Monitoring equipment with overload protection
By introducing overload protectors, power failure protectors, and alarms into the monitoring equipment, the stability issues of the monitoring equipment during current overload and power failure were resolved, enabling automatic switching and alarm prompts, thus ensuring the safe monitoring of the oil storage facility.
Patent Information
- Application Number
- CN202421672057.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-07-16
AI Technical Summary
Existing oilfield monitoring equipment lacks current overload protection, leading to equipment damage and unstable operation. In addition, it cannot automatically switch to backup power during power outages, affecting monitoring capabilities.
A monitoring device with overload protection was designed, including an overload protector, a power failure protector, and an alarm. Through a static contact inclined structure, a heat-resistant metal button, automatic switching to backup power, and warning light reminder functions, it achieves current overload protection and automatic switching to backup power.
It effectively prevents equipment damage from current overload, ensures the normal operation of monitoring equipment under overload or power failure conditions, improves equipment stability and service life, reduces costs, and provides timely alarm prompts.
Smart Images
Figure CN223502574U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of monitoring equipment technology, and more particularly to a monitoring equipment with overload protection. Background Technology
[0002] Oil storage caverns are underground facilities used to store oil and petroleum products, and they are crucial for national energy security and regulating market supply and demand. Therefore, ensuring the safe, efficient, and environmentally friendly operation of oil storage caverns is a top priority. Monitoring equipment plays a central role in the safety and management of oil storage caverns.
[0003] Monitoring systems for oil storage caverns often include numerous sensors, cameras, and communication devices that work together to ensure the safe operation of the cavern. Existing monitoring equipment for oil storage caverns often lacks protection against current overload. If an overload occurs, it can cause the monitoring equipment to overheat, damaging circuits or electronic components, thus reducing the equipment's lifespan or even causing permanent damage. It can also affect the overall stability of the monitoring system, thereby impacting the oil storage cavern's safety monitoring capabilities. Furthermore, the monitoring equipment may not automatically switch to backup power after a power outage, rendering it ineffective and affecting its usability. Summary of the Invention
[0004] To address the shortcomings of the aforementioned issues, this utility model provides a monitoring device with overload protection.
[0005] This utility model achieves the above-mentioned objective through the following technical solution: A monitoring device with overload protection includes a monitoring device body, a first wire connected to the positive terminal of the monitoring device body, a second wire connected to the negative terminal of the monitoring device body, a power failure protection box connected to the other end of the second wire, a backup power supply provided at the bottom of the power failure protection box, a third wire connected to the bottom of the power failure protection box, the other end of the third wire connected to the negative terminal of the backup power supply, a fourth wire connected to the positive terminal of the backup power supply, the other end of the fourth wire connected to the first wire, a fifth wire connected to the right end of the power failure protection box, a protector connected to the other end of the fifth wire, the protector including an alarm and an overload protector, one end of the alarm connected to the fifth wire, the other end of the alarm connected to the overload protector via a sixth wire, and the other end of the overload protector connected to the power supply network via a seventh wire.
[0006] Preferably, the overload protector includes a protective box with an internal mounting groove. A stationary terminal and a moving terminal are engaged within the mounting groove, with their bottom ends extending to the outside of the protective box. The stationary terminal is connected to the sixth wire, and the moving terminal is connected to the seventh wire. A stationary contact is located at the top of one end of the stationary terminal within the mounting groove. A bimetallic strip is fixedly mounted at the top of the other end of the moving terminal within the mounting groove. A moving contact is located at the bottom of the bimetallic strip, with the bottom surface of the moving contact abutting against the top surface of the stationary contact. A guide hole is provided at the top of the protective box, and a switch assembly is disposed within the guide hole, positioned directly above the bimetallic strip. A limit component is provided between the end of the bimetallic strip away from the moving terminal and one side of the inner wall of the mounting groove.
[0007] Preferably, the switch assembly includes a button slidably connected to the inside of the guide hole, the top of the button extending to the outside of the protective box, the bottom of the button extending into the mounting groove, and a pin inserted into the bottom of the button. A return spring is fixedly installed between the pin and the top wall of the mounting groove, and the pin is a heat-resistant metal block structure.
