Alarm device for centrally installed switchgear
By introducing a dust cover and a motor drive system into the smoke alarm device of the center cabinet, the dust is automatically cleaned, and the sensitivity reduction and false alarm problems caused by the accumulation of dust in the smoke alarm are solved, reducing the cost of manual cleaning.
Patent Information
- Application Number
- CN202422266684.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The smoke alarms in the existing mid-mounted cabinets are prone to accumulate dust after long-term use, resulting in reduced sensitivity and false alarms. Cleaning up dust requires manual disassembly, which consumes a lot of manpower and material resources.
A smoke alarm device with a dustproof cover is designed, which uses a motor to drive the dustproof cover to rotate, automatically clean up dust, reduce friction and facilitate disassembly through the locking structure, and reduce false alarms.
Automatic dust cleaning is realized, reducing manual cleaning costs, improving the sensitivity and reliability of smoke alarms, and reducing the possibility of false alarms.
Smart Images
Figure CN223155542U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of alarm devices, and in particular relates to an alarm device used for a central cabinet. Background Art
[0002] Smoke alarm, also known as smoke sensor alarm, is a device that prevents fire by monitoring the smoke concentration. Its core component is the ion smoke sensor, which is advanced in technology and works stably and reliably, with better performance than gas-sensitive resistor fire alarm. Smoke alarm is widely used in important fire prevention places such as homes, factories, office buildings, hospitals, schools and museums. It can sound the alarm in time at the beginning of a fire, buying precious time for personnel evacuation and fire fighting. From the technical principle point of view, smoke alarm is mainly divided into two types: ion alarm and photoelectric alarm. The sensor of the ion alarm contains radioactive substances and can generate electric current. When the particles in the smoke enter the sensor and disrupt the current, the alarm will start the alarm sound. The photoelectric alarm emits an infrared beam. When there are smoke particles in the room, the beam is scattered onto the sensor, and the alarm will be triggered when a certain threshold is reached.
[0003] In the currently known center cabinet smoke alarm, after long-term use, a large amount of dust and other materials often accumulate in various pores of the smoke alarm, which has a certain impact on the sensitivity and accuracy of the smoke alarm. However, cleaning the dust often consumes a lot of manpower, material resources and financial resources, and the smoke alarm often needs to be disassembled for cleaning. There is still a need for an alarm device for a center cabinet that can automatically clean dust. Utility Model Content
[0004] The utility model belongs to the technical field of alarm devices, can automatically clean dust in the alarm device, reduce the possibility of false alarms of the central cabinet alarm device, does not need manual disassembly to clean dust, smoke and other impurities, and reduces the cost of manual cleaning.
[0005] The technical solution adopted by the utility model is as follows:
[0006] An alarm device for a center cabinet comprises a center cabinet body, a control system is arranged in the middle of the front side of the body, a safety door is arranged in front of the control system, a display screen is arranged at the upper end of the control system, and a connecting rod is arranged on the right side of the display screen; the other end of the connecting rod is connected to a smoke alarm device, including a buzzer device fixedly connected to the lower end of the connecting rod, the lower end of the buzzer device is fixedly connected to a monitoring device, and the lower end of the monitoring device is provided with a dust cover.
[0007] In a preferred embodiment, a bottom plate is fixedly connected to the lower end of the monitoring device. A card slot is provided on the bottom plate, and a dust-proof cover fixing seat is clamped to the lower end of the bottom plate. A card tooth is fixedly connected to the dust-proof cover fixing seat. A rectangular convex block is provided at the lower end of the card tooth. A rubber rod in a flat shape is fixedly connected to the upper end of the rectangular convex block, and a triangular convex block is fixedly connected to the upper end of the rubber rod.
[0008] In a preferred embodiment, a motor is arranged inside the monitoring device. A rotating shaft is fixedly connected to the output end of the motor. A cross bar is fixedly connected to the other end of the rotating shaft, and both ends of the cross bar are fixedly connected to the edge positions of the dust-proof cover respectively.
[0009] In a preferred embodiment, an annular sliding rod is fixedly connected to the upper edge of the dust-proof cover. The sliding rod fits the outer edge of the dust-proof cover and bends around for one week. The dust-proof cover and the sliding rod are nested in a sliding groove inside the dust-proof cover fixing seat.
