Locking device

Abstract

The invention relates to the field of industrial power transmission, in particular to a locking device which comprises a fixed plate, a rotating plate, a lock and a connecting piece. Wherein the fixed plate is fixedly arranged on one side of the partition switch, a through hole is formed in the fixed plate, and the rotating plate comprises a locking hole and a locking piece located at the tail end. And the connecting piece is rotationally connected to the fixed plate and the rotating plate. When the partition switch supplies power and does not need to be locked, the fixed plate and the rotating plate do not coincide. When the partition switch is powered off and needs to be locked, the rotating plate rotates towards the fixed plate around the connecting piece until the through hole and the locking hole are at least partially overlapped, at the moment, the handle of the partition switch rotates downwards, the locking piece rotates upwards and is clamped on the handle of the partition switch, the lockset is inserted into the locking hole and the through hole, and rotation of the rotating plate is limited. And the keys of the locksets are in one-to-one correspondence with the locksets, so that other workers are prevented from unlocking the handles of the partition switches by mistake, and safety accidents are avoided.

Description

Technical Field

[0001] The present invention relates to the field of industrial power transmission, and in particular to a locking device. Background Art

[0002] At present, many operating units use electric locomotives to transmit electricity during work. The traction line of the electric locomotive uses a partition switch to transmit and cut off power in different areas. Therefore, when using a partition switch at a long distance, due to untimely communication, when power is needed, it is impossible to quickly and accurately locate the partition switch for power transmission, and the wrong partition switch is used for power transmission, causing serious safety accidents. In actual operation, it is often the case that one person cuts off the power while the other transmits the power. Misunderstandings may occur in the communication between the two, and the wrong partition switch may be operated during power transmission, endangering the safety of the staff. Summary of the invention

[0003] The present invention is made to solve the above technical problems, and its purpose is to provide a locking device that can lock the handle of the partition switch and only relevant personnel can operate to open it, thereby avoiding the occurrence of safety accidents.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a locking device, comprising: a fixed plate, fixedly arranged on one side of a partition switch, and provided with a through hole; a rotating plate, comprising a locking hole and a locking piece located at the end; a lock; a connecting piece, rotatably connected to the fixed plate and the rotating plate; wherein, when the rotating plate rotates toward the fixed plate around the connecting piece until the through hole and the locking hole at least partially overlap, the locking piece is clamped on the handle of the partition switch, and the lock is inserted into the locking hole and the through hole to limit the rotation of the rotating plate.

[0005] Preferably, the locking member is annular, and the axis of the locking member is arranged parallel to the fixing plate.

[0006] Preferably, the locking member and the rotating plate are connected by welding.

[0007] Preferably, the diameter of the locking piece is larger than the bottom width of the partition switch and smaller than the top width of the partition switch.

[0008] Preferably, the rotating plate includes a latch, and a latch groove is provided on the side wall of the partition switch; when the fixed plate and the rotating plate rotate and overlap, the latch is fixed in the latch groove.

[0009] Preferably, when the fixed plate and the rotating plate rotate to overlap, the axes of the through hole and the locking hole are located on the same straight line, and the through hole and the locking hole are respectively located at one end of the fixed plate and the rotating plate away from the connecting member.

[0010] Preferably, the radius of the through hole is greater than or equal to the radius of the locking hole.

[0011] Preferably, the connecting member is a fixing bolt.

[0012] Preferably, the fixed plate and the rotating plate are rigid plates, and the fixed plate and the rotating plate are detachably connected.

[0013] Preferably, the width of the fixed plate is greater than or equal to the width of the rotating plate.

[0014] According to the above description and practice, the locking device of the present invention includes a fixed plate, a rotating plate, a lock and a connecting piece. The fixed plate is fixedly arranged on one side of the partition switch, and a through hole is arranged on the fixed plate, and the rotating plate includes a locking hole and a locking piece at the end. The connecting piece is rotatably connected to the fixed plate and the rotating plate. When the partition switch is powered on and does not need to be locked, the fixed plate and the rotating plate do not overlap. When the partition switch is powered off and needs to be locked, the rotating plate rotates around the connecting piece toward the fixed plate until the through hole and the locking hole at least partially overlap, at which time the handle of the partition switch rotates downward, the locking piece rotates upward and is stuck on the handle of the partition switch, and the lock is inserted into the locking hole and the through hole to limit the rotation of the rotating plate, thereby fixing and locking the handle of the partition switch, and the key of the lock corresponds to the lock one by one, so as to avoid other staff from misoperating when power is supplied and unlocking the handle of the partition switch, thereby avoiding the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a locking device involved in one embodiment of the present invention.

[0016] Figure 2 The figure is a side view of a locking device in an embodiment of the present invention in a power supply state.

[0017] Figure 3 This is a front view of a locking device according to an embodiment of the present invention installed on a wall.

