Prefabricated cabin frame and prefabricated cabin

文档序号:911165 发布日期:2021-02-26 浏览:2次 中文

阅读说明:本技术 一种预制舱机架及预制舱 (Prefabricated cabin frame and prefabricated cabin ) 是由 吕志娟 李承光 袁敬海 彭俊召 姚琳 张伟朋 朱凤玲 李振兴 刘常德 于 2019-08-23 设计创作,主要内容包括:本发明涉及一种预制舱机架及预制舱。预制舱机架包括多组机架单元,机架单元包括第一立架和第二立架,相邻两个机架单元中的第二立架和第一立架满足:第二立架的尺寸沿前后方向小于第一立架的尺寸;第二立架的前侧固定有U型板,U型板包括第一折边、第二折边以及底板,U型板通过底板固定在第二立架的前侧面上,第一折边向外翻折有立架固定翻边,第二折边设有固定孔并通过固定孔固定有面板组件,面板组件具有出线口。相较于现有技术,在U型板的槽宽相同时,将U型板通过底板与立架固定能够减小相邻两个机架单元中沿左右方向相邻的第二立架和第一立架之间的距离,减小了设备框架结构占用的空间。(The invention relates to a prefabricated cabin frame and a prefabricated cabin. The prefabricated cabin frame includes multiunit frame unit, and the frame unit includes first grudging post and second grudging post, and second grudging post and first grudging post in two adjacent frame units satisfy: the size of the second vertical frame is smaller than that of the first vertical frame along the front-back direction; the front side of second grudging post is fixed with the U template, and the U template includes first hem, second hem and bottom plate, and the U template passes through the bottom plate to be fixed on the leading flank of second grudging post, and first hem is outwards turned over and is rolled over the fixed turn-ups of grudging post, and the second hem is equipped with the fixed orifices and is fixed with the panel subassembly through the fixed orifices, and the panel subassembly has the outlet. Compare in prior art, when the groove width of U template is the same, pass through the bottom plate with the grudging post with the U template fixed can reduce in two adjacent frame units along the distance between the adjacent second grudging post of left and right directions and the first grudging post, reduced the space that equipment frame structure occupy.)

1. Prefabricated cabin frame, its characterized in that: including the frame unit that is used for installing secondary equipment that the multiunit arranged along left right direction, the frame unit includes first grudging post and the second grudging post that extends along the fore-and-aft direction in parallel, the rear end parallel and level of each grudging post, satisfies along the adjacent second grudging post and the first grudging post of left right direction in two arbitrary adjacent frame units: the size of the second vertical frame along the front-back direction is smaller than that of the first vertical frame along the front-back direction;

the front side of second grudging post is fixed with the opening forward in order to form the U template of vertical line passageway of walking, and the U template includes first hem, second hem and connects the bottom plate of two hems, and the U template passes through the bottom plate is fixed on the leading flank of second grudging post, and the one end that the bottom plate was kept away from to the evagination book to first hem has the fixed turn-ups of grudging post of fixing at first grudging post leading flank, and the one end that the bottom plate was kept away from to the second hem is equipped with the fixed orifices, and the second hem is fixed with the panel components or preceding termination that have the outlet through the fixed orifices, the outlet is used for with vertical line passageway.

2. The prefabricated cabin airframe of claim 1 wherein: one end, far away from the bottom plate, of the second folded edge is outwards folded with a panel fixing folded edge, and the fixing hole is formed in the panel fixing folded edge.

3. The prefabricated cabin airframe of claim 2 wherein: the vertical frame fixing flange and the panel fixing flange are positioned on the same vertical plane.

4. The prefabricated cabin airframe of claim 1, 2 or 3 wherein: and a cable fixing frame for fixing the cable is fixedly assembled at the outlet on the second flange.

5. The prefabricated cabin airframe of claim 1, 2 or 3 wherein: the panel component comprises a panel, a left supporting leg and a right supporting leg, wherein the panel is installed on the front side of the corresponding rack unit, one of the left supporting leg and the right supporting leg is fixed on the second flange through a fixing hole and a fastener in a matched mode, the supporting leg fixed on the second flange is a U-shaped supporting leg, and a U-shaped port of the U-shaped supporting leg forms the wire outlet.

