CN103296600B - A kind of Covered transformer - Google Patents

Abstract

The invention discloses an underground transformer which solves the problems of poor heat dissipation, easy water accumulation in the pit and anti-theft cover plate, which comprises a pit, a transformer installed in the pit, and an aboveground part located at the upper end of the pit. The above-ground part includes ventilation windows and cover plate components; the ventilation windows include windows installed on the upper end of the wall of the pit and surrounded by front and rear side frames and left and right side frames; the front and rear side frames are respectively covered by Separated into several front and rear window frames, the left and right frames are divided into several left and right window frames respectively, each front and rear window frames and each left and right window frames are respectively installed with stainless steel wire mesh panels and shutters; the cover plate components include left and right Flip cover, cover plate anti-drop mechanism and an anti-theft lock. The left flip is connected to the upper end of the left frame through several anti-theft hinges, and the right flip is connected to the upper end of the right frame through several anti-theft hinges; the cover anti-drop mechanism includes two left supports and two right supports; the anti-theft lock includes a shackle seat, two shackles and a padlock.

Description

A buried transformer

technical field

The invention relates to an underground transformer.

Background technique

The buried transformer is installed in the basement or cellar, which can advocate green power and optimize the urban environment. It is suitable for streets, highways, bridges, tunnels, parking lots, and is suitable for lighting and power systems in urban environments, airports, ports, tourist attractions, etc., especially Suitable for densely populated central cities. The buried transformer is divided into an above-ground part and an underground part, and its body is installed in a pit constructed of concrete without occupying surface space. The cover of the buried transformer is equipped with high-voltage casing and low-voltage terminals, high-voltage load switch and backup fuse, plug-in lightning arrester, pressure relief valve, vacuum pressure gauge, temperature control and oil level indicator. These accessories can be found in Observe and operate on the ground. The oil tank is made of stainless steel, with a fully sealed structure and a closed welded structure along the tank to minimize the sealing area, and can operate safely for a long time in the special environment in the ground.

However, the buried transformer has not completely solved the safety problem at the upper end of the pit, so it has been greatly affected in the transformation of the urban power grid into the ground.

Contents of the invention

The purpose of the present invention is to overcome the defects of the prior art and provide a buried transformer, which solves the problems of poor heat dissipation, easy water accumulation in the pit and anti-theft cover, and creates favorable conditions for the transformation of urban power grids into the ground.

The technical solution for achieving the above purpose is: a buried transformer, comprising a rectangular cubic pit with the upper part exposed to the ground and an open upper end, a transformer installed in the pit, and an aboveground part located at the upper end of the pit; the aboveground part includes Ventilation window and cover plate parts; the ventilation window includes a window installed on the outer side of the upper end surface of the wall of the pit, and the window is surrounded by front and rear side frames and left and right side frames, The front and rear side frames are respectively divided into several front and rear window frames, and the left and right side frames are respectively divided into several left and right window frames, and each front and rear window frame and each left and right window frame are respectively installed one inside and one outside A stainless steel wire mesh plate and shutters; the cover plate components include left and right flip covers, a cover plate anti-drop mechanism and an anti-theft lock, wherein the left end of the left flip cover is connected to the left side of the left frame through a number of anti-theft hinges The upper end, the right end of the right flip cover is connected to the upper end of the right side frame through several anti-theft hinges, so that the left and right flip covers can be closed oppositely or opened in reverse; the cover anti-drop mechanism includes two left Support piece and two right support pieces, one end of two left support pieces is installed on the near front and rear end of the lower end surface of described left cover one by one, and the other end of these two left support pieces is installed on one by one On the inner side near the right end of the front side frame and the rear side frame, one end of the two right support members is installed on the near front and rear ends of the lower end surface of the right flip cover one by one. The other head is installed on the inner side near the left end of the front side frame and the rear side frame in one-to-one correspondence; The same and corresponding to the lock seat, the lock buckle installed on the lower end surface of the left flip cover and the lower end surface of the right flip cover in one-to-one correspondence and a padlock passing through the lock buckle seat and the lock buckle.

