CN212031572U

CN212031572U - Portable voltage monitor

Info

Publication number: CN212031572U
Application number: CN202020125084.2U
Authority: CN
Inventors: 余春申
Original assignee: Ningbo Jianlong Electronics Co ltd
Current assignee: Ningbo Jianlong Electronics Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-11-27
Anticipated expiration: 2030-01-19

Abstract

The utility model relates to a portable voltage monitor, which comprises a bottom cover, an electric connecting pin and a pin pressing plate arranged at the inner side of the bottom cover, wherein a rotating column is integrally arranged on an insulating part of the electric connecting pin; the bottom cover is provided with a ground foot adjusting station and a power supply adjusting station; the ground foot adjusting station comprises a first mounting block, a first placing groove which is arranged in the first mounting block in a penetrating mode and is used for accommodating the power connection pins is formed in the bottom cover, a first opening used for installing the power connection pins is formed in one side, far away from the bottom cover, of the first mounting block, and the rotating column abuts against the first opening; the power supply adjusting station comprises a second mounting block, a second placing groove which is arranged in the second mounting block in a penetrating mode and is used for accommodating the power connection pins is formed in the bottom cover, a second penetrating groove is formed in one side, far away from the bottom cover, of the second mounting block, and the rotating column abuts against the second penetrating groove; the pin pressing plate is used for keeping the rotating column and the first mounting block and the rotating column and the second mounting block to be mutually abutted. The utility model discloses have the effect that can accomodate the tripod plug.

Description

Portable voltage monitor

Technical Field

The utility model belongs to the technical field of voltage detection equipment's technique and specifically relates to a portable voltage monitor is related to.

Background

The voltage monitor is a statistical voltage monitor which continuously monitors and counts voltage deviation caused by slow change of a normal operation state of a power system. The system has the functions of monitoring, analyzing, memorizing, inquiring, parameter setting and the like.

The existing voltage monitor usually has an extended three-pin plug, the three-pin plug includes three power connection pins, it is used for directly inserting on the three-phase socket, a commonly used power connection pin is as shown in fig. 1, it includes insulating part 41, set up in inserted sheet 42 of insulating part 41 one end and set up in the contact 43 of insulating part 41 other end, inserted sheet 42 and contact 43 are in the inside integrative setting of insulating part 41, its material is copper or brass nickel plating, insulating part 41 adopts insulating plastics injection moulding, and with inserted sheet 42 and contact 43 fixed connection, contact 43 is used for being connected mutually to the inside circuit board of voltage monitor, inserted sheet 42 is arranged in inserting the three-phase socket, it not only can be used for detecting the commercial power, can also fix through the mode of inserting on the three-phase socket.

The above prior art solutions have the following drawbacks: due to the arrangement of the three-pin plug, the three-pin plug can occupy a large space in the transportation process, and the whole structure is uneven, so that the voltage monitor is inconvenient to stack.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a portable voltage monitor that tripod plug can accomodate not enough to prior art exists.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a portable voltage monitor comprises a bottom cover, three electric connecting pins and a pin pressing plate arranged on the inner side of the bottom cover, wherein rotating columns are integrally arranged on the insulating part of the electric connecting pins and positioned on two sides in the extending direction;

the bottom cover is provided with a ground pin adjusting station and two power supply adjusting stations, wherein the three power connection pins are respectively arranged on the ground pin adjusting station and the two power supply adjusting stations are symmetrical relative to the ground pin adjusting station;

the ground pin adjusting station comprises a first mounting block arranged on the inner side of a bottom cover, a first placing groove which is arranged in the first mounting block in a penetrating mode and is used for accommodating a power connecting pin is arranged on the bottom cover, a first opening used for installing the power connecting pin is formed in one side, far away from the bottom cover, of the first mounting block, and the rotating column abuts against the first opening;

the power supply adjusting station comprises a second mounting block arranged on the inner side of the bottom cover, a second placing groove which is arranged in the second mounting block in a penetrating mode and is used for accommodating the power connection pins is formed in the bottom cover, a second penetrating groove is formed in one side, far away from the bottom cover, of the second mounting block, and the rotating column abuts against the second penetrating groove;

the pin pressing plate is used for keeping the rotating column and the first mounting block and the rotating column and the second mounting block to be mutually abutted.

