A circuit breaker for power failure caused by excessive deep water pressure

Abstract

The invention belongs to the field of circuit breakers, and in particular relates to a circuit breaker for cutting off power when deep water pressure is too large. The circuit breaker comprises a waterproof and pressure-proof shell, a power distribution cavity is arranged in the waterproof and pressure-proof shell, a sealed power-off mechanism for waterproofing is arranged in the power distribution cavity, a limit mechanism for ensuring normal use is arranged in the sealed power-off mechanism, and a safety mechanism for detecting water pressure is arranged in the waterproof and pressure-proof shell. The greater the water pressure, the better the sealing effect of two waterproof sealing arc plates is, so that the circuit breaker can be prevented from being crushed without the knowledge of the staff, and the clamping block is pushed into the clamping groove by the wedge-shaped surface of the wedge-shaped sliding rod, so that the secondary telescopic rod can be prevented from sliding back and forth in the secondary telescopic groove due to some reasons during the working process, so that the conductive top block is intermittently in contact with the conductive block, thereby damaging the circuit. After the conductive top block is disconnected from the conductive block, the waterproof sealing arc plate always wraps the two connectors of the wire to prevent the wire from being in contact with water, so that current is generated around the staff, and the staff is electrocuted.

Description

Technical Field

[0001] The invention belongs to the field of circuit breakers, and in particular relates to a circuit breaker for cutting off power due to excessive deep water pressure. Background Art

[0002] A circuit breaker is a switch device that can close, carry and disconnect the current under normal circuit conditions and close, carry and disconnect the current under abnormal circuit conditions within a specified time. Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. When they have serious overloads or short circuits and undervoltage faults, they can automatically cut off the circuit. Existing circuit breakers have the following problems:

[0003] ① The existing circuit breakers can only cut off the power supply when an abnormality occurs inside the circuit, but have no detection function for the external environment;

[0004] ② When the current waterproof circuit breaker is used in deep water, it is easy to leak electricity during the power-off process;

[0005] ② After the waterproof circuit breaker is damaged by water pressure, it is easy for the current of the wire connected to the power supply to be conducted into the water, causing electric shock to the surrounding staff; Summary of the invention

[0006] The purpose of the present invention is to solve the above problems existing in the prior art and to provide a circuit breaker which can be used in deep water and can prevent electric wires from leaking electricity after being damaged by water pressure.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A power breaker for cutting off power when deep water pressure is too great, comprising a waterproof and pressure-proof shell, a power distribution cavity provided in the waterproof and pressure-proof shell, a sealed power-off mechanism for waterproofing provided in the power distribution cavity, a limit mechanism provided in the sealed power-off mechanism to ensure normal use, and a safety mechanism for detecting water pressure provided in the waterproof and pressure-proof shell.

[0009] Preferably, the safety mechanism includes two pressure slide grooves with two openings symmetrical about the distribution cavity and facing away from the distribution cavity, which are provided in the waterproof and pressure-proof shell. A pressure plate is slidably provided in each of the pressure slide grooves. Each of the pressure plates is connected to the inner wall of the pressure slide groove through three safety columns. A sealing ring is fixed at the connection between the pressure plate and the side wall of the pressure slide groove.

[0010] Preferably, the sealed power-off mechanism includes two closed slide grooves symmetrically arranged on the vertical side walls of the distribution cavity and the pressure slide groove with openings facing the distribution cavity, two opposite waterproof sealing arc plates are slidably arranged in the two closed slide grooves, a spherical space dry space is formed between the two waterproof sealing arc plates, a sealing strip is fixedly arranged on the side wall where the closed slide groove contacts the waterproof sealing arc plate, telescopic walls are embedded on the two side walls of the distribution cavity close to the pressure plate, each of the telescopic walls is provided with a first-level telescopic groove with an opening facing the distribution cavity, a first-level telescopic rod is slidably arranged in each of the first-level telescopic grooves, the first-level telescopic rod is connected to the inner wall of the first-level telescopic groove through a telescopic wall spring, each of the waterproof sealing arc plates is fixed to the corresponding first-level telescopic rod through a sealing ring, the first-level telescopic rod passes through the corresponding waterproof sealing arc plate, and a sealing pad is fixedly arranged on the opposite side of each of the waterproof sealing arc plates.

