CN114496672B - Plug-in circuit breaker locking and unlocking structure - Google Patents
Plug-in circuit breaker locking and unlocking structure Download PDFInfo
- Publication number
- CN114496672B CN114496672B CN202210176767.4A CN202210176767A CN114496672B CN 114496672 B CN114496672 B CN 114496672B CN 202210176767 A CN202210176767 A CN 202210176767A CN 114496672 B CN114496672 B CN 114496672B
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- Prior art keywords
- circuit breaker
- lock catch
- limiting
- state
- handle
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- 238000010586 diagram Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- H01H71/10—Operating or release mechanisms
-
- 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
Landscapes
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention relates to the technical field of circuit breakers, in particular to a locking and unlocking structure of a plug-in circuit breaker, which comprises an operating handle, a lock catch and a shell, wherein the operating handle comprises a handle part, a handle center hole and a connecting part; the hasp includes the hasp body, and the hasp body is equipped with hasp centre bore, spout, lock tooth, hasp and rotates the setting on the casing through the handle centre bore, and spout and connecting portion sliding connection, lock tooth stretch out outside the casing, and when the circuit breaker was in the combined floodgate state, in this state circuit breaker grafting frame, under this state, circuit breaker hasp can't shrink completely, leads to it to have spacingly always with the frame, guarantees that the switch can't dismantle at the closed state forever, guarantees the security of use.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a locking and unlocking structure of a plug-in circuit breaker.
Background
The circuit breaker is divided into the following mounting modes: the plug-in circuit breaker is widely used on various electrical equipment, the locking device is used for guaranteeing whether the switch is installed in place or not before closing, prompting an operator, and after the switch is in a switching-off state after the switch is not in place and the unlocking of the switch can not be closed, the handle is pressed down, the switching-off and tripping state separation of the switch is guaranteed, and the safety of the operation of the switch is guaranteed.
Disclosure of Invention
The present invention provides a plug-in circuit breaker locking and unlocking structure to solve the problems described in the background art.
The method comprises the following steps: the utility model provides a plug-in circuit breaker locking and unlocking structure, includes operating handle 1, hasp 2, casing 5, and operating handle 1 includes handle portion 101, handle centre bore 102, connecting portion 103, and operating handle 1 middle part is equipped with handle centre bore 102, and operating handle 1 passes through handle centre bore 102 and installs on the epaxial in casing 5 and can rotate around the axle, and handle portion 101 is arranged in outside casing 5, and connecting portion 103 parcel is in casing 5; the lock catch 2 comprises a lock catch body 201, wherein the lock catch body 201 is provided with a lock catch central hole 202, a sliding groove 203, lock teeth 204 and the lock catch 2 is rotatably arranged on the shell 5 through the handle central hole 102, the sliding groove 203 is in sliding connection with the connecting part 103, and the lock teeth 204 extend out of the shell 5.
Preferably, the tail end of the connecting portion 103 is provided with a clamping boss 1032, the shell 5 is correspondingly provided with a clamping seat 5021, and when the circuit breaker is in an unlocking state, the clamping boss 1032 is in touch and interference fit with the clamping seat 5021, so that the circuit breaker is stabilized in the unlocking state.
Preferably, the latch body 201 is provided with a spring mounting groove 206, a reset spring 207 is sleeved in the spring mounting groove 206, one end of the reset spring 207 is fixed in the spring mounting groove 206, and the other end of the reset spring 207 is clamped on the shell 5, so that the latch 2 is always in a locking state under the action of no external force or returns to the locking state after the external force is removed.
Preferably, the connection portion 103 is provided with a connection port 1031, the connection port 1031 is connected with a mechanism link 4, the other end of the mechanism link 4 is connected with a rotating member 3, and the rotating member 3 is rotatably arranged on the housing 5.
Preferably, the rotating member 3 is provided with a rotating member center hole 301, the rotating member 3 is rotatably arranged on the housing 5 through the rotating member center hole 301, the rotating member 3 is connected with a locking assembly through a balance pull rod 8, and the rotating member 3 is used for controlling the closing and opening of the locking assembly through rotation.
