Efficient cable shearing device for electric power

Abstract

The utility model relates to the technical field of cable shearing tools, in particular to a high-efficiency cable shearing device for electric power, which comprises a tool bit, the tool bit comprises a tool rest assembly, a movable tool bit is slidably mounted in the tool rest assembly, and the bottom end of the movable tool bit is connected with a driving assembly; the driving assembly comprises a hydraulic cylinder, and handles are arranged on the side face and the bottom face of the hydraulic cylinder. The length of the handle can be changed through the anti-skid sleeve and the connecting rod and sliding of the anti-skid sleeve along the connecting rod, the external thread sleeve is in threaded connection with the containing groove, the external thread sleeve and the elastic friction piece can slide along with the anti-skid sleeve, and the anti-skid sleeve can be driven to move in the axis direction of the connecting rod through the anti-skid sleeve. Due to the friction force between the elastic friction plate and the connecting rod, the external thread sleeve and the elastic friction plate are kept static, along with the reduction of the inner diameter of the conical sleeve, the clamping plate is extruded inwards, the friction force between the elastic friction plate and the connecting rod is increased, and the anti-sliding sleeve is prevented from sliding in the working process.

Description

Technical Field

[0001] The utility model relates to the technical field of cable cutting tools, in particular to a high-efficiency cable cutting device for electric power. Background Art

[0002] A cable is a device for transmitting electrical energy or signals. It's typically composed of several strands or groups of conductors twisted together. Each strand is insulated and often twisted around a core. The entire cable is covered with a highly insulating sheath. Due to the cable's large diameter and high core strength, specialized cable cutters are required for cable cutting during power construction.

[0003] In the prior art, cable cutters typically consist of two cutting heads, two operating handles, and a transmission mechanism. The transmission mechanism can be a ratchet or a manual hydraulic cylinder. To use, the cable is placed between the two heads, and one of the operating handles is pressed. The transmission mechanism drives one cutting head toward the other, cutting the cable. To facilitate operation and save effort, the operating handle is typically divided into an operating rod and a sliding sleeve. The sliding sleeve can slide along the operating rod, extending the length of the operating handle and increasing the lever arm. However, in actual use, the sliding sleeve is prone to slipping during cable cutting, affecting operation. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a high-efficiency cable cutting device for electric power.

[0005] The technical solution of the utility model is:

[0006] A high-efficiency cable cutting device for electric power, comprising:

[0007] The cutter head comprises a cutter holder assembly, a movable cutter head is slidably mounted in the cutter holder assembly, a rotating cutter head is rotatably mounted on the front end of the cutter holder assembly, and a driving assembly is connected to the bottom end of the movable cutter head;

[0008] The drive assembly includes a hydraulic cylinder, a piston rod is slidably installed in the hydraulic cylinder, the movable cutter head is fixedly installed on the top of the piston rod, a plunger is provided on the side of the hydraulic cylinder, the plunger is used to drive the piston rod to move, and handles are provided on the side and bottom of the hydraulic cylinder. The handles on the side of the hydraulic cylinder are rotatably connected to the hydraulic cylinder and the plunger;

[0009] The handle includes a connecting rod, an anti-slip sleeve is slidably installed on the outside of the connecting rod, a conical sleeve is provided on the top of the anti-slip sleeve and located on the outside of the connecting rod, a receiving groove is provided on the inner side of the head of the conical sleeve, a locking assembly is provided in the receiving groove, and the locking assembly and the conical sleeve cooperate to limit the movement of the anti-slip sleeve.

[0010] Preferably, a mounting sleeve is provided on the bottom surface of the hydraulic cylinder, and the connecting rod of the handle below is fixedly connected to the mounting sleeve.

[0011] Preferably, a rotating frame is provided on the side of the hydraulic cylinder, the end of the connecting rod of the handle on the side is rotatably connected to the rotating frame, and the plunger is located between the rotating frame and the bottom surface of the hydraulic cylinder.

[0012] Preferably, the inner diameter of the tapered sleeve gradually decreases from bottom to top, and the inner diameter of the tapered sleeve is the largest near the anti-slip sleeve.

[0013] Preferably, a plurality of annular protrusions are provided on the bottom of the outer side of the anti-slip cover, and a plurality of strip-shaped protrusions are provided on the top of the outer side of the anti-slip cover.

[0014] Preferably, the locking assembly includes an externally threaded sleeve, which is threadedly connected to the inner wall of the accommodating groove. A plurality of clips are evenly provided on the top of the externally threaded sleeve, and gaps are left between the clips.

