Padlock device of dual-power change-over switch

Abstract

The invention discloses a padlock device of a dual-power-supply change-over switch. The padlock device comprises a power supply storage tank, two switch assemblies arranged in the storage tank, a sealing cover structure and a lock cylinder structure, wherein the sealing cover structure and the lock cylinder structure are used for mechanically locking switch gears. The switch assembly is composed of a circuit guide block, a control rod and a slot tube, and an external conductive part is insulated and protected through an insulating clamping cover; the sealing cover structure is composed of a clamping cover frame, a protruding disc and a rotatable sealing cover disc and used for sealing the end of the control rod. The lock cylinder structure is composed of a movable disc, a column disc, a lock rod and an elastic pressing structure, the lock rod can simultaneously penetrate through the groove hole of the insulation clamping cover and is connected with the slot pipe of the control rod in an inserted mode, and mechanical locking of switch gears is achieved. The device is compact in structure, reliable physical locking of the dual-power-supply change-over switch in the overhauling and power failure and transmission processes can be achieved, the electric shock danger and equipment damage caused by misoperation are effectively avoided, and the safety and visual management capacity of an electrical system are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical safety protection, in particular to a padlock device of a dual power transfer switch. BACKGROUND

[0002] The dual power automatic transfer switch is widely used in building, data center, fire protection and industrial power distribution system, which can automatically switch to standby power when the main power fails to ensure continuous power supply of the system. However, the following problems exist in the actual use process: There is a lack of effective mechanical locking means during maintenance, and the existing dual power switch usually relies on electronic control or internal interlocking, but during maintenance, maintenance or power stop and transmission operation, the operator still needs to physically lock the gear of the switch, otherwise there is a risk of electric shock or equipment damage caused by misoperation or misreset. The locking position is single, the adaptability is poor, the indication is not obvious, the safety protection is insufficient, and some devices cannot visually display the locking state after the padlock is hung, which is easy to cause misjudgment.

[0003] In order to solve the above problems, a dual power switch padlock device with simple structure, automatic matching switch position, reliable stability and obvious indication effect is needed. SUMMARY

[0004] (I) Technical problems solved In view of the deficiencies in the prior art, the present application provides a padlock device of a dual power transfer switch, which solves the problems of lack of effective mechanical locking means during maintenance, and the existing dual power switch usually relies on electronic control or internal interlocking, but during maintenance, maintenance or power stop and transmission operation, the operator still needs to physically lock the gear of the switch, otherwise there is a risk of electric shock or equipment damage caused by misoperation or misreset. The locking position is single, the adaptability is poor, the indication is not obvious, the safety protection is insufficient, and some devices cannot visually display the locking state after the padlock is hung, which is easy to cause misjudgment.

[0005] (II) Technical scheme In order to achieve the above purpose, the present application is realized by the following technical scheme: a padlock device of a dual power transfer switch, comprising a power storage tank, two switch assemblies are arranged in the power storage tank, the switch assembly comprises a circuit guide block, a control rod is arranged at the top of the circuit guide block, a slot pipe is arranged at the end of the control rod, a cover structure is detachably connected to the outer side of the two circuit guide blocks, a lock cylinder structure is inserted into the outer side of the cover structure, the cover structure comprises a clamping cover frame, a convex disc is arranged at the middle position of the clamping cover frame, a cover disc is rotatably connected to the outer side of the convex disc, a column groove is formed in the inner side of the convex disc, and a convex ring is arranged in the column groove, a through hole is formed in the inner side of the convex ring.

[0006] As a further preferred mode of the present application, an insulating cover is arranged outside the circuit guide block, and a slot hole is formed in the top of the insulating cover.

[0007] As a further preferred mode of the present application, the lock core structure comprises a movable disc, an insulating pad is arranged at the bottom of the movable disc, a column disc is connected to the bottom of the insulating pad, a lock rod is arranged at the center of the column disc, and the lock rod can be inserted into the slot hole of the insulating cover and the insertion slot tube of the control rod.

[0008] As a further preferred mode of the present application, a spring pressing structure is arranged at the top of the movable disc, the lock rod passes through the column disc at the bottom end of the spring pressing structure, the spring pressing structure comprises a column sleeve, four link rods are equidistantly arranged at the outer side of the column sleeve, an arc-shaped pressing plate is connected to the outer side of the link rod, a pressing rod is connected to the bottom end of the pressing plate, a slot is formed at the corresponding position of the movable disc, a compression spring is arranged in the slot, the bottom end of the pressing rod is connected to the compression spring, a receiving tube is arranged in the column sleeve, the receiving tube is connected to the inner wall of the column sleeve, the lock rod passes through the receiving tube, and a spring is connected to the bottom end of the receiving tube.