Preferably, a first limiting part 5012 and a second limiting part 5011 are arranged on the shell 5, a first limiting step 307 is arranged on the right side of the rotating part 3, the first limiting step 307 is in contact with the first limiting part 5012 when the circuit breaker is in a closing state, a second limiting step 308 is arranged on the left side of the rotating part 3, and the second limiting step 308 is in contact with the second limiting part 5011 when the circuit breaker is in a breaking state, so that the rotating angle of the rotating part 3 is limited.
Preferably, the rotating member 3 at the left side of the second limiting step 308 is provided with a yielding groove 305, a limiting surface 306 is formed between the yielding groove 305 and the first limiting step 307, the tail end of the lock catch body 201 is provided with an arc surface 205, the first limiting step 307 is in contact with the first limiting member 5012 when the circuit breaker is in a closed state, the limiting surface 306 faces upwards, when the lock catch body 201 is retracted inwards by external force, the arc surface 205 is in contact with the limiting surface 306, the lock catch body 201 is limited to retract inwards by external force, unlocking of the lock catch is prevented, when the circuit breaker is in an open state, the second limiting step 308 is in contact with the second limiting member 5011, the yielding groove 305 faces upwards at the moment, and when the lock catch body 201 is retracted inwards by the operating handle 1, the arc surface 205 is not in contact with the yielding groove 305, so that unlocking is easy.
Preferably, the rotating member 3 is provided with a bar-shaped chute 303, the mechanism connecting rod 4 is inserted into the bar-shaped chute 303 to be connected, when the circuit breaker is in a switching-off and switching-on state, the mechanism connecting rod 4 contacts with the upper end of the bar-shaped chute 303, when the circuit breaker is in a switching-on state, the mechanism connecting rod 4 contacts with the lower end of the bar-shaped chute 303, when the circuit breaker is changed from the switching-on state to the switching-off state, the operating handle 1 needs to be pulled upwards to drive the lock catch 2 to forget to retract, at the moment, the limiting step two 308 and the limiting member two 5011 are in contact with each other, the rotating member 2 cannot rotate, the operating handle 1 drives the mechanism connecting rod 4 to move leftwards, and the mechanism connecting rod 4 slides in the bar-shaped chute 303, so that the operating handle 1, the mechanism connecting rod 4 and the lock catch 2 have enough movement space.
Advantageous effects
The locking and unlocking structure of the circuit breaker is matched with an external handle, so that the circuit breaker can be unlocked only at a brake-separating position, and compared with the existing structure on the market, the structure has fewer parts and more reliable functions;
the operating handle has three states, so that an operator can clearly see the states when operating the circuit breaker.
When the circuit breaker is in a closing state and the circuit breaker is inserted into the frame 6 in place, in the state, the circuit breaker lock catch cannot be completely retracted, so that the circuit breaker is always limited with the frame 6, the switch can not be detached forever in the closing state, and the use safety is ensured;
when the circuit breaker is in the unlocking state, in the state, the limit boss is matched with the extension characteristic of the middle seat on the handle, so that the circuit breaker can be kept in the state, unless the handle is driven by the square handle, the handle and the lock catch can keep the position all the time, the circuit breaker is convenient for an operator to detach, the bar-shaped chute is arranged on the rotating part, the handle and the connecting rod can move for a certain displacement continuously, and after the circuit breaker returns, the circuit breaker can continue to move until the rotating part.
Drawings
FIG. 1 is a schematic diagram of a split-gate state structure according to the present invention;
FIG. 2 is a schematic diagram of a closing state structure according to the present invention;
FIG. 3 is a schematic view of an unlocked state structure of the present invention;
FIG. 4 is a schematic view of an unlocked state structure of the present invention;
FIG. 5 is a schematic diagram of a closing state structure according to the present invention;
FIG. 6 is a schematic view of the structure of the operating handle of the present invention;
FIG. 7 is a schematic view of a latch structure according to the present invention;
FIG. 8 is a schematic view of a rotor structure according to the present invention;
FIG. 9 is a schematic side sectional view of the present invention;
fig. 10 is a schematic diagram of a circuit breaker switching-on state structure according to the present invention;
Fig. 11 is a schematic diagram of a circuit breaker switching-off state structure according to the present invention;
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
Furthermore, it should be understood that references to "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships illustrated in the drawings, and are merely for purposes of describing the present invention, and do not indicate or imply that the device or element being referred to must have this particular orientation, operate in a particular orientation configuration, and thus should not be construed as limiting the present invention.
