Box transformer substation operating rod

Abstract

The utility model discloses a box transformer substation operating rod which comprises a connecting pipe, a sleeve fixedly arranged at the head of the connecting pipe, a hook connected with the inner wall of the sleeve in a sliding mode, a push-pull rod arranged in the connecting pipe and a driving device used for driving the push-pull rod to move in the axial direction, the push-pull rod is fixedly connected with the hook, and the push-pull rod is driven by the driving device to move in the axial direction. And the hook extends out of or retracts into the sleeve. After the operation ring of the box-type transformer is hooked by the movable hook and the fixed hook, the operation ring is pulled into the sleeve together, the movable hook and the fixed hook are closed, and the position of the operation ring is locked under the matching of the ratchet strip and the pawl, so that the unhooking phenomenon is avoided, the normal operation is ensured, and the operation efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission and transformation maintenance tools, in particular to a box-type transformer operating lever. Background Art

[0002] The box-type transformer is a common power equipment, and an operating rod is required for its opening and closing. The current operating rod is an insulating rod, and a hook or sleeve is installed on the head of the insulating rod. The hook is hung on the operating ring of the box-type transformer or the sleeve is put outside the operating ring of the box-type transformer, and then the insulating rod is rotated to realize the opening and closing operation of the box-type transformer.

[0003] In actual operation, when the insulating rod rotates, the hook or sleeve is easy to separate from the operating ring. In order to ensure a safe distance, the insulating rod is very long, so it takes time to connect with the operating ring. Once separation occurs, it will extend the operation time, reduce the operation efficiency, and increase the operation risk. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a box-type transformer operating rod, which is used to solve the problem that the current operating rod is easily separated from the operating ring of the box-type transformer when rotating, causing a decoupling phenomenon and reducing the operating efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A box-type transformer operating rod comprises a connecting tube, a sleeve fixedly arranged at the head of the connecting tube, a hook slidably connected to the inner wall of the sleeve, a push-pull rod arranged in the connecting tube, and a driving device for driving the push-pull rod to move axially. The push-pull rod is fixedly connected to the hook, and the hook extends out of or retracts into the sleeve under the drive of the driving device.

[0007] Furthermore, a quick-operating connector is fixedly connected to the tail of the connecting pipe.

[0008] Furthermore, the driving device comprises a sliding sleeve sleeved outside the connecting pipe, the sliding sleeve is slidingly connected to the connecting pipe, and the sliding sleeve is drivingly connected to the push-pull rod.

[0009] Furthermore, a ratchet is provided between the sliding sleeve and the connecting tube, the ratchet is in the same direction as the connecting tube, the ratchet is fixedly connected to the connecting tube, a pawl is rotatably connected to the sliding sleeve, and the pawl is provided with a first torsion spring for making the head of the pawl rest against the ratchet teeth of the ratchet; when the pawl cooperates with the ratchet, the sliding sleeve moves in one direction, and the unidirectional movement direction is the direction away from the hook.

[0010] Furthermore, the sliding sleeve is elastically connected to a button on the side of the ratchet near the hook, the inner end of the button is a claw, the end of the ratchet near the hook is provided with a second slide groove, the ratchet is provided with a first slide groove on the side of the second slide groove away from the hook, the first slide groove is connected to the second slide groove, the depth of the first slide groove is greater than the depth of the second slide groove, after pressing the button, the sliding sleeve is pushed in the direction close to the hook, and the hook extends out of the sleeve.

[0011] Furthermore, the hook includes a fixed hook and a movable hook, the middle part of the fixed hook and the tail part of the movable hook are rotatably connected, the fixed hook is fixedly connected to the push-pull rod, the fixed hook and the movable hook are both slidably matched with the sleeve, and the fixed hook is provided with a second torsion spring for opening the movable hook. After the fixed hook extends out of the sleeve, the movable hook opens, and after the fixed hook and the movable hook retract into the sleeve, the fixed hook and the movable hook close to form a closed ring.

[0012] Furthermore, the connecting pipe is provided with a notch which is consistent with its axial direction, and a locking block which is slidably matched with the connecting pipe is provided in the notch, and the sliding sleeve and the push-pull rod are both fixedly connected to the locking block.

[0013] Furthermore, the push-pull rod and the connecting tube are clearance-matched, a protective tube sleeved outside the push-pull rod is provided between the push-pull rod and the connecting tube, the protective tube is fixedly connected to the push-pull rod, and the protective tube is slidingly matched with the connecting tube.

