CN111653459A - Safety circuit breaker - Google Patents
Safety circuit breaker Download PDFInfo
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- CN111653459A CN111653459A CN202010532813.0A CN202010532813A CN111653459A CN 111653459 A CN111653459 A CN 111653459A CN 202010532813 A CN202010532813 A CN 202010532813A CN 111653459 A CN111653459 A CN 111653459A
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- opening
- circuit breaker
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
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Abstract
The application discloses a safety circuit breaker, which comprises a circuit breaker main body and a self-protection wiring terminal; the self-protection wiring terminals are symmetrically arranged on the left side, the right side, the front side and the rear side of the circuit breaker main body, and the self-protection wiring terminals at least comprise terminal cavities, opening and closing devices, wire clamping terminals and operating devices. According to the safety circuit breaker, the switching device is closed under a normal state so as to protect the wiring jacks from entering sundries; when wiring is carried out, the opening and closing device is opened to expose the wiring jack, then the opening and closing device is closed again after wiring is finished, at the moment, the opening and closing device cannot be completely closed, and only the swinging baffle of the opening and closing device is required to clamp the wire; the safety circuit breaker is simple to operate. The opening and closing of the opening and closing device can be realized by operating the handle, and the clamping of the wire clamping terminal can also be realized by operating the handle; the safety circuit breaker can also adjust the damping of leftward movement of the operating device.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a safety circuit breaker.
Background
The leakage breaker is a switch which can automatically act when the leakage current in the circuit exceeds a preset value, and mainly plays a role in preventing people from getting electric shock. And the residual current protection function is integrated on part of the circuit breakers, and the tripping device acts to cut off the power of the circuit breakers under the condition of electric leakage.
When the circuit breaker in the prior art is connected with an electric wire, an insulating sheath of the electric wire is stripped, and then a conductive metal core is inserted into a wiring terminal for fixing. However, it has the following problems: firstly, a fixing bolt of the wiring terminal is communicated with the outside through a jack for inserting a screwdriver, so that electric shock hidden danger is caused; and a protection structure is lacked after the wiring terminal is inserted with the wires, so that the holes for inserting the wires into the wiring terminal have the possibility of water inflow or other metal objects and further electric shock accidents.
The patent publication No. CN106783416A discloses a safety residual current circuit breaker and a method for using the same, wherein a terminal 3 comprises a fixed terminal 31 and a U-shaped sliding terminal 32 to clamp a wire, but a wire hole 14b for inserting the wire has no any protection measure, and a gap between the wire and the wire hole 14b after the wire is inserted has a large potential safety hazard.
Disclosure of Invention
A safety circuit breaker comprises a circuit breaker main body and a self-protection wiring terminal;
the self-protection wiring terminals are symmetrically arranged on the left side, the right side, the front side and the rear side of the circuit breaker main body, and at least comprise a terminal chamber, a switching device, a wire clamping terminal and an operating device;
the terminal chamber includes:
the middle-placed cavity is arranged in the middle of the self-protection wiring terminal along the left and right direction, a middle-placed baffle ring is formed in the middle of the middle-placed cavity, and a right-placed through hole is formed in the right end of the middle-placed cavity in a penetrating mode;
the wiring jack is communicated with and arranged behind the left half part of the middle-placed cavity, the middle part of the wiring jack is widened to form an annular cavity, and a communication cavity communicated with the middle-placed cavity is arranged forwards on the right side of the annular cavity;
the resistance adjusting cavity is communicated with and arranged behind the right half part of the middle-placed cavity, a screw rod jack is formed at the right end of the resistance adjusting cavity, and a nut jack communicated with the screw rod jack is also arranged behind the self-protection wiring terminal;
the opening and closing device is arranged in the annular cavity chamber and used for controlling the opening and closing of the routing jack;
the wire clamping terminal is arranged in the middle-arranged cavity and used for clamping a wire;
the operating device is arranged in the middle-mounted cavity and used for controlling the actions of the opening and closing device and the wire clamping terminal.
