CN211629743U

CN211629743U - Cable ring cutting tool

Info

Publication number: CN211629743U
Application number: CN202020331653.9U
Authority: CN
Inventors: 陈锡阳; 吴文熠
Original assignee: Shenzhen Dailu Technology Co ltd
Current assignee: Shenzhen Dailu Technology Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-10-02
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses a cable circular cutting tool, which comprises a base, a rotating platform and a reducing structure; the base comprises a sleeve and a base station, and the sleeve is used for fixing the cable to be processed in a penetrating way; the rotating platform is placed on the base platform and sleeved on the sleeve, so that the rotating platform can move on the base platform around the sleeve in a circular mode; the cutter assembly comprises a circular cutting tool bit and a tool bit fixing frame, and the tool bit fixing frame is used for providing a fixing force for the circular cutting tool bit to move in the radial direction of the sleeve opening of the sleeve; the reducing structure is arranged on the sleeve and used for changing the inner diameter of the sleeve; the cable circular cutting tool with the structure can effectively reduce the requirement of circular cutting construction on construction space and is convenient to construct by only operating the rotary table to do circular motion during construction; in addition, through the arrangement of the base station and the rotating table, the circular cutting head can cut a standard annular cut on the cable in the rotating process, so that the quality of cable circular cutting is ensured.

Description

Cable ring cutting tool

Technical Field

The utility model relates to a cable ring cutting instrument technical field especially relates to a cable ring cutting tool.

Background

As an important component of the urban power grid, the high-voltage cable line plays an important role in ensuring the safe operation of the urban power grid, while in the process of cable installation and construction, the processing of the cable joint is the most important work, and because the manufacturing quality of the cable joint is related to the service life of the whole cable, the requirement on the manufacturing level of the cable joint is particularly high. The structure of a common cable comprises a wire core, an inner semi-conducting layer, a main insulating layer, an outer semi-conducting layer and an armor layer, wherein the inner semi-conducting layer, the main insulating layer, the outer semi-conducting layer and the armor layer are coated outside the wire core. Under the condition that the manufacturing levels of operators are uneven, all cable heads are difficult to meet the process requirements, the difficulty in installing and manufacturing cables is increased to a certain extent due to the limitation of the field environment, so that potential safety hazards exist in the operation of distribution network cables, and cable accidents emerge endlessly. In order to solve the problems, a circular cutting tool is also used for peeling and cutting an outer semi-conducting layer on a cable, but the tool easily causes the problem that the starting end and the terminal end of a blade are not coincident in the process of rotating and circular cutting, so that a spiral knife edge is cut on a cable joint, the construction requirement cannot be met, in addition, generally, the cable terminal is installed in a branch box or a wire inlet cabinet, the space for manufacturing the cable terminal is narrow, the operation space required by the tool is large, and the tool is inconvenient to construct.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cable girdling cutter can effectively reduce the requirement to operating space when for the cable girdling provides standard incision.

In order to realize above-mentioned purpose, the utility model discloses a cable circular cutting tool, it includes:

the base comprises a sleeve and a base station, the base station is arranged on the periphery of a cylinder opening at one end of the sleeve, and the sleeve is used for fixing a cable to be processed in a penetrating way;

a rotary table disposed on the base and fitted over the sleeve such that the rotary table is circumferentially movable on the base around the sleeve;

the rotary table is provided with a sleeve, and the sleeve is provided with a cylindrical opening; the cutter head fixing frame is used for providing a fixing force for the circular cutter head to move radially towards the cylinder opening of the sleeve;

the reducing structure is arranged on the sleeve and used for changing the inner diameter of the sleeve.

Compared with the prior art, the cable circular cutting tool fixes the cable to be processed through the sleeve, and the circular cutting tool bit is installed and fixed through the rotating table which is placed on the base station and coaxially connected with the sleeve, so that during construction, only circular motion of the rotating table needs to be operated, the requirement of circular cutting construction on a construction space can be effectively reduced, and the construction is convenient; the rotary table drives the circular cutting head to rotate while rotating, and because the cable is fixed and the rotary table is also fixed on the sleeve, the circular cutting head can cut a standard annular notch on the cable in the rotating process, thereby ensuring the quality of circular cutting of the cable; in addition, through the arrangement of the reducing structure and the tool bit fixing frame, the cable ring cutting tool can be suitable for cables with different wire diameters.