[0014] The positive effects of the utility model are:

[0015] 1. The utility model is provided with a movable hook, a fixed hook, a push-pull rod, a connecting pipe, a sleeve, a sliding sleeve, a ratchet and a pawl. After the movable hook and the fixed hook hook the operating ring of the box-type transformer, the operating ring is pulled into the sleeve together, the movable hook and the fixed hook are closed, and the position of the operating ring is locked with the cooperation of the ratchet and the pawl, so that the unhooking phenomenon will not occur, thereby ensuring the normal operation and ensuring the working efficiency.

[0016] 2. The tail of the connecting pipe is fixedly connected with a quick-operating joint, which can be connected to the quick-operating joint through an electric wrench to drive the connecting pipe to rotate, thereby greatly improving the working efficiency.

[0017] 3. A button is provided on the sliding sleeve, and a first sliding groove and a second sliding groove are provided on the ratchet bar, forming a safety measure to prevent the movable hook and the fixed hook from accidentally extending out of the sleeve, thereby causing decoupling and affecting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model when the movable hook is opened;

[0019] Figure 2It is a schematic diagram of the utility model after being connected with the operating ring of the box-type transformer;

[0020] Figure 3 yes Figure 1 Enlarged view of the middle part;

[0021] Figure 4 It is a three-dimensional image of the button;

[0022] Figure 5 It is a stereogram of the spinous stripes;

[0023] In the figure:

[0024] 1. Movable hook; 2. Sleeve; 3. Connecting tube; 4. Push-pull rod; 5. Protective tube; 6. Button; 7. Spring; 8. Ratchet; 9. First torsion spring; 10. Sliding sleeve; 11. Ratchet strip; 12. Anti-slip sleeve; 13. Quick-operating joint; 14. First sliding groove; 15. Notch; 16. Second sliding groove; 17. Locking block; 18. Fixed hook; 19. Operating ring; 20. Operating lever; 21. Claw. DETAILED DESCRIPTION

[0025] Example 1

[0026] like Figures 1 to 3 As shown, a box transformer operating rod comprises a vertical connecting tube 3, a vertical sleeve 2 fixedly arranged at the head of the connecting tube 3, a hook slidably connected to the inner wall of the sleeve 2, a vertical push-pull rod 4 arranged in the connecting tube 3, and a driving device for driving the push-pull rod 4 to move axially up and down. The push-pull rod 4 is fixedly connected to the hook, and driven by the driving device, the hook extends out of or retracts into the sleeve 2.

[0027] The driving device comprises a sliding sleeve 10 sleeved on the outside of the connecting tube 3, the sliding sleeve 10 is slidably connected with the connecting tube 3, the right side wall of the connecting tube 3 is provided with a long strip notch 15 consistent with its axial direction, the notch 15 is provided with a T-shaped locking block 17 that is slidably matched with the connecting tube 3, and the sliding sleeve 10 and the push-pull rod 4 are both fixedly connected with the locking block 17. The lower part of the connecting tube 3 is provided with an anti-slip sleeve 12 for anti-slip and hand-holding, and the connecting tube 3, the push-pull rod 4, and the sliding sleeve 10 are all made of insulating materials.

[0028] A ratchet 11 is provided between the sliding sleeve 10 and the connecting tube 3. The ratchet 11 is in the same direction as the connecting tube 3. The ratchet 11 is fixedly connected to the left side wall of the connecting tube 3. A pawl 8 is rotatably connected to the sliding sleeve 10. The head of the pawl 8 faces upward. A first torsion spring 9 is provided on the pawl 8. The two ends of the first torsion spring 9 respectively abut against the inner side of the pawl 8 and the sliding sleeve 10. Under the action of the first torsion spring 9, the head of the pawl 8 abuts against the ratchet teeth of the ratchet 11.

[0029] The upper side of the ratchet teeth of the ratchet bar 11 is an inclined surface, and the lower side is perpendicular to the ratchet bar 11 , so when the pawl 8 cooperates with the ratchet bar 11 , the sliding sleeve 10 moves in one direction, and the one-way moving direction is downward.