Through adopting above-mentioned technical scheme, connect in the electricity participate in wearing to establish out the bottom through the inboard of bottom, and because be provided with the setting of participating in the clamp plate of reason cooperation of rotation post, it is spacing to connect the electric pin, make connect the electricity to participate in unable and bottom break away from, and through setting up the reason that connects the rotation post on participating in, make connect the electricity to participate in and can take place to rotate for rotating the post, when needs use, it makes to connect the electricity to participate in and connects the electricity to participate in and stretch out outside the bottom to rotate, when need not use, it participates in to rotate to connect the electricity, make three connect the electricity to participate in and be located first standing groove and second standing groove respectively, see from the outside of bottom, whole voltage monitoring appearance is more level and more smooth, at pile voltage monitoring appearance's in-.

The present invention may be further configured in a preferred embodiment as: the first opening is provided with a first rotating groove for the rotating column to penetrate through, and the second penetrating groove is provided with a second rotating groove for the rotating column to penetrate through;

the pin pressing plate comprises a pin pressing plate, a first pressing block and second pressing blocks, wherein the first pressing block is integrally arranged on the pin pressing plate, the second pressing blocks are symmetrically arranged on two sides of the first pressing block, the first pressing block is arranged in the first opening in a penetrating mode, and a first accommodating groove for accommodating the electric plug pin and a first pressing groove for accommodating the rotating column are formed in the first pressing block;

the second pressing block is provided with a second positioning block penetrating through the second penetrating groove, the second pressing groove for the rotating column to penetrate through is integrally formed in the second positioning block, and a second accommodating groove for accommodating the power plug pin is formed in the second positioning block.

Through adopting above-mentioned technical scheme, through the setting that first rotation groove and second rotate the groove to and the setting of first indent and second indent, make the rotation orbit to the post of rotating carry on spacingly, improved the fixed stability who connects electric pin.

The present invention may be further configured in a preferred embodiment as: the one end an organic whole that the insulating part was kept away from to the rotation post that connects electric pin is provided with spacing piece, spacing piece and the outside looks butt of first installation piece in the lower margin regulation station, spacing piece and the outside looks butt of second installation piece in the power supply regulation station.

Through adopting above-mentioned technical scheme, the setting of spacing piece has further improved the fixed stability who connects electric participating in, avoids connecting electric participating in the emergence along the drunkenness of rotating post axis direction, has improved holistic structural strength.

The present invention may be further configured in a preferred embodiment as: first positioning columns are integrally arranged on the bottom cover and positioned on two sides of the two power supply adjusting stations, first fixing holes opposite to the first positioning columns are formed in the foot pressing plate, and bolts are in threaded connection with the first positioning columns after passing through the first fixing holes;

the center that just is located two power supply regulation stations and lower margin regulation station on the bottom cover is integrative to be provided with the second reference column, be provided with the second fixed orifices relative with the second reference column on the pressure foot board, the bolt passes through behind the second fixed orifices with second reference column threaded connection.

Through adopting above-mentioned technical scheme, first reference column and second reference column have been fixed participating in the clamp plate with bolt threaded connection's mode respectively, and bolt fastening's mode structural strength is high simultaneously, and convenient the dismantlement can guarantee to participate in the clamp plate and can not take place to break away from with the bottom to improved the fixed firmness to the electric mortiser foot, improved holistic structural strength.

The present invention may be further configured in a preferred embodiment as: and a positioning pipe sleeved on the first positioning column is integrally arranged on the foot pressing plate and positioned at the first fixing hole.

Through adopting above-mentioned technical scheme, the setting of registration arm is inserted the clamp plate and is carried out the preinstallation, and the bolt is beaten to convenient follow-up, avoids taking place to rock in the installation, improves the packaging efficiency.

The present invention may be further configured in a preferred embodiment as: still include to limit the seat, limit the seat including the cover locate the outer briquetting portion of first briquetting, set up installation department on first installation piece and connect the transition portion between briquetting portion and the installation department, the downside an organic whole of briquetting portion is provided with a plurality of spacing posts with the mutual butt of first briquetting.

