Preassembled box-type transformer substation shell

Abstract

The utility model provides a preassembled box-type transformer substation shell, and aims to solve the technical problem that when a fan blade of an existing preassembled box-type transformer substation breaks down, the fan blade needs to be detached from a shell for maintenance, and time and labor are wasted. The air blowing unit of the transformer substation shell comprises an air bellow and a fan. The air bellow is installed on the outer wall of the shell, and the side close to the shell is communicated with the interior of the shell. And the fan is arranged in the air box. The overturning unit comprises a gear assembly, a trigger rack and a swing arm. The gear assembly is provided with an overturning gear. And the overturning gear is matched and meshed with the triggering rack. The swing arm is installed on the top of the air bellow and connected with the overturning gear through the overturning shaft. The overturning gear is arranged on the inner side wall, close to the edge of the side wall, of the shell in a matched mode and used for exposing the fan out of the shell after the fan overturns along with the air bellow. The rack is triggered to move in the vertical direction to drive the overturning gear to rotate, so that the swing arm drives the air box to rotate until the fan can be exposed out of the shell, and a maintainer can maintain the fan conveniently.

Description

Technical Field

[0001] The present application relates to pre-installed box-type substation technology, and in particular to a pre-installed box-type substation casing. Background Art

[0002] The prefabricated box-type substation is a factory-prefabricated indoor and outdoor compact power distribution equipment that integrates high-voltage switchgear, distribution transformers and low-voltage distribution devices according to a certain wiring scheme. That is, the functions of transformer step-down and low-voltage power distribution are organically combined and installed in a steel structure box with moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, anti-theft, and heat-insulating functions. However, traditional substation boxes of this type often adopt a fully enclosed structure. Although the protection function is very strong, it is not convenient for ventilation, so there are certain hidden dangers during use. Therefore, it is very necessary to develop a substation box that integrates protection and ventilation functions.

[0003] The utility model patent with the publication number (CN208478969U) discloses a box-type substation shell that is easy to ventilate. It solves the problem that the traditional box-type substation shell is not easy to ventilate and has poor protection effect by setting the shell body, the first filter, the connecting plate, the shell, the fixed shell, the movable plate, the horizontal plate, the protective cover, the box door, the fan, the vent, the second filter, the filter cotton, the motor, the through port, the fixed plate, the fan blade, the second sliding sleeve, the second sliding rod, the first spring, the first sliding sleeve, the movable rod, the fixed block, the first sliding rod, the limit plate and the second spring. Although the box-type substation is equipped with fan blades inside the shell and on both sides of the embedded shell, the airflow and heat dissipation can be accelerated by the rotation of the fan blades, but when the fan blades fail, the motor and the fan blades need to be removed from the shell for maintenance. The disassembly and assembly process is relatively complicated, time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of the utility model is to provide a pre-installed box-type substation shell to solve the problems raised in the above background technology.

[0005] A pre-assembled box-type substation housing, comprising:

[0006] The air blowing unit comprises a bellows and a fan; the bellows is mounted on the outer wall of the shell and communicates with the inside of the shell at the side close to the shell; the fan is mounted in the bellows;

[0007] The flip unit comprises a gear assembly, a trigger rack and a swing arm; the gear assembly has a flip gear; the flip gear is matched and meshed with the trigger rack; the swing arm is installed on the top of the bellows and is connected to the flip gear through a flip shaft; the flip gear is matched and arranged on the inner wall near the edge of the side wall of the shell, so as to realize that the fan is exposed outside the shell after the bellows is flipped.

[0008] Furthermore, the flip unit also includes a telescopic motor; the bottom end of the telescopic motor is installed on the inner bottom wall of the shell, and the top output shaft thereof is fixedly installed with the bottom end of the trigger rack.

[0009] Furthermore, the gear assembly also includes a gear rack and an auxiliary gear; the gear rack is installed on the inner wall of the shell; the auxiliary gear is respectively meshed with the rack on both sides of the flip gear; the central axis of the auxiliary gear is installed on the gear rack through a bearing.

[0010] Furthermore, the bellows body has side seals installed on both sides close to the shell. A plurality of bolts are passed through the side seals. One end of the bolts is threadedly connected to the shell.

[0011] Furthermore, the shell is provided with an air outlet; a sealing rubber ring matching the bellows body is installed on the outside of the air outlet for sealing connection between the bellows body and the air outlet.

