Portable multi-size radio frequency coaxial cable cutting quantitative tool

Abstract

The invention provides a portable multi-size radio frequency coaxial cable cutting quantitative tool which comprises two injection molding parts with the same structure, the two injection molding parts are assembled in an oppositely embedded mode and are in sliding connection, a cable hole is formed in one side of each injection molding part, and a first U-shaped opening matched with the cable hole of the other injection molding part is formed in the other side of each injection molding part. The injection molding parts are further provided with grooves communicating with the first U-shaped openings, the interiors of the grooves are connected with cutting blades through bolts, and the cable holes in the two injection molding parts, the first U-shaped openings and the grooves are arranged in a staggered mode. The end portion of the injection molding part is in bolted connection with a foldable measuring tool, and the measuring tool covers the blade after being folded. The measuring tool is simple in structure, safe to operate and convenient to carry, the measuring tool is foldable, space is not occupied, the radio frequency coaxial cable can be cut in a fixed-length and fixed-depth mode on site, the situation that the cable is damaged when an inner conductor is cut is avoided, the cutting face is smooth and flat, and cables on the two sides are conveniently connected again.

Description

Technical Field

[0001] The present invention is a portable multi-size radio frequency coaxial cable cutting and quantitative tool, which relates to the technical field of cable processing. Background Art

[0002] The function of radio frequency coaxial cable is to transmit data or electric energy to each component, and it is usually used in various instrument and equipment that require radio frequency signal transmission, as well as in occasions and fields with high requirements for amplitude-phase consistency and stability, such as laboratory tests, instruments, aerospace, phased array radars, satellite communications, etc.

[0003] A radio frequency coaxial cable usually consists of five parts: an inner conductor, an insulator, an inner shielding layer, an outer shielding layer, and a sheath. Among them, the inner conductor layer is generally a single silver-plated copper wire or silver-plated copper-clad steel wire or multiple silver-plated stranded wires. The insulator layer is wound with multiple layers of ultra-low density PTFE unidirectional stretch tapes. The shielding layer adopts a double-shielding layer structure. The inner shielding layer is wound with silver-plated copper. The outer shielding layer is densely woven with round silver-plated copper wires. The sheath uses a thermoplastic FEP material with relatively high environmental adaptability, making the cable have high environmental adaptability.

[0004] During on-site construction, it is usually necessary to connect cables on-site, strip the cables, remove the shielding layer and insulator to expose the inner conductor, connect the inner conductor parts of the two cables together and stick conductive tape, and then put on the insulator layer for insulation treatment.

[0005] The cable stripping steps are as follows:

[0006] Remove the sheath: Remove it according to the required cable length and sheath thickness. When removing, pay special attention to the port position and port cutting surface.

[0007] Remove the outer shielding layer: Cut the outer shielding layer to expose the inner shielding layer.

[0008] Remove the inner shielding layer and cut the insulator layer to expose the inner conductor layer.

[0009] At present, in the workshop, an automatic wire stripper is usually used to strip the outer sheath and shielding layer, a laser wire stripper is used to strip the insulating layer, a toothless flat-nose pliers is used to straighten the cable core wire at the blind plug end, a special chamfering machine is used to slightly chamfer the cable core wire, and a brush is used to clean up the debris. The workshop stripping machines are generally bulky and difficult to use on-site. When cutting cables on-site, a wire stripper or an electrician's knife is usually used to cut the sheath, inner and outer shielding layers, and insulator layer. However, it is difficult to control the cutting depth of the wire stripper or the electrician's knife, and there are often phenomena such as cutting the inner conductor and damaging the cable or missing stripping, and the cutting surface is not smooth and the cutting length is not standard, etc., which affect the connection quality of the end. Summary of the Invention

[0010] To solve the above technical problems, the object of the present invention is to provide a portable multi-size radio frequency coaxial cable cutting and quantitative tool, which can easily achieve on-site fixed-length and fixed-depth cutting of radio frequency coaxial cables, with simple and safe operation, controllable cutting depth, accurate cutting length, convenient to carry and capable of cutting cables of various size models. It is a very convenient device for use in on-site environments. The specific technical solution is as follows:

[0011] A portable multi-size radio frequency coaxial cable cutting and quantitative tool includes two injection molding parts with the same structure. The two injection molding parts are embedded and assembled in opposite directions and are slidably connected. One side of each injection molding part is provided with a cable hole, and the other side is provided with a first U-shaped opening adapted to the cable hole of the other injection molding part. The injection molding part is also provided with a groove communicating with the first U-shaped opening, and a cutting blade is bolted in the groove. The cable holes, the first U-shaped openings and the grooves on the two injection molding parts are staggered respectively; a foldable measuring tool is bolted to the end of the injection molding part, and the measuring tool covers the cutting blade after being folded.

[0012] Preferably, pins are provided on both of the two injection molding parts, and a spring for resetting the injection molding parts is provided between the pins.

[0013] Preferably, the injection molding part is integrally formed and includes an L-shaped base. Two symmetrically arranged key grooves are provided on the top surface of the L-shaped base; a cable hole is provided between the key grooves, and an extension plate extending inwards is provided in the length direction of the key groove. A second U-shaped opening is formed between the extension plates. Two symmetrically arranged key blocks are provided on the L-shaped base, and a pin is provided between the key blocks. One end of the L-shaped base is provided with a first U-shaped opening. The first U-shaped opening, the second U-shaped opening and the pin are on the same horizontal axis, and the pin is located between the first U-shaped opening and the second U-shaped opening. A groove for installing a cutting blade is provided on the bottom surface of the L-shaped base; a measuring tool is bolted to the side of the L-shaped base; the two injection molding parts are slidably connected through the key blocks and the key grooves, and the extension plate of one injection molding part is inserted into the gap between the extension plate of the other injection molding part and the L-shaped base.

[0014] Preferably, the measuring tool includes a fastening plate, the fastening plate is connected to the injection molding part through a first fastening screw, the top end of the fastening plate is rotatably connected to a measuring scale through a rotating shaft, the measuring scale is slidably connected to a plate-shaped top tool, and the position between the top tool and the measuring scale is limited by a second fastening screw.

[0015] Further, the measuring scale is provided with scales and three strip holes are vertically provided. The strip hole in the middle position passes through the second fastening screw to be connected to the top tool, and the protruding sliders on the top tool are slidably connected in the strip holes at both side positions.

[0016] Preferably, the width of the measuring tool corresponds to the opening width of the first U-shaped opening.

[0017] Preferably, the cutting blade is a parallelogram blade with a loop-shaped hole in the middle, and the width of the cutting blade corresponds to the width of the groove.

[0018] Preferably, the injection-molded part is made by injecting epoxy resin material into an injection mold.

[0019] Preferably, a sleeve for adapting to radio frequency coaxial cables of different sizes can be assembled in the cable hole.

[0020] Furthermore, the injection mold is rectangular and includes six-layer structural plates, and the edges of the six-layer structural plates are encapsulated and formed by baffles;

[0021] A positioning plate is provided on the side of the first-layer structural plate. Two first studs are provided on the positioning plate. A cylinder is provided on the first-layer structural plate near the first stud. First strip-shaped blocks are protruded on both sides of the cylinder;

[0022] The second-layer structural plate is located on the first-layer structural plate. The second-layer structural plate includes a first injection plate. Two symmetrically arranged second injection plates are provided on one side of the first injection plate. The ends of the second injection plates are closely attached to the positioning plate. The inner side of the second injection plates near the positioning plate is in an arc structure. A strip-shaped plate is provided between the second injection plates. The strip-shaped plate is fixedly connected to the middle of one side of the first injection plate;

[0023] The third-layer structural plate is located on the second-layer structural plate. The third-layer structural plate is provided with third injection plates corresponding to the second injection plates. The length of the third injection plates is less than that of the second injection plates. The third injection plates are closely attached to the positioning plate. A second strip-shaped block is provided on the other side of the third-layer structural plate. The inner side of the opening formed by one side of the second strip-shaped block and the third injection plates is flush. The length of the second strip-shaped block is equal to the distance between the two third injection plates, and the width is the same as the length of the strip-shaped plate;