As a further embodiment of the method of the present invention,
the opening and closing device comprises an input sleeve, a transmission device and an opening and closing check ring;
the input sleeve comprises a sleeve body penetrating through the middle cavity baffle ring, a first convex ring formed at the position, on the right side of the middle cavity baffle ring, of the sleeve body, an input cone pulley formed at the position, on the left side of the middle cavity baffle ring, of the sleeve body, and a sleeve locking disc formed at the outer edge of the right end face of the sleeve body;
the transmission device comprises a transmission longitudinal shaft which is rotatably inserted into the communicating cavity, an output conical pulley which is arranged in front of the transmission longitudinal shaft and is in transmission connection with the input conical pulley, and a transmission roller wheel which is formed at the rear half part of the transmission longitudinal shaft;
the opening and closing check ring comprises a fixed convex ring formed in the front of the indoor edge of the annular cavity, a rotatable circular disc arranged in the fixed convex ring in a rotatable manner, and driving jacks which are uniformly distributed on the rotatable circular disc in the circumferential direction and are arranged in the radial direction, and also comprises a swinging core shaft uniformly distributed on the rear end surface of the annular cavity in the circumferential direction, a swinging baffle plate rotatably arranged on the swinging core shaft, and a driven plug arranged in front of the swinging baffle plate and matched with the driving jacks in an inserting manner;
the wire clamping terminal includes:
the sliding terminal comprises a perforated inserting plate arranged at the front end of the left half part of the middle-placed cavity, a built-in rotating shaft which is rotatably inserted into the perforated inserting plate and penetrates through the sleeve body, a second convex ring arranged on the built-in rotating shaft and positioned on the right side of the perforated inserting plate, an external threaded rod formed on the left side of the built-in rotating shaft, and a U-shaped terminal which is slidably inserted into the middle-placed cavity, wherein the U-shaped terminal comprises a front end face, a left end face and a right end face, the right end face of the U-shaped terminal is in threaded connection with the external threaded rod, and a terminal locking disc is further arranged on the right end;
the fixed terminal is fixed in the middle-placed cavity and positioned between the left end face and the right end face of the U-shaped terminal;
the operation device includes:
the left end face of the rotating outer barrel is penetrated through by the sleeve body, a left driving disk matched with the sleeve lock disk in a locking mode is arranged on the right side of the left end face of the rotating outer barrel, a right driving disk matched with the terminal lock disk in a locking mode is arranged on the left side of the right end face of the rotating outer barrel, and an operating handle penetrating through a right through hole is further arranged on the right end face of the rotating outer barrel;
and the reset pressure spring is wound on the sleeve body and is positioned between the middle cavity retaining ring and the rotating outer cylinder.
As a further embodiment, the safety circuit breaker further comprises a resistance trimming device;
the resistance adjusting device comprises:
the rotating nut is rotatably arranged in the nut jack;
the translation screw rod is slidably inserted into the screw rod jack and is in threaded connection with the adjusting nut, and a left connecting plate inserted into the resistance adjusting cavity is further arranged on the left side of the translation screw rod;
and the spring retainer ring is fixed in front of the left connecting plate, is positioned in the middle-placed chamber and abuts against the left side of the reset pressure spring.
Furthermore, the left end face of the sleeve lock disc is circumferentially and uniformly provided with locking grooves, and the right end face of the left driving disc is circumferentially and uniformly provided with locking lugs matched with the locking grooves in a locking mode.
Furthermore, locking grooves are evenly distributed in the circumferential direction of the right end face of the terminal lock disc, and locking lugs matched with the locking grooves in a locking mode are evenly distributed in the circumferential direction of the left end face of the right driving disc.
Furthermore, the right side of the operating handle is circumferentially and uniformly provided with anti-skid lugs.
Still further, the left connecting plate is a plate with a triangular section; and the upper end surface and the lower end surface of the left connecting plate are respectively provided with at least one reinforcing rib.
Furthermore, at least one pair of self-protection wiring terminals is arranged.
Has the advantages that:
according to the safety circuit breaker, the switching device is closed under a normal state so as to protect the wiring jacks from entering sundries; when wiring, the opening and closing device is opened firstly, the wiring jack is exposed, then the opening and closing device is closed again after wiring is completed, at the moment, the opening and closing device cannot be closed completely, and only the swing baffle of the opening and closing device is required to clamp the wires tightly.
The safety circuit breaker is simple to operate. Can realize switching device's switching through operating handle, also can realize pressing from both sides the clamp of double-layered line terminal through operating handle:
pushing the operating handle leftwards to drive the rotating outer cylinder and the right driving disc to move leftwards, so that the left driving disc is separated from the sleeve locking disc, and meanwhile, the right driving disc is in transmission connection with the terminal locking disc; the operating handle is rotated to drive the rotating outer cylinder and the right driving disc to rotate; the right driving disc drives the terminal lock disc, the built-in rotating shaft and the external threaded rod to rotate; the external threaded rod rotates to drive the U-shaped terminal to move rightwards, and the conducting wire is clamped.
