Two-lock one-key program lock device of switch combination cabinet
By designing a two-lock, one-key program lock device for the switch cabinet, and utilizing mechanism interlocking and door interlocking devices, the problem of misoperation of the switch cabinet under power failure conditions was solved, ensuring equipment safety and operational efficiency.
Patent Information
- Application Number
- CN202422768629.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-11-13
AI Technical Summary
The logic program locks of existing switch cabinets are prone to misoperation in the event of power failure, which may lead to personal injury and equipment operation risks, and mechanical locks are difficult to judge the status.
Design a two-lock, one-key programmable lock device for switch cabinets. Through a mechanism interlocking device and a door interlocking device, a single key is used to realize the logical program operation of the high-voltage cabinet and the transformer cabinet, ensuring that the key can only be used in the appropriate state.
It eliminates misoperation during normal power operation, ensures equipment safety, has a simple structure and high reliability, and improves the operating efficiency and economy of switch cabinets.
Smart Images
Figure CN223679945U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of switchgear combination cabinet, especially relates to a switchgear combination cabinet two-lock one-key program lock device. BACKGROUND
[0002] Since the switchgear combination cabinet is composed of a high-voltage cabinet, a transformer and a low-voltage cabinet, the operation logic program is that the high-voltage cabinet grounding switch can be operated only after the transformer room door is closed, and vice versa, the transformer door can be opened only after the high-voltage cabinet grounding switch is closed. At present, this kind of logic program is realized by electrical or mechanical methods. Although the electrical program lock can be realized more conveniently, it cannot meet the effective operation of the logic program under the condition that the switchgear combination cabinet loses power, and misoperation is likely to occur, which may seriously cause personal injury hazards. The other method is mechanical, which usually realizes the operation of the logic program by installing a padlock on the high-voltage cabinet and the transformer door respectively, but this method is difficult to determine the current state of the switchgear combination cabinet, and if misoperation occurs, it may affect the normal operation or maintenance of the equipment, and seriously affect the normal operation of the regional power grid or cause personal injury hazards. SUMMARY
[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a switchgear combination cabinet two-lock one-key program lock device which is simple in structure and high in reliability.
[0004] To achieve the above-mentioned purpose, the solution adopted by the utility model is as follows:
[0005] The utility model provides a switchgear combination cabinet two-lock one-key program lock device, the switchgear combination cabinet includes a combination cabinet rack and a first cabinet and a second cabinet fixed on the combination cabinet rack, the switchgear combination cabinet two-lock one-key program lock device includes a mechanism interlocking device fixed on the first cabinet door and a door interlocking device fixed on the second cabinet door, wherein the mechanism interlocking device includes a first lock head with an open state and a closed state and a shielding piece for shielding the operation hole of the first cabinet, the key is inserted into the first lock head and the first lock head is rotated, the shielding piece shields the operation hole of the first cabinet, the first lock head is in the closed state, at this time the key can be pulled out, the door interlocking device includes a second lock head with an open state and a closed state, the key is inserted into the second lock head and the second lock head is rotated, if the second cabinet door is not completely closed, the second lock head cannot be rotated, if the second cabinet door is completely closed, the second lock head can be rotated to lock the second door, the second lock head is in the closed state, at this time the key can be pulled out.
[0006] Preferably, the first lock head includes a first lock cylinder and a first lock tongue connected with the first lock cylinder, the first lock tongue can rotate with the first lock cylinder, and the first lock tongue is located on the inner side of the first cabinet door.
[0007] Preferably, a first limiting part is arranged at the end of the first bolt, and when the key is inserted into the first lock cylinder of the first lock head and the first lock cylinder of the first lock head is rotated, the first bolt rotates with the first lock cylinder, and the first limiting part rotates from the horizontal state to the vertical downward state.
[0008] Preferably, the shielding piece comprises a linkage rod, a rotating shaft fixed on the first cabinet door, a shielding part and a second limiting part, the linkage rod can rotate around the rotating shaft, the second limiting part is arranged on one end of the linkage rod and contacts the bottom of the first limiting part of the bolt of the lock head, and the shielding part is arranged on the other end of the linkage rod; when the first limiting part rotates from the horizontal state to the vertical downward state, the first limiting part presses the second limiting part of the shielding piece downward, the shielding part of the shielding piece is raised upward, the shielding part shields the operation hole of the first cabinet, and the first lock head is in the closed state, at which time the key can be pulled out.