[0011] Preferably, the sealed power-off mechanism also includes a secondary telescopic groove with an opening toward the dry space provided in each of the primary telescopic grooves, a secondary telescopic rod is slidably provided in each of the secondary telescopic grooves, each of the secondary telescopic rods is connected to the inner wall of the corresponding secondary telescopic groove through a telescopic rod spring, and an insulating plate is fixedly provided at the end of each secondary telescopic rod away from the telescopic wall, and the two insulating plates are staggered in the direction in which the closed slide grooves are connected, one of the insulating plates is fixedly provided with a conductive top block, and a conductive block is embedded in the other insulating plate at a position corresponding to the conductive top block, and the conductive top block and the conductive block are both connected with wires, and each of the wires passes through the corresponding secondary telescopic rod, the primary telescopic rod and the telescopic wall to be connected to an electrical appliance or a power supply, and the conductive top block is in contact with and connected to the conductive block.

[0012] Preferably, the sealed power-off mechanism also includes two tube grooves symmetrically arranged about the closed slide groove on the side wall of each closed slide groove close to the pressure plate, and each tube groove is provided with a water pressure groove with an opening facing the closed slide groove on the inner wall close to the pressure plate, and the opening on the other side of the water pressure groove faces the pressure plate and is sealed by a sealing ring, and each of the waterproof sealing arc plates is connected to the inner wall of the corresponding tube groove through a telescopic tube.

[0013] Preferably, the limiting mechanism includes a transfer slide groove with an opening facing the relatively waterproof sealing arc plate arranged near the closed slide groove side of each insulating plate, a top block is slidably provided in each transfer slide groove, each top block is connected to the inner wall of the corresponding transfer slide groove through a return spring, and each top block is connected to the corresponding waterproof sealing arc plate through an electromagnetic slide rod, a mechanism slide groove is provided in the side of the secondary telescopic rod away from the insulating plate, a wedge-shaped slide rod is slidably provided in the mechanism slide groove, and the wedge-shaped slide rod is connected to the corresponding top block through the transfer rod near the insulating plate side, a card block is slidably provided through the mechanism slide groove near the side wall of the secondary telescopic groove, and a card slot with an opening facing the secondary telescopic rod is provided at the side wall corresponding to the secondary telescopic groove and the card block, and the card block is contacted and connected to the wedge surface corresponding to the wedge-shaped slide rod.

[0014] Beneficial effect: The greater the water pressure, the better the sealing effect of the two waterproof sealing arc plates, which can prevent the circuit breaker from being crushed without the knowledge of the staff.

[0015] The card block is pushed into the card slot by the wedge-shaped surface of the wedge-shaped slide rod, preventing the secondary telescopic rod from sliding back and forth in the secondary telescopic slot due to some reasons during the working process, causing the conductive top block to contact the conductive block intermittently and damage the circuit.

[0016] After the conductive top block is disconnected from the conductive block, the waterproof sealing arc plate always wraps the two connectors of the wire to prevent the wire from contacting water, causing current to be generated around the staff and causing electric shock to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the appearance of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure implementation of the present invention;

[0019] Figure 3 for Figure 2 Schematic diagram of the middle AA direction;

[0020] Figure 4 for Figure 2 Schematic diagram of the middle BB direction;

[0021] Figure 5 for Figure 2 The enlarged schematic diagram at C in the middle;

[0022] Figure 6 for Figure 2 The enlarged schematic diagram at D in the middle;

[0023] Figure 7 for Figure 2 Enlarged schematic diagram at point E in the middle.

[0024] In the figure, there are a waterproof and pressure-proof housing 10; a water pressure tank 11; a power distribution chamber 12; a pressure plate 13; a safety column 14; a pressure slide 15; a telescopic wall 16; a telescopic wall spring 17; a primary telescopic slot 18; a primary telescopic rod 19; a secondary telescopic slot 20; a telescopic rod spring 21; a waterproof and sealed arc plate 22; a closed slide 23; a dry space 24; a sealing ring 25; an electric wire 26; a sealing gasket 27; an insulating plate 28; a conductive top block 29; an electromagnetic slide rod 30; a sealing strip 31; a sealing ring 32; a telescopic tube 33; a tube groove 34; a secondary telescopic rod 35; a mechanism spring 36; a mechanism slide 37; a block 38; a slot 39; a wedge-shaped slide rod 40; a transfer slide 41; a reset spring 42; a top block 43; a transfer rod 44; a conductive block 45; a safety mechanism 90; a sealed power-off mechanism 91; and a limiting mechanism 92. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] In the description of the present invention, it should be noted that the terms "inside", "below", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] Combination Figure 2 A power breaker for cutting off power when deep water pressure is too high comprises a waterproof and pressure-proof shell 10, a power distribution cavity 12 is arranged in the waterproof and pressure-proof shell 10, a sealed power-off mechanism 91 for waterproofing is arranged in the power distribution cavity 12, a limit mechanism 92 is arranged in the sealed power-off mechanism 91 to ensure normal use, and a safety mechanism 90 for detecting water pressure is arranged in the waterproof and pressure-proof shell 10.