The above-mentioned buried transformer, wherein, the anti-theft hinge includes a first leaf, a pin shaft seat, a pin shaft, a second leaf, a pin hole seat and a pin hole; the first leaf is fixed on the right side The upper end surface of the frame or the upper end surface of the left side frame; the length of the pin shaft seat is 1/2 of the length of the first leaf and is arranged on one side of the first leaf; the pin The shaft is arranged on the inner end face of the pin seat and is parallel to one side of the first sheet, so that the pin seat and the pin shaft are located on the outer side of the upper end face of the right side frame or on the left side frame The outer side of the upper end surface; the second sheet is fixed on the left lower end surface of the left cover or the right lower end of the right cover; the length of the pin hole seat is the length of the second sheet One-half is arranged on one side of the second sheet; the pin hole is opened on the inner end surface of the pin hole seat and is parallel to the side of the second sheet, the pin hole Fitting with the pin shaft and being a blind hole, the first leaf and the second leaf are pivotally connected together in a manner that the pin shaft is rotatably inserted in the pin hole and rotate around the pin shaft.

The above-mentioned buried transformer, wherein, both the left support and the right support are gas springs.

The above-mentioned buried transformer, wherein, the window is composed of four corner columns, two transverse beams and two longitudinal beams connected to the upper ends of the two diagonal columns; the front and rear window frames and left and right window frames are respectively composed of several The middle column between the four corner columns is divided into.

The above-mentioned buried transformer, wherein, the cover plate component further includes a cover plate support mechanism, and the cover plate support mechanism includes a plurality of parts respectively connected to the upper inner surface of the left side frame and the right side frame through connecting pieces at intervals. The horizontal strut between the upper inner side and a longitudinal strut bridged between the center of the upper inner side of the front side frame and the center of the upper inner side of the rear side frame through the connecting piece.

In the above-mentioned buried transformer, wherein, the longitudinal brace is made of a channel steel, and a drainage pipe communicating with the longitudinal brace is installed outside the rear side frame.

In the above-mentioned buried transformer, wherein, the connecting piece includes a trough-shaped piece and two mounting pieces respectively connected to the rear ends of both sides of the trough-shaped piece.

In the above-mentioned buried transformer, wherein, the above-ground part further includes a wall waterproof opening arranged along the inner side of the upper end surface of the wall of the pit and integrally formed with the wall of the pit.

The above-mentioned buried transformer, wherein, the left and right flaps are made of FRP extruded profiles and surrounded by stainless steel; the windows and shutters are made of plastic wood; the anti-theft hinges, lock seats and locks All made of stainless steel.

The above-mentioned buried transformer, wherein, the lateral braces are made of plastic wood.

In the technical solution of the buried transformer of the present invention, ventilation windows are firstly installed on the ground, and louvers and screen panels are installed on the ventilation, so that the heat emitted by the transformer can be effectively dissipated, and the IP level of the buried transformer can be guaranteed. to 34; secondly, a waterproof port is set on the inner side of the upper end surface of the wall of the pit and a water receiving tank is set at the butt joint gap between the left flip and the right flip, which can resist rainwater from intruding into the pit; a cover plate support mechanism and a cover plate anti-corrosion The drop mechanism and the support of the cover support mechanism can play a supporting role when the left flip and the right flip are closed, and it is easy to disassemble and assemble, which is convenient for lifting in and out of the transformer. The anti-drop mechanism of the cover plate can prevent the left flip cover and the right flip cover from falling down and closing when they are opened, thus effectively protecting the personal safety of the operator. In addition, anti-theft hinges and anti-theft locks are set on the cover, which can prevent criminals from disassembling with a screwdriver when the left and right flips are closed, effectively playing the role of anti-theft, and it can create favorable conditions for the transformation of urban power grids into the ground.