Preferably, the diameter-variable structure comprises at least two pressing blocks and a fixing sleeve, the pressing blocks comprise pressing plates capable of abutting against the cable and inclined planes arranged on the pressing plates and back to one side of the sleeve, at least two through holes arranged at intervals are formed in the side wall of the sleeve, and the pressing plates are mounted at the through holes and can be close to or far away from the central axis of the sleeve through the through holes so as to change the inner diameter of the sleeve for accommodating the cable; the fixed sleeve is in threaded connection with the outer wall of the sleeve, and the distance that the pressing plate extends into the sleeve is changed through the matching of the fixed sleeve and the inclined plane.

Preferably, the pressing block further comprises a navigation bar, one end of the inclined plane is connected with the pressing plate, the other end of the inclined plane is connected with the navigation bar, so that the whole pressing block is of an L-shaped structure, a navigation groove matched with the navigation bar is formed in the base station, and the navigation bar can slide in the navigation groove.

Preferably, a cavity is arranged in the navigation bar, an opening communicated with the cavity is arranged on the pressing plate, a first elastic piece is arranged in the cavity, a baffle is arranged at the position of the through hole in the sleeve, a notch is arranged on the opening, the pressing plate can freely pass through the baffle through the notch, one end of the first elastic piece is abutted against the baffle, and the other end of the first elastic piece is abutted against the end wall of the other end of the cavity.

Preferably, the number of the pressing blocks is three, the sleeve is provided with three through holes, and the three through holes are uniformly arranged at intervals.

Preferably, the tool bit fixing frame comprises a clamping seat and strip-shaped clamping plates connected to two sides of the clamping seat, the clamping seat is clamped with the circular cutting tool bit, the clamping plates are connected with two sides of the rotating table in a sliding mode, one end, far away from the mounting structure, of the rotating table is provided with a clamping pin, one end, close to the clamping seat, of the clamping plate is provided with a clamping column, and a second elastic piece is arranged between the clamping pin and the clamping column.

Preferably, the mounting structure is a mounting groove formed on the rotating table and communicated with the cylinder opening of the sleeve.

Preferably, an operating handle is further disposed on the rotating platform, and the operating handle is used for driving the rotating platform to rotate.

Preferably, the circular cutter head includes the circular cutter rest and with the circular cutter piece that the connection can be dismantled to the circular cutter rest, the circular cutter piece includes first blade and the second blade of exclusive use, the cutting edge of first blade with telescopic the central axis is perpendicular, the vertical placing of cutting edge of second blade and with telescopic the central axis has certain contained angle, first blade is used for right the cable carries out the circular cutting action, the second blade is used for the incision on the cable is made the chamfer.

Preferably, the cutter assembly further comprises a longitudinal cutter head, the longitudinal cutter head comprises a longitudinal cutter frame and a longitudinal cutter blade arranged on the longitudinal cutter frame, the longitudinal cutter frame abuts against the rotary table to prevent the longitudinal cutter mark from crossing the circular cutter mark, and the cutting edge of the longitudinal cutter blade is parallel to the central line axis of the sleeve.

Drawings

Fig. 1 is a schematic view of a using state of a cable ring cutting tool in an embodiment of the present invention.

Fig. 2 is a schematic view of a three-dimensional structure of a cable ring cutting tool in an embodiment of the present invention.

Fig. 3 is an exploded view of the structure above the base of fig. 2.

Fig. 4 is an overall exploded view of fig. 2.

Fig. 5 is a schematic perspective view of the cable ring cutting tool in another view angle according to an embodiment of the present invention, wherein the pressing block is in a pop-up state.

Fig. 6 is a schematic perspective view of the base according to the embodiment of the present invention.

