Operating mechanism of isolating switch

Abstract

The utility model relates to an operating mechanism of an isolating switch. Comprising a shell, a mechanism frame, a manual operation shaft, a gear, a rack, a driving shaft, a transmission wheel, a cantilever and two energy storage springs, wherein the transmission wheel is arranged at one end of the driving shaft in a linkage manner and is used for driving a contact system to execute opening and closing actions; the cantilever is arranged on the driving shaft in a linkage manner; the transmission plate is arranged on the driving shaft in a linkage mode and matched with the rack, a transmission shaft matched with the rack is arranged on the transmission plate, a shifting groove matched with the transmission shaft is formed in the rack, the transmission shaft is inserted into the shifting groove in a penetrating mode, and linkage matching of the transmission shaft and the rack is formed. The utility model has the advantages of simple structure, stable and reliable performance, fast opening and closing speed, and convenient assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to a disconnecting switch, concretely relates to an operating mechanism of disconnecting switch. BACKGROUND

[0002] The disconnecting switch is a kind of equipment that isolates the power-off part from the live part, forms an obvious disconnecting point to isolate the fault equipment or carry out power-off maintenance. When electrical equipment is power-off maintained, the equipment is isolated from power supply to form an obvious disconnecting point to avoid safety accidents. The disconnecting switch is widely used in power distribution system and automation system of construction, electric power, petroleum chemical industry and other industries. The disconnecting switch includes a shell, an operating mechanism and a contact system. The structure of the operating mechanism of the existing disconnecting switch is complex, and the assembly is cumbersome, and there are defects such as not in place and slow speed of opening and closing. SUMMARY

[0003] The utility model aims at overcoming the defects of prior art, and provides an operating mechanism of disconnecting switch, which has simple structure, stable and reliable performance, fast opening and closing speed and convenient assembly.

[0004] To achieve the above-mentioned purpose, the utility model adopts an operating mechanism of disconnecting switch, which includes a shell, a mechanism frame arranged in the shell, a manual operation shaft rotatably arranged on the mechanism frame, a gear linked with the manual operation shaft, a rack slidably arranged on the mechanism frame and engaged with the gear, a drive shaft rotatably arranged on the mechanism frame, a transmission wheel linked on one end of the drive shaft and used for driving the contact system to execute opening and closing action, a cantilever linked on the drive shaft, two energy storage springs arranged between the cantilever and the mechanism frame respectively, a transmission plate linked on the drive shaft and matched with the rack, the transmission plate is provided with a transmission shaft matched with the rack, the rack is provided with a push slot matched with the transmission shaft, the transmission shaft is inserted in the push slot, and the transmission shaft and the rack are linked.

[0005] The beneficial effects of the above structure are as follows: the operating mechanism adopts energy storage type structure design, when operating, the manual operation shaft rack, transmission plate drives the drive shaft to act, the drive shaft can realize energy storage and energy release of the energy storage spring through the cantilever, the energy storage spring can accelerate the drive shaft action, the drive shaft drives the contact system to accelerate the opening and closing action, and the opening and closing speed is faster. The operating mechanism adopts gear and rack transmission structure design, and the transmission is more reliable and stable, and the reliability is higher. Therefore, the operating mechanism has the advantages of simple structure, stable and reliable performance, fast opening and closing speed and convenient assembly.

[0006] Particularly, two ends of the cantilever are respectively provided with two guide members, the two energy storage springs are respectively sleeved on the two guide members, the mechanism frame is respectively provided with two spring seats matched with the two guide members, one end of the two guide members is respectively inserted into the positioning slot of the two spring seats, and the two guide members and the two spring seats are in sliding connection, and the two ends of the two energy storage springs abut against the two guide members and the two spring seats.

[0007] Particularly, two connecting shafts are arranged between the two guide members and the cantilever, arc-shaped guide holes are respectively arranged on the two sides of the mechanism frame corresponding to the two connecting shafts, and the two ends of the two connecting shafts are respectively inserted into the arc-shaped guide holes and are in sliding connection with the mechanism frame.

[0008] Particularly, a micro switch matched with the cantilever is arranged on the mechanism frame, the cantilever moves with the driving shaft and triggers the micro switch, and the micro switch is turned on or turned off.

