CN218866853U

CN218866853U - Portable voltage transformer

Info

Publication number: CN218866853U
Application number: CN202320176859.2U
Authority: CN
Inventors: 姜超; 姜树强; 陈双喜; 姜耀武; 刘建军
Original assignee: Xiangtan Hunan Electric Appliance Co ltd
Current assignee: Xiangtan Hunan Electric Appliance Co ltd
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-04-14
Anticipated expiration: 2033-02-10

Abstract

The utility model discloses a portable voltage transformer, which comprises a voltage transformer base and a lifting mechanism; a voltage transformer base: an iron core is arranged in the voltage transformer base, a primary winding is fixedly wound at the lower end of the iron core, a secondary winding is fixedly wound at the upper end of the iron core, an insulating porcelain sleeve is arranged in the middle of the upper surface of the voltage transformer base, a sleeve is arranged in the insulating porcelain sleeve, a high-voltage lead wire is arranged in the sleeve, the lower end of the high-voltage lead wire is communicated with the secondary winding, and the upper end of the high-voltage lead wire is communicated with a joint arranged at the upper end of the insulating porcelain sleeve; a lifting mechanism: including fixing bolt and carry and draw the frame, fixing bolt respectively with the screw threaded connection of voltage transformer base opening inner wall setting, this portable voltage transformer makes things convenient for carrying of voltage transformer, the lifting of still being convenient for when follow-up voltage transformer installs, because the collision leads to damaging when avoiding voltage transformer to carry simultaneously, carries safelyr.

Description

Portable voltage transformer

Technical Field

The utility model relates to a voltage transformer technical field specifically is a portable voltage transformer.

Background

The voltage transformer is an instrument for transforming voltage, and the voltage transformer transforms voltage, and is mainly used for supplying power to a measuring instrument and a relay protection device, and is used for measuring voltage, power and electric energy of a line, or protecting valuable equipment, a motor and a transformer in the line when the line breaks down, so the capacity of the voltage transformer is very small, generally only a few volt-ampere and dozens of volt-ampere, and not more than one thousand volt-ampere, and because the weight of the voltage transformer is relatively large, when the voltage transformer is carried and transported, the voltage transformer generally needs to be carried by a cart or other tools, the voltage transformer is not convenient to carry, and when the voltage transformer is carried and transported, the voltage transformer is easy to be damaged after colliding with the volt-ampere, and therefore, a portable voltage transformer is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a portable voltage transformer, make things convenient for carrying of voltage transformer, lifting by crane when still being convenient for follow-up voltage transformer installation, because the collision leads to damaging when avoiding voltage transformer to carry simultaneously, carry safelyr, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a portable voltage transformer comprises a voltage transformer base and a lifting mechanism;

a voltage transformer base: an iron core is arranged in the voltage transformer base, a primary winding is fixedly wound at the lower end of the iron core, a secondary winding is fixedly wound at the upper end of the iron core, an insulating porcelain sleeve is arranged in the middle of the upper surface of the voltage transformer base, a sleeve is arranged in the insulating porcelain sleeve, a high-voltage lead-out wire is arranged in the sleeve, the lower end of the high-voltage lead-out wire is communicated with the secondary winding, and the upper end of the high-voltage lead-out wire is communicated with a connector arranged at the upper end of the insulating porcelain sleeve;

a lifting mechanism: including fixing bolt and carry and draw the frame, fixing bolt respectively with the screw threaded connection that voltage transformer base opening inner wall set up, carry the round hole of drawing the frame lower extreme and rotate with the fixing bolt that the homonymy corresponds respectively and be connected, carry and draw the frame and set up for bilateral symmetry, make things convenient for carrying of voltage transformer, lifting by crane when still being convenient for follow-up voltage transformer installation, because the collision leads to damaging when avoiding voltage transformer to carry simultaneously, carry safelyr.

Further, the protective nets are symmetrically arranged on the front and back of the outer side face of the lifting frame, the protective rods are evenly arranged between the front inner wall and the back inner wall of the lifting frame, damage caused by collision when the voltage transformer is carried is avoided, and carrying is safer.

Further, the T-shaped limiting frames are symmetrically arranged in the front and back of the middle of the upper surface of the voltage transformer base, threaded holes are symmetrically formed in the upper ends of the T-shaped limiting frames, the lower end of the protective net is fixedly installed with the T-shaped limiting frames corresponding to the same side through limiting bolts, and the protective net can be limited and fixed.

