Electric wire stripper

Abstract

The invention provides an electric wire stripper which is characterized in that a driving motor is arranged on an insulating handle, and a transmission rod rotatably penetrates through the insulating handle around the axis of the transmission rod; the wire stripping sleeve is provided with a threading through hole, one end, deviating from the driving motor, of the transmission rod extends into the threading through hole, the transmission rod is in driving connection with the wire stripping sleeve, and the hole wall of the threading through hole is provided with a wire stripping knife; the rotating speed adjusting key is arranged on the outer side wall of the insulating handle and is in signal connection with the driving motor so as to adjust the output rotating speed of the driving motor; the driving motor is in driving connection with the input end of the transmission, the output end of the transmission is in driving connection with the transmission rod, and the torque adjusting piece is movably arranged on the insulating handle and matched with the transmission to adjust the transmission ratio of the transmission. Through the technical scheme provided by the invention, the problems of high technical requirements on operators and low wire stripping efficiency of manual wire stripping in related technologies can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution network line maintenance, and in particular to an electric wire stripper. Background Art

[0002] In order to respond to the country's decision-making and deployment to optimize the business environment and improve customer satisfaction, power supply companies have comprehensively improved the "access to electricity" service level, continuously strengthened power supply reliability management, and required non-stop power supply operations for low-voltage projects in the distribution network. With the continuous growth of power load and customer power installation requirements, grassroots power supply units are faced with heavy live-line operation tasks. Therefore, how to use technical means to improve the efficiency of live-line operations and reduce the burden on grassroots employees is a key issue that needs to be urgently resolved in the current distribution network work.

[0003] In the related art, in live operations such as low-voltage distribution network line maintenance or meter installation and power connection, the wire stripping process (i.e., the process of stripping the insulating sheath of the insulated wire) is often indispensable. For example, in the line maintenance work of the power distribution profession, the scene of connecting wires is often encountered, and the connecting wires must first go through the wire stripping process to remove the insulating sheath of the wire of sufficient length before the conductive wire core can be effectively connected. For another example, in the work of installing and connecting the meter, all the inlet and outlet wires of the meter must first be stripped of the insulating sheath of the appropriate length so that the conductive wire core can be connected to the corresponding wiring port of the meter to ensure the normal operation of the meter. Therefore, the wire stripping process appears widely and frequently in various distribution network work, and the efficiency of wire stripping directly affects the overall work rhythm of live operations. At present, the wire stripping process is performed manually by operators using electrician's knives or simple wire strippers.

[0004] However, manual wire stripping in the related art has high technical requirements on the operator and low wire stripping efficiency. Summary of the invention

[0005] The invention provides an electric wire stripper to solve the problem in the related art that manual wire stripping has high technical requirements on operators and low wire stripping efficiency.

[0006] The invention provides an electric wire stripper, which comprises: an insulating handle; a driving assembly, comprising a driving motor and a transmission rod, wherein the driving motor is arranged on the insulating handle, and the transmission rod is rotatably arranged on the insulating handle around its axis; a wire stripping sleeve, which has a wire threading through hole, wherein one end of the transmission rod which is away from the driving motor extends into the wire threading through hole, the transmission rod is drivingly connected to the wire stripping sleeve, and a wire stripping knife is arranged on the hole wall of the wire threading through hole; a speed regulating key, which is arranged on the outer wall of the insulating handle and is connected with the driving motor signal to adjust the output speed of the driving motor; a torque regulating assembly, which comprises a transmission and a torque regulating member, wherein the driving motor is drivingly connected to the input end of the transmission, and the output end of the transmission is drivingly connected to the transmission rod, and the torque regulating member is movably arranged on the insulating handle, and the torque regulating member cooperates with the transmission to adjust the transmission ratio of the transmission.

[0007] Further, the transmission includes: an input member, which is rotatably arranged on the insulating handle around the axis of the transmission rod, the input end of the transmission is arranged on the input member, and a plurality of outer gear rings are arranged on the outer side wall of the input member, the plurality of outer gear rings are arranged along the axial direction of the transmission rod, the plurality of outer gear rings extend along the circumferential direction of the transmission rod, and the radial sizes of the plurality of outer gear rings are different from each other; an output member, which is rotatably arranged on the insulating handle around the axis of the transmission rod, the output end of the transmission is arranged on the output member, and a plurality of inner gear rings are arranged on the inner side wall of the output member, the plurality of inner gear rings are arranged along the axial direction of the transmission rod, the plurality of inner gear rings extend along the circumferential direction of the transmission rod, and the radial sizes of the plurality of inner gear rings are different from each other; wherein the plurality of inner gear rings are arranged one-to-one with the plurality of outer gear rings to form a plurality of pairs of inner gear rings and outer gear rings that can mesh with each other, and the torque adjustment member drives the output member to move along the axial direction of the transmission rod to selectively mesh a pair of inner gear rings and outer gear rings of the transmission.

