is fixed on the side wall of the mounting groove, a pulley groove of the pulley is abutted to the steel rope, the other end of the sliding rod penetrates through the mounting groove and is connected with a pressing cap, a pressing spring is sleeved outside the sliding rod, one end of the pressing spring is fixedly connected with the pressing cap, and the other end of the pressing spring is fixedly connected with the surface of the lower box body.

The pulley frame of the pulley is also provided with an anti-falling device for preventing the steel rope from falling off, the anti-falling device is an anti-falling arc plate, two ends of the anti-falling arc plate are fixedly arranged on the pulley frame, the anti-falling arc plate and the peripheral surface of the pulley frame form a channel, and the steel rope is arranged in the channel.

Compared with the prior art, the utility model discloses the beneficial effect of equipment is:

1. in the device of the utility model, the lower box body is provided with the accommodating groove, the circuit module can be movably connected with the lower box body through the accommodating groove, and when other circuit experiments need to be carried out, other circuit modules can be replaced; the circuit module is connected with the wiring module through the wiring terminal, and then is electrically connected with the display panel, the power supply module and the experiment mainboard, so that a circuit simulation experiment is realized.

2. The utility model discloses equipment is provided with hoisting mechanism, and when changing circuit module, hoisting mechanism can drive circuit module and rise along accomodating the groove, and the person of facilitating the use changes circuit module.

Drawings

FIG. 1 is a schematic diagram of an alternative modular high frequency circuit experimental box.

FIG. 2 is a schematic diagram of an alternative modular high frequency circuit experimental box with circuit modules removed.

FIG. 3 is a sectional view of an alternative modular high frequency circuit experimental box.

Fig. 4 is a schematic view of a spacing device.

Fig. 5 is a schematic view of the pulley after the anti-drop device is installed.

In the drawings: the device comprises an upper box body 1, a display panel 11, a lower box body 2, a containing groove 21, a circuit module 22, a wiring terminal 23, a wiring module 24, a lifting device 3, a carrier plate 31, a lifting spring 32, a limiting clamping groove 33, a clamping block I34, a limiting device 4, a sliding rod 41, a clamping block II42, a spring 43, a spring abutting block 44, an installation through groove 5, a driving device 6, a pressing rod 61, a pulley 62, a steel rope 63, a pressing cap 64, a pressing spring 65, a pulley frame 66, an anti-falling arc-shaped plate 67, a channel 68, a sliding rod limiting clamping block 69 and an installation groove 7.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

A replaceable modularized high-frequency circuit experiment box comprises an upper box body 1 and a lower box body 2 which are connected in a rotating way;

a plurality of display panels 11 are arranged in the upper box body 1; a plurality of accommodating grooves 21 are formed in the lower box body 2, and circuit modules 22 are movably mounted in the accommodating grooves 21;

in the present embodiment, the circuit module 22 mainly includes: the device comprises a small-signal resonant amplifier module, a power amplifier module, an oscillator module, an amplitude modulation module, a demodulation circuit module, an expansion design module and a comprehensive design module; the circuit module 22 is divided into three levels, namely a large circuit module, a medium circuit module and a small circuit module, according to the volume, the circuit modules in the same level have the same size, and the accommodating grooves 21 with three specifications are arranged in the accommodating grooves 21 according to the circuit modules 22 in different levels;

because the circuit module 22 is movably inserted into the accommodating groove 21, in order to facilitate wiring, a wiring terminal 23 is arranged at one end, facing the upper surface of the box body 1, of the circuit module 22 of the equipment, a wiring module 24 is arranged between the adjacent accommodating grooves 21, the wiring terminal 23 is connected with the wiring module 24 through double-end wiring wires, and the wiring wires can adopt double-end wiring wires such as DVI connectors and HDMI connectors;

the circuit module 22 is connected with the wiring module 24 through the wiring terminal 23, and further connected with the display panel 11, the power supply module and the experiment mainboard, so that a circuit simulation experiment is realized; since the display panel 11, the power module, and the experimental motherboard are all prior art means, detailed description thereof is omitted in this embodiment.

Further, considering that when replacing the circuit module 22, the user needs to put the finger into the receiving slot 21 to take out the circuit module 22, the taking out method is still suitable for the circuit module 22 with light weight, but for the circuit module 22 with heavy weight, the taking out method is very inconvenient;

in view of the above problem, in the present embodiment, a lifting mechanism is installed in the accommodating groove 21, and the lifting mechanism includes a lifting device 3 for driving the circuit module 22 to move back and forth in the accommodating groove 21, and a limiting device 4 for controlling the movement of the lifting device 3.

