Interlocking device for electrical equipment and electrical equipment
By designing a chain device for electrical equipment, the problem of complex operation and easy misoperation of traditional plug-in box interlocking mechanisms is solved, and the safety of electrical equipment during operation is improved.
Patent Information
- Application Number
- CN202421022341.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The traditional plug-in box interlocking mechanism is complex and easy to operate incorrectly, and cannot effectively ensure the safety of electrical equipment during operation.
A chain device is designed, including a first chain assembly, a second chain assembly and a third chain assembly. Through the synergy of these components, it is necessary to ensure that the movable box door of the electrical equipment cannot be opened in the closed state, thereby improving the safety of electricity use.
Through the multiple chain structure, the power safety of electrical equipment is improved, the safety hazards caused by irregular operations are reduced, and the safety of the equipment is ensured during operation.
Smart Images
Figure CN222507394U_ABST
Abstract
Description
Technical Field
[0001] Example embodiments of the present disclosure generally relate to the field of power transmission and distribution, and in particular, to an interlocking device for electrical equipment and the electrical equipment. Background Art
[0002] A plug-in box is an electrical device installed on a bus duct for cable tapping or switching. It can draw power from the bus duct and supply power to electrical equipment. With the continuous increase in electrical equipment and power, higher requirements are currently being placed on the safety of plug-in boxes. The plug-in box door interlocking mechanism is a safety design used to prevent electrical equipment from being opened or closed by mistake during operation. This mechanism ensures that the door of the plug-in box is locked when the equipment is running to prevent abnormal or misoperation. Only when the equipment is shut down and in a safe state can the door be opened and the plug-in box be installed or removed, thereby avoiding potential risks to personnel and equipment. However, the interlocking mechanism in the current traditional solution has various problems such as complex operation and easy misoperation. Utility Model Content
[0003] In the first aspect of the present disclosure, a locking device for an electrical device is provided. The locking device comprises: a first locking assembly, arranged between a fixed door and a movable door of the electrical device, and coupled to a handle of the electrical device arranged toward the fixed door, the first locking assembly being suitable for establishing a locking between the handle and the movable door, and comprising: a rotating arm, movably coupled to the fixed door, and suitable for driving the handle to move between a closing position and an opening position during displacement; an interlocking rod, coupled to the rotating arm, suitable for moving between a locking position associated with the closing position and an unlocking position associated with the opening position with the displacement of the rotating arm; and an interlocking hook, coupled to the movable door, suitable for contacting the interlocking rod in the locking position during the period when the handle is in the closing position to limit the opening of the movable door relative to the fixed door.
[0004] In some embodiments, the first interlocking assembly also includes: a pair of rocker arms coupled to the rotating arm and arranged on opposite sides of the handle in a radial direction, the pair of rocker arms being suitable for clamping the handle to drive the handle to move between the closing position and the opening position during the displacement of the rotating arm.
[0005] In some embodiments, the first interlocking component also includes: at least one guide plate coupled to the fixed box door; and at least one guide hole formed on at least one guide plate and suitable for allowing the interlocking rod to pass through to limit the interlocking rod from sliding between the unlocked position and the locked position along the lateral direction from the fixed box door to the movable box door.
[0006] In some embodiments, the interlocking hook is rotationally coupled to the movable door and is adapted to rotate about a rotation axis to clear the interlocking rod in the locked position.
[0007] In some embodiments, the first interlocking component also includes: a pair of limit blocks, respectively coupled to the fixed box door and arranged on both sides of the interlocking hook, the pair of limit blocks are suitable for limiting the rotation angle of the interlocking hook around the rotation axis; and an elastic reset member, arranged between the interlocking hook and the movable box door.
[0008] In some embodiments, the interlocking device also includes: a second interlocking component, suitable for limiting the movement of the handle in the closing direction during the period when the movable door is opened relative to the fixed door, the second interlocking component including: a crossbeam coupled to the inner side of the box body of the electrical equipment; a slide plate movably coupled to the crossbeam; and an elastic member arranged between the crossbeam and the slide plate, and suitable for driving the slide plate to slide in a vertical direction perpendicular to the transverse direction to a limit position during the period when the movable door is opened, so as to limit the interlocking rod from sliding to the locking position, and wherein the slide plate is suitable for being squeezed by the movable door and avoiding the interlocking rod.
