Electric short insulating crank rod

Abstract

The invention relates to the technical field of hot-line work, in particular to an electric short insulating crank rod which comprises a crank sleeve and an insulating shell arranged on the outer wall of the crank sleeve, and the crank sleeve comprises a driving rotating shaft, a driving part, a sliding part, a rotating part and a plum blossom rotating cylinder; according to the invention, by arranging the driving part at the tail part of the crank sleeve, electric or manual driving can be realized, so that rotation of the plum blossom rotating drum is efficiently and accurately controlled, and then an external joint is driven to carry out hot-line work; due to the design of the sliding part, the crank rod can stretch out and draw back in the axial direction of the driving rotating shaft so as to adapt to an internal slit or a narrow space, the flexibility and adaptability of operation are ensured, meanwhile, through universal connection of the rotating part and the sliding part, the angle between the plum blossom rotating cylinder and the crank rod can be changed, the complex operation environment is further adapted, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of live working, in particular to an electric short insulating crank rod. Background Art

[0002] The rapid development of the power industry has made safe operations extremely important to all power fields. Live working is an on-site operation method such as non-stop maintenance and testing on high-voltage electrical equipment. Live working is a way to avoid power outages for maintenance and ensure normal power supply. The insulated crank rod is a special insulating tool in the power system and is often used for live working, live maintenance and live maintenance.

[0003] First, a manual short insulated crank lever with publication number CN213753738U relies on manual drive to rotate. Although it is flexible and changeable, its work efficiency is low and it is difficult to meet the current high standards of the power industry for efficient live operations. The manual short insulated crank lever in the prior art is used to accurately control the rotation of the hardware by setting external limit holes and internal limit holes, but its manual operation method affects the working speed and is difficult to operate with one hand, limiting its scope of use. At the same time, an electric short insulated crank lever with publication number CN216598747U in the prior art increases the rotational force through a motor and a power take-off unit, which significantly improves the work efficiency. However, in some situations where slow rotation or precise control of the rotational force is required, this device cannot meet actual needs because its output rotational force is fixed and lacks adjustment function.

[0004] Secondly, the insulating crank lever in the prior art is mainly operated along the axis, which makes it difficult to perform live work in a narrow operating space. Although the manual and electric insulating crank lever designs in the prior art can meet certain operating requirements, the shape and layout of the insulating crank lever cannot be flexibly adapted in complex operating environments, such as the internal slits or narrow spaces of power maintenance equipment, thereby limiting its application scope.

[0005] Finally, in summary, the electric and manual insulating crank levers in the prior art each have their own advantages, but there are certain limitations in improving work efficiency, adapting to different operating spaces, and accurately controlling rotation, especially in some environments that require delicate operations, where there is obvious room for improvement. Therefore, it is necessary to develop an insulating crank lever that can effectively improve work efficiency, adapt to complex working environments, and have improved flexibility and precision in rotation control to meet the current requirements of the power industry for live work. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides an electric short insulating crank rod, which adopts the following technical solution.

[0007] An electric short insulating crank rod, the crank rod comprises a crank sleeve and an insulating shell arranged on the outer wall of the crank sleeve, the crank sleeve comprises: The driving shaft is rotatably arranged in the crank sleeve through a bracket and is used to output torque power; The driving part is located in the crank sleeve and connected to one end of the driving shaft, and provides driving force to the driving shaft by electric or manual means; The sliding part is arranged at the other end of the driving shaft and is axially slidably matched with the driving shaft to adjust the axial length of the crank rod; The rotating part is connected to the side of the sliding part away from the driving shaft through a universal joint so that the rotating part rotates around its end; The plum blossom rotating drum is arranged on a side of the rotating part away from the sliding part, and the external joint is connected to the rotating part through the plum blossom rotating drum.

[0008] Preferably, the sliding portion comprises: A sliding shaft axially slides in a sliding cavity provided in the driving shaft, and a second bracket is connected to one end of the sliding shaft away from the driving shaft; The guide sleeve is axially slidably arranged on the inner side wall of the crank sleeve and is connected to the second bracket. When the guide sleeve slides axially, the sliding shaft is driven to move synchronously through the second bracket. A sliding hole is provided on the side wall of the guide sleeve for the first bracket to slide out of position.

[0009] Preferably, the rotating part comprises: The output shaft is connected to one end of the sliding shaft through a universal joint. When the sliding shaft rotates, the output shaft is driven to rotate through the universal joint. The output sleeve is sleeved on the outer side of the output shaft. The output shaft is rotatably arranged on the axis of the output sleeve through the bracket. The plum blossom rotating cylinder is rotatably connected to the end of the output sleeve away from the crank sleeve, and the plum blossom rotating cylinder is connected to the output shaft. Two axial slide rails are symmetrically connected to one side of the crank sleeve along the sliding axis; The two guide brackets are symmetrically connected to the outer wall of the output sleeve corresponding to the axial slide rail, one end of which is slidably matched with the axial slide rail, and drives the output sleeve to rotate with the universal joint as the axis.

[0010] Preferably, one end of the guide bracket extends to a position that coincides with a vertical plane where the center of the universal joint shaft is located.