[0009] Preferably, a first fixing piece parallel to the first cabinet door is arranged at the position of the first lock head on the inner side of the first cabinet door, a fixed support is arranged on the first fixing piece, and the rotating shaft is fixed on the fixed support; a first fixing part abutting against the back of the linkage rod of the shielding piece is arranged on the fixed support, a first through hole is arranged on the first fixing part, a second through hole is arranged at the corresponding position of the linkage rod of the shielding piece, and the rotating shaft passes through the first through hole and the second through hole, so that the linkage rod of the shielding piece can rotate around the rotating shaft.
[0010] Preferably, the second lock head comprises a second lock cylinder and a second bolt connected with the second lock cylinder, the second bolt can rotate with the second lock cylinder, and the second bolt is located on the inner side of the second cabinet door.
[0011] Preferably, the second lock head further comprises a second fixing piece, the second fixing piece is fixed on the inner side of the second cabinet door, and the second lock cylinder of the second lock head is fixed on the second fixing piece; the second fixing piece comprises a second fixing part and a third fixing part, the second fixing part and the third fixing part are mutually perpendicular folding pages, the second fixing part abuts against the second cabinet door and is fixed on the inner side of the second cabinet door through a first fixed screw hole, the second lock cylinder of the second lock head is fixed on the second fixing part, the third fixing part extends vertically into the second cabinet body, and a second fixed screw hole is arranged at each of the upper end and the lower end of the third fixing part.
[0012] Preferably, a first opening and closing member is further included, the first opening and closing member comprising a fourth fixed part and a first opening and closing part, the fourth fixed part and the first opening and closing part being mutually perpendicular folds, the fourth fixed part being attached to the inner side of the third fixed part of the second fixed member, a waist-shaped hole corresponding to the position of the second fixed screw hole being arranged at the upper end and the lower end of the fourth fixed part, and the first opening and closing member being transversely slidably mounted on the third fixed part of the second fixed member by a screw passing through the second fixed screw hole and the transverse waist-shaped hole.
[0013] Preferably, an elastic assembly is further included, the elastic assembly comprising a third fixed member and an elastic member; the third fixed member comprising a fifth fixed part and a sixth fixed part, the fifth fixed part and the sixth fixed part being mutually perpendicular folds, the fifth fixed part being attached to the outer side of the third fixed part of the second fixed member and being fixed to the outer side of the third fixed part of the second fixed member by a third fixed screw hole; the elastic member being elastically slidably arranged on the sixth fixed part of the third fixed member, the elastic member comprising a top rod and a compression spring sleeved on the top rod, the top rod being slidably vertically arranged on the sixth fixed part of the third fixed member, one end of the top rod being provided with a stop part, one end of the compression spring being abutted against the stop part and the other end being abutted against the sixth fixed part of the third fixed member, and the stop part of the top rod being abutted against the first opening and closing part of the first opening and closing member, so that the first opening and closing member can be elastically moved in the opening and closing direction of the second cabinet door.
[0014] Preferably, a second opening and closing member is arranged on the second cabinet body at a position corresponding to the first opening and closing member, the second opening and closing member comprising a second opening and closing part, and the first opening and closing part of the first opening and closing member being attached to the second opening and closing part of the second opening and closing member when the second cabinet door is completely closed.
[0015] Preferably, a third limiting part is arranged at the end of the second lock tongue, the key is inserted into the second lock cylinder of the second lock head and the second lock cylinder of the second lock head is rotated, the second lock tongue is rotated together with the second lock cylinder, the third limiting part is rotated from the vertically upward state to the horizontal state, the third limiting part in the horizontal state is parallel to and spaced apart from the first opening and closing part of the first opening and closing member; if the second cabinet door is not completely closed, the third limiting part is blocked by the second opening and closing part of the second opening and closing member during the process of being rotated from the vertically upward state to the horizontal state and cannot be rotated; if the second cabinet door is completely closed, the first opening and closing part of the second cabinet door is attached to one side of the second opening and closing part of the second cabinet body, after the third limiting part is rotated from the vertically upward state to the horizontal state, the third limiting part is attached to the other side of the second opening and closing part of the second cabinet body, and the second cabinet door can be locked by rotating the second lock head, the second lock head is in the closed state, and the key can be pulled out at this time.