[0009] In some embodiments, the second interlocking component also includes: at least one pair of fixing screws, arranged along the extension direction of the crossbeam and suitable for coupling the slide plate to the crossbeam, and wherein the slide plate includes: at least one pair of sliding holes, at least one pair of sliding holes are suitable for accommodating at least one pair of fixing screws, and are formed as waist-shaped holes, and the long axis of the cross-section of the waist-shaped hole perpendicular to the axis is set in the vertical direction.
[0010] In some embodiments, the second interlocking assembly further includes a guide pin disposed between the cross beam and the slide plate and adapted to guide the slide plate to slide in a vertical direction.
[0011] In some embodiments, the interlocking device also includes: a third interlocking component, arranged on the case of the electrical equipment, and suitable for establishing an interlock with the movable case door during the installation of the case and the bracket of the electrical equipment, the third interlocking component includes: a hook, coupled to the case, and suitable for rotating around the installation axis between a disassembly position and an installation position, and including: a first end, suitable for coupling with the mounting hole of the bracket when the case is coupled to the bracket and the hook is in the installation position; and a second end, arranged away from the first end; and a limit plate, coupled to the movable case door, suitable for contacting the limit plate during the closing of the movable case door and fixing the hook in the installation position.
[0012] In some embodiments, the third interlocking assembly further includes: a sleeve coupled to a box of the electrical device and adapted for the bracket to be inserted therein to fix the box to the bracket.
[0013] The first interlocking assembly is arranged between the movable door of the electrical equipment and the handle of the electrical equipment, and is suitable for associating the opening and closing state of the movable door with the opening and closing state of the handle of the electrical equipment, so that the movable door of the electrical equipment cannot be opened relative to the fixed door in the closed state. The second interlocking assembly is arranged on the fixed door, and is coupled to the handle at least through the first interlocking assembly rotating arm and the interlocking rod, so that the interlocking rod cannot move to the locking position during the opening of the movable door, so that the handle cannot complete the closing operation. In this way, the power safety of the electrical equipment is improved and the potential safety hazards caused by the user's improper operation of the electrical equipment are reduced.
[0014] In a second aspect of the present disclosure, an electrical device is provided. The electrical device comprises: a bracket coupled to a busbar; a box body coupled to the bracket; a fixed box door fixedly coupled to the box body; a movable box door rotatably coupled to the box body and adapted to be opened or closed relative to the fixed box door; and the interlocking device provided according to the first aspect of the present disclosure.
[0015] It should be understood that the contents described in this content section are not intended to limit the key features or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:
[0017] Figure 1 shows a schematic diagram of the overall structure of an electrical device according to some embodiments of the present disclosure;
[0018] Figure 2 A schematic diagram of the structure of an interlocking device according to some embodiments of the present disclosure is shown;
[0019] Figure 3 Schematic diagrams showing interlocking devices in different states according to some embodiments of the present disclosure;
[0020] Figure 4 A partial schematic diagram of a first linkage assembly according to some embodiments of the present disclosure is shown;
[0021] Figure 5 A partial schematic diagram showing the first interlocking component in other states according to some embodiments of the present disclosure;
[0022] Figure 6 A partial schematic diagram showing another part of the first linkage assembly according to some embodiments of the present disclosure;
[0023] Figure 7A schematic diagram of a rotating interlocking hook according to some embodiments of the present disclosure is shown;
[0024] Figure 8 Shows schematic diagrams of rotating the interlocking hook at other viewing angles according to some embodiments of the present disclosure;
[0025] Fig. 9 and Fig.10 schematic diagrams showing the second interlocking component in different states according to some embodiments of the present disclosure; and
[0026] Fig.11 A schematic diagram of a third interlocking assembly according to some embodiments of the present disclosure is shown. DETAILED DESCRIPTION
[0027] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.
[0028] It should be noted that the titles of any sections / subsections provided herein are not restrictive. Various embodiments are described throughout this article, and any type of embodiment may be included under any section / subsection. In addition, the embodiments described in any section / subsection may be combined in any manner with any other embodiments described in the same section / subsection and / or different sections / subsections.