[0011] Preferably, one end of the guide bracket facing the sliding shaft is connected to the axial slide rail via a transition piece, and the transition piece includes: A steering shaft is rotatably connected to a disc at one end of the guide bracket toward the sliding shaft; The axial sliding block is rotatably connected to the side of the steering shaft away from the disc, and is slidably arranged in an axial sliding groove provided on the inner side of the axial sliding rail.

[0012] Preferably, the adapter also includes: The penetrating shaft sequentially slides along the axial direction through the penetrating disc, the steering shaft, the axial sliding block and the axial sliding rail. The axial sliding rail is provided with a penetrating sliding hole along the axial direction for the penetrating shaft to slide.

[0013] The limiting plate is arranged at one end of the penetration shaft facing the universal joint, and a reset spring is connected between the limiting plate and the disc to realize the automatic reset function of the penetration shaft.

[0014] Two plug-in rods are symmetrically arranged on the limit plate. A plurality of through holes for the plug-in rods to pass through are opened in the circumference of the disc. A plurality of fixing holes for fixing the plug-in rods are opened on the inner wall of the axial slide rail and along the length direction of the axial slide groove.

[0015] Preferably, the axial slide rail adopts an arc-shaped cross-section design, and the crank sleeve is located on one side of the axial slide rail and is symmetrically provided with two arc-shaped slide grooves, in which an arc-shaped plate is slidably installed, and the arc-shaped plate is directional-slidably arranged along the two axial slide rails.

[0016] Preferably, the driving part includes a motor drive and a manual drive, a central turntable is mounted on one end of the driving shaft away from the sliding shaft, the motor drive is arranged on one side of the central turntable away from the driving shaft, and the manual drive is arranged on the other side of the central turntable.

[0017] When the motor drive is running, the manual drive cannot control the operation of the turntable. When the motor drive is not running, the manual drive controls the operation of the turntable.

[0018] Preferably, a semi-ring plate is provided on the side of the arc-shaped plate facing the plum blossom rotating drum, so that a cylindrical structure is formed between the circular ring and the two semi-ring plates.

[0019] In summary, the present invention includes the following beneficial technical effects: 1. The present invention can realize electric or manual drive by setting a driving part located at the tail of the crank sleeve, so as to efficiently and accurately control the rotation of the plum blossom drum, and then drive the external joint to perform live operation; the design of the sliding part enables the crank rod to be able to extend and retract along the axial direction of the driving shaft to adapt to the internal slit or narrow space, thereby ensuring the flexibility and adaptability of the operation.

[0020] 2. The present invention can change the angle between the plum blossom rotating drum and the crank rod through the universal connection between the rotating part and the sliding part, further adapt to complex working environments and improve work efficiency.

[0021] 3. The present invention drives the rotation of the central rotating disk by controlling the rotation of different central rotating shafts, thereby adjusting the rotational force of the plum blossom rotating drum. It has high flexibility and adaptability, and can flexibly adjust the rotational force of the driving rotating shaft according to the needs of the actual working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a structural schematic diagram of the crank rod of the present invention.

[0023] Figure 2 The invention is a schematic diagram of the structure among the crank sleeve, the driving shaft, the driving part, the sliding part, the rotating part, the universal joint and the plum blossom rotating drum.

[0024] Figure 3 It is a schematic diagram of the structure among the universal joint, the sliding part and the driving shaft of the present invention.

[0025] Figure 4 It is a schematic diagram of the structure between the universal joint and the rotating part of the present invention.

[0026] Figure 5 It is a schematic diagram of the structure among the adapter, the axial slide rail and the guide bracket of the present invention.

[0027] Figure 6 The present invention Figure 5 A partial enlarged view of point A.

[0028] Figure 7 It is a schematic structural diagram of the adapter of the present invention.

[0029] Figure 8 It is a schematic diagram of the structure among the crank sleeve, axial slide rail, arc plate, semi-ring plate and output sleeve of the present invention.

[0030] Fig. 9 The structure of the driving part of the present invention is shown in FIG. Figure 1 .

[0031] Fig.10 The present invention Fig. 9 A partial enlarged view of point B.

[0032] Fig.11 It is a schematic diagram of the structure of the manual drive of the present invention.

[0033] Fig.12 It is a structural schematic diagram of the insulating shell of the present invention.

[0034] Fig.13 It is a schematic diagram of the structure of the motor drive of the present invention.

[0035] Fig.14 It is a schematic structural diagram of the driving member of the present invention.

[0036] Fig.15 The structure of the driving part of the present invention is shown in FIG. Figure 2 .

[0037] Fig.16 It is a schematic diagram of the structure between the connecting shaft, the rotating shaft and the docking slide rod of the present invention.

