CN216526011U

CN216526011U - Voltage measuring device for analog circuit fault diagnosis

Info

Publication number: CN216526011U
Application number: CN202122882597.5U
Authority: CN
Inventors: 吕鑫淼; 王佳绪
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-05-13
Anticipated expiration: 2031-11-23

Abstract

The utility model relates to the technical field of circuit diagnosis, in particular to a voltage measuring device for analog circuit fault diagnosis, which comprises a detection table, wherein the bottom of the detection table is fixedly connected with an underframe, the diagonal position of the top of the detection table is fixedly connected with a detection box through a support frame, an analog circuit electrifying lead is arranged on the detection table, a disconnection protection unit is arranged at the upper end of the detection table on the analog circuit electrifying lead, and a measurement clamping mechanism is arranged on the lower surface of the detection box; the measuring and clamping mechanism comprises a lifting assembly arranged in the detection box and a supporting plate connected with the lower end of the lifting assembly, a driving motor is arranged in the middle of the rear side face of the supporting plate, a driving rotating shaft is connected with an output shaft of the driving motor, the driving rotating shaft is connected with the supporting plate in a rotating mode, and a rotating plate is fixedly connected to one end of the driving rotating shaft (54), so that the safety during measurement is improved.

Description

Voltage measuring device for analog circuit fault diagnosis

Technical Field

The utility model relates to the technical field of circuit diagnosis, in particular to a voltage measuring device for analog circuit fault diagnosis.

Background

The analog circuit is widely applied to various aspects such as military industry, aerospace, communication, automatic control, measuring instruments, household appliances and the like, along with the rapid development of electronic technology, the complexity and the density of the analog circuit are continuously increased, so that the requirement on the operation reliability of the analog circuit is increasingly improved, the requirement on the operation reliability of electronic equipment is more strict, and when the analog circuit breaks down, the fault is expected to be diagnosed in time so as to be convenient to overhaul, debug and replace. For manufacturers of analog circuits and analog devices, it is more desirable to quickly diagnose faults so as to analyze the causes of the faults, improve the production process, improve the yield of the products, and shorten the time to market.

The prior circuit fault diagnosis analog device has certain hidden danger for the safety of personnel because of the sudden situation of the circuit, and meanwhile, during the voltage measurement, most of the prior circuit fault diagnosis analog device is directly operated manually, so that the safety is poor, and during the measurement, the connection and the clamping of a measurement clamp of a voltage detector and an electrified conducting wire on an analog circuit are not tight enough and are not safe enough.

SUMMERY OF THE UTILITY MODEL

In view of the defects of the prior art, the utility model provides a voltage measuring device for analog circuit fault diagnosis, which solves the problems in the background art.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a voltage measuring device for analog circuit fault diagnosis comprises a detection table, wherein the bottom of the detection table is fixedly connected with an underframe, a detection box is fixedly connected to the diagonal position of the top of the detection table through a support frame, an analog circuit power-on lead is arranged on the detection table, a disconnection protection unit is arranged at the upper end of the detection table on the analog circuit power-on lead, and a measurement clamping mechanism is arranged on the lower surface of the detection box;

the measuring and clamping mechanism comprises a lifting assembly arranged in the detection box and a supporting plate connected with the lower end of the lifting assembly, a driving motor is arranged in the middle of the rear side face of the supporting plate, a driving rotating shaft is connected with an output shaft of the driving motor, the driving rotating shaft is connected with the supporting plate in a rotating mode, and a rotating plate is fixedly connected to one end of the driving rotating shaft.

As a further technical solution of the present invention, two first rotating rods are rotatably connected to the upper end of the surface of the rotating plate, one end of each of the two first rotating rods is rotatably connected to a second rotating rod, the lower end of the rotating plate is rotatably connected to two third rotating rods, one end of each of the two third rotating rods is connected to a fourth rotating rod, the middle portions of the two second rotating rods and the two fourth rotating rods are rotatably connected to supporting rods arranged on the surface of the supporting plate, and the bottom ends of the two second rotating rods and the two fourth rotating rods are respectively connected to a contact clamp.

As a further technical scheme, the lifting assembly comprises an air cylinder fixedly mounted on the inner wall of the detection box, the bottom of the air cylinder is connected with a push rod, one end of the push rod is fixedly connected with the top of the supporting plate, and the rotating plate is rotatably connected with the supporting plate through a driving rotating shaft.

As a further technical scheme of the utility model, the four contact clamps are divided into two groups, each group comprises two contact clamps, the contact clamps are all made of conductive metal materials, and one of the contact clamps in each group is connected with a measuring lead.