[0009] As a further preferred mode of the present application, a pressing cap is arranged at the top of the lock rod, and a pressing disc is arranged at the center position of the lock rod.

[0010] As a further preferred mode of the present application, a fixing structure is arranged at the bottom of the link rod, the fixing structure comprises a protrusion, a rotatable clasp is arranged at the outer side of the protrusion, an arc-shaped protrusion is arranged at the top of the clasp, an insertion rod is arranged at the inner end of the protrusion, and an insertion tube corresponding to the insertion rod is arranged at the top of the link rod.

[0011] As a further preferred mode of the present application, a plurality of heat dissipation fins are arranged on the inner wall of the power supply tank.

[0012] (Three) beneficial effects The present application provides a padlock device of a dual power supply transfer switch. Realize forced mechanical locking and avoid misoperation The insertion slot tube of the lock rod and the control rod realizes rigid insertion, and the positions such as the "common power supply", the "backup power supply" and the "off position" can be forcedly physically locked, so that dangerous operations such as misfeeding and misresetting during maintenance can be avoided.

[0013] Have obvious visual locking indication The cover disc is arranged outside the convex disc, the device in the "closed locking" state can be directly observed, misjudgment of the switch position by the operator can be avoided, and the on-site safety warning effect is improved.

[0014] It has strong adaptability and can be used with various specifications of dual power switches. The insulating cover has a compatible design; simply adjusting the slot position allows it to fit the end structures of control rods from different brands and models, improving versatility.

[0015] The internal spring-loaded structure automatically compensates for the locking gap, improving stability. The spring-loaded structure consisting of the connecting rod, pressure plate, and pressure spring can automatically apply axial preload to the locking rod, making the locking rod tightly inserted into the slot tube, and it is not easy to loosen even if there is vibration or external impact.

[0016] The retaining ring-protrusion fixing structure improves the secondary safety effect. The retaining ring engages the protrusion by rotating, preventing the lock cylinder from being pulled out by abnormal means, which is equivalent to "secondary protection locking" and improves the security level.

[0017] Provides complete insulation protection An insulating cover is fitted over the outside of the circuit conductor block and works in conjunction with the post plate and insulating pad to prevent hands from touching live parts and improve electrical safety during maintenance.

[0018] The heatsink structure enhances the heat dissipation capacity of the internal power storage tank, extending the overall lifespan of the system. It helps the switching components maintain a stable temperature during operation, avoiding component aging and decreased insulation performance due to insufficient heat dissipation. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a front view structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the power storage tank of the present invention; Figure 4 This is a top view of the power storage tank of the present invention; Figure 5 This is a schematic diagram of the lock cylinder structure of the present invention.

[0020] In the diagram: 1. Power storage tank; 2. Circuit guide block; 3. Control rod; 4. Slot tube; 5. Cover frame; 6. Protrusion; 7. Cover plate; 8. Insulating cover; 9. Movable plate; 10. Insulating pad; 11. Column plate; 12. Locking rod; 13. Column sleeve; 14. Connecting rod; 15. Pressure plate; 16. Pressure rod; 17. Spring; 18. Storage tube; 19. Pressure cap; 20. Pressure plate; 21. Protrusion; 22. Snap ring; 23. Insert rod; 24. Insert tube; 25. Heat sink. Detailed Implementation

[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0022] Please refer to Figures 1-5 The embodiment of the present application provides a technical solution: The lock device of the dual power supply change-over switch comprises a power supply storage tank 1, two switch assemblies are arranged in the power supply storage tank 1, the switch assembly comprises a circuit guide block 2, a control rod 3 is arranged at the top of the circuit guide block 2, a slot pipe 4 is arranged at the end of the control rod 3, a cover structure is detachably connected to the outer side of the two circuit guide blocks 2, a lock core structure is inserted into the outer side of the cover structure, the cover structure comprises a clamping cover frame 5, a convex disc 6 is arranged at the middle position of the clamping cover frame 5, a cover disc 7 is rotatably connected to the outer side of the convex disc 6, a column groove is formed in the inside of the convex disc 6, a convex ring is arranged in the column groove, and a through hole is formed in the inner side of the convex ring. The power supply storage tank 1 provides a mounting cavity for the switch assembly and has the functions of fixation, protection and heat dissipation, so that the dual power supply switch structure remains in a stable state. The circuit guide block 2 is used for transmitting the conduction relationship of the switch circuit and is a basic support piece of the control rod. The control rod 3 and the slot pipe 4 are operation pieces that are manually or electrically actuated, and the slot pipe serves as a plug-in part for locking position and is used for cooperating with a lock rod to realize mechanical locking. The cover structure is used for closing the end of the control rod and makes it in a state of “not directly accessible”, and provides a mounting interface for the lock core structure. After the cover disc is rotated, the inside space of the clamping cover frame is closed, the end of the control rod is completely covered, and only the plug-in through hole of the lock core is left; when the lock core structure is inserted, the lock rod passes through the through hole and enters the slot pipe, so that mechanical locking is realized. A reliable closed space is formed to avoid that an operator directly touches the control rod. A standardized lock core interface is provided to facilitate the installation of the padlock. The rotatable cover disc is used for quick opening and closing, and the use convenience is improved.