Specifically, the lifting device 3 includes a carrier plate 31 and a lifting spring 32, one end of the lifting spring 32 is fixedly installed in the receiving slot 21, the other end is fixedly connected to the carrier plate 31, and the carrier plate 31 is used for carrying the circuit module 22; a fixture block I34 is installed on the end surface of the carrier plate 31 facing the lifting spring 32, and the section of the fixture block I34 is of a slope structure; a limiting clamping groove 33 is formed in the carrier plate 31 along the vertical direction of the clamping block I34; an installation through groove 5 is formed in the lower box body 2 on one side of the fixture block I34, and the limiting device 4 is installed in the installation through groove 5; the limiting device 4 comprises a sliding rod 41 and a fixture block II42, the section of the fixture block II42 is of an inverse slope structure relative to the section of the fixture block I34, and the size of the fixture block II42 is matched with that of the limiting slot 33; one end of the sliding rod 41 is fixedly connected with the fixture block II42, the other end of the sliding rod 41 is fixedly connected with a driving device 6 for pulling the sliding rod 41, a spring 43 is sleeved outside the sliding rod 41, and spring abutting blocks 44 are respectively arranged at the positions of the installation through groove 5, which are close to the notch of the fixture block I34, and the positions of the installation through groove 5, which are far away from the notch of the fixture block I34; one end of the spring 43 is fixedly connected with the fixture block II42 and is abutted against the spring abutting block 44 close to the notch of the fixture block I34; the other end of the spring 43 is fixedly connected with a spring abutting block 44 at the notch far away from the fixture block I34;

when the circuit module is used, the circuit module 22 is placed along the accommodating groove 21, the circuit module 22 is pushed along the accommodating groove 21, the circuit module 22 is stressed to drive the carrier plate 31 to move, the carrier plate 31 drives the fixture block I34 to move along the direction close to the fixture block II42, when the fixture block I34 is contacted with the fixture block II42, as the sections of the fixture block I34 and the fixture block II42 are of a mutually slope structure, when the fixture block I34 pushes the fixture block II42, the fixture block II42 is stressed to drive the sliding rod 41 to move along the direction far from the fixture block I34, at the moment, the sliding rod 41 penetrates through the notch far from the fixture block I34, and the fixture block II42 compresses the spring 43 in the moving process; meanwhile, the carrier plate 31 and the fixture block I34 continue to move towards the bottom surface of the accommodating groove 21 by the thrust from the direction of the circuit module 22 until the fixture block I34 passes through the fixture block II42, the limiting clamping groove 33 and the fixture block II42 are in the same horizontal plane, the fixture block II42 is not interfered, the spring 43 expands to drive the fixture block II42 to move along the limiting clamping groove 33 until the fixture block II enters the limiting clamping groove 33; since the limiting slot 33 is disposed on the carrier 31, the carrier 31 cannot move further, and the user stops pushing the circuit module 22;

when other circuit modules need to be replaced, the user starts the driving device 6, the driving device 6 pulls the sliding rod 41 to move in the direction away from the notch of the clamping block I34, the sliding rod 41 drives the clamping block II42 to move out of the limiting clamping groove 33, the spring 43 expands, and the carrier plate 31 is driven to pop up the circuit module 22;

specifically, one side of the installation through groove 5 is communicated with a driving installation groove 7, and the driving device 6 is installed in the driving installation groove 7; the driving device 6 comprises a pressing rod 61 and a pulley 62 fixedly connected with the pressing rod 61; one end of the sliding rod 41, which is far away from the fixture block II42, is fixedly connected with a steel rope 63, one end of the steel rope 63 is fixed on the side wall of the mounting groove 7, a wheel groove of the pulley 62 is abutted against the steel rope 63, the other end of the sliding rod 41 penetrates through the mounting groove 7 and is connected with a pressing cap 64, a pressing spring 65 is sleeved outside the sliding rod 41, one end of the pressing spring 65 is fixedly connected with the pressing cap 64, and the other end of the pressing spring is fixedly connected with the surface of the lower box body 2; two sides of the sliding rod 41 are also provided with a sliding rod limiting fixture block 69, and the lower box body 2 is provided with a clamping groove matched with the sliding rod limiting fixture block 69;