[0016] Advantages
[0017] The switch combination cabinet two-lock one-key program lock device provided by the utility model can realize the operation of the logic program of two padlocks on the cabinet door of two different function cabinets (for example, high-voltage cabinet and transformer cabinet) by one key, the program operation logic program of the switch combination cabinet is reasonable and effective, the possibility of misoperation is eliminated, and the program lock device is simple in structure, high in stability and reliability, and high in efficiency and economy of the switch combination cabinet program lock. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a layout schematic view of the switch combination cabinet two-lock one-key program lock device on the front of the switch combination cabinet.
[0019] Figure 2 It is a first state (open and loose state) action schematic view of the mechanism interlocking device of the switch combination cabinet two-lock one-key program lock device on the back of the switch combination cabinet.
[0020] Figure 3 It is a second state (closed and locked state) action schematic view of the mechanism interlocking device of the switch combination cabinet two-lock one-key program lock device on the back of the switch combination cabinet.
[0021] Figure 4 It is a side surface three-dimensional structure schematic view of the mechanism interlocking device on the back of the switch cabinet cabinet door in the installed state.
[0022] Figure 5 It is a three-dimensional structure schematic view of the mechanism interlocking device.
[0023] Figure 6 It is a three-dimensional structure schematic view of the mechanism interlocking device in which the shielding piece is removed.
[0024] Figure 7 It is a first state (open and loose state) action schematic view of the door interlocking device of the switch combination cabinet two-lock one-key program lock device.
[0025] Figure 8 It is a second state (closed and locked state) action schematic view of the door interlocking device of the switch combination cabinet two-lock one-key program lock device.
[0026] Figure 9 It is a front surface structure schematic view of the door interlocking device.
[0027] Figure 10 It is a back surface structure schematic view of the door interlocking device.
[0028] Figure 11 It is the structural schematic view of the elastic component of the door interlocking device.
[0029] Figure 12 It is the structural schematic view of the second opening and closing piece of the combined cabinet frame. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0031] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.
[0032] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0033] In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly placed when the product of the present application is used, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.
[0034] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0035] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the terms "arrange", "install", "connect" and "connect" should be understood broadly, for example, it can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0036] To this end, the following scheme is proposed:
[0037] Referring to Figure 1 The utility model provides a switch combination cabinet two lock one key program lock device, install on switch combination cabinet 01, wherein, the switch combination cabinet 01 includes combination cabinet rack 011 and the first cabinet 012 and the second cabinet 013 of fixed on the combination cabinet rack 011, be equipped with the operating hole 012A for mechanism ground closing operation on the first cabinet 012 cabinet door.
[0038] In the switch combination cabinet two lock one key program lock device provided by the utility model, the switch combination cabinet two lock one key program lock device includes mechanism interlocking device 100 fixed on the cabinet door of the first cabinet 012 and door interlocking device 200 fixed on the cabinet door of the second cabinet 013.
[0039] Combining Figure 2 And Figure 3 As shown in the switch combination cabinet two lock one key program lock device provided by the utility model, the mechanism interlocking device 100 includes first lock head 110 with opening state and closing state and shielding piece 120 for shielding the operating hole of the first cabinet, the key is inserted into first lock head 110 and rotates first lock head 110, the shielding piece 120 shields the operating hole 012A of the first cabinet 012, and the first lock head 110 is in the closing state, at this time, the key can be pulled out.
[0040] Specifically, in the mechanism interlocking device 100 of the utility model, the first lock head 110 includes first lock cylinder 111 and first lock tongue 112 connected with first lock cylinder 111, first lock tongue 112 can rotate with first lock cylinder 111, and first lock tongue 112 is located on the inner side of the cabinet door of the first cabinet 012.
