A leakage protector with self-checking function
By introducing a self-detection protection mechanism into the leakage protector, and using coolant and buoyancy trigger mechanisms, the overheating problem caused by overload or aging of the leakage protector is solved, and the self-test and cooling of the equipment is realized, and safety and reliability are improved.
Patent Information
- Application Number
- CN202510036045.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-04-04
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During use, existing leakage protectors are prone to overheating due to overload or components aging, and lack self-test function, which may cause fire and threaten personal and property safety.
A leakage protector with self-test function is designed, using an installation fixing mechanism and a self-test protection mechanism. The self-detection protection mechanism includes a temperature sensor, a pump body, a cooling pipe frame and an indicator light. It reduces the temperature of the body through the flow of coolant and prompts abnormal conditions through the buoyancy trigger mechanism.
Effectively prevent equipment overheating, extend service life, reduce maintenance and replacement costs, improve personal and property safety, and reduce system complexity and costs.
Smart Images
Figure CN119764087A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of leakage protectors, in particular to a leakage protector with a self-checking function. Background Art
[0002] A leakage protector, also known as a leakage switch or leakage circuit breaker, is a safety device used to detect and protect leakage in circuits. The leakage protector is mainly used to cut off power in time when a leakage fault occurs in the equipment, thereby protecting the equipment and personal safety. It can not only prevent electrical fires caused by leakage, but also quickly cut off the circuit when a person is electrocuted to avoid electric shock accidents. In addition, the leakage protector also has overload and short-circuit protection functions, which can protect the line or motor from damage caused by overload and short circuit. Under normal circumstances, it can also be used as an infrequent switching start of the line. During the use of existing leakage protectors, the circuit load connected to the leakage protector is too large, exceeding its carrying capacity, and the device will heat up due to overload, or as the use time increases, the components inside the leakage protector may gradually age, resulting in performance degradation or even failure, thereby causing heating. However, most leakage protectors can only perform leakage detection for other lines and do not have a self-test function. If it is not discovered in time, long-term high-temperature operation may cause dangerous situations such as fire, posing a threat to personal and property safety.
[0003] Therefore, the present invention proposes a leakage protector with a self-checking function to solve the above problems. Summary of the invention
[0004] In view of this, the technical problem to be solved by the present invention is to propose a leakage protector with a self-checking function to solve the problem of overheating of the leakage protector due to a fault in the prior art.
[0005] To achieve the above object, the present invention provides the following technical solution: a leakage protector with a self-checking function, comprising a body, and also comprising: a mounting and fixing mechanism and a self-checking and protecting mechanism, wherein the self-checking and protecting mechanism is arranged below the mounting and fixing mechanism; The installation and fixing mechanism is used to be installed and fixed with the machine body; The self-detection protection mechanism is used to reduce the outer surface temperature of the body.
[0006] Preferably, the mounting and fixing mechanism includes a positioning plate, which is arranged at the front end of the machine body, a mounting plate is fixedly connected to the top of the positioning plate, the mounting plate is located above the machine body, and a threaded rod is threadedly connected to the right side of the mounting plate.
[0007] Preferably, the right side of the mounting plate is symmetrically and slidably connected with guide columns, the guide columns all pass through the right side of the mounting plate, the left ends of the guide columns are fixedly connected with fixed disks, and the fixed disks are rotatably connected to the threaded rods.
[0008] Preferably, an L-shaped connecting rod is fixedly connected to the outer surface of the fixed plate, and the L-shaped connecting rod is slidably connected to the mounting plate. A U-shaped sliding rod is slidably connected to the upper surface of the mounting plate, and the U-shaped sliding rod is fixedly connected to the L-shaped connecting rod.
[0009] Preferably, a fixed cylinder is fixedly connected through the top of the mounting plate, a piston is slidably connected inside the fixed cylinder, a T-shaped column is fixedly connected to the top of the piston, the T-shaped column is in contact with the U-shaped sliding rod, and a suction nozzle is fixedly connected to the bottom end of the fixed cylinder.