[0010] In a preferred embodiment, the periphery of the dust-proof cover presents a hole structure. The holes penetrate through the periphery of the dust-proof cover, and the holes on the dust-proof cover are distributed in an array in the vertical direction, and the holes are distributed in an annular array around the center of the dust-proof cover.
[0011] In a preferred embodiment, a dust-proof bottom plate is fixedly connected to the bottom of the dust-proof cover. A plurality of inclined holes are provided on the dust-proof bottom plate. The orientation of the inclined holes points to the clockwise rotation direction, and the inclined holes are distributed in an annular array.
[0012] The technical effects achieved by the present utility model are as follows:
[0013] During the operation of the medium-voltage switchgear cabinet by the staff, the control system controls the operation among the various components of the medium-voltage switchgear cabinet. When a fault such as smoking or fuming occurs in the medium-voltage switchgear cabinet, the monitoring device in the alarm device can detect the smoke alarm in the first time; after long-term use, a large amount of dust will accumulate on the dust-proof cover and the dust-proof bottom plate. The output point of the motor drives the rotating shaft, and then drives the cross bar fixedly connected to the dust-proof cover to rotate, so that the dust-proof cover body can rotate, thereby throwing out the dust accumulated for a long time; the sliding rod on the dust-proof cover can greatly reduce the friction force when the dust-proof cover rotates, making the rotation of the dust-proof cover smoother. At the same time, the card teeth on the dust-proof cover fixing seat can be engaged in the card holes on the bottom plate of the monitoring device, and the card teeth can be pressed to remove the dust-proof cover and its fixedly connected dust-proof cover fixing seat.
[0014] The present utility model belongs to the technical field of alarm devices, can automatically clean the dust in the alarm device, reduce the possibility of false alarms of the medium-voltage switchgear cabinet alarm device, does not require manual disassembly to clean dust, soot and other impurities, and reduces the cost of manual cleaning. Description of the Drawings
[0015] Figure 1 is the main structure diagram of the present utility model;
[0016] Figure 2 is the exploded view of the internal structure of the main body of the present utility model;
[0017] Figure 3 is the schematic structural diagram of the monitoring device and its dust-proof cover fixing seat of the present utility model;
[0018] Figure 4 is the schematic structural diagram of the dust-proof cover and its dust-proof cover fixing seat of the present utility model;
[0019] Figure 5 is the schematic structural diagram of the dust-proof bottom plate of the present utility model.
[0020] In the attached drawings, the list of components represented by each reference numeral is as follows:
[0021] 1, medium-voltage switchgear main body; 2, display screen; 3, control system; 4, fuse door; 5, connecting rod; 6, buzzer device; 7, monitoring device; 701, bottom plate; 8, dust-proof cover; 801, hole; 802, slide bar; 9, engaging tooth; 901, triangular protrusion; 902, rubber rod; 903, rectangular protrusion; 904, card slot; 10, motor; 1001, rotating shaft; 11, dust-proof cover fixing seat; 1101, sliding groove; 12, dust-proof bottom plate; 1201, inclined hole; 13, cross bar. Detailed implementation manners
[0022] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given in conjunction with the drawings in the specification.
[0023] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.
[0024] As Figure 1 and Figure 2 shown, an alarm device for a medium-voltage switchgear includes a medium-voltage switchgear main body 1. A control system 3 is provided in the middle of the front side of the medium-voltage switchgear main body 1. A fuse door 4 is provided in front of the control system 3. A display screen 2 is provided at the upper end of the control system 3. A connecting rod 5 is provided on the right side of the display screen 2; the other end of the connecting rod 5 is connected to a smoke alarm device, including a buzzer device 6 fixedly connected to the lower end of the connecting rod 5. A monitoring device 7 is fixedly connected to the lower end of the buzzer device 6. A dust-proof cover 8 is clamped at the lower end of the monitoring device 7.