[0024] The fourth-layer structural plate is located on the third-layer structural plate. The fourth-layer structural plate includes a fourth injection plate. Two fifth injection plates corresponding to the third injection plates are provided on one side of the fourth injection plate. The fifth injection plates are closely attached to the positioning plate. Two symmetric strip-shaped grooves are provided on the fourth injection plate;

[0025] The fifth-layer structural plate is located on the fourth-layer structural plate. The fifth-layer structural plate is provided with sixth injection plates corresponding to the fifth injection plates. The sixth injection plates are closely attached to the positioning plate. A U-shaped plate is provided on the fifth-layer structural plate. The U-shaped plate is arranged between the strip-shaped grooves. An arc transition is provided between the U-shaped plate and the sixth injection plates;

[0026] The sixth-layer structural board is located on the fifth-layer structural board and is arranged close to the positioning board on one side. The sixth-layer structural board is provided with an injection hole, and a protruding third strip-shaped block is provided on one side of the bottom surface. A second stud is provided on the third strip-shaped block.

[0027] The structure of the present invention is simple, the operation is safe, it is convenient to carry, the measuring tool can be folded, does not occupy space, can realize on-site fixed-length and fixed-depth cutting of radio frequency coaxial cables, avoid cutting the inner conductor and damaging the cable, the cutting surface is smooth and flat, and it is convenient to reconnect the cables on both sides. Brief Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of a portable multi-size radio frequency coaxial cable cutting and quantification tool of the present invention.

[0029] Figure 2 It is a schematic structural diagram of an injection molding component of the present invention.

[0030] Figure 3 It is a schematic structural diagram of the connection of two injection molding components of the present invention.

[0031] Figure 4 It is a schematic structural diagram of the measuring tool of the present invention.

[0032] Figure 5 It is a schematic structural diagram of the folded measuring tool of the present invention.

[0033] Figure 6 It is a side view of a portable multi-size radio frequency coaxial cable cutting and quantification tool of the present invention.

[0034] Figure 7 is Figure 6 A cross-sectional view in the B-B direction.

[0035] Figure 8 It is a schematic structural diagram of the connection between the pin and the spring of the present invention.

[0036] Figure 9 It is a schematic structural diagram of the set placed in the set box of the present invention.

[0037] Figure 10 It is a schematic structural diagram of the injection mold of the present invention.

[0038] Figure 11 It is an exploded view of the injection mold of the present invention.

[0039] Figure 12 It is a schematic structural diagram of the top surface of the first-layer structural board of the present invention.

[0040] Figure 13 It is a schematic structural diagram of the top surface of the second-layer structural board of the present invention.

[0041] Figure 14It is a schematic structural diagram of the top surface of the third-layer structural board of the present invention.

[0042] Figure 15 It is a schematic structural diagram of the bottom surface of the third-layer structural board of the present invention.

[0043] Figure 16 It is a schematic structural diagram of the top surface of the fourth-layer structural board of the present invention.

[0044] Figure 17 It is a schematic structural diagram of the top surface of the fifth-layer structural board of the present invention.

[0045] Figure 18 It is a schematic structural diagram of the bottom surface of the sixth-layer structural board of the present invention.