[0010] Preferably, the self-detection protection mechanism includes a pump body, which is fixedly connected to the upper surface of the mounting plate, a temperature sensor is fixedly connected to the bottom of the upper end of the mounting plate, the temperature sensor is electrically connected to the pump body, and an indicator light is fixedly connected to the upper surface of the mounting plate.
[0011] Preferably, the liquid inlet end of the pump body is fixedly connected to a liquid inlet pipe, the liquid outlet end of the pump body is fixedly connected to a connection box, the connection box passes through the mounting plate, the bottom of the connection box is fixedly connected to a cooling pipe rack, and the right end of the cooling pipe rack is fixedly connected to a liquid outlet pipe.
[0012] Preferably, a guide block is slidably connected to the right side of the inner wall of the connecting box, a floating block is fixedly connected to the left side of the guide block, a sliding column is fixedly connected to the top of the guide block, a first contact is fixedly connected to the top of the sliding column, the sliding column passes through the connecting box and the mounting plate, and the sliding columns are slidably connected to the connecting box and the mounting plate.
[0013] Preferably, an L-shaped support rod is fixedly connected to the upper surface of the mounting plate, a second contact is fixedly connected to the bottom of the left end of the L-shaped support rod, and the second contact is electrically connected to the first contact to control the on and off of the indicator light.
[0014] Compared with the prior art, the present invention provides a leakage protector with a self-checking function, which has the following beneficial effects: 1. Through the setting of the self-detection protection mechanism, the coolant flows in the cooling pipe rack, so that the flowing coolant takes away part of the heat on the outer surface of the machine through the cooling pipe rack, thereby reducing the temperature of the machine body and preventing the machine body from overheating, thereby effectively preventing equipment damage. By timely cooling, the service life of the equipment can be extended and the maintenance and replacement costs caused by overheating can be reduced; In addition, by utilizing the effect of buoyancy, the guide block drives the slide column to rise, so that the first contact point approaches and contacts the second contact point, and thus, through the setting of the indicator light, the staff can quickly discover the abnormal situation of the machine body, so that the staff can immediately take measures to intervene, thereby preventing the abnormal situation from further deteriorating. The buoyancy trigger mechanism does not require additional power supply or sensor, reducing the complexity and cost of the system. In addition, by reducing the downtime and maintenance costs caused by equipment failure, the cost can be further reduced. 2. The fixing mechanism is installed to clamp the fixing plate and the mounting plate, and the negative pressure generated by the suction nozzle is used to fix the mounting plate. The fixing effect of the mounting plate is improved in two ways, making the subsequent self-detection protection mechanism more stable when in use, preventing the self-detection protection mechanism from shaking and reducing the detection and cooling effect of the machine body. If the machine body fails or is under maintenance, the fixing mechanism can be disassembled and installed with a new machine body, improving its applicability and flexibility. In addition, the negative pressure generated by the suction nozzle is used to adsorb the body shell and clamp the fixed plate and the mounting plate. Compared with the traditional installation with screws and bolts, it is not only more convenient to disassemble and assemble, but also does not require drilling or other operations that may damage the body, thus providing better protection for the body shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural diagram of the present invention; Figure 2 For the present invention Figure 1 The three-dimensional structure diagram on the middle right; Figure 3 For the present invention Figure 1 Partial three-dimensional structure diagram; Figure 4 For the present invention Figure 2 Partial three-dimensional structure diagram; Figure 5 For the present invention Figure 4 Middle front three-dimensional structure diagram; Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle; Figure 7 For the present invention Figure 6 Partial cross-sectional structure diagram.
[0016] In the figure: 1. Body; 201, mounting plate; 202, positioning plate; 203, threaded rod; 204, guide column; 205, fixing plate; 206, L-shaped connecting rod; 207, U-shaped sliding rod; 208, fixing cylinder; 209, piston; 210, suction nozzle; 211, T-shaped column; 301, pump body; 302, temperature sensor; 303, indicator light; 304, liquid inlet pipe; 305, connection box; 306, cooling pipe rack; 307, guide block; 308, floating block; 309, sliding column; 310, first contact; 311, L-shaped support rod; 312, second contact. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0018] The present invention is further described in detail below based on the accompanying drawings and embodiments.
