Override trip prevention protection device
By designing a hollow structure anti-step trip protection device, the threaded screw and dry powder bucket driven by the servo motor are used, combined with smoke sensors and microcontroller control, the automatic monitoring and extinguishing of the fire is achieved, and the existing devices cannot effectively prevent fires. The problem of this has improved security and asset protection effect.
Patent Information
- Application Number
- CN202421109429.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The existing anti-level tripping device cannot effectively prevent fires when a failure occurs, making the fire difficult to control, causing asset losses and safety hazards.
A protective device for anti-step tripping is designed, with a hollow structure protective shell, and a dry powder bucket and a threaded screw driven by a servo motor are installed inside. The dry powder bucket is automatically turned on and discharged from the dry powder to extinguish the fire through a smoke sensor and a microcontroller.
Effectively monitor and control internal fires, avoid the expansion of fires, reduce asset losses, improve use safety, and reduce safety hazards.
Smart Images
Figure CN222531313U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric switch protection accessories, in particular to an anti-over-tripping protection device. Background Art
[0002] Overtripping means that when a power system fails, the circuit breaker with the protection setting priority tripping should be used to cut off the fault circuit, but the circuit breaker at the upper level trips to cut off the fault, causing a large-scale power outage and tripping behavior.
[0003] In order to make the circuit more convenient to use, it is usually necessary to set a tripping device separately on each sub-circuit, which can effectively avoid over-tripping, and multiple tripping devices are usually aggregated and then placed inside the box;
[0004] However, when the anti-over-tripping device fails and causes a fire, the box body cannot protect it, and thus cannot control the fire in time, resulting in a large loss of assets and easily causing safety hazards to personnel. In order to solve the above technical problems, the utility model proposes an anti-over-tripping protection device. Utility Model Content
[0005] The utility model aims to provide an anti-over-tripping protection device to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-over-level tripping protection device, comprising a protective shell, the interior of the protective shell is a hollow structure design, the hollow groove inside the protective shell forms an inner electrical cavity, a material port is fixedly installed at the center position of the upper surface of the protective shell, the material port is arranged through the upper surface of the protective shell, a dry powder barrel is interconnected on the upper surface of the top of the material port, the dry powder barrel is filled with dry powder, a threaded screw is installed below the material port and located inside the protective shell through a bearing for rotation, the threaded screw is a forward and reverse screw, and threaded blocks are threadedly connected on the forward and reverse threads of the threaded screw, vertical plates are fixedly installed on the upper surfaces of two threaded blocks, sealing plates are fixedly installed on the outer walls of the two vertical plates close to the material port, the upper surface of the sealing plate is horizontally flush with the lower surface of the material port, one end of the threaded screw is fixedly connected to the output shaft of a servo motor, and the servo motor is fixedly installed on the outer wall of one side of the protective shell.
[0007] Preferably, a guide rail is fixedly installed on the inner wall of the back side of the protective shell, and two limiting slides are slidably connected to the guide rail, and one end of the two limiting slides away from the guide rail is fixedly connected to two threaded blocks respectively.
[0008] Preferably, an anti-over-tripping device is fixedly installed inside the protective shell, smoke sensors are fixedly installed on both sides of the lower surface of the top of the protective shell, a single-chip microcomputer is fixedly installed on the inner wall of one side of the protective shell, the smoke sensor is electrically connected to the single-chip microcomputer, and the single-chip microcomputer is electrically connected to the servo motor.
[0009] Preferably, a front cover plate is fixedly mounted on the front outer wall of the protective shell by fixing bolts, an observation window is opened on the front cover plate, and transparent tempered glass is installed in the observation window.
[0010] Preferably, mounting ears are fixedly mounted on both sides of the upper surface and the lower surface of the protective shell by welding, and mounting holes are opened on the mounting ears.