[0008] Preferably, the limiting component includes an adjusting screw, which is fixedly installed on one side of the inner wall of the mounting groove. A U-shaped ring is fixedly installed on the top of the adjusting screw. A limiting hole is opened at the end of the bimetallic strip away from the movable terminal, and the limiting hole is engaged with one end of the U-shaped ring.
[0009] Preferably, the top of the stationary contact has a sloped structure.
[0010] Preferably, the power failure protection box has power supply network electrodes connected to its left and right inner sides. The second wire is connected to the power supply network electrode located at the left end, and the fifth wire is connected to the power supply network electrode located at the right end. A first electromagnet is fixedly connected to the left inner side of the top surface of the power failure protection box. Backup power supply electrodes are connected to the top and bottom ends of the power failure protection box. A connecting wire is connected to the top surface of the backup power supply electrode located at the top end. The other end of the connecting wire passes through the power failure protection box and is connected to the second wire. The backup power supply electrode located at the bottom end is connected to the third wire. A conductive rod is rotatably connected to the inside of the power failure protection box via a rotating shaft. The conductive rod is slidably connected to the first electromagnet and the power supply network electrode. A first spring is fixedly connected to the bottom surface of the conductive rod. The other end of the first spring is fixedly connected to the power failure protection box. A second electromagnet is fixedly connected to the lower inner side of the right end of the power failure protection box.
[0011] Preferably, a slider is slidably connected to the right side of the top surface of the power failure protection box. The slider passes through the power failure protection box, and a second spring is fixedly connected to the outside of the slider and inside the power failure protection box. The other end of the second spring is fixedly connected to the inside of the top surface of the power failure protection box.
[0012] Preferably, the alarm includes a housing, one end of the fifth wire is connected to the housing, a third electromagnet is fixedly connected to the inner side of the bottom surface of the housing, an iron slider is slidably connected to the inner side of the housing, the iron slider is slidably connected to the third electromagnet, a warning light switch is fixedly connected to the right end of the inner side of the top surface of the housing, a button battery is fixedly connected to the top of the right end of the housing, and a warning light is fixedly connected to the center of the top surface of the housing.
[0013] Preferably, a third spring is fixedly connected to the top surface of the iron slider, and the other end of the third spring is fixedly connected to the housing.
[0014] The beneficial effects of this utility model are:
[0015] 1. The overload protector prevents current overload and reduces damage to monitoring equipment caused by current overload. By setting the top surface of the stationary contact as a sloping structure, the current conduction is increased and the resistance value is reduced, which significantly improves the conductivity and enables it to withstand larger currents. At the same time, the pin inserted at the bottom of the button is a heat-resistant metal block structure, which enables the button to withstand higher temperatures and avoid damage to the switch assembly, greatly improving its stability and reducing the cost of use.
[0016] 2. By setting up a power failure protector, the sliding connection between the first electromagnet and the conductive rod, the sliding connection between the conductive rod and the second electromagnet, and the fixed connection between the conductive rod and the first spring, the monitoring equipment body can automatically switch to the backup power supply when the overload protector cuts off the power supply network, thus ensuring the normal use of the monitoring equipment body.
[0017] 3. By setting up an alarm, the sliding connection between the third electromagnet and the iron slider, the fixed connection between the third spring and the iron slider, and the sliding connection between the iron slider and the warning light switch, the alarm function is realized. After the overload protector cuts off the power supply network, when the warning light comes on, it reminds that the monitoring equipment is currently powered by the backup power supply. When the warning light goes out, it reminds the monitoring equipment to switch to the power supply network. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the monitoring equipment of this utility model;
[0019] Figure 2 This is a schematic diagram of the overload protector of this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the power failure protection device of this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the alarm device of this utility model.
