A power switch for protecting circuit

Abstract

The present invention discloses a power switch for a protection circuit, comprising a mounting back plate, a switch housing is embedded in the middle of the front of the mounting back plate, a switch is movably connected in the middle of the switch housing, a protective cover body is hinged on one side of the mounting back plate, a first fixed block is fixedly connected in the middle of one end of the protective cover body away from the mounting back plate, a magnetic block is fixedly connected on one side of the first fixed block, a second fixed block is fixedly connected in the middle of one side of the mounting back plate away from the protective cover body, and an iron sheet is embedded in the second fixed block. The power switch for the protection circuit can cover the switch housing and the switch through the cooperation of the protective cover body, the first fixed block, the magnetic block, the second fixed block, and the iron sheet, so that dust accumulation or water ingress can be avoided when not in use, and the internal situation can be observed, thereby increasing practicality.

Description

Technical Field

[0001] The present invention relates to the field of power switches, and in particular to a power switch for a protection circuit. Background Art

[0002] The power switch is used to control the switch tube through the circuit to conduct high-speed on and off, converting direct current into high-frequency alternating current and providing it to the transformer for transformation, thereby generating one or more required voltages.

[0003] There is a door in the power switch. When the door is opened, the power passes through. When the door is closed, the power stops passing through. So what is the door? Some switching power supplies use thyristors, and some use switch tubes. The performance of these two components is similar. They are all turned on and off by adding pulse signals to the base and the control electrode (thyristor). When the positive half cycle of the pulse signal arrives, the voltage on the control electrode increases, and the switch tube or thyristor is turned on. The 300v voltage output after 220v rectification and filtering is turned on and transmitted to the secondary through the switch transformer. Then the voltage is increased or decreased by the transformation ratio to supply each circuit. When the negative half cycle of the oscillation pulse arrives, the base voltage of the power adjustment tube or the control electrode voltage of the thyristor is lower than the original set voltage, the power adjustment tube is cut off, the 300v power supply is turned off, and there is no voltage on the secondary of the switch transformer. At this time, the working voltage required by each circuit is maintained by the discharge of the filter capacitor after rectification of the secondary. When the positive half cycle signal of the next pulse cycle arrives, the previous process is repeated.

[0004] At present, a power switch is also provided in the protection circuit, but the power switch provided in the existing protection circuit is generally exposed, and dust is easily accumulated when not operated. Generally, the power switch is directly touched by fingers during operation. If there is sweat on the hands when manually operating the power switch, leakage is easily caused, and even danger may occur. In addition, if the existing power switch is located in an area with dim light, it will affect the staff's accurate operation of the power switch.

[0005] Therefore, it is necessary to propose a protection circuit using a power switch to solve the above problems. Summary of the invention

[0006] The main purpose of the present invention is to provide a power switch for a protection circuit, which can effectively solve the problems in the background technology.

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] A power switch for a protection circuit, comprising a mounting back plate, a switch housing is embedded in the middle of the front of the mounting back plate, a switch is movably connected to the middle of the switch housing, a protective cover body is hinged on one side of the mounting back plate, a first fixing block is fixedly connected to the middle of one end of the protective cover body away from the mounting back plate, a magnetic block is fixedly connected to one side of the first fixing block, a second fixing block is fixedly connected to the middle of one side of the mounting back plate away from the protective cover body, and an iron sheet is embedded in the second fixing block;

[0009] The left and right ends of the back surface of the mounting back plate are symmetrically fixedly connected to the side plates, and the opposite sides of the two side plates are slidably connected to the displacement plates, and the front ends of the two side plates are symmetrically provided with guide grooves, and the middle parts of the left and right sides of the displacement plates are symmetrically fixedly connected to the guide blocks, and the middle part of the front side of the displacement plates is fixedly connected to a convex plate, and a cavity is opened in the middle part of the back side of the displacement plate, and the inner side of the cavity is close to the end of the mounting back plate and is slidably connected to the sliding plate, and the left and right ends of the back side of the sliding plate are symmetrically fixedly connected to the connecting blocks, and a rotating rod is arranged between the two connecting blocks, and the inner side of the cavity is fixedly connected to the sliding rod at one end away from the mounting back plate. The sliding rod is symmetrically sleeved on the outer sides of the left and right ends of the sliding rod, and the two elastic members are symmetrically fixedly connected to the sliders at one end close to the two elastic members, and the two sliders are movably connected to the movable rod at one end facing the sliding plate;