[0038] Explanation of the reference numerals: 1. crank sleeve; 2. insulating shell; 3. driving shaft; 4. driving part; 5. sliding part; 6. rotating part; 7. universal joint; 8. plum blossom rotating drum; 51. sliding shaft; 52. guide sleeve; 53. giving way sliding hole; 54. bracket 2; 61. output shaft; 62. output sleeve; 63. axial slide rail; 64. guide bracket; 65. adapter; 651. steering shaft; 652. axial slider; 653. through-shaft; 631. through-shaft sliding hole; 654. limit plate; 655. plug-in rod; 641. through hole; 632. fixing hole; 11. arc slide groove; 12. arc plate; 13. semi-ring plate; 41. middle turntable; 42. manual Drive; 43, motor drive; 421, gear ring one; 422, gear one; 423, shaft one; 424, support frame; 425, rotating knob; 426, elastic telescopic rod; 21, fixed section; 22, sliding section; 23, spiral section; 431, servo motor; 432, fixed plate; 433, gear ring two; 434, rotating shaft; 435, gear two; 441, positioning shaft; 442, electric push rod; 443, adapter block; 444, connecting ring; 445, connecting shaft; 451, axial docking slide hole; 452, docking slide rod; 46, mounting plate; 461, axial telescopic rod; 462, gear ring three; 463, control motor; 464, gear three. DETAILED DESCRIPTION

[0039] The following is combined with Figures 1 to 16 The present invention is described in further detail.

[0040] Embodiment 1: See also Figure 1 and Figure 2 , an electric short insulating crank rod, the crank rod comprises a crank sleeve 1 and an insulating shell 2 arranged on the outer wall of the crank sleeve 1, and the crank sleeve 1 comprises: The driving shaft 3 is rotatably arranged in the crank sleeve 1 through a bracket, and is used for outputting torque power.

[0041] The driving part 4 is located in the crank sleeve 1 and connected to one end of the driving shaft 3, and provides driving force to the driving shaft 3 in an electric or manual manner.

[0042] The sliding portion 5 is disposed at the other end of the driving shaft 3 and is axially slidably matched with the driving shaft 3 to adjust the axial length of the crank rod.

[0043] The rotating part 6 is connected to the side of the sliding part 5 away from the driving shaft 3 through the universal joint 7, so that the rotating part 6 can rotate around its end.

[0044] The plum blossom rotating drum 8 is arranged on the side of the rotating part 6 away from the sliding part 5. The external joint is connected to the rotating part 6 through the plum blossom rotating drum 8. The torque power provided by the driving part 4 is transmitted to the external joint through the driving shaft 3, the sliding part 5, the rotating part 6 and the plum blossom rotating drum 8.

[0045] In this embodiment, the driving part 4 provided at the tail of the crank sleeve 1 drives the driving shaft 3 to realize rotational motion, and the mechanical energy is transmitted to the sliding part 5 via the driving shaft 3, and then the motion is transmitted to the rotating part 6 through the universal joint 7, and then the plum blossom rotating cylinder 8 at the end of the rotating part 6 transmits the power to the external joint, so that the on-site workers can perform live operations.

[0046] Among them, the purpose of setting the sliding part 5 is to cope with the challenges of narrow gaps or narrow spaces inside the power maintenance equipment. By extending or shortening axially along the driving shaft 3, the sliding part 5 can change the length of the crank rod to meet the needs of complex working environments.

[0047] In addition, the purpose of setting the rotating part 6 is to cope with complex environments where the operation along the axis direction is limited. Through the universal joint 7, the angle between the rotating part 6 and the sliding part 5 can be adjusted, thereby changing the angle between the plum blossom rotating drum 8 and the crank rod, further enhancing the applicability of this embodiment in complex working environments.

[0048] The driving unit 4 supports two modes: electric and manual. The electric mode can greatly improve the work efficiency, while the manual mode ensures the effective control of the rotation force of the plum blossom rotating drum 8 in high-precision operation. In summary, this embodiment has the technical characteristics of significantly improving work efficiency, adapting to complex working environments, and showing excellent flexibility and precision in rotation control.

[0049] See also Figure 3 , the sliding part 5 comprises: The sliding shaft 51 axially slides in the sliding cavity provided in the driving shaft 3 , and one end of the sliding shaft 51 away from the driving shaft 3 is connected to a bracket 2 54 .

[0050] The guide sleeve 52 is axially slidably arranged on the inner wall of the crank sleeve 1 and is connected to the bracket 2 54. When the guide sleeve 52 slides axially, the sliding shaft 51 is driven to move synchronously through the bracket 2 54. The side wall of the guide sleeve 52 is provided with a make-way sliding hole 53 for the bracket 1 to make way and slide.

[0051] In this embodiment, when the length of the crank rod needs to be adjusted, by pulling the guide sleeve 52 and the bracket 2 54, the sliding shaft 51 can be caused to slide axially along the sliding cavity, thereby changing the distance between the universal joint 7 and the driving shaft 3, thereby achieving the adjustment of the axial length of the crank rod.

[0052] In this embodiment, the main purpose of providing the guide sleeve 52 is to improve the stability of the sliding shaft 51 during rotation and prevent the sliding shaft 51 from axial displacement. In order to prevent the guide sleeve 52 from colliding and interfering with the bracket 1 when sliding on the inner wall of the crank sleeve 1, the guide sleeve 52 is provided with a strip-shaped sliding hole 53 along the axial direction for the bracket 1 to make way when sliding. This design effectively solves the problem of collision and interference between the guide sleeve 52 and the bracket 1, and enhances the reliability and service life of the overall device.