[0011] Preferably, both sides of the upper surface of the dry powder barrel are provided with powder injection ports communicating therewith, the powder injection ports are plugged with sealing plugs, and the dry powder barrel adopts an inverted trapezoidal structure design.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The utility model can effectively monitor the fire condition inside the protection device through the smoke condition. When the smoke value reaches a preset threshold, the fire protection structure will be controlled by the single-chip microcomputer to effectively extinguish and control the internal fire through the discharged dry powder to avoid further expansion of the fire. The fire can be effectively discovered and handled in time, effectively reducing property losses. At the same time, it has good safety in use and effectively reduces safety hazards in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the front three-dimensional structure of the protection device of an embodiment of the utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of the protection device of the embodiment of the utility model from the front;
[0016] Figure 3 This is a bottom bottom view of a protective device according to an embodiment of the utility model;
[0017] Figure 4 This is a schematic diagram of the threaded screw transmission structure of an embodiment of the utility model;
[0018] Figure 5 For the utility model embodiment Figure 4 A schematic diagram of the enlarged structure of region A;
[0019] Figure 6 It is a schematic diagram of the functional module conduction structure of an embodiment of the utility model.
[0020] In the figure: 1. Protective shell; 2. Inner electrical cavity; 3. Material port; 4. Dry powder barrel; 5. Powder injection port; 6. Threaded screw; 7. Threaded block; 8. Vertical plate; 9. Sealing plate; 10. Servo motor; 11. Guide rail; 12. Limit slide; 13. Anti-overstepping tripping device; 14. Mounting ear; 15. Front cover; 16. Smoke sensor; 17. Single chip microcomputer. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] See also Figure 1-6 The utility model provides an embodiment: an anti-over-tripping protection device, comprising a protection shell 1, the interior of the protection shell 1 is a hollow structure design, the hollow groove inside the protection shell 1 forms an inner electrical cavity 2, and the inner electrical cavity 2 is used to install the protection structure and the anti-over-tripping electrical structure;
[0025] A material port 3 is fixedly installed at the center of the upper surface of the protective shell 1. The material port 3 penetrates the upper surface of the protective shell 1. A dry powder barrel 4 is interconnected on the upper surface of the top of the material port 3. The dry powder barrel 4 is filled with dry powder. The dry powder can effectively extinguish open flames in actual use, thereby protecting the internal electrical structure, effectively controlling the fire in time, avoiding property losses, reducing safety hazards, and having good safety in use;
[0026] A threaded screw 6 is rotatably installed below the material port 3 and inside the protective shell 1 through a bearing. The threaded screw 6 is a forward and reverse screw. The forward and reverse threads of the threaded screw 6 are both threadedly connected with a threaded block 7. Vertical plates 8 are fixedly installed on the upper surfaces of the two threaded blocks 7. A sealing plate 9 is fixedly installed on the outer wall of the two vertical plates 8 close to the material port 3. The upper surface of the sealing plate 9 is flush with the lower surface of the material port 3. The lower opening of the material port 3 can be sealed by the two sealing plates 9, and it can be opened when dry powder fire extinguishing is needed;
[0027] One end of the threaded screw 6 is fixedly connected to the output shaft of the servo motor 10, and the servo motor 10 is fixedly mounted on the outer wall of one side of the protective housing 1;
[0028] According to the above structure, when the servo motor 10 rotates, it will drive the threaded screw 6 to rotate synchronously through the output shaft. Since the threaded screw 6 has positive and negative threads, and the positive and negative threads are both threadedly connected with threaded blocks 7, when the servo motor 10 rotates, the two threaded blocks 7 threaded thereon will move relative to each other (that is, move away from or approach each other, and this effect depends on the positive and negative rotation of the servo motor 10). The relative movement of the threaded blocks 7 drives the vertical plate 8 and the sealing plate 9 thereon to move relative to each other, so that the material port 3 can be opened and closed.