Description of drawings

Fig. 1 is the structural representation of buried transformer of the present invention;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the structural representation of the wall waterproof port of the buried transformer of the present invention;

Fig. 4 is the structure diagram when the cover plate of buried transformer of the present invention is opened;

Fig. 5 is a structural schematic diagram of the first leaf in the cover hinge of the buried transformer of the present invention;

Fig. 6 is a schematic structural view of the second leaf in the cover hinge of the buried transformer of the present invention;

Fig. 7 is a schematic structural view of the connectors in the cover support mechanism of the buried transformer of the present invention;

Fig. 8 is a structural schematic diagram of the cover plate anti-theft lock of the buried transformer of the present invention;

Fig. 9 is a structural schematic diagram of the lock seat in the cover plate anti-theft lock of the buried transformer of the present invention;

Fig. 10 is a schematic structural diagram of the latch in the cover anti-theft lock of the buried transformer according to the present invention.

detailed description

In order to enable those skilled in the art to better understand the technical solution of the present invention, its specific implementation will be described in detail below in conjunction with the accompanying drawings:

Please refer to FIGS. 1 to 10 , the buried transformer of the present invention includes a rectangular cuboid pit 10 with the upper part exposed to the ground 20 and an open upper end, a transformer installed in the pit 10 and an aboveground part located at the upper end of the pit 10 . The above-ground part includes ventilation windows and cover plate parts 3 .

A wall waterproof opening 40 (see FIG. 3 ) is provided along the inner side of the upper end surface of the wall of the pit 10 . The wall waterproof opening 40 has a height and a width of 50 mm and is integrally formed with the wall of the pit 10 .

The wall waterproof port 40 can be reserved during the wall construction of the pit 10, which can resist rainwater from invading the pit from the outside of the upper end surface of the pit, so as to prevent the inside of the pit from accumulating water.

Ventilation window comprises the window form 2 that is installed on the outer side of the wall upper end face of pit 10, and this window form 2 is made of plastic wood material and is made up of front side frame 21, back side frame 22, left side frame 23 and right side frame 24, the front and rear side frames 21, 22 are respectively divided into several front and rear window frames 25, and the left and right side frames 23, 24 are respectively divided into several left and right window frames 26, wherein,

The front side frame 21 is composed of left and right front corner columns 210, 210' and a front transverse beam 220 connected between the left and right front corner columns 210, 210';

The rear side frame 22 is composed of left and right rear corner columns 220, 220' and a rear transverse beam 220' connected between the left and right rear corner columns 230, 230';

The front and rear window frames 25 are divided into intermediate columns 250 arranged between the left and right front corner columns 210, 210' and the left and right rear corner columns 230, 230' at consistent intervals;

The left frame 23 is composed of a left front corner column 210, a left rear corner column 230 and a left longitudinal beam 240 connected between the left front corner column 210 and the left rear corner column 230;

Right side frame 24 is made of right front corner column 210', right rear corner column 230' and a right longitudinal beam 240' connected between right front corner column 210' and right rear corner column 230';

The left and right window frames 26 are formed by a number of intermediate pillars 250' that are uniformly arranged at intervals between the left front corner pillar 210, the left rear corner pillar 230 and the right front corner pillar 210' and the right rear corner pillar 230'.

Each front and rear sash 25 and each left and right sash 26 respectively install a stainless steel wire mesh plate and shutters one inside and one outside. The shutters are made of plastic wood material.

The louver can strengthen the air circulation, has a good heat dissipation effect, and can effectively dissipate the heat from the transformer. The stainless steel wire mesh plate can prevent foreign objects from invading the pit, and ensure that the IP rating of the buried transformer reaches 34.

The cover plate component 3 includes left and right flip covers 31 , 32 , a cover plate anti-drop mechanism, a cover plate support mechanism and a cover plate anti-theft lock 7 .

