Length-adjustable rotating handle of low-voltage switch

Abstract

The utility model discloses a length-adjustable rotating handle of a low-voltage switch, which comprises a mounting cover, a handle is arranged on the mounting cover, a grip is arranged below the handle, a mounting rod is fixedly mounted on the handle, a first adjusting rod and a second adjusting rod are arranged between the mounting rod and the grip, a positioning seat is arranged below the mounting cover, and the first adjusting rod and the second adjusting rod are fixedly mounted on the mounting cover. The positioning seat is arranged corresponding to the grip, a positioning block is clamped on the grip, the positioning block is movably clamped with the positioning seat, a threaded rod is arranged in the mounting rod, a threaded pipe is arranged in the first adjusting rod, two groups of symmetrically distributed clamping frames are arranged in the positioning seat, and the two groups of clamping frames are movably clamped with the positioning block respectively. The position of the grip is adjusted through the mounting rod, the first adjusting rod and the second adjusting rod, so that the length of the rotating handle is adjusted, and users with different heights and body types or different using habits can well adapt to the rotating handle.

Description

Technical Field

[0001] This utility model relates to the field of rotary handle technology, specifically a rotary handle for a low-voltage switch with adjustable length. Background Technology

[0002] The rotary handle of a low-voltage switch is mainly used to switch electrical components in the low-voltage switch cabinet, realizing the switching of opening and closing and status. The length of the rotary handle of the low-voltage switch has a significant impact on its use, mainly in terms of operation convenience and safety. If the handle is too short, it will cause inconvenience to operate, and users will need to exert more force to turn the handle. Especially when frequent operation is required, it will increase the operator's fatigue. Conversely, if the handle is too long, it may lead to unstable operation, easy slippage, and affect the accuracy of operation.

[0003] In the existing technology, the rotary handle of low-voltage switch is not adjustable in length, which narrows its application range. Users of different heights and usage habits cannot adapt well to the fixed length rotary handle. In addition, the current rotary handle does not have a relatively stable self-locking device during use, which can easily cause accidental contact or be operated by unauthorized personnel during switch cabinet operation. Utility Model Content

[0004] The purpose of this invention is to provide a rotary handle for a low-voltage switch with adjustable length, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary handle for a low-voltage switch with adjustable length, comprising a mounting cover, a handle on the mounting cover, a grip below the handle, a mounting rod fixedly mounted on the handle, a first adjusting rod and a second adjusting rod between the mounting rod and the grip, the first adjusting rod being slidably connected to the mounting rod, the second adjusting rod being slidably connected to the first adjusting rod, the end of the second adjusting rod away from the first adjusting rod being fixedly connected to the grip, a positioning seat below the mounting cover, the positioning seat being correspondingly arranged with the grip, a positioning block being engaged with the grip, the positioning block being movably engaged with the positioning seat, a threaded rod being provided inside the mounting rod, a threaded tube being provided inside the first adjusting rod, and two sets of symmetrically distributed clips being provided inside the positioning seat, the two sets of clips being movably engaged with the positioning block respectively.

[0006] As a further preferred embodiment of this technical solution, the threaded rod passes through the mounting rod and is rotatably connected to the mounting rod via a bearing; the threaded rod passes through the first adjusting rod and is threadedly connected to the first adjusting rod; the threaded tube passes through the first adjusting rod and is rotatably connected to the first adjusting rod via a bearing; and the threaded tube passes through the second adjusting rod and is threadedly connected to the second adjusting rod.

[0007] As a further preferred embodiment of this technical solution, the threaded rod is provided with two sets of symmetrically distributed slots, and the threaded tube is provided with two sets of symmetrically distributed blocks. The blocks are arranged in correspondence with the slots, and the threaded tube is slidably connected to the threaded rod through the blocks.

[0008] As a further preferred embodiment of this technical solution, a first bevel gear is sleeved on the upper end of the threaded rod, and a second bevel gear is provided inside the mounting rod. The second bevel gear meshes with the first bevel gear, and the second bevel gear is rotatably connected to the mounting rod through a rotating rod.

[0009] As a further preferred embodiment of this technical solution, the two sets of card holders are slidably connected to the positioning seat, each set of card holders is fitted with a first spring, and each set of card holders is fixedly mounted with a slider. The two ends of the first spring are fixedly connected to the slider and the positioning seat, respectively. The positioning seat contains a lock cylinder, which passes through the positioning seat and is rotatably connected to it. A torsion spring is fitted on the lock cylinder, and the two ends of the torsion spring are fixedly connected to the lock cylinder and the positioning seat, respectively. The lock cylinder is embedded with multiple sets of equidistantly distributed second tumblers, and a slot is opened in the lock cylinder. The positioning seat contains multiple sets of equidistantly distributed first tumblers and multiple sets of equidistantly distributed second springs.