[0041] In some embodiments, a first limiting portion 112A is provided at the end of the first lock tongue 112, the key is inserted into the first lock cylinder 111 of the first lock head 110 and the first lock cylinder 111 of the first lock head 110 is rotated, the first lock tongue 112 rotates with the first lock cylinder 111, and the first limiting portion 112A is rotated (as shown in Figure 2 from horizontal state to vertical downward state (as shown inFigure 3 as shown).
[0042] Specifically, in the mechanism interlocking device 100 of the utility model, the shielding piece 120 comprises a linkage rod 121, a rotating shaft 122 fixed on the cabinet door of the first cabinet 012, a shielding part 123 and a second limiting part 124, wherein the linkage rod 121 can rotate around the rotating shaft 122, the second limiting part 124 is arranged on one end of the linkage rod 121 and contacts the bottom of the first limiting part 112A of the first lock tongue 112 of the first lock head 110, and the shielding part 123 is arranged on the other end of the linkage rod 121. Figure 2 When the first limiting part 112A rotates from the horizontal state (as shown in Figure 3 ) to the vertical downward state (as shown in ), the first limiting part 112A presses the second limiting part 124 of the shielding piece 120 downward, the shielding part 123 of the shielding piece 120 is raised upward, and the shielding part 123 shields the operation hole 012A of the first cabinet 012.
[0043] Figure 4 As shown in Figure 5 , Figure 6 and , in the two-lock-one-key program lock device of the switch combination cabinet provided by the utility model, a first fixing piece 130 parallel to the cabinet door of the first cabinet 012 is arranged on the inner side of the cabinet door of the first cabinet 012 at the position of the first lock head 110, the first lock cylinder 111 of the first lock head 110 penetrates the first fixing piece 130 and is connected and fixed by fasteners, a fixed support 140 is arranged on the first fixing piece 130, and the rotating shaft 122 is fixed on the fixed support 140. Further, a first fixing part 141 attached to the back of the linkage rod 121 of the shielding piece 120 is arranged on the fixed support 140, a first perforation 141a is arranged on the first fixing part 141, a second perforation 121a is arranged at the corresponding position of the linkage rod 121 of the shielding piece 120, and the rotating shaft 122 penetrates the first perforation 141a and the second perforation 121a, so that the linkage rod 121 of the shielding piece 120 can rotate around the rotating shaft 122.
[0044] In the two-lock-one-key program lock device of the switch combination cabinet provided by the utility model, when the operation hole 012A of the first cabinet 012 is not shielded, the mechanism can perform, for example, grounding closing operation of a high-voltage cabinet; the key is inserted into the first lock head 110 and the first lock head 110 is rotated, the shielding piece 120 shields the operation hole 012A of the first cabinet 012, and the first lock head 110 is in the closed locked state (as shown in Figure 3 ), at this time the key can be pulled out and the next operation can be performed; when the key is rotated again to rotate the first lock head 110, the shielding piece 120 falls down, the operation hole 012A of the first cabinet 012 is not shielded, and the first lock head 110 is in the open unlocked state (as shown in Figure 2When the key is inserted into the second lock head 210 and the second cabinet 013 door is not completely closed, the key cannot be pulled out.
[0045] In combination Figure 7 And Figure 8 As shown in FIG. 1, the door interlocking device 200 includes a second lock head 210 having an open state and a closed state. When the key is inserted into the second lock head 210 and the second cabinet 013 door is not completely closed, the key cannot be pulled out.
[0046] Further, in the door interlocking device 200 of the utility model, as shown in Figure 9 And Figure 10 As shown in FIG. 1, the second lock head 210 includes a second lock cylinder 211 and a second lock tongue 212 connected with the second lock cylinder 211. The second lock tongue 212 can rotate with the second lock cylinder 211, and the second lock tongue 212 is located on the inner side of the second cabinet 013 door.
[0047] Further, the door interlocking device 200 provided by the utility model further includes a second fixing member 220. The second fixing member 220 is fixed on the inner side of the second cabinet 013 door, and the second lock cylinder 211 of the second lock head 210 is fixed on the second fixing member 220.