Through adopting above-mentioned technical scheme, the setting of spacing seat has carried out further spacingly between to first briquetting and the first installation piece, avoids first briquetting to take place skew and drunkenness for first installation piece, has improved the sticising effect of participating in the clamp plate, and the setting of spacing post has improved the area of contact between spacing seat and the first briquetting simultaneously, has improved the joint strength between spacing seat and the first briquetting.

The present invention may be further configured in a preferred embodiment as: the limiting sheet is circumferentially provided with four positioning surfaces, and the limiting column is abutted to the positioning surfaces on the limiting sheet.

Through adopting above-mentioned technical scheme, through the mode of spacing post and the mutual butt of locating surface, come to connect the electric mortiser foot to carry out spacingly, only rotate to connect the electric mortiser foot to make spacing post receive external force to take place when deformation when hard, connect the electric mortiser foot and just can continue to rotate, improved and connect the electric mortiser foot and use and accomodate the stability of in-process.

The present invention may be further configured in a preferred embodiment as: the bottom cover is provided with a first installation block, the bottom cover is provided with a second installation block, the first installation block is provided with a first installation pin, the first installation block is provided with a contact piece, the contact piece is arranged along the extension direction of the first installation block, one end of the contact piece is arranged at the first opening, and when the power connection pin rotates to stretch out of the bottom cover, the contact piece is abutted to the contact piece.

Through adopting above-mentioned technical scheme, when connecing the electric pin and rotate to stretching out in the bottom, contact and contact piece butt each other for during electric current can follow the contact piece access internal circuit, compare with the direct welding wire on the contact, this kind of connected mode life is longer.

The present invention may be further configured in a preferred embodiment as: the contact sheet is arranged on one side of the first opening and bent to form an overlapping part towards one side far away from the mounting block.

Through adopting above-mentioned technical scheme, when connecing the electric pin and stretching out in the bottom, contact and the mutual butt of contact piece, the contact piece is through the effect of contact to the one side bending of pressing the sole and form sunkenly, and the one end that the contact piece is located first holding tank is spacing owing to the setting of overlap portion for when contact and contact piece contact, the contact piece is owing to there is the trend of recovering original state and applys the power of perpendicular to pressing the sole to the contact, increase the pressure between rotation post and the first installation piece through this kind of mode, thereby increase the frictional force between rotation post and the first installation piece.

The present invention may be further configured in a preferred embodiment as: the outside of bottom just is located first standing groove and second standing groove department and all is provided with the arc sunken.

Through adopting above-mentioned technical scheme, the sunken convenient to use person of setting up of arc directly will connect the electric pin to roll out from first standing groove and second standing groove by bare-handed, has improved assembly efficiency.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the power connection pins can rotate relative to the rotation columns due to the rotation columns arranged on the power connection pins, when the power connection pins are required to be used, the power connection pins extend out of the bottom cover, and when the power connection pins are not required to be used, the power connection pins are rotated to enable the three power connection pins to be respectively positioned in the first placing groove and the second placing groove;

2. the arrangement of the limiting seat further limits the position between the first pressing block and the first mounting block, the first pressing block is prevented from deviating and moving relative to the first mounting block, the pressing effect of the pin pressing plate is improved, meanwhile, the arrangement of the limiting column improves the contact area between the limiting seat and the first pressing block, the connection strength between the limiting seat and the first pressing block is improved, meanwhile, the electric pins are limited in a mode that the limiting column arranged on the limiting seat is abutted against the positioning surface, only when the electric pins are rotated forcibly to enable the limiting column to be deformed by external force, the electric pins can continue to rotate, and the stability of the electric pins in the using and accommodating processes is improved;

3. the sunken setting up of arc person of facilitating the use directly will connect the electricity to participate in the commentaries on classics out from first standing groove and second standing groove by bare-handed, has improved assembly efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a conventional electrical connector pin.

Fig. 2 is a schematic structural view of the voltage detector.

Fig. 3 is an exploded view of the voltage detector.

Fig. 4 is a schematic structural diagram of the voltage monitor with the pin protecting cover removed.

Fig. 5 is a schematic view of the structure of the contact pin.

Fig. 6 is an enlarged schematic view of a portion a in fig. 3.

