Padlock switching device and circuit breaker
By designing a padlock switching device including padlock parts, handle wheels, manual switches and support members, the problem of poor safety when existing circuit breakers fail online is solved, and the safety padlock of the padlock parts is realized in the open state is improved, and the safety and reliability of the circuit breakers are improved.
Patent Information
- Application Number
- CN202421881366.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-05
AI Technical Summary
It is difficult to achieve safe padlock switching when existing circuit breakers fail, resulting in poor safety.
A padlock switching device is designed, including a padlock part, a handle wheel, a manual switch and a support. Through the limit groove, a shaft and a limit spring, the mutual restraint of the padlock part in the opening and closing states is achieved, ensuring that the padlock part can only be padlocked in the opening state.
It realizes that the padlock can be safely padlocked in the open state, preventing the missed padlock in the closed state, and improving the safety and reliability of the circuit breaker.
Smart Images
Figure CN222939843U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a padlock switching device and a circuit breaker. Background Art
[0002] The padlock device on the electric operating mechanism is an essential component part, mainly used for safety maintenance during line faults. Manually pull down the padlock, at this time, the circuit breaker cannot be manually closed, and the automatic closing function is automatically turned off. And after the padlock is hung on the padlock device, it also physically tells others that the line is in a maintenance state.
[0003] The effect that the padlock device needs to achieve is to hang the padlock in the opening state. When it is in the closing position, the padlock cannot be hung. And when the opening position is pulled to the padlock position, the miniature circuit breaker cannot be manually closed. However, it is difficult for the existing circuit breakers to achieve the above effects, resulting in poor safety.
[0004] In view of this, it is necessary to improve the existing padlock switching device to solve the above problems. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a padlock switching device to solve the problem of poor safety of the existing circuit breaker.
[0006] To achieve the above purpose, the utility model provides a padlock switching device, which includes a padlock part, a handle runner, a manual switch, and a support part for supporting the padlock part and the handle runner. The padlock part includes a switch hole for the manual switch to be inserted, a pivot hole, and a first limit groove. The support part is provided with a rotating shaft inserted into the padlock part for the padlock part to rotate, and a limit shaft that can move axially relative to the support part. The handle runner is provided with a second limit groove. The handle runner has an opening state and a closing state. When the handle runner is in the closing state, the second limit groove is axially spaced from the limit shaft. When the handle runner is in the opening state, the second limit groove is adjacent to the limit shaft. The padlock part has a padlock position and a non-padlock position. When the padlock part is in the non-padlock position, the limit shaft is received in the first limit groove. When the padlock part is in the padlock position, the limit shaft is received in the second limit groove. When the handle runner is in the closing state, the limit shaft axially abuts against the handle runner to limit the padlock part from entering the padlock position.
[0007] As a further improvement of the utility model, the manual switch has a first state of being inserted into the switch hole and a second state of being separated from the switch hole. When the manual switch is in the first state, the padlock part is in the non-padlock position and cannot be rotated to the padlock position. When the manual switch is in the second state, the padlock part can be switched between the non-padlock position and the padlock position.
[0008] As a further improvement of the present utility model, a receiving groove for receiving the limiting shaft is provided on the support member, a limiting spring is provided in the receiving groove, the limiting shaft has a first limiting end facing the padlock member and a second limiting end facing the handle runner, a limiting baffle protruding radially inwards is provided in the receiving groove, the diameter of the first limiting end is larger than that of the second limiting end, the limiting spring abuts between the limiting baffle and the first limiting end, and a through hole for the second limiting end to protrude is provided on the limiting baffle.
[0009] As a further improvement of the present utility model, the first limiting end has a driving arc surface, a driving inclined surface is provided on one side of the first limiting groove, when the padlock member is switched from the non-padlocked position to the padlocked position, the driving inclined surface abuts the driving arc surface of the first limiting end so that the limiting shaft moves axially to insert into the second limiting groove.
[0010] As a further improvement of the present utility model, the padlock member includes a rotating handle for gripping.
[0011] As a further improvement of the present utility model, a buckling groove is provided on the rotating handle.
[0012] As a further improvement of the present utility model, a padlock hole is provided on the padlock member, and the padlock hole is exposed when the padlock member is in the padlocked position.
[0013] As a further improvement of the present utility model, an installation member for passing through the pivot hole is provided at one end of the rotating shaft away from the handle runner, and the installation member is axially limited with the padlock member.
[0014] As a further improvement of the present utility model, an anti-detachment groove is provided at one end of the padlock member away from the handle runner, and an anti-detachment buckle protruding radially into the anti-detachment groove is provided on the support member.
[0015] The present utility model also provides a circuit breaker, the circuit breaker includes the padlock switching device as described above and a housing, and the padlock member and the manual switch are exposed from the housing.
