Movable mouse-blocking roller shutter for power transformation and distribution station

Abstract

The utility model relates to the technical field of rat-proof facilities of power transformation and distribution stations, and particularly discloses a movable rat-blocking roller shutter of a power transformation and distribution station, which is arranged on the inner side of a door opening and comprises a roller box arranged on the inner side of a water-blocking threshold, a reel and a driving motor are arranged in the roller box, and one end of the reel is coaxially and fixedly connected with a main transmission shaft of the driving motor. A rat-proof roller shutter is arranged on the reel, one end of the rat-proof roller shutter is fixed to the reel, an upper rod is fixedly arranged at the other end of the rat-proof roller shutter, spools are coaxially and fixedly arranged on the two sides of the rat-proof roller shutter and the reel, rail grooves are formed in the two sides of the rat-proof roller shutter and vertically fixed to a wall on the inner side of a door opening, and the two ends of the upper rod are clamped in the rail grooves and slidably connected with the rail grooves. Pulley boxes are arranged right above the two track grooves, a steel wire rope is arranged between the pulley and the spool, one end of the steel wire rope is fixed to the upper rod, the other end of the steel wire rope is fixed to the spool, and therefore a traditional heavy mouse blocking plate is replaced with the rat-proof roller shutter small in size and light in weight.

Description

Technical Field

[0001] This utility model relates to the technical field of rodent-proof facilities for substations, and in particular to a movable rodent-proof roller shutter for substations. Background Technology

[0002] Article 6.2.4 of the national standard "Design Code for 20kV and Below Substations" (GB50053-2013) stipulates that "Transformer rooms, distribution rooms, capacitor rooms, and other rooms should be equipped with facilities to prevent rain, snow, and small animals such as snakes and rats from entering the room through skylights, ventilation windows, doors, cable trenches, etc." Article 2.0.3 of the "General Code for Building Electrical and Intelligent Equipment" (GB55024-2022) stipulates that "Electrical equipment rooms and intelligent equipment rooms in buildings should meet the following requirements: the ground or threshold should be higher than the floor level of the current floor, and the difference in elevation should not be less than 0.10m, and not less than 0.15m when located in the basement." The above standards were compiled based on actual cases; in actual cases, there have indeed been cases of rats gnawing on cables and cabinets, causing accidents; or water flowing from outside the substation into the room, causing circuit accidents.

[0003] Based on the above national standards, in actual engineering projects, rodent barriers are installed on both the interior and exterior doors of rooms such as transformer rooms, power distribution rooms, and capacitor rooms to prevent rats from entering. At the same time, a concrete threshold of 0.10m or 0.15m high is installed to prevent water from entering. The national standard requires the rodent barrier to be 0.50 meters high. The national standard drawing set shows that the rodent barrier is made of polyurethane sandwich steel plate, which is inserted into the slot in the door opening. The slot is made of four angle steel bars, all of which are fixed to the inside of the door opening with expansion bolts.

[0004] While the above methods can basically meet the needs of rodent control, they have the following drawbacks: 1. The rodent-proof panels are made of metal, making them heavy and time-consuming to install each time. In practice, they are often only installed by staff for inspections, and removed and stored aside for daily use. In some projects, the panels are even stored away in storage spaces because they take up space after being removed, thus failing to serve their daily rodent-proof purpose. 2. In emergencies such as fires requiring immediate evacuation, if the 0.5m high rodent-proof panels are in their normal installation state, they significantly hinder evacuation and may even cause falls. This contradicts the requirement that evacuation doors should not have thresholds that impede evacuation. Removing the panels before evacuation will greatly slow down the process. 3. The width of doors and doorways must meet the room evacuation width requirements and the width requirements for moving equipment. Substations are required to use fire doors according to regulations, which are expensive. Furthermore, larger door and window openings are less conducive to energy conservation and insulation, which is not practical. For both safety and economy, the width of the door and doorway should be the minimum required size. Since the installation of channel steel on both sides of the doorway for the rodent barrier occupies 0.1m to 0.2m of the doorway width, both the door and doorway need to be increased by 0.1m to 0.2m, resulting in some waste. 4. The channel steel on both sides of the door protrudes from the doorway, affecting aesthetics. 5. The doorway depth is generally equal to the wall thickness. Common wall thicknesses are 0.36m, 0.24m, 0.20m, 0.18m, 0.15m, and 0.10m. The doorway needs to accommodate the door, rodent barrier, and concrete threshold. The thickness of a typical fire door frame is 0.1m, the concrete threshold is 0.1m, and the rodent barrier and channel steel are 0.1m, for a total thickness of 0.3m. Therefore, many walls cannot accommodate these three structural elements, and the common practice is to thicken the wall at the doorway, which also results in waste and unsightly appearance. Utility Model Content