[0048] Specifically, in the door interlocking device 200 of the utility model, the second fixing member 220 includes a second fixing part 221 and a third fixing part 222. The second fixing part 221 and the third fixing part 222 are mutually perpendicular folding leaves. The second fixing part 221 is attached to the second cabinet 013 door and is fixed on the inner side of the second cabinet 013 door through a first fixing screw hole 221a. The second lock cylinder 211 of the second lock head 210 is fixed on the second fixing part 221. The third fixing part 222 extends perpendicularly to the inside of the second cabinet 013 door. A second fixing screw hole 222a is arranged on the upper end and the lower end of the third fixing part 222.
[0049] Further, the door interlocking device 200 provided by the utility model further includes a first opening and closing piece 230, the first opening and closing piece 230 includes a fourth fixed part 231 and a first opening and closing part 232, the fourth fixed part 231 and the first opening and closing part 232 are mutually perpendicular folding leaves, the fourth fixed part 231 is attached to the inner side of the third fixed part 222 of the second fixed part 220, and a transverse waist-shaped hole 231a corresponding to the position of the second fixed screw hole 222a is arranged at the upper end and the lower end of the fourth fixed part 231, and the first opening and closing piece 230 can be transversely slidably installed on the third fixed part 222 of the second fixed part 220 by screwing through the second fixed screw hole 222a and the transverse waist-shaped hole 231a.
[0050] Further, in combination with Figure 11 the door interlocking device 200 provided by the utility model further includes an elastic assembly 240, and the elastic assembly 240 includes a third fixed part 241 and an elastic piece 242. Specifically, the third fixed part 241 includes a fifth fixed part 241a and a sixth fixed part 241b, the fifth fixed part 241a and the sixth fixed part 241b are mutually perpendicular folding leaves, the fifth fixed part 241a is attached to the outer side of the third fixed part 222 of the second fixed part 220 and is fixed to the outer side of the third fixed part 222 of the second fixed part 220 through a third fixed screw hole 241c. The elastic piece 242 is elastically and slidably arranged on the sixth fixed part 241b of the third fixed part 241, the elastic piece 242 includes a top rod 242a and a compression spring 242b sleeved on the top rod 242a, the top rod 242a is slidably and vertically arranged on the sixth fixed part 241b of the third fixed part 241, one end of the top rod 242a is provided with a stop part 242c, one end of the compression spring 242b is abutted against the stop part 242c and the other end is abutted against the sixth fixed part 241b of the third fixed part 241, so that the compression spring 242b is compressed between the sixth fixed part 241b of the third fixed part 241 and the stop part 242c of the top rod 242a, and the stop part 242c of the top rod 242a is abutted against the first opening and closing part 232 of the first opening and closing piece 230, so that the first opening and closing piece 230 can be elastically moved in the opening and closing direction of the second cabinet 013 cabinet door.
[0051] In some embodiments, in the switch combination cabinet of the utility model, as Figure 12 shown, a second opening and closing piece 300 is arranged on the second cabinet 013 cabinet body at the corresponding position of the first opening and closing piece 230, the second opening and closing piece 300 includes a second opening and closing part 301, when the second cabinet 013 cabinet door is completely closed, the first opening and closing part 232 of the first opening and closing piece 230 is attached to the second opening and closing part 301 of the second opening and closing piece 300 (as Figure 8 shown).
[0052] In some embodiments, in the door interlocking device 200 of the utility model, as shown in Figure 8 and Figure 9 , a third limiting part 212a is arranged at the end of the second lock tongue 212, the key is inserted into the second lock cylinder 211 of the second lock head 210 and the second lock cylinder 211 of the second lock head 210 is rotated, the second lock tongue 212 is rotated together with the second lock cylinder 211, the third limiting part 212a is rotated from the vertical upward state (as shown in Figure 7 ) to the horizontal state (as shown in Figure 8 ), and the limiting part 212a in the horizontal state is arranged in parallel with and spaced from the first opening and closing part 232 of the first opening and closing member 230. If the second cabinet 013 cabinet door is not completely closed, the third limiting part 212a is blocked by the second opening and closing part 301 of the second opening and closing member 300 during the process of being rotated from the vertical upward state to the horizontal state and cannot be rotated; if the second cabinet 013 cabinet door is completely closed, the first opening and closing part 232 of the first opening and closing member 230 of the second cabinet 013 cabinet door is attached to one side of the second opening and closing part 301 of the second opening and closing member 300 of the second cabinet 013 cabinet body, the third limiting part 212a is rotated (as shown in Figure 7 ) from the vertical upward state to the horizontal state (as shown in Figure 8 ), the third limiting part 212a is attached to the other side of the second opening and closing part 301 of the switch cabinet 01 cabinet body (as shown in Figure 8 ), thereby locking the second cabinet 013 cabinet door, and the second lock head 210 is in the closed state, at this time, the key can be pulled out, and the next operation can be performed.