[0029] In the description of the embodiments of the present disclosure, the term "including" and similar terms should be understood as open inclusion, that is, "including but not limited to". The term "based on" should be understood as "based at least in part on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment". The term "some embodiments" should be understood as "at least some embodiments". Other explicit and implicit definitions may be included below. The terms "first", "second", etc. may refer to different or the same objects. Other explicit and implicit definitions may be included below.
[0030] As briefly mentioned above, in order to improve the electrical safety of the plug-in box during installation, use, and maintenance, the plug-in box needs to achieve multiple interlocks through a mechanical structure. For example, when the circuit breaker inside the plug-in box is in the closed state, the plug-in box cannot be opened. However, the current interlocking structure has various problems such as relatively single function and high failure rate.
[0031] The embodiments of the present disclosure propose an interlocking device and electrical equipment for electrical equipment to solve or at least partially solve the above-mentioned problems and other potential problems existing in traditional solutions. According to various embodiments of the present disclosure, the first interlocking component is arranged between the movable door of the electrical equipment and the handle of the electrical equipment, and is suitable for associating the open and closed state of the movable door with the open and closed state of the handle of the electrical equipment, so that the movable door of the electrical equipment cannot be opened relative to the fixed door in the closed state. The second interlocking component is arranged on the fixed door, and is coupled to the handle at least through the first interlocking component rotating arm and the interlocking rod, so that the interlocking rod cannot move to the locking position during the opening of the movable door, so that the handle cannot complete the closing operation.
[0032] The third interlocking assembly is arranged between the box of the electrical equipment and the bracket of the electrical equipment. Through the cooperation of the third interlocking assembly and the movable box door, the box cannot be coupled to the bracket during the closing of the movable box door (that is, the box cannot be coupled to the bracket during the closing of the handle) and the box cannot be removed from the bracket during the closing of the movable box door (that is, the box cannot be removed from the bracket during the closing of the handle). Through the first interlocking assembly, the second interlocking assembly, and the third interlocking assembly, the electrical equipment has multiple interlocking capabilities, thereby improving the power safety of the electrical equipment and reducing the safety hazards caused by users' improper operation of the electrical equipment.
[0033] Figure 1 FIG. 1 shows a schematic diagram of the overall structure of an electrical device according to some embodiments of the present disclosure. Figure 1 As shown, the electrical device is installed on the bus duct 1, and includes a bracket 2 coupled to the bus duct 1, a box body 3 coupled to the bracket 2, a fixed box door 31 and a movable box door 32 arranged in the box body 3, and a locking device. The side of the box body 3 facing away from the bus duct 1 is open, and the fixed box door 31 is fixedly coupled to the open side of the box door and partially covers the opening of the box door.
[0034] The movable door 32 is arranged on one side of the fixed door 31 along a transverse direction parallel to the extension direction of the bus duct 1 and is hinged to the box body 3. In this way, the movable door 32 can rotate around the hinge axis to realize the opening or covering of the part of the opening of the box body 3 that is not covered by the fixed door 31, that is, to realize the opening and closing of the box body 3. In some embodiments, the axial direction of the hinge axis of the movable door 32 is arranged perpendicular to the transverse direction and the hinge axis of the movable door 32 is arranged at one end of the movable door 32 away from the fixed door 31 along the transverse direction. In some embodiments, the fixed door 31 and the box body 3 can be fixed by means of welding, clamping, riveting, etc. In some alternative embodiments, the fixed door 31 and the box body 3 can also be connected by fasteners such as bolts and nuts.
[0035] A circuit breaker for controlling the on and off of the circuit in the box 3 is also arranged in the box 3. The circuit breaker includes a handle. The handle can rotate around the axis between the closing position and the opening position. In some embodiments, the axis of the handle can be arranged perpendicular to the operation panel on the user side. In some embodiments, the axis of the handle can also be parallel to the operation panel on the user side. The following will mainly introduce the handle whose axis is perpendicular to the operation panel as an example, but it should be understood that other forms of handles are also allowed, and the present disclosure does not limit this.
[0036] Figure 2 shows a schematic diagram of the interlocking device structure according to some embodiments of the present disclosure, Figure 3 Schematic diagrams of interlocking devices in different states according to some embodiments of the present disclosure are shown. Figure 2 and Figure 3 As shown, the interlocking device includes a first interlocking component 4, which is arranged between the fixed box door 31 and the movable box door 32 and coupled to the handle of the electrical device. The first interlocking component 4 is suitable for establishing an interlock between the handle and the movable box door 32 to interlock the movable box door 32 in the closed position when the handle is in the closing position.