Figure 7 is a schematic diagram of the pin press plate construction.

Fig. 8 is a partial structural schematic view of the first mounting block, the second mounting block, the power receiving pin, and the contact piece.

Fig. 9 is a schematic view of the structure in which the power receiving pin is located in the first placement groove.

Fig. 10 is a schematic structural view of the bottom case with the electrical plug inserted therein.

FIG. 11 is a schematic view of a partial structure of the voltage detector.

Fig. 12 is a schematic structural view of the electrical connector pins, the retainer and the pin press plate.

Fig. 13 is a schematic structural view of the stopper seat.

In the figure, 1, an upper cover; 2. a bottom cover; 21. a settling tank; 22. a first positioning post; 23. a second positioning column; 3. a three-pin plug mechanism; 31. a contact pad; 311. fixing a column; 312. positioning holes; 313. an overlapping portion; 32. the pin pressing plate; 321. a foot pressing plate; 3211. a first fixing hole; 3212. a second fixing hole; 3213. a positioning tube; 322. a first pressing block; 3221. a first accommodating groove; 3222. a first indent; 3223. a first reinforcing block; 3224. positioning the mounting block; 323. a second pressing block; 3231. a second positioning block; 3232. a second press groove; 3233. a second accommodating groove; 3234. a second reinforcing block; 33. a pin protecting cover; 331. perforating; 34. a ground foot adjusting station; 341. a first mounting block; 342. a first placing groove; 343. a first opening; 344. a first rotating groove; 35. a power supply adjusting station; 351. a second mounting block; 352. a second placing groove; 353. a second opening; 354. a second through groove; 355. a second rotating groove; 4. connecting the electric pins; 41. a rim portion; 42. inserting sheets; 43. a contact piece; 44. rotating the column; 45. a limiting sheet; 46. positioning the surface; 5. a limiting seat; 51. a briquetting section; 52. an installation part; 53. a transition section; 511. a third fixing hole; 54. a limiting column; 6. the arc is sunken.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2, for the utility model discloses a portable voltage detector, including upper cover 1 and bottom 2, upper cover 1 forms the shell with the fixed formation of 2 mutual joints of bottom, is provided with tripod plug mechanism 3 that is used for connecting the three-phase socket on bottom 2, and tripod plug mechanism 3 can rotate and hide in bottom 2.

Referring to fig. 3 and 4, the three-pin plug mechanism 3 includes a power connection pin 4, a contact piece 31, a pin pressing plate 32 and a pin protecting cover 33, the bottom cover 2 is provided with a settling tank 21, the pin protecting cover 33 is fixed on the bottom cover 2 at the position of the settling tank 21 in a clamping manner, the pin protecting cover 33 is provided with a through hole 331 for the power connection pin 4 to pass through, the bottom cover 2 is provided with a pin adjusting station 34 for the power connection pin 4 and a power supply adjusting station 35 symmetrical to the pin adjusting station 34.

Referring to fig. 5, the contact pin 4 includes an insulating portion 41, an insert 42 disposed at one end of the insulating portion 41, and a contact 43 disposed at the other end of the insulating portion 41, the insert 42 and the contact 43 are integrally disposed inside the insulating portion 41, and are made of nickel-plated copper or brass, the insulating portion 41 is injection-molded by insulating plastic, and is fixedly connected to the insert 42 and the contact 43.

The both sides of insulating part 41 all integrated into one piece have rotation post 44, rotate post 44 and be eccentric settings on insulating part 41, and rotate post 44 and contact 43 on the collinear, rotate one side an organic whole that insulating part 41 was kept away from to post 44 and be provided with spacing piece 45, spacing piece 45 is circumference and is provided with four locating surfaces 46, and one side that insulating part 41 faced contact 43 sets up to circular-arcly.

Referring to fig. 5 and 6, the foot adjusting station 34 includes a first mounting block 341 integrally disposed inside the bottom cover 2, a first placing groove 342 penetrating through the first mounting block 341 and accommodating the power plug pins 4 is disposed at the bottom of the bottom cover 2 and located in the settling tank 21, a first opening 343 for installing the power plug pins 4 and communicating with the first placing groove 342 is disposed at one side of the first mounting block 341 away from the bottom cover 2, a first rotating groove 344 for allowing the rotating column 44 to penetrate is disposed on the first opening 343, and the limiting piece 45 abuts against the outside of the first mounting block 341.