[0046] In the figure: 1, injection molding component; 2, cable hole; 3, first U-shaped opening; 4, groove; 5, cutting blade; 501, loop hole; 502, third fastening screw; 6, measuring tool; 601, fastening plate; 602, first fastening screw; 603, measuring scale; 604, top tool; 605, second fastening screw; 606, rotating shaft; 607, slider; 7, pin; 8, spring; 9, L-shaped base; 10, keyway; 11, extension plate; 12, second U-shaped opening; 13, key block; 14, sleeve tool; 15, injection mold; 16, injection hole; 17, first-layer structural board; 18, positioning plate; 19, cylinder; 20, first strip-shaped block; 21, second-layer structural board; 22, first injection molding plate; 23, second injection molding plate; 24, strip-shaped board; 25, third-layer structural board; 26, third injection molding plate; 27, second strip-shaped block; 28, fourth-layer structural board; 29, fourth injection molding plate; 30, fifth injection molding plate; 31, strip-shaped groove; 32, fifth-layer structural board; 33, sixth injection molding plate; 34, U-shaped plate; 35, sixth-layer structural board; 36, third strip-shaped block; 37, second stud. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] Such as Figure 1-9As shown in the figure, a portable multi-size radio frequency coaxial cable cutting and quantitative tool includes two injection-molded parts 1 with the same structure. The two injection-molded parts 1 are oppositely embedded and slidably connected. On one side of each injection-molded part 1, there is a cable hole 2, and on the other side, there is a first U-shaped opening 3 adapted to the cable hole 2 of the other injection-molded part 1. The injection-molded part 1 is also provided with a groove 4 communicating with the first U-shaped opening 3. A cutting blade 5 is bolted in the groove 4. The cable holes 2, the first U-shaped openings 3, and the grooves 4 on the two injection-molded parts 1 are staggered respectively; a foldable measuring tool 6 is bolted to the end of the injection-molded part 1. The measuring tool 6 covers the cutting blade 5 after being folded. The measuring tool 6 can be rotated to be parallel to the injection-molded part 1, realizing the folding of the measuring tool 6 and facilitating carrying. On both of the two injection-molded parts 1, there are pin studs 7, and between the pin studs 7, there is a spring 8 for resetting the injection-molded parts 1. The combination of the spring 8 and the two pin studs 7 realizes the functions of stepless adjustment of the cutting depth and automatic reset. In the static state, the spring 8 is in the natural state. When the injection-molded part 1 is slid, the spring 8 is in the stretched state, and the two injection-molded parts 1 can be reset when the external force is removed.

[0049] The cable hole 2 is used to pass through the cable to be cut, and the top and bottom edges are chamfered to prevent the cylindrical edge from scratching the outer skin of the non-cut part of the cable. The two injection-molded parts 1 are respectively provided with cable holes 2, and two depths can be cut simultaneously to realize synchronous stripping of the sheath, shielding layer, and insulating layer.

[0050] The injection-molded part 1 is integrally formed and includes an L-shaped base 9. On the top surface of the L-shaped base 9, there are two symmetrically arranged key grooves 10; between the key grooves 10, there is a cable hole 2. In the length direction of the key groove 10, there is an extension plate 11 extending inward. A second U-shaped opening 12 is formed between the extension plates 11. On the L-shaped base 9, there are two symmetrically arranged key blocks 13. Between the key blocks 13, there is a pin stud 7. At one end of the L-shaped base 9, there is a first U-shaped opening 3. The first U-shaped opening 3, the second U-shaped opening 12, and the pin stud 7 are on the same horizontal axis. The pin stud 7 is located between the first U-shaped opening 3 and the second U-shaped opening 12. On the bottom surface of the L-shaped base 9, there is a groove 4 for installing the cutting blade 5; the measuring tool 6 is bolted to the side of the L-shaped base 9; the two injection-molded parts 1 are slidably connected through the key blocks 13 and the key grooves 10. The extension plate 11 of one injection-molded part 1 is inserted into the gap between the extension plate 11 of the other injection-molded part 1 and the L-shaped base 9. The height of the gap corresponds to the thickness of the extension plate 11, realizing the position limitation of the two injection-molded parts 1 in the vertical direction. There is a gap for horizontal sliding between the extension plate 11 and the other injection-molded part 1 in the horizontal direction. When the two injection-molded parts 1 slide, they move relative to each other in the gap, and at the same time, the key blocks 13 slide in the key grooves 10, realizing the movement limit in the horizontal direction.

[0051] The measuring tool 6 includes a fastening plate 601 which is connected to the injection molding component 1 by a first fastening screw 602. The top end of the fastening plate 601 is rotatably connected to a measuring scale 603 through a rotating shaft 606. The measuring scale 603 is slidably connected to a plate-shaped top tool 604, and the position between the top tool 604 and the measuring scale 603 is defined by a second fastening screw 605. Further, the measuring scale 603 is provided with scales and three strip holes are vertically provided. The strip hole in the middle position passes through the second fastening screw 605 to be connected to the top tool 604, and sliding blocks 607 protruding from the top tool are slidably connected in the strip holes at both side positions.