[0030] The hook includes a fixed hook 18 and a movable hook 1, the middle part of the fixed hook 18 is rotatably connected to the tail of the movable hook 1, the fixed hook 18 is fixedly connected to the push-pull rod 4, the fixed hook 18 and the movable hook 1 are both slidably matched with the sleeve 2, and a second torsion spring is provided on the fixed hook 18, and the two ends of the second torsion spring are respectively against the movable hook 1 and the fixed hook. After the fixed hook 18 extends out of the sleeve 2, the movable hook 1 opens, and after the fixed hook 18 and the movable hook 1 are retracted into the sleeve 2, the fixed hook 18 and the movable hook 1 are closed to form a closed loop.

[0031] The working process of the utility model is:

[0032] 1. Press Figure 1 As shown, the pawl 8 is pressed to disengage the head of the pawl 8 from the ratchet bar 11, pushing the sliding sleeve 10 upward, driving the push-pull rod 4 to move upward, so that the upper part of the fixed hook 18 and the movable hook 1 extend out of the sleeve 2, and under the action of the second torsion spring, the movable hook 1 opens.

[0033] 2. Hook the movable hook 1 on the operating ring 19 of the box-type transformer, and then pull the sliding sleeve 10 downward, so that the movable hook 1 and the fixed hook 18 are retracted into the casing 2. At the same time, under the action of the casing 2, the movable hook 1 twists the second torsion spring, and the movable hook 1 and the fixed hook 18 are closed in the casing 2 to hook the operating ring 19. At the same time, the lower part of the operating rod of the box-type transformer connected to the operating ring 19 enters the top of the casing 2, and under the action of the pawl 8 and the ratchet 11, the positions of the movable hook 1 and the fixed hook 18 are locked.

[0034] 3. Twisting the connecting pipe 3 can drive the operating ring 19 to rotate, thereby operating the box-type transformer.

[0035] When the connecting pipe 3 is rotated, the movable hook 1, the fixed hook 18 and the operating ring 19 are locked, so that the hooking phenomenon will not occur, thereby ensuring the normal operation and the operation efficiency.

[0036] The tail of the connecting pipe 3 is fixedly connected with a quick-operating joint 13, which is hexagonal. By connecting an electric wrench to the quick-operating joint 13, the connecting pipe 3 can be driven to rotate, thereby greatly improving the working efficiency.

[0037] Example 2

[0038] Combination Figure 4 and Figure 5 As shown, the difference between this embodiment and embodiment 1 is that:

[0039] The sliding sleeve 10 is also provided with a button 6 on the side of the ratchet 8 near the hook, and a spring is provided between the button and the sliding sleeve 10. The button 6 is door-shaped, and its inner end is a claw 21. The ratchet bar 11 is provided with a second slide groove 16 near the upper end, and the ratchet bar 11 is provided with a first slide groove 14 at the lower side of the second slide groove 16. The first slide groove 14 is connected with the second slide groove 16, and the depth of the first slide groove 14 is greater than the depth of the second slide groove 16.

[0040] When the tail of the pawl 8 is pressed to disengage the head of the pawl 8 from the ratchet bar 11, the slide bar 10 is pushed upwards, during which the claw 21 slides in the first slide groove 14 until the claw 21 hits the top of the first slide groove 14. Then, after pressing the button 6, the claw 21 moves to the right, and then pushes the sliding sleeve 10 upwards, and the claw 21 enters the second slide groove 16, and the movable hook 1 and the fixed hook 18 extend out of the sleeve 2, and the movable hook 1 opens, so that the movable hook 1 can be disengaged from the operating ring 19.

[0041] The button 6, the first slide groove 14 and the second slide groove 16 provide a safety measure to prevent the movable hook 1 and the fixed hook 18 from accidentally extending out of the sleeve 2 and then becoming unhooked, thereby affecting the operation.

[0042] Example 3

[0043] The difference between this embodiment and embodiment 2 is that:

[0044] The push-pull rod 4 and the connecting tube 3 are clearance-matched, and a protective tube 5 is provided between the push-pull rod 4 and the connecting tube 3 and is sleeved outside the push-pull rod 4. The protective tube 5 is made of insulating material, and is fixedly connected to the push-pull rod 4. The protective tube 5 is slidingly matched with the connecting tube 3. The protective tube 5 can protect the push-pull rod 4, prevent the push-pull rod 4 from being worn, and prevent the push-pull rod 4 from bending due to force.