The safety circuit breaker can also adjust the damping of the leftward movement of the operating device:
the rotating nut is rotated to drive the translation screw rod, the left connecting plate and the spring retainer ring to move rightwards; the position of the spring retainer ring moves to adjust the compression amount and the elasticity of the reset pressure spring in a normal state, and further adjust the damping of the leftward movement of the operating device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Figure 1 is a schematic diagram of one embodiment of the circuit breaker.
Figure 2 is a cross-sectional view of one embodiment of the circuit breaker.
Fig. 3 is a cross-sectional view of one embodiment of the terminal.
Fig. 4 is a cross-sectional view of another embodiment of the terminal.
Fig. 5 is a cross-sectional view of another embodiment of the terminal.
Fig. 6 is a cross-sectional view of another embodiment of the terminal.
Figure 7 is a cross-sectional view of one embodiment of section a-a of figure 3.
Figure 8 is a cross-sectional view of an alternative embodiment of section a-a of figure 3.
Fig. 9 is a schematic view of an embodiment of the U-shaped terminal.
In the figure:
a. a circuit breaker body, b. a self-protection wiring terminal;
1. a terminal cavity;
11. a middle cavity, 11a, a middle cavity baffle ring and 11b, a right through hole;
12. a wiring jack, 12a, an annular chamber and 12b, a communication chamber;
13. the resistance adjusting chamber is 13a, a screw rod jack and 13b, a nut jack;
2. an opening and closing device;
21. the input sleeve comprises an input sleeve body 21a, a first convex ring 21b, an input cone pulley 21c and a sleeve locking disc 21 d;
22. the transmission device 22a is used for transmitting the longitudinal shaft, 22b is used for outputting the conical pulley, and 22c is used for transmitting the roller wheel;
23. the plug comprises an opening and closing check ring, a fixed convex ring 23a, a rotating disk 23b, a driving jack 23c, a swinging mandrel 23d, a swinging baffle 23e and a driven plug 23 f;
3. a wire clamping terminal 31, a sliding terminal 31a, a perforated inserting plate 31b, an internal rotating shaft 31c, a second convex ring 31d, an external thread rod 31e.U type terminal and a terminal locking disc 31 f;
32. a fixed terminal;
4. the operation device 41 rotates the outer cylinder 41a, the left driving disc 41b, the right driving disc 41c and the operation handle;
42. resetting the pressure spring;
5. a resistance adjusting device;
51. and (4) rotating the nut, 52, translating the screw rod, 52a, a left connecting plate, 53 and a spring retainer ring.
Detailed Description
A safety circuit breaker comprises a circuit breaker main body a and a self-protection wiring terminal b;
the self-protection wiring terminals b are symmetrically arranged on the left side, the right side, the front side and the rear side of the breaker main body, and at least comprise a terminal chamber 1, an opening and closing device 2, a wire clamping terminal 3 and an operating device 4;
the terminal chamber 1 includes:
the middle chamber 11 is arranged in the middle of the self-protection wiring terminal along the left-right direction, a middle blocking ring 11a is formed in the middle of the middle chamber 11, and a right through hole 11b is formed in the right end of the middle chamber 11 in a penetrating mode;
the wiring jack 12 is communicated with and arranged behind the left half part of the middle-placed cavity 11, the middle part of the wiring jack 12 is widened to form an annular cavity 12a, and the right side of the annular cavity 12a is forwards provided with a communication cavity 12b communicated with the middle-placed cavity 11;
the resistance adjusting chamber 13 is communicated with the rear part of the right half part of the middle chamber 11, a screw rod insertion hole 13a is formed at the right end of the resistance adjusting chamber 13, and a nut insertion hole 13b communicated with the screw rod insertion hole 13a is formed behind the self-protection wiring terminal b;
the opening and closing device 2 is arranged in the annular chamber 12a and is used for controlling the opening and closing of the wiring jack 12;
the wire clamping terminal 3 is arranged in the middle chamber 11 and used for clamping a wire;
the operating device 4 is arranged in the middle chamber 11 and is used for controlling the actions of the opening and closing device 2 and the wire clamping terminal 3.