As shown in fig. 1 to 11:
The utility model provides a plug-in circuit breaker locking and unlocking structure, includes operating handle 1, hasp 2, casing 5, and operating handle 1 includes handle portion 101, handle centre bore 102, connecting portion 103, and operating handle 1 middle part is equipped with handle centre bore 102, and operating handle 1 passes through handle centre bore 102 and installs on the epaxial in casing 5 and can rotate around the axle, and handle portion 101 is arranged in outside casing 5, and connecting portion 103 parcel is in casing 5; the lock catch 2 comprises a lock catch body 201, wherein the lock catch body 201 is provided with a lock catch central hole 202, a sliding groove 203, lock teeth 204 and the lock catch 2 is rotatably arranged on the shell 5 through the handle central hole 102, the sliding groove 203 is in sliding connection with the connecting part 103, and the lock teeth 204 extend out of the shell 5.
Wherein, connecting portion 103 end is provided with joint boss 1032, and casing 5 includes shell 501 and well seat 502, is provided with extension characteristic joint seat 5021 on the well seat 502 corresponds, and when the circuit breaker was in the unblock state, joint boss 1032 and joint seat 5021 touching and interference fit make the circuit breaker stable in the unblock state, need exert certain thrust when releasing the unblock state, and the feedback is obvious during the installation, and the operation of being convenient for confirms, and extension characteristic joint seat 5021 also can set up on shell 501 of course.
Wherein, a spring mounting groove 206 is formed on the lock catch body 201, a return spring 207 is sleeved in the spring mounting groove 206, one end of the return spring 207 is fixed in the spring mounting groove 206, and the other end is clamped on the shell 5, so that the lock catch 2 is always in a locking state under the action of no external force or returns to the locking state after the external force is returned.
The connection portion 103 is provided with a connection port 1031, the connection port 1031 is connected with a mechanism link 4, the other end of the mechanism link 4 is connected with a rotating member 3, and the rotating member 3 is rotatably arranged on the housing 5.
Wherein, rotate the piece 3 and be provided with and rotate a centre bore 301, rotate the piece 3 and rotate the setting on casing 5 through rotating a centre bore 301, rotate the piece 3 and be connected with the hasp subassembly through balanced pull rod 8 to rotate the combined floodgate and the separating brake of control hasp subassembly through rotating the piece 3, specifically: be provided with balanced pull rod connecting hole 302 on the rotating member 3, be connected with balanced pull rod 8 on the balanced pull rod connecting hole 302, the hasp subassembly 7 is connected to balanced pull rod 8 other end, hasp subassembly 7 includes the hasp casing, jump knot 701, the intermediate seat 702, moving contact 703, when the circuit breaker is in the combined floodgate state, rotating member 3 is in balanced state through balanced pull rod 8, jump knot 701 and hasp casing, moving contact 703 touches electrically conductive with stationary contact 9, when the circuit breaker is in the separating brake state, rotating member 3 rotates, drive hasp subassembly 7 rotation for moving contact 703 and stationary contact 9 separation outage.
Wherein, be provided with spacing piece one 5012, spacing piece two 5011 on the casing 5, rotate 3 right side and be provided with spacing step one 307, limit step one 307 is inconsistent with spacing piece one 5012 when the circuit breaker is in the combined floodgate state, rotates 3 left side and is provided with spacing step two 308, and spacing step two 308 is inconsistent with spacing piece two 5011 when the circuit breaker is in the brake separating state to the rotation angle of restriction rotation piece 3.
