Isolation padlock mechanism of dual-power automatic change-over switch

Abstract

The utility model discloses an isolation padlock mechanism of a dual power supply automatic change-over switch. The isolation padlock mechanism comprises a housing, a support, a slide block, an operation shaft, a separation blade, a microswitch, a locking fastener and an operation member. The sliding block is movably installed on the shell and can move back and forth between an automatic position and an isolation padlock position, a manual position is arranged between the automatic position and the isolation padlock position, and a communication hole and a padlock hole are formed in the sliding block. When the sliding block is located at the manual position, the operation shaft is correspondingly communicated with the communicating hole, and the operation piece can operate the operation shaft through the communicating hole. The microswitch is fixedly installed in the shell, and when the sliding block is located at the automatic position, the sliding block abuts against the microswitch. When the sliding block is located at the padlock isolation position, the lock catch piece is installed on the padlock hole so as to lock the relative position of the sliding block and the shell. The isolation padlock mechanism of the dual-power-supply automatic change-over switch is simple in structure, has mechanical and electrical double interlocking, and is safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of automatic transfer switch electrical appliances, and in particular to an isolation padlock mechanism for a dual-power automatic transfer switch. Background Technology

[0002] Dual power automatic transfer switch is a common low-voltage electrical appliance, often used in important power distribution applications. It is used to switch between two power sources. When the primary power source fails during power supply, it quickly switches to the backup power source to ensure normal power supply to the load.

[0003] During the use of dual power automatic transfer switches, the entire circuit system needs to be inspected and maintained at regular intervals. At this time, the dual power automatic transfer switch should be placed in the dual isolation position and locked. During the inspection and maintenance period, non-professionals are prohibited from operating it to prevent personal injury.

[0004] Most dual power switch products on the market do not have this maintenance isolation device. Some have isolation function, but their structure is complex and unreliable, and they cannot be stably isolated. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an isolation padlock mechanism for a dual-power automatic transfer switch.

[0006] The technical solution adopted by this utility model to solve its technical problem is: to construct an isolation padlock mechanism for a dual power supply automatic transfer switch, which includes a housing, a bracket, a slider, an operating shaft, a baffle, a micro switch, a locking element, and an operating element;

[0007] The bracket is fixedly installed inside the housing;

[0008] The slider is movably mounted on the housing, and the slider can move back and forth between the automatic position and the isolation padlock position. There is a manual position between the automatic position and the isolation padlock position. The slider is provided with a connecting hole and a padlock hole.

[0009] The operating shaft is rotatably connected to the housing. The operating shaft is used to control the opening and closing of the dual power automatic transfer switch. When the slider is in the manual position, the operating shaft is connected to the connecting hole, and the operating component can operate the operating shaft through the connecting hole.

[0010] The baffle is simultaneously configured to cooperate with the operating shaft and the slider, and the baffle is movably connected to the bracket. The baffle is used to lock the position of the operating shaft or unlock the position of the operating shaft.

[0011] The micro switch is fixedly installed inside the housing. When the slider is in the automatic position, the slider abuts against the micro switch. When the slider is in the isolation padlock position, the locking fastener is installed on the padlock hole to lock the relative position of the slider and the housing.

[0012] In some embodiments, the slider includes a pressure block with an abutment portion, which abuts against the micro switch when the slider is in the automatic position.

[0013] In some embodiments, the baffle includes a base, a blocking portion, and a functioning portion, wherein the base, the blocking portion, and the functioning portion are integrally formed;

[0014] The tablet block has a mating part at one end away from the abutting part, and a limit groove is provided on the operating shaft. When the slider is in the isolation padlock position, the mating part abuts against the blocking part.

[0015] When the slider is in the isolation padlock position, the actuating part engages in the limiting groove to lock the position of the operating shaft. When the slider is in the automatic position or the manual position, the actuating part disengages from the limiting groove to unlock the position of the operating shaft.

[0016] In some embodiments, the bracket is provided with a first guide groove and a second guide groove, and the baffle further includes a guide portion provided on the side wall of the base and a retaining portion provided below the guide portion;

[0017] The guide portion is mounted on the first guide groove, and the retaining portion is mounted on the second guide groove.

[0018] In some embodiments, the isolation padlock mechanism of the dual power automatic transfer switch further includes an elastic element, the first end of which is connected to the guide portion, and the second end of which is connected to the bracket.

[0019] In some embodiments, the elastic element is a tension spring.

[0020] In some embodiments, the isolation padlock mechanism of the dual power automatic transfer switch further includes a connecting member, a transition member, and a switching component;

[0021] The first end of the connecting member is fixedly connected to the lower end of the operating shaft, the transition member has a transition groove, and the second end of the connecting member is movably connected to the transition groove.