[0022] In the diagram: 1. Monitoring equipment body; 2. First wire; 3. Second wire; 4. Power failure protection box; 41. Power supply network electrode; 42. First electromagnet; 43. Backup power supply electrode; 44. Connecting wire; 45. Conductive rod; 46. First spring; 47. Second electromagnet; 48. Slider; 49. Second spring; 5. Backup power supply; 6. Third wire; 7. Fourth wire; 8. Fifth wire; 9. Alarm; 91. Box; 92. Third electromagnet; 93. Iron slider; 94. Warning light 95. Switch; 96. Button battery; 97. Warning light; 98. Third spring; 10. Overload protector; 101. Protective box; 102. Mounting slot; 103. Stationary terminal; 1031. Stationary contact; 104. Moving terminal; 105. Bimetallic strip; 1051. Moving contact; 106. Switch assembly; 1061. Button; 1062. Pin; 1063. Return spring; 107. Limit assembly; 1071. Adjusting screw; 1072. U-ring; 11. Sixth wire; 12. Seventh wire. Detailed Implementation
[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0024] like Figure 1 As shown, a monitoring device with overload protection includes a monitoring device body 1. The positive terminal of the monitoring device body 1 is connected to a first wire 2, and the negative terminal of the monitoring device body 1 is connected to a second wire 3. The other end of the second wire 3 is connected to a power failure protection box 4. A backup power supply 5 is provided at the bottom of the power failure protection box 4. A third wire 6 is connected to the bottom of the power failure protection box 4. The other end of the third wire 6 is connected to the negative terminal of the backup power supply 5. A fourth wire 7 is connected to the positive terminal of the backup power supply 5. The other end of the fourth wire 7 is connected to the first wire 2. A fifth wire 8 is connected to the right end of the power failure protection box 4. The other end of the fifth wire 8 is connected to a protector. The protector includes an alarm 9 and an overload protector 10. One end of the alarm 9 is connected to the fifth wire 8, and the other end of the alarm 9 is connected to the overload protector 10 through a sixth wire 11. The other end of the overload protector 10 is connected to the power supply network through a seventh wire 12.
[0025] like Figure 2As shown, the overload protector 10 includes a protection box 101. Inside the protection box 101 is a mounting groove 102. A stationary terminal 103 and a moving terminal 104 are engaged within the mounting groove 102, with the bottom ends of both extending to the outside of the protection box 101. The stationary terminal 103 is connected to a sixth wire 11, and the moving terminal 104 is connected to a seventh wire 12. A stationary contact 1031 is located at the top of one end of the stationary terminal 103 within the mounting groove 102. A bimetallic strip 105 is fixedly mounted at the top of one end of the moving terminal 104 within the mounting groove 102. A moving contact 1051 is located at the bottom of the bimetallic strip 105, with the bottom surface of the moving contact 1051 abutting against the top surface of the stationary contact 1031. A guide hole is provided at the top of the protection box 101, and a switch assembly 106 is disposed within the guide hole, positioned directly above the bimetallic strip 105. A limit assembly 107 is provided between one end of the off-center terminal 104 and the inner wall of one side of the mounting groove 101. The switch assembly 106 includes a button 1061 slidably connected to the inside of the guide hole. The top of the button 1061 extends to the outside of the protective box 101, and the bottom of the button 1061 extends into the mounting groove 102. A pin 1062 is inserted into the bottom of the button 1061. A return spring 1063 is fixedly installed between the pin 1062 and the top wall of the mounting groove 102. The pin 1062 is a heat-resistant metal block structure. The limit assembly 107 includes an adjusting screw 1071. The adjusting screw 1071 is fixedly installed on the inner wall of one side of the mounting groove 102. A U-shaped ring 1072 is fixedly installed at the top of the adjusting screw 1071. A limit hole is opened at the end of the bimetallic strip 105 away from the off-center terminal 104. The limit hole is engaged with one end of the U-shaped ring 1072. The top of the stationary contact 1031 is a sloping structure. With this structure, the overload protector 10 can prevent current overload and reduce damage to the monitoring equipment caused by current overload. By setting the top surface of the stationary contact 1031 as a sloping structure, it can increase current conduction, reduce resistance, and significantly improve conductivity, enabling it to withstand larger currents. At the same time, the pin 1062 inserted at the bottom of the button 1061 is a heat-resistant metal block structure, which allows the button 1061 to withstand higher temperatures, avoiding damage to the switch assembly 106, greatly improving its stability and reducing operating costs. The U-shaped ring 1072 is made of elastic material. When the moving contact 1051 contacts the stationary contact 1031, the elastic force generated by the U-shaped ring 1072 can be used to squeeze and limit the bimetallic strip 105, ensuring normal current flow.