[0010] A mounting groove is provided in the middle of the front side of the convex plate, a plate body is inserted in the inner cavity of the mounting groove, a fluorescent strip is embedded in the middle of the front side of the plate body, a protrusion is fixedly connected to one end of the front side of the plate body, a slot is provided on the side of the plate body away from the protrusion, a groove is provided at one end of the convex plate close to the slot, a force block is slidably connected to one end of the inner cavity of the groove close to the mounting groove, an insert block is fixedly connected to the rear end of the force block close to the mounting groove, and a telescopic rod is fixedly connected to one end of the inner cavity of the groove away from the mounting groove.

[0011] Preferably, the protective cover body is formed by bonding four transparent PC plates, and the protective cover body can cover the front side of the mounting back plate.

[0012] Preferably, the first fixing block corresponds to the second fixing block, and the magnetic block is magnetically connected and matched with the iron sheet.

[0013] Preferably, the two guide blocks are slidably connected to the inner sides of the two guide grooves respectively.

[0014] Preferably, the distance between the two connection blocks is greater than the width of the switch housing, the rotating rod is rotatably connected between the two connection blocks, and the rotating rod is in abutment with the outer side of the switch.

[0015] Preferably, the ends of the two elastic members that are away from each other are fixedly connected to the left and right sides of the inner cavity of the cavity respectively, and the two sliding blocks are slidably connected to the left and right ends of the sliding rod.

[0016] Preferably, one end of the two movable rods away from the sliding block is movably connected to the inner middle part of the sliding plate.

[0017] Preferably, the plate body is adapted to the mounting groove.

[0018] Preferably, the front end of the force-applying block protrudes from the front side of the convex plate, and the end of the inserting block away from the force-applying block extends to the inner side of the mounting groove and is plugged into and matched with the slot.

[0019] Preferably, one end of the telescopic rod is fixedly connected to the side wall of the force applying block, and a spring is provided on the inner side of the telescopic rod. Beneficial Effects

[0020] Compared with the prior art, the present invention provides a power switch for a protection circuit, which has the following beneficial effects:

[0021] The power switch for the protection circuit can cover the switch housing and the switch through the cooperation of the protective cover body, the first fixing block, the magnetic block, the second fixing block and the iron sheet. When not in use, dust accumulation or water ingress can be avoided, and the internal situation can be observed, thereby increasing practicality.

[0022] The power switch for the protection circuit, the side plate, the displacement plate, the convex plate, the guide block, the guide groove, the connecting block, the rotating rod, the sliding plate, the movable rod, the sliding rod, the elastic part and the sliding block cooperate with each other to realize the opening and closing operation without directly touching the switch with fingers, thereby increasing safety.

[0023] The power switch for the protection circuit can emit light in a dark place through the arranged fluorescent strip, which is convenient for finding the position of the switch. The mutual cooperation of the plate body, the installation groove, the protrusion, the slot, the telescopic rod, the groove, the force block and the plug block can facilitate the disassembly and assembly of the fluorescent strip, thereby facilitating the replacement of the fluorescent strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the displacement plate of the present invention;

[0026] Figure 3 It is a schematic structural diagram of the back of the displacement plate of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the side plate of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the convex plate of the present invention;

[0029] Figure 6It is a schematic diagram of the structure in which the plate body and the convex plate of the present invention are separated;

[0030] Figure 7 It is a schematic diagram of the cross-sectional structure of the connection between the displacement plate and the sliding plate of the present invention.