As a further technical scheme of the present invention, the disconnection protection unit includes a connection block mounted on the detection table, a u-shaped groove is formed at the bottom of the connection block, a conductive post is rotatably connected in the u-shaped groove, a contact rod is fixed on the surface of the conductive post, an insulating sleeve is fixed in the middle of the surface of the contact rod, an electric push rod is fixedly connected to the lower surface of the insulating sleeve, a receiving groove is formed at the upper surface of the detection table corresponding to the bottom end of the electric push rod, and the bottom of the electric push rod is fixed at the bottom end inside the receiving groove.

As a further technical scheme of the utility model, an insulating block is arranged on the lower surface of the detection box right above one end of the contact rod, an electric block is arranged on the detection table and corresponds to the insulating block right below one end of the contact rod, the electric block and the insulating block have the same structure, grooves are formed in the electric block and the insulating block, elastic components are arranged in the grooves, and the electric block is made of a metal conductive material.

According to a further technical scheme of the utility model, the elastic component comprises two mounting grooves correspondingly formed in the inner wall of the groove, a return spring is connected inside each mounting groove, one end of each return spring is connected with a clamping block, and each clamping block is of a spherical structure.

Advantageous effects

The utility model provides a voltage measuring device for analog circuit fault diagnosis. Compared with the prior art, the method has the following beneficial effects:

(1) this analog circuit failure diagnosis's voltage measurement device, design through measuring clamping mechanism, utilize driving motor to drive the rotation of drive pivot, the drive pivot has driven first bull stick on the rotor plate, the second bull stick, third bull stick and fourth bull stick rotate, and then can realize being close to between the contact clamp that second bull stick and fourth bull stick are connected and keeping away from, can realize that two contact clamps press from both sides tightly and separate the wire, and through promotion subassembly control height, not only can improve when measuring with the contact confinement nature of wire, personnel's manual contact has been avoided in addition, safety when with this when having improved the measurement.

(2) This analog circuit fault diagnosis's voltage measurement device, through the design of disconnected protection unit, when the in-process of measuring goes wrong, break away from the contact lever of connecting block one end from the electrical property piece through the electronic plunger of control and rotate insulating block department, realize opening and the closure of the circuit that leads to among the analog circuit according to this to realize power-off protection's purpose, thereby very big improvement the security when measuring, avoided the possibility that personnel do not in time discover the problem simultaneously.

Drawings

FIG. 1 is an external perspective view of the present invention;

FIG. 2 is a perspective view of the measuring jaw of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1 according to the present invention;

fig. 4 is an exploded view of the elastic member of the present invention.

In the figure: 1. a detection table; 2. a chassis; 3. a support frame; 4. a detection box; 5. a measuring and clamping mechanism; 51. A drive motor; 52. a support plate; 53. a lifting assembly; 53-1, cylinder; 53-2, push rod; 54. driving the rotating shaft; 55. a rotating plate; 56. a first rotating lever; 57. a second rotating rod; 58. a strut; 59. a contact clip; 510. a third rotating rod; 511. a fourth rotating rod; 6. a disconnection protection unit; 61. connecting blocks; 62. an electrical block; 63. an insulating block; 64. a contact lever; 65. an elastic component; 66. an insulating sleeve; 67. an electric push rod; 68. a conductive post; 65-1, a return spring; 65-2, a fixture block; 65-3 and an installation groove.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a voltage measuring device for analog circuit fault diagnosis comprises a detection table 1, wherein the bottom of the detection table 1 is fixedly connected with a bottom frame 2, the diagonal position of the top of the detection table 1 is fixedly connected with a detection box 4 through a support frame 3, an analog circuit electrifying lead is arranged on the detection table 1, a disconnection protection unit 6 is arranged on the analog circuit electrifying lead at the upper end of the detection table 1, and a measurement clamping mechanism 5 is arranged on the lower surface of the detection box 4;

as shown in fig. 2, the measuring and clamping mechanism 5 comprises a lifting assembly 53 installed in the detection box 4 and a supporting plate 52 connected to the lower end of the lifting assembly 53, a driving motor 51 is disposed at the middle of the rear side of the supporting plate 52, an output shaft of the driving motor 51 is connected with a driving rotating shaft 54, the driving rotating shaft 54 is rotatably connected to the supporting plate 52, one end of the driving rotating shaft 54 is fixedly connected with a rotating plate 55, the upper end of the surface of the rotating plate 55 is rotatably connected with two first rotating rods 56, one end of each of the two first rotating rods 56 is rotatably connected with a second rotating rod 57, the lower end of the rotating plate 55 is rotatably connected with two third rotating rods 510, one end of each of the two third rotating rods 510 is connected with a fourth rotating rod 511, the middle portions of the two second rotating rods 57 and the two fourth rotating rods 511 are rotatably connected with a supporting rod 58 disposed on the surface of the supporting plate 52, the bottom ends of the two second rotating rods 57 and the two fourth rotating rods 511 are connected with a contact clamp 59, the four contact clamps 59 are divided into two groups, each group includes two, as shown in fig. 2, the contact clamp 59 connected to one of the second rotating rods 57 and the contact clamp 59 connected to one of the fourth rotating rods 511 together form a scissors clamp holder, which facilitates the measurement and clamping of the voltage of the wires in the analog circuit, and the contact clamps 59 are made of conductive metal, and one of the contact clamps 59 in each group is connected with a measurement wire, which is a measurement wire of a voltage detector, i.e., it is illustrated that the two groups of contact clamps 59 are respectively connected with two measurement wires of the voltage detector, and the voltage detector is arranged in the detection box 4, which facilitates the operation;