[0019] Embodiments of the present invention: Please refer to Figures 1 to 4 As shown: In order to solve the problem mentioned in the technical solution, the embodiment of the present application provides a leakage protector with a self-detection function, including a body 1, and also including: a mounting and fixing mechanism and a self-detection and protection mechanism, wherein the self-detection and protection mechanism is arranged below the mounting and fixing mechanism; The mounting and fixing mechanism is used for mounting and fixing with the machine body 1; The self-detection protection mechanism is used to reduce the temperature of the outer surface of the body 1.
[0020] The installation and fixing mechanism includes a positioning plate 202, which is arranged at the front end of the body 1, and a mounting plate 201 is fixedly connected to the top of the positioning plate 202, and the mounting plate 201 is located above the body 1. A threaded rod 203 is threadedly connected to the right side of the mounting plate 201, and a guide column 204 is symmetrically slidably connected to the right side of the mounting plate 201. The guide columns 204 all pass through the right side of the mounting plate 201, and the left ends of the guide columns 204 are fixedly connected to a fixing plate 205, and the fixing plate 205 is rotatably connected to the threaded rod 203. The outer surface of the fixing plate 205 An L-shaped connecting rod 206 is fixedly connected, and the L-shaped connecting rod 206 is slidably connected to the mounting plate 201. A U-shaped sliding rod 207 is slidably connected to the upper surface of the mounting plate 201, and the U-shaped sliding rod 207 is fixedly connected to the L-shaped connecting rod 206. A fixed cylinder 208 is fixedly connected to the top of the mounting plate 201, and a piston 209 is slidably connected in the fixed cylinder 208. A T-shaped column 211 is fixedly connected to the top of the piston 209, and the T-shaped column 211 is in contact with the U-shaped sliding rod 207. A suction nozzle 210 is fixedly connected to the bottom end of the fixed cylinder 208; The upper surface of the U-shaped slide bar 207 is set as an inclined surface. When the U-shaped slide bar 207 slides, the height difference generated by the inclined surface can drive the T-shaped column 211 to move.
[0021] In the prior art, the circuit load connected to the leakage protector is too large, exceeding its carrying capacity, and the device will heat up due to overload, or as the use time increases, the components inside the leakage protector may gradually age, resulting in performance degradation or even failure, thereby causing heating. However, most leakage protectors can only perform leakage detection for other circuits and do not have a self-detection function. If it is not discovered in time, long-term high-temperature operation may cause dangerous situations such as fire, posing a threat to personal and property safety. Compared with the prior art, the fixing effect of the mounting plate 201 is improved by fixing in two ways at the same time, so that subsequent The self-detection protection mechanism is more stable when in use, which prevents the self-detection protection mechanism from reducing the detection and cooling effect of the body 1 due to shaking. If the body 1 fails or is under maintenance later, the installation and fixing mechanism can be disassembled and installed with the new body 1, thereby improving its applicability and flexibility. The negative pressure generated by the suction nozzle 210 is used to adsorb the shell of the body 1 and clamp the fixing plate 205 and the mounting plate 201. Compared with the traditional installation with screws and bolts, it is not only more convenient to disassemble and assemble, but also does not require drilling of the body 1 or other operations that may damage the body 1, thereby providing better protection for the shell of the body 1.