[0008] Furthermore, the transmission also includes a plurality of planetary gears, which are rotatably arranged on the output member around their axes, the rotation axes of the planetary gears are parallel to the axis of the transmission rod, the plurality of planetary gears are meshed with the plurality of inner gear rings one by one, and the plurality of planetary gears are arranged with the plurality of outer gear rings one by one to form a plurality of pairs of planetary gears and outer gear rings that can mesh with each other, and the torque adjustment member drives the output member to move along the axial direction of the transmission rod to selectively make a pair of planetary gears and outer gear rings of the transmission mesh; and / or, the transmission also includes a reset spring, which is sleeved on the transmission rod, and the two ends of the reset spring are respectively abutted against the output member and the insulating handle to apply a reset force to the output member to move in a direction close to the wire stripping sleeve.

[0009] Further, the torque adjusting member includes an adjusting cylinder, which is rotatably mounted on the insulating handle around the axis of the insulating handle, and a transmission structure is arranged between the adjusting cylinder and the output member. When the adjusting cylinder rotates, the adjusting cylinder drives the output member to move along the axial direction of the transmission rod through the transmission structure; and / or, a plurality of torque scales are arranged on the torque adjusting member, and the plurality of torque scales are arranged along the circumference of the insulating handle, and a pointer mark is arranged on the insulating handle, and the pointer mark can be selectively aligned with one of the plurality of torque scales.

[0010] Furthermore, a chamfered structure is provided on the end wall of the stripping sleeve at one end away from the insulating handle; and / or a protective coating is provided on the hole wall of the wire through hole.

[0011] Furthermore, the insulating handle comprises: a hard inner shell, a driving motor is arranged in the hard inner shell, and a transmission rod is rotatably arranged around its axis through the hard inner shell; and an insulating outer shell is sleeved on the outer side of the hard inner shell.

[0012] Furthermore, the insulating handle adopts a straight handle structure.

[0013] Furthermore, a mounting groove is provided on the outer wall of the wire stripping sleeve, and the mounting groove is connected to the wire threading hole. The wire stripping knife includes: a blade, which is movably arranged in the mounting groove and extends into the wire threading hole, and the blade has a strip hole extending in the radial direction of the wire threading hole; an adjusting screw, which is passed through the strip hole and connected to the wire stripping sleeve.

[0014] Furthermore, a first curved surface is provided at the bottom of the mounting groove, and the rotation axis of the first curved surface is parallel to the axis of the threading through hole. A cutting opening connected to the threading through hole is provided at the bottom of the mounting groove, and the blade extends into the threading through hole through the cutting opening. The blade has a second curved surface adapted to the first curved surface, so that the blade can be slidably arranged in the mounting groove along the first curved surface.

[0015] Furthermore, the electric wire stripper also includes a locking piece, which is movably arranged on the wire stripping sleeve, and has a locked state and an unlocked state. When the locking piece is in the locked state, the locking piece limits the movement of the wire stripping sleeve relative to the transmission rod, and when the locking piece is in the unlocked state, the locking piece allows the wire stripping sleeve to move relative to the transmission rod.

[0016] By applying the technical solution of the present invention, the electric wire stripper includes an insulating handle, a drive component, a stripping sleeve, a speed adjustment key and a torque adjustment component, which electrically rotate to strip the insulation of the wire. Electrification technology is introduced to replace manual wire stripping with electric wire stripping, thereby solving the problems of low wire stripping efficiency, low safety, unstable process, etc. in current manual wire stripping. At the same time, the insulation, portability and versatility of the equipment are ensured, and the efficiency of the wire stripping process in live distribution network operations is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of an electric wire stripper provided according to an embodiment of the present invention is shown;

[0019] Figure 2 A schematic structural diagram of an insulating handle and a speed adjustment key of an electric wire stripper provided in an embodiment of the present invention is shown;

[0020] Figure 3 A schematic structural diagram of an electric wire stripper according to another perspective is shown;

[0021] Figure 4 A cross-sectional view of a wire stripping sleeve of an electric wire stripper provided according to an embodiment of the present invention is shown;

[0022] Figure 5 A schematic structural diagram of an insulating handle, a driving assembly, and a torque adjustment assembly of an electric wire stripper provided in an embodiment of the present invention is shown;

[0023] Figure 6 A cross-sectional view of a wire stripping sleeve and a transmission rod of an electric wire stripper provided according to an embodiment of the present invention is shown;

[0024] Figure 7 A schematic structural diagram of a wire stripping sleeve and a transmission rod of an electric wire stripper provided according to an embodiment of the present invention is shown.