The power supply adjusting station 35 includes a second mounting block 351 integrally arranged on the inner side of the bottom cover 2, a second placing groove 352 penetrating through the second mounting block 351 and accommodating the power connection pins 4 is arranged at the bottom of the settling tank 21 on the bottom cover 2, a second opening 353 is arranged on one side of the second mounting block 351 far away from the bottom cover 2, a second penetrating groove 354 allowing the power connection pins 4 to be mounted and communicating with the second placing groove 352 is arranged on the second opening 353, a second rotating groove 355 allowing the rotating column 44 to penetrate is arranged on the second penetrating groove 354, and the limiting piece 45 is abutted to the outer side of the second mounting block 351.

Referring to fig. 6 and 7, the pin pressing plate 32 includes a pressing plate 321, a first pressing block 322 integrally disposed on the pressing plate 321, and second pressing blocks 323 symmetrically disposed on two sides of the first pressing block 322, the first pressing block 322 is disposed in the first opening 343, the first pressing block 322 is provided with a first receiving groove 3221 for receiving the electric plug pin 4 and a first pressing groove 3222 for receiving the rotating column 44, and the first pressing block 322 is integrally provided with a first reinforcing block 3223 abutted against the first mounting block 341.

The second pressing block 323 is inserted into the second opening 353, the second pressing block 323 is integrally provided with a second positioning block 3231 inserted into the second insertion groove 354, the second positioning block 3231 is provided with a second pressing groove 3232 for the rotation column 44 to be inserted, the second pressing block 323 and the second positioning block 3231 are both provided with a second accommodating groove 3233 for accommodating the power connection pins 4, and the second pressing block 323 is integrally provided with a second reinforcing block 3234 abutted against the second mounting block 351.

Referring to fig. 3 and 8, the first mounting block 341 and the second mounting block 351 are both provided with a contact piece 31 at an end away from the bottom cover 2, the mounting manners of the contact pieces 31 are the same, taking the first mounting block 341 as an example, two fixing columns 311 are arranged at an interval at an end of the first mounting block 341 away from the bottom cover 2, the contact piece 31 is provided with a positioning hole 312 for the fixing column 311 to penetrate through, the contact piece 31 is arranged along the extending direction of the first mounting block 341, and one end of the contact piece 31 is arranged at the first opening 343.

Referring to fig. 9, the contact piece 31 is bent to form an overlapping portion 313 on a side away from the mounting block, the first receiving groove 3221 is recessed toward a side of the foot pressing plate 321 to allow the overlapping portion 313 of the contact piece 31 to pass through, and the overlapping portion 313 of the contact piece 31 and the foot pressing plate 321 are abutted to each other.

Referring to fig. 9 and 10, when the power contact pin 4 is accommodated in the first accommodation groove 342 in a lying state, the contact piece 31 and the insulating portion 41 abut against each other; when the contact pin 4 extends out of the first accommodating groove 342, the contact piece 43 and the contact piece 31 are abutted against each other, the contact piece 31 is bent to one side of the pressing foot plate 321 to form a recess by the action of the contact piece 43, and one end of the contact piece 31 located in the first accommodating groove 3221 is limited by the arrangement of the overlapping portion 313, so that when the contact piece 43 is in contact with the contact piece 31, the contact piece 31 exerts a force perpendicular to the pressing foot plate 321 to the contact piece 43 due to the tendency of returning to the original state, and in this way, the pressure between the rotating column 44 and the first mounting block 341 is increased, so that the friction force between the rotating column 44 and the first mounting block 341 is increased.

Referring to fig. 6 and 7, the bottom cover 2 and the two sides of the two power supply adjusting stations 35 are integrally provided with a first positioning column 22, the foot pressing plate 321 is provided with a first fixing hole 3211 opposite to the first positioning column 22, the bolt is in threaded connection with the first positioning column 22 through the first fixing hole 3211, and the foot pressing plate 321 is initially positioned in this way.