[0010] As a further preferred embodiment of this technical solution, racks are fixedly installed on both sets of card holders, and gears are sleeved on the lock cylinder. The gears are respectively meshed with the two sets of racks. Multiple sets of first and second tumblers are arranged in a corresponding manner. The first and second tumblers are attracted to each other. The two ends of the second spring are respectively fixedly connected to the first tumbler and the positioning seat.

[0011] This utility model provides a rotary handle for a low-voltage switch with adjustable length, which has the following advantages:

[0012] (1) This utility model achieves the adjustment of the grip position through the installation rod, the first adjustment rod and the second adjustment rod, thereby achieving the adjustment of the length of the rotary handle, so that users of different heights, body types or different usage habits can adapt well to the rotary handle, effectively expanding the applicability of the rotary handle; by rotating the installation rod, the rotation of the second bevel gear is driven, which in turn cooperates with the first bevel gear to make the threaded rod rotate. Under the limiting action of the installation rod, the first adjustment rod slides in the installation rod. At the same time, under the action of the locking block and the locking groove, the threaded tube rotates synchronously with the threaded rod. Under the limiting action of the first adjustment rod, the second adjustment rod slides in the first adjustment rod, thereby completing the adjustment of the grip length.

[0013] (2) This utility model achieves the positioning of the handle by using the positioning seat and positioning block. During the use of the rotating handle, there are effective positioning protection measures for the rotating handle in different positions, avoiding accidental touch or unauthorized operation of the rotating handle. The positioning seat is installed according to the position mark of the rotating handle switch. When the rotating handle is in a certain position, the positioning block is inserted into the corresponding positioning seat and locked by two sets of brackets. Without a specific key, the lock cylinder cannot be turned to open the two sets of brackets, and the positioning block cannot be pulled out. The rotating handle cannot be rotated at this time, so there will be no accidental touch or unauthorized rotation. At the same time, when the staff needs to rotate the handle, the staff uses a key of a specific shape to insert into the slot and pushes the second pin to the first pin to compress the second spring, so that the contact surface of the second pin and the first pin is flush with the contact surface of the lock cylinder and the positioning seat. Then, the lock cylinder can be turned by the key, which drives the gear to rotate. The two sets of racks connected to the gear push the brackets to both sides simultaneously, releasing the locking of the brackets on the positioning block. The positioning block can then be pulled out to freely rotate the rotating handle. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the first adjusting rod of this utility model;

[0016] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;

[0017] Figure 4 This is a schematic diagram of the positioning seat of this utility model;

[0018] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point -B;

[0019] In the diagram: 1. Mounting cover; 2. Handle; 3. Grip; 4. First adjusting rod; 5. Second adjusting rod; 6. Threaded rod; 7. Threaded tube; 8. Slot; 9. Locking block; 10. First bevel gear; 11. Rotating rod; 12. Second bevel gear; 13. Positioning seat; 14. Positioning block; 15. Lock bracket; 16. First spring; 17. Slider; 18. Rack; 19. Lock cylinder; 20. Gear; 21. Torsion spring; 22. Second spring; 23. First pin; 24. Second pin; 25. Slot; 26. Mounting rod. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, a rotary handle for a low-voltage switch with adjustable length includes a mounting cover 1, a handle 2 on the mounting cover 1, a grip 3 below the handle 2, a mounting rod 26 fixedly mounted on the handle 2, a first adjusting rod 4 and a second adjusting rod 5 between the mounting rod 26 and the grip 3, the first adjusting rod 4 being slidably connected to the mounting rod 26, the second adjusting rod 5 being slidably connected to the first adjusting rod 4, and the end of the second adjusting rod 5 away from the first adjusting rod 4 being fixedly connected to the grip 3, a positioning seat 13 below the mounting cover 1, the positioning seat 13 being correspondingly arranged with the grip 3, a positioning block 14 being snapped onto the grip 3, the positioning block 14 being movably snapped onto the positioning seat 13, a threaded rod 6 inside the mounting rod 26, a threaded tube 7 inside the first adjusting rod 4, and two sets of symmetrically distributed clips 15 inside the positioning seat 13. The frame 15 is movably engaged with the positioning block 14. The threaded rod 6 passes through the mounting rod 26 and is rotatably connected to the mounting rod 26 through a bearing. The threaded rod 6 passes through the first adjusting rod 4 and is threadedly connected to the first adjusting rod 4. The threaded tube 7 passes through the first adjusting rod 4 and is rotatably connected to the first adjusting rod 4 through a bearing. The threaded tube 7 passes through the second adjusting rod 5 and is threadedly connected to the second adjusting rod 5. Two sets of symmetrically distributed slots 8 are provided on the threaded rod 6. Two sets of symmetrically distributed locking blocks 9 are provided inside the threaded tube 7. The locking blocks 9 are correspondingly set with the locking slots 8. The threaded tube 7 is slidably sleeved with the threaded rod 6 through the locking blocks 9. A first bevel gear 10 is sleeved on the upper end of the threaded rod 6. A second bevel gear 12 is provided inside the mounting rod 26. The second bevel gear 12 is meshed with the first bevel gear 10. The second bevel gear 12 is rotatably connected to the mounting rod 26 through the rotating rod 11.