[0016] The beneficial effects of the present utility model are: the padlock switching device and the circuit breaker of the present utility model are mutually restricted by the padlock member, the watch and the manual switch, are safe and reliable, have firm interlocking and good linkage. Description of the Drawings
[0017] Figure 1 is a schematic structural view of the circuit breaker of the present utility model;
[0018] Figure 2 is an exploded structural view of the circuit breaker of the present utility model;
[0019] Figure 3 is a schematic structural diagram of the padlock switching device of the present utility model when the circuit breaker is closed;
[0020] Figure 4 is Figure 3 an enlarged structural diagram of area A in
[0021] Figure 5 is a schematic structural diagram of the padlock switching device of the present utility model when the circuit breaker is tripped;
[0022] Figure 6 is Figure 5 an enlarged structural diagram of area B in
[0023] Figure 7 is a schematic structural diagram of the padlock member of the padlock switching device of the present utility model. Detailed implementation manners
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0027] Such asFigures 1 to 7 As shown, the circuit breaker 100 includes a padlock switching device 1 and a housing 2.
[0028] As Figures 3 to 7 shown, the padlock switching device 1 includes a padlock member 11, a handle runner 12, a manual switch 13, and a support member 14 for supporting the padlock member 11 and the handle runner 12.
[0029] The padlock member 11 and the manual switch 13 are exposed from within the housing 2 for manual operation by the user.
[0030] As Figure 7 shown, the padlock member 11 includes a switch hole 111 for the manual switch 13 to be inserted into, a pivot hole 112, a first limit groove 113, a rotating handle 114, a padlock hole 115, and an anti - detachment groove 116. The padlock member 11 has a padlock position and a non - padlock position, which are distinguished by whether it rotates relative to the pivot hole 112.
[0031] The rotating handle 114 is provided for the user to hold, so as to drive the padlock member 11 to rotate relative to the pivot hole 112. The rotating handle 114 is provided with a holding groove 117, which facilitates the user's operation and makes it easier for the user to hold the rotating handle 114.
[0032] The manual switch 13 can move axially to have a first state of inserting into the switch hole 111 and a second state of disengaging from the switch hole 111. When the manual switch 13 is in the first state, the padlock member 11 is in the non - padlock position and cannot rotate to the padlock position. When the manual switch 13 is in the second state, the padlock member 11 can be switched between the non - padlock position and the padlock position.
[0033] The padlock hole 115 is exposed when the padlock member 11 is in the padlock position. Here, the exposure means being exposed outside the housing 2. At this time, inserting a lock into the padlock hole 115 can prevent the padlock member 11 from returning to the non - padlock position and causing danger.
[0034] The opening of the first limit groove 113 faces the handle runner 12. The anti - detachment groove 116 is opened on the side of the padlock member 11 away from the handle runner 12, and the opening of the anti - detachment groove 116 faces away from the first limit groove 113.
[0035] As Figures 3 to 6 shown, the support member 14 is provided with a rotating shaft 41 inserted into the padlock member 11 for the padlock member 11 to rotate, a limit shaft 42 that can move axially relative to the support member 14, a receiving groove 43 for receiving the limit shaft 42, and an anti - detachment buckle 44.
[0036] One end of the rotating shaft 41 away from the handle runner 12 is provided with a mounting member 411 for passing through the pivot hole 112. The mounting member 411 is axially limited with the locking member 11. During installation, the locking member 11 can be passed through by the mounting member 411 at an angle, and then rotated by a certain angle so that the mounting member 411 is axially limited with the locking member 11, preventing the locking member 11 from detaching from the support member 14. Such a setting makes the installation of the locking member 11 convenient and is beneficial to processing.
[0037] The anti-release buckle 44 protrudes radially in the anti-release groove 116. The anti-release groove 116 extends in the circumferential direction so that the locking hole 115 gives way to the anti-release buckle 44 during rotation.
[0038] The handle runner 12 is provided with a second limiting groove 121. The handle runner 12 has a closing state and an opening state. When the handle runner 12 is in the closing state, the second limiting groove 121 is axially spaced from the limiting shaft 42. When the handle runner 12 is in the opening state, the second limiting groove 121 is adjacent to the limiting shaft 42. When the locking member 11 is in the non-locking position, the limiting shaft 42 is received in the first limiting groove 113. When the locking member 11 is in the locking position, the limiting shaft 42 is received in the second limiting groove 121. When the handle runner 12 is in the closing state, the limiting shaft 42 abuts against the handle runner 12 axially to limit the locking member 11 from entering the locking position.
[0039] A limiting spring 431 is provided in the receiving groove 43. The limiting shaft 42 has a first limiting end 421 facing the locking member 11 and a second limiting end 422 facing the handle runner 12. A limiting baffle 432 protruding radially inward is provided in the receiving groove 43. The diameter of the first limiting end 421 is larger than that of the second limiting end 422. The limiting spring 431 abuts between the limiting baffle 432 and the first limiting end 421. A through hole for the second limiting end 422 to protrude is provided on the limiting baffle 432.