[0005] The purpose of this utility model is to provide a movable rodent-proof roller shutter for substations, which aims to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A movable rodent-proof roller shutter for a substation is installed inside a doorway. It includes a roller box located inside a threshold. The roller box contains a roller and a drive motor. One end of the roller is coaxially and fixedly connected to the main drive shaft of the drive motor. A rodent-proof roller shutter is mounted on the roller, with one end fixed to the roller and the other end fixed with an upper rod. Coaxial spools are fixed to both sides of the rodent-proof roller shutter and on the roller. Track grooves are provided on both sides of the rodent-proof roller shutter, vertically fixed to the inner wall of the doorway. The track grooves are located directly above the spools. Both ends of the upper rod are engaged within the track grooves and slidably connected to them. A pulley box is located directly above both track grooves, containing pulleys. A steel wire rope is positioned between the pulleys and the spools, with one end fixed to the upper rod and the other end fixed to the spool. The top wall of the roller box has a groove for receiving the upper rod, and the top wall and groove of the roller box have slotted holes for the rodent-proof roller shutter to pass through.

[0008] Furthermore, a limiting pressure roller is provided at the bottom of the rod groove and on both sides of the strip hole. The limiting pressure roller is tactilely connected to the rodent-proof roller shutter. A limiting pressure roller is provided on the inner side of the top wall of the roller box and the inner side of the bottom wall of the pulley box. The limiting pressure roller is tactilely connected to the wire rope.

[0009] Furthermore, the roller box is fixed to the inside of the water-retaining threshold, and the roller box and the water-retaining threshold are at the same height.

[0010] Furthermore, the rodent-proof roller shutter is set at a height of 500mm.

[0011] Furthermore, a control switch is connected to the drive motor, and the control switch is fixed on the walls on both the inside and outside of the doorway.

[0012] Furthermore, the roller box is made of stainless steel.

[0013] Compared with the prior art, this utility model has the following features and beneficial effects:

[0014] This utility model, by incorporating a roller box, a rodent-proof roller shutter, and other supporting components, replaces the traditional bulky rodent barrier with a small, lightweight rodent-proof roller shutter. While fully meeting daily rodent-proof requirements, it offers the following advantages: Firstly, a manual control switch is provided on the wall near the doorway during transport. The rodent-proof roller shutter is lowered by the switch button and raised after use, making it convenient and quick to operate. This reduces the obstruction caused by rodent-proof measures to personnel entering and exiting, minimizing the possibility of substation staff and users only using rodent barriers for inspections. Secondly, the drive motor can be easily linked with fire alarm devices. In the event of a fire or other dangerous situation, the rodent-proof roller shutter automatically lowers and rolls up when personnel reach the door, without affecting safe evacuation and preventing falls or delays during evacuation. Thirdly, the roller box and water-retaining threshold are integrated, minimizing space occupation and making renovation and installation in existing buildings feasible and convenient. Fourthly, the overall design is aesthetically pleasing, economical, and safe, possessing excellent promotional and practical value. Widespread application will generate significant economic benefits. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the planar structure of the present invention at an elevation of 0.59 meters;

[0016] Figure 2 This is a schematic diagram of the planar structure of the present invention at an elevation of 0.45 meters;

[0017] Figure 3 This is a schematic diagram of the planar structure of the present invention at an elevation of 0.25 meters;

[0018] Figure 4 This is a schematic diagram of the planar structure of the present invention at an elevation of 0.09 meters;

[0019] Figure 5 for Figure 4 Section 1-1;

[0020] Figure 6 for Figure 4 Section 2-2;

[0021] Figure 7 This is a schematic diagram of the internal structure of the roller box and track groove of this utility model;

[0022] Figure 8 This is a schematic diagram of the elevation structure of this utility model.