[0022] The position of the grip 3 is adjusted by the mounting rod 26, the first adjusting rod 4, and the second adjusting rod 5, thereby adjusting the length of the rotary handle. This allows users of different heights, body types, or usage habits to adapt well to the rotary handle, effectively expanding its applicability. Rotating the mounting rod 26 drives the second bevel gear 12 to rotate, which in turn, in conjunction with the first bevel gear 10, causes the threaded rod 6 to rotate. Under the limiting action of the mounting rod 26, the first adjusting rod 4 slides within the mounting rod 26. Simultaneously, under the action of the locking block 9 and the locking groove 8, the threaded tube 7 rotates synchronously with the threaded rod 6. Under the limiting action of the first adjusting rod 4, the second adjusting rod 5 slides within the first adjusting rod 4, thus completing the adjustment of the grip 3 length.

[0023] like Figure 4 and Figure 5As shown, two sets of card holders 15 are slidably connected to the positioning seat 13, and each set of card holders 15 is fitted with a first spring 16. Each set of card holders 15 is fixedly mounted with a slider 17. The two ends of the first spring 16 are fixedly connected to the slider 17 and the positioning seat 13, respectively. A lock cylinder 19 is provided inside the positioning seat 13, passing through and rotatably connected to it. A torsion spring 21 is fitted onto the lock cylinder 19, and the two ends of the torsion spring 21 are fixedly connected to the lock cylinder 19 and the positioning seat 13, respectively. Multiple sets of equidistantly distributed... The second pin 24, the lock cylinder 19 has a slot 25, the positioning seat 13 has multiple sets of equidistant first pins 23, the positioning seat 13 has multiple sets of equidistant second springs 22, the two sets of brackets 15 are fixedly mounted with racks 18, the lock cylinder 19 is sleeved with gears 20, the gears 20 are respectively meshed with the two sets of racks 18, the multiple sets of first pins 23 and second pins 24 are arranged in a corresponding manner, the first pins 23 and second pins 24 are attracted to each other, and the two ends of the second springs 22 are fixedly connected to the first pins 23 and the positioning seat 13 respectively.

[0024] The positioning seat 13, in conjunction with the positioning block 14, enables the positioning of the handle 3. During the use of the rotating handle, there are effective positioning protection measures for the rotating handle in different positions, preventing accidental touch of the rotating handle or unauthorized operation by unauthorized personnel.