[0053] See also Figure 4 , the rotating part 6 comprises: The output shaft 61 is connected to one end of the sliding shaft 51 through a universal joint 7. When the sliding shaft 51 rotates, the output shaft 61 is driven to rotate through the universal joint 7.

[0054] The output sleeve 62 is sleeved on the outside of the output shaft 61. The output shaft 61 is rotatably arranged on the axis of the output sleeve 62 through the bracket. The plum blossom rotating cylinder 8 is rotatably connected to the end of the output sleeve 62 away from the crank sleeve 1, and the plum blossom rotating cylinder 8 is connected to the output shaft 61.

[0055] The two axial slide rails 63 are axially symmetrically connected to one side of the crank sleeve 1 along the sliding axis 51 .

[0056] The two guide brackets 64 are symmetrically connected to the outer wall of the output sleeve 62 corresponding to the axial slide rail 63, one end of which is slidably matched with the axial slide rail 63, and drives the output sleeve 62 to rotate with the universal joint 7 as the axis.

[0057] In this embodiment, by adding a universal joint 7, the direction of the output sleeve 62 can be flexibly adjusted so that any desired angle can be formed between the output shaft 61 and the sliding shaft 51. The maximum swing angle of the universal joint 7 of different models is different. Generally, the angle is less than 90°. When the swing angle of the universal joint 7 approaches or reaches 90°, it will be at a transmission dead point. Since the deflection angle of the driving force is too large, the torque cannot be effectively transmitted, and normal transmission cannot be achieved. Therefore, the actual maximum swing angle will vary according to the specific brand and model.

[0058] When the driving unit 4 drives the driving shaft 3 to rotate, the driving shaft 3 drives the output shaft 61 to rotate synchronously via the sliding shaft 51 and the universal joint 7. In order to ensure the stability of the output shaft 61 and prevent it from axial movement, the present embodiment is specially provided with an axial slide rail 63. With one end of the guide bracket 64 sliding on the axial slide rail 63, the guide bracket 64 can not only move smoothly along the direction of the axial slide rail 63, but also rotate freely on the plane of the axial slide rail 63, thereby ensuring the multi-angle rotation of the plum blossom drum 8 and better adapting to the requirements of complex working environment.

[0059] Specifically, one end of the guide bracket 64 extends to a position that coincides with the vertical plane where the center of the rotation axis of the universal joint 7 is located. With this design, one end of the guide bracket 64 can move smoothly along the axial slide rail 63 and can rotate flexibly within the plane of the axial slide rail 63, and its rotation center is located on the same vertical plane as the center of the rotation axis of the universal joint 7.

[0060] Embodiment 2: On the basis of Example 1, since the output shaft 61 is rotated at an angle with the sliding shaft 51 through the universal joint 7, and the guide sleeve 52 on the outside of the output shaft 61 is arranged to be both rotatable and slidable between the two axial slide rails 63, this design may cause certain instability in the guide sleeve 52 during the process of the output shaft 61 driving the plum blossom drum 8 to rotate.

[0061] Based on this, in this embodiment, the end of the guide bracket 64 facing the sliding shaft 51 is connected to the axial slide rail 63 through an adapter 65, so as to ensure that the guide bracket 64 can not only achieve smooth reciprocating motion and rotation on the axial slide rail 63, but also provide excellent stability performance for the guide sleeve 52. In a more advanced sense, by introducing the adapter 65, the axial movement problem can be significantly reduced while optimizing the angle adjustment capability between the output shaft 61 and the sliding shaft 51, thereby ensuring the accuracy and stability of the mechanism movement. This design concept fully demonstrates the in-depth understanding and optimization capabilities of the dynamic characteristics of the mechanical structure, laying a solid foundation for the efficient operation of the overall system.

[0062] For details, see Figures 5 to 7 , the adapter 65 comprises: The steering shaft 651 is rotatably connected to the disc at one end of the guide bracket 64 facing the sliding shaft 51 .

[0063] The axial sliding block 652 is rotatably connected to the side of the steering shaft 651 away from the disc, and is slidably disposed in an axial sliding groove provided on the inner side of the axial sliding rail 63 .

[0064] In this embodiment, a disk is arranged on the side of the guide bracket 64 facing the sliding shaft 51, and the axis of the disk is located on the vertical center plane of the rotating shaft of the universal joint 7. Therefore, when the output shaft 61 is driven to rotate around the center of the rotating shaft of the universal joint 7, the output sleeve 62 rotates synchronously through the center of the disk of the guide bracket 64. Specifically, the steering shaft 651 is installed in a colinear manner with the center of the disk, so that its axis is also located on the vertical center plane of the rotating shaft of the universal joint 7. Therefore, when the output shaft 61 rotates around the center of the rotating shaft of the universal joint 7, the output sleeve 62 rotates synchronously around the steering shaft 651 through the guide bracket 64.