[0009] Particularly, a wire fixing clamp is arranged on the mechanism frame corresponding to the micro switch, and a clamping cavity for clamping the wire is formed between the wire fixing clamp and the mechanism frame.

[0010] Particularly, a lateral manual operation shaft for driving the driving shaft to move is rotatably arranged on one side of the shell, and a manual operation hole exposed outside the shell is arranged at one end of the lateral manual operation shaft.

[0011] Particularly, a clamping shaft is arranged at the other end of the lateral manual operation shaft, a plug-in slot matched with the clamping shaft is arranged on the driving shaft, the clamping shaft is inserted into the plug-in slot, and the driving shaft and the lateral manual operation shaft are in linkage. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a perspective view of an embodiment of the utility model.

[0013] Figure 2 The utility model embodiment exploded view.

[0014] Figure 3 The utility model embodiment internal structure drawing.

[0015] Figure 4 The utility model embodiment energy storage spring and cantilever's assembly drawing. Specific implementation

[0016] As Figures 1-4 The utility model embodiment is an operating mechanism of isolating switch, including casing 10, the mechanism frame 11 of setting in casing 10, the manual operation shaft 12 of rotation setting on the mechanism frame 11, the gear 13 of linkage cooperation with manual operation shaft 12, the rack 14 of sliding setting on the mechanism frame 11 and with gear 13 is engaged, the drive shaft 15 of rotation setting on the mechanism frame 11, the transmission wheel 16 of linkage setting on the one end of drive shaft 15 and for driving contact system to carry out the drive of opening and closing brake action, the cantilever 17 of linkage setting on drive shaft 15, two energy storage springs 18 of setting between cantilever 17 and mechanism frame 11 respectively, the transmission plate 19 of linkage setting on drive shaft 15 and with rack 14 is matched, transmission plate 19 on setting with rack 14 is matched transmission shaft 191, rack 14 on setting with transmission shaft 191 is matched the push slot 141, transmission shaft 191 is inserted in push slot 141, and constitutes transmission shaft 191 with the linkage cooperation of rack 14. The two guide pieces 171 of rotation setting on the two ends of cantilever 17 respectively, the two energy storage springs 18 are respectively sleeved on the two guide pieces 171, the two spring seats 111 of rotation setting with the two guide pieces 171 cooperation on the mechanism frame 11 respectively, the one end of two guide pieces 171 is inserted in the positioning groove of two spring seats 111 respectively, and constitutes the sliding connection cooperation of two guide pieces 171 with two spring seats 111, and two energy storage springs 18 two ends are respectively contacted on two guide pieces 171, two spring seats 111. Energy storage spring is connected on cantilever, mechanism frame through two guide pieces, two spring seats respectively, to facilitate the assembly of the operating mechanism, and can guarantee the working reliability of the operating mechanism. The two connecting shafts 172 between two guide pieces 171 and cantilever 17 are provided, the arc-shaped guide hole 112 is respectively provided on the two sides of the mechanism frame 11 corresponding two connecting shafts 172, the two ends of two connecting shafts 172 are inserted in arc-shaped guide hole 112 respectively, and constitute the sliding connection cooperation of connecting shaft 172 and mechanism frame 11. Connecting shaft sliding setting in the arc-shaped guide hole of mechanism frame, to guarantee that cantilever can reliably act, to improve the working reliability of the operating mechanism.

[0017] As Figure 2 ,3 As shown in Fig. 4, the mechanism frame 11 is provided with a micro switch 20 corresponding to the cantilever 17. The cantilever 17 is driven by the driving shaft 15 and triggers the micro switch 20 to realize the on or off of the micro switch 20. The driving shaft triggers the micro switch through the cantilever, and the micro switch monitors the working position of the cantilever, thereby ensuring the working reliability of the operating mechanism. The mechanism frame 11 is provided with a wire fixing clamp 21 corresponding to the micro switch 20. The wire fixing clamp 21 and the mechanism frame 11 form a clamping cavity 210 for clamping the wire. The wire fixing clamp can fix the wire on the mechanism frame, thereby ensuring that the wiring of the operating mechanism is more neat and beautiful. The shell 10 is provided with a lateral manual operating shaft 22 on one side for driving the driving shaft 15 to work. The lateral manual operating shaft 22 is provided with a manual operating hole 221 exposed outside the shell 10 on one end. The lateral manual operating shaft is provided on the shell for driving the driving shaft to rotate, thereby realizing the purpose of multi-directional operation of the operating mechanism and being more convenient to operate. The lateral manual operating shaft 22 is provided with a clamping shaft 222 on the other end. The driving shaft 15 is provided with a plug-in slot 151 corresponding to the clamping shaft 15. The clamping shaft 222 is inserted into the plug-in slot 151 and forms a linkage with the driving shaft 15 and the lateral manual operating shaft 22. The lateral manual operating shaft and the driving shaft are assembled in a clamping manner, which is convenient for the assembly of the lateral manual operating shaft and the driving shaft and is more efficient.

