CN212342538U

CN212342538U - Manual operation device with high safety performance of three-station mechanism

Info

Publication number: CN212342538U
Application number: CN202021529509.2U
Authority: CN
Inventors: 廖柱成
Original assignee: Yuyao Huayu Electric Co ltd
Current assignee: Yuyao Huayu Electric Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-01-12
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a three station mechanism high security performance's manual operation device relates to the high tension switchgear field, including the mounting box, one side both ends of mounting box all are provided with manual lid subassembly, the inside fixed plate that is provided with in one side of mounting box, the equal fixedly connected with interlocking coil mounting panel of both ends tip of fixed plate, the outside fixedly connected with interlocking coil of interlocking coil mounting panel, the guide housing has all been inlayed at the both ends of fixed plate, interlocking coil's one end is located one side of guide housing, the equal fixedly connected with micro-gap switch mounting panel in middle part both ends one side of fixed plate, fixed mounting has micro-gap switch on the micro-gap switch mounting panel. The utility model discloses a fixed cover outside on manual lid subassembly is provided with manual lid and clamp plate to through the chain with manual lid and clamp plate, can avoid manual lid to lose.

Description

Manual operation device with high safety performance of three-station mechanism

Technical Field

The utility model relates to a high tension switchgear field, in particular to manual operation device of three station mechanism high security performance.

Background

A three-station mechanism used on a GIS isolating and grounding switch needs to have two operation function requirements of electric operation and manual operation according to the requirements of national standard GB 1985-2014. In order to ensure the safety of the switch and the human body, the operating mechanism needs to adopt safety measures to ensure the self safety of an operator and the reliability of the operation of the switch.

The three-station mechanism used on the GIS isolating and grounding switch is far away from the ground, and the structure is a closed metal body, so that the three-station mechanism is not suitable for direct on-site electric operation on the mechanism. The electric operating mechanism is generally operated remotely or arranged on a safe and convenient control cubicle to be operated on site, and the arrangement can be enough to ensure the safety of an operator. In addition, an auxiliary switch is arranged in the mechanism, and each separation position and each operator are interlocked by using an auxiliary signal point, so that the reliability of the operation of the switch is ensured. The isolation and grounding interlocking of the three-station mechanism is realized through an auxiliary signal point in the mechanism, so that misoperation during electric operation cannot be caused. The three-position mechanism is operated manually, and the safety performance of the mechanism is particularly important for an operator to operate close to the mechanism.

The three-station mechanism is provided with one manual operation opening and two manual operation openings, and most of the three-station mechanisms are provided with the two manual operation openings. The two manual operation ports separate manual operation isolation from grounding, so that the grounding switch is intuitively avoided to be operated due to misoperation of the isolation switch; or the earthing switch is operated by misoperation, namely the isolating switch.

The national standard has the interlocking condition when the mechanism is required to operate, and the grounding switch can not be operated to switch on when the disconnecting switch is operated to switch on; when the grounding switch is operated to switch on, the isolating switch cannot be operated to switch off. Furthermore, the manual operation of the mechanism cannot be realized by an electric operation mechanism, and the interlocking conditions can be met by the prior art. With the maturity of GIS products and the application of products to foreign users, a plurality of new requirements are put forward. If the manual cover needs to have an anti-lost design; the manual cover also meets the protection requirement of IP 55; the mechanism can allow manual operation only when the mechanism meets the requirements; the mechanism is required to insert or extract the manual operating rod at the opening and closing positions, and the manual operating rod cannot be extracted during the opening and closing of the manual operating mechanism or the opening of the manual operating mechanism. If the mechanism meets the new requirements, the operation safety of the mechanism and the switch and the safety of the body of an operator can be ensured. Therefore, it is necessary to provide a high-safety manual operating device for a three-position mechanism to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three station mechanism high security performance's manual operation device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a manual operation device with high safety performance of a three-station mechanism comprises a mounting box, wherein manual cover assemblies are arranged at two ends of one side of the mounting box, a fixing plate is arranged in one side of the mounting box, end parts of two ends of the fixing plate are fixedly connected with interlocking coil mounting plates, interlocking coils are fixedly connected to the outer sides of the interlocking coil mounting plates, guide sleeves are inlaid at two ends of the fixing plate, one end of each interlocking coil is located at one side of each guide sleeve, a micro switch mounting plate is fixedly connected to one side of each middle end of the fixing plate, a micro switch is fixedly mounted on each micro switch mounting plate, a manual shaft is connected to the inner part of each guide sleeve in a penetrating mode, an adjusting plate is arranged on one side of the fixing plate, a closing interlocking adjusting plate is fixedly connected to two ends of the adjusting plate, a separating gate interlocking adjusting, the switching-off interlocking adjusting plate is positioned on the inner side of the switching-on interlocking adjusting plate.

