Small animal prevention entrance guard for transformer substation

Abstract

The utility model discloses a small animal prevention entrance guard for a transformer substation, and belongs to the technical field of entrance guards for transformer substations. A small animal prevention entrance guard for a transformer substation comprises a channel installed on the surface of an enclosing wall and used for entering and exiting, the inner side of the enclosing wall is provided with a closing door assembly used for closing the channel, the two ends of the bottom of the channel are provided with a first rat guard and a second rat guard respectively, and the first rat guard and the second rat guard are both obliquely arranged at the bottom of the channel. The upper ends of the first rat-proof plate and the second rat-proof plate face the direction far away from the enclosing wall; the first rat-proof plate and the second rat-proof plate are arranged at the two ends of the channel, so that the two ends of the channel are respectively shielded, small animals are prevented from entering the air chamber, the first rat-proof plate and the second rat-proof plate alternately block the small animals by arranging the traction assembly, and workers can conveniently carry heavy objects to enter the air chamber.

Description

Technical Field

[0001] This utility model relates to the field of substation access control technology, and in particular to a substation access control system that prevents small animals from entering. Background Technology

[0002] Currently, at the entrances to important rooms such as the main control room, power distribution room, cable room, and relay protection room in substations, there is a board called a rodent-proof baffle. The purpose is to prevent small animals such as rats from entering the substation operating bays, thereby causing equipment failure.

[0003] While existing rodent-proof barriers can effectively keep small animals out, the excessively high thresholds make it extremely inconvenient for staff to move items in and out. Therefore, this application proposes an access control system that can prevent small animals from entering while facilitating the movement of items by staff. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a substation access control system to prevent small animals from entering.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A small animal-proof access control system for a substation includes a passageway installed on the surface of a perimeter wall for entry and exit. A sealing door assembly for closing the passageway is provided on the inner side of the perimeter wall. A first rodent-proof plate and a second rodent-proof plate are respectively provided at both ends of the bottom of the passageway. The first and second rodent-proof plates are both obliquely arranged at the bottom of the passageway, and the upper ends of the first and second rodent-proof plates face away from the perimeter wall.

[0007] In some embodiments, both the first and second rodent-proof plates slide obliquely at the bottom of the channel, and both the first and second rodent-proof plates slide via a traction assembly, which is disposed on the lower surface of the channel via a housing.

[0008] In some embodiments, the traction assembly includes a plurality of springs fixed to the lower ends of the first and second rodent-proof plates. The springs are used to push the first and second rodent-proof plates out of the bottom of the channel, respectively. A threaded column is rotatably mounted at the bottom of the box body. A movable block is threadedly connected to the surface of the threaded column. Two traction ropes are fixed to the surface of the movable block. The other ends of the two traction ropes are fixed to the lower ends of the first and second rodent-proof plates, respectively, through guide wheels.

[0009] In some embodiments, a weighbridge is installed at the bottom of the passage, and the weighbridge is located between the first rodent-proof plate and the second rodent-proof plate.

[0010] In some embodiments, a shield is provided at the upper end of the first rodent-proof plate. The shield is horizontally arranged, and the two ends of the shield slide vertically on the inner wall of the channel via multiple first sliders. The first rodent-proof plate slides horizontally on the lower surface of the shield via multiple second sliders. The side of the shield near the sealing door abuts against the surface of the sealing door.

[0011] In some embodiments, two infrared sensors are respectively provided on the inner side of the channel near both ends. One of the infrared sensors is used to detect the passage of foreign objects at a height of 0-40cm above the ground, and the other infrared sensor is used to detect the passage of foreign objects at a height of 70-120cm above the ground.

[0012] In some embodiments, an ultrasonic repellent for driving away small animals is installed at the top of the channel.

[0013] In some embodiments, the sealing door assembly includes a ground track mounted on the ground and two sealing doors that slide on the surface of the ground track via racks and gears.

[0014] Compared with the prior art, this utility model provides a substation access control system to prevent small animals from entering, which has the following beneficial effects.

[0015] 1. This utility model, by setting a first rodent-proof plate and a second rodent-proof plate at both ends of the passage, respectively blocks both ends of the passage to prevent small animals from entering the air chamber. By setting a traction component, the first rodent-proof plate and the second rodent-proof plate alternately block small animals, making it convenient for staff to carry heavy objects into the air chamber.

[0016] 2. This utility model, by setting up an infrared sensor and an ultrasonic repellent, drives away small animals when they approach the air chamber, further reducing the probability of small animals entering the air chamber.