[0022] The on / off assembly is connected to the transition member, and the on / off assembly is rotatably connected to the housing.

[0023] In some embodiments, the operating shaft is provided with an operating part corresponding to the operating element.

[0024] In some embodiments, the housing is provided with a through hole, which is corresponding to the padlock hole.

[0025] In some embodiments, the housing is provided with a mounting groove for mounting the slider.

[0026] The present invention offers the following advantages: When the slider is in the automatic position, it abuts against a micro switch, which provides a feedback signal. The dual-power automatic transfer switch can only automatically switch when it receives this feedback signal; otherwise, it fails. When the slider is in the manual or isolation padlock position, the micro switch is in the off state, preventing automatic switching; it can only be manually switched or remain in the isolation padlock state. When the slider is in the manual position, the operating shaft is connected to the connecting hole, allowing the operating component (a handle) to operate the shaft manually, thus driving the dual-power automatic transfer switch and controlling its energization. When the slider is in the isolation padlock position, a locking mechanism is installed on the padlock hole to lock the slider's relative position to the housing, maintaining the dual-power automatic transfer switch in a dual-isolation state. The isolation padlock mechanism of this dual-power automatic transfer switch has a simple structure and features both mechanical and electrical interlocks, ensuring safety and reliability. Attached Figure Description

[0027] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0028] Figure 1 This is a schematic diagram of the external structure of the isolation padlock mechanism of the dual-power automatic transfer switch in some embodiments of this utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of the isolation padlock mechanism of the dual-power automatic transfer switch in some embodiments of this utility model;

[0030] Figure 3 This is a schematic diagram of the internal structure of the isolation padlock mechanism of the dual-power automatic transfer switch in some embodiments of this utility model from another direction.

[0031] Figure 4This is a schematic diagram of the structure of the operating shaft in some embodiments of this utility model;

[0032] Figure 5 This is a schematic diagram of the internal structure of the slider when it is in the automatic position;

[0033] Figure 6 This is a schematic diagram of the external structure when the slider is in the automatic position;

[0034] Figure 7 This is a schematic diagram of the internal structure of the slider when it is in the manual position;

[0035] Figure 8 This is a schematic diagram of the external structure when the slider is in the manual position;

[0036] Figure 9 This is a schematic diagram of the internal structure of the slider when it is in the isolation padlock position;

[0037] Figure 10 This is a schematic diagram of the external structure when the slider is in the isolation padlock position. Detailed Implementation

[0038] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0039] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0040] Please see Figures 1 to 10 This utility model discloses an isolation padlock mechanism for a dual-power automatic transfer switch, which includes a housing 1, a bracket 2, a slider 3, an operating shaft 4, a baffle 5, a micro switch 6, a locking fastener, and an operating component. The bracket 2 is fixedly installed inside the housing 1; the slider 3 is movably installed on the housing 1, and the slider 3 can move back and forth between the automatic position A and the isolation padlock position C. There is a manual position B between the automatic position A and the isolation padlock position C. The slider 3 is provided with a connecting hole 31 and a padlock hole 32; the operating shaft 4 is rotatably connected to the housing 1. The operating shaft 4 is used to control the energization and opening / closing of the dual power automatic transfer switch. When the slider 3 is in the manual position B, the operating shaft 4 is connected to the connecting hole 31, and the operating component can operate the operating shaft 4 through the connecting hole 31; the baffle 5 is simultaneously set with the operating shaft 4 and the slider 3, and the baffle 5 is movably connected to the bracket 2. The baffle 5 is used to lock or unlock the position of the operating shaft 4; the micro switch 6 is fixedly installed inside the housing 1. When the slider 3 is in the automatic position A, the slider 3 abuts against the micro switch 6. When the slider 3 is in the isolation padlock position C, the locking component is installed on the padlock hole 32 to lock the relative position of the slider 3 and the housing 1.

[0041] Understandably, such as Figures 6 to 10As shown, automatic position A, manual position B, and isolation padlock position C are sequentially arranged. The slider 3 has three sliding positions: automatic, manual, and isolation padlock, corresponding to automatic position A, manual position B, and isolation padlock position C, respectively. When slider 3 is in automatic position A, it abuts against microswitch 6. Microswitch 6 provides a feedback signal, and the control system of the dual-power automatic transfer switch can only automatically switch when it receives the feedback signal from microswitch 6; otherwise, it fails. When slider 3 is in manual position B or isolation padlock position C, microswitch 6 is in the off state. Therefore, the dual-power automatic transfer switch cannot switch automatically and can only switch manually or be in the isolation padlock state. When slider 3 is in manual position B, the operating shaft 4 is connected to the connecting hole 31. The operating element, which can be a handle, can be used to manually rotate the operating shaft 4 to drive the dual-power automatic transfer switch, thereby controlling the energization and opening / closing of the dual-power automatic transfer switch. When slider 3 is in the isolation padlock position C, the locking fastener can be installed on the padlock hole 32 to lock the relative position of slider 3 and housing 1, thereby keeping the dual-power automatic transfer switch in the dual-isolation state. The isolation padlock mechanism of this dual-power automatic transfer switch has a simple structure and features both mechanical and electrical interlocks, making it safe and reliable.