[0025] Specifically, during the operation of the medium-voltage switchgear cabinet by the staff, the control system 3 controls the operation among the various components of the medium-voltage switchgear cabinet. When the medium-voltage switchgear cabinet malfunctions and emits smoke, the monitoring device 7 in the alarm device can detect the smoke in the first time. After the monitoring device 7 detects the signal, it can transmit the signal to the buzzer device 6, and the buzzer device 6 emits a sound for alarm. After long-term use, a large amount of dust will accumulate on the dust-proof cover 8 and the dust-proof bottom plate 12. The output end of the motor 10 drives the rotating shaft 1001, and then drives the cross bar 13 fixedly connected to the dust-proof cover 8 to rotate, so that the body of the dust-proof cover 8 can rotate, thereby throwing out the dust accumulated for a long time. The sliding rod 802 on the dust-proof cover 8 can greatly reduce the friction force when the dust-proof cover 8 rotates, making the rotation of the dust-proof cover 8 smoother. At the same time, the engaging teeth 9 on the fixing seat of the dust-proof cover 8 can be engaged in the engaging holes on the bottom plate 701 of the monitoring device 7, and the engaging teeth 9 can be pressed to remove the dust-proof cover 8 and its fixedly connected dust-proof cover fixing seat 11.
[0026] As Figure 2 shown, the lower end of the monitoring device 7 is fixedly connected with a bottom plate 701. The bottom plate 701 is provided with a card slot 904. The lower end of the bottom plate 701 is provided with a dust-proof cover fixing seat 11. The dust-proof cover fixing seat 11 is fixedly connected with engaging teeth 9. The lower end of the engaging teeth 9 has a rectangular convex block 903. The upper end of the rectangular convex block 903 is fixedly connected with a flat rubber rod 902. The upper end of the rubber rod 902 is fixedly connected with a triangular convex block 901.
[0027] Specifically, the rectangular convex block 903 can drive the rubber rod 902 to move slightly inward with the pressing of the human hand. The triangular convex block 901 also moves inward under the drive of the rubber rod 902, so that the engaging teeth 9 can deform under the pressing condition and completely snap into the hole 801. The whole engaging teeth 9 are made of PVC hard rubber material, so that the engaging teeth 9 can still be used and become wear-resistant after long-term use. The engaging teeth 9 are snapped into the card slot 904, and the card slot 904 has the corresponding size and shape as the engaging teeth 9.
[0028] As Figure 4 shown, a motor 10 is arranged inside the monitoring device 7. The output end of the motor 10 is fixedly connected with a rotating shaft 1001. The other end of the rotating shaft 1001 is fixedly connected with a cross bar 13. The two ends of the cross bar 13 are respectively fixedly connected to the edge positions of the dust-proof cover 8.
[0029] Specifically, the output end of the motor 10 drives the cross bar 13 to rotate, thereby driving the dust-proof cover 8 to rotate. The cross bar 13 is welded to the edge position of the dust-proof cover 8, so that the power of the output end of the motor 10 can be directly transmitted to the dust-proof cover 8 in the first time.
[0030] As Figure 4As shown, an annular slide bar 802 is fixedly connected to the upper edge of the dust cover 8. The slide bar 802 fits the outer edge of the dust cover 8 and bends around for one week. The dust cover 8 and the slide bar 802 are nested in the chute 1101 inside the dust cover fixing seat 11.
[0031] Specifically, the material of the slide bar 802 surrounding the dust cover 8 is polished lightweight aluminum alloy, so that the resistance during rotation on the dust cover fixing seat 11 is as small as possible. When the slide bar 802 nested on the outer periphery of the dust cover 8 is placed in the chute 1101, it can rotate driven by the motor 10.
[0032] As Figure 4 shown, the four sides of the dust cover 8 present a hole 801 structure. The holes 801 penetrate the outer periphery of the dust cover 8, and the holes 801 on the dust cover 8 are arranged in an array in the vertical direction and in a circular array around the center of the dust cover 8.
[0033] Specifically, the size of the holes 801 provided on the peripheral side of the dust cover 8 should be as small and dense as possible to better prevent dust. When the motor 10 drives the dust cover 8 to rotate, the dust distributed on the peripheral side will be thrown out by the dust cover 8.
[0034] As Figure 5 shown, a dust-proof bottom plate 12 is fixedly connected to the bottom of the dust cover 8. A plurality of inclined holes 1201 are formed in the dust-proof bottom plate 12. The orientation of the inclined holes 1201 points to the clockwise rotation direction, and the inclined holes 1201 are arranged in a circular array.
[0035] Specifically, the direction of the inclined holes 1201 is clockwise. Such a design can make the dust-proof bottom plate 12 generate a downward wind force when rotating, so that the dust can be more effectively thrown out from the dust-proof bottom plate 12, avoiding dust accumulation on the bottom plate 701. At the same time, the hole structure of the dust-proof bottom plate 12 itself can make the dust not easily accumulate on the dust-proof bottom plate 12. The dust-proof bottom plate 12 and the dust cover 8 are fixedly connected.