[0017] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the orthogonal axial structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the lateral axial structure of this utility model.

[0020] Figure 3 This is a frontal cross-sectional view of the present invention.

[0021] Figure 4This is a schematic diagram of the axial cross-sectional structure of this utility model.

[0022] Figure 5 This is an exploded structural diagram of the shielding plate in this utility model.

[0023] Figure 6 This is a schematic diagram of the side axial cross-sectional structure of this utility model.

[0024] Figure 7 This utility model Figure 6 Enlarged structural diagram at point A in the middle.

[0025] Figure 8 This utility model Figure 4 Enlarged structural diagram at point B.

[0026] In the picture:

[0027] 1. Fence; 2. Passageway; 3. Enclosure assembly; 301. Ground track; 302. Enclosure door; 303. Rack and pinion; 304. Gear; 4. Box body; 5. First rodent-proof plate; 501. Baffle plate; 502. First slider; 503. Second slider; 6. Second rodent-proof plate; 7. Traction assembly; 701. Spring; 702. Threaded column; 703. Moving block; 704. Traction rope; 705. Guide wheel; 8. Weighbridge; 9. Infrared sensor; 10. Ultrasonic repellent. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Reference Figure 1-8 A small animal-proof access control system for a substation includes a passage 2 installed on the surface of a perimeter wall 1 for entry and exit. A sealing door assembly 3 is provided on the inner side of the perimeter wall 1 for sealing the passage 2. A first rodent-proof plate 5 and a second rodent-proof plate 6 are respectively provided at both ends of the bottom of the passage 2. The first rodent-proof plate 5 and the second rodent-proof plate 6 are both obliquely arranged at the bottom of the passage 2, and the upper ends of the first rodent-proof plate 5 and the second rodent-proof plate 6 face away from the perimeter wall 1.

[0030] The enclosed door assembly 3 includes a ground track 301 installed on the ground and two sealing doors 302 that slide on the surface of the ground track 301. Both sealing doors 302 slide on the inner side of the enclosure 1. Two racks 303 are installed on the inner side of the enclosure 1. A drive motor is fixed on the side of the two sealing doors 302 away from the passage 2. A gear 304 is fixed on the upper end of the output shaft of the drive motor. The gear 304 meshes with the two racks 303 respectively.

[0031] It is understandable that by setting up channel 2 and installing the first rodent-proof plate 5 and the second rodent-proof plate 6 at both ends of channel 2, the two ends of channel 2 are blocked to prevent small animals from entering the air chamber. By setting the first rodent-proof plate 5 and the second rodent-proof plate 6 at an angle, the effect of preventing small animals is further improved. The drive motor drives the gear 304 to rotate. Under the meshing relationship between the gear 304 and the rack 303, the sealing door 302 is driven to slide on the surface of the ground rail 301, thereby sealing or opening the air chamber.

[0032] Specifically, both the first rodent-proof plate 5 and the second rodent-proof plate 6 slide obliquely at the bottom of the channel 2. Both the first rodent-proof plate 5 and the second rodent-proof plate 6 slide via a traction assembly 7, which is located inside the housing 4. The housing 4 is fixed to the lower surface of the channel 2. The traction assembly 7 includes multiple springs 701 fixed to the lower ends of the first rodent-proof plate 5 and the second rodent-proof plate 6. The lower ends of the springs 701 are fixed to the bottom of the housing 4. The springs 701 are used to push the first rodent-proof plate 5 and the second rodent-proof plate 6 out of the bottom of the channel 2, respectively. A threaded post rotates at the bottom of the housing 4. 702, a threaded column 702 is threadedly connected to a movable block 703. The movable block 703 slides at the bottom of the box 4. Two traction ropes 704 are fixed to the surface of the movable block 703. The threaded column 702 and the movable block 703 are located between the first rodent-proof plate 5 and the second rodent-proof plate 6. The other ends of the two traction ropes 704 are fixed to the lower ends of the first rodent-proof plate 5 and the second rodent-proof plate 6 respectively through guide wheels 705. The guide wheels 705 are installed at the bottom of the box 4. The threaded column 702 is driven to rotate by a drive motor, which is fixed at the bottom of the box 4.

[0033] A weighbridge 8 is installed at the bottom of the passage 2, and the weighbridge 8 is located between the first rodent-proof plate 5 and the second rodent-proof plate 6, with the weighbridge 8 close to the second rodent-proof plate 6.