as shown in fig. 2, the lifting assembly 53 comprises an air cylinder 53-1 fixedly mounted on the inner wall of the detection box 4, the bottom of the air cylinder 53-1 is connected with a push rod 53-2, one end of the push rod 53-2 is fixedly connected with the top of the support plate 52, the rotating plate 55 is rotatably connected with the support plate 52 through a driving rotating shaft 54, the lifting assembly 53 facilitates the adjustment of the height of the support plate 52, and further facilitates the driving contact clamp 59 to clamp and measure the electrified lead on the analog circuit;

as shown in fig. 3, the disconnection protection unit 6 includes a connection block 61 mounted on the test platform 1, the bottom of the connection block 61 is provided with a u-shaped groove, the u-shaped groove is rotatably connected with a conductive post 68, the surface of the conductive post 68 is fixed with a contact rod 64, the surface middle part of the contact rod 64 is fixed with an insulating sleeve 66, the lower surface of the insulating sleeve 66 is fixedly connected with an electric push rod 67, the upper surface of the test platform 1 is provided with a receiving groove corresponding to the bottom end of the electric push rod 67, the bottom of the electric push rod 67 is fixed at the bottom end of the receiving groove, the contact rod 64 can be pushed to rise upwards or fall downwards by controlling the electric push rod 67, so as to control the contact rod 64 to be connected with the electric block 62 or the insulating block 63, referring to fig. 3, it should be noted that the conductive post 68 is connected with one of the current conducting wires on the analog circuit, the electric block 62 is also connected with the current conducting wire, the power-on wire on the analog circuit can be closed or opened through the power-off protection unit 6;

as shown in fig. 3 and 4, an insulating block 63 is mounted on the lower surface of the detection box 4 directly above one end of the contact rod 64, an electrical block 62 is disposed on the detection table 1 and corresponds to the lower position of the one end of the contact rod 64, the electrical block 62 is disposed on the detection table 1, the electrical block 62 and the insulating block 63 have the same structure, the electrical block 62 and the insulating block 63 are both provided with a groove, an elastic component 65 is disposed in each groove, the electrical block 62 is made of a metal conductive material, the elastic component 65 includes two mounting grooves 65-3 corresponding to the inner wall of the groove, a return spring 65-1 is connected in each mounting groove 65-3, one end of the return spring 65-1 is connected with a clamping block 65-2, the clamping block 65-2 is a spherical structure, the clamping block 65-2 on the elastic component 65 is designed to be spherical, so that when the contact rod 64 is clamped with the electrical block 62 or the insulating block 63, can be better and more conveniently clamped into the grooves of the electric blocks 62 or the insulating blocks 63.

The working principle of the utility model is as follows: when the device is used, firstly, the air cylinder 53-1 is started, the air cylinder 53-1 is utilized to drive the push rod 53-2 to move downwards, the supporting plate 52 is further controlled to move downwards, the contact clamp 59 is conveniently moved to an electrified lead needing to be detected on an analog circuit, meanwhile, the driving motor 51 is started to rotate in the forward direction, the driving motor 51 is utilized to drive the driving rotating shaft 54 to rotate, the driving rotating shaft 54 drives the rotating plate 55 to rotate, the rotating plate 55 drives the first rotating rod 56 and the second rotating rod 57 to rotate, at the moment, the second rotating rod 57 rotates by taking the supporting rod 58 as the center, similarly, the third rotating rod 510 and the fourth rotating rod 511 also rotate to drive the second rotating rod 57 and the fourth rotating rod 511 to approach each other, the contact clamp 59 connected with the second rotating rod 57 and the fourth rotating rod 511 is further separated, the electrified lead is conveniently clamped, when the contact clamp is clamped, the driving motor 51 rotates reversely, and the second rotating rod 57 and the fourth rotating rod 511 are further separated, the contact clamps 59 connected with the two contact clamps are close to each other, the electrified lead is clamped (before detection, the contact part of the electrified lead and the contact clamps 59 is free of insulation protection, so that the electrified detection is convenient), and after the electrified lead is clamped, the measurement lead and the voltage detector connected with the two groups of contact clamps 59 can start to work, so that the voltage measurement is realized;