[0053] In the door interlocking device 200 of the utility model, the elastic assembly 240 is arranged so that the first opening and closing member 230 can be elastically moved in the opening and closing direction of the second cabinet 013 cabinet door, after the second cabinet 013 cabinet door is completely closed, the key is inserted into the lock cylinder 211 of the lock head 210 and the lock cylinder 211 of the lock head 210 is rotated, the lock tongue 212 is rotated together with the lock cylinder 211, the third limiting part 212a is rotated from the vertical upward state to the horizontal state, even if the interval between the third limiting part 212a in the horizontal state and the first opening and closing part 232 of the first opening and closing member 230 is less than the thickness of the second opening and closing part 301 of the second cabinet 013 cabinet body, the first opening and closing member 230 can be elastically moved in the opening and closing direction of the second cabinet 013 cabinet door, so that the third limiting part 212a can lock the second opening and closing part 301 of the second cabinet 013 cabinet body and the first opening and closing part 232 of the first opening and closing member 230 of the second cabinet 013 cabinet door when being rotated to the horizontal state, in this way, the cumulative error of installation is corrected, the installation and transmission of the device are more flexible, and the compression spring 242b in the elastic assembly 240 in the compression state can further strengthen the locking state of the two.
[0054] In the switch combination cabinet two-lock one-key program lock device, each component of the mechanism interlocking device 100 and the door interlocking device 200 can be pre-processed and installed on the first cabinet 012 cabinet door and the second cabinet 013 cabinet door respectively, the installation mode is simple and convenient, and the rapidity, stability and reliability in the on-site debugging process are ensured. Moreover, the connection and fixation between the components can adopt a loose fastener design, so that the rotation of the components is smooth and free from jamming. The overall structure adopts a concealed design, and the internal structure of the mechanism interlocking device cannot be seen from the appearance.
[0055] In the utility model, the first cabinet 012 can be any one of a high-voltage cabinet, a transformer cabinet and a low-voltage cabinet, the second cabinet 013 can also be any one of a high-voltage cabinet, a transformer cabinet and a low-voltage cabinet, the first cabinet 012 and the second cabinet 013 should be cabinet bodies of different types, in the utility model, the first cabinet 012 is taken as a high-voltage cabinet and the second cabinet 013 is taken as a transformer cabinet as an example to illustrate the switch combination cabinet two-lock one-key program lock device and the operation logic program thereof. The operation logic program of the switch combination cabinet two-lock one-key program lock device provided by the utility model is as follows:
[0056] (1) when the mechanism is in other states, after the key is inserted into any lock cylinder of the mechanism interlocking device 100 and the door interlocking device 200, for example, when the mechanism is in the ground closing state, the operation hole 012A on the first cabinet high-voltage cabinet 012 cabinet door is occupied, the first lock head 110 of the mechanism interlocking device 100 is in the open state, at this time, the key cannot be pulled out; for another example, when the door of the second cabinet transformer cabinet 013 is opened, the second lock head 110 of the door interlocking device 200 is in the open state, at this time, the key also cannot be pulled out;
[0057] (2) when the mechanism is not in the ground closing state, the operation hole 012A on the first cabinet high-voltage cabinet 012 cabinet door is vacated, the first lock cylinder 111 of the first lock head 110 is rotated, the shielding piece 120 of the mechanism interlocking device 100 shields the operation hole 012A of the first cabinet high-voltage cabinet 012, the first lock head 110 is in the closed state, at this time, the key can be pulled out, and the next step operation is entered;
[0058] (3) the key pulled out from the mechanism interlocking device 100 is inserted into the second lock cylinder 211 of the second lock head 210 of the door interlocking device 200, the second lock cylinder 211 of the second lock head 210 is rotated, at this time, if the second cabinet transformer cabinet 013 cabinet door is not completely closed, the second lock cylinder 211 cannot be rotated, at this time, if the second cabinet transformer cabinet 013 cabinet door is completely closed, the second lock cylinder 211 can be rotated, so as to lock the second cabinet transformer cabinet 013 cabinet door, the second lock head 210 is in the closed state, at this time, the key is pulled out, and the next step operation is entered;
[0059] (4) the key is inserted into the first lock cylinder 111 of the first lock head 110 of the mechanism interlocking device 100, the first lock cylinder 111 of the first lock head 110 is rotated, the shielding piece 120 of the mechanism interlocking device 100 falls down, at this time, the handle can be inserted to operate the grounding switch to open, when the mechanism is in the grounding open state, the key cannot be rotated, and the key cannot be pulled out, and the program is completed.