[0025] The above drawings include the following reference numerals:

[0026] 10. Insulated handle; 11. Lighting element; 12. Battery element; 13. Power indicator; 14. Pointer mark;

[0027] 20. driving assembly; 21. driving motor; 22. transmission rod;

[0028] 40. Wire stripping sleeve; 41. Wire stripping knife; 411. Blade; 4111. Strip hole; 412. Adjusting screw; 43. Mounting slot; 431. First arc surface; 432. Cutting opening; 433. Length scale; 44. Wire threading hole;

[0029] 50. Speed ​​adjustment key; 51. Speed ​​increase key; 52. Speed ​​decrease key;

[0030] 60. Torque adjustment assembly; 61. Transmission; 611. Input member; 6111. Outer gear ring; 612. Output member; 6121. Inner gear ring; 613. Planetary gear; 62. Torque adjustment member; 621. Adjustment cylinder; 622. Torque scale; 63. Return spring; 64. Transmission structure; 641. Transmission column; 642. Transmission inclined plane;

[0031] 70. Locking piece. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that the manual wire stripping in the related art has the following disadvantages:

[0034] (1) Low stripping efficiency: The insulated wire sheath (commonly known as insulation skin) is made of high-strength polyethylene material, which has a large thickness and hardness, which is not conducive to manual cutting and stripping. It requires operators to have skilled skills and sufficient physical strength. The stripping speed is slow. This shortcoming is particularly prominent when encountering large-scale line construction and meter installation and power connection;

[0035] (2) Low safety: The electrician's knife or wire stripper used in the manual wire stripping process has a sharp blade, which can easily scratch the operator's hands. In addition, when the temperature drops in winter, the insulation will harden, and the operator's body will be stiff, so personal injury accidents occur more frequently;

[0036] (3) Unstable process: In standardized work scenarios, the process level of wire stripping is relatively high (for example, in the work of installing and connecting the meter, the wiring port of the meter is designed and manufactured according to standard specifications and dimensions. The meter input and output wires need to be stripped of the standard length of insulation to be reliably connected to the wiring port. If the wire stripping is too long, there will be exposed live parts in the meter input and output wires, which is prone to short circuit faults. If the wire stripping is too short, the meter input and output wires cannot be tightly connected to the meter wiring port, which is not conducive to the stable and reliable operation of the meter, and may even lead to inaccurate measurement and cause direct economic losses). In addition, for the wiring work of the metering device, it is often required to ensure that the stripping depth does not damage the wire core during the stripping process, so that the wire core is intact after stripping. The manual stripping method is affected by human subjective judgment errors and skill level limitations, making it difficult for manual operation to control the strength, speed and accuracy of the stripping process. However, errors are prone to occur, and it is difficult to ensure that the stripping process does not damage the wire core. If the stripping does not meet the process requirements, the entire stripping work will fail, which not only means that the wire needs to be stripped again, reducing work efficiency, but also causing material loss and increasing cost expenditure.

[0037] like Figures 1 to 7 As shown, an embodiment of the present invention provides an electric wire stripper, which includes an insulating handle 10, a driving assembly 20, a wire stripping sleeve 40, a speed adjustment key 50 and a torque adjustment assembly 60. The driving assembly 20 includes a driving motor 21 and a transmission rod 22. The driving motor 21 is arranged on the insulating handle 10, and the transmission rod 22 is rotatably arranged around its axis through the insulating handle 10. The wire stripping sleeve 40 has a threading through hole 44, and one end of the transmission rod 22 away from the driving motor 21 extends into the threading through hole 44. The transmission rod 22 is connected to the wire stripping sleeve 40 for driving, and the threading A wire stripping knife 41 is arranged on the hole wall of the through hole 44, the speed adjustment key 50 is arranged on the outer wall of the insulating handle 10 and is connected to the signal of the drive motor 21 to adjust the output speed of the drive motor 21, the torque adjustment assembly 60 includes a transmission 61 and a torque adjustment member 62, the drive motor 21 is drivingly connected to the input end of the transmission 61, the output end of the transmission 61 is drivingly connected to the transmission rod 22, the torque adjustment member 62 is movably arranged on the insulating handle 10, and the torque adjustment member 62 cooperates with the transmission 61 to adjust the transmission ratio of the transmission 61.