when other circuit modules 22 need to be replaced to perform other circuit experiments, the pressing cap 64 is pressed, the pressing rod 61 drives the pulley 62 to move towards the bottom of the driving installation groove 7, one end of the steel rope 63 is fixed on the side wall of the installation groove 7, then the steel rope passes through a channel 68 formed by the anti-falling arc-shaped plate 67 and the peripheral surface of the pulley 62, the pressing rod 61 is connected, the pulley 62 is abutted to drive the steel rope 63 to move in the process of moving towards the bottom of the installation groove 7, the sliding rod 41 is pulled to move in the direction away from the fixture block I34 in the moving process of the steel rope 63, the sliding rod 41 drives the fixture block II42 to move out of the limiting fixture slot 33, the spring 43 expands, and the support plate 31 is driven to lift the circuit module 22 along; at this time, the pressing cap 64 is stopped being pressed, the pressing spring 65 sleeved outside the sliding rod 41 is expanded, and the pressing rod 61 and the pulley 62 are driven to reset;

the purpose of using the pulley is: when the push rod 61 is forced to drive the pulley 62 to abut against the steel cable 63, the pulley 62 is subjected to friction of the steel cable 63, and under the action of the friction force, the pulley 62 can generate certain rotation, so that the pulley 62 is in soft contact with the steel cable 63, and the sliding rod 41 is prevented from being suddenly started to abut against the steel cable 63, and the steel cable 63 is prevented from being damaged.

Further, in order to prevent the steel cable 63 from falling off the pulley 62, in the present embodiment, a drop-off prevention device for preventing the steel cable 63 from falling off is further installed on the pulley frame 66 of the pulley 62, the drop-off prevention device is a drop-off prevention arc-shaped plate 67, two ends of the drop-off prevention arc-shaped plate 67 are fixedly installed on the pulley frame 66, the drop-off prevention arc-shaped plate 67 and the peripheral surface of the pulley 62 form a channel 68, and the steel cable 63 is placed in the channel 68; the cable 63 is movable even by external force, i.e. between the anti-slip arc 67 and the V-shaped groove of the pulley 62, i.e. in the passage 68.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The working principle is as follows:

when a circuit experiment is performed, the circuit module 22 is placed in the accommodating groove 21, the circuit module 22 is pushed along the accommodating groove 21, the circuit module 22 is stressed to drive the carrier plate 31 to move, the carrier plate 31 drives the fixture block I34 to move in the direction close to the fixture block II42, when the fixture block I34 is in contact with the fixture block II42, because the cross sections of the fixture block I34 and the fixture block II42 are of a mutually-slope structure, when the fixture block I34 pushes the fixture block II42, the fixture block II42 is stressed to drive the sliding rod 41 to move in the direction far from the fixture block I34, at the moment, the sliding rod 41 penetrates through the notch far from the fixture block I34, and the fixture block II42 compresses the spring 43 in the moving process; meanwhile, the carrier plate 31 and the fixture block I34 continue to move towards the bottom surface of the accommodating groove 21 by the thrust from the direction of the circuit module 22 until the fixture block I34 passes through the fixture block II42, the limiting clamping groove 33 and the fixture block II42 are in the same horizontal plane, the fixture block II42 is not interfered, the spring 43 expands to drive the fixture block II42 to move along the limiting clamping groove 33 until the fixture block II enters the limiting clamping groove 33; since the limiting slot 33 is disposed on the carrier 31, the carrier 31 cannot move further, and the user stops pushing the circuit module 22;

then, the circuit module 22 is connected with one end of a double-end connecting wire through a connecting terminal 23, the other end of the double-end connecting wire is connected with a connecting module 24, and further connected with the display panel 11, the power supply module and the experiment mainboard, so that a circuit simulation experiment is realized;

when other circuit modules 22 need to be replaced to perform other circuit experiments, the pressing rod 61 is pressed, the pressing rod 61 drives the pulley 62 to move towards the bottom of the driving installation groove 7, one end of the steel rope 63 is fixed on the side wall of the installation groove 7, then the steel rope passes through a channel 68 formed by the anti-falling arc-shaped plate 67 and the peripheral surface of the pulley 62, the pressing rod 61 is connected, the pulley 62 is abutted to drive the steel rope 63 to move in the process of moving towards the bottom of the installation groove 7, the sliding rod 41 is pulled to move in the direction away from the fixture block I34 in the moving process of the steel rope 63, the sliding rod 41 drives the fixture block II42 to move out of the limiting fixture slot 33, the spring 43 expands, and the support plate 31 is driven to lift the circuit module 22 along the accommodating groove 21;

at this time, the double-ended connecting wire connected to the connecting terminal 23 is removed, the circuit module 22 to be used is replaced, and the circuit module is placed in the receiving groove 21 according to the above-described procedure, and then the connecting terminal 23 of the circuit module 22 which has been replaced is connected to the double-ended connecting wire.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims (8)