[0015] Preferably, an elastic friction member is provided on the inner side of the externally threaded sleeve and the clip, and the elastic friction member wraps the connecting rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model uses the anti-slip sleeve and the connecting rod to slide the anti-slip sleeve along the connecting rod, so that the length of the handle can be changed. Since the external threaded sleeve and the accommodating groove are threadedly connected, the external threaded sleeve and the elastic friction member can slide with the anti-slip sleeve. The anti-slip sleeve can be driven to move along the axial direction of the connecting rod through the anti-slip sleeve, and the tapered sleeve can be driven to move together. Due to the friction between the elastic friction plate and the connecting rod, the external threaded sleeve and the elastic friction plate remain stationary. As the inner diameter of the tapered sleeve decreases, the splint will be squeezed inward, increasing the friction between the elastic friction plate and the connecting rod, thereby fixing the anti-slip sleeve and avoiding sliding of the anti-slip sleeve during work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cutter head structure in the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the driving device in the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the handle in the present utility model;

[0022] Figure 5 Based Figure 4 A magnified schematic diagram of the structure in the middle.

[0023] The meaning of each number in the figure is:

[0024] 1. Cutting head; 11. Fixed sleeve; 12. Cutting head; 13. Guide groove; 14. Movable cutting head; 15. Rotating cutting head; 16. Rotating bolt; 17. Fixing pin;

[0025] 2. Drive assembly; 21. Hydraulic cylinder; 22. Piston rod; 23. Plunger; 24. Pressure relief valve; 25. Mounting sleeve; 26. Rotating frame;

[0026] 3. Handle; 31. Connecting rod; 32. Anti-slip sleeve; 33. Receiving groove; 34. Externally threaded sleeve; 35. Clip; 36. Elastic friction part; 37. Conical sleeve. DETAILED DESCRIPTION

[0027] 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 embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] Example 1:

[0030] See also Figure 1-5 The present invention describes the above technical solution in detail through the following embodiments:

[0031] A high-efficiency cable cutting device for electric power, comprising:

[0032] The cutter head 1 includes a cutter holder assembly, a movable cutter head 14 is slidably mounted in the cutter holder assembly, a rotating cutter head 15 is rotatably mounted at the front end of the cutter holder assembly, and a driving assembly 2 is connected to the bottom end of the movable cutter head 14;

[0033] The tool holder assembly includes a fixed sleeve 11 , a tool holder 12 is fixedly mounted on the top of the fixed sleeve 11 by bolts, a guide groove 13 is provided inside the tool holder 12 , and a movable cutter head 14 is slidably mounted in the guide groove 13 .

[0034] One end of the rotary cutter head 15 is rotatably connected to the tool holder 12 by a rotary bolt 16, and the other end is fixedly connected to the tool holder 12 by a fixing pin 17. After removing the fixing pin 17, the rotary cutter head 15 can rotate around the rotary bolt 16.

[0035] The driving assembly 2 includes a hydraulic cylinder 21, in which a piston rod 22 is slidably installed. The movable cutter head 14 is fixedly installed on the top of the piston rod 22. A plunger 23 is provided on the side of the hydraulic cylinder 21. The plunger 23 is used to drive the piston rod 22 to move. A handle 3 is provided on the side and bottom of the hydraulic cylinder 21. The handle 3 on the side of the hydraulic cylinder 21 is rotatably connected to the hydraulic cylinder 21 and is rotatably connected to the plunger 23.

[0036] The fixed sleeve 11 is threadedly connected to the hydraulic cylinder 21. The piston rod 22 penetrates the fixed sleeve 11 and is fixedly connected to the movable cutter head 14 by bolts.

[0037] The hydraulic cylinder 21 is divided into two layers, an inner layer and an outer layer. The cavity between the inner layer and the outer layer is used to contain hydraulic oil. The piston rod 22 is slidably installed in the inner layer of the hydraulic cylinder 21.

[0038] When the plunger 23 reciprocates, it can pump the hydraulic oil between the inner and outer layers of the hydraulic cylinder 21 into the space between the bottom surface of the piston rod 22 and the inner layer of the hydraulic cylinder 21, thereby driving the piston rod 22 to move along the axial direction toward the outside of the hydraulic cylinder 21, and then driving the movable cutter head 14 to move toward the rotating cutter head 15.

[0039] A pressure relief valve 24 is threadedly connected to the side of the hydraulic cylinder 21. The head of the pressure relief valve 24 is inserted into the inner layer of the hydraulic cylinder 21. When the pressure relief valve 24 is rotated, the inner layer of the hydraulic cylinder 21 is opened, and the hydraulic oil under the piston rod 22 can flow between the inner and outer layers of the hydraulic cylinder 21, so that the piston rod 22 and the movable cutter head 14 can return to their original position.