[0025] This utility model provides a rotary handle for a low-voltage switch with adjustable length. The specific working principle is as follows: Rotating the mounting rod 26 drives the second bevel gear 12 to rotate, which in turn, in conjunction with the first bevel gear 10, causes the threaded rod 6 to rotate. Under the limiting action of the mounting rod 26, the first adjusting rod 4 slides within the mounting rod 26. Simultaneously, under the action of the locking block 9 and the locking groove 8, the threaded tube 7 rotates synchronously with the threaded rod 6. Under the limiting action of the first adjusting rod 4, the second adjusting rod 5 slides within the first adjusting rod 4, thereby completing the adjustment of the handle length. A positioning seat 13 is installed according to the switch position markings on the rotary handle. When the rotary handle is in a certain position, the positioning block 14 is inserted into the corresponding positioning seat 13, and the positioning block 14 is locked by two sets of locking brackets 15. Without special... The fixed key cannot turn the lock cylinder 19 to open the two sets of brackets 15, and thus the positioning block 14 cannot be pulled out. The rotating handle cannot be turned at this time, so there will be no accidental touch or unauthorized rotation. At the same time, when the staff needs to turn the handle 2, the staff uses a key of a specific shape to insert into the slot 25 and pushes the second pin 24 toward the first pin 23 to compress the second spring 22, so that the contact surface of the second pin 24 and the first pin 23 is flush with the contact surface of the lock cylinder 19 and the positioning seat 13. Then the lock cylinder 19 can be turned by the key, which drives the gear 20 to rotate. The two sets of racks 18 connected to the gear 20 push the brackets 15 to both sides at the same time, releasing the locking of the brackets 15 onto the positioning block 14. The positioning block 14 can then be pulled out and the rotating handle can be turned freely.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary handle for a low-voltage switch with adjustable length, comprising a mounting cover (1), characterized in that: The mounting cover (1) is provided with a handle (2), and a grip (3) is provided below the handle (2). A mounting rod (26) is fixedly mounted on the handle (2). A first adjusting rod (4) and a second adjusting rod (5) are provided between the mounting rod (26) and the grip (3). The first adjusting rod (4) is slidably connected to the mounting rod (26), and the second adjusting rod (5) is slidably connected to the first adjusting rod (4). The end of the second adjusting rod (5) away from the first adjusting rod (4) is fixedly connected to the grip (3). The mounting cover (1) is provided with a positioning seat (13) below it. The positioning seat (13) is correspondingly set with the handle (3). A positioning block (14) is snapped onto the handle (3). The positioning block (14) is movably snapped onto the positioning seat (13). The mounting rod (26) is provided with a threaded rod (6). The first adjusting rod (4) is provided with a threaded tube (7). The positioning seat (13) is provided with two sets of symmetrically distributed clips (15). The two sets of clips (15) are movably snapped onto the positioning block (14) respectively.

2. The rotary handle of a low-voltage switch with adjustable length according to claim 1, characterized in that: The threaded rod (6) passes through the mounting rod (26) and is rotatably connected to the mounting rod (26) through a bearing. The threaded rod (6) passes through the first adjusting rod (4) and is threadedly connected to the first adjusting rod (4). The threaded tube (7) passes through the first adjusting rod (4) and is rotatably connected to the first adjusting rod (4) through a bearing. The threaded tube (7) passes through the second adjusting rod (5) and is threadedly connected to the second adjusting rod (5).

3. The rotary handle of a low-voltage switch with adjustable length according to claim 1, characterized in that: The threaded rod (6) has two sets of symmetrically distributed slots (8), and the threaded tube (7) has two sets of symmetrically distributed blocks (9). The blocks (9) are arranged in correspondence with the slots (8), and the threaded tube (7) is slidably connected to the threaded rod (6) through the blocks (9).

4. The rotary handle of a low-voltage switch with adjustable length according to claim 1, characterized in that: The upper end of the threaded rod (6) is fitted with a first bevel gear (10), and the mounting rod (26) is provided with a second bevel gear (12). The second bevel gear (12) meshes with the first bevel gear (10), and the second bevel gear (12) is rotatably connected to the mounting rod (26) through a rotating rod (11).

5. The rotary handle of a low-voltage switch with adjustable length according to claim 1, characterized in that: The two sets of card holders (15) are slidably connected to the positioning seat (13). A first spring (16) is sleeved on each of the two sets of card holders (15). A slider (17) is fixedly installed on each of the two sets of card holders (15). The two ends of the first spring (16) are fixedly connected to the slider (17) and the positioning seat (13) respectively. A lock cylinder (19) is provided inside the positioning seat (13). The lock cylinder (19) passes through the positioning seat (13) and is rotatably connected to the positioning seat (13). A torsion spring (21) is sleeved on the lock cylinder (19). The two ends of the torsion spring (21) are fixedly connected to the lock cylinder (19) and the positioning seat (13) respectively. Multiple sets of equidistant second pins (24) are embedded on the lock cylinder (19). A slot (25) is opened in the lock cylinder (19). Multiple sets of equidistant first pins (23) are provided in the positioning seat (13). Multiple sets of equidistant second springs (22) are provided in the positioning seat (13).

6. The rotary handle of a low-voltage switch with adjustable length according to claim 5, characterized in that: Both sets of the card holders (15) are fixedly installed with racks (18), and gears (20) are sleeved on the lock cylinder (19). The gears (20) are respectively meshed with the two sets of racks (18). Multiple sets of first pins (23) and second pins (24) are arranged in a corresponding manner. The first pins (23) and second pins (24) are attracted to each other. The two ends of the second spring (22) are respectively fixedly connected to the first pins (23) and the positioning seat (13).

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