[0038] The electric wire stripper provided in this embodiment includes an insulating handle 10, a driving assembly 20, a stripping sleeve 40, a speed adjustment key 50 and a torque adjustment assembly 60. The wire to be stripped is inserted into the wire threading hole 44 from the end of the stripping sleeve 40 away from the insulating handle 10, so that the stripping knife 41 cuts the insulation skin of the wire along the axial direction of the wire, and then the driving motor 21 drives the transmission rod 22 to rotate around its axis, and the transmission rod 22 drives the stripping sleeve 40 to rotate, so that the stripping knife 41 cuts the insulation skin of the wire along the circumference of the wire, and the speed adjustment key 50 is used to adjust the torque. 0 adjusts the output speed of the drive motor 21, and uses the torque adjusting member 62 to adjust the transmission ratio of the transmission 61 to indirectly adjust the output torque of the transmission rod 22, so that the torque and speed can be adjusted according to actual needs. When the insulation layer of the wire is aged and hardened, it can be adjusted to a higher torque to increase the cutting force. Since the stripping speed and rotation torque of the electric wire stripper can be adjusted, the efficiency of the wire stripping process can be effectively improved, and the electric wire stripping method replaces the manual wire stripping method, avoiding the influence of the limitations of the manual skill level on the wire stripping effect, and reducing the technical requirements for the operator.

[0039] Furthermore, during the wire stripping process, the operator holds the insulating handle 10 and can utilize the insulating property of the insulating handle 10 to improve the efficiency and safety of the wire stripping process during the operator's live network operation.

[0040] In this embodiment, the speed adjustment key 50 includes an increase speed key 51 and a decrease speed key 52. ​​Pressing the increase speed key 51 can increase the speed of the drive motor 21, thereby improving work efficiency. Pressing the decrease speed key 52 can reduce the speed of the drive motor 21, thereby ensuring construction precision.

[0041] like Figure 5 As shown, the transmission 61 includes an input member 611 and an output member 612, the input member 611 is rotatably arranged on the insulating handle 10 around the axis of the transmission rod 22, the input end of the transmission 61 is arranged on the input member 611, a plurality of outer gear rings 6111 are arranged on the outer side wall of the input member 611, the plurality of outer gear rings 6111 are arranged along the axial direction of the transmission rod 22, the plurality of outer gear rings 6111 extend along the circumferential direction of the transmission rod 22, the output member 612 is rotatably arranged on the insulating handle 10 around the axis of the transmission rod 22, and the output end of the transmission 61 is arranged on the output member 612. On the inner side wall of the output member 612, a plurality of inner gear rings 6121 are arranged along the axial direction of the transmission rod 22, and the plurality of inner gear rings 6121 extend along the circumferential direction of the transmission rod 22, wherein the plurality of inner gear rings 6121 and the plurality of outer gear rings 6111 are arranged one by one in correspondence to form a plurality of pairs of inner gear rings 6121 and outer gear rings 6111 that can mesh with each other, and the torque adjustment member 62 drives the output member 612 to move along the axial direction of the transmission rod 22, so as to selectively make a pair of inner gear rings 6121 and outer gear rings 6111 of the transmission 61 mesh with each other.

[0042] Specifically, multiple inner gear rings 6121 and multiple outer gear rings 6111 are arranged in a one-to-one correspondence to form multiple pairs of inner gear rings 6121 and outer gear rings 6111 that can mesh with each other, which means that each inner gear ring 6121 can mesh with one outer gear ring 6111 among the multiple outer gear rings 6111, and the outer gear rings 6111 meshed with the multiple inner gear rings 6121 are different from each other, so that the multiple inner gear rings 6121 and the multiple outer gear rings 6111 form multiple pairs of inner gear rings 6121 and outer gear rings 6111, and each pair of inner gear rings 6121 and outer gear rings 6111 can mesh with each other. Since the radial dimensions of the multiple outer gear rings 6111 are different from each other and the radial dimensions of the multiple inner gear rings 6121 are different from each other, the transmission ratios of each pair of inner gear rings 6121 and outer gear rings 6111 are different. The transmission 61 can only select one pair of inner gear rings 6121 and outer gear rings 6111 to mesh with each other, so as to utilize the torque adjustment member 62 to drive the output member 612 to move along the axial direction of the transmission rod 22, so as to selectively make a pair of inner gear rings 6121 and outer gear rings 6111 of the transmission 61 mesh with each other, so as to change the transmission ratio between the input end and the output end of the transmission 61.

[0043] The meshing of a pair of inner gear rings 6121 and outer gear rings 6111 includes the following two embodiments:

[0044] (1) The inner gear ring 6121 and the outer gear ring 6111 are directly meshed;

[0045] (2) The inner gear ring 6121 and the outer gear ring 6111 are respectively meshed with the intermediate transmission gear, so that the inner gear ring 6121 and the outer gear ring 6111 are indirectly meshed through the intermediate transmission gear.

[0046] like Figure 5 As shown, the transmission 61 also includes a plurality of planetary gears 613, which are rotatably arranged on the output member 612 around their axes, and the rotation axes of the planetary gears 613 are parallel to the axis of the transmission rod 22. The plurality of planetary gears 613 are meshed with the plurality of inner gear rings 6121 in a one-to-one correspondence, and the plurality of planetary gears 613 are arranged with the plurality of outer gear rings 6111 in a one-to-one correspondence to form a plurality of pairs of planetary gears 613 and outer gear rings 6111 that can mesh with each other, and the torque adjustment member 62 drives the output member 612 to move along the axial direction of the transmission rod 22 to selectively enable a pair of planetary gears 613 and the outer gear ring 6111 of the transmission 61 to mesh with each other.

