Isolating switch operating handle for transformer substation

Abstract

The utility model discloses an isolating switch operating handle for a transformer substation, and belongs to the technical field of power maintenance and repair. Comprising an operating mechanism, a fixing mechanism, a one-way mechanism and a limiting mechanism, the operating mechanism comprises an operating rod, an adjusting part is installed at the top end of the operating rod, the operating rod is installed on the one-way mechanism through the fixing mechanism, and the limiting mechanism comprises a first connecting sleeve and a second connecting sleeve. First connecting blocks are mounted on the outer sides of the first connecting sleeve and the second connecting sleeve, a rotating shaft is connected between the pair of first connecting blocks through a torsional spring, a limiting sleeve is arranged between the first connecting sleeve and the second connecting sleeve, a second connecting block is mounted on the outer side of the limiting sleeve and mounted on the outer side of the rotating shaft, and an arc-shaped groove is formed in the inner wall of the limiting sleeve; the limiting mechanism further comprises a bent rod, the bent rod drives the one-way mechanism to rotate, a gear is installed on the outer side of the bent rod, and the teeth are meshed with the gear.

Description

Technical Field

[0001] This utility model relates to the field of power maintenance and repair technology, specifically to an operating handle for a disconnect switch in a substation. Background Technology

[0002] When performing maintenance operations at the equipment maintenance site, whether it is overhauling the disconnector or routine troubleshooting, it is often necessary to use the operating handle of the disconnector to open and close the disconnector. When the shift operator is performing switching operations, or when encountering situations where operation is not possible due to electrical problems, the operating handle will also be used to open and close the disconnector.

[0003] For example, the operating handle of a disengaging switch for a substation, as disclosed in Chinese Patent Publication No. CN221596268U, includes a connecting arm, an operating head, a housing, a rotating shaft, a rotating gear, an elastic element, and a limiting plate. The housing can be limited to slide longitudinally on the connecting arm. The rotating shaft is mounted on the housing and can be driven to rotate around its own axis. The operating head is mounted on the lateral front end of the rotating shaft, and the rotating gear is fixed to the lateral rear end of the rotating shaft. The limiting plate is mounted on the housing via the elastic element and has an adjusting end. The adjusting end is pre-pressed onto the rotating gear by the elastic element. The adjusting end has a forward rotation surface and an anti-rotation surface, which are opposite to each other in the rotation direction of the rotating gear. The rotating gear is driven to rotate towards the forward rotation surface and is locked by the anti-rotation surface, so that the rotating gear is driven to rotate in one direction by the limiting plate.

[0004] This technical solution lacks locking capability. Therefore, after the operating handle is connected to the disconnect switch, the operating handle may be accidentally turned, causing the disconnect switch to react accordingly, which in turn affects the maintenance or troubleshooting of the disconnect switch. Utility Model Content

[0005] The purpose of this utility model is to provide an operating handle for a disconnecting switch in a substation, so as to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A disengaging switch operating handle for a substation includes an operating mechanism, a fixing mechanism, a one-way mechanism, and a limiting mechanism. The operating mechanism includes an operating rod with an adjustment part installed at its top. The operating rod is mounted on the one-way mechanism via the fixing mechanism. The limiting mechanism includes a first connecting sleeve and a second connecting sleeve, which are rotatably connected to the one-way mechanism. A first connecting block is installed on the outer side of both the first and second connecting sleeves. A rotating shaft is connected between a pair of first connecting blocks via a torsion spring. A limiting sleeve is provided between the first and second connecting sleeves, and a second connecting block is installed on the outer side of the limiting sleeve. The second connecting block is installed on the outer side of the rotating shaft. An arc-shaped groove is formed on the inner wall of the limiting sleeve, and teeth are provided on the wall surface of the arc-shaped groove. The limiting mechanism also includes a bent rod that drives the one-way mechanism to rotate. A gear is installed on the outer side of the bent rod, and the teeth mesh with the gear.

[0008] Specifically, the rotation of the control lever is controlled by the bent rod. In its natural state, under the influence of the torsion spring, the limit sleeve will deflect to one side. At this time, the teeth and gears mesh, and the gears cannot rotate. Thus, the bent rod cannot rotate, which means that the control lever cannot rotate, ensuring that the control lever will not rotate due to accidental contact.