[0031] In the figure: 1. mounting back plate; 2. switch housing; 3. switch; 4. protective cover; 5. first fixing block; 6. magnetic block; 7. second fixing block; 8. iron sheet; 9. side plate; 10. displacement plate; 11. convex plate; 12. guide block; 13. sliding plate; 14. connecting block; 15. rotating rod; 16. guide groove; 17. plate body; 18. fluorescent strip; 19. protrusion; 20. telescopic rod; 21. force block; 22. groove; 23. mounting groove; 24. plug-in block; 25. slot; 26. sliding rod; 27. elastic member; 28. slider; 29. ​​movable rod; 30. cavity. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] like Figure 1-7 As shown, a power switch for a protection circuit comprises a mounting back plate 1, a switch housing 2 is embedded in the middle of the front of the mounting back plate 1, a switch 3 is movably connected to the middle of the switch housing 2, a protective cover body 4 is hinged on one side of the mounting back plate 1, the protective cover body 4 is formed by bonding four transparent PC plates, and the protective cover body 4 can cover the front of the mounting back plate 1, a first fixing block 5 is fixedly connected to the middle of one end of the protective cover body 4 away from the mounting back plate 1, a magnetic block 6 is fixedly connected to one side of the first fixing block 5, a second fixing block 7 is fixedly connected to the middle of one side of the mounting back plate 1 away from the protective cover body 4, an iron sheet 8 is embedded in the second fixing block 7, the first fixing block 5 corresponds to the second fixing block 7, the magnetic block 6 is magnetically connected and matched with the iron sheet 8, and the switch housing 2 and the switch 3 can be covered by the mutual cooperation of the protective cover body 4, the first fixing block 5, the magnetic block 6, the second fixing block 7, and the iron sheet 8, so that dust accumulation or water ingress can be avoided when not in use, and the internal situation can be observed, thereby increasing practicality;

[0034] The left and right ends of the front face of the mounting back plate 1 are symmetrically fixedly connected with side plates 9, and the opposite sides of the two side plates 9 are slidably connected with a displacement plate 10. The front ends of the opposite sides of the two side plates 9 are symmetrically provided with guide grooves 16. The middle parts of the left and right sides of the displacement plate 10 are symmetrically fixedly connected with guide blocks 12. The two guide blocks 12 are respectively slidably connected to the inner sides of the two guide grooves 16. The middle part of the front face of the displacement plate 10 is fixedly connected with a convex plate 11. The middle part of the back face of the displacement plate 10 is provided with a cavity 30. The inner side of the cavity 30 is slidably connected with a sliding plate 13 near one end of the mounting back plate 1. The left and right ends of the back face of the sliding plate 13 are symmetrically fixedly connected with connecting blocks 14. The distance between the two connecting blocks 14 is greater than the width of the switch housing 2. A rotating rod 15 is provided between the two connecting blocks 14. The rotating rod 15 is rotatably connected between the two connecting blocks 14. The rotating rod 15 is in contact with the outer side of the switch 3. The end of the cavity 30 away from the mounting back plate 1 is fixedly connected with a slide bar 26, and elastic members 27 are symmetrically sleeved on the outer sides of the left and right ends of the slide bar 26. The ends of the two elastic members 27 away from each other are respectively fixedly connected to the left and right sides of the cavity 30, and the ends of the two elastic members 27 close to each other are symmetrically fixedly connected with sliders 28. The two sliders 28 are slidably connected to the left and right ends of the slide bar 26, and the ends of the two sliders 28 facing the sliding plate 13 are movably connected with movable rods 29, and the ends of the two movable rods 29 away from the sliders 28 are movably connected to the inner middle part of the sliding plate 13. The cooperation of the side plate 9, the displacement plate 10, the convex plate 11, the guide block 12, the guide groove 16, the connecting block 14, the rotating rod 15, the sliding plate 13, the movable rod 29, the slide bar 26, the elastic member 27, and the slider 28 can realize the opening and closing operation without directly touching the switch 3 with fingers, thereby increasing safety.