[0022] For further examples, please refer to Figures 4 to 7 As shown: The self-detection protection mechanism includes a pump body 301, which is fixedly connected to the upper surface of the mounting plate 201, a temperature sensor 302 is fixedly connected to the bottom of the upper end of the mounting plate 201, the temperature sensor 302 is electrically connected to the pump body 301, an indicator light 303 is fixedly connected to the upper surface of the mounting plate 201, a liquid inlet end of the pump body 301 is fixedly connected to a liquid inlet pipe 304, a liquid outlet end of the pump body 301 is fixedly connected to a connection box 305, the connection box 305 runs through the mounting plate 201, the bottom of the connection box 305 is fixedly connected to a cooling pipe rack 306, the right end of the cooling pipe rack 306 is fixedly connected to a liquid outlet pipe, and the connection box 30 A guide block 307 is slidably connected to the right side of the inner wall, a floating block 308 is fixedly connected to the left side of the guide block 307, a sliding column 309 is fixedly connected to the top of the guide block 307, a first contact 310 is fixedly connected to the top of the sliding column 309, the sliding column 309 passes through the connection box 305 and the mounting plate 201, the sliding columns 309 are slidably connected to the connection box 305 and the mounting plate 201, an L-shaped support rod 311 is fixedly connected to the upper surface of the mounting plate 201, a second contact 312 is fixedly connected to the bottom of the left end of the L-shaped support rod 311, and the second contact 312 is electrically connected to the first contact 310 to control the on and off of the indicator light 303; The cooling tube rack 306 is arranged in an arc shape, and fits with the machine body 1 when in use, thereby increasing the contact area with the machine body 1 and further increasing the cooling effect on the machine body 1 .
[0023] Implementation of this embodiment can take action before overheating causes serious damage, thereby effectively preventing equipment damage. Timely cooling can extend the service life of the equipment, reduce maintenance and replacement costs due to overheating, and enable staff to take immediate measures to intervene, thereby preventing the abnormal situation from further deteriorating. The buoyancy trigger mechanism does not require additional power supplies or sensors, reducing the complexity and cost of the system. In addition, costs can be further reduced by reducing downtime and maintenance costs caused by equipment failure.
[0024] Everything in the above example works like this: In the initial state: the piston 209 is located at the lower end of the inner surface of the fixed cylinder 208. At this time, the air pressure between the fixed cylinder 208 and the piston 209 is normal. At the same time, the liquid inlet pipe 304 is connected to the external coolant storage tank, and the liquid outlet pipe of the cooling pipe rack 306 is connected to the external receiving collection tank.
[0025] The following is the working process of installing and fixing the fixing mechanism and the body 1: When in use, the mounting plate 201 is placed above the machine body 1, so that the positioning plate 202 is in contact with the left end of the machine body 1, the fixing plate 205 is located on the right side of the machine body 1, and the suction nozzle 210 is in contact with the outer surface of the machine body 1, and the temperature sensor 302 is in contact with the outer surface of the machine body 1, and then the threaded rod 203 is turned. Since the threaded rod 203 is threadedly connected with the mounting plate 201, and the threaded rod 203 is rotatably connected with the fixing plate 205, when the threaded rod 203 rotates, the fixing plate 205 is pushed by the threaded rod 203 and guided by the guide column 204. , and approaches the machine body 1. At the same time, the fixed plate 205 drives the L-shaped connecting rod 206 to slide along the mounting plate 201. Then, driven by the L-shaped connecting rod 206, the U-shaped slide bar 207 slides to the left at the same time. Due to the setting of the inclined surface at the top of the U-shaped slide bar 207, when the U-shaped slide bar 207 slides, the inclined surface of the U-shaped slide bar 207 will gradually squeeze the T-shaped column 211 to rise. Then, the rising of the T-shaped column 211 can pull the piston 209 to slide in the fixed cylinder 208, thereby expanding the space between the bottom surface of the piston 209 and the fixed cylinder 208. , thereby generating negative pressure, and the negative pressure generated causes negative pressure to be generated inside the suction nozzle 210, so that the bottom of the suction nozzle 210 is adsorbed with the body 1, and then the fixing plate 205 and the mounting plate 201 are clamped, and the negative pressure generated by the suction nozzle 210 is used to fix the mounting plate 201. At the same time, the fixing effect of the mounting plate 201 is improved by fixing in two ways, so that the subsequent self-detection protection mechanism is more stable