As a further embodiment of the method of the present invention,
the opening and closing device 2 comprises an input sleeve 21, a transmission device 22 and an opening and closing retainer ring 23;
the input sleeve 21 comprises a sleeve body 21a penetrating through the middle cavity retaining ring 11a, a first convex ring 21b formed at the right side position of the sleeve body 21a on the middle cavity retaining ring 11a, an input cone pulley 21c formed at the left side position of the sleeve body 21b on the middle cavity retaining ring 11a, and a sleeve locking disc 21d formed at the outer edge of the right end face of the sleeve body 21 a;
the transmission device 22 comprises a transmission longitudinal shaft 22a which is rotatably inserted in the communication chamber 12b, an output conical pulley 22b which is arranged in front of the transmission longitudinal shaft 22a and is in transmission connection with the input conical pulley 21c, and a transmission roller wheel 22c which is formed at the rear half part of the transmission longitudinal shaft 22 a;
the opening and closing check ring 23 comprises a fixed convex ring 23a formed in the front of the annular chamber 12a, a rotating disk 23b rotatably arranged in the fixed convex ring 23a, and driving jacks 23c which are circumferentially and uniformly distributed on the rotating disk 23b and radially arranged, and the opening and closing check ring 23 further comprises a swinging core shaft 23d circumferentially and uniformly distributed on the rear end surface of the annular chamber 12a, a swinging baffle plate 23e rotatably arranged on the swinging core shaft 23d, and a driven plug 23f which is arranged in front of the swinging baffle plate 23e and is in splicing fit with the driving jacks 23 c;
the wire clamping terminal 3 includes:
the sliding terminal 31 comprises a perforated inserting plate 31a arranged at the front end of the left half part of the middle-placed cavity 11, a built-in rotating shaft 31b which is rotatably inserted in the perforated inserting plate 31a and penetrates through the sleeve body 21a, a second convex ring 31c which is arranged on the built-in rotating shaft 31b and is positioned on the right side of the perforated inserting plate 31a, an external threaded rod 31d which is formed on the left side of the built-in rotating shaft 31b, and a U-shaped terminal 31e which is slidably inserted in the middle-placed cavity 11, wherein the U-shaped terminal comprises a front end surface, a left end surface and a right end surface, the right end surface of the U-shaped terminal 31e is in threaded connection with the external threaded rod 31d, and the right end surface of the built-in rotating shaft 31d is also;
the fixed terminal 32 is fixed in the middle chamber 11 and positioned between the left end face and the right end face of the U-shaped terminal;
the operation device 4 includes:
the rotating outer cylinder 41 is rotatably sleeved on the sleeve lock disc 21d and the terminal lock disc 31f in a sleeved mode, the left end face of the rotating outer cylinder 41 is penetrated through by the sleeve body 21a, a left driving disc 41a matched with the sleeve lock disc 21d in a locking mode is arranged on the right side of the left end face of the rotating outer cylinder 41, a right driving disc 41b matched with the terminal lock disc 31f in a locking mode is arranged on the left side of the right end face of the rotating outer cylinder 41, and an operating handle 41c penetrating through the right through hole 11b is further arranged on the right end face of the rotating outer cylinder 41;
and the return compression spring 42 is wound on the sleeve body 21a, and the return compression spring 42 is positioned between the middle cavity retaining ring 11a and the rotating outer cylinder 41.
As a further embodiment, the safety circuit breaker further comprises a resistance trimming device 5;
the resistance adjusting device 5 includes:
a rotating nut 51 rotatably provided in the nut insertion hole 13 b;
the translation screw rod 52 is slidably inserted into the screw rod insertion hole 13a and is in threaded connection with the adjusting nut 51, and a left connecting plate 52a inserted into the resistance adjusting chamber 13 is further arranged on the left side of the translation screw rod 52;
and the spring retainer ring 53 is fixed in front of the left connecting plate 52a, and the spring retainer ring 53 is positioned in the middle chamber 11 and abuts against the left side of the return pressure spring 42.
Furthermore, locking grooves are uniformly distributed in the circumferential direction of the left end face of the sleeve locking disc 21d, and locking lugs matched with the locking grooves in a locking mode are uniformly distributed in the circumferential direction of the right end face of the left driving disc 41a.
Furthermore, locking grooves are evenly distributed in the circumferential direction of the right end face of the terminal locking disc 31f, and locking lugs matched with the locking grooves in a locking mode are evenly distributed in the circumferential direction of the left end face of the right driving disc 41b.
Furthermore, anti-skid lugs are evenly distributed on the right side of the operating handle 41c in the circumferential direction.
Still further, the left connecting plate 52a is a plate with a triangular cross section; at least one reinforcing rib is formed on the upper end face and the lower end face of the left connecting plate 52a respectively.
Furthermore, at least one pair of self-protection wiring terminals b is arranged.