Further, still include first H type frame and second H type frame, first H type frame rotates to be connected in left pull-up frame upper end, and second H type frame rotates to be connected in the pull-up frame upper end on right side, connects through coupling assembling between first H type frame and the second H type frame, makes things convenient for voltage transformer's carrying.

Further, coupling assembling includes plug, square pole, double-screw bolt and interior thread bush, interior thread bush rotates to be connected in the upper end opening part of second H type frame, and equal sliding connection has the square pole in the square hole that symmetry set up around the second H type frame upper end, and the relative inboard end of nature of two square poles all is equipped with the double-screw bolt, and two double-screw bolts all with interior thread bush threaded connection, the outside end that keeps away from mutually of two square poles all is equipped with the plug, the upper end longitudinal symmetry of first H type frame be equipped with plug complex jack, make things convenient for the connection of first H type frame and second H type frame.

Furthermore, the thread directions of the front end and the rear end of the inner wall of the internal thread sleeve are opposite, so that the two studs can synchronously and reversely move.

Furthermore, the four corners of the bottom end of the voltage transformer base are uniformly provided with fixing holes, so that the voltage transformer base is convenient to fix and install.

Compared with the prior art, the beneficial effects of the utility model are that: this portable voltage transformer has following benefit:

1. the lifting frame rotates by taking the fixing bolt as a center, so that the two lifting frames are perpendicular to the voltage transformer base, the protective net on the outer side surface of the lifting frame is fixed to the T-shaped limiting frame corresponding to the same side by using the limiting bolt, then the internal thread sleeve on the upper end of the second H-shaped frame is rotated, two studs in threaded connection with the internal thread sleeve are driven to move synchronously back to back, meanwhile, the two square rods slide back to back, the plug at the end head outside the square rod is inserted into the jack correspondingly arranged at the upper end of the first H-shaped frame, connection of the first H-shaped frame and the second H-shaped frame is facilitated, the voltage transformer base can be lifted by the internal thread sleeve and the lifting frame at the moment, carrying of the voltage transformer is facilitated, and lifting during installation of a follow-up voltage transformer is facilitated.

2. The protective net and the protective rod can play a protective role on the voltage transformer, and the voltage transformer is prevented from being damaged due to collision when being carried, so that the voltage transformer is safer to carry.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal cross-sectional structure of the present invention;

fig. 3 is a schematic view of a partial sectional structure of the connection assembly of the present invention.

In the figure: the transformer comprises a voltage transformer base 1, an iron core 101, a primary winding 102, a secondary winding 103, a pulling mechanism 2, a fixing bolt 21, a pulling frame 22, a first H-shaped frame 221, a second H-shaped frame 222, a connecting assembly 3, a plug 31, a square rod 32, a stud 33, an internal thread sleeve 34, an insulating porcelain sleeve 4, a sleeve 41, a protective net 5, a protective rod 6, a limiting frame 7T, a limiting bolt 8, a fixing hole 9 and a high-voltage lead-out wire 10.

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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present embodiment provides a technical solution: a portable voltage transformer comprises a voltage transformer base 1 and a lifting mechanism 2;

voltage transformer base 1: an iron core 101 is arranged in the voltage transformer base 1, a primary winding 102 is fixedly wound at the lower end of the iron core 101, a secondary winding 103 is fixedly wound at the upper end of the iron core 101, an insulating porcelain bushing 4 is arranged in the middle of the upper surface of the voltage transformer base 1, a sleeve 41 is arranged in the insulating porcelain bushing 4, a high-voltage outgoing line 10 is arranged in the sleeve 41, the lower end of the high-voltage outgoing line 10 is communicated with the secondary winding 103, the upper end of the high-voltage outgoing line 10 is communicated with a connector arranged at the upper end of the insulating porcelain bushing 4, an external high-voltage circuit is electrically connected with the high-voltage outgoing line 10 through the connector arranged at the upper end of the insulating porcelain bushing 4, the sleeve 41 and the insulating porcelain bushing 4 can play a role in protecting the high-voltage outgoing line 10, the number of turns of the primary winding 102 at the lower end of the iron core 101 is smaller than that of the secondary winding 103 at the upper end of the iron core 101, and the electromagnetic induction is used for reducing the high voltage introduced from the outside, so as to protect external measuring elements, fixing holes 9 are uniformly arranged at four corners of the bottom end of the voltage transformer base 1, and the voltage transformer base is convenient for fixing and mounting;