[0047] Specifically, multiple planetary gears 613 are meshed with multiple inner rings 6121 in a one-to-one correspondence, which means that each inner ring 6121 can mesh with one of the multiple planetary gears 613, and the planetary gears 613 meshed with the multiple inner rings 6121 are different from each other, so that the multiple inner rings 6121 and the multiple planetary gears 613 form multiple pairs of inner rings 6121 and planetary gears 613. When the torque adjusting member 62 is used to drive the output member 612 to move along the axial direction of the transmission rod 22, the multiple pairs of inner rings 6121 and planetary gears 613 move synchronously along the axial direction of the transmission rod 22, and each pair of inner rings 6121 and planetary gears 613 remain in a meshing state.

[0048] In addition, multiple planetary gears 613 are arranged in a one-to-one correspondence with multiple outer ring gears 6111 to form multiple pairs of planetary gears 613 and outer ring gears 6111 that can mesh with each other, which means that each outer ring gear 6111 can mesh with one of the multiple planetary gears 613, and the planetary gears 613 meshed with the multiple outer ring gears 6111 are different from each other, so that the multiple outer ring gears 6111 and multiple pairs of inner ring gears 6121 and planetary gears 613 form multiple groups of outer ring gears 6111, inner ring gears 6121 and planetary gears 613. In each set of outer ring gear 6111, inner ring gear 6121 and planetary gear 613, the outer ring gear 6111 is meshed with the planetary gear 613, and the planetary gear 613 is meshed with the inner ring gear 6121, so that the outer ring gear 6111 drives the inner ring gear 6121 through the planetary gear 613. Since the radial dimensions of the multiple outer ring gears 6111 are different from each other, the radial dimensions of the multiple inner ring gears 6121 are different from each other, so that the transmission ratios of each set of outer ring gear 6111, inner ring gear 6121 and planetary gear 613 are different from each other, the transmission 61 can only select a pair of outer ring gear 6111 and planetary gear 613 to mesh, and use the torque adjustment member 62 to drive the output member 612 to move along the axial direction of the transmission rod 22, so as to selectively make a set of outer ring gear 6111, inner ring gear 6121 and planetary gear 613 of the transmission 61 change the transmission ratio between the input end and the output end of the transmission 61.

[0049] like Figure 5 As shown, the transmission 61 further includes a reset spring 63, which is sleeved on the transmission rod 22, and the two ends of the reset spring 63 are respectively in contact with the output member 612 and the insulating handle 10 to apply a reset force to the output member 612 to move in a direction close to the stripping sleeve 40. With the reset spring 63, after the output member 612 is driven to move in a direction away from the stripping sleeve 40 by the torque adjusting member 62, the torque adjusting member 62 is reversely operated, and the output member 612 can move in a direction close to the stripping sleeve 40 under the action of the reset force of the reset spring 63.

[0050] like Figure 2As shown, the torque adjusting member 62 includes an adjusting cylinder 621, which is rotatably sleeved on the insulating handle 10 around the axis of the insulating handle 10, and a transmission structure 64 is provided between the adjusting cylinder 621 and the output member 612. When the adjusting cylinder 621 rotates, the adjusting cylinder 621 drives the output member 612 to move along the axial direction of the transmission rod 22 through the transmission structure 64. When the output member 612 is driven to move along the axial direction of the transmission rod 22 by the torque adjusting member 62, the adjusting cylinder 621 is rotated so that the adjusting cylinder 621 drives the output member 612 to move along the axial direction of the transmission rod 22 through the transmission structure 64. The operator rotates the adjusting cylinder 621 with the thumb while holding the insulating handle 10, which is ergonomic and convenient for the operator to operate.

[0051] like Figure 5 As shown, the transmission structure 64 includes a transmission column 641 and a transmission bevel 642. The transmission column 641 is arranged on the adjustment cylinder 621. The transmission column 641 is arranged parallel to the insulating handle 10. The transmission bevel 642 is arranged on the side of the output member 612 away from the drive motor 21. The end of the transmission column 641 facing the drive motor 21 can be slidably matched with the transmission bevel 642. Specifically, the adjustment cylinder 621 is rotated to make the transmission column 641 rotate around the axis of the insulating handle 10, and the transmission column 641 is slidably matched with the transmission bevel 642 to drive the output member 612 to move along the axial direction of the transmission rod 22.