[0065] At the same time, considering that the sliding shaft 51 moves axially along the driving shaft 3 to adjust the length of the crank rod, the universal joint 7 will move accordingly. In order to adapt to the axial movement of the universal joint 7, an axial slider 652 is provided in this embodiment. When the sliding shaft 51 moves, the universal joint 7 drives the output shaft 61, the bracket 3, the output sleeve 62 and the guide bracket 64 to move axially as a whole. In this process, the guide bracket 64 drives the axial slider 652 to move in the axial slide groove through the steering shaft 651 to ensure effective sliding and movement coordination between the guide bracket 64 and the axial slide rail 63.

[0066] Through the above design, it is possible to meet the needs of axial movement while maintaining high-precision rotation, ensuring the efficient operation of the entire system.

[0067] Continue reading Figures 5 to 7 , the adapter 65 further includes: The penetrating shaft 653 slides through the penetrating disc, the steering shaft 651, the axial sliding block 652 and the axial sliding rail 63 in sequence along the axial direction. The axial sliding rail 63 is provided with a penetrating sliding hole 631 along the axial direction for the penetrating shaft 653 to slide.

[0068] The limiting plate 654 is disposed at one end of the penetration shaft 653 facing the universal joint 7 , and a reset spring is connected between the limiting plate 654 and the disc to realize the automatic reset function of the penetration shaft 653 .

[0069] Two plug-in rods 655 are symmetrically arranged on the limiting plate 654. A plurality of through holes 641 for the plug-in rods 655 to pass through are opened in the circumferential direction of the disk. A plurality of fixing holes 632 for fixing the plug-in rods 655 are opened on the inner wall of the axial slide rail 63 and along the length direction of the axial slide groove.

[0070] In order to ensure the stability of the guide sleeve 52 when the output shaft 61 rotates, the present embodiment adopts a design in which the plug-in rod 655 passes through the through hole 641 and is plugged into the fixed hole 632, thereby limiting the rotation direction of the guide bracket 64. When the rotation angle of the output shaft 61 needs to be adjusted, the staff can push the through shaft 653 to move it in the direction of the universal joint 7, thereby driving the limit plate 654 to move synchronously. At this time, the plug-in rod 655 will withdraw from the fixed hole 632 and the through hole 641, so that the reset spring is in a stretched state. Subsequently, the output shaft 61 can rotate freely under the constraint of the universal joint 7, and the guide bracket 64 will also adjust the angle as the steering shaft 651 rotates on the axial slider 652. After the angle adjustment is completed, the pressing force on the through shaft 653 is released, and the limit plate 654 will push the plug-in rod 655 to reinsert the fixed hole 632 and the through hole 641 by relying on the resilience of the reset spring, thereby fixing the guide bracket 64 on the axial slide rail 63 again.

[0071] If the length of the crank rod needs to be adjusted, the staff can push the plug rod 655 to make it withdraw from the fixing hole 632, thereby releasing the fixing state between the guide bracket 64 and the axial slide rail 63, allowing the sliding shaft 51 to move freely along the axial slide rail 63, thereby adjusting the length of the crank rod.

[0072] In addition, it is worth mentioning that the penetration shaft 653 can freely slide along the axial direction through the disc, the steering shaft 651 and the axial slider 652 without being subjected to radial force. Therefore, even if the guide bracket 64 rotates, the penetration shaft 653, the limit plate 654 and the plug rod 655 will not rotate accordingly.

[0073] In summary, this design not only ensures the positioning accuracy of the guide bracket 64 under different working conditions, but also provides a convenient operation method for adjusting the angle and length for the operator.

[0074] See also Figure 5 and Figure 8 The axial slide rail 63 adopts an arc-shaped cross-section design. The crank sleeve 1 is located on one side of the axial slide rail 63 and is symmetrically provided with two arc-shaped slide grooves 11. An arc-shaped plate 12 is slidably installed in the arc-shaped slide groove 11. The arc-shaped plate 12 is directional and slidingly arranged along the two axial slide rails 63. The two arc-shaped plates 12 and the two axial slide rails 63 together form a complete circular ring to protect and cover the sliding part 5, the rotating part 6 and the universal joint 7.

[0075] A semi-ring plate 13 is provided on one side of the arc plate 12 facing the plum blossom rotating drum 8 , so that a cylindrical structure is formed between the circular ring and the two semi-ring plates 13 .

[0076] According to the present embodiment, when the output shaft 61 and the sliding shaft 51 need to be coaxial, the arc plate 12 will be completely pushed to the end position of the axial slide rail 63, so that the two arc plates 12 and the two axial slide rails 63 together form a complete circular ring structure. However, if the output shaft 61 and the sliding shaft 51 need to be adjusted to a predetermined angle, the arc plate 12 can be pushed to make it move accordingly in the arc slot 11, and the movement stroke should be adjusted according to the required angle of the output shaft 61 to ensure the organic combination of flexibility and adaptability.

[0077] Embodiment three: Based on the first embodiment, the driving unit 4 can select a suitable driving mode according to actual needs, such as improving work efficiency or improving precise control. Fig. 9 The driving unit 4 includes a motor drive 43 and a manual drive 42, which supports the switching of driving modes and ensures the flexibility of operation. Specifically, the end of the driving shaft 3 away from the sliding shaft 51 is equipped with a middle turntable 41, the motor drive 43 is arranged on one side of the middle turntable 41 away from the driving shaft 3, and the manual drive 42 is arranged on the other side of the middle turntable 41.