Fig. 7 is a schematic view of the mounting structure of the pressing block in the embodiment of the present invention.

Fig. 8 is a schematic perspective view of a pressing block according to an embodiment of the present invention.

Fig. 9 is a schematic perspective view of one of the ring-cutting bits according to the embodiment of the present invention.

Fig. 10 is a schematic perspective view of another ring cutter head according to an embodiment of the present invention.

Fig. 11 is a schematic perspective view of a slitting tool according to an embodiment of the present invention.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

As shown in fig. 1 to 4, the utility model discloses a cable circular cutting tool, which comprises a base, a rotary table 3 and a tool assembly. The base comprises a sleeve 10 and a base platform 11, the base platform 11 is arranged on the periphery of a tube opening at one end of the sleeve 10 and used for bearing the rotating platform 3 and the cutter assembly, the sleeve 10 is used for fixing the cable 2 to be processed in a penetrating mode, the base platform 11 in the embodiment is of a circular ring-shaped structure, and the sleeve 10 and the base platform 11 can be of an integrated forming structure or a split structure. The rotary table 3 is placed on the base 11 and fitted over the sleeve 10 so that the rotary table 3 is movable circumferentially around the sleeve 10 on the base 11. The cutter assembly comprises a circular cutting head 40 and a cutter head fixing frame 41, a mounting structure is arranged at the tube opening of the sleeve 10 on the rotary table 3, the mounting structure is used for connecting the circular cutting head 40 and the rotary table 3 in a sliding manner, so that the circular cutting head 40 can be close to or far away from the tube opening of the sleeve 10, preferably, the mounting structure is a mounting groove 30 which is formed on the rotary table 3 and communicated with the tube opening of the sleeve 10, and the circular cutting head 40 can horizontally slide in the mounting groove 30. The bit holder 41 is used to provide the ring cutter bit 40 with a holding force for radial movement toward the opening of the sleeve 10, so that the ring cutter bit 40 can abut against cables 2 of different wire diameters. The reducing structure 5 is provided on the sleeve 10 for changing the inner diameter of the sleeve 10 so that cables 2 of different wire diameters can be fixed in the sleeve 10.

When the cable 2 circular cutting tool in the above embodiment is used for circular cutting of the cable 2, firstly, the inner diameter of the sleeve 10 is adjusted to be obviously larger than the line diameter of the cable 2 through the reducing structure 5, then the cable 2 penetrates into the sleeve 10, the position needing circular cutting is located at a set distance on the surface of the rotating table 3, the set distance depends on the specification and the size of the circular cutting tool bit 40, in the embodiment, the diameter of the sleeve is 10mm, the reducing structure 5 is adjusted again, the available inner diameter of the sleeve 10 is adjusted to be equivalent to the line diameter of the cable 2, the cable 2 is fastened in the sleeve, the tool bit fixing frame 41 is pulled away from the cylinder opening of the sleeve 10, the circular cutting tool bit 40 is installed into the tool bit fixing frame 41, then the rotating table 3 is rotated, and the circular cutting tool is driven by the rotating. Therefore, the cable circular cutting tool with the structure fixes the cable 2 to be processed through the sleeve 10, and the fixed circular cutting tool bit 40 is installed through the rotary table 3 which is placed on the base table 11 and is sleeved with the sleeve 10, so that the circular motion of the rotary table 3 is only needed to be operated during construction, the requirement of circular cutting construction on a construction space can be effectively reduced, and the construction is convenient. In addition, the available inner diameter of the sleeve 10 can be adjusted according to the wire diameter of the cable 2 to be processed, so that the cable 2 is fixed in the sleeve 10, and further, through the arrangement of the tool bit fixing frame 41 and the mounting groove 30 on the rotary table 3, furthermore, during the rotation of the rotary table 3, since the cable 2 is fixed and the rotary table 3 is also fixed on the sleeve 10, the ring cutting tool bit 40 will cut a standard ring-shaped cut on the cable 2 during the rotation, thereby ensuring the quality of ring cutting of the cable 2.