[0052] like Figure 3 As shown, the torque adjusting member 62 is provided with a plurality of torque scales 622, and the plurality of torque scales 622 are arranged along the circumference of the insulating handle 10. The insulating handle 10 is provided with a pointer mark 14, and the pointer mark 14 can be selectively aligned with one of the plurality of torque scales 622. In the process of operating the torque adjusting member 62 to adjust the torque, the pointer mark 14 can be selectively aligned with one of the plurality of torque scales 622 as a reference for the adjustment operation, so as to improve the adjustment accuracy.

[0053] In this embodiment, a chamfered structure is provided on the end wall of the stripping sleeve 40 at the end facing away from the insulating handle 10 to prevent the insulation layer of the wire from being damaged or the wire core from being scratched during the plugging and unplugging process.

[0054] In this embodiment, a protective coating is provided on the hole wall of the threading through hole 44 to prevent the insulation layer of the wire from being damaged or the wire core from being scratched during the plugging and unplugging process. Specifically, the protective coating is a soft plastic coating.

[0055] In this embodiment, the insulating handle 10 includes a hard inner shell and an insulating outer shell, the driving motor 21 is disposed in the hard inner shell, the transmission rod 22 is rotatably disposed in the hard inner shell around its axis, and the insulating outer shell is sleeved on the outer side of the hard inner shell. By utilizing the structural strength of the hard inner shell and the insulating performance of the insulating outer shell, the insulating handle 10 has the advantages of good insulation, good structural strength and low processing cost.

[0056] In this embodiment, the hard inner shell is made of polyvinyl chloride, which has high hardness and low processing difficulty, and the insulating outer shell is made of vulcanized rubber. An anti-slip structure is provided on the outer wall of the insulating outer shell. Specifically, the anti-slip structure is coated with a skin-friendly material that is anti-slip, dirt-resistant and corrosion-resistant, so as to ensure the insulation performance of the grip while meeting the durability and comfort requirements.

[0057] like Figure 1 As shown, the insulating handle 10 adopts a straight handle structure, and can be directly inserted into the wire during actual operation, which is more suitable for use in a narrow environment.

[0058] like Figure 3 , Figure 4 as well as Figure 7 As shown, the outer wall of the wire stripping sleeve 40 is provided with a mounting groove 43, which is connected to the wire threading hole 44. The wire stripping knife 41 includes a blade 411 and an adjusting screw 412. The blade 411 is movably arranged in the mounting groove 43 and extends into the wire threading hole 44. The blade 411 has a strip hole 4111 extending in the radial direction of the wire threading hole 44. The adjusting screw 412 is passed through the strip hole 4111 and connected to the wire stripping sleeve 40. By loosening the adjusting screw 412, the blade 411 is moved, the size of the blade 411 extending into the wire threading hole 44 is changed, and then the adjusting screw 412 is re-tightened to adjust the step depth of the blade 411, improve the cutting accuracy, control the wire stripping accuracy, avoid damaging the wire core due to the thickness error of the insulation layer, and adapt to the thickness tolerance of the insulation layer of wires from different manufacturers and different batches.

[0059] In actual use, the step depth of the blade 411 should be less than the thickness of the insulating layer. The blade 411 cuts the outer surface of the insulating layer, and then the inner surface of the insulating layer is split along the cutting gap under the action of the cutting gap, thereby cutting the insulating layer.

[0060] Specifically, the blade 411 is made of high-speed steel material. The blade 411 can be rotated to strip off the insulation layer of the wire. The blade 411 has the characteristics of high hardness, high wear resistance and high temperature resistance.

[0061] like Figure 4As shown, the bottom of the mounting groove 43 is provided with a first arc surface 431, the rotation axis of the first arc surface 431 is parallel to the axis of the threading through hole 44, the bottom of the mounting groove 43 is provided with a cutting opening 432 connected to the threading through hole 44, the blade 411 extends into the threading through hole 44 through the cutting opening 432, and the blade 411 has a second arc surface adapted to the first arc surface 431, so that the blade 411 is slidably arranged in the mounting groove 43 along the first arc surface 431. The above-mentioned cooperation between the first arc surface 431 and the second arc surface allows the blade 411 to move along the first arc surface 431, which can improve the compactness of the structure compared to linear movement.

[0062] like Figure 3 As shown, the electric wire stripper also includes a locking piece 70, which is movably disposed on the wire stripping sleeve 40. The locking piece 70 has a locked state and an unlocked state. When the locking piece 70 is in the locked state, the locking piece 70 limits the movement of the wire stripping sleeve 40 relative to the transmission rod 22. When the locking piece 70 is in the unlocked state, the locking piece 70 allows the movement of the wire stripping sleeve 40 relative to the transmission rod 22. By adjusting the length of the transmission rod 22 inserted into the threading through hole 44, the length of the wire inserted into the threading through hole 44 can be limited, thereby controlling the length of the insulation stripping of the wire by the wire stripping sleeve 40 to adapt to different application scenarios.