[0012] Furthermore, the sealing rubber ring is provided with a through hole near its outer edge that matches the bolt of the side seal strip.

[0013] Furthermore, the swing arm has an extension portion; the extension portion is suspended above the bellows body away from the end of the bellows body and is connected to the flip shaft.

[0014] Furthermore, air vents are respectively provided on the left side wall and the right side wall of the shell; the extension portion is used to extend the swing arm toward the rear side wall of the shell; the extension length of the extension portion is matched with the flip axis; the distance between the flip gear and the rear side wall of the shell is smaller than the length of the left side wall of the swing arm.

[0015] Furthermore, the front side of the shell is opened, and doors are hingedly installed on the left front side wall and the right front side wall of the shell respectively, which are used for opening and closing the shell.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) By triggering the rack to move in the vertical direction, the flip gear is driven to rotate, so that the swing arm drives the bellows to rotate until the fan can be exposed outside the shell, so that maintenance personnel can inspect the fan. In order to maintain the stable rotation of the bellows, an auxiliary gear is also provided on the shell. The auxiliary gear and the trigger rack are respectively engaged with the two sides of the flip gear, and have a clamping effect on the flip gear, so that the flip gear can rotate stably, thereby maintaining the stable rotation of the bellows.

[0018] (2) A sealing rubber ring is provided on the outer side of the air outlet of the shell, and when the bellows is installed in the shell, it will squeeze the sealing rubber ring and compress the sealing rubber ring into the air outlet to maintain a sealed connection between the bellows and the air outlet. This not only maintains a sealed connection between the bellows body and the air outlet, but also effectively reduces the entry of debris into the shell, thereby playing a certain protective role. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the structure of a pre-installed box-type substation shell according to an embodiment of the present application;

[0021] Figure 2 A schematic diagram of a sealing rubber ring assembled with an air blowing unit disposed on the left side wall of a housing according to an embodiment of the present application (from a front side perspective);

[0022] Figure 3 This is a schematic diagram of the sealing rubber ring assembled with the air blowing unit disposed on the left side wall of the shell according to an embodiment of the present application (right side perspective).

[0023] Reference numerals:

[0024] 1. Shell; 11. Door; 12. Air outlet;

[0025] 2. Blower unit; 21. Bellows body; 22. Fan; 23. Side seal strip; 24. Bolt; 25. Sealing rubber ring;

[0026] 3. Swing arm; 31. Flip shaft; 32. Flip gear; 33. Trigger rack; 34. Telescopic motor; 35. Auxiliary gear; 36. Gear rack. DETAILED DESCRIPTION

[0027] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0028] In the description of the present invention, it should be understood that the terms "length", "top", "front", "back", "left", "right", "vertical", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships conventionally placed when the product of the present invention is used, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numerals in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments discussed.

[0031] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0032] The utility model embodiment provides a pre-installed box-type substation housing, please refer to Figure 1-Figure 3 The pre-installed box-type substation housing includes a blast unit 2 and a flip unit.

[0033] The air blowing unit 2 includes a wind box and a fan 22. The wind box 22 is installed on the outer wall of the housing 1, and the side close to the housing 1 is communicated with the interior of the housing 1. The fan 22 is installed in the wind box.

[0034] The flip unit includes a gear assembly, a trigger rack 33 and a swing arm 3. The gear assembly has a flip gear 32. The flip gear 32 is matched and meshed with the trigger rack 33. The swing arm 3 is installed on the top of the bellows and is connected to the flip gear 32 through a flip shaft 31. The flip gear 32 is matched and arranged at the inner side wall of the housing 1 near the edge of the side wall, and is used to realize that the fan 22 is exposed outside the housing 1 after the bellows is flipped.

[0035] By triggering the rack 33 to move in the vertical direction, the flip gear 32 is driven to rotate, so that the swing arm 3 drives the bellows to rotate until the fan 22 can be exposed outside the housing 1, so that maintenance personnel can repair the fan 22.

[0036] Specifically,

[0037] The housing 1 has air vents 12 on its left and right walls. A sealing rubber ring 25 is installed outside the air vent 12. The sealing rubber ring 25 is formed by laminating multiple layers of rubber rings. A perforation is provided near the outer edge of the sealing rubber ring 25. The housing 1 is open on the front side, and a door 11 is hingedly installed on the left front side wall and the right front side wall of the housing 1, respectively, for opening and blocking the housing 1.