6. The prefabricated cabin airframe of claim 1, 2 or 3 wherein: the front side face of the second vertical frame is provided with a modulus hole, the bottom plate is provided with a long hole, and the bottom plate is matched and fixed on the front side face of the second vertical frame through the long hole and the modulus hole and a fastener.

7. The prefabricated cabin airframe of claim 1, 2 or 3 wherein: the inboard fixed mounting of second grudging post has the support frame, the front side of support frame be equipped with the setting is hugged closely in order to pass through fastener fixed connection at the second hem to the second hem fixed plate.

8. The prefabricated cabin airframe of claim 1, 2 or 3 wherein: the rear side of each rack unit is provided with a transverse reinforcing rib for enhancing the strength of the prefabricated cabin rack, and the transverse reinforcing rib is provided with a fixing hole for fixedly connecting the prefabricated cabin rack to the side wall of the prefabricated cabin.

9. The prefabricated cabin airframe of claim 1, 2 or 3 wherein: and the bottom plate is provided with a weight-reducing heat dissipation hole.

10. Prefabricated cabin, including the cabin body with fix the internal prefabricated cabin frame in cabin, its characterized in that: the prefabricated cabin housing is according to any one of the preceding claims 1 to 9.

Technical Field

The invention relates to a prefabricated cabin frame and a prefabricated cabin.

Background

The secondary equipment prefabricated cabin is a replacement product of a secondary equipment room of a transformer substation, and is widely applied to the transformer industry in recent years. But the wiring is in disorder on the bulkhead generally inside the prefabricated cabin of tradition, and later stage is inconvenient to electrical components's maintenance and operation and maintenance. Therefore, in order to ensure that the wiring in the prefabricated cabin is beautiful, safe and reliable and is convenient to overhaul, transport and maintain, the research on the integrated modular wiring system of the prefabricated cabin is very necessary.

The application publication number is CN106129819A, and the application publication number is 2016.11.16's Chinese invention patent application discloses a prefabricated cabin frame, this prefabricated cabin frame includes left frame, cross bracing board and right frame, wherein right frame includes opening second U template and the forward third U template of opening to the left, the second U template includes preceding curb plate, posterior lateral plate and second bottom plate, the second riser of backward extension is connected perpendicularly to the posterior lateral plate, the third U template includes left side board, right side board and third bottom plate, the second bottom plate fixed connection of left side board and second U template. After the prefabricated cabin frame is installed, secondary equipment is installed in an equipment installation area between the left frame and the right frame, and accessories such as cables and wiring bars are installed in an accessory installation area formed by the third U-shaped plate. However, because the left side plate of the third U-shaped plate is arranged on the second bottom plate of the second U-shaped plate, the occupied space of the frame structure of the equipment is increased when the groove widths of the second U-shaped plate are the same.

Disclosure of Invention

The invention aims to provide a prefabricated cabin frame, which aims to solve the problems that in the prior art, a left side plate of a U-shaped plate forming an accessory mounting area is fixedly mounted on a right frame, and the occupied space of an equipment frame structure is increased when the groove widths of the U-shaped plates are the same; the invention also aims to provide a prefabricated cabin, which aims to solve the problem that the size of the prefabricated cabin is increased due to the fact that the occupied space of an equipment frame structure is increased when the groove widths of U-shaped plates are the same as each other because the left side plate of the U-shaped plate forming an accessory mounting area is fixedly mounted on a right frame in the prior art.

In order to realize the purpose, the technical scheme of the prefabricated cabin frame is as follows:

the prefabricated cabin frame includes that the multiunit is arranged along left right direction and is used for installing the frame unit of secondary equipment, and the frame unit includes along the parallel first grudging post and the second grudging post that extends of fore-and-aft direction, the rear end parallel and level of each grudging post, satisfies along the adjacent second grudging post and the first grudging post of left right direction in arbitrary two adjacent frame units: the size of the second vertical frame along the front-back direction is smaller than that of the first vertical frame along the front-back direction; the front side of second grudging post is fixed with the opening forward in order to form the U template of vertical line passageway of walking, and the U template includes first hem, second hem and connects the bottom plate of two hems, and the U template passes through the bottom plate is fixed on the leading flank of second grudging post, and the one end that the bottom plate was kept away from to the evagination book to first hem has the fixed turn-ups of grudging post of fixing at first grudging post leading flank, and the one end that the bottom plate was kept away from to the second hem is equipped with the fixed orifices, and the second hem is fixed with the panel components or preceding termination that have the outlet through the fixed orifices, the outlet is used for with vertical line passageway.