[0078] The motor drive 43 and the manual drive 42 both drive the driving shaft 3 to operate by controlling the middle turntable 41. It should be noted that when the motor drive 43 is operating, the manual drive 42 will not be able to control the operation of the middle turntable 41; and when the motor drive 43 stops operating, the manual drive 42 can control the operation of the middle turntable 41.

[0079] For details, see Figures 9 to 11 , manual drive 42 includes: The gear ring 1 421 is coaxially mounted on one side of the rotating disk 41 .

[0080] The gear 1 422 is externally meshed with the gear ring 1 421 .

[0081] The rotating shaft 423 is slidably disposed in the crank sleeve 1 through the support frame 424 and is rotationally connected to the support frame 424. The gear 422 is installed on the rotating shaft 423.

[0082] The rotating knob 425 is fixedly connected to the other end of the rotating shaft 423, and an operating hole is provided on the outer side wall of the crank sleeve 1 for the rotating knob 425 to extend out.

[0083] The elastic telescopic rod 426 is arranged on the inner wall of the crank sleeve 1 through a fixed side plate, and its telescopic end is rotatably connected to the rotating knob 425.

[0084] In this embodiment, the operator drives the rotating knob 425 to rotate through the operating hole, thereby causing the rotating shaft 1 423 and its matching gear 1 422 to operate synchronously. The gear 1 422 drives the middle turntable 41 to rotate through the meshing mechanism with the gear ring 1 421, thereby driving the driving shaft 3 to rotate, achieving precise control.

[0085] When manual drive 42 is not needed, the operator can push the rotating knob 425 through the operating hole to move it along the direction of the elastic telescopic rod 426 and compress the elastic telescopic rod 426, thereby driving the gear 1 422 to move synchronously along the rotating shaft 1 423 connected thereto, thereby releasing the meshing state of the gear 1 422 and the gear ring 1 421. When the manual drive 42 function needs to be restored, the operator only needs to release the force applied to the rotating knob 425, and the elastic telescopic rod 426 will cause the gear 1 422 to mesh with the gear ring 1 421 again.

[0086] See also Fig.12In order to realize the instant activation and deactivation of the manual drive 42 function, a special insulating housing 2 is designed in this embodiment, which includes a fixed section 21, a sliding section 22 and a spiral section 23. The sliding section 22 is located between the fixed section 21 and the spiral section 23, and is rotatably connected with the spiral section 23 through axial matching. At the same time, there is no direct connection between the sliding section 22 and the fixed section 21. An adapter hole matching the size of the operating hole is opened at a corresponding position on the sliding section 22, and it is ensured that the rotating knob 425 can expose the adapter hole part.

[0087] The spiral section 23 is threadedly connected to the outer wall of the crank sleeve 1. Therefore, when the manual drive 42 mode is not in operation, the operator can control the spiral section 23 to move in a spiral manner, driving the sliding section 22 to move along the axial direction of the crank sleeve 1. This axial movement will cause the sliding section 22 to drive the rotating knob 425 to move synchronously through the adapter hole, thereby releasing the meshing state between the gear 1 422 and the gear ring 1 421. When the need for manual drive 42 is restored, it is only necessary to rotate the spiral section 23 in the reverse direction to reset the state, and the sliding section 22 will also move in the opposite direction, releasing the pressure on the rotating knob 425, so that the elastic telescopic rod 426 drives the rotating knob 425 to automatically reset and re-engage with the gear ring 1 421.

[0088] In summary, this embodiment ensures smooth conversion between the manual drive 42 and the non-manual drive 42 modes, and improves the operational flexibility and safety of the device.

[0089] See also Fig. 9 , the motor drive 43 comprises: The servo motor 431 is installed at the tail end of the crank sleeve 1.

[0090] The driving member is installed in the crank sleeve 1 and is located between the servo motor 431 and the middle turntable 41 .

[0091] The servo motor 431 drives the driving member to operate, and drives the middle turntable 41 to rotate through the driving member, thereby driving the driving shaft 3 to rotate.

[0092] Embodiment 4: On the basis of the third embodiment, in order to adapt to the requirements of the rotational force required by the plum blossom drum 8 in different working environments, in this embodiment, the flexible regulation of the rotational force applied by the servo motor 431 is achieved through the sophisticated design of the driving member, so that the driving force can be accurately adjusted according to the actual working needs. Specifically: See also Fig. 9 and Figure 13-Figure 16The driving member includes a fixed disk 432 installed in the crank sleeve 1. A side of the rotating disk 41 facing the fixed disk 432 is provided with a gear ring 2 433 rotating on the inner wall of the crank sleeve 1. A plurality of rotating shafts 434 are rotatably mounted on the fixed disk 432, and the distances from these rotating shafts 434 to the center of the fixed disk 432 are different to form different transmission ratios. A gear 2 435 is fixedly mounted on each rotating shaft 434, and the size of each gear 2 435 is different, ensuring that the gears 2 435 are not meshed with each other to avoid interference at the same time, thereby ensuring the smoothness and stability of the transmission. All gears 2 435 are in meshing relationship with the gear ring 2 433, and can effectively transmit power.