when in use, and the self-detection protection mechanism is prevented from reducing the cooling effect with the body 1 due to shaking. At the same time, when the body 1 needs to be fixed During maintenance, the threaded rod 203 can be rotated in the opposite direction, so that the fixed plate 205 is away from the machine body 1, thereby canceling the clamping of the machine body 1, and the U-shaped slide bar 207 slides to the right. At this time, the inclined surface of the U-shaped slide bar 207 cancels the support for the T-shaped column 211, so that the piston 209 and the T-shaped column 211 are reset through the negative pressure between the piston 209 and the fixed cylinder 208, so that the air pressure and dust inside the fixed cylinder 208 are normal, so that the suction nozzle 210 cancels the adsorption of the machine body 1, and then the mounting plate 201 can be removed, which is convenient for the maintenance of the machine body 1; By installing the fixing mechanism, the fixing plate 205 and the mounting plate 201 are clamped, and the mounting plate 201 is fixed by using the negative pressure generated by the suction nozzle 210. At the same time, the fixing effect of the mounting plate 201 is improved in two ways, so that the subsequent self-detection protection mechanism is more stable when in use, and the self-detection protection mechanism is prevented from reducing the detection and cooling effect with the body 1 due to shaking. In addition, if the body 1 fails or is repaired later, the installation fixing mechanism can be disassembled and installed with a new body 1, thereby improving its applicability and flexibility. In addition, the negative pressure generated by the suction nozzle 210 is used to adsorb the shell of the machine body 1, and the fixing plate 205 and the mounting plate 201 are clamped. Compared with the traditional screw and bolt installation, it is not only more convenient to disassemble and assemble, but also does not require drilling or other operations that may damage the machine body 1, which plays a better role in protecting the shell of the machine body 1. Please refer to the above working process Figures 1 to 4 .
[0026] The following is the working process of the self-detection protection mechanism in the body 1 to reduce the temperature of the outer surface of the body 1: Furthermore, when the machine body 1 is overheated due to a failure of the external cooling fan, the temperature sensor 302 detects an overheat signal of the machine body 1 and turns on the pump body 301. The power generated by the pump body 301 causes the liquid inlet pipe 304 to pump the coolant in the external coolant storage tank into the connecting box 305, and then enters the cooling pipe rack 306 through the connecting box 305, and then is discharged from the liquid outlet pipe in the cooling pipe rack 306. The coolant flows in the cooling pipe rack 306, so that the flowing coolant takes away part of the heat on the outer surface of the machine body 1 through the cooling pipe rack 306, thereby reducing the temperature of the machine body 1 and preventing the machine body 1 from overheating. The problem of thermal expansion, looseness or deformation of key components of the machine body 1 due to overheating is avoided, and the energy loss of the machine body 1 is avoided, and the durability of the machine body 1 is improved. At the same time, when the coolant enters the connection box 305, the floating block 308 will be affected by the buoyancy of the coolant, driving the guide block 307 to rise, and the guide block 307 drives the slide column 309 to rise, so that the first contact 310 approaches and contacts the second contact 312. At this time, the indicator light 303 is started. At this time, if the staff comes to check the machine body 1, they can find the problem of overheating of the machine body 1 at the first time, so as to take countermeasures in time for the problem, thereby improving the maintenance efficiency of the machine body 1; By setting the self-detection protection mechanism, when the machine body 1 is overheated, the temperature sensor 302 can detect it immediately, and the pump body 301 can be controlled to start cooling the machine body 1, thereby effectively preventing equipment damage. By timely cooling, the service life of the equipment can be extended, and the maintenance and replacement costs caused by overheating can be reduced; In addition, by utilizing the effect of buoyancy, the guide block 307 drives the slide column 309 to rise, so that the first contact 310 approaches and contacts the second contact 312, so that the staff can quickly find the abnormal situation of the machine body 1 through the setting of the indicator light 303, so that the staff can immediately take measures to intervene, thereby preventing the abnormal situation from further deteriorating. The buoyancy trigger mechanism does not require additional power supply or sensor, reducing the complexity and cost of the system. In addition, by reducing the downtime and maintenance cost caused by equipment failure, the cost can be further reduced. Please refer to the above working process Figures 4 to 7 .