[0042] like Figure 2 and Figure 3 As shown, the slider 3 includes a pressing block 33, which has an abutment portion 331. When the slider 3 is in the automatic position A, the abutment portion 331 abuts against the micro switch 6. When the abutment portion 331 abuts against the micro switch 6, the micro switch 6 provides a feedback signal to the control system of the dual power supply automatic transfer switch, enabling the dual power supply automatic transfer switch to switch automatically.

[0043] like Figures 2 to 4 As shown, the baffle 5 includes a base 51, a blocking part 52, and an actuating part 53, which are integrally formed. A mating part 332 is provided at the end of the pressing block 33 away from the abutting part 331, and a limit groove 41 is provided on the operating shaft 4, such as... Figure 9 As shown, when slider 3 is in the isolation padlock position C, the mating part 332 abuts against the blocking part 52. When slider 3 is in the isolation padlock position C, the actuating part 53 engages in the limiting groove 41 to lock the position of the operating shaft 4. Figure 5 and Figure 7As shown, when slider 3 is in automatic position A or manual position B, the actuating part 53 separates from the limiting groove 41 to unlock the position of operating shaft 4. Understandably, when slider 3 slides from manual position B or automatic position A to the isolation padlock position C, the mating part 332 abuts against the blocking part 52, allowing slider 3 to drive the baffle 5 to slide. This causes the actuating part 53 of the baffle 5 to enter the limiting groove 41 of operating shaft 4, thus restricting the rotation of operating shaft 4. At this time, the locking element keeps slider 3 in the isolation padlock position C, thereby keeping the dual-power automatic transfer switch in a dual-isolation state. When the dual-power automatic transfer switch is in the ON state, the position of the limiting groove 41 of operating shaft 4 changes, preventing the actuating part 53 of the baffle 5 from entering the limiting groove 41 of operating shaft 4. That is, when the dual-power automatic transfer switch is in the ON state, slider 3 cannot slide to the isolation padlock position C, providing a mechanical interlock to prevent accidental operation and injury.

[0044] like Figure 3 As shown, the bracket 2 has a first guide groove 21 and a second guide groove 22. The baffle 5 also includes a guide portion 54 provided on the side wall of the base 51 and a retaining portion 55 provided below the guide portion 54. The guide portion 54 is mounted on the first guide groove 21, and the retaining portion 55 is mounted on the second guide groove 22. The first guide groove 21 and the second guide groove 22 are both arranged along the length direction of the bracket 2, so that the baffle 5 can only move along the length direction of the bracket 2. The first guide groove 21 and the second guide groove 22 provide limiting and guiding functions for the movement of the baffle 5.

[0045] Furthermore, the isolation padlock mechanism of the dual-power automatic transfer switch also includes an elastic element 7. The first end of the elastic element 7 is connected to the guide portion 54, and the second end of the elastic element 7 is connected to the bracket 2. The elastic element 7 can be a tension spring. When the slider 3 is in the automatic position A or the manual position B, the baffle 5 is pulled out of the limiting groove 41 of the operating shaft 4 and returns to its initial position under the tension of the elastic element 7. At this time, the operating shaft 4 is released from restriction, and the dual-power automatic transfer switch can switch automatically or manually.

[0046] like Figures 2 to 4 As shown, the isolation padlock mechanism of the dual-power automatic transfer switch also includes a connecting member 81, a transition member 82, and an on / off assembly 83. The first end of the connecting member 81 is fixedly connected to the lower end of the operating shaft 4. The transition member 82 has a transition groove 821, and the second end of the connecting member 81 is movably connected to the transition groove 821. The on / off assembly 83 is connected to the transition member 82 and is rotatably connected to the housing 1. Understandably, when the operating shaft 4 rotates, it drives the connecting member 81 to move. At this time, the connecting member 81 moves in the transition groove 821, thereby driving the transition member 82 and the on / off assembly 83 to move, thus realizing the energization and opening / closing control of the dual-power automatic transfer switch.

[0047] In addition, such as Figure 4 As shown, the operating shaft 4 is provided with an operating part 42 corresponding to the operating component. The operating part 42 can be hexagonal in shape, and the operating component can be a handle.