As shown in fig. 4 to 8, the reducing structure 5 includes at least two pressing blocks 50 and a fixing sleeve 51, the pressing block 50 includes a pressing plate 500 capable of abutting against the cable 2 and an inclined surface 501 disposed on the pressing plate 500 and facing away from one side of the sleeve 10, at least two through holes 100 are disposed on a side wall of the sleeve 10, and the pressing plate 500 is mounted at the through holes 100 and can be close to or far from a central axis of the sleeve 10 through the through holes 100 to change an inner diameter of the sleeve 10 accommodating the cable 2. The fixing sleeve 51 is screwed with the outer wall of the sleeve 10, and the distance of the pressing plate 500 extending into the sleeve 10 is changed through the matching of the fixing sleeve 51 and the inclined plane 501, that is, when the fixing sleeve 51 is rotated to enable the fixing sleeve 51 to be close to the base station 11, the fixing sleeve 51 gradually presses the pressing plate 500 into the sleeve 10 through the inclined plane 501 along with the rotation of the fixing sleeve 51, so that the pressing plate 500 is abutted against the cable 2 to fix the cable 2, and when the fixing sleeve 51 is rotated to enable the fixing sleeve 51 to be far away from the base station 11, the inclined plane 501 is gradually released from the fixing sleeve 51 along with the rotation of the fixing sleeve 51, so that the pressing plate 500 is. Preferably, in order to ensure the stable movement of the pressing plate 500, the pressing block 50 further includes a navigation bar 502, one end of the inclined plane 501 is connected to the pressing plate 500, and the other end of the inclined plane 501 is connected to the navigation bar 502, so that the pressing block 50 is integrally L-shaped, the base 11 is provided with a navigation groove 110 adapted to the navigation bar 502, the navigation bar 502 can slide in the navigation groove 110, and the pressing plate 500 can be prevented from separating from the through hole 100 by the cooperation of the navigation bar 502 and the navigation groove 110. Further, a cavity 503 is arranged in the navigation bar 502, an opening portion 504 communicated with the cavity 503 is arranged on the pressing plate 500, a first elastic member 505 is arranged in the cavity 503, a baffle 101 is arranged at the through hole 100 on the sleeve 10, a notch 506 is arranged on the opening portion 504, through the notch 506, the pressing plate 500 can freely pass through the baffle 101, the pressing plate 500 is prevented from being blocked by the baffle 101 when entering the sleeve 10, one end of the first elastic member 505 is abutted against the baffle 101, and the other end of the first elastic member 505 is abutted against the end wall of the other end of the cavity 503. In this embodiment, the first elastic member 505 is arranged to make the pressing plate 500 have a constant tendency to move away from the sleeve 10, and when the fixing sleeve 51 rotates away from the base 11, the pressing plate 500 can automatically move backwards to move in a direction of withdrawing from the sleeve 10. Preferably, the side of the pressure plate 500 facing into the sleeve 10 is provided with a curved surface 507 adapted to the cable 2. It should be noted that, when two pressing pieces 50 are provided, the two pressing pieces 50 need to be arranged oppositely, that is, the two pressing pieces 50 are spaced by 180 °, in this embodiment, three pressing pieces 50 are preferred, and the three pressing pieces 50 are spaced by 120 °, so that the sleeve 10 and the cable can be coaxial. Through the arrangement of the reducing structure 5 in the embodiment, the available inner diameter in the sleeve 10 can be adjusted steplessly, and the operation is convenient and quick.