[0026] like Figure 3As shown, the left and right ends of the inner side of the power failure protection box 4 are connected to power supply network electrodes 41. The second wire 3 is connected to the power supply network electrode 41 located on the left end, and the fifth wire 8 is connected to the power supply network electrode 41 located on the right end. The left end of the inner side of the top surface of the power failure protection box 4 is fixedly connected to the first electromagnet 42. The upper and lower ends of the power failure protection box 4 are connected to backup power supply electrodes 43. The top surface of the backup power supply electrode 43 located at the upper end is connected to a connecting wire 44. The other end of the connecting wire 44 passes through the power failure protection box 4 and is connected to the second wire 3. The backup power supply electrode 43 located at the lower end is connected to the third wire 6. The inner side of the power failure protection box 4 is connected to the third wire 6 via a rotating... A conductive rod 45 is rotatably connected to the shaft. The conductive rod 45 is slidably connected to the first electromagnet 42 and to the power supply network electrode 41. A first spring 46 is fixedly connected to the bottom end of the conductive rod 45. The other end of the first spring 46 is fixedly connected to the power failure protection box 4. A second electromagnet 47 is fixedly connected to the lower inner side of the right end face of the power failure protection box 4. A slider 48 is slidably connected to the right side of the top face of the power failure protection box 4, penetrating the power failure protection box 4. A second spring 49 is fixedly connected to the outer side of the slider 48 and located inside the power failure protection box 4. The other end of the second spring 49 is fixedly connected to the inner side of the top of the power failure protection box 4. With this structure, the sliding connection between the first electromagnet 42 and the conductive rod 45, the sliding connection between the conductive rod 45 and the second electromagnet 47, and the fixed connection between the conductive rod 45 and the first spring 46 enable the monitoring equipment body 1 to automatically switch to the backup power supply 5 when the overload protector 10 cuts off the power supply network, ensuring the normal operation of the monitoring equipment body 1.
[0027] like Figure 4 As shown, the alarm 9 includes a housing 91. One end of the fifth wire 8 is connected to the housing 91. A third electromagnet 92 is fixedly connected to the inner side of the bottom surface of the housing 91. An iron slider 93 is slidably connected to the inner side of the housing 91, and the iron slider 93 is slidably connected to the third electromagnet 92. A warning light switch 94 is fixedly connected to the right end of the inner side of the top surface of the housing 91. A button battery 95 is fixedly connected to the top of the right end of the housing 91. A warning light 96 is fixedly connected to the center of the top surface of the housing 91. A third spring 97 is fixedly connected to the top surface of the iron slider 93, and the other end of the third spring 97 is fixedly connected to the housing 91. With this structure, the sliding connection between the third electromagnet 92 and the iron slider 93, the fixed connection between the third spring 97 and the iron slider 93, and the sliding connection between the iron slider 93 and the warning light switch 94 achieve the function of alerting and alarming. After the overload protector 10 cuts off the power supply network, the warning light 96 lights up to indicate that the backup power supply 5 is supplying power to the monitoring equipment body 1.