[0063] In this embodiment, the wire through hole 44 of the stripping sleeve 40 has sizes of 16 mm, 25 mm, 35 mm, 50 mm, 70 mm, 95 mm, and 120 mm, which can be applicable to wires of common wire diameters in distribution network operations.

[0064] like Figure 6 As shown, a plurality of length scales 433 arranged along the axial direction of the threading hole 44 are provided on the groove wall of the mounting groove 43. In the process of adjusting the length of the transmission rod 22 inserted into the threading hole 44, the end of the transmission rod 22 away from the insulating handle 10 can be selectively aligned with one of the plurality of length scales 433 as a reference for the adjustment operation, so as to improve the adjustment accuracy.

[0065] In addition, the electric wire stripper also includes a latching piece arranged at the output end of the transmission 61, and the latching piece has a latching state and a disassembly state. When the latching piece is in the latching state, the latching piece is connected to the end of the transmission rod 22 away from the wire stripping sleeve 40. When the latching piece is in the disassembly state, the latching piece is separated from the end of the transmission rod 22 away from the wire stripping sleeve 40, so that the transmission rod 22 can be replaced by operating the latching piece.

[0066] like Figure 1 As shown, the electric wire stripper also includes a lighting component 11 arranged on the top of the insulating handle 10. The lighting component 11 includes two diagonally arranged LED lamp beads, which ensure the lighting brightness and no shadow during operation under the premise of low energy consumption.

[0067] like Figure 1 and Figure 5 As shown, the electric wire stripper also includes a battery component 12 and a power display component 13. The battery component 12 is arranged in the insulating handle 10. The battery component 12 is electrically connected to the drive motor 21 and the power display component 13 respectively. The power display component 13 is arranged on the outer wall of the insulating handle 10. The power display component 13 is used to display the power information of the battery component 12 in real time to assist the operator to control the work progress.

[0068] The application of the electric wire stripper provided in this embodiment can increase the efficiency of single wire stripping by an average of 33%, and the efficiency of centralized meter stripping (12-bit meter box) by an average of 45%. The device has been promoted and applied at the work site. Its portable, labor-saving, fast, universal, durable and safe characteristics help marketing and metering operators effectively reduce work intensity and improve work efficiency. When the wire insulation skin hardens due to temperature drop, heat aging, the advantages brought by electric stripping will be more obvious. At the same time, the use of this device can more easily control the stripping length and incision quality. Compared with manual wire strippers, it requires lower physical strength and technical level of the staff, and the operation is not easy to be tired. After testing and inspection, this device can be applied to common types of wires in distribution network work, with a maximum weight of 479g, an insulation level of 1kV, and the stripping process meets the predetermined design goals.

[0069] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0070] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0071] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0072] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0073] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric wire stripper, characterized in that: The electric wire stripper comprises: Insulated handle (10); A drive assembly (20) comprising a drive motor (21) and a transmission rod (22), wherein the drive motor (21) is arranged on the insulating handle (10), and the transmission rod (22) is rotatably arranged around its axis and penetrates the insulating handle (10); The wire stripping sleeve (40) has a wire threading hole (44), one end of the transmission rod (22) facing away from the driving motor (21) extends into the wire threading hole (44), the transmission rod (22) is drivingly connected to the wire stripping sleeve (40), and a wire stripping knife (41) is arranged on the hole wall of the wire threading hole (44); A speed adjustment key (50), the speed adjustment key (50) being arranged on the outer side wall of the insulating handle (10) and being connected to the signal of the drive motor (21) so as to adjust the output speed of the drive motor (21); The torque adjustment assembly (60) comprises a transmission (61) and a torque adjustment member (62), wherein the drive motor (21) is drivingly connected to the input end of the transmission (61), the output end of the transmission (61) is drivingly connected to the transmission rod (22), and the torque adjustment member (62) is movably arranged on the insulating handle (10), and the torque adjustment member (62) cooperates with the transmission (61) to adjust the transmission ratio of the transmission (61).

2. The electric wire stripper according to claim 1, characterized in that: The transmission (61) comprises: An input member (611) is rotatably arranged on the insulating handle (10) around the axis of the transmission rod (22); the input end of the transmission (61) is arranged on the input member (611); a plurality of outer gear rings (6111) are arranged on the outer side wall of the input member (611); the plurality of outer gear rings (6111) are arranged along the axial direction of the transmission rod (22); the plurality of outer gear rings (6111) extend along the circumferential direction of the transmission rod (22); and the radial dimensions of the plurality of outer gear rings (6111) are different from each other; An output member (612) is rotatably arranged on the insulating handle (10) around the axis of the transmission rod (22); the output end of the transmission (61) is arranged on the output member (612); a plurality of inner gear rings (6121) are arranged on the inner side wall of the output member (612); the plurality of inner gear rings (6121) are arranged along the axial direction of the transmission rod (22); the plurality of inner gear rings (6121) extend along the circumferential direction of the transmission rod (22); and the radial dimensions of the plurality of inner gear rings (6121) are different from each other; Wherein, a plurality of inner gear rings (6121) and a plurality of outer gear rings (6111) are arranged in one-to-one correspondence to form a plurality of pairs of inner gear rings (6121) and outer gear rings (6111) that can mesh with each other, and the torque adjustment member (62) drives the output member (612) to move along the axial direction of the transmission rod (22) to selectively enable a pair of inner gear rings (6121) and the outer gear rings (6111) of the transmission (61) to mesh with each other.