[0018] Figure 4 It is a side view of a locking device in an embodiment of the present invention in a power-off state. DETAILED DESCRIPTION

[0019] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0020] In addition, the accompanying drawings are only schematic diagrams of the present invention and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, so their repeated description will be omitted. It should be noted that in the present invention, the terms "including", "configured with", and "set in" are used to express the meaning of open-ended inclusion, and mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms "first", "second", etc. are only used as marks, not to limit the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, only for the convenience of describing the present invention 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 therefore cannot be understood as a limitation on the present invention.

[0021] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "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 a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The present invention discloses a locking device for locking the handle of a partition switch. Figures 1 to 4The locking device includes a fixed plate 1, a rotating plate 2, a lock 3 and a connecting member 4. The fixed plate 1 is fixedly arranged on one side of the partition switch 5, and is provided with a through hole 10. The rotating plate 2 includes a locking hole 21 and a locking member 22 at the end. The connecting member 4 is rotatably connected to the fixed plate 1 and the rotating plate 2. When the partition switch 5 is powered and does not need to be locked, the fixed plate 1 and the rotating plate 2 do not overlap. When the partition switch 5 is powered off and needs to be locked, the rotating plate 2 rotates around the connecting member 4 toward the fixed plate 1 until the through hole 10 and the locking hole 21 at least partially overlap, at which time the handle 51 of the partition switch 5 rotates downward, the locking member 22 rotates upward and is stuck on the handle 51 of the partition switch 5, and the lock 3 is inserted into the locking hole 21 and the through hole 10 to limit the rotation of the rotating plate 2, thereby fixing and locking the handle 51 of the partition switch 5, and the key of the lock 3 corresponds to the lock 3 one by one, thereby preventing other staff from misoperating during power transmission and unlocking the handle 51 of the partition switch 5, thereby avoiding the occurrence of safety accidents. In addition, since the partition switch 5 is locked by the locking device at this time, only staff with the lock key can open the locking device. When the power is cut off and the power is transmitted, no additional staff is required to guard the specific partition switch 5 to prevent other staff from misoperating the partition switch 5 to transmit power and causing safety accidents, thereby reducing labor consumption to a certain extent. Moreover, the partition switch 5 can be locked only by setting an additional locking device without additional modification on the partition switch 5, which further reduces the production cost. The existing partition switch 5 can also be locked by directly installing the above-mentioned partition switch 5.

[0023] The fixing plate 1 is installed on the partition switch 5 by welding or external structure to ensure that the relative position between the fixing plate 1 and the partition switch 5 does not change, thereby ensuring that when the locking device is used to fix the handle 51, the fixing plate 1 will not be separated from the partition switch 5, causing the locking device to fail. In addition, in order to provide a certain support for the locking device, one end of the fixing plate 1 abuts against the wall to maintain the stability of the fixing plate 1.

[0024] In some embodiments, the locking member 22 is annular, and the axis of the locking member 22 is arranged parallel to the fixed plate 1. When the partition switch 5 is in the power-off state, the rotating plate 2 is rotated until the locking member 22 is mounted on the handle 51, and the rotating plate 2 is fixed to the fixed plate 1 through the lock 3, thereby realizing the locking effect of the locking member 22 on the partition switch 5, thereby preventing others from operating the partition switch 5 for power supply without permission, causing a safety accident.

[0025] In order to ensure that the locking piece 22 set on the rotating piece will not fall off the rotating plate 2 when locking the partition switch 5, thereby causing the locking device to fail to lock the partition switch 5, in some embodiments, the locking piece 22 and the rotating plate 2 are welded and connected, and the locking piece 22 and the rotating plate 2 are further formed into one body, so as to prevent the locking piece 22 from falling off the rotating plate 2 to unlock the handle 51, and the partition switch 5 is no longer locked, which may cause safety accidents when the staff accidentally perform misoperation.

[0026] Since the locking piece 22 needs to lock the handle 51, it is also necessary to avoid a situation where the handle 51 and the locking piece 22 have a large size difference that results in invalid locking. In some embodiments, the diameter of the locking piece 22 is larger than the bottom width of the partition switch 5 and smaller than the top width of the partition switch 5. While ensuring that the locking piece 22 can lock the handle 51, the handle 51 will not shake in the locking piece 22, thereby avoiding accidents caused by accidental power supply.

[0027] Furthermore, since the partition switch 5 has different models, its handle 51 also has different sizes. In actual application, the size of the locking member 22 or the rotating plate 2 can be selected according to actual needs to lock the corresponding partition switch 5.

[0028] Furthermore, in order to further ensure that the rotating plate 2 and the fixed plate 1 overlap, so as to lock the partition switch 5 with the lock 3, in some embodiments, the rotating plate 2 includes a snap-fit ​​member (not shown), and a slot (not shown) is provided on the side wall of the partition switch 5. When the fixed plate 1 and the rotating plate 2 rotate and overlap, the snap-fit ​​member is fixed in the slot, and the fixed plate 1 and the rotating plate 2 remain in an overlapping state and do not move relative to each other, so that the lock 3 can be more easily inserted into the locking hole 21 and the through hole 10 to limit the rotation of the rotating plate 2 and achieve the locking of the partition switch 5.