the lifting mechanism 2: the protective device comprises a fixing bolt 21 and a lifting frame 22, wherein the fixing bolt 21 is respectively in threaded connection with a threaded hole arranged on the inner wall of an opening of a voltage transformer base 1, round holes at the lower end of the lifting frame 22 are respectively in rotary connection with the fixing bolts 21 corresponding to the same side, the lifting frame 22 is arranged in bilateral symmetry, protective nets 5 are symmetrically arranged on the outer side surfaces of the lifting frame 22 in the front-back direction, protective rods 6 are uniformly arranged between the front inner wall and the rear inner wall of the lifting frame 22, the protective effect on the voltage transformer can be achieved, the voltage transformer is prevented from being damaged due to collision during carrying, the carrying is safer, threaded holes are symmetrically arranged at the upper ends of T-shaped limiting frames 7,T type limiting frames 7 symmetrically arranged in the front-back direction on the middle part of the upper surface of the voltage transformer base 1, the lower ends of the protective nets 5 are respectively fixedly installed with the T-shaped limiting frames 7 corresponding to the same side through the limiting bolts 8, and the protective nets 5 and the lifting frame 22 are convenient to limit and fix, the connecting assembly 3 comprises a plug 31, square rods 32, studs 33 and an internal thread sleeve 34, the internal thread sleeve 34 is rotatably connected to an opening at the upper end of the second H-shaped frame 222, the square holes symmetrically arranged in the front and back of the upper end of the second H-shaped frame 222 are respectively connected with the square rods 32 in a sliding manner, the studs 33 are arranged at opposite inner side ends of the two square rods 32, the two studs 33 are respectively in threaded connection with the internal thread sleeve 34, the plug 31 is arranged at the end heads of the two square rods 32 opposite to the outer side, the plug 31 is arranged at the upper end of the first H-shaped frame 221, the insertion holes matched with the plug 31 are symmetrically arranged in the front and back of the upper end of the first H-shaped frame 221, and the thread directions of the front end and the back end of the inner wall of the internal thread sleeve 34 are opposite, the lifting frame 22 is rotated by taking the fixing bolt 21 as a center, so that the two lifting frames 22 are perpendicular to the voltage transformer base 1, at the moment, the protective net 5 on the outer side surface of the lifting frame 22 is fixed with the T-shaped limiting frame 7 corresponding to the same side by using the limiting bolt 8, then the internal thread sleeve 34 on the upper end of the second H-shaped frame 222 is rotated, because the thread directions of the front end and the rear end inside the internal thread sleeve 34 are opposite, and the square rod 32 is connected with the square hole on the upper end of the second H-shaped frame 222 in a sliding manner, the internal thread sleeve 34 is rotated to drive the two studs 33 in threaded connection with the internal thread sleeve 34 to synchronously move back to back, and meanwhile, the two square rods 32 slide back to back until the plug 31 at the end of the outer side of the square rod 32 is inserted into the corresponding insertion hole on the upper end of the first H-shaped frame 221, so that the first H-shaped frame 221 and the second H-shaped frame 222 are conveniently connected, at the moment, the voltage transformer base 1 can be lifted by the internal thread sleeve 34 and the lifting frame 22, so that the voltage transformer base 1 is conveniently carried, and the subsequent voltage transformer is also conveniently lifted.