The rotating member 3 on the left side of the second limiting step 308 is provided with a yielding groove 305, a limiting surface 306 is formed between the yielding groove 305 and the first limiting step 307, an arc surface 205 is arranged at the tail end of the lock catch body 201, the first limiting step 307 is in contact with the first limiting member 5012 when the circuit breaker is in a closing state, the limiting surface 306 faces upwards, when the lock catch body 201 is contracted inwards by external force, the arc surface 205 is in contact with the limiting surface 306, the lock catch body 201 is limited to contract inwards by external force, locking and unlocking are prevented, when the circuit breaker is in a separating state, the second limiting step 308 is in contact with the second limiting member 5011, the yielding groove 305 faces upwards at the moment, and when the lock catch body 201 is contracted inwards by the operating handle 1, the arc surface 205 is not in contact with the yielding groove 305, so that unlocking is easy.
The rotating member 3 is provided with a bar-shaped chute 303, the mechanism connecting rod 4 is inserted into the bar-shaped chute 303 to be connected, when the circuit breaker is in a switching-off state and a switching-on state, the mechanism connecting rod 4 contacts the upper end of the bar-shaped chute 303, when the circuit breaker is in a switching-on state, the mechanism connecting rod 4 contacts the lower end of the bar-shaped chute 303, when the circuit breaker is changed from the switching-on state to the switching-on state, the operating handle 1 needs to be broken upward to drive the lock catch 2 to retract inwards, at the moment, the limiting step two 308 and the limiting member two 5011 are in contact with each other, the rotating member 2 cannot rotate, the operating handle 1 drives the mechanism connecting rod 4 to move left, and the mechanism connecting rod 4 slides in the bar-shaped chute 303, so that the operating handle 1, the mechanism connecting rod 4 and the lock catch 2 have enough movement space.
In this embodiment, the sliding groove 203 is slidably connected with the connecting portion 103, and the mechanism connecting rod 4 is extended and then extends into the sliding groove 203 to drive the buckle to move, which can be replaced by the connecting portion 103 to drive the sliding groove without any creative effort, or the connecting portion 103 and the mechanism connecting rod 4 are integrally arranged, without departing from the protection scope of the present invention.
Claims (3)
1. The utility model provides a plug-in circuit breaker locking and unblock structure, includes operating handle (1), hasp (2), casing (5), its characterized in that: the operating handle (1) comprises a handle part (101), a handle center hole (102) and a connecting part (103), wherein the handle center hole (102) is formed in the middle of the operating handle (1), the operating handle (1) is installed on a shaft in the shell (5) through the handle center hole (102) and can rotate around the shaft, the handle part (101) is arranged outside the shell (5), and the connecting part (103) is wrapped in the shell (5); the lock catch (2) comprises a lock catch body (201), wherein the lock catch body (201) is provided with a lock catch central hole (202), a sliding groove (203) and lock teeth (204), the lock catch (2) is rotatably arranged on the shell (5) through the lock catch central hole (202), the sliding groove (203) is in sliding connection with the connecting part (103), and the lock teeth (204) extend out of the shell (5);
The tail end of the connecting part (103) is provided with a clamping boss (1032), the shell (5) is correspondingly provided with a clamping seat (5021), when the circuit breaker is in an unlocking state, the clamping boss (1032) is in touch and interference fit with the clamping seat (5021) to ensure that the circuit breaker is stabilized in the unlocking state,
A connecting port (1031) is formed in the connecting portion (103), a mechanism connecting rod (4) is connected to the connecting port (1031), a rotating piece (3) is connected to the other end of the mechanism connecting rod (4), and the rotating piece (3) is rotatably arranged on the shell (5);
The circuit breaker is characterized in that a first limiting part (5012) and a second limiting part (5011) are arranged on the shell (5), a first limiting step (307) is arranged on the right side of the rotating part (3), the first limiting step (307) is in contact with the first limiting part (5012) when the circuit breaker is in a closing state, a second limiting step (308) is arranged on the left side of the rotating part (3), and the second limiting step (308) is in contact with the second limiting part (5011) when the circuit breaker is in a separating state, so that the rotating angle of the rotating part (3) is limited;