Preferably, a special-shaped groove is formed in one side, close to each other, of the closing interlocking adjusting plate and the opening interlocking adjusting plate, and the special-shaped groove is matched with one end of the manual shaft.

Preferably, the lower extreme of regulating plate has seted up long waist groove, the top fixedly connected with connecting plate of regulating plate, one side that the regulating plate was kept away from to the connecting plate is provided with the rack.

Preferably, one side that the regulating plate was kept away from to the connecting plate is provided with the gear, the gear is connected with the rack toothing, there is the chain bottom of gear through connecting axle swing joint, the one end meshing that the gear was kept away from to the chain is connected with the sprocket.

Preferably, manual lid subassembly is including inlaying the fixed cover on the mounting box, the outside laminating of fixed cover is connected with manual lid, the outside laminating of manual lid is connected with the clamp plate, the outside middle part of manual lid is passed through the chain and is connected with the lateral wall of clamp plate.

Preferably, one side of one end of the pressing plate is fixedly connected with the mounting box through a high-head screw, and the other side of one end of the pressing plate is movably connected with the mounting box through a knurled screw.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a fixed cover outside on manual lid subassembly is provided with manual lid and clamp plate to through the chain with manual lid and clamp plate, can avoid the manual lid to lose, with spare parts such as uide bushing, interlocking coil mounting panel, interlocking coil, micro-gap switch mounting panel, micro-gap switch, ejector pin assembly together, use integrated structural design, improved the compactness of this device;

2. the utility model discloses a be provided with interlocking coil on the fixed plate, interlocking coil's the iron core that moves stretches into in the uide bushing breach under the free state, it inserts disallowed manual operation to block manual operation pole, the backstage sends manual signal, interlocking coil's the iron core actuation that moves, can insert manual operation pole and allow manual operation, when manual operation pole inserts, manual operation pole front end chamfer and ejector pin SR chamfer contact, it removes toward the outside to promote the ejector pin, the ejector pin promotes the compression of micro-gap switch gyro wheel, micro-gap switch cuts off the mechanism internal power supply and provides the signal at manual operation for the backstage, guarantee manual operation safety, it is reliable.

Drawings

Fig. 1 is a schematic structural view of the manual cover assembly of the present invention.

Fig. 2 is a schematic top view of the overall structure of the present invention.

Fig. 3 is a schematic top view of the fixing plate structure of the present invention.

Fig. 4 is a schematic side view of the fixing plate structure of the present invention.

Fig. 5 is a schematic view of the adjusting plate of the present invention.

Fig. 6 is a schematic top view of the gear structure of the present invention.

In the figure: 1. mounting a box; 2. a manual cap assembly; 3. a fixing plate; 4. an interlock coil mounting plate; 5. an interlock coil; 6. a guide sleeve; 7. a microswitch mounting plate; 8. a microswitch; 9. a manual shaft; 10. an adjusting plate; 11. a switching-on interlocking adjusting plate; 12. a switching-off interlocking adjusting plate; 13. a special-shaped groove; 14. a long waist groove; 15. a connecting plate; 16. a rack; 17. a gear; 18. a chain; 19. a sprocket; 20. fixing a sleeve; 21. a manual cover; 22. pressing a plate; 23. a high-head screw; 24. knurling screws; 25. and (4) chain locking.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a manual operation device with high safety performance of a three-station mechanism as shown in figures 1-6, as shown in figures 1 and 2, the manual operation device comprises a mounting box 1, both ends of one side of the mounting box 1 are provided with manual cover components 2, the manual cover components 2 comprise a fixed sleeve 20 inlaid on the mounting box 1, the outer side of the fixed sleeve 20 is connected with a manual cover 21 in a laminating way, the outer side of the manual cover 21 is connected with a pressing plate 22 in a laminating way, the middle part of the outer side of the manual cover 21 is connected with the outer side wall of the pressing plate 22 through a chain 25, one end of the pressing plate 22 is fixedly connected with the mounting box 1 through a head screw 23, the other end of the pressing plate 22 is movably connected with the mounting box 1 through a knurled screw 24, the manual cover components 2 can not be inserted with a manual operation rod, the manual operation rod can be inserted when the manual cover components 2 is opened, two studs are welded on, the pressing plate 22 is sleeved at the smooth circle of the high-head screw 23, and the pressing plate 22 can rotate; the knurled screw 24 is arranged on the upper screw column, the knurled screw 24 is aligned with the gap of the pressing plate 22, after the manual cover 21 is covered, the pressing plate 22 presses the manual cover 21, and the knurled screw 24 is screwed to restrict the manual cover 21 from escaping; the knurled screw 24 is unscrewed, the manual cover 21 can be taken out by rotating the pressing plate 22, in order to prevent the situation that the position where the manual cover 21 is placed is forgotten after the manual cover 21 is opened, an anti-lost design is made, the manual cover 21 is locked on the pressing plate 22 through the lock chain 25, one end of the lock chain 25 is fixed on the manual cover 21, the other end of the lock chain is penetrated in a through hole of the pressing plate 22, the manual cover 21 is opened to manually operate the mechanism, and the manual cover 21 can be hung on the mechanism side.