[0028] Further, combined with Figure 2 , Figure 4 The safety mechanism 90 includes two pressure slide grooves 15 symmetrically arranged about the distribution cavity 12 and with openings facing away from the distribution cavity 12 in the waterproof and pressure-proof shell 10. A pressure plate 13 is slidably arranged in each pressure slide groove 15. Each pressure plate 13 is connected to the inner wall of the pressure slide groove 15 through three safety columns 14. A sealing ring 32 is fixedly arranged at the connection between the pressure plate 13 and the side wall of the pressure slide groove 15.

[0029] Further, combined with Figure 2 , Figure 3The sealed power-off mechanism 91 includes two sealed slide grooves 23 symmetrically arranged on the vertical side walls of the distribution chamber 12 and the pressure slide groove 15, with the openings facing the distribution chamber 12, two relatively waterproof sealed arc plates 22 slidingly arranged in the two sealed slide grooves 23, a spherical space drying space 24 is formed between the two waterproof sealed arc plates 22, a sealing strip 31 is fixedly arranged on the side wall where the sealed slide groove 23 contacts the waterproof sealed arc plate 22, and two side walls of the distribution chamber 12 near the pressure plate 13 are embedded with a stretching The telescopic wall 16 is provided with a primary telescopic groove 18 with an opening toward the distribution cavity 12 in each telescopic wall 16, and a primary telescopic rod 19 is slidably provided in each primary telescopic groove 18. The primary telescopic rod 19 is connected to the inner wall of the primary telescopic groove 18 through a telescopic wall spring 17. Each waterproof sealing arc plate 22 is fixed to the corresponding primary telescopic rod 19 through a sealing ring 25. The primary telescopic rod 19 passes through the corresponding waterproof sealing arc plate 22, and a sealing pad 27 is fixed on the opposite side of each waterproof sealing arc plate 22.

[0030] Further, combined with Figure 2 , Figure 6 The sealed power-off mechanism 91 also includes a secondary telescopic groove 20 with an opening toward the dry space 24 in each primary telescopic groove 18, a secondary telescopic rod 35 is slidably provided in each secondary telescopic groove 20, each secondary telescopic rod 35 is connected to the inner wall of the corresponding secondary telescopic groove 20 through a telescopic rod spring 21, and an insulating plate 28 is fixedly provided at the end of each secondary telescopic rod 35 away from the telescopic wall 16, and the two insulating plates 28 are staggered in the direction in which the closed slide groove 23 is connected, one of the insulating plates 28 is fixedly provided with a conductive top block 29, and a conductive block 45 is embedded in the other insulating plate 28 at a position corresponding to the conductive top block 29, and the conductive top block 29 and the conductive block 45 are both connected with wires 26, and each wire 26 passes through the corresponding secondary telescopic rod 35, the primary telescopic rod 19 and the telescopic wall 16 to be connected to the electrical appliance or power supply, and the conductive top block 29 is in contact with the conductive block 45.

[0031] Further, combined with Figure 2 , Figure 5 The sealed power-off mechanism 91 also includes two pipe grooves 34 symmetrically arranged about the closed slide groove 23 on the side wall of each closed slide groove 23 close to the pressure plate 13. A water pressure groove 11 with an opening facing the closed slide groove 23 is provided on the inner wall of each pipe groove 34 close to the pressure plate 13. The opening on the other side of the water pressure groove 11 faces the pressure plate 13 and is sealed by a sealing ring 32. Each waterproof sealing arc plate 22 is connected to the inner wall of the corresponding pipe groove 34 through a telescopic tube 33.

[0032] Further, combined with Figure 6The limiting mechanism 92 includes a transfer slide 41 with an opening facing the relatively waterproof sealing arc plate 22, which is arranged on the side of each insulating plate 28 near the closed slide 23; a top block 43 is slidably arranged in each transfer slide 41; each top block 43 is connected to the inner wall of the corresponding transfer slide 41 through a return spring 42; each top block 43 is connected to the corresponding waterproof sealing arc plate 22 through an electromagnetic slide rod 30; a mechanism slide 37 is arranged on the side of the secondary telescopic rod 35 away from the insulating plate 28; a wedge-shaped slide rod 40 is slidably arranged in the mechanism slide 37; the wedge-shaped slide rod 40 is connected to the corresponding top block 43 through a transfer rod 44 near the insulating plate 28; a card block 38 is slidably arranged on the side of the mechanism slide 37 near the side wall of the secondary telescopic groove 20; a card slot 39 with an opening facing the secondary telescopic rod 35 is arranged at the side wall corresponding to the secondary telescopic groove 20 and the card block 38; the card block 38 is contacted and connected to the wedge surface of the corresponding wedge-shaped slide rod 40.