[0029] In this embodiment, a guide rail 11 is fixedly installed on the inner wall of the back side of the protective housing 1, and two limit slides 12 are slidably connected to the guide rail 11. The ends of the two limit slides 12 away from the guide rail 11 are fixedly connected to the two threaded blocks 7 respectively;
[0030] This structural design can play a certain displacement guiding role on the linear displacement of the threaded block 7 through the set guide rail 11, thereby improving the displacement accuracy. At the same time, it can effectively prevent the threaded block 7 from rotating synchronously with the threaded screw 6, and has good linear displacement guiding limiting performance.
[0031] In this embodiment, an anti-over-tripping device 13 is fixedly arranged inside the protective housing 1;
[0032] Smoke sensors 16 are fixedly mounted on both sides of the lower surface of the top of the protective housing 1, and a single-chip computer 17 is fixedly mounted on the inner wall of one side of the protective housing 1. The smoke sensor 16 is electrically connected to the single-chip computer 17 (blocked in the figure, not shown), and the single-chip computer 17 is electrically connected to the servo motor 10;
[0033] The smoke sensor 16 can detect the smoke concentration inside the protective housing 1. When the smoke concentration reaches a preset value, it indicates that a fire has occurred. At this time, the smoke sensor 16 can transmit a signal to the single-chip microcomputer 17. The single-chip microcomputer 17 can control the servo motor 10 to work, thereby driving the sealing plates 9 away from each other through the servo motor 10 and the threaded screw 6, so that the material port 3 can be opened, and the dry powder inside the dry powder barrel 4 can be discharged through the material port 3, so that the fire of the anti-override tripping device 13 can be extinguished by the dry powder;
[0034] Through the coordinated use of the above-mentioned structure, the utility model can effectively monitor the fire condition inside the protection device through the smoke condition. When the smoke value reaches the preset threshold, the fire protection structure will be started through the single-chip microcomputer to work, so that the internal fire can be effectively extinguished and controlled through the discharged dry powder to avoid further expansion of the fire. The fire can be effectively discovered and handled in time to reduce losses. At the same time, it has good safety of use and reduces safety hazards.
[0035] In this embodiment, a front cover plate 15 is fixedly installed on the front outer wall of the protective housing 1 by fixing bolts, and an observation window is opened on the front cover plate 15. Transparent tempered glass is installed in the observation window. The interior of the protective housing 1 can be sealed and protected by the arranged front cover plate 15, and the internal situation can be observed through the arranged observation window to ensure normal use effect;
[0036] In order to facilitate the installation of the protective device assembly on the wall, mounting ears 14 are fixedly installed on both sides of the upper surface and the lower surface of the protective shell 1 by welding, and mounting holes are opened on the mounting ears 14.
[0037] In this embodiment, both sides of the upper surface of the dry powder barrel 4 are provided with powder injection ports 5 which are interconnected therewith. Dry powder can be injected through the provided powder injection ports 5 to ensure normal use. A sealing plug (not shown in the figure) is plugged in the powder injection port 5. The dry powder barrel 4 adopts an inverted trapezoidal structure design. The inverted trapezoidal structure design of the dry powder barrel 4 makes its lower part have a certain slope diversion effect, so that the dry powder can be discharged more smoothly, which has good practicality.