[0028] During use, the monitoring device 1 is powered by the power supply network. At this time, within the overload protector 10, the moving contact 1051 and the stationary contact 1031 are in contact. The elastic force generated by the U-ring 1072 squeezes and limits the bimetallic strip 105, ensuring normal current flow. When the load current between the moving contact 1051 and the stationary contact 1031 is too large, the temperature of the moving contact 1051 and the bimetallic strip 105 will rise, causing the bimetallic strip 105 to deform. This gradually eliminates the squeezing force of the U-ring 1072 on the bimetallic strip 105 until the moving contact 1051 and the stationary contact 1031 separate, thus disconnecting the current and protecting the monitoring device 1. When the current is disconnected, the first electromagnet 42 loses its magnetism due to the power failure, and the conductive rod 45 rotates to the right under the action of the first spring 46. Since the second electromagnet 47 is powered by an external power source, it is now connected, making the second electromagnet 47 magnetic. The conductive rod 45 is attracted by the second electromagnet 47, causing the conductive rod 45 to slide in connection with the backup power electrode 43. During the rotation, the conductive rod 45 lifts the slider 48, compressing the second spring 49. After the conductive rod 45 rotates to the designated position, the second spring 49 causes the slider 48 to return to its original position. At this time, the first spring 46 is compressed. Because the conductive rod 45 is sliding in connection with the backup power electrode 43, the monitoring device body 1 is connected to the first wire 2. The second wire 3, the third wire 6, and the fourth wire 7 are connected in series and powered by the backup power supply 5 to maintain the normal operation of the monitoring equipment body 1. At the same time, due to the disconnection of the current, the third electromagnet 92 loses its magnetism, and the iron slider 93 slides upward under the action of the third spring 97, slidingly connecting with the warning light switch 94. At this time, the circuit between the warning light 96 and the button battery 95 is connected, and the warning light 96 lights up. When the temperature of the bimetallic strip 105 drops, pressing the button 1061 downward can bend the bimetallic strip 105 downward, causing the moving contact 1051 and the stationary contact 1031 to re-contact. At this time, the circuit is connected, the third electromagnet 92 regains its magnetism, and the iron slider 93 moves downward. The displacement is re-attracted by the third electromagnet 92, the electrical connection between the warning light 96 and the button battery 95 is broken, and the warning light 96 goes out, thus reminding the staff to switch the monitoring equipment body 1 from the backup power supply 5 back to the power supply network. During the switch, the staff cuts off the electrical connection between the external power supply and the second electromagnet 47, causing the second electromagnet 47 to lose its magnetism. Then, the slider 48 is pulled upward. Since the first spring 46 is in a compressed state, after the limit is released, the conductive rod 45 rotates to the left, and the first electromagnet 42 regains its magnetism, thus attracting the conductive rod 45, so that the conductive rod 45 is reconnected to the power supply network electrode 41. At this time, the monitoring equipment body 1 is powered by the power supply network.
[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A monitoring device with overload protection, comprising a monitoring device body (1), characterized in that: The positive terminal of the monitoring device body (1) is connected to a first wire (2), and the negative terminal of the monitoring device body (1) is connected to a second wire (3). The other end of the second wire (3) is connected to a power failure protection box (4). A backup power supply (5) is installed at the bottom of the power failure protection box (4). A third wire (6) is connected to the bottom of the power failure protection box (4). The other end of the third wire (6) is connected to the negative terminal of the backup power supply (5). The positive terminal of the backup power supply (5) is connected to a fourth wire (7). (7) The other end is connected to the first wire (2). The right end of the power failure protection box (4) is connected to the fifth wire (8). The other end of the fifth wire (8) is connected to a protector. The protector includes an alarm (9) and an overload protector (10). One end of the alarm (9) is connected to the fifth wire (8). The other end of the alarm (9) is connected to the overload protector (10) through the sixth wire (11). The other end of the overload protector (10) is connected to the power supply network through the seventh wire (12).
2. The monitoring device with overload protection according to claim 1, characterized in that: The overload protector (10) includes a protective box (101), inside which is provided a mounting groove (102). A stationary terminal (103) and a moving terminal (104) are engaged within the mounting groove (102), with the bottom ends of the stationary terminal (103) and the moving terminal (104) extending to the outside of the protective box (101). The stationary terminal (103) is connected to the sixth wire (11), and the moving terminal (104) is connected to the seventh wire (12). A stationary contact (1031) is provided at the top of one end of the stationary terminal (103) located within the mounting groove (102). The moving terminal (104)... 4) A bimetallic strip (105) is fixedly installed at the top of one end of the mounting groove (102). A moving contact (1051) is provided at the bottom of the bimetallic strip (105). The bottom surface of the moving contact (1051) abuts against the top surface of the stationary contact (1031). A guide hole is provided at the top of the protective box (101). A switch assembly (106) is provided in the guide hole. The switch assembly (106) is located directly above the bimetallic strip (105). A limit assembly (107) is provided between the end of the bimetallic strip (105) away from the moving terminal (104) and the inner wall of one side of the mounting groove (102).