[0033] Initial state: the telescopic wall spring 17 is in a normal state, the telescopic rod spring 21 is in a normal state, the mechanism spring 36 is in a normal state, the electromagnetic slide rod 30 is in a compressed state, and the return spring 42 is in a normal state.

[0034] Working principle: Under normal use, when the circuit encounters a fault, the control terminal controls the electromagnetic slide rod 30 to extend, and the two electromagnetic slide rods 30 extend to drive the two top blocks 43 to slide respectively, the reset spring 42 is compressed, and the top block 43 drives the wedge-shaped slide rod 40 to slide through the transmission rod 44, and the mechanism spring 36 is compressed, so that the card block 38 slides out of the card slot 39 by gravity, and then the electromagnetic slide rod 30 pushes the secondary telescopic rod 35 to slide toward the telescopic wall 16, and the secondary telescopic rod 35 is retracted into the corresponding secondary telescopic slot 20, and the telescopic rod spring 21 is compressed, so that the conductive top block 29 and the conductive top block 29 are connected. The electric block 45 is disconnected, and the electrical appliance is used to power off the circuit. After the circuit is repaired, the electromagnetic slide rod 30 is reset, and the telescopic rod spring 21 is restored to drive the secondary telescopic rod 35 to reset, so that the conductive top block 29 is in contact with the conductive block 45 and energized. At the same time, the mechanism spring 36 and the reset spring 42 are restored to drive the wedge-shaped slide rod 40 and the top block 43 to reset respectively, and the card block 38 is pushed into the card slot 39 by the wedge-shaped surface of the wedge-shaped slide rod 40, so as to prevent the secondary telescopic rod 35 from sliding back and forth in the secondary telescopic slot 20 due to some reasons during the working process, so that the conductive top block 29 is in intermittent contact with the conductive block 45, thereby damaging the circuit.

[0035] If the breaker is used in deep water, as the water pressure increases with the depth of the water, when the breaker is about to penetrate to the material pressure limit depth of the waterproof and pressure-proof housing 10, the water pressure will break the safety column 14 and press the pressure plate 13 to slide toward the distribution chamber 12, so that the opening of the pressure tank 11 is opened. The water in the pressure tank 11 is pressed into the water tank 11 at the moment the pressure tank 11 is opened. The water in the pressure tank 11 presses the waterproof sealing arc plate 22 to slide through the telescopic tube 33, so that the two waterproof sealing arc plates 22 slide toward each other, the first telescopic rod 19 is drawn out of the first telescopic groove 18, the telescopic wall spring 17 is stretched, the telescopic tube 33 is stretched, and the two waterproof sealing arc plates 2 The water pressure contacts and seals the dry space 24 so that the dry space 24 is always dry. The greater the water pressure, the better the sealing effect of the two waterproof sealing arc plates 22, which can prevent the circuit breaker from being crushed when the staff dives too fast. When the waterproof sealing arc plates 22 slide, the electromagnetic slide bar 30 pushes the corresponding top block 43, so that the card block 38 slides out of the card slot 39, so that the secondary telescopic rod 35 slides into the secondary telescopic slot 20, so that the conductive top block 29 is disconnected from the conductive block 45. After the disconnection, the waterproof sealing arc plates 22 always wrap the two connectors of the wires to prevent the wires from being in contact with water, so that current is generated around the staff and the staff is electrocuted.