[0040] The handle 3 includes a connecting rod 31, and an anti-slip sleeve 32 is slidably installed on the outside of the connecting rod 31. A conical sleeve 37 is clamped on the top of the anti-slip sleeve 32 and located on the outside of the connecting rod 31. A receiving groove 33 is provided on the inner side of the head of the conical sleeve 37, and a locking assembly is provided in the receiving groove 33. The locking assembly and the conical sleeve 37 cooperate to limit the movement of the anti-slip sleeve 32.

[0041] The connecting rod 31 is made of a metal tube, and the anti-slip sleeve 32 can be made of a metal tube covered with rubber.

[0042] A mounting sleeve 25 is welded to the bottom surface of the hydraulic cylinder 21 , and a connecting rod 31 of the lower handle 3 is fixedly connected to the mounting sleeve 25 .

[0043] The lower handle 3 remains stationary during use.

[0044] A rotating frame 26 is provided on the side of the hydraulic cylinder 21 . The end of the connecting rod 31 of the side handle 3 is rotatably connected to the rotating frame 26 . The plunger 23 is located between the rotating frame 26 and the bottom surface of the hydraulic cylinder 21 .

[0045] By rotating the handle 3 on the side of the hydraulic cylinder 21 , the end of the connecting rod 31 of the handle 3 on the side can be rotated through the rotating frame 26 , thereby driving the plunger 23 to move.

[0046] The inner diameter of the tapered sleeve 37 gradually decreases from bottom to top, and the inner diameter of the tapered sleeve 37 is the largest near the anti-slip sleeve 32 .

[0047] The conical sleeve 37 is made of metal. The conical sleeve 37 is sleeved on the outside of the connecting rod 31 and can slide along the connecting rod 31. The inner diameter of the uppermost part of the conical sleeve 37 is the same as the outer diameter of the connecting rod 31.

[0048] A plurality of annular protrusions are provided on the bottom of the outer side of the anti-slip cover 32 , and a plurality of strip-shaped protrusions are provided on the top of the outer side of the anti-slip cover 32 .

[0049] Both the annular protrusion and the strip protrusion are made of rubber and are used to increase the friction of the hand grip. The annular protrusion is used to increase the friction in the axial direction, and the strip protrusion is used to increase the friction in the circumferential direction.

[0050] The locking assembly includes an externally threaded sleeve 34 , which is threadedly connected to the inner wall of the receiving groove 33 . A plurality of clips 35 are evenly welded on the top of the externally threaded sleeve 34 , with gaps left between the clips 35 .

[0051] The clip 35 and the externally threaded sleeve 34 are made of metal material. When the externally threaded sleeve 34 and the anti-slip sleeve 32 rotate relative to each other, the externally threaded sleeve 34 can move along the axis of the anti-slip sleeve 32 .

[0052] When the external threaded sleeve 34 moves toward the tapered sleeve 37 , the inner diameter of the tapered sleeve 37 gradually decreases, and the clip 35 is squeezed by the inner wall of the tapered sleeve 37 and bends toward the connecting rod 31 .

[0053] An elastic friction member 36 is adhered to the inner sides of the external threaded sleeve 34 and the clip 35 , and the elastic friction member 36 wraps the connecting rod 31 .

[0054] The elastic friction member 36 can be a rubber sleeve. The inner side of the elastic friction member 36 wraps the connecting rod 31 and can slide along the connecting rod 31.

[0055] When the anti-slip sleeve 32 slides, it can drive the external threaded sleeve 34 , the clip 35 and the tapered sleeve 37 to move, and at the same time drive the elastic friction member 36 to slide along the connecting rod 31 .

[0056] When the anti-slip sleeve 32 is rotated clockwise, the externally threaded sleeve 34 and the clip 35 remain stationary due to the friction between the elastic friction part 36 and the connecting rod 31, and the anti-slip sleeve 32 will move along the axial direction of the externally threaded sleeve 34, driving the tapered sleeve 37 to move toward the externally threaded sleeve 34, thereby squeezing the clip 35 and then squeezing the elastic friction part 36. At this time, the friction between the elastic friction part 36 and the connecting rod 31 increases, and the anti-slip sleeve 32 cannot slide.

[0057] When the anti-slip sleeve 32 is rotated counterclockwise, the tapered sleeve 37 moves away from the external threaded sleeve 34 , and the clip 35 returns to its original shape under its own elasticity and the elastic force of the elastic friction member 36 . The friction force of the elastic friction member 36 is reduced, and the anti-slip sleeve 32 can slide.

[0058] When the operator of this embodiment uses the device, he removes the fixing pin 17 , opens the rotating cutter head 15 , places the cable between the movable cutter head 14 and the rotating cutter head 15 , and then fixes the rotating cutter head 15 and the cutter holder 12 with the fixing pin 17 .

[0059] A force is applied to the anti-slip sleeve 32 to move away from the connecting rod 31, driving the anti-slip sleeve 32 to slide. At the same time, the external threaded sleeve 34, the clip 35 and the tapered sleeve 37 are moved to adjust the handle 3 to a suitable length.