[0048] like Figure 1 As shown, the housing 1 has a through hole 11, which corresponds to the padlock hole 32. A locking element can be inserted through the through hole 11 and the padlock hole 32 to lock the relative position of the slider 3 and the housing 1. The locking element can be a padlock. The housing 1 has a mounting groove 12 for mounting the slider 3, and the slider 3 can move on the mounting groove 12.

[0049] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. An isolating padlock mechanism for a dual automatic transfer switch, characterized by, Includes housing (1), bracket (2), slider (3), operating shaft (4), baffle (5), micro switch (6), locking element, and operating element; The bracket (2) is fixedly installed inside the housing (1); The slider (3) is movably mounted on the housing (1), and the slider (3) can move back and forth between the automatic position (A) and the isolation padlock position (C). There is a manual position (B) between the automatic position (A) and the isolation padlock position (C). The slider (3) is provided with a connecting hole (31) and a padlock hole (32). The operating shaft (4) is rotatably connected to the housing (1). The operating shaft (4) is used to control the opening and closing of the dual power automatic transfer switch. When the slider (3) is in the manual position (B), the operating shaft (4) is connected to the connecting hole (31). The operating component can operate the operating shaft (4) through the connecting hole (31). The baffle (5) is simultaneously configured to cooperate with the operating shaft (4) and the slider (3), and the baffle (5) is movably connected to the bracket (2). The baffle (5) is used to lock the position of the operating shaft (4) or unlock the position of the operating shaft (4). The micro switch (6) is fixedly installed inside the housing (1). When the slider (3) is in the automatic position (A), the slider (3) abuts against the micro switch (6). When the slider (3) is in the isolation padlock position (C), the locking fastener is installed on the padlock hole (32) to lock the relative position of the slider (3) and the housing (1).

2. The isolating padlock hasp mechanism of a dual mains automatic transfer switch according to claim 1, characterized in that, The slider (3) includes a pressing block (33), and the pressing block (33) is provided with an abutment part (331). When the slider (3) is in the automatic position (A), the abutment part (331) abuts against the micro switch (6).

3. The isolation padlock mechanism of the dual-power automatic transfer switch according to claim 2, characterized in that, The baffle (5) includes a base (51), a blocking part (52), and an active part (53), wherein the base (51), the blocking part (52), and the active part (53) are integrally formed; The tablet block (33) has a mating part (332) at one end away from the abutment part (331), and a limit groove (41) is provided on the operating shaft (4). When the slider (3) is in the isolation padlock position (C), the mating part (332) abuts against the blocking part (52). When the slider (3) is in the isolation padlock position (C), the actuating part (53) engages in the limiting groove (41) to lock the position of the operating shaft (4). When the slider (3) is in the automatic position (A) or the manual position (B), the actuating part (53) separates from the limiting groove (41) to unlock the position of the operating shaft (4).

4. The isolating padlock hasp mechanism of a dual mains automatic transfer switch according to claim 3, characterized in that, The bracket (2) is provided with a first guide groove (21) and a second guide groove (22). The baffle (5) also includes a guide part (54) provided on the side wall of the base (51) and a retaining part (55) provided below the guide part (54). The guide part (54) is installed on the first guide groove (21), and the retaining part (55) is installed on the second guide groove (22).

5. The isolating padlock hasp mechanism of a dual mains automatic transfer switch according to claim 4, characterized in that, The isolation padlock mechanism of the dual power automatic transfer switch also includes an elastic element (7), the first end of which is connected to the guide part (54), and the second end of which is connected to the bracket (2).

6. The isolating padlock hasp mechanism of a dual mains automatic transfer switch according to claim 5, characterized in that, The elastic element (7) is a tension spring.

7. The isolating padlock hasp mechanism of a dual mains automatic transfer switch according to claim 5, characterized in that, The isolation padlock mechanism of the dual power automatic transfer switch also includes a connecting member (81), a transition member (82), and a switching component (83); The first end of the connecting member (81) is fixedly connected to the lower end of the operating shaft (4), the transition member (82) is provided with a transition groove (821), and the second end of the connecting member (81) is movably connected to the transition groove (821). The on / off assembly (83) is connected to the transition member (82), and the on / off assembly (83) is rotatably connected to the housing (1).

8. The isolating padlock hasp mechanism of a dual automatic transfer switch according to claim 1, characterized in that, The operating shaft (4) is provided with an operating part (42) corresponding to the operating component.

9. The isolating padlock hasp mechanism of a dual automatic transfer switch according to claim 1, characterized in that, The housing (1) is provided with a through hole (11), which is correspondingly provided with the padlock hole (32).

10. The isolating padlock hasp mechanism of a dual automatic transfer switch according to claim 1, characterized in that, The housing (1) is provided with a mounting groove (12) for mounting the slider (3).

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