[0036] The above descriptions are merely embodiments of the present invention, and are not intended to limit the patent protection scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A circuit breaker for cutting off power when deep water pressure is too high, comprising a waterproof and pressure-proof housing (10), characterized in that: The waterproof and pressure-proof housing (10) is provided with a power distribution cavity (12), the power distribution cavity (12) is provided with a sealed power-off mechanism (91) for waterproofing, the sealed power-off mechanism (91) is provided with a limit mechanism (92) for ensuring normal use, and the waterproof and pressure-proof housing (10) is provided with a safety mechanism (90) for detecting water pressure; The safety mechanism (90) comprises two pressure slide grooves (15) symmetrically arranged about the power distribution cavity (12) and facing away from the power distribution cavity (12) in the waterproof and pressure-proof housing (10); a pressure plate (13) is slidably arranged in each of the pressure slide grooves (15); each of the pressure plates (13) is connected to the inner wall of the pressure slide groove (15) through three safety columns (14); a sealing ring (32) is fixedly arranged at the connection between the pressure plate (13) and the side wall of the pressure slide groove (15); The sealed power-off mechanism (91) comprises two sealed slide grooves (23) symmetrically arranged on the vertical side walls of the power distribution chamber (12) and the pressure slide groove (15) with respect to the power distribution chamber (12), two relatively waterproof sealed arc plates (22) being slidably arranged in the two sealed slide grooves (23), a spherical space dry space (24) being formed between the two waterproof sealed arc plates (22), a sealing strip (31) being fixedly arranged on the side wall where the sealed slide groove (23) contacts the waterproof sealed arc plate (22), and two side walls of the power distribution chamber (12) close to the pressure plate (13) are both embedded with A telescopic wall (16), each of the telescopic walls (16) is provided with a primary telescopic groove (18) opening toward the power distribution chamber (12), each of the primary telescopic grooves (18) is slidably provided with a primary telescopic rod (19), the primary telescopic rod (19) is connected to the inner wall of the primary telescopic groove (18) through a telescopic wall spring (17), each of the waterproof sealing arc plates (22) is fixed to the corresponding primary telescopic rod (19) through a sealing ring (25), the primary telescopic rod (19) passes through the corresponding waterproof sealing arc plate (22), and a sealing pad (27) is fixedly provided on the opposite side of each of the waterproof sealing arc plates (22); The sealed power-off mechanism (91) further comprises a secondary telescopic groove (20) provided in each of the primary telescopic grooves (18) and opening toward the dry space (24); a secondary telescopic rod (35) is slidably provided in each of the secondary telescopic grooves (20); each of the secondary telescopic rods (35) is connected to the inner wall of the corresponding secondary telescopic groove (20) through a telescopic rod spring (21); an insulating plate (28) is fixedly provided at the end of each of the secondary telescopic rods (35) away from the telescopic wall (16); the two insulating plates (28) are arranged in the sealed slide groove (23). The insulating plates (28) are staggered in the connecting direction, wherein a conductive top block (29) is fixedly provided inside one of the insulating plates (28), and a conductive block (45) is embedded in the other insulating plate (28) at a position corresponding to the conductive top block (29), and the conductive top block (29) and the conductive block (45) are both connected with electric wires (26), and each of the electric wires (26) passes through the corresponding secondary telescopic rod (35), the primary telescopic rod (19) and the telescopic wall (16) to be connected to an electrical appliance or a power source, and the conductive top block (29) is in contact with and connected to the conductive block (45); The sealed power-off mechanism (91) further comprises two tube grooves (34) symmetrically arranged about the sealed slide groove (23) on the side wall of each of the sealed slide grooves (23) close to the pressure plate (13); a water pressure groove (11) opening toward the sealed slide groove (23) is provided on the inner wall of each of the tube grooves (34) close to the pressure plate (13); the opening on the other side of the water pressure groove (11) faces the pressure plate (13) and is sealed by a sealing ring (32); and each of the waterproof sealing arc plates (22) is connected to the inner wall of the corresponding tube groove (34) by a telescopic tube (33).

2. A circuit breaker for powering off due to excessive deep water pressure according to claim 1, characterized in that: The limiting mechanism (92) includes a transfer slide (41) with an opening arranged on the side of each insulating plate (28) close to the closed slide (23) and facing the waterproof sealing arc plate (22); a top block (43) is slidably arranged in each transfer slide (41); each top block (43) is connected to the inner wall of the corresponding transfer slide (41) through a return spring (42); each top block (43) is connected to the corresponding waterproof sealing arc plate (22) through an electromagnetic slide rod (30); and the secondary telescopic rod (35) is arranged on the side away from the insulating plate (28). There is a mechanism slide groove (37), a wedge-shaped slide rod (40) is slidably provided in the mechanism slide groove (37), the wedge-shaped slide rod (40) is connected to the corresponding top block (43) through a transfer rod (44) near the insulating plate (28) side, and a clamping block (38) is slidably provided through the mechanism slide groove (37) near the side wall of the secondary telescopic groove (20), and a clamping groove (39) with an opening facing the secondary telescopic rod (35) is provided at the side wall corresponding to the secondary telescopic groove (20) and the clamping block (38), and the clamping block (38) is in contact with and connected to the wedge surface corresponding to the wedge-shaped slide rod (40).

Images