Annular cable cutter

Abstract

The utility model discloses an annular cable cutter which comprises a bottom frame, an annular carrier, a clamp, a transverse cutter and a longitudinal cutter. Two opposite annular rails are arranged on the bottom frame; the annular carrier is in sliding fit with the annular track; the two clamps are oppositely arranged along the inner ring of the annular carrier, and the clamps are connected with the annular carrier through adjusting screw rods; the transverse cutter and the longitudinal cutter are symmetrically arranged on the annular carrier, and cutter heads of the transverse cutter and the longitudinal cutter face the geometric center of the annular carrier. According to the utility model, through the cooperation of the annular track and the annular carrier, the transverse cutter can be driven to carry out annular cutting on a cable, the longitudinal cutter can realize longitudinal cutting on the cable, and the device can rapidly and accurately carry out cutting and peeling on a large-scale cable, is flexible and convenient to use, and has a good market prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of cable processing, in particular to an annular cable cutting knife. Background Art

[0002] Cable is a wire made of one or more mutually insulated conductors and an outer insulating protective layer, which is laid underground, in the air, etc. In recent years, with the rapid development of the communications industry, electrification and informatization have become necessary basic products in society. During the cable construction process, the cable insulation layer needs to be stripped when wiring. For some cables with a small radius, traditional manual knives can be used to strip the cable insulation layer. For large or extra-large cables with a large radius, traditional means and tools are no longer applicable. Special large cutters are required. The existing cutters are cumbersome to operate. They need to cut along the circumference of the cable insulation layer first, and then cut along the axial direction. The cutting speed is slow and it is easy to scratch the cable core. Therefore, it is necessary to design a ring-shaped cable cutter that can quickly and accurately cut and strip large cables in view of the shortcomings of the existing technology. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the technical problem of the utility model is to provide a ring-shaped cable cutting knife.

[0004] The technical implementation scheme of the utility model is: an annular cable cutting knife, comprising a base frame, an annular carrier, a clamp, a cross-cutting knife and a longitudinal cutting knife; two opposite annular tracks are arranged on the base frame; the annular carrier is slidably matched with the annular tracks; two clamps are arranged oppositely along the inner circle of the annular carrier, and the clamp is connected to the annular carrier through an adjusting screw; the cross-cutting knife and the longitudinal cutting knife are symmetrically arranged on the annular carrier, and the knife heads of the cross-cutting knife and the longitudinal cutting knife face the geometric center of the annular carrier.

[0005] In addition, it is particularly preferred that the cross-cutting knife includes an adjusting rod and a cross-cutting knife head, one end of the adjusting rod is provided with an external thread, and the annular carrier is provided with a screw hole adapted to the adjusting rod; the cross-cutting knife head is movably arranged at the lower end of the adjusting rod; guide sliders are provided on both sides of the cross-cutting knife head, and one of the arch frames is provided with a guide hole adapted to the cross-cutting knife head and the guide sliders on both sides thereof.

[0006] In addition, it is particularly preferred that the longitudinal cutting knife includes a knife sleeve, an adjusting rod 2 and a longitudinal cutting head; one end of the knife sleeve is provided with an external thread, the annular carrier is provided with a screw hole adapted to the knife sleeve, the knife sleeve is provided with channels running through both ends thereof along the length direction, the channels include a first channel and a second channel, the first channel is used to accommodate the longitudinal cutting head, the second channel is connected to the first channel, and the second channel is provided with an internal thread; a circular hole allowing the knife sleeve to pass through is opened on one of the arch frames; one end of the adjusting rod 2 is provided with a thread adapted to the second channel, and one end of the adjusting rod 2 extends into the first channel and is movably connected with the longitudinal cutting head.

[0007] In addition, it is particularly preferred that the clamp includes an arch frame and a pressure wheel; both ends of the arch frame are respectively provided with threaded holes that cooperate with the adjusting screw thread; there are four pressure wheels, which are arranged in a rectangular shape on the arch frame; the adjusting screw is provided with two sections of threads with opposite rotation directions, and the adjusting screw is rotatably matched with the annular carrier.

[0008] In addition, it is particularly preferred that a spring is sleeved on the adjusting screw, and two ends of the spring are respectively in contact with the two clamps.

[0009] In addition, it is particularly preferred that the outer wall of the adjusting rod 2 is provided with scale lines along its length direction.

[0010] Furthermore, it is particularly preferred that a scale parallel to the cross-cutting knife is provided on the annular carrier.

[0011] Compared with the prior art, the utility model has the following advantages: the utility model can drive the cross-cutting knife to perform circular cutting on the cable through the cooperation of the annular track and the annular carrier, and can realize longitudinal cutting of the cable through the longitudinal cutting knife. The device can quickly and accurately cut and strip large cables, is flexible and convenient to use, and has good market prospects.

[0012] The utility model is provided with a scale which can intuitively adjust the depth of the cross-cutting knife, and a scale line is also provided on the second adjusting rod. By adjusting the cross-cutting knife and the longitudinal cutting knife, the device can be more accurate in cutting and can avoid damaging the wire core. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 The utility model is a three-dimensional structural schematic diagram of an annular track, an annular carrier, a clamp, a cross-cutting knife, a longitudinal cutting knife, an adjusting screw and a spring.