As shown in fig. 3 and 4, one side of mounting box 1 is inside to be provided with fixed plate 3, the equal fixedly connected with interlocking coil mounting panel 4 of both ends tip of fixed plate 3, interlocking coil 5 is connected to the outside fixed connection of interlocking coil mounting panel 4, uide bushing 6 has all been inlayed at the both ends of fixed plate 3, the one end of interlocking coil 5 is located one side of uide bushing 6, the equal fixedly connected with micro-gap switch mounting panel 7 in middle part both ends one side of fixed plate 3, fixed mounting has micro-gap switch 8 on the micro-gap switch mounting panel 7, the inside through connection of uide bushing 6 has manual axle 9, the one end and the manual regulation pole of manual axle 9.

As shown in fig. 5, an adjusting plate 10 is disposed on one side of a fixing plate 3, a closing interlock adjusting plate 11 is fixedly connected to both ends of the adjusting plate 10, a separating interlock adjusting plate 12 is fixedly connected to both ends of the middle portion of the adjusting plate 10, the separating interlock adjusting plate 12 is disposed inside the closing interlock adjusting plate 11, a middle cylindrical groove of a manual operating lever corresponds to the side of a profiled groove 13 of the interlock adjusting plate, the width of the cylindrical groove is larger than the thickness of the interlock adjusting plate, the diameter of the cylindrical groove is smaller than the distance between both sides of the profiled groove 13, but the diameter of a front end cylindrical of the manual operating lever is larger than the distance between both sides of the profiled groove 13, during the closing or closing process of the mechanism, the diameter of the middle cylindrical groove of the manual operating lever is smaller than the distance between both sides of the profiled groove 13, the manual operating lever cannot be pulled out if the manual operating lever is pulled out halfway in manual operation, because the diameter of the, must reach and divide or close the position and just can take out manual operation pole, closing interlock regulating plate 11 and the one side that separating interlock regulating plate 12 is close to each other have all seted up dysmorphism groove 13, dysmorphism groove 13 and the one end looks adaptation of manual axle 9, and long waist groove 14 has been seted up to the lower extreme of regulating plate 10, can adjust because of the big round hole and the concentric deviation of manual axle 9 on the dysmorphism groove 13 when the mechanism that the error caused targets in place.

As shown in fig. 6, a connecting plate 15 is fixedly connected to the top end of the adjusting plate 10, a rack 16 is arranged on one side of the connecting plate 15 away from the adjusting plate 10, a gear 17 is arranged on one side of the connecting plate 15 away from the adjusting plate 10, the gear 17 is meshed with the rack 16, a chain 18 is movably connected to the bottom end of the gear 17 through a connecting shaft, a chain wheel 19 is meshed with one end of the chain 18 away from the gear 17, and the connecting plate 15 is driven to move linearly left and right through the chain wheel 19, the chain 18, the gear 17 and.