[0036] The working principle of the present utility model is as follows: When operating the medium-mounted cabinet, the staff controls the operation among the various components of the medium-mounted cabinet through the control system 3. When the medium-mounted cabinet fails and emits smoke, the monitoring device 7 in the alarm device can detect the smoke in the first time. After the monitoring device 7 detects the signal, it can transmit the signal to the buzzer device 6, and the buzzer device 6 emits a sound for alarm; After long-term use, a large amount of dust will accumulate on the dust-proof cover 8 and the dust-proof bottom plate 12. The output end of the motor 10 drives the rotating shaft 1001, and then drives the cross bar 13 fixedly connected to the dust-proof cover 8 to rotate, so that the body of the dust-proof cover 8 can rotate, thereby throwing out the dust accumulated for a long time; The slide bar 802 on the dust-proof cover 8 can greatly reduce the friction force when the dust-proof cover 8 rotates, making the rotation of the dust-proof cover 8 smoother. At the same time, the teeth 9 on the fixed seat of the dust-proof cover 8 can be engaged in the card slot 904 on the bottom plate 701 of the monitoring device 7, and the teeth 9 can be pressed to remove the dust-proof cover 8 and its fixedly connected dust-proof cover fixing seat 11.
[0037] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention are implemented according to the conventional means in the art without special explanation and limitation.
Claims
1. An alarm device for a medium-voltage switchgear cabinet, characterized in that: It includes a medium-voltage switchgear main body (1), in the middle of the front side of the medium-voltage switchgear main body (1), a control system (3) is provided, in front of the control system (3), a safety door (4) is provided, at the upper end of the control system (3), a display screen (2) is provided, and on the right side of the display screen (2), a connecting rod (5) is provided; the other end of the connecting rod (5) is connected to a smoke alarm device, including a buzzer device (6) fixedly connected to the lower end of the connecting rod (5), at the lower end of the buzzer device (6), a monitoring device (7) is fixedly connected, and at the lower end of the monitoring device (7), a dust-proof cover (8) is clamped.
2. The alarm device for a medium-voltage switchgear according to claim 1, characterized in that: At the lower end of the monitoring device (7), a bottom plate (701) is fixedly connected, on the bottom plate (701), a card slot (904) is opened, at the lower end of the bottom plate (701), a dust-proof cover fixing seat (11) is clamped, on the dust-proof cover fixing seat (11), a card tooth (9) is fixedly connected, at the lower end of the card tooth (9), a rectangular convex block (903) is provided, at the upper end of the rectangular convex block (903), a rubber rod (902) in a flat shape is fixedly connected, and at the upper end of the rubber rod (902), a triangular convex block (901) is fixedly connected.
3. The alarm device for a medium-voltage switchgear according to claim 1, characterized in that: Inside the monitoring device (7), a motor (10) is provided, at the output end of the motor (10), a rotating shaft (1001) is fixedly connected, at the other end of the rotating shaft (1001), a cross bar (13) is fixedly connected, and the two ends of the cross bar (13) are respectively fixedly connected to the edge positions of the dust-proof cover (8).
4. The alarm device for a medium-voltage switchgear according to claim 1, characterized in that: At the upper end edge of the dust-proof cover (8), an annular sliding rod (802) is fixedly connected, the sliding rod (802) fits the outer edge of the dust-proof cover (8) and bends around for one week, and the dust-proof cover (8) and the sliding rod (802) are nested in a sliding groove (1101) inside the dust-proof cover fixing seat (11).
5. The alarm device for a medium-voltage switchgear according to claim 1, characterized in that: The periphery of the dust-proof cover (8) has a hole (801) structure, the holes (801) penetrate through the periphery of the dust-proof cover (8), and the holes (801) on the dust-proof cover (8) are arranged in an array in the vertical direction, and the holes (801) are arranged in an annular array around the center of the dust-proof cover (8).
6. The alarm device for a medium-voltage switchgear according to claim 5, characterized in that: At the bottom of the dust-proof cover (8), a dust-proof bottom plate (12) is fixedly connected, on the dust-proof bottom plate (12), a number of inclined holes (1201) are opened, the orientation of the inclined holes (1201) points to the clockwise rotation direction, and the inclined holes (1201) are arranged in an annular array.