[0093] In this design, by precisely controlling the rotation of different gears 2 435, the rotational force of the plum blossom drum 8 can be flexibly adjusted in different working environments, thereby adapting to diverse working requirements. It is worth noting that during each adjustment of the driving force, only a single gear 2 435 is allowed to rotate to ensure its effective engagement with the gear ring 2 433 and normal transmission performance. This design not only improves the flexibility of the equipment, but also enhances its ability to cope with complex working conditions.

[0094] Furthermore, a positioning shaft 441 is rotatably provided at the central part of one end of the fixed disk 432 away from the gear ring 2 433, and an electric push rod 442 is installed on one side of the positioning shaft 441. The output end of the electric push rod 442 is connected to a transfer block 443 slidably provided on the fixed disk 432. A connecting ring 444 is rotatably installed on the side of the fixed disk 432 away from the gear ring 2 433. A clamping protrusion is provided at one end of the transfer block 443 facing the connecting ring 444, and a matching clamping groove is provided on the inner wall of the connecting ring 444. A connecting shaft 445 is rotatably passed through the transfer block 443 in the axial direction.

[0095] When the electric push rod 442 is started, the adapter block 443 can be driven to move toward the connecting ring 444 until the engaging protrusion is accurately embedded in the engaging groove. Subsequently, the electric push rod 442 continues to drive the connecting ring 444 to rotate, thereby driving the adapter block 443 and the electric push rod 442 to rotate around the positioning shaft 441 as a whole. Once the connecting shaft 445 reaches the position of the same diameter line as the corresponding rotating shaft 434, the driving force disappears and the rotation stops. Through the action of the electric push rod 442, the adapter block 443 is pushed toward the corresponding rotating shaft 434 to ensure that the connecting shaft 445 is coaxial with the rotating shaft 434, and then the two are connected through the docking piece. At this point, the rotation of the connecting shaft 445 will drive the rotating shaft 434 to rotate through the docking piece, thereby prompting the gear 2 435 to drive the gear ring 2 433 to rotate, thereby realizing the driving force adjustment of the rotating disk 41.

[0096] Furthermore, as for the setting of the docking parts, the docking parts include an axial docking slide hole 451 opened on the rotating shaft 434, an electromagnet (not shown in the figure) is embedded inside the axial docking slide hole 451, and the connecting shaft 445 is provided with an iron docking slide rod 452 that can slide and embed into the axial docking slide hole 451 in the direction of the fixed plate 432, and the two are connected by a spring. After the electromagnet is energized to generate magnetic force, it will attract the docking slide rod 452 to slide into the axial docking slide hole 451, so that when the connecting shaft 445 rotates, the rotating shaft 434 is driven to rotate through the docking slide rod 452. On the contrary, when the electromagnet is de-energized, due to the elastic effect of the spring, the docking slide rod 452 will be pushed away from the axial docking slide hole 451, so that the connecting shaft 445 is released from the docking with the rotating shaft 434.

[0097] A mounting plate 46 is fixed inside the crank sleeve 1 on the side of the connecting ring 444 away from the fixing plate 432, and the servo motor 431 is mounted on the mounting plate 46. The output end of the servo motor 431 passes through the axial direction of the mounting plate 46 and is connected to the connecting shaft 445 through a telescopic assembly. Specifically, the telescopic assembly includes an axial telescopic rod 461, one end of which is connected to the connecting shaft 445 through a universal joint, and the other end is also connected to the axial output end of the servo motor 431 through a universal joint.

[0098] It should be noted that the function of the axial telescopic rod 461 is limited to axial telescopic movement, and rotation is not allowed. A gear ring three 462 is installed on one side of the connecting ring 444 , and a control motor 463 is fixed on the mounting plate 46 , whose output shaft 61 is equipped with a gear three 464 meshing with the gear ring three 462 .

[0099] The control motor 463 drives the gear three 464 to rotate, and the meshing of the gear ring three 462 enables the connection ring 444 to rotate synchronously, thereby enabling the connection shaft 445 to dock with different transfer shafts 434 to achieve the purpose of driving force regulation.

[0100] In addition, a detachable battery module is installed at the tail of the crank sleeve 1, and the battery module can adopt a power source type such as a storage battery. The servo motor 431 is connected to the battery module through an electrical connection, and a programmable logic controller (PLC) is built into the tail of the crank sleeve 1. When the operator triggers the corresponding command through the preset operation button on the outside of the crank sleeve 1, the PLC will process these signals and control the operating status of the servo motor 431 and the control motor 463, thereby realizing the control of the motor drive 43 and the adjustment of the rotation force of the driving shaft 3. This design not only improves the convenience and flexibility of operation, but also ensures the reliability and efficiency of the system.