[0009] Specifically, when the operating lever needs to be rotated, the user holds the first connecting sleeve, the limiting sleeve, and the second connecting sleeve. The limiting sleeve can then deflect to the other side, at which point the teeth and gears separate. The gears can then rotate without contacting the inner ring of the limiting sleeve, which means that the operating lever can rotate, thereby enabling maintenance or troubleshooting of the disconnect switch.

[0010] Furthermore, the one-way mechanism includes a connecting cover, a fixing cover is installed on the bottom surface of the connecting cover, a fixing groove is provided on the inner wall of the first connecting sleeve, a first bearing is installed inside the fixing groove, and the fixing cover is connected to the inner ring of the first bearing.

[0011] Furthermore, the inside of the connecting cover is rotatably connected to a pin via a torsion spring, a pawl is installed on the outside of the pin, a ratchet is provided inside the connecting cover, a connecting shaft is installed at the top of the bent rod, the bent rod is located inside the fixed cover and does not contact the inner wall of the fixed cover, and the connecting shaft and the ratchet are coaxially connected.

[0012] Specifically, the ratchet is suspended inside the connecting cover. When the bent rod rotates counterclockwise, the ratchet and pawl squeeze and drive the entire connecting cover to rotate, thereby rotating the operating lever. When the bent rod rotates clockwise, the ratchet and pawl do not squeeze, and the bent rod does not contact the inner wall of the fixed cover, so the connecting cover does not rotate with the bent rod. When the operating space of the bent rod is small, it is not necessary to rotate it by a certain angle and then remove and reinstall the operating handle.

[0013] Furthermore, the fixing mechanism includes a mounting sleeve, which is installed on the top surface of the connecting cover. The mounting sleeve has a threaded hole on its side, and the operating rod has a fixing hole on its side. A screw is threadedly connected to the inside of the threaded hole, and the screw slides within the fixing hole.

[0014] Furthermore, the inner wall of the mounting sleeve fits into the side of the operating rod.

[0015] Specifically, screws allow the control lever to be disassembled, enabling users to replace it with different models.

[0016] Furthermore, the interior of the bent rod is connected to the bent rod via a second bearing.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the operating handle of the disconnect switch in the substation, in its natural state, the arc groove is engaged by teeth and gears, at which time the gears cannot rotate, thus preventing the bent rod from rotating, thereby ensuring that the operating rod will not rotate due to accidental contact when idle, ensuring safety during maintenance or troubleshooting. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the operating handle of the disconnect switch for substation disclosed in an embodiment of this utility model;

[0019] Figure 2 This is a first exploded structural diagram of the operating handle of the disconnect switch for substation disclosed in an embodiment of the present utility model;

[0020] Figure 3 for Figure 2 Enlarged schematic diagram of structure A in the middle;

[0021] Figure 4 This is a second exploded view of the operating handle of the disconnect switch for substation disclosed in an embodiment of the present utility model;

[0022] Figure 5 This is a third exploded view of the operating handle of the disconnect switch for substation disclosed in an embodiment of this utility model.