[0037] Figure 4 and Figure 5 Partial schematic diagrams of the first interlocking component in different states according to an embodiment of the present disclosure are respectively shown. Figure 6 FIG. 2 shows a partial schematic diagram of another part of the first interlocking assembly according to an embodiment of the present disclosure. Figures 4 to 6 As shown, specifically, the first interlocking assembly 4 includes a rotating arm 41, an interlocking rod 42 coupled to the rotating arm 41, and an interlocking hook 43 coupled to the movable box door 32. The rotating arm 41 is rotatably coupled to the fixed box door 31 and one end of the rotating arm 41 is coupled to the handle, so that when the rotating arm 41 rotates, the rotating arm 41 can drive the handle to rotate between the closing position and the opening position.
[0038] In some embodiments, the first interlocking assembly 4 also includes an operating handle 48 arranged on the side of the fixed door 31 away from the box body 3. The operating handle 48 passes through the fixed door 31 and is coupled to the rotating arm 41. The operating handle 48 can drive the rotating arm 31 to rotate around the axis.
[0039] In some embodiments, a pair of rocker arms 44 are further arranged on one side of the rotating arm 41 close to the handle, and the pair of rocker arms 44 are arranged on both sides of the handle in the radial direction, so that the pair of rocker arms 44 can clamp the handle and be fixed to the handle. When the rotating arm 41 rotates under the drive of the operating handle 48, the pair of rocker arms 44 can drive the handle to move with the rotating arm 41. In some embodiments, the rocker arm 44 is rotatably coupled to the rotating arm 41, so that during the rotation of the handle around the axis, the pair of rocker arms 44 can be rotated to fit on both sides of the handle, thereby stably driving the rotating arm 41 to move with the handle.
[0040] The interlocking rod 42 is coupled to the rotating arm 41, and is suitable for moving from an unlocking position away from the interlocking hook 43 to a locking position that cooperates with the interlocking hook 43 during the operation of the rotating arm 41. Specifically, when the handle is in the opening state, the rotating arm 41 is in an unlocking state away from the interlocking hook 43, and the movable box door 32 can be opened normally. When the handle is rotated from the opening position to the closing position, the handle drives the rotating arm 41 and further drives the interlocking rod 42 to move, and the interlocking rod 42 moves from the unlocking position to the locking position in contact with the interlocking hook 43. The interlocking rod 42 is inserted between the interlocking hook 43 and the movable box door 32, thereby fixing the movable box door 32 in the closed position. In this way, it can be ensured that the movable box door 32 cannot be opened during the operation of the electrical equipment, thereby improving the power safety of the electrical equipment.
[0041] In some embodiments, at least one guide plate 45 is arranged on the fixed door 31, and a guide hole 451 is provided on the guide plate 45, and the guide hole 451 penetrates the guide plate 45 in the transverse direction. The interlocking rod 42 passes through the guide plate 45, so that the interlocking rod 42 can slide in the transverse direction under the guidance of the guide hole 451. In some embodiments, a waist-shaped hole is provided on the rotating arm 41, and the long axis direction of the cross section of the waist-shaped hole perpendicular to the axis is arranged toward the rotation axis of the rotating arm 41. A connecting pin penetrates through the waist-shaped hole, and the connecting pin is coupled to the interlocking rod 42, so that when the handle is actuated, the rotating arm 41 rotates around the rotation axis driven by the handle, and the inner side wall of the waist-shaped hole abuts against the connecting pin, thereby driving the rotating arm 41 to slide in the transverse direction.
[0042] In some alternative embodiments, the rotating arm 41 and the interlocking rod 42 may also be connected via a mechanism such as a connecting rod, a gear rack or a cam, so that the interlocking rod 42 is driven to move between the locking position and the unlocking position through the rotation of the rotating arm 41.
[0043] In some embodiments, the interlocking rod 42 may also be rotatably coupled to the fixed door 31, and rotate toward the movable door 32 under the drive of the rotating arm 41, and rotate to a locking position between the interlocking hook 43 and the movable door 32. For example, in some embodiments, the interlocking rod 42 and the rotating arm 41 may be connected to each other in the direction of gear meshing, and in some other embodiments, the interlocking rod 42 may also be directly fixedly coupled to the rotating arm 41.