[0101] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric short insulating crank rod, the crank rod comprising a crank sleeve (1) and an insulating shell (2) arranged on the outer wall of the crank sleeve (1), characterized in that: The crank sleeve (1) comprises: A driving shaft (3) is rotatably disposed in the crank sleeve (1) through a bracket and is used to output torque power; A driving part (4) is located in the crank sleeve (1) and is connected to one end of the driving shaft (3), and provides driving force to the driving shaft (3) by electric or manual means; A sliding portion (5) is provided at the other end of the driving shaft (3) and is axially slidably matched with the driving shaft (3) to adjust the axial length of the crank rod; The rotating part (6) is connected to a side of the sliding part (5) away from the driving shaft (3) through a universal joint (7), so that the rotating part (6) rotates around its end; The plum blossom rotating cylinder (8) is arranged on a side of the rotating part (6) away from the sliding part (5), and the external joint is connected to the rotating part (6) through the plum blossom rotating cylinder (8).

2. The electric short insulating crank rod according to claim 1, characterized in that: The sliding part (5) comprises: A sliding shaft (51) axially slides in a sliding cavity provided in the driving shaft (3); an end of the sliding shaft (51) away from the driving shaft (3) is connected to a second bracket (54); The guide sleeve (52) is axially slidably disposed on the inner side wall of the crank sleeve (1) and is connected to the second bracket (54). When the guide sleeve (52) slides axially, the slide shaft (51) is driven to move synchronously through the second bracket (54). The side wall of the guide sleeve (52) is provided with a clearance sliding hole (53) for the first bracket to make way and slide.

3. The electric short insulating crank rod according to claim 2, characterized in that: The rotating part (6) comprises: An output shaft (61) is connected to one end of the sliding shaft (51) via a universal joint (7), and when the sliding shaft (51) rotates, the output shaft (61) is driven to rotate via the universal joint (7); An output sleeve (62) is sleeved on the outside of the output shaft (61); the output shaft (61) is rotatably arranged on the axis of the output sleeve (62) through a bracket; a plum blossom rotating cylinder (8) is rotatably connected to an end of the output sleeve (62) away from the crank sleeve (1), and the plum blossom rotating cylinder (8) is connected to the output shaft (61); Two axial slide rails (63) are symmetrically connected to one side of the crank sleeve (1) along the sliding axis (51); The two guide brackets (64) are symmetrically connected to the outer wall of the output sleeve (62) at positions corresponding to the axial slide rail (63), one end of which is slidably matched with the axial slide rail (63) and drives the output sleeve (62) to rotate with the universal joint (7) as the axis.

4. The electric short insulating crank rod according to claim 3, characterized in that: One end of the guide bracket (64) extends to a position that coincides with a vertical plane where the center of the rotation axis of the universal joint (7) is located.

5. The electric short insulating crank rod according to claim 4, characterized in that: One end of the guide bracket (64) facing the sliding shaft (51) is connected to the axial sliding rail (63) via a transition piece (65), and the transition piece (65) comprises: A steering shaft (651) is rotatably connected to a disc at one end of the guide bracket (64) facing the sliding shaft (51); The axial sliding block (652) is rotatably connected to the side of the steering shaft (651) facing away from the disc, and is slidably disposed in an axial sliding groove provided on the inner side of the axial sliding rail (63).

6. The electric short insulating crank rod according to claim 5, characterized in that: The adapter (65) further comprises: A penetration shaft (653) slides in sequence along the axial direction through the penetration disc, the steering shaft (651), the axial slider (652) and the axial slide rail (63); the axial slide rail (63) is provided with a penetration sliding hole (631) along the axial direction for the penetration shaft (653) to slide; A limit plate (654) is disposed at one end of the threading shaft (653) facing the universal joint (7), and a return spring is connected between the limit plate and the disc to realize an automatic return function of the threading shaft (653); Two plug-in rods (655) are symmetrically arranged on the limiting plate (654); a plurality of through holes (641) for the plug-in rods (655) to pass through are opened in the circumferential direction of the disk; a plurality of fixing holes (632) for fixing the plug-in rods (655) are opened on the inner side wall of the axial slide rail (63) and along the length direction of the axial slide groove.

7. The electric short insulating crank rod according to claim 3, characterized in that: The axial slide rail (63) is designed with an arc-shaped cross section. The crank sleeve (1) is symmetrically provided with two arc-shaped slide grooves (11) on one side of the axial slide rail (63). An arc-shaped plate (12) is slidably installed in the arc-shaped slide grooves (11). The arc-shaped plate (12) is directional and slidably arranged along the two axial slide rails (63).

8. The electric short insulating crank rod according to claim 2, characterized in that: The driving unit (4) comprises a motor drive (43) and a manual drive (42); an end of the driving shaft (3) away from the sliding shaft (51) is equipped with a central rotating disk (41); the motor drive (43) is arranged on a side of the central rotating disk (41) away from the driving shaft (3), and the manual drive (42) is arranged on the other side of the central rotating disk (41); When the motor drive (43) is in operation, the manual drive (42) cannot control the operation of the middle turntable (41); when the motor drive (43) is not in operation, the manual drive (42) controls the operation of the middle turntable (41).

9. The electric short insulating crank handle according to claim 7, characterized in that: A semi-ring plate (13) is provided on one side of the arc-shaped plate (12) facing the plum blossom rotating drum (8), so that a cylindrical structure is formed between the circular ring and the two semi-ring plates (13).

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