[0023] In the diagram: 100, operating mechanism; 1001, operating lever; 1002, adjusting part; 1003, fixing hole; 200, fixing mechanism; 2001, mounting sleeve; 2002, screw; 300, one-way mechanism; 3001, connecting cover; 3002, fixing cover; 3003, ratchet; 3004, pin; 3005, pawl; 400, limiting mechanism; 4001, first connecting sleeve; 4002, bent rod; 4003, connecting shaft; 4004, first bearing; 4005, arc groove; 4006, gear; 4007, second connecting sleeve; 4008, first connecting block; 4009, rotating shaft; 4010, fixing groove; 4011, limiting sleeve; 4012, second connecting block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 5This utility model provides a technical solution: an operating handle for a disengaging switch in a substation, comprising an operating mechanism 100, a fixing mechanism 200, a one-way mechanism 300, and a limiting mechanism 400. The operating mechanism 100 includes an operating rod 1001, with an adjusting part 1002 installed at the top of the operating rod 1001. The operating rod 1001 is mounted on the one-way mechanism 300 via the fixing mechanism 200. The limiting mechanism 400 includes a first connecting sleeve 4001 and a second connecting sleeve 4007. The one-way mechanism 300 and the first connecting sleeve 4001 are rotatably connected. First connecting blocks 4008 are installed on the outer sides of both the first connecting sleeve 4001 and the second connecting sleeve 4007. A rotating shaft 4009 connects a pair of first connecting blocks 4008 via a torsion spring. A limiting sleeve 4011 is provided between the first connecting sleeve 4001 and the second connecting sleeve 4007. A second connecting block 4012 is installed on the outer side of the limiting sleeve 4011. The second connecting block 4012 is installed on the outer side of the rotating shaft 4009. An arc-shaped groove 4005 is opened on the inner wall of the limiting sleeve 4011. The wall surface of the arc-shaped groove 4005 is provided with teeth. The limiting mechanism 400 also includes a bent rod 4002. The bent rod 4002 drives the one-way mechanism 300 to rotate. A gear 4006 is installed on the outer side of the bent rod 4002. The teeth and gear 4006 mesh. Since the rotation of the operating lever 1001 is controlled by the bent rod 4002, in the natural state, under the influence of the torsion spring, the limiting sleeve 4011 will deflect to one side. At this time, the teeth and gear 4006 mesh. At this time, the gear 4006 cannot rotate, and the bent rod 4002 cannot rotate. This means that the operating lever 1001 cannot rotate, ensuring that the operating lever 1001 will not rotate due to accidental contact.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1 - Figure 5This utility model provides a technical solution: a disengaging switch operating handle for a substation, including an operating mechanism 100, a fixing mechanism 200, a one-way mechanism 300, and a limiting mechanism 400. The operating mechanism 100 includes an operating rod 1001, with an adjusting part 1002 installed at the top of the operating rod 1001. The operating rod 1001 is mounted on the one-way mechanism 300 via the fixing mechanism 200. The limiting mechanism 400 includes a first connecting sleeve 4001 and a second connecting sleeve 4007. The one-way mechanism 300 and the first connecting sleeve 4001 are rotatably connected. First connecting blocks 4008 are installed on the outer sides of both the first connecting sleeve 4001 and the second connecting sleeve 4007. A rotating shaft 4009 is connected between a pair of first connecting blocks 4008 via a torsion spring. A limiting sleeve 4011 is provided between the first connecting sleeve 4001 and the second connecting sleeve 4007. A second connecting block 4012 is installed on the outside of the rotating shaft 4009. The inner wall of the limiting sleeve 4011 is provided with an arc-shaped groove 4005, and the wall surface of the arc-shaped groove 4005 is provided with teeth. The limiting mechanism 400 also includes a bent rod 4002, which drives the one-way mechanism 300 to rotate. A gear 4006 is installed on the outside of the bent rod 4002. The teeth and gear 4006 mesh. When it is necessary to rotate the operating lever 1001, the user holds the first connecting sleeve 4001, the limiting sleeve 4011, and the second connecting sleeve 4007. The limiting sleeve 4011 can be deflected to the other side. At this time, the teeth and gear 4006 are separated. The gear 4006 can rotate at this time without contacting the inner ring of the limiting sleeve 4011. This means that the operating lever 1001 can be rotated, thereby performing maintenance or troubleshooting work on the disconnecting switch.

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1 - Figure 5This utility model provides a technical solution: a disengaging switch operating handle for a substation, the one-way mechanism 300 includes a connecting cover 3001, a fixing cover 3002 installed on the bottom surface of the connecting cover 3001, a fixing groove 4010 formed on the inner wall of a first connecting sleeve 4001, a first bearing 4004 installed inside the fixing groove 4010, the fixing cover 3002 and the inner ring of the first bearing 4004 connected, a pin 3004 rotatably connected inside the connecting cover 3001 via a torsion spring, a pawl 3005 installed on the outer side of the pin 3004, a ratchet 3003 provided inside the connecting cover 3001, a connecting shaft 4003 installed at the top of the bent rod 4002, the bent rod 4002 being located at the fixing cover 3001. Inside the 02, and without contacting the inner wall of the fixed cover 3002, the connecting shaft 4003 and the ratchet 3003 are coaxially connected. The ratchet 3003 is suspended inside the connecting cover 3001. When the bent rod 4002 rotates counterclockwise, the ratchet 3003 and the pawl 3005 squeeze and drive the entire connecting cover 3001 to rotate, thereby causing the operating rod 1001 to rotate. When the bent rod 4002 rotates clockwise, the ratchet 3003 does not squeeze with the pawl 3005, and at the same time, the bent rod 4002 does not contact the inner wall of the fixed cover 3002, so that the connecting cover 3001 will not rotate with the bent rod 4002. When the operating space of the bent rod 4002 is small, it is not necessary to rotate it by a certain angle and then remove and reinstall the operating handle.