The prefabricated cabin frame has the beneficial effects that: according to the invention, the size of the second vertical frame along the front-back direction is smaller than that of the first vertical frame along the front-back direction, the U-shaped plate with the forward opening is fixed on the front side surface of the second vertical frame, the U-shaped plate can form a vertical wiring channel to install accessories in the space in the U-shaped plate, and compared with the existing scheme that the left side plate of the U-shaped plate forming an accessory installation area is fixed on the right frame, when the groove widths of the U-shaped plates are the same, the distance between the second vertical frame and the first vertical frame which are adjacent in the left-right direction in two adjacent rack units can be reduced by fixing the U-shaped plate and the vertical frames through the bottom plate, so that the space occupied by the equipment frame structure is reduced.

Furthermore, one end, far away from the bottom plate, of the second folded edge is folded outwards to form a panel fixing folded edge, and the fixing hole is formed in the panel fixing folded edge. After the fixing holes are formed in the panel fixing turned edges, the fixing holes face the front, and therefore the panel assembly or the front wiring device can be conveniently installed through the fixing holes.

Furthermore, the vertical frame fixing flange and the panel fixing flange are positioned on the same vertical plane. The vertical frame fixing flange and the panel fixing flange are located on the same vertical plane, namely the widths of two side plates of the U-shaped plate are equal, and the U-shaped plate can be conveniently machined.

Furthermore, a cable fixing frame for fixing the cable is fixedly assembled at the outlet of the second flange. The cables of the connecting equipment can be arranged through the cable fixing frame, and subsequent repair and maintenance are facilitated.

Furthermore, the panel assembly comprises a panel, a left supporting leg and a right supporting leg, wherein the panel is installed on the front side of the corresponding rack unit, one of the left supporting leg and the right supporting leg is matched and fixed on the second flange through a fixing hole and a fastener, the supporting leg fixed on the second flange is a U-shaped supporting leg, and the U-shaped port of the U-shaped supporting leg forms the wire outlet. The U-shaped supporting leg is simple in structure and convenient to walk.

Furthermore, the front side face of the second vertical frame is provided with a modulus hole, the bottom plate is provided with a long hole, and the bottom plate is matched with the fastener through the long hole and the modulus hole and is fixed on the front side face of the second vertical frame. Under the condition of larger error, the long holes and the modulus holes can be aligned, so that the U-shaped plate can be conveniently fixed on the front side surface of the second vertical frame.

Further, the inboard fixed mounting of second grudging post has the support frame, the front side of support frame be equipped with the second hem hugs closely the setting in order to pass through the fixed plate of fastener fixed connection on the second hem. The stability of the U-shaped plate fixation is increased.

Furthermore, the rear side of each rack unit is provided with a transverse reinforcing rib for enhancing the strength of the rack, and the transverse reinforcing rib is provided with a fixing hole for fixedly connecting the rack on the side wall of the prefabricated cabin. The strength of the frame can be enhanced through the transverse reinforcing ribs, and the frame can be conveniently arranged on the bulkhead of the prefabricated cabin.

Furthermore, the bottom plate is provided with weight-reducing heat dissipation holes. The prefabricated cabin frame is used for reducing the weight of the prefabricated cabin frame and dissipating heat.

In order to realize the purpose, the technical scheme of the prefabricated cabin is as follows:

the prefabricated cabin includes the cabin body and fixes the prefabricated cabin frame in the cabin body, and the prefabricated cabin frame includes that the multiunit is arranged along left right direction and is used for installing the frame unit of secondary equipment, and the frame unit includes along the parallel first grudging post and the second grudging post that extends of fore-and-aft direction, the rear end parallel and level of each grudging post, satisfies along the adjacent second grudging post and the first grudging post of left right direction in arbitrary two adjacent frame units: the size of the second vertical frame along the front-back direction is smaller than that of the first vertical frame along the front-back direction; the front side of second grudging post is fixed with the opening forward in order to form the U template of vertical line passageway of walking, and the U template includes first hem, second hem and connects the bottom plate of two hems, and the U template passes through the bottom plate is fixed on the leading flank of second grudging post, and the one end that the bottom plate was kept away from to the evagination book to first hem has the fixed turn-ups of grudging post of fixing at first grudging post leading flank, and the one end that the bottom plate was kept away from to the second hem is equipped with the fixed orifices, and the second hem is fixed with the panel components or preceding termination that have the outlet through the fixed orifices, the outlet is used for with vertical line passageway.