[0044] Figure 7 and Figure 8 Schematic diagram of rotating interlocking hooks according to some embodiments of the present disclosure. Figure 7 and Figure 8As shown, in some embodiments. The interlocking hook 43 is rotatably coupled to the movable box door 32. When professional operation and maintenance personnel need to open the movable box door 32 and check the internal circuit of the box body 3 when the electrical equipment is closed, the operation and maintenance personnel can operate the interlocking hook 43 to rotate and avoid the interlocking rod 42 to achieve unlocking, so that the movable box door 32 can be opened. In some embodiments, the bolt that fixes the interlocking hook 43 is a step bolt, that is, the part of the bolt close to the head is a bare rod section without threads, so that when the interlocking hook 43 is installed on the movable box door 32 by the bolt and nut, the bolt can be rotated to control the interlocking hook 43 to rotate around the axis of the step bolt.
[0045] like Figure 8 As shown, in some embodiments, the first interlocking assembly 4 also includes a pair of limit blocks 46 fixed to the movable box door 32, and the pair of limit blocks 46 are arranged on both sides of the interlocking hook 43, and are suitable for contacting the interlocking hook 43 to limit the rotation angle of the interlocking hook 43, thereby improving the operation accuracy and convenience of the operation and maintenance personnel when rotating the interlocking hook 43. In some embodiments, the first interlocking assembly 4 also includes an elastic reset member 47. The elastic reset member 47 can be an elastic member 53 such as a tension spring, a torsion spring, or a spring. The elastic reset member 47 is suitable for providing an elastic force between the movable box door 32 and the interlocking hook 43, so that the interlocking hook 43 is maintained in a position that can cooperate with the interlocking rod 42 to lock the movable box door 32, thereby improving the reliability of the use of the interlocking hook 43.
[0046] Fig. 9 and Fig.10 Schematic diagrams of the second interlocking component in different states according to some embodiments of the present disclosure are respectively shown, such as Fig. 9 and Fig.10 As shown, combined with Figure 2 and Figure 3In some embodiments, the interlocking device further comprises a second interlocking assembly 5, which comprises a crossbeam 51, a slide plate 52, and an elastic member 53 arranged between the crossbeam 51 and the slide plate 52. The crossbeam 51 is coupled to the inner side of the box body 3 and is arranged at the edge of the fixed box door 31 close to the movable box door 32. The slide plate 52 is arranged on the side of the crossbeam 51 facing the movable box door 32, and the slide plate 52 is suitable for sliding relative to the crossbeam 51 in a vertical direction perpendicular to the transverse direction. In some embodiments, the crossbeam 51 comprises a mounting plate 511, and the elastic member 53 is arranged between the slide plate 52 and the mounting plate 511, and provides elastic force to the slide plate 52, so that the slide plate 52 at least has a tendency to slide in the vertical direction and toward the outside of the box body 3. When the movable box door 32 is opened, the slide plate 52 pops up under the action of the elastic member 53 and reaches the limit position, and the slide plate 52 blocks the moving path of the interlocking rod 42. Thus, the interlocking rod 42 is restricted from moving to the locked position, and the corresponding handle cannot be rotated from the open position to the closed position (i.e., the handle cannot complete the closing operation). When the movable door 32 is closed, the movable door 32 can squeeze the slide plate 52 to make the slide plate 52 slide vertically toward the inside of the box body 3. Thus, the slide plate 52 avoids the moving path of the interlocking rod 42, so that the interlocking rod 42 can slide between the locked position and the unlocked position.
[0047] In some embodiments, the second interlocking assembly 5 further includes at least one pair of fixing screws 54. Accordingly, the slide plate 52 includes at least one pair of sliding holes 521, and the pair of sliding holes 521 are arranged along the extension direction of the cross beam 51, and each sliding hole 521 penetrates the slide plate 52 in the transverse direction. The cross section of the sliding hole 521 perpendicular to the axis is a waist-shaped hole, and the long axis of the waist-shaped hole is arranged in the vertical direction. The fixing screw 54 is penetrated in the sliding hole 521 and coupled with the cross beam 51. The cooperation between the fixing screw 54 and the sliding hole 521 improves the stability of the slide plate 52 when it slides in the vertical direction. And the installation strength of the slide plate 52 and the cross beam 51 is improved.