[0029] In order to ensure that the lock 3 can smoothly pass through the through hole 10 and the locking hole 21, and avoid misalignment between the through hole 10 and the locking hole 21 to affect the locking of the partition switch 5 by the locking device, in some embodiments, when the fixed plate 1 and the rotating plate 2 rotate to overlap, the axes of the through hole 10 and the locking hole 21 are located on the same straight line. When the lock 3 passes through the through hole 10 and the locking hole 21, it can extend into the through hole 10 and the locking hole 21 along the axis direction of the through hole 10 and the locking hole 21, and the through hole 10 and the locking hole 21 are respectively located at the end of the fixed plate 1 and the rotating plate 2 away from the connecting member 4, which is convenient for adjusting the size of the through hole 10 and the locking hole 21 according to actual needs, so that the entire locking device can be applied to more usage scenarios.

[0030] Furthermore, in actual applications, the rotating plate 2 and the locking member 22 can be replaced and adjusted according to the actual needs. In order to ensure that the fixed plate 1 and the rotating plate 2 are always overlapped, the lock 3 can be used for locking. In some embodiments, the radius of the through hole 10 is greater than or equal to the radius of the locking hole 21, and the lock 3 can be selected and set according to the size of the locking hole 21 to avoid the size of the lock 3 not matching the size of the through hole 10 when the locking device is used to lock the partition switch 5, thereby affecting the locking effect of the locking device.

[0031] It can be understood that the connecting member 4 is a fixing bolt. When the fixed plate 1 and the rotating plate 2 are connected, the fixing bolt is used to connect the two. When the rotating plate 2 needs to be rotated to coincide with or separate from the fixed plate 1, the rotating plate 2 can rotate along the thread of the connecting member 4 to achieve a fixed track. On the one hand, it can prevent the rotating plate 2 from sliding when rotating, causing the position of the rotating plate 2 to change, affecting the coincidence between the through hole 10 and the locking hole 21, and further affecting the locking effect of the entire locking device; on the other hand, the fixed plate 1 and the rotating plate 2 are connected by threads, which further ensures that the two can be stably installed in both the locked state or the unlocked state.

[0032] Furthermore, in some embodiments, the fixed plate 1 and the rotating plate 2 are rigid plates, ensuring that when the locking device is used, the fixed plate 1 and the rotating plate 2 cannot be damaged artificially and lose the locking function, and the fixed plate 1 and the rotating plate 2 are detachably connected. In actual use, any one of the fixed plate 1 or the rotating plate 2 can be adjusted and replaced as needed to make the locking device suitable for more usage scenarios.

[0033] In some embodiments, the width of the fixed plate 1 is greater than or equal to the width of the rotating plate 2. On the one hand, the width of the fixed plate 1 is set wider, which strengthens the strength of the locking device to a certain extent. Since the rotating plate 2 is often adjusted according to actual needs, the width of the fixed plate 1 is greater than the width of the rotating plate 2 to ensure that when the rotating plate 2 is subsequently adjusted and replaced, the through hole 10 on the fixed plate 1 can always coincide with the locking hole 21 on the rotating plate 2, and the lock 3 can pass through the through hole 10 and the locking hole 21 to complete the locking of the partition switch 5.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A locking device for locking the handle of a partition switch, characterized in that: include: A fixing plate, fixedly arranged on one side of the partition switch, and having a through hole; A rotating plate including a locking hole and a locking member at an end thereof; Locks; A connecting member, rotatably connected to the fixed plate and the rotating plate; Among them, when the rotating plate rotates around the connecting member toward the fixed plate until the through hole and the locking hole at least partially overlap, the locking member is stuck on the handle of the partition switch, and the lock is inserted into the locking hole and the through hole to limit the rotation of the rotating plate.

2. The locking device according to claim 1, characterized in that: The locking piece is annular, and the axis of the locking piece is arranged parallel to the fixing plate.

3. The locking device according to claim 2, characterized in that: The locking piece and the rotating plate are connected by welding.

4. The locking device according to claim 2, characterized in that: The diameter of the locking piece is larger than the bottom width of the partition switch and smaller than the top width of the partition switch.

5. The locking device according to claim 1, characterized in that: The rotating plate includes a snap-fit ​​piece, and a snap-fit ​​groove is provided on the side wall of the partition switch; When the fixed plate and the rotating plate rotate and overlap, the buckle is fixed in the slot.

6. The locking device according to claim 1, characterized in that: When the fixed plate and the rotating plate rotate to overlap, the axes of the through hole and the locking hole are located on the same straight line, and the through hole and the locking hole are respectively located at one end of the fixed plate and the rotating plate away from the connecting member.

7. The locking device according to claim 6, characterized in that: The radius of the through hole is greater than or equal to the radius of the locking hole.

8. The blasting charge according to claim 1, characterized in that The connecting piece is a fixing bolt.

9. The blasting charge according to claim 1, characterized in that: The fixed plate and the rotating plate are rigid plates, and the fixed plate and the rotating plate are detachably connected.

10. The blasting charge according to claim 1, characterized in that The width of the fixed plate is greater than or equal to the width of the rotating plate.

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