1. An interchangeable modular high-frequency circuit experimental box, characterized in that; comprises an upper box body (1) and a lower box body (2) which are connected in a rotating way;

a plurality of display panels (11) are arranged in the upper box body (1); a plurality of accommodating grooves (21) are formed in the lower box body (2), circuit modules (22) are movably mounted in the accommodating grooves (21), one end, facing the upper box body (1), of each circuit module (22) is provided with a wiring terminal (23), and a wiring module (24) is arranged between every two adjacent accommodating grooves (21); the wiring terminal (23), the wiring module (24), the display panel (11), the power supply module and the experiment mainboard are electrically connected;

the lifting mechanism is installed in the accommodating groove (21) and comprises a lifting device (3) and a limiting device (4), wherein the lifting device is used for driving the circuit module (22) to move back and forth in the accommodating groove (21), and the limiting device is used for controlling the lifting device (3) to move.

2. A replaceable modular high-frequency circuit experimental box according to claim 1, characterized in that; the lifting device (3) comprises a carrier plate (31) and a lifting spring (32), one end of the lifting spring (32) is fixedly installed in the accommodating groove (21), and the other end of the lifting spring is fixedly connected with the carrier plate (31).

3. An exchangeable modular high-frequency circuit experimental box according to claim 2, characterized in that; a fixture block I (34) is mounted on the end face, facing the lifting spring (32), of the carrier plate (31), and the section of the fixture block I (34) is of a slope structure; and a limiting clamping groove (33) is formed in the carrier plate (31) along the vertical direction of the clamping block I (34).

4. A replaceable modular high-frequency circuit experimental box according to claim 3, characterized in that; and the lower box body (2) on one side of the clamping block I (34) is provided with an installation through groove (5), and the limiting device (4) is installed in the installation through groove (5).

5. An exchangeable modular high-frequency circuit experimental box according to claim 4, characterized in that; the limiting device (4) comprises a sliding rod (41) and a clamping block II (42), the section of the clamping block II (42) is of an inverse slope structure relative to the section of the clamping block I (34), and the size of the clamping block II (42) is matched with that of the limiting clamping groove (33);

one end of the sliding rod (41) is fixedly connected with the clamping block II (42), the other end of the sliding rod (41) is fixedly connected with a driving device (6) used for pulling the sliding rod (41), a spring (43) is sleeved outside the sliding rod (41), and spring abutting blocks (44) are respectively arranged at the positions of the through mounting groove (5) close to the notch of the clamping block I (34) and the notch far away from the clamping block I (34);

one end of the spring (43) is fixedly connected with the fixture block II (42) and abuts against a spring abutting block (44) close to the notch of the fixture block I (34); the other end of the spring (43) is fixedly connected with a spring abutting block (44) at the notch far away from the clamping block I (34).

6. An exchangeable modular high-frequency circuit experimental box according to claim 5, characterized in that; the installation is led to logical groove (5) one side intercommunication and is had drive mounting groove (7), drive arrangement (6) are installed in drive mounting groove (7).

7. An exchangeable modular high-frequency circuit experimental box according to claim 6, characterized in that; the driving device (6) comprises a pressing rod (61) and a pulley (62) fixedly connected with the pressing rod (61); one end of the sliding rod (41) far away from the clamping block II (42) is fixedly connected with a steel rope (63), one end of the steel rope (63) is fixed on the side wall of the mounting groove (7), a pulley groove of the pulley (62) is abutted to the steel rope (63), the other end of the sliding rod (41) penetrates through the mounting groove (7) and is connected with a pressing cap (64), a pressing spring (65) is sleeved outside the sliding rod (41), one end of the pressing spring (65) is fixedly connected with the pressing cap (64), and the other end of the pressing spring is fixedly connected with the surface of the lower box body (2).

8. An interchangeable modular high-frequency circuit experimental box according to claim 7, characterized in that; the anti-falling device is characterized in that the pulley frame (66) of the pulley (62) is further provided with an anti-falling device for preventing the steel rope (63) from falling off, the anti-falling device is an anti-falling arc-shaped plate (67), two ends of the anti-falling arc-shaped plate (67) are fixedly arranged on the pulley frame (66), a channel (68) is formed by the anti-falling arc-shaped plate (67) and the peripheral surface of the pulley (62), and the steel rope (63) is arranged in the channel (68).

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