The beneficial effects of the prefabricated cabin of the invention are as follows: according to the invention, the size of the second vertical frame along the front-back direction is smaller than that of the first vertical frame along the front-back direction, the U-shaped plate with the forward opening is fixed on the front side surface of the second vertical frame, the U-shaped plate can form a vertical wiring channel to install accessories in the space in the U-shaped plate, and compared with the existing scheme that the left side plate of the U-shaped plate forming an accessory installation area is fixed on the right frame, when the groove widths of the U-shaped plates are the same, the distance between the second vertical frame and the first vertical frame which are adjacent in the left-right direction in two adjacent rack units can be reduced by fixing the U-shaped plate and the vertical frames through the bottom plate, so that the space occupied by the equipment frame structure is reduced.

Furthermore, one end, far away from the bottom plate, of the second folded edge is folded outwards to form a panel fixing folded edge, and the fixing hole is formed in the panel fixing folded edge. After the fixing holes are formed in the panel fixing turned edges, the fixing holes face the front, and therefore the panel assembly or the front wiring device can be conveniently installed through the fixing holes.

Furthermore, the vertical frame fixing flange and the panel fixing flange are positioned on the same vertical plane. The vertical frame fixing flange and the panel fixing flange are located on the same vertical plane, namely the widths of two side plates of the U-shaped plate are equal, and the U-shaped plate can be conveniently machined.

Furthermore, a cable fixing frame for fixing the cable is fixedly assembled at the outlet of the second flange. The cables of the connecting equipment can be arranged through the cable fixing frame, and subsequent repair and maintenance are facilitated.

Furthermore, the panel assembly comprises a panel, a left supporting leg and a right supporting leg, wherein the panel is installed on the front side of the corresponding rack unit, one of the left supporting leg and the right supporting leg is matched and fixed on the second flange through a fixing hole and a fastener, the supporting leg fixed on the second flange is a U-shaped supporting leg, and the U-shaped port of the U-shaped supporting leg forms the wire outlet. The U-shaped supporting leg is simple in structure and convenient to walk.

Furthermore, the front side face of the second vertical frame is provided with a modulus hole, the bottom plate is provided with a long hole, and the bottom plate is matched with the fastener through the long hole and the modulus hole and is fixed on the front side face of the second vertical frame. Under the condition of larger error, the long holes and the modulus holes can be aligned, so that the U-shaped plate can be conveniently fixed on the front side surface of the second vertical frame.

Further, the inboard fixed mounting of second grudging post has the support frame, the front side of support frame be equipped with the second hem hugs closely the setting in order to pass through the fixed plate of fastener fixed connection on the second hem. The stability of the U-shaped plate fixation is increased.

Furthermore, the rear side of each rack unit is provided with a transverse reinforcing rib for enhancing the strength of the prefabricated cabin rack, and the transverse reinforcing rib is provided with a fixing hole for fixedly connecting the prefabricated cabin rack to the side wall of the prefabricated cabin. The strength of the frame can be enhanced through the transverse reinforcing ribs, and the frame can be conveniently arranged on the bulkhead of the prefabricated cabin.

Furthermore, the bottom plate is provided with weight-reducing heat dissipation holes. The prefabricated cabin frame is used for reducing the weight of the prefabricated cabin frame and dissipating heat.