[0038] The blower unit 2 includes a bellows and a fan 22. The sealing rubber ring 25 provided for the bellows to match the air outlet 12 is installed on the outer wall of the housing 1. That is, when the bellows is installed in the housing 1, the bellows will squeeze the sealing rubber ring 25 and compress the sealing rubber ring 25 into the air outlet 12 to maintain the sealed connection between the bellows and the air outlet 12. At this time, the fan 22 in the bellows is started, and the heat inside the housing 1 is dissipated faster.

[0039] The bellows includes a bellows body 21 and side seals 23. The bellows body 21 has an accommodating space facing the shell 1. Side seals 23 are respectively installed on both sides of the bellows body 21 near the shell 1. The side seals 23 may be penetrated by a plurality of bolts 24 matching the perforations. That is, the number of the bolts 24 is the same as the perforations; and before the bellows is installed on the shell 1, the positions of the bolts 24 are first aligned with the positions of the perforations. As the bellows approaches the shell 1 and is squeezed against the outer wall of the shell 1, the sealing rubber ring 25 is compressed into the air port 12, and the bolts 24 are finally threadedly connected to the shell 1, completing the installation of the bellows on the shell 1. This not only maintains the sealed connection between the bellows body 21 and the air port 12, but also can effectively reduce the entry of debris into the shell 1, playing a certain protective role.

[0040] The fan 22 is installed in the accommodating space for heat dissipation inside the housing 1. When the fan 22 is started, the sealed connection between the bellows body 21 and the air outlet 12 helps to accelerate the airflow in the housing 1, thereby accelerating the heat dissipation in the housing 1.

[0041] The installation process of the bellows to the housing 1 is as follows: the fan 22 is installed in the bellows body 21. The bolt 24 is aligned with the perforation of the sealing rubber ring 25. When the bellows is close to the housing 1, the bolt 24 passes through the perforation, and the side seal 23 squeezes the sealing rubber ring 25 until the sealing rubber ring 25 is compressed into the air inlet 12. The bolt 24 is finally connected to the housing 1 by a thread, thereby completing the installation of the bellows to the housing 1. Through the above installation method, the bellows body 21 and the air outlet 12 are sealed.

[0042] The flip unit includes a driving assembly, a gear assembly and a swing arm 3. The gear assembly is arranged in the housing 1. The gear assembly is connected to a trigger rack 33 of the driving assembly. The trigger rack 33 is driven to move upward or downward in the vertical direction by a telescopic motor 34 of the driving assembly, thereby driving the flip gear 32 of the gear assembly to rotate.

[0043] The driving assembly includes a telescopic motor 34 and a trigger rack 33. The telescopic motor 34 is installed at the bottom wall of the housing 1, and the trigger rack 33 is fixedly installed on the top output shaft. The activation of the telescopic motor 34 can drive the trigger rack 33 to move upward or downward in the vertical direction.

[0044] The gear assembly includes a gear frame 36, a flip gear 32 and an auxiliary gear 35. The gear frame 36 is mounted on the inner wall of the housing 1. The flip gear 32 is meshed between the trigger rack 33 and the auxiliary gear 35. The flip gear 32 is connected to the housing 1 through the flip shaft 31. The central axis of the auxiliary gear 35 is mounted on the gear frame 36 through a bearing. When the trigger rack 33 moves upward or downward in the vertical direction, the flip gear 32 is driven to rotate, and the auxiliary gear 35 rotates in coordination with the flip gear 32. At the same time, the auxiliary gear 35 and the trigger rack 33 also have a clamping effect on the flip gear 32, which is conducive to the stable rotation of the flip gear 32.

[0045] The swing arm 3 is connected to the top of the bellows body 21. The swing arm 3 is provided with an extension. The extension is suspended above the bellows body 1 away from the bellows body and is connected to the flip shaft 31. The stable rotation of the flip gear 32 can drive the swing arm 3 to rotate smoothly backward, thereby driving the bellows with the bolt 24 removed to rotate smoothly backward; conversely, when the flip gear 32 rotates in the opposite direction, it drives the swing arm 3 to rotate smoothly forward, so that the swing arm 3 returns to the top of the bellows body 21.