[0023] An insulating clamping cover 8 is arranged outside the circuit guide block 2, and a slot hole is formed in the top of the insulating clamping cover 8. The insulating clamping cover is arranged outside the circuit guide block, and a slot hole is formed in the top of the insulating clamping cover. The insulating clamping cover has an insulating and isolating effect, and blocks the contact risk between the operator and the circuit guide block. The slot hole is used for allowing the lock rod to pass through and realize the connection with the internal slot pipe. An additional insulating protection layer is provided to improve the safety of the maintenance personnel. A stable lock rod guide channel is formed through the standard slot hole position, and the plug-in accuracy is improved.

[0024] The lock core structure comprises a movable disc 9, the bottom of the movable disc 9 is provided with an insulating pad 10, the bottom of the insulating pad 10 is connected with a column disc 11, the center of the column disc 11 is provided with a lock rod 12, the lock rod 12 can be inserted into the slot hole of the insulating cover 8 and the insertion slot pipe 4 of the control rod 3. The composition of the lock core structure is the movable disc 9, the insulating pad 10, the column disc 11 and the lock rod 12. The lock rod passes through the slot hole of the insulating cover and cooperates with the insertion slot pipe 4. The movable disc 9 is the external operation interface of the lock core, which can be gripped or used as a padlock. The insulating pad 10 isolates the movable disc and the column disc, improving safety. The column disc 11 fixes the position of the lock rod and provides a force surface. The lock rod 12 is the main locking part, which is used to insert the insertion slot pipe of the control rod. When the lock rod is inserted downward, it is supported by the column disc and kept in the vertical direction; after the lock rod enters the insertion slot pipe, the rotation of the control rod is limited, so that the switch cannot change the gear. The layered structure improves the mechanical strength and insulation performance. After the lock rod is inserted, it forms a hard lock, so that the control rod cannot be moved at all. Avoiding misoperation leading to misoperation or misoperation.

[0025] The top of the movable disc 9 is provided with a spring pressing structure, the lock rod 12 passes through the bottom end of the spring pressing structure and penetrates the column disc 11, the spring pressing structure comprises a column sleeve pipe 13, four link rods 14 are equidistantly arranged on the outer side of the column sleeve pipe 13, the outer side of the link rod 14 is connected with an arc-shaped pressing plate 15, the bottom end of the pressing plate 15 is connected with a pressing rod 16, corresponding positions of the movable disc 9 are all provided with a slot, the inside of the slot is provided with a compression spring, the bottom end of the pressing rod 16 is connected with the compression spring, the inside of the column sleeve pipe 13 is provided with a receiving tube 18, the receiving tube 18 is connected with the inner wall of the column sleeve pipe 13, the lock rod 12 penetrates the receiving tube 18, and the bottom end of the receiving tube 18 is connected with a spring 17. Four link rods are evenly distributed along the outer side of the column sleeve pipe, so that the stress is balanced, and the arc-shaped pressing plate corresponds to the slot position of the movable disc. The pressing rod is connected with the pressing plate and acts with the compression spring. The receiving tube is used for containing the lock rod and providing upward reset force at the bottom end. When the lock rod is pressed: the spring inside the receiving tube generates a reverse elastic force, so that the lock rod is kept close to the bottom of the insertion slot pipe. The pressing rod and the compression spring form a transverse compression force, so that the whole lock core is more stable and will not fall off due to vibration. Automatically compensate for assembly errors in the insertion process of the lock rod. Provide continuous pre-pressure to make the locking more stable and reliable. Prevent the lock core from loosening and improve the long-term use reliability.

[0026] The top of the lock rod 12 is provided with a pressing cap 19, and the center position of the lock rod 12 is provided with a pressing disc 20. The pressing cap 19 provides a finger pressing position, improving the convenience of human-computer operation. The pressing disc 20 applies uniform pressure to the lock rod to avoid uneven stress causing deviation. When the operator presses the pressing cap, the pressing disc uniformly distributes the force to the lock rod and the column disc, so that the lock rod is smoothly inserted into the insertion slot pipe. The insertion action is easier and does not require a large force to operate.