The use method of the safety circuit breaker comprises the following steps:
step 1, opening and closing of the opening and closing device 2:
under a normal state, the reset pressure spring 42 drives the rotating outer cylinder 41 to move rightwards, so that the left driving disk 41a is in transmission connection with the sleeve locking disk 21 d;
the operating handle 41c is rotated to drive the rotating outer cylinder 41 and the left driving disk 41a to rotate;
the left driving disk 41a drives the sleeve locking disk 21d, the sleeve body 21a and the input cone pulley 21c to rotate;
the input conical pulley 21c drives the output conical pulley 22b, the transmission longitudinal shaft 22a and the transmission roller 22c to rotate;
the transmission roller 22c drives the rotating disc 23b and the driving jack 23c to rotate, and the driving jack 23c acts on the corresponding driven plug 23f to drive the driven plug 23f and the swing baffle 23e to rotate until the near end of the swing baffle 23e is far away from each other and the wiring jack 12 is exposed;
step 2, connecting a wire:
inserting a wire into a gap between the U-shaped terminal 31e and the fixed terminal 32 through the routing jack 12;
step 3, clamping the wire clamping terminal 3:
pushing the operating handle 41c leftward to drive the rotating outer cylinder 41 and the right driving disk 41b to move leftward, so that the left driving disk 41a is separated from the sleeve locking disk 21d, and meanwhile, the right driving disk 41b is in transmission connection with the terminal locking disk 31 f;
the operating handle 41c is rotated to drive the rotating outer cylinder 41 and the right driving disk 41b to rotate;
the right driving disk 41b drives the terminal lock disk 31f, the built-in rotating shaft 31b and the external thread rod 31d to rotate;
the male screw 31d rotates to drive the U-shaped terminal 31e to move rightward, clamping the wire.
As a further embodiment, also includes
the rotating nut 51 is rotated to drive the translation screw rod 52, the left connecting plate 52a and the spring retainer ring 53 to move rightwards;
the position of the spring retainer ring 53 is moved to adjust the normal compression amount and the elasticity of the return pressure spring 42, thereby adjusting the damping of the leftward movement of the operating device 4.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Claims (5)
1. A kind of safe circuit breaker, its characterized in that:
the circuit breaker comprises a circuit breaker main body (a) and a self-protection wiring terminal (b);
the self-protection wiring terminals (b) are symmetrically arranged on the left side, the right side, the front side and the rear side of the breaker main body, and each self-protection wiring terminal (b) at least comprises a terminal chamber (1), an opening and closing device (2), a wire clamping terminal (3) and an operating device (4); (ii) a
The terminal chamber (1) comprises:
the middle-placed cavity (11) is arranged in the middle of the self-protection wiring terminal along the left-right direction, a middle-placed baffle ring (11a) is formed in the middle of the middle-placed cavity (11), and a right-placed through hole (11b) is formed in the right end of the middle-placed cavity (11) in a penetrating mode;
the wiring jack (12) is communicated with the rear part of the left half part of the middle-placed cavity (11), the middle part of the wiring jack (12) is widened to form an annular cavity (12a), and the right side of the annular cavity (12a) is forwards provided with a communication cavity (12b) communicated with the middle-placed cavity (11);
the resistance adjusting chamber (13) is communicated with the rear part of the right half part of the middle chamber (11), a screw rod jack (13a) is formed at the right end of the resistance adjusting chamber (13), and a nut jack (13b) communicated with the screw rod jack (13a) is further arranged behind the self-protection wiring terminal (b);
the opening and closing device (2) is arranged in the annular chamber (12a) and used for controlling the opening and closing of the wiring jack (12);
the wire clamping terminal (3) is arranged in the middle chamber (11) and used for clamping a wire;
the operating device (4) is arranged in the middle-placed chamber (11) and used for controlling the actions of the opening and closing device (2) and the wire clamping terminal (3).