[0035] A mounting groove 23 is provided in the middle of the front of the convex plate 11, and a plate body 17 is inserted into the inner cavity of the mounting groove 23. The plate body 17 is adapted to the mounting groove 23. A fluorescent strip 18 is embedded in the middle of the front of the plate body 17. The fluorescent strip 18 can emit light in a dark place, which is convenient for finding the position of the switch 3. A protrusion 19 is fixedly connected to one end of the front of the plate body 17. A slot 25 is provided on the side of the plate body 17 away from the protrusion 19. A groove 22 is provided at one end of the convex plate 11 close to the slot 25. A force block 21 is slidably connected to one end of the inner cavity of the groove 22 close to the mounting groove 23. The front end of the force block 21 protrudes from the front of the convex plate 11 The rear end of the force block 21 close to the mounting groove 23 is fixedly connected with an insert block 24, and one end of the insert block 24 away from the force block 21 extends to the inner side of the mounting groove 23 and is plugged into the slot 25. The end of the inner cavity of the groove 22 away from the mounting groove 23 is fixedly connected with the telescopic rod 20, one end of the telescopic rod 20 is fixedly connected to the side wall of the force block 21, and a spring is arranged on the inner side of the telescopic rod 20. The cooperation among the plate body 17, the mounting groove 23, the protrusion 19, the slot 25, the telescopic rod 20, the groove 22, the force block 21 and the insert block 24 can facilitate the disassembly and assembly of the fluorescent strip 18, and thus facilitate the replacement of the fluorescent strip 18.

[0036] It should be noted that the present invention is a power switch for protecting a circuit. When in use, the protective cover body 4, the first fixing block 5, the magnetic block 6, the second fixing block 7, and the iron sheet 8 cooperate with each other to realize the cover of the switch housing 2 and the switch 3. When not in use, dust accumulation or water ingress can be avoided, and the internal situation can be observed, which increases practicality. The side plate 9, the displacement plate 10, the convex plate 11, the guide block 12, the guide groove 16, the connecting block 14, the rotating rod 15, the sliding plate 13, the movable rod 29, the sliding rod 26, the elastic member 27, and the sliding block 28 cooperate with each other so that the switch housing 2 and the switch 3 can be directly connected without fingers. The switch 3 can be opened and closed by touching it, which increases safety. The fluorescent strip 18 can emit light in a dark place, which is convenient for finding the position of the switch 3. The cooperation between the plate 17, the mounting groove 23, the protrusion 19, the slot 25, the telescopic rod 20, the groove 22, the force block 21, and the plug block 24 can facilitate the disassembly and assembly of the fluorescent strip 18, and then facilitate the replacement of the fluorescent strip 18. Specifically, the protruding plate 11 can be pulled to drive the displacement plate 10 to move up and down, and the guide block 12 slides and guides on the inner side of the guide groove 16. When the rotating rod 15 contacts the switch 3, it will resist the switch 3 and continue to move downward. The rotating rod 15 is subjected to pressure from the middle of the switch 3. The rotating rod 15 compresses the movable rod 29 on the inner side of the cavity 30 through the sliding plate 13. The movable rod 29 compresses the elastic member 27 on the outer side of the sliding rod 26 through the slider 28. When the movable rod 29 continues to move downward past the middle of the switch 3, the elastic member 27 is reset, and then the rotating rod 15 will contact the lower end of the switch 3. The lower end of the switch 3 moves inward to achieve the operation. When it moves upward, the switch 3 can be operated in another way. The switch 3 can be opened and closed without contact, which increases safety. When not in use, the protective cover body 4 can be turned over so that the magnetic block 6 is magnetically connected to the iron sheet 8. 18 can emit light in a dark place, which is convenient for finding the position of the switch 3. The cooperation between the plate body 17, the installation groove 23, the protrusion 19, the slot 25, the telescopic rod 20, the groove 22, the force block 21, and the plug block 24 can facilitate the disassembly and assembly of the fluorescent strip 18. Specifically, the force block 21 is pulled, and the force block 21 compresses the telescopic rod 20 on the inner side of the groove 22, so that the spring on the inner side of the telescopic rod 20 contracts, and then the force block 21 drives the plug block 24 to detach from the inner cavity of the slot 25, and then the plate body 17 can be pulled by the protrusion 19 to realize the disassembly of the plate body 17, so as to facilitate the replacement of the fluorescent strip 18.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A power switch for a protection circuit, comprising a mounting back plate (1), Features: A switch housing (2) is embedded in the middle of the front of the mounting back plate (1), a switch (3) is movably connected to the middle of the switch housing (2), a protective cover body (4) is hingedly connected to one side of the mounting back plate (1), a first fixing block (5) is fixedly connected to the middle of one end of the protective cover body (4) away from the mounting back plate (1), a magnetic block (6) is fixedly connected to one side of the first fixing block (5), a second fixing block (7) is fixedly connected to the middle of one side of the mounting back plate (1) away from the protective cover body (4), and an iron sheet (8) is embedded in the second fixing block (7); The left and right ends of the front face of the mounting back plate (1) are symmetrically fixedly connected to side plates (9); the opposite sides of the two side plates (9) are slidably connected to a displacement plate (10); the front ends of the opposite sides of the two side plates (9) are symmetrically provided with guide grooves (16); the middle parts of the left and right sides of the displacement plate (10) are symmetrically fixedly connected to guide blocks (12); the middle part of the front face of the displacement plate (10) is fixedly connected to a convex plate (11); the middle part of the back face of the displacement plate (10) is provided with a cavity (30); the inner side of the cavity (30) is slidably connected to an end of the mounting back plate (1) A sliding plate (13) is provided, and connecting blocks (14) are symmetrically fixedly connected to the left and right ends of the back of the sliding plate (13), a rotating rod (15) is arranged between the two connecting blocks (14), a sliding rod (26) is fixedly connected to the end of the inner cavity of the cavity (30) away from the mounting back plate (1), elastic members (27) are symmetrically sleeved on the outer sides of the left and right ends of the sliding rod (26), sliding blocks (28) are symmetrically fixedly connected to the ends of the two elastic members (27) that are close to each other, and movable rods (29) are movably connected to the ends of the two sliding blocks (28) that face the sliding plate (13); A mounting groove (23) is provided in the middle of the front face of the convex plate (11), a plate body (17) is inserted into the inner cavity of the mounting groove (23), a fluorescent strip (18) is embedded in the middle of the front face of the plate body (17), one end of the front face of the plate body (17) is fixedly connected to a protrusion (19), a slot (25) is provided on the side of the plate body (17) away from the protrusion (19), a groove (22) is provided on the end of the convex plate (11) close to the slot (25), a force block (21) is slidably connected to the end of the inner cavity of the groove (22) close to the mounting groove (23), an insert block (24) is fixedly connected to the rear end of the force block (21) close to the mounting groove (23), and a telescopic rod (20) is fixedly connected to the end of the inner cavity of the groove (22) away from the mounting groove (23).