[0045] In addition, the utility model can also be used for operating a grounding rod, and the circular ring at the tail of the grounding rod can be operated to perform grounding operations on a conductor or a busbar.

[0046] The above-mentioned embodiments describe content in a relatively detailed and specific manner, and express the preferred embodiments of the present utility model. They are only used to illustrate the technical ideas and features of the present utility model, and their purpose is to enable technicians in this field to understand the content of the present utility model and implement it accordingly, but they are not limited to the present utility model. The patent scope of the present utility model cannot be limited only by this embodiment, that is, any equivalent changes or modifications made to the spirit disclosed by the present utility model, for researchers or technicians in this field, without departing from the structure of the present utility model, local improvements within the system and changes and conversions between subsystems, etc., are still within the patent scope of the present utility model.

Claims

1. A box-type transformer operating lever, characterized in that: The invention comprises a connecting tube (3), a sleeve (2) fixedly arranged at the head of the connecting tube (3), a hook slidably connected to the inner wall of the sleeve (2), a push-pull rod (4) arranged in the connecting tube (3), and a driving device for driving the push-pull rod (4) to move axially, wherein the push-pull rod (4) is fixedly connected to the hook, and under the drive of the driving device, the hook extends out of or retracts into the sleeve (2).

2. The box-type transformer operating lever according to claim 1, characterized in that: The tail of the connecting pipe (3) is fixedly connected with a quick-operating connector (13).

3. The box-type transformer operating lever according to claim 1, characterized in that: The driving device comprises a sliding sleeve (10) sleeved outside the connecting pipe (3), the sliding sleeve (10) being slidably connected to the connecting pipe (3), and the sliding sleeve (10) being drivingly connected to the push-pull rod (4).

4. The box-type transformer operating lever according to claim 3, characterized in that: A ratchet (11) is provided between the sliding sleeve (10) and the connecting tube (3), the ratchet (11) and the connecting tube (3) are in the same direction, the ratchet (11) and the connecting tube (3) are fixedly connected, a ratchet (8) is rotatably connected to the sliding sleeve (10), and the ratchet (8) is provided with a first torsion spring (9) for making the head of the ratchet (8) abut against the ratchet teeth of the ratchet (11); when the ratchet (8) cooperates with the ratchet (11), the sliding sleeve (10) moves in one direction, and the one-way movement direction is the direction away from the hook.

5. The box-type transformer operating lever according to claim 4, characterized in that: The sliding sleeve (10) is also elastically connected to a button (6) on the side of the ratchet (8) close to the hook, and the inner end of the button (6) is a claw (21). The end of the ratchet (11) close to the hook is provided with a second slide groove (16), and the ratchet (11) is provided with a first slide groove (14) on the side of the second slide groove (16) away from the hook. The first slide groove (14) is connected to the second slide groove (16), and the depth of the first slide groove (14) is greater than the depth of the second slide groove (16). After pressing the button (6), the sliding sleeve (10) is pushed in the direction close to the hook, and the hook extends out of the sleeve (2).

6. The box-type transformer operating lever according to claim 1, characterized in that: The hook comprises a fixed hook (18) and a movable hook (1); the middle part of the fixed hook (18) and the tail part of the movable hook (1) are rotatably connected; the fixed hook (18) is fixedly connected to the push-pull rod (4); the fixed hook (18) and the movable hook (1) are both slidably matched with the sleeve (2); a second torsion spring for opening the movable hook (1) is provided on the fixed hook (18); after the fixed hook (18) extends out of the sleeve (2), the movable hook (1) opens; after the fixed hook (18) and the movable hook (1) are retracted into the sleeve (2), the fixed hook (18) and the movable hook (1) close to form a closed loop.

7. The box-type transformer operating lever according to claim 3, characterized in that: The connecting tube (3) is provided with a notch (15) which is consistent with its axial direction, and a locking block (17) which is slidably matched with the connecting tube (3) is provided in the notch (15), and the sliding sleeve (10) and the push-pull rod (4) are both fixedly connected to the locking block (17).

8. The box-type transformer operating lever according to claim 1, characterized in that: The push-pull rod (4) and the connecting tube (3) are clearance-matched, a protective tube (5) is provided between the push-pull rod (4) and the connecting tube (3) and is sleeved outside the push-pull rod (4), the protective tube (5) is fixedly connected to the push-pull rod (4), and the protective tube (5) is slidingly matched with the connecting tube (3).

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