[0048] In some embodiments, the second interlocking assembly 5 further includes a guide pin 55, which is simultaneously provided on the mounting plate 511 and the slide plate 52, and the guide pin 55 extends in the vertical direction, thereby further guiding the slide plate 52 to slide in the vertical direction relative to the crossbeam 51. In some embodiments, the elastic member 53 may be a compression spring, which is sleeved on the guide pin 55, so that the compression spring can apply elastic force to the slide plate 52 more stably.
[0049] Fig.11 FIG. 2 shows a schematic diagram of a third interlocking component according to some embodiments of the present disclosure. Fig.11 Shown and combined Figure 1In some embodiments, the interlocking device further comprises a third interlocking assembly 6, which is arranged on the box body 3 and comprises a hook 61, which is generally L-shaped as a whole and comprises a first end 611 and a second end 612 that are far away from each other. The hook 61 is rotatably coupled to the box body 3 and the hook 61 is suitable for rotating between the installation position and the removal position. The bracket 2 is provided with a mounting hole 21, and when the box body 3 is coupled to the bracket 2, the hook 61 can be rotated from the removal position to the installation position, so that the first end 611 of the hook 61 can be inserted into the mounting hole 21 of the bracket 2. The third interlocking assembly 6 further comprises a limit plate 62, which is coupled to the movable box door 32, and the limit plate 62 is suitable for contacting the second end 612 of the hook 61 when the movable box door 32 is closed, and the limit plate 62 abuts against the second end 612 of the hook 61, thereby fixing the hook 61 in the installation position.
[0050] In some embodiments, the third interlocking component 6 further includes a sleeve 63, which is coupled to the box body 3, and the bracket 2 can be inserted into the sleeve 63 along the extension direction of the sleeve 63, and the box body 3 is fixed on the bracket 2 through the coupling between the sleeve 63 and the bracket 2. In some embodiments, a clearance hole is also provided on the sleeve 63, and when the bracket 2 is inserted into the sleeve 63 and coupled in place, the clearance hole is aligned with the mounting hole 21, and the first end 611 of the hook 61 can pass through the clearance hole and couple with the mounting hole 21.
[0051] The cooperation between the hook 61 and the limiting plate 62 ensures that the movable door 32 needs to remain in an open state when the box 3 is installed on the bracket 2. At the same time, due to the cooperation between the first interlocking component 4 and the second interlocking component 5, when the movable door 32 is opened, the handle needs to remain in the off position, thereby improving the electrical safety when the box 3 is installed on the bracket 2. On the other hand, when the box 3 is installed, the movable door 32 is in a closed state, and the second end 612 of the hook 61 is abutted and limited by the limiting plate 62 coupled to the movable door 32, so that the hook 61 remains in the installation position, and then the first end 611 of the hook 61 can be inserted into the installation hole 21 of the bracket 2, so that the box 3 can be stably fixed on the bracket 2.
[0052] The above descriptions of various implementations of the present disclosure are exemplary, non-exhaustive, and not limited to the disclosed implementations. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described implementations. The selection of terms used herein is intended to best explain the principles of the implementations, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the various implementations disclosed herein.
Claims
1. A locking device for electrical equipment, characterized in that: include: A first interlocking component (4) is arranged between a fixed door (31) and a movable door (32) of the electrical device and is coupled to a handle of the electrical device arranged toward the fixed door (31). The first interlocking component (4) is suitable for establishing an interlocking between the handle and the movable door (32) and comprises: A rotating arm (41) is movably coupled to the fixed box door (31) and is adapted to drive the handle to move between a closing position and an opening position during displacement; an interlocking rod (42), coupled to the rotating arm (41), adapted to move between a locking position associated with the closing position and an unlocking position associated with the opening position as the rotating arm (41) is displaced; and An interlocking hook (43) is coupled to the movable door (32) and is adapted to contact the interlocking rod (42) at the locking position when the handle is at the closing position to limit the opening of the movable door (32) relative to the fixed door (31).