2. The safety circuit breaker according to claim 1, wherein:
the opening and closing device (2) comprises an input sleeve (21), a transmission device (22) and an opening and closing check ring (23);
the input sleeve (21) comprises a sleeve body (21a) penetrating through the middle cavity baffle ring (11a), a first convex ring (21b) formed on the sleeve body (21a) and located at the right side of the middle cavity baffle ring (11a), an input cone pulley (21c) formed on the sleeve body (21b) and located at the left side of the middle cavity baffle ring (11a), and a sleeve locking disc (21d) formed on the outer edge of the right end face of the sleeve body (21 a);
the transmission device (22) comprises a transmission longitudinal shaft (22a) which is rotatably inserted into the communication chamber (12b), an output conical wheel (22b) which is arranged in front of the transmission longitudinal shaft (22a) and is in transmission connection with the input conical wheel (21c), and a transmission roller wheel (22c) which is formed at the rear half part of the transmission longitudinal shaft (22 a);
the opening and closing check ring (23) comprises a fixed convex ring (23a) which is formed in the annular chamber (12a) along the front direction, a rotating disk (23b) which is rotatably arranged in the fixed convex ring (23a), and driving jacks (23c) which are circumferentially and uniformly distributed on the rotating disk (23b) and radially arranged, and the opening and closing check ring (23) further comprises a swinging mandrel (23d) which is circumferentially and uniformly distributed on the rear end surface of the annular chamber (12a), a swinging baffle plate (23e) which is rotatably arranged on the swinging mandrel (23d), and a driven plug (23f) which is arranged in front of the swinging baffle plate (23e) and is in plugging fit with the driving jacks (23 c);
the wire clamping terminal (3) comprises:
the sliding terminal (31) comprises a perforated inserting plate (31a) arranged at the front end of the left half part of the middle-placed cavity (11), a built-in rotating shaft (31b) which is rotatably inserted into the perforated inserting plate (31a) and penetrates through the sleeve body (21a), a second convex ring (31c) arranged on the built-in rotating shaft (31b) and positioned on the right side of the perforated inserting plate (31a), an external threaded rod (31d) formed on the left side of the built-in rotating shaft (31b), and a U-shaped terminal (31e) slidably inserted into the middle-placed cavity (11), wherein the U-shaped terminal comprises a front end face, a left end face and a right end face, the right end face of the U-shaped terminal (31e) is in threaded connection with the external threaded rod (31d), and a terminal locking disc (31f) is further arranged on the right end face of the built-placed;
the fixed terminal (32) is fixed in the middle-placed cavity (11) and is positioned between the left end face and the right end face of the U-shaped terminal;
the operating device (4) comprises:
the rotating outer cylinder (41) is rotatably sleeved on the sleeve lock disc (21d) and the terminal lock disc (31f), the left end face of the rotating outer cylinder (41) is penetrated through by the sleeve body (21a), the right side of the left end face of the rotating outer cylinder (41) is provided with a left driving disc (41a) matched with the sleeve lock disc (21d) in a locking manner, the left side of the right end face of the rotating outer cylinder (41) is provided with a right driving disc (41b) matched with the terminal lock disc (31f) in a locking manner, and the right end face of the rotating outer cylinder (41) is further provided with an operating handle (41c) penetrating through the right through hole (11 b);
and the reset compression spring (42) is wound on the sleeve body (21a), and the reset compression spring (42) is positioned between the middle cavity retaining ring (11a) and the rotating outer cylinder (41).
3. The safety circuit breaker according to claim 2, characterized in that: the device also comprises a resistance adjusting device (5);
the resistance adjusting device (5) comprises:
a rotating nut (51) rotatably provided in the nut insertion hole (13 b);
the translation screw rod (52) is slidably inserted into the screw rod insertion hole (13a) and is in threaded connection with the adjusting nut (51), and a left connecting plate (52a) inserted into the resistance adjusting chamber (13) is further arranged on the left side of the translation screw rod (52);
and the spring retainer ring (53) is fixed in front of the left connecting plate (52a), and the spring retainer ring (53) is positioned in the middle chamber (11) and abuts against the left side of the reset pressure spring (42).
4. A safety circuit breaker according to claim 3, wherein: the left end face of the sleeve locking disc (21d) is circumferentially and uniformly provided with locking grooves, and the right end face of the left driving disc (41a) is circumferentially and uniformly provided with locking lugs matched with the locking grooves.
5. The safety circuit breaker according to claim 4, wherein: locking grooves are uniformly distributed in the circumferential direction of the right end face of the terminal locking disc (31f), and locking lugs matched with the locking grooves are uniformly distributed in the circumferential direction of the left end face of the right driving disc (41 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010532813.0A CN111653459B (en) | 2020-06-12 | 2020-06-12 | Safety circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010532813.0A CN111653459B (en) | 2020-06-12 | 2020-06-12 | Safety circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111653459A true CN111653459A (en) | 2020-09-11 |
| CN111653459B CN111653459B (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010532813.0A Active CN111653459B (en) | 2020-06-12 | 2020-06-12 | Safety circuit breaker |
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| CN (1) | CN111653459B (en) |
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