[0040] The first limiting end 421 has a driving arc surface. A driving inclined surface 118 is provided on one side of the first limiting groove 113. When the locking member 11 is changed from the non-locking position to the locking position, the driving inclined surface 118 abuts against the driving arc surface of the first limiting end 421 so that the limiting shaft 42 moves axially to insert into the second limiting groove 121.
[0041] The working process of the padlock switching device 1 is as follows: When the circuit breaker 100 is closed, that is, the handle runner 12 is in the closed state, at this time the padlock member 11 is in the non-padlocked position. On the one hand, since the manual switch 13 is inserted into the switch hole 111, the padlock member 11 cannot be rotated to the padlocked position. On the other hand, even if the manual switch 13 is not inserted into the switch hole 111, the limiting shaft 42 axially abuts against the handle runner 12 to limit the padlock member 11 from entering the padlocked position. When the circuit breaker 100 is opened, that is, the handle runner 12 is in the open state, if the manual switch 13 is inserted into the switch hole 111, the padlock member 11 cannot be rotated to the padlocked position. When the user operates the manual switch 13 to make it in the second state, at this time the user can hold the rotating handle 114 to drive the padlock member 11 to rotate, so that the limiting member disengages from the first limiting groove 113 and inserts into the second limiting groove 121 to limit the rotation of the handle runner 12 and prevent closing. Then, a lock is inserted into the padlock hole 115 to limit the rotation of the padlock member 11. At this time, maintenance can be carried out without risk.
[0042] The padlock switching device 1 and the circuit breaker 100 of the present utility model restrict each other through the padlock member 11, the watch and the manual switch 13, are safe and reliable, have firm interlocking and good linkage.
[0043] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0044] The above-described embodiments only represent several implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims
1. A padlock switching device, characterized in that: The padlock switching device includes a padlock, a handle wheel, a manual switch and a support member for supporting the padlock and the handle wheel. The padlock includes a switch hole, a pivot hole and a first limit slot for the manual switch to be inserted. The support member is provided with a rotating shaft for inserting the padlock for the padlock to rotate, and a limit shaft that can move axially relative to the support member. The handle wheel is provided with a second limit slot. The handle wheel has an open state and a closed state. When the handle wheel is in the closed state, the first limit slot is The two limit grooves are axially spaced from the limit shaft. When the handle wheel is in the open state, the second limit groove is adjacent to the limit shaft. The padlock component has a padlock position and a non-padlock position. When the padlock component is in the non-padlock position, the limit shaft is accommodated in the first limit groove. When the padlock component is in the padlock position, the limit shaft is accommodated in the second limit groove. When the handle wheel is in the closed state, the limit shaft abuts against the handle wheel along the axial direction to limit the padlock component from entering the padlock position.
2. The padlock switching device according to claim 1, characterized in that: The manual switch has a first state in which it is inserted into the switch hole and a second state in which it is detached from the switch hole. When the manual switch is in the first state, the padlock member is in a non-padlocked position and cannot be rotated to a padlocked position. When the manual switch is in the second state, the padlock member can be switched between the non-padlocked position and the padlocked position.
3. The padlock switching device according to claim 1, characterized in that: The support member is provided with a receiving groove for accommodating the limit shaft, and a limit spring is provided in the receiving groove. The limit shaft has a first limit end facing the padlock member and a second limit end facing the handle wheel. The receiving groove is provided with a limit baffle protruding radially inward, and the diameter of the first limit end is larger than that of the second limit end. The limit spring is supported between the limit baffle and the first limit end, and the limit baffle is provided with a through hole for the second limit end to protrude.
4. The padlock switching device according to claim 3, characterized in that: The first limiting end has a driving arc surface, and a driving inclined surface is provided on one side of the first limiting groove. When the padlock member is turned from a non-padlocked position to a padlocked position, the driving inclined surface abuts against the driving arc surface of the first limiting end so that the limiting shaft moves axially to be inserted into the second limiting groove.
5. The padlock switching device according to claim 1, characterized in that: The padlock member includes a rotating handle for holding.
6. The padlock switching device according to claim 5, characterized in that: A buckling groove is provided on the rotating handle.
7. The padlock switching device according to claim 1, characterized in that: The padlock component is provided with a padlock hole, and the padlock hole is exposed when the padlock component is in a padlock position.
8. The padlock switching device according to claim 1, characterized in that: An end of the rotating shaft away from the handle rotating wheel is provided with a mounting member for passing through the pivot hole, and the mounting member is limited in position with the padlock member along the axial direction.
9. The padlock switching device according to claim 1, characterized in that: An anti-drop groove is arranged at one end of the padlock component away from the handle rotating wheel, and an anti-drop buckle is arranged on the support component, which radially protrudes into the anti-drop groove.
10. A circuit breaker, characterized in that: The circuit breaker comprises the padlock switching device as claimed in any one of claims 1 to 9 and a housing, wherein the padlock member and the manual switch are exposed from the housing.