[0030] Specifically, the working principle of this type of operating handle for a substation disconnect switch is as follows: In use, the operating lever 1001 is connected to the disconnect switch via the adjusting part 1002. When it is necessary to rotate the operating lever 1001, the user holds the first connecting sleeve 4001, the limiting sleeve 4011, and the second connecting sleeve 4007. The limiting sleeve 4011 can be deflected to the other side. At this time, the teeth and gear 4006 are separated, and the gear 4006 can rotate without contacting the inner ring of the limiting sleeve 4011. This means that the operating lever 1001 can be rotated, thereby performing maintenance or troubleshooting work on the disconnect switch.

Claims

1. An operating handle for a disconnecting switch in a substation, characterized in that, The device includes an operating mechanism (100), a fixing mechanism (200), a one-way mechanism (300), and a limiting mechanism (400). The operating mechanism (100) includes an operating lever (1001), the top of which is equipped with an adjusting part (1002). The operating lever (1001) is mounted on the one-way mechanism (300) via the fixing mechanism (200). The limiting mechanism (400) includes a first connecting sleeve (4001) and a second connecting sleeve (4007). The one-way mechanism (300) and the first connecting sleeve (4001) are rotatably connected. A first connecting block (4008) is installed on the outer side of both the first connecting sleeve (4001) and the second connecting sleeve (4007). A pair of first connecting blocks (4008) are connected. 8) A rotating shaft (4009) is connected by a torsion spring. A limiting sleeve (4011) is provided between the first connecting sleeve (4001) and the second connecting sleeve (4007). A second connecting block (4012) is installed on the outside of the limiting sleeve (4011). The second connecting block (4012) is installed on the outside of the rotating shaft (4009). An arc groove (4005) is opened on the inner wall of the limiting sleeve (4011). The wall surface of the arc groove (4005) is provided with teeth. The limiting mechanism (400) also includes a bent rod (4002). The bent rod (4002) drives the one-way mechanism (300) to rotate. A gear (4006) is installed on the outside of the bent rod (4002). The teeth and the gear (4006) mesh.

2. The operating handle for a disengaging switch in a substation according to claim 1, characterized in that, The one-way mechanism (300) includes a connecting cover (3001), a fixing cover (3002) is installed on the bottom surface of the connecting cover (3001), a fixing groove (4010) is opened on the inner wall of the first connecting sleeve (4001), a first bearing (4004) is installed inside the fixing groove (4010), and the fixing cover (3002) and the inner ring of the first bearing (4004) are connected.

3. The operating handle for a disengaging switch in a substation according to claim 2, characterized in that, The connecting cover (3001) is rotatably connected to a pin (3004) via a torsion spring. A pawl (3005) is installed on the outside of the pin (3004). A ratchet (3003) is provided inside the connecting cover (3001). A connecting shaft (4003) is installed at the top of the bent rod (4002). The bent rod (4002) is located inside the fixed cover (3002) and does not contact the inner wall of the fixed cover (3002). The connecting shaft (4003) and the ratchet (3003) are coaxially connected.

4. The operating handle for a disengaging switch in a substation according to claim 3, characterized in that, The fixing mechanism (200) includes a mounting sleeve (2001), which is mounted on the top surface of the connecting cover (3001). The mounting sleeve (2001) has a threaded hole on its side, and the operating rod (1001) has a fixing hole (1003) on its side. A screw (2002) is threadedly connected to the inside of the threaded hole, and the screw (2002) slides in the fixing hole (1003).

5. The operating handle for a disengaging switch in a substation according to claim 4, characterized in that, The inner wall of the mounting sleeve (2001) and the side of the operating rod (1001) are in contact.

6. The operating handle for a disengaging switch in a substation according to claim 5, characterized in that, The interior of the bent rod (4002) is connected to the bent rod (4002) via a second bearing.

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