[0023] Attached reference numerals: 1. Water-blocking threshold; 2. Roller box; 3. Roller; 4. Drive motor; 5. Rodent-proof roller shutter; 6. Upper rod; 7. Bollard; 8. Track groove; 9. Pulley box; 10. Pulley; 11. Wire rope; 12. Rod groove; 13. Limiting pressure roller one; 14. Limiting pressure roller two. Detailed Implementation

[0024] To make the technical means, innovative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.

[0025] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0026] This utility model discloses a movable rodent-proof roller shutter for a substation. The movable rodent-proof roller shutter is installed inside the doorway, such as... Figures 1 to 8As shown, the device includes a roller box 2 located inside the water-retaining threshold 1. The roller box 2 is fixed to the inside of the water-retaining threshold 1 and has the same height as the water-retaining threshold 1. The roller box 2 contains a roller 3 and a drive motor 4. The roller box 2 is made of stainless steel. One end of the roller 3 is coaxially and fixedly connected to the main drive shaft of the drive motor 4. A rodent-proof roller shutter 5 is installed on the roller 3. One end of the rodent-proof roller shutter 5 is fixed to the roller 3, and the other end of the rodent-proof roller shutter 5 is fixedly equipped with an upper rod 6. Spools 7 are coaxially fixed on both sides of the rodent-proof roller shutter 5 and on the roller 3. Track grooves 8 are provided on both sides of the rodent-proof roller shutter 5. The track grooves 8 are vertically fixed. Fixed to the inner wall of the doorway, the track groove 8 is located directly above the spool 7. Both ends of the upper rod 6 are engaged with the track groove 8 and slidably connected to it, allowing the roller shutter to be stretched taut. This creates a structure with a border around the edges and a flat center when the rodent-proof roller shutter 5 is pulled taut, preventing rodents from gnawing on it. A pulley box 9 is located directly above both track grooves 8, fixed to the inner side of the doorway. The pulley box 9 contains pulleys 10, and a steel wire rope 11 connects the pulleys 10 and the spool 7. One end of the steel wire rope 11 is fixed to the upper rod 6, and the other end is fixed to the spool 7, thus allowing the rodent-proof roller shutter 5 to rotate as the spool 3 rotates. As the roller shutter 5 rolls up and unfolds, it simultaneously pulls the upper rod 6. The set height of the rodent-proof roller shutter 5 is 500mm. After being rolled up, it is hidden in the roller box 2 at the same height as the water-retaining threshold 1. The drive motor 4 is dual-controlled, with a control switch connected to it. The control switch is fixed on the walls inside and outside the doorway, making it convenient for people to raise and lower the rodent-proof roller shutter 5 when moving things. The drive motor 4 is linked to the fire alarm control system. In the event of a fire or other emergency, the drive motor 4 is controlled by the fire alarm system. When people arrive at the door, the rodent-proof roller shutter 5 has already automatically rolled up and fallen, without affecting people at all. For safe evacuation, the top wall of the roller box 2 is provided with a rod groove 12 for storing the upper rod 6. The specifications of the rod groove 12 are adapted to the specifications of the upper rod 6. The top wall of the roller box 2 and the inside of the rod groove 12 are provided with strip holes for the rod-proof roller shutter 5 to pass through. The bottom of the rod groove 12 and both sides of the strip holes are provided with limiting pressure rollers 13. The limiting pressure rollers 13 are tumblingly connected to the rod-proof roller shutter 5. The inner side of the top wall of the roller box 2 and the inner side of the bottom wall of the pulley box 9 are provided with limiting pressure rollers 2 14. The limiting pressure rollers 2 14 are tumblingly connected to the wire rope 11, thereby reducing the problems of jamming and excessive wear of the rod-proof roller shutter 5 and the wire rope 11 during operation.