3. The electric wire stripper according to claim 2, characterized in that: The transmission (61) further comprises: a plurality of planetary gears (613), the planetary gears (613) being rotatably arranged on the output member (612) about their axes, the rotation axes of the planetary gears (613) being parallel to the axes of the transmission rod (22), the plurality of planetary gears (613) being meshed with the plurality of inner gear rings (6121) in a one-to-one correspondence, the plurality of planetary gears (613) being arranged with the plurality of outer gear rings (6111) in a one-to-one correspondence to form a plurality of pairs of the planetary gears (613) and the outer gear rings (6111) that can mesh with each other, the torque adjustment member (62) driving the output member (612) to move along the axial direction of the transmission rod (22) to selectively mesh a pair of the planetary gears (613) and the outer gear rings (6111) of the transmission (61); and / or A reset spring (63), wherein the reset spring (63) is sleeved on the transmission rod (22), and two ends of the reset spring (63) are respectively in contact with the output member (612) and the insulating handle (10) to apply a reset force to the output member (612) to move in a direction away from the stripping sleeve (40).

4. The electric wire stripper according to claim 2, characterized in that: The torque adjustment member (62) comprises an adjustment cylinder (621), the adjustment cylinder (621) being rotatably sleeved on the insulating handle (10) around the axis of the insulating handle (10), a transmission structure (64) being provided between the adjustment cylinder (621) and the output member (612), and when the adjustment cylinder (621) rotates, the adjustment cylinder (621) drives the output member (612) to move along the axial direction of the transmission rod (22) via the transmission structure (64); and / or, The torque adjusting member (62) is provided with a plurality of torque scales (622), and the plurality of torque scales (622) are arranged along the circumference of the insulating handle (10). The insulating handle (10) is provided with a pointer mark (14), and the pointer mark (14) can be selectively aligned with one of the plurality of torque scales (622).

5. The electric wire stripper according to claim 1, characterized in that: A chamfered structure is provided on the end wall of the stripping sleeve (40) at one end facing away from the insulating handle (10); and / or, A protective coating is provided on the hole wall of the threading through hole (44).

6. The electric wire stripper according to claim 1, characterized in that: The insulating handle (10) comprises: A hard inner shell, wherein the drive motor (21) is arranged in the hard inner shell, and the transmission rod (22) is rotatably arranged around its axis through the hard inner shell; The insulating shell is sleeved on the outer side of the hard inner shell.

7. The electric wire stripper according to claim 1, characterized in that: The insulating handle (10) adopts a straight handle structure.

8. The electric wire stripper according to claim 1, characterized in that: The outer wall of the wire stripping sleeve (40) is provided with a mounting groove (43), the mounting groove (43) is connected to the wire threading through hole (44), and the wire stripping knife (41) comprises: A blade (411) is movably disposed in the mounting groove (43) and extends into the threading hole (44), wherein the blade (411) has a strip-shaped hole (4111) extending in a radial direction of the threading hole (44); An adjusting screw (412) is inserted into the strip-shaped hole (4111) and connected to the wire stripping sleeve (40).

9. The electric wire stripper according to claim 8, characterized in that: The bottom of the mounting groove (43) is provided with a first arcuate surface (431), the rotation axis of the first arcuate surface (431) is parallel to the axis of the threading through hole (44), the bottom of the mounting groove (43) is provided with a cutting opening (432) connected to the threading through hole (44), the blade (411) extends into the threading through hole (44) through the cutting opening (432), and the blade (411) has a second arcuate surface adapted to the first arcuate surface (431), so that the blade (411) can be slidably arranged in the mounting groove (43) along the first arcuate surface (431).

10. The electric wire stripper according to claim 1, characterized in that: The electric wire stripper further comprises a locking member (70), wherein the locking member (70) is movably arranged on the wire stripping sleeve (40), and the locking member (70) has a locked state and an unlocked state. When the locking member (70) is in the locked state, the locking member (70) restricts the movement of the wire stripping sleeve (40) relative to the transmission rod (22); when the locking member (70) is in the unlocked state, the locking member (70) allows the movement of the wire stripping sleeve (40) relative to the transmission rod (22).

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