3. A monitoring device with overload protection according to claim 2, characterized in that: The switch assembly (106) includes a button (1061) slidably connected to the inside of the guide hole. The top of the button (1061) extends to the outside of the protective box (101), and the bottom of the button (1061) extends into the mounting groove (102). A pin (1062) is inserted into the bottom of the button (1061). A return spring (1063) is fixedly installed between the pin (1062) and the top wall of the mounting groove (102). The pin (1062) is a heat-resistant metal block structure.
4. A monitoring device with overload protection according to claim 3, characterized in that: The limiting component (107) includes an adjusting screw (1071), which is fixedly installed on the inner wall of one side of the mounting groove (102). A U-shaped ring (1072) is fixedly installed on the top of the adjusting screw (1071). A limiting hole is opened at the end of the bimetallic strip (105) away from the movable terminal (104), and the limiting hole is engaged with one end of the U-shaped ring (1072).
5. A monitoring device with overload protection according to claim 4, characterized in that: The top of the stationary contact (1031) has a sloping structure.
6. A monitoring device with overload protection according to claim 1, characterized in that: The power outage protection box (4) has power supply network electrodes (41) connected to its inner left and right sides. The second wire (3) is connected to the power supply network electrode (41) located on the left side, and the fifth wire (8) is connected to the power supply network electrode (41) located on the right side. The first electromagnet (42) is fixedly connected to the inner left side of the top surface of the power outage protection box (4). The power outage protection box (4) has backup power supply electrodes (43) connected to its upper and lower ends. The top surface of the backup power supply electrode (43) located at the upper end is connected to a connecting wire (44). The other end of the connecting wire (44) passes through the power outage protection box (4) and... The second wire (3) is connected, and the backup power electrode (43) at the lower end is connected to the third wire (6). The inner side of the power failure protection box (4) is rotatably connected to a conductive rod (45) via a rotating shaft. The conductive rod (45) is slidably connected to the first electromagnet (42). The conductive rod (45) is slidably connected to the power supply network electrode (41). The bottom end face of the conductive rod (45) is fixedly connected to a first spring (46). The other end of the first spring (46) is fixedly connected to the power failure protection box (4). The lower inner side of the right end face of the power failure protection box (4) is fixedly connected to a second electromagnet (47).
7. A monitoring device with overload protection according to claim 6, characterized in that: A slider (48) is slidably connected to the right side of the top surface of the power failure protection box (4). The slider (48) passes through the power failure protection box (4). A second spring (49) is fixedly connected to the outside of the slider (48) and inside the power failure protection box (4). The other end of the second spring (49) is fixedly connected to the inside of the top surface of the power failure protection box (4).
8. A monitoring device with overload protection according to claim 1, characterized in that: The alarm (9) includes a housing (91), one end of the fifth wire (8) is connected to the housing (91), a third electromagnet (92) is fixedly connected to the inner side of the bottom surface of the housing (91), an iron slider (93) is slidably connected to the inner side of the housing (91), the iron slider (93) is slidably connected to the third electromagnet (92), a warning light switch (94) is fixedly connected to the right end of the inner side of the top surface of the housing (91), a button battery (95) is fixedly connected to the top of the right end of the housing (91), and a warning light (96) is fixedly connected to the center of the top surface of the housing (91).
9. A monitoring device with overload protection according to claim 8, characterized in that: The top surface of the iron slider (93) is fixedly connected to a third spring (97), and the other end of the third spring (97) is fixedly connected to the housing (91).