The utility model discloses the theory of operation:

when a background sends a manual signal, the movable iron core of the interlocking coil 5 is attracted and can be inserted into the manual operating rod to allow manual operation, a top rod is sleeved in a round hole on the other side of the cylindrical surface of the guide sleeve 6, the top surface of the round platform of the top rod is abutted to a roller of the microswitch 8, the manual operating rod is inserted, a chamfer at the front end of the manual operating rod is contacted with a SR chamfer of the top rod to push the top rod to move outwards, the top rod pushes the roller of the microswitch 8 to compress, the microswitch 8 cuts off a power supply in a mechanism and provides a signal for the background in manual operation, the safety and reliability of the manual operation are ensured, the manual operating rod is drawn out, a reset spring is arranged in the microswitch 8, the microswitch 8 and the top rod reset are reset under the action of the reset force, and the manual operation is finished, covering a manual cover 21, pressing a pressing plate 22 well, and screwing a knurled screw 24;

when the mechanism is operated manually, the manual operating rod is enabled to shake the manual shaft 9 to rotate clockwise or counterclockwise to drive the mechanism to output an angle and torque, the mechanism outputs the angle, meanwhile, the chain wheel 19, the chain 18, the gear 17 and the rack 16 drive the connecting plate 15 to move linearly leftwards and rightwards, the manual shaft 9 on the left side is operated manually to switch off the switch, the connecting plate 15 moves rightwards to shield the manual shaft 9 on the right side, and the manual operation cannot be carried out on the right side; the right manual shaft 9 is manually operated to switch off the switch, the connecting plate 15 moves leftwards to shield the left manual shaft 9, and the left manual shaft cannot be manually operated; when the brake is in the brake separating position, the manual shaft 9 leaks from both sides, and the manual operation can be performed; the design meets the interlocking condition of the national standard mechanism during manual operation, namely, the grounding switch can not be operated to switch on when the disconnecting switch is operated to switch on; the design of the grounding switch is realized in the prior application, and the design is added on the basis of the prior art, so that the requirements of users on interlocking conditions are more improved, and the grounding switch is more reliable and safer.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a three station mechanism high security performance's manually operation device, includes mounting box (1), its characterized in that: the automatic switch cabinet is characterized in that manual cover assemblies (2) are arranged at two ends of one side of the mounting box (1), a fixing plate (3) is arranged inside one side of the mounting box (1), interlocking coil mounting plates (4) are fixedly connected to the end portions of the two ends of the fixing plate (3), an interlocking coil (5) is fixedly connected to the outer side of each interlocking coil mounting plate (4), guide sleeves (6) are inlaid at two ends of the fixing plate (3), one end of each interlocking coil (5) is located on one side of each guide sleeve (6), a microswitch mounting plate (7) is fixedly connected to one side of each middle end of the fixing plate (3), a microswitch (8) is fixedly mounted on each microswitch mounting plate (7), a manual shaft (9) is connected to the inner portion of each guide sleeve (6), a regulating plate (10) is arranged on one side of the fixing plate (3), and a closing interlocking regulating plate (11) is fixedly connected to two ends of the regulating plate, the double-layer switch-on and switch-off interlocking device is characterized in that two ends of the middle of the adjusting plate (10) are fixedly connected with switch-off interlocking adjusting plates (12), and the switch-off interlocking adjusting plates (12) are located on the inner sides of the switch-on interlocking adjusting plates (11).

2. The high-safety manual operating device of the three-position mechanism as claimed in claim 1, wherein: closing interlock regulating plate (11) and separating brake interlock regulating plate (12) one side that is close to each other all seted up dysmorphism groove (13), dysmorphism groove (13) and the one end looks adaptation of hand shaft (9).

3. The high-safety manual operating device of the three-position mechanism as claimed in claim 2, wherein: long waist groove (14) have been seted up to the lower extreme of regulating plate (10), the top fixedly connected with connecting plate (15) of regulating plate (10), one side that regulating plate (10) were kept away from in connecting plate (15) is provided with rack (16).

4. A three-position mechanism high-safety manual operating device according to claim 3, characterized in that: one side that regulating plate (10) was kept away from in connecting plate (15) is provided with gear (17), gear (17) are connected with rack (16) meshing, there is chain (18) bottom of gear (17) through connecting axle swing joint, the one end meshing that gear (17) were kept away from in chain (18) is connected with sprocket (19).

5. The high-safety manual operating device of the three-position mechanism as claimed in claim 4, wherein: manual lid subassembly (2) is including inlaying fixed cover (20) on mounting box (1), the outside laminating of fixed cover (20) is connected with manual lid (21), the outside laminating of manual lid (21) is connected with clamp plate (22), the outside middle part of manual lid (21) is passed through chain (25) and is connected with the lateral wall of clamp plate (22).

6. The high-safety manual operating device of the three-position mechanism as claimed in claim 5, wherein: one side of one end of the pressing plate (22) is fixedly connected with the mounting box (1) through a high-head screw (23), and the other side of one end of the pressing plate (22) is movably connected with the mounting box (1) through a knurled screw (24).