The utility model provides a pair of portable voltage transformer's theory of operation as follows: the lifting frame 22 is rotated by taking the fixing bolt 21 as a center, so that the two lifting frames 22 are both perpendicular to the voltage transformer base 1, at the moment, the protective net 5 on the outer side surface of the lifting frame 22 is fixed with the T-shaped limiting frame 7 corresponding to the same side by using the limiting bolt 8, then the internal thread sleeve 34 on the upper end of the second H-shaped frame 222 is rotated, as the thread directions of the front end and the rear end inside the internal thread sleeve 34 are opposite, and the square rod 32 is connected with the square hole on the upper end of the second H-shaped frame 222 in a sliding manner, the internal thread sleeve 34 is rotated to drive the two studs 33 in threaded connection with the internal thread sleeve 34 to synchronously move back to back and forth, and meanwhile, the two square rods 32 slide back to back until the plug 31 at the end of the outer side of the square rod 32 is inserted into the corresponding insertion hole on the upper end of the first H-shaped frame 221, so as to facilitate the connection of the first H-shaped frame 221 and the second H-shaped frame 222, can lift up voltage transformer base 1 through internal thread cover 34 and carry and draw frame 22 this moment, make things convenient for voltage transformer's carrying, lift by crane when still being convenient for follow-up voltage transformer installation simultaneously, protection network 5 and protective rod 6 can play the guard action to voltage transformer, lead to damaging because the collision when avoiding voltage transformer to carry, it is safer to carry, outside high-voltage circuit is connected with high-voltage lead-out wire 10 electricity through the joint of insulating porcelain bushing 4 upper end, sleeve 41 and insulating porcelain bushing 4 can play the guard action to high-voltage lead-out wire 10, because the primary winding 102 number of turns of iron core 101 lower extreme is less than secondary winding 103 of iron core 101 upper end, utilize electromagnetic induction to play the step-down effect to the high voltage of outside introduction, thereby play the guard action to outside measuring element.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A portable voltage transformer, its characterized in that: comprises a voltage transformer base (1) and a lifting mechanism (2);

voltage transformer base (1): an iron core (101) is arranged in the transformer, a primary winding (102) is fixedly wound at the lower end of the iron core (101), a secondary winding (103) is fixedly wound at the upper end of the iron core (101), an insulating porcelain bushing (4) is arranged in the middle of the upper surface of a voltage transformer base (1), a sleeve (41) is arranged in the insulating porcelain bushing (4), a high-voltage lead-out wire (10) is arranged in the sleeve (41), the lower end of the high-voltage lead-out wire (10) is communicated with the secondary winding (103), and the upper end of the high-voltage lead-out wire (10) is communicated with a joint arranged at the upper end of the insulating porcelain bushing (4);

a lifting mechanism (2): the lifting frame comprises a fixing bolt (21) and a lifting frame (22), wherein the fixing bolt (21) is in threaded connection with a screw hole formed in the inner wall of an opening of a voltage transformer base (1), a round hole in the lower end of the lifting frame (22) is in rotary connection with the fixing bolt (21) corresponding to the same side, and the lifting frame (22) is arranged in a bilateral symmetry manner.

2. A portable voltage transformer according to claim 1, characterized in that: protective nets (5) are symmetrically arranged on the front and back of the outer side surfaces of the lifting frame (22), and protective rods (6) are uniformly arranged between the front inner wall and the back inner wall of the lifting frame (22).

3. A portable voltage transformer according to claim 2, characterized in that: the voltage transformer base (1) upper surface middle part front and back symmetry is provided with spacing (7) of T type, and the upper end of spacing (7) of T type all symmetry is equipped with the screw hole, and the lower extreme of protection network (5) is respectively through spacing bolt (8) and the spacing (7) fixed mounting of T type that the homonymy corresponds.

4. A portable voltage transformer according to claim 1, characterized in that: the lifting device is characterized by further comprising a first H-shaped frame (221) and a second H-shaped frame (222), wherein the first H-shaped frame (221) is rotatably connected to the upper end of the left lifting frame (22), the second H-shaped frame (222) is rotatably connected to the upper end of the right lifting frame (22), and the first H-shaped frame (221) and the second H-shaped frame (222) are connected through a connecting assembly (3).

5. The portable voltage transformer of claim 4, wherein: coupling assembling (3) are including plug (31), square pole (32), double-screw bolt (33) and internal thread cover (34), internal thread cover (34) are rotated and are connected in the upper end opening part of second H type frame (222), equal sliding connection has square pole (32) in the square hole that second H type frame (222) upper end longitudinal symmetry set up, the relative inboard end of nature of two square poles (32) all is equipped with double-screw bolt (33), two double-screw bolts (33) all with internal thread cover (34) threaded connection, the outside end that is kept away from mutually of two square poles (32) all is equipped with plug (31), the upper end longitudinal symmetry of first H type frame (221) is equipped with plug (31) complex jack.

6. The portable voltage transformer of claim 5, wherein: the thread directions of the front end and the rear end of the inner wall of the internal thread sleeve (34) are opposite.

7. A portable voltage transformer according to claim 1, characterized in that: four corners of the bottom end of the voltage transformer base (1) are uniformly provided with fixing holes (9).