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the clamp and the cross-cutting knife of the utility model.

[0016] Figure 4 for Figure 2 Cross-sectional view of section aa.

[0017] Figure 5 for Figure 2 Cross-sectional view of BB.

[0018] Figure 6 It is a cross-sectional view of the longitudinal cutting knife of the utility model in another state.

[0019] The markings of the components in the accompanying drawings are as follows: 1. Base frame, 2. Annular track, 3. Annular carrier, 4. Clamp, 41. Arch frame, 42. Pressure wheel, 43. Guide hole, 44. Threaded hole, 5. Cross-cutting knife, 51. Adjusting rod 1, 52. Cross-cutting knife head, 53. Guide slide block, 6. Longitudinal cutting knife, 61. Knife sleeve, 62. Adjusting rod 2, 63. Longitudinal cutting knife head, 7. Adjusting screw, 71. Spring, 8. Scale, 9. Scale line. DETAILED DESCRIPTION

[0020] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0021] The bottom of the base frame 1 of the annular cable cutter is equipped with casters, the annular track 2 is installed on the upper side of the base frame 1, the annular track 2 is provided with two halves, the two annular tracks 2 are symmetrically distributed, an annular carrier 3 is arranged in the middle, the two sides of the annular carrier 3 are respectively placed in the track grooves of the annular track 2, the annular carrier 3 can rotate along the annular track 2, the inner ring of the annular track 2 is provided with two symmetrically distributed clamps 4, the clamps 4 are used to clamp the cable when cutting the cable, specifically as shown in FIG. Figure 3 As shown, the clamp 4 includes two symmetrically arranged arch frames 41 and a pressure wheel 42 arranged on the arch frames 41. Both ends of the arch frames 41 are respectively provided with threaded holes 44 that are threadably matched with the adjusting screw 7. Figure 2In the figure, the thread on the adjusting screw 7 includes an upper and lower part, and the rotation directions of the two parts of the thread are opposite. When the adjusting screw 7 is turned, the two arch frames 41 will move toward or away from each other, and the adjusting screw 7 and the annular carrier 3 rotate in coordination. It should be noted that the two adjusting screws 7 need to be turned in the same direction at the same time. Screw heads are provided at both ends of the adjusting screw 7, and both ends can be turned. A spring 71 is provided on the adjusting screw 7, and the two ends of the spring 71 are respectively abutted against the two clamps 4. When the staff turns the two adjusting screws 7, the two clamps 4 are clamped toward each other or loosened away from each other. Four pressure wheels 42 are installed on each arch frame 41. The four pressure wheels 42 are arranged in a rectangular space, and there are two pressure wheels on each side of the arch frame 41. When the clamp 4 is used to clamp the cable, the pressure wheel 42 abuts against the cable. When rotary cutting is performed, the pressure wheel 42 can rotate along the cable. It is particularly important to note that one of the arch frames 41 is provided with a guide hole 43 adapted to the cross-cutting knife 5, and the other arch frame 41 is provided with a circular hole adapted to the longitudinal cutting knife 6. Specifically, the cross-cutting knife 5 and the longitudinal cutting knife 6 are arranged opposite to each other on the annular track 2, and the cross-cutting knife 5 and the longitudinal cutting knife 6 have a guide hole 43 adapted to the cross-cutting knife 5. The head faces the geometric center of the annular carrier 3, wherein the cross-cutting knife 5 is composed of an adjusting rod 51 and a cross-cutting knife head 52, one end of the adjusting rod 51 is provided with an external thread, and the corresponding annular carrier 3 is provided with a screw hole adapted to the adjusting rod 51; the cross-cutting knife head 52 is movably arranged at the lower end of the adjusting rod 51, and guide sliders 53 are arranged on both sides of the cross-cutting knife head 52, and the guide hole 43 is adapted to the cross-cutting knife head 52 and the guide sliders 53 on both sides thereof. When the adjusting rod 51 is rotated, the cross-cutting knife head 52 can be telescopically moved along the guide hole 43, and a scale 8 parallel to the cross-cutting knife 5 is provided on the annular carrier 3. When adjusting the depth of the cross-cutting knife 5, the scale 8 can be referred to. Figure 5 and Figure 6 The longitudinal cutter head 63 of the longitudinal cutter 6 is shown in two states of being extended and retracted. One end of the knife sleeve 61 is provided with an external thread, and the other annular carrier 3 is provided with a screw hole adapted to the knife sleeve 61, and the corresponding arch frame 41 is provided with a circular hole allowing the knife sleeve 61 to pass through; the knife sleeve 61 is provided with channels running through its two ends along the length direction, and the channels include a first channel and a second channel, the first channel is used to accommodate the longitudinal cutter head 63, the second channel is connected to the first channel, and the second channel is provided with an internal thread; one end of the adjusting rod 2 62 is provided with a thread adapted to the second channel, one end of the adjusting rod 2 62 extends into the first channel and is movably connected to the longitudinal cutter head 63, and the outer wall of the adjusting rod 2 62 is provided with scale lines 9 along its length direction. By twisting the adjusting rod 2 62, the depth of the longitudinal cutter head 63 can be adjusted, and the adjusting rod 2 62 is provided with scale lines 9, so that the cutting using the device is more accurate and can avoid damaging the wire core.