2. A power switch for a protection circuit according to claim 1, Features: The protective cover body (4) is formed by bonding four transparent PC plates together, and the protective cover body (4) can cover the front side of the mounting back plate (1).

3. A power switch for a protection circuit according to claim 1, Features: The first fixing block (5) corresponds to the second fixing block (7), and the magnetic block (6) is magnetically connected to the iron sheet (8).

4. A power switch for a protection circuit according to claim 1, Features: The two guide blocks (12) are respectively slidably connected to the inner sides of the two guide grooves (16).

5. A power switch for a protection circuit according to claim 1, Features: The distance between the two connection blocks (14) is greater than the width of the switch housing (2); the rotating rod (15) is rotatably connected between the two connection blocks (14); and the rotating rod (15) is in abutment with the outer side of the switch (3).

6. A power switch for a protection circuit according to claim 1, Features: The ends of the two elastic members (27) that are away from each other are fixedly connected to the left and right sides of the inner cavity of the cavity (30), respectively, and the two sliding blocks (28) are slidably connected to the left and right ends of the sliding rod (26).

7. A power switch for a protection circuit according to claim 1, Features: One end of the two movable rods (29) away from the slider (28) is movably connected to the inner middle portion of the sliding plate (13).

8. A power switch for a protection circuit according to claim 1, Features: The plate body (17) is adapted to the mounting groove (23).

9. A power switch for a protection circuit according to claim 1, Features: The front end of the force-applying block (21) protrudes from the front face of the convex plate (11), and one end of the inserting block (24) away from the force-applying block (21) extends to the inner side of the mounting groove (23) and is plugged into and matched with the slot (25).

10. A power switch for a protection circuit according to claim 1, Features: One end of the telescopic rod (20) is fixedly connected to the side wall of the force applying block (21), and a spring is arranged on the inner side of the telescopic rod (20).

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