A second positioning column 23 is integrally arranged at the centers of the two power supply adjusting stations 35 and the ground foot adjusting station 34 on the bottom cover 2, a second fixing hole 3212 opposite to the second positioning column 23 is formed in the foot pressing plate 321, and the bolt is in threaded connection with the second positioning column 23 after passing through the second fixing hole 3212.

In order to facilitate the pre-installation, a positioning tube 3213 sleeved on the first positioning column 22 is integrally disposed on the foot pressing plate 321 and located at the first fixing hole 3211.

The power supply adjusting station 35 is limited after the pin press plate 32 is fixed by the first positioning column 22 and the second positioning column 23, but the ground pin adjusting station 34 is limited only by the second positioning column 23, so that the first press block 322 is easily deviated and moved relative to the first mounting block 341.

In order to solve the problem, as shown in fig. 11 and 12, the positioning device further includes a limiting seat 5, the limiting seat 5 includes a pressing part 51 sleeved outside the first pressing part 322, an installation part 52 disposed on the first installation block 341 and abutting against the first reinforcing block 3223, and a transition part 53 connecting the pressing part 51 and the installation part 52, and the first reinforcing block 3223 is integrally provided with a positioning installation block 3224 disposed on the upper side of the installation part 52.

Referring to fig. 13, the pressing block 51 is provided with a third fixing hole 511 through which the second positioning post 23 passes.

Referring to fig. 11 and 12, in order to further improve the fixing effect, a plurality of stopper posts 54 abutting against the first presser 322 are integrally provided on the lower side of the presser part 51.

It should be noted that the limiting column 54 is also in contact with the positioning surfaces 46 of the limiting pieces 45 on the plurality of stations respectively in sequence, the electric plug pins 4 are further limited by contacting the positioning surfaces 46, and only when the electric plug pins 4 are rotated forcibly to deform the limiting column 54 under the action of external force, the electric plug pins 4 can continue to rotate.

Referring to fig. 4, in order to facilitate the turning-out of the power receiving pins 4 from the first and

second placement grooves

342 and 352, arc-shaped recesses 6 communicating with each other are provided on the bottom cover 2 at the first and

second placement grooves

342 and 352.

The implementation principle of the embodiment is as follows:

when the three-pin plug is required to be used, firstly, the pin protecting cover 33 is detached from the bottom cover 2;

secondly, a hand or a tool is put into the arc-shaped groove, and the power connection pin 4 is rotated forcibly, so that the power connection pin 4 is rotated out from the first placing groove 342 and the second placing groove 352;

finally, when the power receiving pins 4 are rotated to be perpendicular to the bottom cover 2, the pin protection cover 33 is re-fastened to the bottom cover 2, and the three power receiving pins 4 are respectively inserted through the through holes 331.

When the triangular plug needs to be stored, firstly, the pin protecting cover 33 is detached from the bottom cover 2;

secondly, the power-on pin 4 is rotated by force, so that the power-on pin 4 is rotated into the first placing groove 342 and the second placing groove 352;

finally, the pin protecting cover 33 is re-clamped and fixed on the bottom cover 2.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a portable voltage monitor, includes bottom cover (2) and three connect electric pin (4), its characterized in that: the socket is characterized by further comprising a pin pressing plate (32) arranged on the inner side of the bottom cover (2), wherein rotating columns (44) are integrally arranged on the two sides of the insulating part (41) of the electric pin (4) in the extending direction;

the bottom cover (2) is provided with a foot margin adjusting station (34) and two power supply adjusting stations (35), wherein the three power connection pins (4) are respectively arranged on the foot margin adjusting station (34), and the power supply adjusting stations (35) are symmetrical relative to the foot margin adjusting station (34);

the ground foot adjusting station (34) comprises a first mounting block (341) arranged on the inner side of the bottom cover (2), a first placing groove (342) which is arranged in the first mounting block (341) in a penetrating mode and is used for accommodating the power connecting pins (4) is formed in the bottom cover (2), a first opening (343) used for mounting the power connecting pins (4) is formed in one side, away from the bottom cover (2), of the first mounting block (341), and the rotating column (44) abuts against the first opening (343);

the power supply adjusting station (35) comprises a second mounting block (351) arranged on the inner side of the bottom cover (2), a second placing groove (352) which is arranged in the second mounting block (351) in a penetrating mode and used for accommodating the power connection pins (4) is formed in the bottom cover (2), a second penetrating groove (354) is formed in one side, far away from the bottom cover (2), of the second mounting block (351), and the rotating column (44) abuts against the second penetrating groove (354);

the pin pressing plate (32) is used for keeping the rotating column (44) and the first mounting block (341) and the rotating column (44) and the second mounting block (351) in mutual abutting joint.