[0022] Working principle: First, pass one end of the cable through one side of the circular track 2 and out the other side. After adjustment, turn the adjusting screw 7 to clamp the two clamps 4, and then adjust the cutting depth of the cross-cutting knife 5. For cables with technical parameters, the cutting depth of the cross-cutting knife 5 can be directly adjusted according to the thickness of its insulation layer. For cables without technical parameters, the staff is required to measure the thickness of the insulation layer first, and then adjust it. At this time, adjust the longitudinal knife head 63 into the knife sleeve 61 first, so that the longitudinal knife head 63 does not extend first, and then the staff can hold the cross-cutting knife 5 or the longitudinal knife 6 to rotate. During the rotation, the annular carrier 3 rotates along the annular track 2 and drives the clamp 4 and the cross-cutting knife. 5. The longitudinal cutter 6 rotates together. When it rotates one circle, the cross-cutting knife 5 will cut the cable circumferentially. Then the cross-cutting knife 5 is screwed out upward and the longitudinal cutter 6 is inserted into the insulation layer of the cable. The longitudinal cutter head 63 can be driven to extend out of the knife sleeve 61 by twisting the adjusting rod 62. By observing the degree line 9 on the adjusting rod 62, the depth of the longitudinal cutter head 63 extending into the insulation layer can be controlled. After adjustment, the entire device is pulled toward one end of the cable head, and the longitudinal cutter head 63 can be used to cut the cable along the axial direction. This device not only cuts accurately, but also has high applicability. It does not require electric cutting and can meet the needs of remote environments. This device has undergone many tests with significant results and has good market prospects.

[0023] The above-mentioned embodiments only express the preferred implementation of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A ring-shaped cable cutter, characterized in that: It comprises a base frame (1), an annular carrier (3), a clamp (4), a cross-cutting knife (5) and a longitudinal cutting knife (6); The base frame (1) is provided with two opposite annular tracks (2); The annular carrier (3) is in sliding cooperation with the annular track (2); Two of the clamps (4) are arranged opposite to each other along the inner circle of the annular carrier (3), and the clamps (4) and the annular carrier (3) are connected via an adjusting screw (7); The cross-cutting knife (5) and the longitudinal cutting knife (6) are symmetrically arranged on the annular carrier (3), and the knife heads of the cross-cutting knife (5) and the longitudinal cutting knife (6) face the geometric center of the annular carrier (3); The clamp (4) comprises an arch frame (41) and a pressure wheel (42); The two ends of the arch frame (41) are respectively provided with threaded holes (44) which are threadably matched with the adjusting screw rod (7); There are four pressing wheels (42) arranged in a rectangular shape on the arch frame (41); The adjusting screw (7) is provided with two sections of threads with opposite rotation directions, and the adjusting screw (7) is rotationally matched with the annular carrier (3).

2. A ring-shaped cable cutter according to claim 1, characterized in that: The cross-cutting knife (5) comprises an adjusting rod (51) and a cross-cutting knife head (52); one end of the adjusting rod (51) is provided with an external thread; and the annular carrier (3) is provided with a screw hole adapted to the adjusting rod (51); The horizontal blade head (52) is movably arranged at the lower end of the adjusting rod 1 (51); Guide slide blocks (53) are arranged on both sides of the cross cutter head (52), and one of the arch frames (41) is provided with a guide hole (43) adapted to the cross cutter head (52) and the guide slide blocks (53) on both sides thereof.

3. A ring-shaped cable cutter according to claim 1, characterized in that: The longitudinal cutting knife (6) comprises a knife sleeve (61), a second adjusting rod (62) and a longitudinal cutting head (63); One end of the knife sleeve (61) is provided with an external thread, the annular carrier (3) is provided with a screw hole adapted to the knife sleeve (61), the knife sleeve (61) is provided with channels penetrating through both ends thereof along the length direction, the channels comprising a first channel and a second channel, the first channel being used to accommodate the longitudinal cutter head (63), the second channel being connected to the first channel, and the second channel being provided with an internal thread; one of the arch frames (41) is provided with a circular hole allowing the knife sleeve (61) to pass through; One end of the second adjusting rod (62) is provided with a thread adapted to the second passage, and one end of the second adjusting rod (62) extends into the first passage and is movably connected to the longitudinal cutter head (63).

4. A ring-shaped cable cutter according to claim 1, characterized in that: A spring (71) is sleeved on the adjusting screw rod (7), and two ends of the spring (71) are respectively in contact with the two clamps (4).

5. The annular cable cutter according to claim 3, characterized in that: The outer wall of the second adjusting rod (62) is provided with scale lines (9) along its length direction.

6. The annular cable cutter according to claim 1, characterized in that: The annular carrier (3) is provided with a scale (8) parallel to the cross-cutting knife (5).

Images