[0027] Avoiding the lock rod from being skewed, improving the insertion accuracy, prolonging the service life of the lock core The bottom of the link rod 14 is provided with a fixing structure, which comprises a protrusion 21, the outer side of the protrusion 21 is provided with a rotatable clasp 22, the top of the clasp 22 is provided with an arc-shaped protrusion in the middle, and the inner end of the protrusion is provided with a plug rod 23, and the top of the link rod 14 is provided with a plug pipe 24 corresponding to the plug rod 23. The protrusion is a fixed point for limiting the rotation of the clasp. The clasp can rotate and form a buckling structure with the protrusion. The plug rod and the plug pipe are inserted with each other to form axial locking. The operator rotates the clasp to make the plug rod enter the plug pipe to complete the locking; the protrusion part of the clasp is engaged with the protrusion to form a mechanical anti-dropping structure. A "two-stage locking" is provided to prevent the lock core from being abnormally pulled out. The anti-disassembly ability of the entire padlock device is enhanced. Accidental sliding to cause the lock core to loosen is avoided, and safety is improved.

[0028] The inner wall of the power supply tank 1 is provided with a plurality of cooling fins 25. The circuit guide block and the control rod action can cause a certain heat; the cooling fins increase the air contact area and take away the heat through natural convection. The internal temperature rise is reduced, and the long-term stability of the entire device is improved. The insulation part is prevented from aging due to high temperature, the life of the cover structure and the clamping cover is prolonged, and the reliable operation performance of the double power switch is improved.

[0029] The above shows and describes the basic principles and main features of the present application and the advantages of the present application, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0030] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A padlock device with a dual power supply changeover switch, characterized in that: The device includes a power storage tank (1), which has two switch assemblies inside. Each switch assembly includes a circuit guide block (2), a control rod (3) located at the top of the circuit guide block (2), and a slot tube (4) located at the end of the control rod (3). Both circuit guide blocks (2) are detachably connected to a cover structure. A lock cylinder structure is inserted into the outside of the cover structure. The cover structure includes a cover frame (5). A convex plate (6) is provided at the middle position of the cover frame (5). A cover plate (7) is rotatably connected to the outside of the convex plate (6). A column groove is opened inside the convex plate (6), and a convex ring is provided in the column groove. A through hole is opened in the middle of the inner side of the convex ring.

2. The padlock device for a dual power supply changeover switch according to claim 1, characterized in that: An insulating cover (8) is provided on the outside of the circuit guide block (2), and a slot is provided on the top of the insulating cover (8).

3. The padlock device for a dual power supply transfer switch according to claim 2, characterized in that: The lock cylinder structure includes a movable disc (9), an insulating pad (10) is provided at the bottom of the movable disc (9), a column disc (11) is connected to the bottom of the insulating pad (10), and a locking rod (12) is provided at the center of the column disc (11). The locking rod (12) can be inserted into the slot hole of the insulating cover (8) and the slot tube (4) of the control rod (3).

4. The padlock device for a dual power supply changeover switch according to claim 3, characterized in that: The top of the movable disc (9) is provided with a spring-loaded structure. The locking rod (12) passes through the bottom end of the spring-loaded structure and penetrates the column disc (11). The spring-loaded structure includes a column sleeve (13). Four connecting rods (14) are equidistantly arranged on the outer side of the column sleeve (13). An arc-shaped pressure plate (15) is connected to the outer side of the connecting rod (14). A pressure rod (16) is connected to the bottom end of the pressure plate (15). A slot is opened at the corresponding position of the movable disc (9). A compression spring is provided inside the slot. The bottom end of the pressure rod (16) is connected to the compression spring. A storage tube (18) is provided inside the column sleeve (13). The storage tube (18) is connected to the inner wall of the column sleeve (13). The locking rod (12) passes through the storage tube (18). A spring (17) is connected to the bottom end of the storage tube (18).

5. A padlock device for a dual power supply transfer switch according to claim 4, characterized in that: The top of the locking rod (12) is provided with a pressure cap (19), and a pressure plate (20) is provided at the center of the locking rod (12).

6. A padlock device for a dual power supply changeover switch according to claim 5, characterized in that: A fixing structure is provided at the bottom of the connecting rod (14). The fixing structure includes a protrusion (21). A rotatable retaining ring (22) is provided on the outside of the protrusion (21). An arc-shaped protrusion is provided at the middle of the top of the retaining ring (22), and an insertion rod (23) is provided at the inner end of the protrusion. An insertion tube (24) corresponding to the insertion rod (23) is provided at the top of the connecting rod (14).

7. A padlock device for a dual power supply changeover switch according to claim 6, characterized in that: The inner wall of the power storage tank (1) is provided with several heat sinks (25).

Images