A yielding groove (305) is formed in the rotating piece (3) on the left side of the second limiting step (308), a limiting surface (306) is formed between the yielding groove (305) and the first limiting step (307), an arc surface (205) is arranged at the tail end of the lock catch body (201), when the circuit breaker is in a closing state, the first limiting step (307) is in contact with the first limiting piece (5012), at the moment, the limiting surface (306) faces upwards, when the lock catch body (201) is retracted inwards by an external force, the arc surface (205) is in contact with the limiting surface (306), the lock catch body (201) is limited to be retracted inwards by the external force, lock catch unlocking is prevented, when the circuit breaker is in a separating state, the second limiting step (308) is in contact with the second limiting piece (5011), at the moment, the yielding groove (305) faces upwards, and when the lock catch body (201) is retracted inwards by the operating handle 1, the arc surface (205) is not in contact with the yielding groove (305);
The rotating piece (3) is provided with a bar-shaped chute (303), the mechanism connecting rod (4) is inserted into the bar-shaped chute (303) to be connected, the mechanism connecting rod (4) contacts with the upper end of the bar-shaped chute (303) when the circuit breaker is in a switching-off and switching-on state, and the mechanism connecting rod (4) contacts with the lower end of the bar-shaped chute (303) when the circuit breaker is in an unlocking state.
2. The plug-in circuit breaker locking and unlocking structure according to claim 1, wherein a spring mounting groove (206) is formed in the lock catch body (201), a return spring (207) is sleeved in the spring mounting groove (206), one end of the return spring (207) is fixed in the spring mounting groove (206), and the other end of the return spring is clamped on the shell (5).
3. The plug-in circuit breaker locking and unlocking structure according to claim 1, wherein the rotating member (3) is provided with a rotating member center hole (301), the rotating member (3) is rotatably arranged on the housing (5) through the rotating member center hole (301), the rotating member (3) is connected with a lock catch assembly through a balance pull rod (8), and the closing and opening of the lock catch assembly are controlled through the rotation of the rotating member (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210176767.4A CN114496672B (en) | 2022-02-25 | 2022-02-25 | Plug-in circuit breaker locking and unlocking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210176767.4A CN114496672B (en) | 2022-02-25 | 2022-02-25 | Plug-in circuit breaker locking and unlocking structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114496672A CN114496672A (en) | 2022-05-13 |
| CN114496672B true CN114496672B (en) | 2024-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210176767.4A Active CN114496672B (en) | 2022-02-25 | 2022-02-25 | Plug-in circuit breaker locking and unlocking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114496672B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107993900A (en) * | 2017-10-26 | 2018-05-04 | 上海良信电器股份有限公司 | A kind of plug-in type miniature circuit breaker |
| CN111900042A (en) * | 2020-07-09 | 2020-11-06 | 德力西电气有限公司 | Locking and unlocking device for plug-in circuit breaker |
| CN213781965U (en) * | 2020-10-29 | 2021-07-23 | 环宇高科有限公司 | Plug-in circuit breaker |
| CN217361476U (en) * | 2022-02-25 | 2022-09-02 | 江西航同电气科技有限公司 | Locking and unlocking structure of plug-in circuit breaker |
-
2022
- 2022-02-25 CN CN202210176767.4A patent/CN114496672B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107993900A (en) * | 2017-10-26 | 2018-05-04 | 上海良信电器股份有限公司 | A kind of plug-in type miniature circuit breaker |
| CN111900042A (en) * | 2020-07-09 | 2020-11-06 | 德力西电气有限公司 | Locking and unlocking device for plug-in circuit breaker |
| CN213781965U (en) * | 2020-10-29 | 2021-07-23 | 环宇高科有限公司 | Plug-in circuit breaker |
| CN217361476U (en) * | 2022-02-25 | 2022-09-02 | 江西航同电气科技有限公司 | Locking and unlocking structure of plug-in circuit breaker |
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| Publication number | Publication date |
|---|---|
| CN114496672A (en) | 2022-05-13 |
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