In another preferred embodiment of the cable ring-cutting tool of the present invention, as shown in fig. 3 and 4, the tool bit holder 41 comprises a holder 410 and a strip-shaped clamp plate 411 connected to two sides of the holder 410, the holder 410 is connected to the ring-cutting tool bit 40, the clamp plate 411 is connected to two sides of the rotary table 3 in a sliding manner, the end of the rotary table 3 away from the mounting structure is provided with a clamp pin 31, the end of the clamp plate 411 close to the holder 410 is provided with a clamp post 412, and a second elastic member 413 is disposed between the clamp pin 31 and the clamp post 412. In this embodiment, the tool bit holder 41 and the circular cutting head 40 are connected into a whole by the arrangement of the clamping seat 410, and the two clamping plates 411 are located at two sides of the rotating platform 3, so that when the rotating platform 3 rotates, the tool bit holder 41 can be driven to rotate synchronously, and in addition, the circular cutting head 40 and the cable 2 to be processed are abutted together by the arrangement of the second elastic member 413, that is, the second elastic member 413 provides a constant cutting force for the circular cutting head 40. For operating the rotating platform 3, preferably, an operating handle 32 is further disposed on the rotating platform 3, and the operating handle 32 is used for driving the rotating platform 3 to rotate.

Further, as shown in fig. 9 and 10, the ring-cutting head 40 includes a ring-cutting knife holder 400 and a ring-cutting knife detachably connected to the ring-cutting knife holder 400, the ring-cutting knife includes a first knife 401 and a second knife 402 which are used separately, the knife edge of the first knife 401 is perpendicular to the central axis of the sleeve 10, the knife edge of the second knife 402 is vertically disposed and has a certain included angle with the central axis of the sleeve, the first knife 401 is used for performing a ring-cutting action on the cable 2, so that the second knife 402 is used for making a chamfer at the cut on the cable 2. When the circular cutting work is carried out, the first blade 401 is installed on the circular cutting tool rest 400, at the moment, the blade edge of the first blade 401 is perpendicular to the axis of the center line of the sleeve 10, so that a cutting surface perpendicular to the extending direction of the cable 2 is formed, after the cut skin layer is peeled, the second blade 402 is detached, the second blade 402 is installed, and as the blade edge of the second blade 402 is vertically arranged and has a certain included angle with the central axis of the sleeve, when the circular cutting tool rest 400 moves along the cable 2 in a circular mode, the second blade 402 makes an arc-shaped chamfer on the step cut by the first blade 401, and the discharging probability is reduced.

Preferably, as shown in fig. 11, the cutter assembly further comprises a longitudinal cutter head 42, the longitudinal cutter head 42 comprises a longitudinal cutter holder 420 and a longitudinal cutter blade 421 mounted on the longitudinal cutter holder 420, the longitudinal cutter holder 420 abuts against the rotary table 3 to prevent the longitudinal cutter mark from crossing the circular cutter mark, and a cutting edge of the longitudinal cutter blade 421 is parallel to the central line axis of the sleeve. After the circular cutting operation is performed by the first blade 401, the handheld longitudinal cutting tool holder 420 abuts against the rotary table 3, and the longitudinal cutting blade 421 is inserted into the skin layer to be peeled off on the cable 2, so that a longitudinal cut is cut on the cable 2 along the longitudinal direction of the cable 2 by the handheld longitudinal cutting tool holder 420, and the skin layer is more conveniently peeled off.

In summary, as shown in fig. 1 to 11, the utility model discloses a cable ring cutting tool, when in use, firstly the fixing sleeve 51 is rotated to make the pressing plate 500 withdraw from the sleeve 10, then the cable 2 penetrates into the sleeve 10 and then the fixing sleeve 51 is rotated reversely to make the pressing plate 500 move towards the sleeve 10 until the pressing plate 500 abuts against the outer wall of the cable 2; then, a first blade 401 is installed on the circular cutting knife rest 400, the blade holder 41 is pulled out, the circular cutting knife rest 400 is clamped into the installation groove 30, the blade holder 41 is loosened, the rotating table 3 is rotated through the operating handle 32, the first blade 401 makes circular motion along the cable 2, a standard circular cut is cut on the cable 2, the blade holder 41 is pulled out, and the circular cutting knife rest 400 is taken out; then, the longitudinal cutting knife rest 420 is abutted against the rotating table 3, the longitudinal cutting knife 421 is made to penetrate into the skin layer to be peeled of the cable 2, and the longitudinal cutting knife rest 420 is held by hand to cut a longitudinal cut on the cable 2 along the longitudinal direction of the cable 2, so that the skin layer is more conveniently peeled; then, the second blade 402 is replaced on the circular cutting tool holder 400, the rotary table 3 is rotated, and the steps at the annular gap 506 on the cable 2 are chamfered, so that the circular cutting work of all the cables 2 is completed. Therefore, by the cable circular cutting tool, circular cutting operation can be conveniently and quickly carried out on the cable 2, the quality of the cut made is high, and construction cost is saved by the tool and the tool are suitable for cables 2 of various specifications.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims

1. A cable ring cutter, comprising:

a rotary table which is placed on the base table and sleeved on the sleeve, so that the rotary table can rotate around the circumference of the sleeve on the base table;

2. The cable ring cutting tool according to claim 1, wherein the diameter-variable structure comprises at least two pressing blocks and a fixing sleeve, the pressing blocks comprise pressing plates capable of abutting against the cable and inclined planes arranged on the pressing plates and facing away from one side of the sleeve, at least two through holes are formed in the side wall of the sleeve and arranged at intervals, and the pressing plates are mounted at the through holes and can be close to or far away from the central axis of the sleeve through the through holes so as to change the inner diameter of the sleeve for accommodating the cable; the fixed sleeve is in threaded connection with the outer wall of the sleeve, and the distance that the pressing plate extends into the sleeve is changed through the matching of the fixed sleeve and the inclined plane.

3. The cable ring cutting tool according to claim 2, wherein the pressing block further comprises a navigation bar, one end of the inclined plane is connected with the pressing plate, and the other end of the inclined plane is connected with the navigation bar, so that the pressing block is integrally in an L-shaped structure, the base station is provided with a navigation groove matched with the navigation bar, and the navigation bar can slide in the navigation groove.

4. The cable ring cutting tool according to claim 3, wherein a cavity is formed in the navigation bar, an opening is formed in the pressure plate and communicates with the cavity, a first elastic member is formed in the cavity, a baffle is formed at the through hole of the sleeve, a notch is formed in the opening, the pressure plate can freely pass through the baffle through the notch, one end of the first elastic member abuts against the baffle, and the other end of the first elastic member abuts against an end wall of the other end of the cavity.

5. The cable ring cutting tool according to claim 2, wherein there are three of said press blocks, and three of said through holes are provided in said sleeve, and are spaced apart from each other at regular intervals.

6. The cable ring cutting tool according to claim 1, wherein the tool bit holder comprises a clamping seat and elongated clamping plates connected to two sides of the clamping seat, the clamping seat is clamped with the ring cutting tool bit, the clamping plates are slidably connected to two sides of the rotating table, a clamping pin is arranged at one end of the rotating table far away from the mounting structure, a clamping column is arranged at one end of the clamping plate close to the clamping seat, and a second elastic member is arranged between the clamping pin and the clamping column.

7. The cable ring cutting tool according to claim 1, wherein the mounting structure is a mounting groove formed on the rotary table and communicating with the opening of the sleeve.

8. The cable ring cutting tool according to claim 1, wherein an operating handle is further provided on the rotary table for rotating the rotary table.

9. The cable ring-cutting tool according to claim 1, wherein the ring-cutting tool bit comprises a ring-cutting tool holder and a ring-cutting blade detachably connected with the ring-cutting tool holder, the ring-cutting blade comprises a first blade and a second blade which are used independently, a cutting edge of the first blade is perpendicular to a central axis of the sleeve, a cutting edge of the second blade is vertically arranged and has a certain included angle with the central axis of the sleeve, the first blade is used for performing ring-cutting action on the cable, and the second blade is used for chamfering a cutting opening on the cable.

10. The cable ring cutting tool of claim 1, wherein the tool assembly further comprises a slitting tool bit comprising a slitting tool holder and a slitting blade mounted on the slitting tool holder, the slitting tool holder abutting the rotary table, the cutting edge of the slitting blade being parallel to the centerline axis of the sleeve.