[0060] The switch combination cabinet two-lock-one-key program lock device can realize the operation of the logic program of two padlocks on the cabinet doors of two different function cabinets (for example, a high-voltage cabinet and a transformer cabinet) by using one key, the program running logic program of the switch combination cabinet is reasonable and effective, the possibility of misoperation is eliminated, and the program lock device has simple structure, high stability and high reliability, and ensures the high efficiency and economy of the switch combination cabinet program lock.
[0061] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled personnel in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection scope of the utility model.
Claims
1. A two-lock-one-key program lock device for a switchgear combination, said switchgear combination including a combination cabinet frame and a first cabinet and a second cabinet fixed to said combination cabinet frame, characterized by, The switch combination cabinet two-lock one-key program lock device comprises a mechanism interlocking device fixed on the first cabinet door and a door interlocking device fixed on the second cabinet door; wherein the mechanism interlocking device comprises a first lock head having an open state and a closed state and a shielding piece for shielding the operation hole of the first cabinet; when the key is inserted into the first lock head and the first lock head is rotated, the shielding piece shields the operation hole of the first cabinet, the first lock head is in the closed state, and the key can be pulled out at this time; the door interlocking device comprises a second lock head having an open state and a closed state; when the key is inserted into the second lock head and the second lock head is rotated, the second lock head cannot be rotated if the second cabinet door is not completely closed, the second lock head can be rotated to lock the second cabinet door if the second cabinet door is completely closed, the second lock head is in the closed state, and the key can be pulled out at this time.
2. The switchgear combination unit two-lock one-key programmed lock device according to claim 1, characterized in that, The first lock head comprises a first lock cylinder and a first lock tongue connected with the first lock cylinder, the first lock tongue can be rotated together with the first lock cylinder, and the first lock tongue is located on the inner side of the first cabinet door; a first limiting part is arranged on the end of the first lock tongue; when the key is inserted into the first lock cylinder of the first lock head and the first lock cylinder of the first lock head is rotated, the first lock tongue is rotated together with the first lock cylinder, and the first limiting part is rotated from a horizontal state to a vertical downward state.
3. The switchgear combination unit two-lock one-key programmed lock device according to claim 2, characterized in that, The shielding piece comprises a linkage rod, a rotating shaft fixed on the first cabinet door, a shielding part and a second limiting part; the linkage rod can be rotated around the rotating shaft; the second limiting part is arranged on one end of the linkage rod and in contact with the bottom of the first limiting part of the lock tongue of the lock head; the shielding part is arranged on the other end of the linkage rod; when the first limiting part is rotated from the horizontal state to the vertical downward state, the first limiting part presses the second limiting part of the shielding piece downward, the shielding part of the shielding piece is raised upward, the shielding part shields the operation hole of the first cabinet, the first lock head is in the closed state, and the key can be pulled out at this time.