[0060] When the anti-slip sleeve 32 is rotated clockwise, the externally threaded sleeve 34 and the clip 35 remain stationary due to the friction between the elastic friction part 36 and the connecting rod 31, and the anti-slip sleeve 32 will move along the axial direction of the externally threaded sleeve 34, driving the tapered sleeve 37 to move toward the externally threaded sleeve 34, thereby squeezing the clip 35 and then squeezing the elastic friction part 36. At this time, the friction between the elastic friction part 36 and the connecting rod 31 increases, and the anti-slip sleeve 32 cannot slide.

[0061] The adjustment of the length of the handle 3 is completed.

[0062] Pressing the handle 3 on the side of the hydraulic cylinder 21 up and down drives the plunger 23 to reciprocate, thereby driving the piston rod 22 to extend, and then driving the movable cutter head 14 to slide towards the rotating cutter head 15 to cut the cable.

[0063] After the shearing is completed, the pressure relief valve 24 is turned, and then a force is applied to the piston rod 22 in the direction of the hydraulic cylinder 21 to drive the piston rod 22 to return to its original position, and then the pressure relief valve 24 is tightened.

[0064] Then, the anti-slip sleeve 32 is rotated counterclockwise, the tapered sleeve 37 moves away from the external threaded sleeve 34, and the clip 35 returns to its original shape under its own elasticity and the elastic force of the elastic friction member 36. The friction force of the elastic friction member 36 is reduced, and the anti-slip sleeve 32 can slide.

[0065] At this time, push the anti-slip cover 32 back to its original position to complete the storage.

[0066] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency cable cutting device for electric power, characterized in that: include: A cutter head (1), the cutter head (1) comprising a cutter holder assembly, a movable cutter head (14) being slidably mounted in the cutter holder assembly, a rotating cutter head (15) being rotatably mounted at the front end of the cutter holder assembly, and a driving assembly (2) being connected to the bottom end of the movable cutter head (14); The driving assembly (2) includes a hydraulic cylinder (21), a piston rod (22) is slidably installed in the hydraulic cylinder (21), the movable cutter head (14) is fixedly installed on the top of the piston rod (22), a plunger (23) is provided on the side of the hydraulic cylinder (21), and the plunger (23) is used to drive the piston rod (22) to move, and a handle (3) is provided on the side and bottom of the hydraulic cylinder (21), and the handle (3) on the side of the hydraulic cylinder (21) is rotatably connected to the hydraulic cylinder (21) and is rotatably connected to the plunger (23); The handle (3) comprises a connecting rod (31), an anti-slip sleeve (32) is slidably mounted on the outside of the connecting rod (31), a conical sleeve (37) is provided on the top of the anti-slip sleeve (32) and located outside the connecting rod (31), a receiving groove (33) is provided on the inner side of the head of the conical sleeve (37), a locking assembly is provided in the receiving groove (33), and the locking assembly and the conical sleeve (37) cooperate to limit the movement of the anti-slip sleeve (32).

2. The high-efficiency cable cutting device for electric power according to claim 1, characterized in that: The bottom surface of the hydraulic cylinder (21) is provided with a mounting sleeve (25), and the connecting rod (31) of the handle (3) below is fixedly connected to the mounting sleeve (25).

3. The high-efficiency cable cutting device for electric power according to claim 2, characterized in that: A rotating frame (26) is provided on the side of the hydraulic cylinder (21), and the end of the connecting rod (31) of the handle (3) is rotatably connected to the rotating frame (26). The plunger (23) is located between the rotating frame (26) and the bottom surface of the hydraulic cylinder (21).

4. The high-efficiency cable cutting device for electric power according to claim 1, characterized in that: The inner diameter of the tapered sleeve (37) gradually decreases from bottom to top, and the inner diameter of the tapered sleeve (37) is the largest near the anti-slip sleeve (32).

5. The high-efficiency cable cutting device for electric power according to claim 4, characterized in that: The bottom of the outer side of the anti-slip sleeve (32) is provided with a plurality of annular protrusions, and the top of the outer side of the anti-slip sleeve (32) is provided with a plurality of strip-shaped protrusions.

6. The high-efficiency cable cutting device for electric power according to claim 5, characterized in that: The locking assembly comprises an externally threaded sleeve (34) which is threadedly connected to the inner wall of the receiving groove (33). A plurality of clips (35) are evenly arranged on the top of the externally threaded sleeve (34), with gaps left between the clips (35).

7. The high-efficiency cable cutting device for electric power according to claim 6, characterized in that: An elastic friction member (36) is provided inside the external threaded sleeve (34) and the clamping piece (35), and the elastic friction member (36) wraps the connecting rod (31).

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