2. The interlocking device according to claim 1, characterized in that: The first interlocking component (4) further comprises: A pair of rocker arms (44) are coupled to the rotating arm (41) and arranged on opposite sides of the handle in a radial direction. The pair of rocker arms (44) are suitable for clamping the handle to drive the handle to move between a closing position and an opening position during the displacement of the rotating arm (41).
3. The interlocking device according to claim 1, characterized in that: The first interlocking component (4) further comprises: at least one guide plate (45) coupled to the fixed door (31); and At least one guide hole (451) is formed on the at least one guide plate (45) and is suitable for allowing the interlocking rod (42) to pass through so as to limit the interlocking rod (42) from sliding between the unlocking position and the locking position along the transverse direction from the fixed door (31) to the movable door (32).
4. The interlocking device according to claim 1, characterized in that: The interlocking hook (43) is rotatably coupled to the movable door (32) and is adapted to rotate about a rotation axis to avoid the interlocking rod (42) being located at the locking position.
5. The interlocking device according to claim 4, characterized in that: The first interlocking component (4) further comprises: a pair of limit blocks (46), respectively coupled to the fixed door (31) and arranged on both sides of the interlocking hook (43), the pair of limit blocks (46) being suitable for limiting the rotation angle of the interlocking hook (43) around the rotation axis; and An elastic reset member (47) is arranged between the interlocking hook (43) and the movable door (32).
6. The interlocking device according to claim 3, characterized in that: Also includes: The second interlocking component (5) is adapted to restrict the handle from moving in the closing direction during the period when the movable door (32) is opened relative to the fixed door (31), and the second interlocking component (5) comprises: A crossbeam (51) coupled to the inner side of the box (3) of the electrical device; a slide plate (52) movably coupled to the crossbeam (51); and an elastic member (53) arranged between the crossbeam (51) and the slide plate (52), and adapted to drive the slide plate (52) to slide to a limit position in a vertical direction perpendicular to the transverse direction during the opening of the movable door (32), so as to limit the interlocking rod (42) from sliding to a locking position, and The slide plate (52) is adapted to be pressed by the movable door (32) and avoid the interlocking rod (42).
7. The interlocking device according to claim 6, characterized in that: The second interlocking component (5) further comprises: at least one pair of fixing screws (54) arranged along the extension direction of the crossbeam (51) and adapted to couple the slide plate (52) to the crossbeam (51), and The slide plate (52) comprises: at least one pair of sliding holes (521), the at least one pair of sliding holes (521) are suitable for accommodating the at least one pair of fixing screws (54), and are formed as waist-shaped holes, and the long axis of the cross section of the waist-shaped holes perpendicular to the axis is arranged in the vertical direction.
8. The interlocking device according to claim 6, characterized in that: The second interlocking component (5) further comprises: A guide pin (55) is arranged between the cross beam (51) and the slide plate (52), and is suitable for guiding the slide plate (52) to slide along the vertical direction.
9. The interlocking device according to any one of claims 1 to 8, characterized in that: Also includes: A third interlocking assembly (6) is arranged on the box body (3) of the electrical equipment and is suitable for establishing an interlock with the movable box door (32) during the installation of the box body (3) and the bracket (2) of the electrical equipment. The third interlocking assembly (6) comprises: A hook (61) is coupled to the box (3) and is adapted to rotate around the mounting axis between a disassembly position and a mounting position, and comprises: A first end (611) adapted to be coupled to a mounting hole (21) of the bracket (2) when the box (3) is coupled to the bracket (2) and the hook (61) is located in a mounting position; and a second end (612) disposed away from the first end (611); and A limiting plate (62) is coupled to the movable door (32) and is adapted to contact the limiting plate (62) and fix the hook (61) at the installation position during the closing of the movable door (32).
10. The interlocking device according to claim 9, characterized in that: The third interlocking component (6) further comprises: A sleeve (63) is coupled to a box (3) of the electrical device and is suitable for being inserted into the bracket (2) so as to fix the box (3) to the bracket (2).
11. An electrical device, characterized in that: include: A bracket (2), coupled to the busbar; A box (3) coupled to the bracket (2); A fixed box door (31) fixedly coupled to the box body (3); A movable door (32) is rotatably coupled to the box body (3) and is suitable for opening or closing relative to the fixed door (31); as well as An interlocking device according to any one of claims 1 to 10.