Drawings

FIG. 1 is a schematic view of a frame unit in an embodiment of the prefabricated cabin of the present invention;

FIG. 2 is a schematic view of a frame in an embodiment of the prefabricated cabin of the present invention;

FIG. 3 is a schematic diagram of a cabinet according to an embodiment of the prefabricated cabin of the present invention;

FIG. 4 is a schematic view of another angle configuration of the cabinet in the embodiment of the prefabricated cabin of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4;

FIG. 6 is a schematic structural view of a U-shaped plate in an embodiment of the prefabricated cabin of the present invention;

description of reference numerals: 1-prefabricating a cabin frame; 10-a rack unit; 11-a first stand; 12-a second stand; 13-U-shaped plates; 131-a second fold; 132-a first hem; 133-a base plate; 134-fixing the flanging by the vertical frame; 135-panel fixing flanging; 136-long hole; 137-weight reduction of heat dissipation holes; 14-a panel; 15-a support leg; 16-a cable mount; 17-a line concentration pipe; 18-a line bank; 19-transverse reinforcing ribs; 2, a cabinet; 21-a base; 22-a top plate; 24-left closing plate; 25-right closing plate; 26-front closing plate; 271-upper reinforcing plate; 272-lower reinforcing plate; 3-obliquely cutting a notch; 4-a grounding copper bar; and 5, supporting frames.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

In the embodiment of the prefabricated cabin of the present invention, the prefabricated cabin comprises a cabin body and a cabinet 2 disposed in the cabin body, as shown in fig. 1 to 4, the cabinet 2 comprises a prefabricated cabin frame 1, and a left sealing plate 24, a right sealing plate 25 and a front sealing plate 26 which are sealed on the prefabricated cabin frame 1.

As shown in fig. 1 and 2, the prefabricated cabin frame 1 includes a base 21 and a frame unit 10 disposed on the base 21 in the left-right direction for mounting secondary equipment, a top plate 22 is disposed on the top of the frame unit 10, the frame unit 10 includes a first vertical frame 11 and a second vertical frame 12 extending in parallel in the front-back direction, the rear ends of the vertical frames are flush, and the dimension of the second vertical frame 12 in the front-back direction is smaller than the dimension of the first vertical frame 11 in the front-back direction. Two rows of modulus holes are formed in the front side faces of the first vertical frame 11 and the second vertical frame 12, transverse reinforcing ribs 19 used for reinforcing the strength of the prefabricated cabin frame 1 are arranged at the rear ends of the first vertical frame 11 and the second vertical frame 12 in a staggered mode, and fixing holes used for fixedly connecting the frame to a cabin wall are formed in the transverse reinforcing ribs 19. The transverse reinforcing ribs 19 can not only strengthen the strength of the prefabricated cabin frame 1, but also facilitate the installation and fixation of the prefabricated cabin frame 1 on the cabin wall of the prefabricated cabin. In other embodiments, when the strength of the stand is sufficient, the transverse reinforcing rib can be omitted, and the rear side surface of the stand and the bulkhead can be directly fixed.

The lower part of first grudging post 11 and second grudging post 12 still is provided with slant cut opening 3, the ground copper bar 4 that extends along the horizontal direction is installed to 3 positions department that cut opening of slant, slant cut opening 3 can enough be used for installing ground copper bar 4 and also can regard as the inside cable collection passageway of prefabricated cabin frame 1, make in every frame unit 10 and each frame unit 10 connect, wiring work can accomplish in the front of prefabricated cabin frame 1, and slant cut opening is stronger than right angle opening stability, be difficult for causing the stand front end suspension part to flutter. An upper reinforcing rib plate 271 for reinforcing the strength of the corresponding vertical frame is arranged between the lower side surface of the top plate 22 of the prefabricated cabin frame 1 and the corresponding side surface of the upper end of each vertical frame, and a lower reinforcing rib plate 272 for reinforcing the strength of the corresponding vertical frame is arranged between the upper side surface of the base 21 of the prefabricated cabin frame 1 and the corresponding side surface of the lower end of each vertical frame. The strength of a single vertical frame can be enhanced through the upper reinforcing rib plate 271 and the lower reinforcing rib plate 272, so that the vertical frame is fixed more firmly. In other implementations, the upper reinforcing rib plate and the lower reinforcing rib plate are not arranged, and the upper side surface of the vertical frame is fixed with the top plate and the lower side surface of the vertical frame is fixed with the base.