[0046] Taking the bellows installed on the left side wall of the housing 1 as an example, in order to facilitate the maintenance of the fan 22, the bellows needs to be rotated until its accommodation space is offset from the outer side wall of the housing 1 and exposed outside the housing 1, so the flip gear 32 is required to be matched and arranged at the inner side wall near the rear side wall of the housing 1. That is, the distance between the flip gear 32 and the rear side wall of the housing 1 is less than the length of the left side wall of the swing arm 3, so that the fan 22 can be exposed outside the housing 1 after the bellows is flipped. The extension part of the swing arm 3 is arranged on its rear side, so that the swing arm extends toward the rear side wall of the housing 1 until the rear end of the extension part is suspended above the bellows body 1 and connected to the flip shaft 31.

[0047] When the blower unit 2 fails, the bolt 24 is removed. The telescopic motor 34 is started to drive the trigger rack 33 to move downward in the vertical direction. At this time, the flip gear 32 rotates stably under the clamping of the auxiliary gear 35 and the trigger rack 33, thereby driving the swing arm 3 to rotate smoothly backward, and then the bellows is also rotated smoothly backward until the accommodating space of the bellows is offset from the outer wall of the housing 1 and exposed outside the housing 1, so that the maintenance personnel can inspect the fan 22.

[0048] When the blower unit 2 is overhauled, the telescopic motor 34 is controlled to drive the trigger rack 33 to move upward in the vertical direction, so as to drive the flip gear 32 to rotate in the opposite direction, thereby driving the swing arm 3 to rotate forward, and then the bellows is rotated forward to its working position in the heat dissipation state. The bolts 24 are installed again to ensure that the bellows and the air outlet 12 of the pre-installed box-type substation are sealed and connected during operation.

Claims

1. A pre-installed box-type substation housing, characterized in that: The prefabricated box-type substation housing comprises: The air blowing unit comprises a bellows and a fan; the bellows is mounted on the outer wall of the shell, and the side close to the shell is in communication with the inside of the shell; the fan is mounted in the bellows; The flip unit comprises a gear assembly, a trigger rack and a swing arm; the gear assembly has a flip gear; the flip gear is matched and meshed with the trigger rack; the swing arm is installed on the top of the bellows and is connected to the flip gear through a flip shaft; the flip gear is matched and arranged on the inner wall near the edge of the side wall of the shell, so as to realize that the fan is exposed outside the shell after the bellows is flipped.

2. The prefabricated box-type substation enclosure according to claim 1 is characterized in that: The flip unit also includes a telescopic motor; the bottom end of the telescopic motor is installed on the inner bottom wall of the shell, and the top output shaft of the telescopic motor is fixedly installed with the bottom end of the trigger rack.

3. The prefabricated box-type substation enclosure according to claim 1 is characterized in that: The gear assembly also includes a gear frame and an auxiliary gear; the gear frame is installed on the inner wall of the shell; the auxiliary gear is respectively meshed with the rack on both sides of the flip gear; the central axis of the auxiliary gear is installed on the gear frame through a bearing.

4. The prefabricated box-type substation enclosure according to claim 1 is characterized in that: The bellows body has side seals installed on both sides close to the shell. A plurality of bolts are passed through the side seals. One end of the bolts is threadedly connected to the shell.

5. The prefabricated box-type substation enclosure according to claim 1 is characterized in that: The shell is provided with an air outlet; a sealing rubber ring matching the bellows body is installed on the outer side of the air outlet for sealingly connecting the bellows body and the air outlet.

6. The prefabricated box-type substation enclosure according to claim 5 is characterized in that: The sealing rubber ring is provided with a through hole near its outer edge which matches the bolt of the side sealing strip.

7. The prefabricated box-type substation enclosure according to claim 1, characterized in that: The swing arm has an extension portion; the extension portion is suspended above the bellows body away from the end of the bellows body and is connected to the flip shaft.

8. The prefabricated box-type substation enclosure according to claim 7 is characterized in that: The left side wall and the right side wall of the shell are respectively provided with air vents; the extension part is used for extending the swing arm toward the rear side wall of the shell; the extension length of the extension part is matched with the flip axis; the distance between the flip gear and the rear side wall of the shell is less than the length of the left side wall of the swing arm.

9. The prefabricated box-type substation enclosure according to claim 8, characterized in that: The front side of the shell is opened, and doors are hingedly installed on the left front side wall and the right front side wall of the shell respectively, which are used for opening and closing the shell.

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