The left end of the left flip 31 is connected to the upper end of the left side frame 23 by three anti-theft hinges 6, and the right end of the right flip 32 is connected to the upper end of the right side frame 24 by three anti-theft hinges 6, so that the left and right flips 31, 32 can face each other. close or open in reverse. The left and right flaps 31, 32 are made of fiberglass extruded profiles and surrounded by stainless steel.

The anti-theft hinge 6 is made of stainless steel and includes a first leaf 61, a pin seat 611 and a pin 612 arranged on the first leaf 61, a second leaf 62 and a pin hole seat arranged on the second leaf 62 621 and pin hole 622 (see Figures 5 and 6), wherein,

The first sheet 61 is fixed on the upper end surface of the right frame 24 or the upper end surface of the left frame 23;

The length of the pin seat 611 is 1/2 of the length of the first leaf 61 and is arranged on one side of the first leaf 61;

Bearing pin 612 is located at the inner end surface of bearing pin seat 611 and is parallel to a side of the first leaf 61, and the length of this bearing bearing 612 is less than 1/2nd of the length of first leaf 61, makes bearing pin seat 611 and the pin shaft 612 are located on the outside of the upper end surface of the right side frame 24 or the outside of the upper end surface of the left side frame 23;

The second sheet 62 is fixed on the lower end surface of the left end of the left cover plate 31 or the lower end surface of the right end of the right cover plate 32;

The length of the pin hole seat 621 is 1/2 of the length of the second sheet 62 and is arranged on one side of the second sheet 62;

The pin hole 622 is provided on the inner end face of the pin hole seat 621 and is parallel to a side of the second sheet 62, and the pin hole 622 is adapted to the pin shaft 612 and is a blind hole, so that the first sheet 61 and the second sheet 62 The blades 62 are pivotally connected together in a manner that the pin shaft 612 is rotatably inserted in the pin hole 622 and rotate around the pin shaft 612,

The anti-theft hinge 6 prevents the pin shaft 612 from being exposed after being inserted in the pin hole 622, which completely eliminates the possibility of the pin shaft 612 being knocked out, and theft will not occur because the hinge is destroyed.

In a preferred embodiment, the other side of the first sheet 61 has a 90° folded edge 610, and mounting holes are respectively provided on the surface of the first sheet 61 and the folded edge, so that the first sheet 61 61 is clamped between the upper end surface and the inner surface of the right frame 24 or between the upper end surface and the inner surface of the left frame 23, so that the first sheet 61 will not be displaced, so that the left flip cover 31 and the right cover plate 32 When closed, the screwdriver can be used to prevent disassembly of the two blades, which effectively plays an anti-theft role.

The cover plate anti-drop mechanism includes two left support members 41 and two right support members 42, wherein,

One ends of the two left support members 41 are installed on the front and rear ends of the lower end surface of the left cover plate 31 in one-to-one correspondence, and the other ends of the two left support members 41 are installed on the front side frame 21 and the rear side in one-to-one correspondence. on the inner side of the frame 22 near the right end;

One ends of the two right support members 42 are installed on the front and rear ends of the lower end surface of the right cover plate 32 in one-to-one correspondence, and the other ends of the two right support members 42 are installed in the front side frame 21 and the rear side in one-to-one correspondence. The inner side of the frame 22 near the left end.

Both the left support 41 and the right support are gas springs.

The anti-drop mechanism of the cover plate can stably and reliably prevent the left flip cover 31 and the right flip cover 32 from falling down and closing when they are opened, thus effectively protecting the personal safety of the operator.

The cover support mechanism includes two transverse braces 51 and one longitudinal brace 52 (see Figure 7), wherein the two transverse braces 51 are respectively connected to the upper inner surface of the left side frame 23 and Between the upper inner side of the right side frame 24, the transverse brace 51 is made of plastic-wood material; Between the center of the side; the longitudinal support 52 adopts channel steel as a water receiving tank, which can resist rainwater from entering the pit 10 from the butt joint of the two flaps, effectively avoiding the internal water accumulation of the pit 10, and in the rear side frame The outside of 22 is installed a drainpipe 7 that is communicated with longitudinal brace 52, to discharge the accumulated water in the channel steel.