[0034] Understandably, in the initial state, the first rodent-proof plate 5 extends out from the bottom of the passage 2, and the second rodent-proof plate 6 retracts to the bottom of the passage 2, flush with the ground. This allows the first rodent-proof plate 5 to block the area near the sealing door 302, preventing small animals from entering the air chamber. Workers can directly step over the first rodent-proof plate 5 to enter the air chamber, minimizing the impact on them. The weight passing through the passage 2 is detected by the weighbridge 8. When the weight detected by the weighbridge 8 exceeds 100 kg, it indicates that a worker has entered the air chamber carrying a heavy item. At this point, the drive motor rotates the threaded column 702, causing the threaded column 702 to move... The movable block 703 moves, and under the action of the traction rope 704, it pulls the first rodent-proof plate 5 to the bottom of the passage 2, making it easier for staff to enter the air chamber. At the same time, the movable block 703 releases the traction rope 704 that pulls the second rodent-proof plate 6, causing the spring 701 to push the second rodent-proof plate 6 to rise. The second rodent-proof plate 6 blocks the passage 2, thus preventing small animals from following staff into the air chamber when they pass through the passage 2. The operation of the drive motor can be remotely controlled. When the staff pushes items such as trolleys without exceeding the preset weight, they can use the remote control to make the drive motor retract the first rodent-proof plate 5 back to the bottom of the passage 2.

[0035] Specifically, a shield 501 is provided at the upper end of the first rodent-proof plate 5. The shield 501 is horizontally set, and the two ends of the shield 501 slide vertically on the inner wall of the channel 2 through multiple first sliders 502. Multiple second sliders 503 are fixed at the upper end of the first rodent-proof plate 5. The first rodent-proof plate 5 slides horizontally on the lower surface of the shield 501 through multiple second sliders 503. The side of the shield 501 near the sealing door 302 abuts against the surface of the sealing door 302.

[0036] Understandably, due to the large gap between the first rodent-proof plate 5 and the sealing door 302, to prevent small animals with good jumping ability from crossing the first rodent-proof plate 5 and entering the gap, thus making them undetectable to staff and entering the air chamber after the sealing door 302 is opened, a shield 501 is installed to block the gap between the first rodent-proof plate 5 and the sealing door 302. When the first rodent-proof plate 5 slides up and down, the second slider 503 drives the shield 501 to move up and down along the inner wall of the passage 2 via the first slider 502, thereby allowing the shield 501 to rise and fall with the first rodent-proof plate 5, preventing the shield 501 from affecting staff entry and exit. Since the first rodent-proof plate 5 slides at an angle, the first rodent-proof plate 5 slides on the lower surface of the shield 501 via the second slider 503.

[0037] Specifically, two infrared sensors 9 are installed on the inner side of the channel 2 near both ends. The two infrared sensors are used to detect the height when passing through the channel 2. One infrared sensor 9 is used to detect the passage of foreign objects at a height of 0-40cm above the ground, and the other infrared sensor 9 is used to detect the passage of foreign objects at a height of 70-120cm above the ground. An ultrasonic repellent 10 is installed at the top inside the channel 2.

[0038] Understandably, since the second rodent-proof panel 6 is normally retracted to the bottom of the channel 2, when a small animal enters the channel 2, the infrared sensor 9 located at the lower position detects the passage of a foreign object, while the infrared sensor 9 located at the higher position does not detect the passage of a foreign object. This indicates that a small animal has entered the channel 2, thus triggering the ultrasonic repellent 10 to drive the small animal away. However, when both infrared sensors 9 detect the passage of a foreign object, it indicates that a staff member has entered the channel 2, and the ultrasonic repellent 10 is not triggered.