[0038] Working principle: When the utility model is actually used, the protective housing 1 is provided with a mounting ear 14, and the protective device of the utility model can be installed on the wall through the provided mounting ear 14, so as to ensure the normal use of the device;
[0039] When in use, the utility model is powered on. When a fire occurs in the anti-override tripping device, the smoke sensor 16 can detect the smoke concentration inside the protective housing 1. When the smoke concentration reaches a preset threshold, the smoke sensor 16 can transmit a signal to the single-chip microcomputer 17, and the single-chip microcomputer 17 can control the servo motor 10 to work;
[0040] When the servo motor 10 rotates, it drives the threaded screw 6 to rotate synchronously through the output shaft. Since the threaded screw 6 is a positive and negative thread, and the positive and negative threads are both threadedly connected with a threaded block 7, when the servo motor 10 rotates, the two threaded blocks 7 threaded thereon will move relative to each other (i.e., move away from each other or approach each other, and this effect depends on the positive and negative rotation of the servo motor 10), thereby driving the vertical plate 8 and the sealing plate 9 thereon to move relative to each other through the relative movement of the threaded block 7. At this time, the sealing plates 9 move away from each other (the initial state of the sealing plates 9 is a closed state of contact with each other), thereby opening the material port 3 below the dry powder barrel 4;
[0041] After the material port 3 is opened, the dry powder inside the dry powder barrel 4 can be discharged through the material port 3, so that the open flame can be effectively extinguished by the discharged dry powder. Through the coordinated use of the above-mentioned structure, the utility model can effectively monitor the fire condition inside the protection device through the smoke condition. When the smoke value reaches the preset threshold, the fire protection structure will be started through the single-chip microcomputer to work, so that the internal fire can be effectively extinguished and controlled by the discharged dry powder to avoid further expansion of the fire. The fire can be effectively discovered and handled in time to reduce losses. At the same time, it has good safety of use and reduces safety hazards.
[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. An anti-over-tripping protection device, comprising a protection housing (1), characterized in that: The interior of the protective shell (1) is designed as a hollow structure. The hollow groove inside the protective shell (1) forms an inner electrical cavity (2). A material port (3) is fixedly installed at the center position of the upper surface of the protective shell (1). The material port (3) penetrates the upper surface of the protective shell (1). A dry powder barrel (4) is interconnected on the upper surface of the top of the material port (3). The dry powder barrel (4) is filled with dry powder. A threaded screw (6) is rotatably installed below the material port (3) and located inside the protective shell (1) through a bearing. The threaded screw (6) ) is a forward and reverse screw, the forward and reverse threads of the threaded screw (6) are both threadedly connected with a threaded block (7), the upper surfaces of the two threaded blocks (7) are fixedly mounted with a vertical plate (8), the outer walls of the two vertical plates (8) close to the material port (3) are fixedly mounted with a sealing plate (9), the upper surface of the sealing plate (9) is flush with the lower surface of the material port (3), one end of the threaded screw (6) is fixedly connected with the output shaft of the servo motor (10), and the servo motor (10) is fixedly mounted on the outer wall of one side of the protective housing (1).
2. The anti-over-tripping protection device according to claim 1, characterized in that: A guide rail (11) is fixedly mounted on the inner wall of the back side of the protective shell (1), and two limit slides (12) are slidably connected to the guide rail (11), and the ends of the two limit slides (12) away from the guide rail (11) are fixedly connected to two threaded blocks (7) respectively.
3. The anti-over-tripping protection device according to claim 1, characterized in that: An anti-over-tripping device (13) is fixedly arranged inside the protective shell (1), smoke sensors (16) are fixedly installed on both sides of the lower surface of the top of the protective shell (1), a single-chip computer (17) is fixedly installed on the inner wall of one side of the protective shell (1), the smoke sensor (16) is electrically connected to the single-chip computer (17), and the single-chip computer (17) is electrically connected to the servo motor (10).
4. The anti-over-tripping protection device according to claim 1, characterized in that: A front cover plate (15) is fixedly mounted on the front outer wall of the protective housing (1) by means of fixing bolts, and an observation window is provided on the front cover plate (15), in which transparent tempered glass is installed.
5. The anti-over-tripping protection device according to claim 1, characterized in that: Mounting ears (14) are fixedly mounted on both sides of the upper surface and the lower surface of the protective shell (1) by welding, and mounting holes are provided on the mounting ears (14).
6. The anti-over-tripping protection device according to claim 1, characterized in that: Both sides of the upper surface of the dry powder barrel (4) are provided with powder injection ports (5) communicating therewith, and sealing plugs are plugged in the powder injection ports (5). The dry powder barrel (4) adopts an inverted trapezoidal structure design.