[0018] The operating mechanism adopts an energy storage structure design. During operation, the manual operating shaft rack and the transmission plate drive the driving shaft to work. The driving shaft can realize the energy storage and release of the energy storage spring through the cantilever. The energy storage spring can accelerate the driving shaft to work. The driving shaft drives the contact system to accelerate the breaking and closing operation. The breaking and closing speed is faster. The operating mechanism adopts a gear and rack transmission structure design, which is more reliable and stable in transmission and has higher reliability. Therefore, the operating mechanism has the advantages of simple structure, stable and reliable performance, fast breaking and closing speed, and convenient assembly.

Claims

1. An operating mechanism for a disconnecting switch, characterized in that: The device includes a housing, a frame housed within the housing, a manually operated shaft rotatably mounted on the frame, a gear engaging with the manually operated shaft, a rack slidably mounted on the frame and meshing with the gear, a drive shaft rotatably mounted on the frame, a transmission wheel mounted on one end of the drive shaft and used to drive the contact system to perform opening and closing actions, a cantilever mounted on the drive shaft, two energy storage springs respectively mounted between the cantilever and the frame, and a transmission plate mounted on the drive shaft and engaging with the rack. The transmission plate has a transmission shaft engaging with the rack, and the rack has a groove engaging with the transmission shaft. The transmission shaft passes through the groove, forming a linkage between the transmission shaft and the rack.

2. The operating mechanism of the disconnecting switch according to claim 1, characterized in that: Two guide members are rotatably mounted on both ends of the cantilever. Two energy storage springs are respectively fitted onto the two guide members. Two spring seats that cooperate with the two guide members are rotatably mounted on the mechanism frame. One end of each of the two guide members is inserted into the positioning groove of the two spring seats, forming a sliding connection between the two guide members and the two spring seats. The two ends of the two energy storage springs abut against the two guide members and the two spring seats respectively.

3. The operating mechanism of the disconnecting switch according to claim 2, characterized in that: Two connecting shafts are provided between the two guide members and the cantilever. Arc-shaped guide holes are provided on both sides of the mechanism frame corresponding to the two connecting shafts. The two ends of the two connecting shafts are respectively inserted into the arc-shaped guide holes, forming a sliding connection between the connecting shafts and the mechanism frame.

4. The operating mechanism of the disconnecting switch according to claim 1 or 2, characterized in that: The mechanism frame is equipped with a micro switch that cooperates with the cantilever. The cantilever moves with the drive shaft and triggers the micro switch, thereby turning the micro switch on or off.

5. The operating mechanism of the disconnecting switch according to claim 4, characterized in that: A wire clamp is provided on the mechanism frame corresponding to the micro switch, and a clamping cavity for holding the wire is formed between the wire clamp and the mechanism frame.

6. The operating mechanism of the disconnecting switch according to claim 1 or 2, characterized in that: A lateral manual operation shaft for driving the drive shaft is rotatably provided on one side of the housing, and a manual operation hole exposed outside the housing is provided on one end of the lateral manual operation shaft.

7. The operating mechanism of the disconnector switch according to claim 6, characterized in that: The other end of the lateral manual operation shaft is provided with a snap-fit ​​shaft, and the drive shaft is provided with a plug groove that mates with the snap-fit ​​shaft. The snap-fit ​​shaft is inserted into the plug groove, and thus forms a linkage between the drive shaft and the lateral manual operation shaft.

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