through setting up the measuring clamping mechanism 5, not only can improve the contact confinement nature with the wire when measuring, and avoided personnel's manual contact, safety when so improving the measurement, when emergency takes place, can control electric putter 67 to rise, upwards ejecting contact rod 64, make the one end of contact rod 64 rotate to insulating block 63 from electric block 62, and carry out spacing joint to it through reset spring 65-1 and fixture block 65-2, when convenient in the measuring process goes wrong, in time break away from the contact rod 64 of connecting block 61 one end and change insulating block 63 department from electric block 62, thereby come the power-on circuit in the disconnection analog circuit, with this purpose that realizes the power-off protection, thereby very big improvement the security when measuring, avoided personnel not in time to discover the possibility of problem simultaneously.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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. The utility model provides a voltage measurement device of analog circuit fault diagnosis, is including examining test table (1), the bottom fixedly connected with chassis (2) of examining test table (1), examine the diagonal angle department at test table (1) top and pass through support frame (3) fixedly connected with detection case (4), its characterized in that: an analog circuit electrifying lead is arranged on the detection table (1), an off-connection protection unit (6) is arranged at the upper end of the detection table (1) on the analog circuit electrifying lead, and a measuring clamping mechanism (5) is arranged on the lower surface of the detection box (4);

measure clamping mechanism (5) including installing in lift subassembly (53) and the backup pad (52) that lift subassembly (53) lower extreme is connected in detection case (4), the trailing flank middle part of backup pad (52) is provided with driving motor (51), driving motor (51) output shaft has drive pivot (54), drive pivot (54) are connected for rotating with backup pad (52), the one end fixedly connected with rotor plate (55) of drive pivot (54).

2. The voltage measurement device for analog circuit fault diagnosis according to claim 1, wherein: the surperficial upper end of rotor plate (55) is rotated and is connected with two first bull stick (56), two the one end of first bull stick (56) is all rotated and is connected with second bull stick (57), the lower extreme of rotor plate (55) is rotated and is connected with two third bull stick (510), two the one end of third bull stick (510) all is connected with fourth bull stick (511), two second bull stick (57) and two the middle part of fourth bull stick (511) is all rotated and is connected with branch (58) that set up in backup pad (52) surface, two second bull stick (57) and two the bottom of fourth bull stick (511) all is connected with the contact and presss from both sides (59).

3. The voltage measurement device for analog circuit fault diagnosis according to claim 1, wherein: the lifting assembly (53) comprises an air cylinder (53-1) fixedly mounted on the inner wall of the detection box (4), the bottom of the air cylinder (53-1) is connected with a push rod (53-2), one end of the push rod (53-2) is fixedly connected with the top of the supporting plate (52), and the rotating plate (55) is rotatably connected with the supporting plate (52) through a driving rotating shaft (54).

4. The voltage measurement device for analog circuit fault diagnosis according to claim 2, wherein: the four contact clamps (59) are divided into two groups, each group is two, the contact clamps (59) are all made of conductive metal materials, and one of the contact clamps (59) in each group is connected with a measuring lead.

5. The voltage measurement device for analog circuit fault diagnosis according to claim 1, wherein: the disconnection protection unit (6) comprises a connecting block (61) arranged on the detection table (1), the bottom of the connecting block (61) is provided with a U-shaped groove, a conductive column (68) is rotationally connected in the U-shaped groove, a contact rod (64) is fixed on the surface of the conductive column (68), an insulating sleeve (66) is fixed in the middle of the surface of the contact rod (64), the lower surface of the insulating sleeve (66) is fixedly connected with an electric push rod (67), the upper surface of the detection table (1) is provided with a storage groove corresponding to the bottom end of the electric push rod (67), and the bottom of the electric push rod (67) is fixed at the bottom end of the storage groove.

6. The voltage measurement device for analog circuit fault diagnosis according to claim 5, wherein: the utility model discloses a detection table, including contact pole (64), position under the one end and be provided with insulating block (62) on detection case (4), the one end of contact pole (64) is directly over the lower surface that is located detection case (4) and is installed insulating block (63), and just the one end position under corresponds insulating block (63) and is located and is provided with electric property piece (62) on detection table (1), the structure of electric property piece (62) and insulating block (63) is the same, all set up flutedly on electric property piece (62) and insulating block (63), and the inside of recess all is provided with elastic component (65), electric property piece (62) are the metal conducting material.

7. The voltage measurement device for analog circuit fault diagnosis according to claim 6, wherein: the elastic component (65) comprises two mounting grooves (65-3) which are correspondingly formed in the inner wall of the groove, a return spring (65-1) is connected inside the mounting groove (65-3), one end of the return spring (65-1) is connected with a clamping block (65-2), and the clamping block (65-2) is of a spherical structure.