[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A leakage protector with a self-checking function, comprising a body (1), characterized in that: It also includes: a mounting and fixing mechanism and a self-detection and protection mechanism, wherein the self-detection and protection mechanism is arranged below the mounting and fixing mechanism; The mounting and fixing mechanism is used for mounting and fixing with the machine body (1); The self-detection protection mechanism is used to reduce the temperature of the outer surface of the body (1).
2. The leakage protector with self-checking function according to claim 1, characterized in that: The mounting and fixing mechanism comprises a positioning plate (202), the positioning plate (202) being arranged at the front end of the machine body (1), the top of the positioning plate (202) being fixedly connected to a mounting plate (201), the mounting plate (201) being located above the machine body (1), and the right side of the mounting plate (201) being threadedly connected to a threaded rod (203).
3. The leakage protector with self-checking function according to claim 2, characterized in that: The right side of the mounting plate (201) is symmetrically and slidably connected to a guide column (204), the guide columns (204) all pass through the right side of the mounting plate (201), the left ends of the guide columns (204) are fixedly connected to a fixing plate (205), and the fixing plate (205) is rotatably connected to the threaded rod (203).
4. The leakage protector with self-checking function according to claim 3, characterized in that: An L-shaped connecting rod (206) is fixedly connected to the outer surface of the fixing plate (205), and the L-shaped connecting rod (206) is slidably connected to the mounting plate (201). A U-shaped sliding rod (207) is slidably connected to the upper surface of the mounting plate (201), and the U-shaped sliding rod (207) is fixedly connected to the L-shaped connecting rod (206).
5. The leakage protector with self-checking function according to claim 4, characterized in that: A fixed cylinder (208) is fixedly connected through the top of the mounting plate (201), a piston (209) is slidably connected inside the fixed cylinder (208), a T-shaped column (211) is fixedly connected to the top of the piston (209), the T-shaped column (211) is in contact with the U-shaped sliding rod (207), and a suction nozzle (210) is fixedly connected to the bottom of the fixed cylinder (208).
6. The leakage protector with self-checking function according to claim 2, characterized in that: The self-detection protection mechanism comprises a pump body (301), the pump body (301) is fixedly connected to the upper surface of a mounting plate (201), a temperature sensor (302) is fixedly connected to the bottom of the upper end of the mounting plate (201), the temperature sensor (302) is electrically connected to the pump body (301), and an indicator light (303) is fixedly connected to the upper surface of the mounting plate (201).
7. The leakage protector with self-checking function according to claim 6, characterized in that: The liquid inlet end of the pump body (301) is fixedly connected to a liquid inlet pipe (304), the liquid outlet end of the pump body (301) is fixedly connected to a connection box (305), the connection box (305) passes through the mounting plate (201), the bottom of the connection box (305) is fixedly connected to a cooling pipe rack (306), and the right end of the cooling pipe rack (306) is fixedly connected to a liquid outlet pipe.
8. The leakage protector with self-checking function according to claim 7, characterized in that: A guide block (307) is slidably connected to the right side of the inner wall of the connection box (305), a floating block (308) is fixedly connected to the left side of the guide block (307), a sliding column (309) is fixedly connected to the top of the guide block (307), a first contact (310) is fixedly connected to the top of the sliding column (309), the sliding column (309) passes through the connection box (305) and the mounting plate (201), and the sliding column (309) is slidably connected to the connection box (305) and the mounting plate (201).
9. The leakage protector with self-checking function according to claim 8, characterized in that: An L-shaped support rod (311) is fixedly connected to the upper surface of the mounting plate (201), a second contact (312) is fixedly connected to the bottom of the left end of the L-shaped support rod (311), and the second contact (312) and the first contact (310) are electrically connected to control the on / off of the indicator light (303).