[0027] This utility model, by setting up a roller box, a rodent-proof roller shutter, and other supporting components, replaces the traditional bulky rodent barrier with a small and lightweight rodent-proof roller shutter. While fully meeting daily rodent-proof requirements, it has the following advantages: First, when moving things, a manual control switch is provided on the wall next to the doorway. The rodent-proof roller shutter is lowered by controlling the switch button, and raised after use. It is convenient and quick to use, reducing the obstruction of personnel entry and exit caused by rodent-proof measures, and minimizing the phenomenon of substation duty personnel and users only using rodent barriers for inspection purposes; The drive motor can be easily linked with the fire alarm device. In the event of a fire or other dangerous situation, the rodent-proof roller shutter will automatically fall and roll up when personnel arrive at the door, without affecting the safe evacuation of personnel, and preventing accidents such as falls or delays during evacuation; The roller box and water-blocking threshold are considered in a coordinated manner, without occupying too much space, and are feasible and convenient for existing building renovations and additions; The overall appearance is beautiful and elegant, and the cost is economical and reasonable.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A movable rodent-proof roller shutter for a substation, wherein the movable rodent-proof roller shutter is installed inside the doorway, characterized in that: The system includes a roller box (2) located inside the threshold (1). The roller box (2) contains a roller (3) and a drive motor (4). One end of the roller (3) is coaxially and fixedly connected to the main drive shaft of the drive motor (4). A rodent-proof roller shutter (5) is mounted on the roller (3). One end of the rodent-proof roller shutter (5) is fixed to the roller (3), and the other end is fixedly mounted with an upper rod (6). Spools (7) are coaxially fixed on both sides of the rodent-proof roller shutter (5) and on the roller (3). Track grooves (8) are provided on both sides of the rodent-proof roller shutter (5). The track grooves (8) are vertically fixed to the inner wall of the doorway. The upper rod (6) is located directly above the spool (7). Both ends of the upper rod (6) are locked in the track groove (8) and slidably connected to the track groove (8). A pulley box (9) is provided directly above the two track grooves (8). A pulley (10) is provided in the pulley box (9). A steel wire rope (11) is provided between the pulley (10) and the spool (7). One end of the steel wire rope (11) is fixed to the upper rod (6), and the other end is fixed to the spool (7). The top wall of the roller box (2) is provided with a rod groove (12) for storing the upper rod (6). The top wall of the roller box (2) and the rod groove (12) are provided with strip holes for the rodless roller shutter (5) to pass through.

2. The movable rodent-proof roller shutter for a substation according to claim 1, characterized in that: The bottom of the rod groove (12) and both sides of the strip hole are provided with limiting pressure roller one (13), which is tumbling connected to the rodent-proof roller shutter (5). The inner side of the top wall of the roller box (2) and the inner side of the bottom wall of the pulley box (9) are provided with limiting pressure roller two (14), which is tumbling connected to the wire rope (11).

3. The movable rodent-proof roller shutter for a substation according to claim 2, characterized in that: The roller box (2) is fixed to the inside of the water-blocking threshold (1), and the roller box (2) and the water-blocking threshold (1) are at the same height.

4. The movable rodent-proof roller shutter for a substation according to claim 1, characterized in that: The set height of the rodent-proof roller shutter (5) is 500mm.

5. A movable rodent-proof roller shutter for a substation according to claim 1, characterized in that: The drive motor (4) is connected to a control switch, which is fixed on the walls inside and outside the doorway.

6. A movable rodent-proof roller shutter for a substation according to any one of claims 1 to 5, characterized in that: The roller box (2) is made of stainless steel.

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