The connector 50 includes a grooved piece 501 and two mounting pieces 502 respectively connected to the rear ends of both sides of the grooved piece 501 (see FIG. 7 ). Three mounting holes are provided on the two mounting pieces 502 respectively; And connecting piece 50 all adopts stainless steel to make.

The connecting piece 50 is fixed on the center of the upper inner surface of the front side frame 21 and the center of the upper inner surface of the rear side frame 22 by screws, as long as the two ends of the longitudinal brace 52 are rested on the grooved piece of the connecting piece 50, that is The installation of the longitudinal braces 52 can be completed. In addition, the installation positions of the two transverse braces 51 are corresponding to the upper inner side of the left frame 23, the upper inner side of the right frame 24, and the left and right sides of the longitudinal braces 52. The connectors 50 are installed respectively, and the two transverse braces 51 can be composed of two and a half sections respectively. One section and a half spans between the upper inner side of the left frame 23 and the left side of the longitudinal brace 52, and the other half spans between the upper inner side of the right frame 24 and the right side of the longitudinal brace 52. Between them, it can play an effective support when the left flip cover 31 and the right flip cover 32 are closed. When the transformer in pit 10 needs to be hoisted in and out, do not just can take out two transverse braces 51 and a longitudinal brace 52 easily with any tool.

The cover plate anti-theft lock 7 (see Fig. 8 to Fig. 10) is made of stainless steel and includes a buckle seat 71, two buckles 72, 72' and a padlock (not shown in the figure), wherein,

Lock seat 71 comprises a base plate 711 and a clamping plate 712 and is T-shaped structure, offers some installation holes on the base plate 711, offers a keyhole on the clamping plate 712 and is vertically fixed on the center of base plate 711; Lock seat 71 is installed in by screw the center of the outer side of the rear side frame 22;

The structures of the two lock catches 72 are identical and symmetrical. Each lock catch 72 includes a right-angle plate 721 and a plywood 722. A keyhole is also provided on the plywood 722 and connected to one end of the right-angle plate 721; The horizontal plane of the rectangular plate 721 is welded to the lower end surface of the left flip 31 and the lower end of the right flip 32 with the lock seat 71 as the center of symmetry. When the left flip 31 and the right flip 32 are closed, the left flip 31 is closed. The plywood on the plywood and the plywood on the right flip cover 32 are located in parallel on both sides of the splint 712 of the buckle seat 71 and the keyhole is coaxial with the keyhole on the buckle seat 71, and the vertical plane of the right-angled plate on the left flip cover 71 and The vertical surface of the right-angle plate on the right flip cover 32 is parallel to the front side of the bottom plate 711 of the lock seat 71;

The padlock connects the buckle seat 71 and two buckles 72, 72' together when the left flip cover 31 and the right flip cover 32 are closed.

Anti-theft lock 7 is when left flip cover 31 and right cover plate 32 are closed, and snap close blocks before the installation screw of snap seat, can prevent dismounting with screwdriver, has effectively played antitheft effect.

Those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, rather than as a limitation to the present invention, as long as within the scope of the spirit of the present invention, the above-described embodiments Changes and modifications will fall within the scope of the claims of the present invention.