2. The portable voltage monitor of claim 1, wherein: a first rotating groove (344) for the rotating column (44) to penetrate through is formed in the first opening (343), and a second rotating groove (355) for the rotating column (44) to penetrate through is formed in the second penetrating groove (354);

the pin pressing plate (32) comprises a pressing plate (321), a first pressing block (322) integrally arranged on the pressing plate (321) and second pressing blocks (323) symmetrically arranged on two sides of the first pressing block (322), the first pressing block (322) penetrates through the first opening (343), and a first accommodating groove (3221) for accommodating the electric plug pin (4) and a first pressing groove (3222) for accommodating the rotating column (44) are formed in the first pressing block (322);

the second pressing block (323) is provided with a second positioning block (3231) penetrating through the second penetrating groove (354), the second positioning block (3231) is integrally provided with a second pressing groove (3232) for the rotating column (44) to penetrate through, and the second positioning block (3231) is provided with a second accommodating groove (3233) for accommodating the power connecting plug pin (4).

3. The portable voltage monitor of claim 2, wherein: the one end that the rotation post (44) of connecing electric pin (4) is kept away from insulating part (41) is integrative to be provided with spacing piece (45), spacing piece (45) in lower margin regulation station (34) and the outside looks butt of first installation piece (341), spacing piece (45) in power supply regulation station (35) and the outside looks butt of second installation piece (351).

4. The portable voltage monitor of claim 3, wherein: first positioning columns (22) are integrally arranged on the bottom cover (2) and located on two sides of the two power supply adjusting stations (35), first fixing holes (3211) opposite to the first positioning columns (22) are formed in the foot pressing plates (321), and bolts are in threaded connection with the first positioning columns (22) after passing through the first fixing holes (3211);

the bottom cover (2) is provided with a second positioning column (23) integrally at the centers of the two power supply adjusting stations (35) and the ground foot adjusting stations (34), a second fixing hole (3212) opposite to the second positioning column (23) is formed in the foot pressing plate (321), and a bolt is in threaded connection with the second positioning column (23) after passing through the second fixing hole (3212).

5. The portable voltage monitor of claim 4, wherein: the foot pressing plate (321) is integrally provided with a positioning pipe (3213) which is sleeved on the first positioning column (22) and is positioned at the first fixing hole (3211).

6. The portable voltage monitor of claim 5, wherein: still include spacing seat (5), spacing seat (5) are including overlapping briquetting portion (51) of locating outside first briquetting (322), setting up installation department (52) on first installation piece (341) and connecting transition portion (53) between briquetting portion (51) and installation department (52), the downside an organic whole of briquetting portion (51) is provided with spacing post (54) of a plurality of and first briquetting (322) mutual butt.

7. The portable voltage monitor of claim 6, wherein: the limiting sheet (45) is circumferentially provided with four positioning surfaces (46), and the limiting column (54) is abutted to the positioning surfaces (46) on the limiting sheet (45).

8. The portable voltage monitor of claim 7, wherein: one end, far away from the bottom cover (2), of the first mounting block (341) is provided with a contact piece (31), the contact piece (31) is arranged along the extending direction of the first mounting block (341), one end of the contact piece (31) is arranged at the first opening (343), and when the power connection pin (4) rotates to extend out of the bottom cover (2), the contact piece (31) and the contact piece (43) are mutually abutted.

9. The portable voltage monitor of claim 8, wherein: the contact sheet (31) is arranged on one side of the first opening (343) and is bent to form an overlapping part (313) towards the side far away from the mounting block.

10. The portable voltage monitor of claim 9, wherein: arc-shaped recesses (6) are formed in the outer side of the bottom cover (2) and located at the first placing groove (342) and the second placing groove (352).