4. The switchgear combination unit two-lock one-key programmed lock device according to claim 3, characterized in that, A first fixing piece parallel to the first cabinet door is arranged on the inner side of the first cabinet door at the position of the first lock head; a fixed support is arranged on the first fixing piece; the rotating shaft is fixed on the fixed support; a first fixing part is arranged on the fixed support and in contact with the back of the linkage rod of the shielding piece; a first perforation is arranged on the first fixing part; a second perforation is arranged at the corresponding position of the linkage rod of the shielding piece; the rotating shaft passes through the first perforation and the second perforation, so that the linkage rod of the shielding piece can be rotated around the rotating shaft.
5. The switchgear combination unit two-lock one-key programmed lock device according to claim 1, characterized in that, The second lock head comprises a second lock cylinder and a second lock tongue connected with the second lock cylinder; the second lock tongue can be rotated together with the second lock cylinder; and the second lock tongue is located on the inner side of the second cabinet door.
6. The switchgear combination unit two-lock one-key programmed lock device according to claim 5, characterized in that, The second fixed part and the third fixed part are mutually perpendicular folds, the second fixed part is attached to the second cabinet door and is fixed to the inner side of the second cabinet door through a first fixed screw hole, the second lock core of the second lock head is fixed to the second fixed part, and the third fixed part extends perpendicularly towards the inside of the second cabinet body, a second fixed screw hole is arranged at the upper end and the lower end of the third fixed part.
7. The switchgear combination unit two-lock one-key programmed lock device according to claim 6, characterized in that, The fourth fixed part and the first opening and closing part are mutually perpendicular folds, the fourth fixed part is attached to the inner side of the third fixed part of the second fixed part, a waist-shaped hole corresponding to the position of the second fixed screw hole is arranged at the upper end and the lower end of the fourth fixed part, and a screw passes through the second fixed screw hole and the waist-shaped hole to horizontally slidably mount the first opening and closing part on the third fixed part of the second fixed part.
8. The switchgear combination unit two-lock one-key programmed lock device according to claim 7, characterized in that, The third fixed part and the elastic part are included in the elastic assembly, the fifth fixed part and the sixth fixed part are mutually perpendicular folds, the fifth fixed part is attached to the outer side of the third fixed part of the second fixed part and is fixed to the outer side of the third fixed part of the second fixed part through a third fixed screw hole, the elastic part is elastically and slidably arranged on the sixth fixed part of the third fixed part, the elastic part includes a top rod and a compression spring sleeved on the top rod, the top rod is slidably and perpendicularly arranged on the sixth fixed part of the third fixed part, one end of the top rod is provided with a stop part, one end of the compression spring is abutted against the stop part and the other end is abutted against the sixth fixed part of the third fixed part, and the stop part of the top rod is abutted against the first opening and closing part of the first opening and closing part, so that the first opening and closing part can be elastically moved in the opening and closing direction of the second cabinet door.
9. The switchgear combination unit two-lock one-key programmed lock device according to claim 8, characterized in that, A second opening and closing part is arranged at the corresponding position of the first opening and closing part on the second cabinet body, when the second cabinet door is completely closed, the first opening and closing part of the first opening and closing part is attached to the second opening and closing part of the second opening and closing part.
10. The switchgear combination unit two-lock one-key programmed lock device according to claim 9, characterized in that, The third limiting part is provided at the end of the second lock tongue. When the key is inserted into the second lock cylinder of the second lock head and the second lock cylinder of the second lock head is rotated, the second lock tongue rotates with the second lock cylinder. The third limiting part rotates from the vertical upward state to the horizontal state. The third limiting part in the horizontal state is parallel to and spaced apart from the first opening and closing part of the first opening and closing member. If the second cabinet door is not completely closed, the third limiting part cannot be rotated in the process of rotating from the vertical upward state to the horizontal state due to being blocked by the second opening and closing part of the second opening and closing member. If the second cabinet door is completely closed, the first opening and closing part of the second cabinet door is attached to one side of the second opening and closing part of the second cabinet body. The third limiting part rotates from the vertical upward state to the horizontal state. The third limiting part is attached to the other side of the second opening and closing part of the combined cabinet rack. The second lock head can be locked to lock the second cabinet door. The second lock head is in the closed state. At this time, the key can be pulled out.