As shown in fig. 4, 5 and 6, a U-shaped plate 13 with a front opening to form a vertical routing channel is fixed on the front side of the second vertical frame 12, and the U-shaped plate 13 includes a first folding edge 132, a second folding edge 131 and a bottom plate 133 connecting the two folding edges, wherein the first folding edge 132 is close to the first vertical frame 11, and the second folding edge 131 is close to the second vertical frame 12. The bottom plate 133 of the U-shaped plate 13 is provided with a long hole 136, and the bottom plate 133 is fixed on the front side surface of the second vertical frame 12 through the long hole 136, the modulus hole of the second vertical frame and the bolt, so that even under the condition of large error, the long hole and the modulus hole can be aligned, and the U-shaped plate can be conveniently fixed on the front side surface of the second vertical frame. The bottom plate 133 of the U-shaped plate 13 is further provided with a square weight-reducing heat radiation hole 137 for reducing weight and radiating heat. Of course, in other embodiments, a round hole with a diameter matched with that of the bolt can be matched with the module hole. The end of the first folded edge far from the bottom plate 133 is outwards turned over to form a stand fixing turned edge 134, the stand fixing turned edge 134 is fixed on the front side face of the first stand 11, the end of the second folded edge 131 far from the bottom plate is outwards turned over to form a panel fixing turned edge 135, and a fixing hole used for fixing the panel assembly is formed in the panel fixing turned edge 135. In order to facilitate the processing of the U-shaped plate 13, the bracket fixing flange 134 and the panel fixing flange 135 are located on the same vertical plane in this embodiment, that is, the two flanges of the U-shaped plate 13 have the same width. Of course, in other embodiments, the stand fixing flange and the panel fixing flange may not be arranged on the same vertical plane, but their positions may be adjusted according to the needs. Still fixed mounting has support frame 5 between two grudging posts in same grudging post unit 10, and the front side of support frame 5 is equipped with to hug closely the setting with second hem 131 in order to pass through the fixed plate of bolt fixed connection on second hem 131, can strengthen the intensity of U template 13 in second hem 131 department through fixed plate and second hem 131 fixed connection. In other embodiments, the second flange may not be provided with the panel fixing flange, and the fixing hole is directly formed in the second flange. In other embodiments, the support frame may not be provided with a fixing plate, and the support frame is directly fixed on the two stands.

The panel assembly in this embodiment includes panel 14 and installs two landing legs 15 at corresponding frame unit 10 front side with panel 14, and two landing legs 15 are U type landing legs, and the U type opening of the landing leg 15 that is located the right side is fixed turn-ups 135 on towards the panel and fixed with the fixed turn-ups 135 of panel, and landing leg 15 constitutes the outlet that is used for on the panel assembly with vertical wiring passageway intercommunication jointly with the fixed turn-ups 135 of panel, and the landing leg that is located the left side is fixed with the leading flank of first grudging post 11. In other embodiments, only the leg on the right side may be U-shaped, and the leg on the left side may be a side plate. In other embodiments, two side plates may be respectively disposed on two sides of the panel, and the panel is fixed on the U-shaped plate through the side plates, and rectangular outlets are correspondingly disposed on the side plates for outgoing. Still be provided with cable mount 16 in the vertical line passageway of walking, cable mount 16 is the U type, including the horizontal limit of two parallels and the vertical limit of connecting the horizontal limit, all is provided with the cable fixed orifices on two horizontal limits, and vertical edge is provided with waist round hole, and cable mount 16 passes through waist round hole and bolt cooperation to be fixed on the second hem 131 of U template 13, through cable fixed orifices arrangement, fixed cable. In other embodiments, the cable holder may not be provided. Still be provided with line concentration pipe 17 and wiring row 18 in the vertical line channel of walking, wherein line concentration pipe 17 is vertical extension's square pipe, and line hole is crossed to line concentration pipe 17 both sides. In other embodiments, when the front wiring device needs to be installed, the front wiring device can be installed at the position of the panel assembly after the panel assembly is integrally detached.

The cables of the secondary equipment penetrate out of the wire outlet holes of the panel assembly to the vertical wiring channel, are firstly arranged and bound by the cable ties and fixed on the cable fixing frame 16, then the cables needing to be connected to the wiring bar 18 penetrate through the wire passing holes on the two sides of the wire collecting pipe 17 and then are connected with the wiring bar 18, and the cables not needing to be connected to the wiring bar 18 are downward wired through the wire collecting pipe 17.

In the embodiment of the prefabricated cabin rack of the present invention, the structure of the prefabricated cabin rack in this embodiment is the same as that of the prefabricated cabin rack in the above specific embodiment of the prefabricated cabin, and details are not described herein again.

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