Claims (9)

1. A buried transformer, comprising a rectangular cube pit with the upper part exposed to the ground and an open upper end, a transformer installed in the pit and an aboveground part positioned at the upper end of the pit, the aboveground part comprising a ventilation window and a cover plate part ; characterized in that, The ventilation window includes a window installed on the outer side of the upper end surface of the wall of the pit, the window is surrounded by front and rear side frames and left and right side frames, the front and rear side frames Each is divided into a number of front and rear window frames, and the left and right side frames are respectively divided into a number of left and right window frames, and each front and rear window frame and each left and right window frame are respectively installed with a stainless steel wire mesh plate and a blinds; The cover plate component includes left and right flip covers, a cover plate anti-drop mechanism and an anti-theft lock, wherein, The left end of the left flip is connected to the upper end of the left frame through several anti-theft hinges, and the right end of the right flip is connected to the upper end of the right frame through several anti-theft hinges, so that the left and right flips can face each other. closed or reversely opened; The cover plate anti-drop mechanism includes two left support pieces and two right support pieces, one end of the two left support pieces is installed on the near front and rear ends of the lower end surface of the left flip cover one by one, and the two left support pieces The other ends of the support members are mounted on the inner sides near the right ends of the front side frame and the rear side frame in one-to-one correspondence, and one ends of the two right support members are installed in front of the lower end face of the right flip cover in one-to-one correspondence. , the rear end, the other ends of the two right support members are installed on the inner side near the left end of the front side frame and the rear side frame in a one-to-one correspondence; The anti-theft lock includes a buckle seat installed in the center of the outer surface of the rear side frame, two of which have the same structure and are installed on the lower end surface of the left flip cover and the right A lock on the lower end surface of the flip cover and a padlock passing through the lock seat and the lock; The anti-theft hinge includes a first leaf, a pin seat, a pin shaft, a second leaf, a pin hole seat and a pin hole; The first sheet is fixed on the upper end surface of the right frame or the upper end surface of the left frame; The length of the pin seat is 1/2 of the length of the first sheet and is arranged on one side of the first sheet; The pin is arranged on the inner end surface of the pin seat and is parallel to one side of the first sheet, so that the pin seat and the pin are located outside or outside the upper end surface of the right side frame. The outer side of the upper end surface of the left frame; The second sheet is fixed on the left lower surface of the left flip or the right lower surface of the right flip; The length of the pin hole seat is 1/2 of the length of the second sheet and is arranged at one end of one side of the second sheet; The pin hole is provided on the inner end surface of the pin hole seat and is parallel to one side of the second sheet, the pin hole is adapted to the pin shaft and is a blind hole, so that the first sheet and the first sheet The second sheet is pivotally connected together in a manner that the pin shaft is rotatably inserted in the pin hole and rotates around the pin shaft. 2. The buried transformer according to claim 1, characterized in that, both the left support and the right support are gas springs. 3. The buried transformer according to claim 1, characterized in that, The window is composed of four corner columns, two transverse beams and two longitudinal beams connected to the upper ends of the two diagonal columns; The front and rear window frames and the left and right window frames are respectively separated by a number of intermediate columns arranged between the four corner columns. 4. The buried transformer according to claim 1, characterized in that, the cover plate component further comprises a cover plate supporting mechanism, and the cover plate supporting mechanism includes several parts respectively connected to the left side frame at intervals through connectors. A transverse strut between the upper inner side of the front side frame and the upper inner side of the right side frame and a longitudinal brace spanning between the center of the upper inner side of the front side frame and the center of the upper inner side of the rear side frame through a connecting piece files. 5. The buried transformer according to claim 4, characterized in that, the longitudinal brace is made of a channel steel, and a drainpipe communicating with the longitudinal brace is installed on the outside of the rear side frame . 6 . The buried transformer according to claim 4 , wherein the connecting piece comprises a grooved piece and two mounting pieces respectively connected to the rear ends of both sides of the grooved piece. 7 . 7. The buried transformer according to claim 1, wherein the above-ground part further includes a wall arranged along the inner side of the upper end surface of the wall of the pit and integrally formed with the wall of the pit waterproof port. 8. The buried transformer according to claim 1, wherein the left and right flaps are made of FRP extruded profiles and surrounded by stainless steel; the windows and shutters are made of plastic wood; the The anti-theft hinges, latch seat and latch are all made of stainless steel. 9. The buried transformer according to claim 4, wherein the transverse brace is made of plastic wood.