[0039] In this invention, under normal conditions, the sealing door 302 is closed, the first rodent-proof plate 5 extends out from the bottom of the passage 2, and the second rodent-proof plate 6 retracts to the bottom of the passage 2, flush with the ground. This allows the first rodent-proof plate 5 to block small animals from entering the air chamber near the sealing door 302. When a worker enters the passage 2, both infrared sensors 9 at different heights detect the passage of a foreign object, indicating that a worker has entered the passage 2. If the weight detected by the weighbridge 8 is less than 100 kg, it indicates that the worker is not carrying a heavy item. Therefore, the worker can directly open the sealing door 302 and step over the first rodent-proof plate 5 to enter the air chamber. When a worker passes through and the weight detected by the weighbridge 8 is greater than 100 kg, it indicates that a worker has entered the air chamber carrying a heavy item. At this time, the drive motor rotates the threaded column 702, causing the threaded column 702 to move the moving block 703. The traction rope 7... Under the action of 04, the first rodent-proof plate 5 is pulled to the bottom of the passage 2, making it easier for staff to enter the air chamber. At the same time, the moving block 703 releases the traction rope 704 that pulls the second rodent-proof plate 6, causing the spring 701 to push the second rodent-proof plate 6 upward. The second rodent-proof plate 6 blocks the passage 2, thus preventing small animals from following staff into the air chamber when they pass through the passage 2. The operation of the drive motor can be remotely controlled. When the staff pushes items such as trolleys and the weight does not exceed the preset value, the drive motor can be remotely controlled to retract the first rodent-proof plate 5 back to the bottom of the passage 2. When the infrared sensor 9 located at the lower position detects a foreign object passing through, but the infrared sensor 9 located at the higher position does not detect a foreign object passing through, and a small animal enters the passage 2, the ultrasonic repellent 10 is triggered to drive the small animal away. Through the combination of driving away and blocking, small animals are prevented from entering the air chamber and affecting the operation of the substation.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A small animal-proof access control system for substations, characterized in that, It includes a passage (2) installed on the surface of the wall (1) for entry and exit. The inner side of the wall (1) is provided with a sealing door assembly (3) for sealing the passage (2). The bottom ends of the passage (2) are respectively provided with a first rodent-proof plate (5) and a second rodent-proof plate (6). The first rodent-proof plate (5) and the second rodent-proof plate (6) are both obliquely arranged at the bottom of the passage (2), and the upper ends of the first rodent-proof plate (5) and the second rodent-proof plate (6) face away from the wall (1).

2. The substation access control system for preventing small animals from entering, as described in claim 1, is characterized in that... The first rodent-proof plate (5) and the second rodent-proof plate (6) slide obliquely at the bottom of the channel (2). The first rodent-proof plate (5) and the second rodent-proof plate (6) slide through the traction component (7), which is installed on the lower surface of the channel (2) through the box (4).

3. The substation access control system for preventing small animals from entering, as described in claim 2, is characterized in that... The traction assembly (7) includes multiple springs (701) fixed to the lower ends of the first rodent-proof plate (5) and the second rodent-proof plate (6). The springs (701) are used to push the first rodent-proof plate (5) and the second rodent-proof plate (6) to extend out of the bottom of the channel (2). A threaded column (702) is rotatably mounted on the bottom of the box (4). A moving block (703) is threadedly connected to the surface of the threaded column (702). Two traction ropes (704) are fixed to the surface of the moving block (703). The other ends of the two traction ropes (704) are fixed to the lower ends of the first rodent-proof plate (5) and the second rodent-proof plate (6) respectively through guide wheels (705).

4. The substation access control system for preventing small animals from entering, as described in claim 1, is characterized in that... A weighbridge (8) is installed at the bottom of the channel (2), and the weighbridge (8) is located between the first rodent-proof plate (5) and the second rodent-proof plate (6).

5. A substation access control system for preventing small animals from entering, as described in claim 1, is characterized in that... The first rodent-proof plate (5) is provided with a shield (501) at its upper end. The shield (501) is horizontally set. The two ends of the shield (501) slide vertically on the inner wall of the channel (2) through multiple first sliders (502). The first rodent-proof plate (5) slides horizontally on the lower surface of the shield (501) through multiple second sliders (503). The side of the shield (501) near the sealing door (302) abuts against the surface of the sealing door (302).

6. A substation access control system for preventing small animals from entering, as described in claim 1, is characterized in that... Two infrared sensors (9) are respectively installed on the inner side of the channel (2) near both ends. One of the infrared sensors (9) is used to detect foreign objects passing through at a height of 0-40cm above the ground, and the other infrared sensor (9) is used to detect foreign objects passing through at a height of 70-120cm above the ground.

7. A substation access control system for preventing small animals from entering, as described in claim 1, is characterized in that, An ultrasonic repellent (10) for driving away small animals is installed at the top of the channel (2).

8. A substation access control system for preventing small animals from entering, as described in claim 1, is characterized in that, The enclosure assembly (3) includes a ground track (301) installed on the ground and two enclosure doors (302) sliding on the surface of the ground track (301), the enclosure doors (302) sliding on the surface of the ground track (301) by means of a rack (303) and a gear (304).

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