[0052] When cutting the cable, the measuring tool 6 at one end of the injection molding component 1 is unfolded to make it in a vertical state. The top tool 604 is moved to a set position (i.e., the position corresponding to the cable cutting length), and then the position of the top tool is fixed by the second fastening screw 605. The cable is passed through the cable hole 2 so that the end of the cable abuts against the lower surface of the top tool 604. The position of the cutting blade 5 in the groove 4 is adjusted so that when the injection molding component 1 moves, it can just cut the outer skin of the cable.

[0053] Specifically, the width of the measuring tool 6 is correspondingly set to the opening width of the first U-shaped opening 3. When the injection molding component 1 slides, the measuring tool 6 can be located in the first U-shaped opening 3 to avoid rigid contact and hinder the movement of the injection molding component 1.

[0054] The cutting blade 5 is a parallelogram blade, which can make the tip contact the outer skin of the cable, ensure the cut is regular, improve the cutting efficiency and ensure the quality of the cut end face at the same time. A loop hole 501 is provided in the middle of it, and the width of the cutting blade 5 corresponds to the width of the groove 4. The setting of the groove 4 is to ensure the depth track of the cutting blade 5, realize the adjustment of the cutting depth, and protect the side cutting edge and the safety of the operator at the same time.

[0055] Further, a sleeve 14 for adapting to different sizes of radio frequency coaxial cables can be assembled in the cable hole 2, and the cable cutting process for different outer diameter size specifications can be realized. The sleeve 14 is an injection molded part and has an interference fit with the cable hole 2 of the injection molding component 1. During the use process, it is assembled by applying pressure, ensuring a firm connection without relative movement between the sleeve 14 and the injection molding component 1.

[0056] As Figure 10-11 shown, the injection molding component 1 is made by injecting epoxy resin material into an injection mold 15. The injection mold 15 is rectangular and includes six layers of structural plates, and the edges of the six layers of structural plates are encapsulated and formed by baffles;

[0057] As Figure 12As shown, a positioning plate 18 is provided on the side of the first-layer structural plate 17. Two first studs are provided on the positioning plate 18 to form screw holes corresponding to the first fastening screws 602. A cylinder 19 is provided near the first studs on the first-layer structural plate 17 to form the cable hole 2. Two protruding first strip-shaped blocks 20 are provided on both sides of the cylinder 19 to form the keyway 10;

[0058] As Figure 13 shown, the top and bottom surfaces of the second-layer structural plate 21 have the same structure and are located on the first-layer structural plate 17. The second-layer structural plate 21 includes a first injection-molded plate 22. Two symmetrically arranged second injection-molded plates 23 are provided on one side of the first injection-molded plate 22. The ends of the second injection-molded plates 23 are closely attached to the positioning plate 18. The inner side of the second injection-molded plates 23 near the positioning plate 18 is in an arc structure. A strip-shaped plate 24 is provided between the second injection-molded plates 23 to form the second U-shaped opening 12. The strip-shaped plate 24 is fixedly connected to the middle of one side of the first injection-molded plate 22;

[0059] As Figure 14 and 15 shown, the third-layer structural plate 25 is located on the second-layer structural plate 21. The third-layer structural plate 25 is provided with third injection-molded plates 26 corresponding to the second injection-molded plates 23. The length of the third injection-molded plates 26 is less than that of the second injection-molded plates 23. The third injection-molded plates 26 are closely attached to the positioning plate 18. Another side of the third-layer structural plate 25 is provided with a second strip-shaped block 27. One side of the second strip-shaped block 27 is flush with the inner side of the opening surrounded by the third injection-molded plates 26. The length of the second strip-shaped block 27 is equal to the distance between the two third injection-molded plates 26, and the width is the same as the length of the strip-shaped plate 24, so as to form a gap between the extension plate 11 and the L-shaped base 9;

[0060] As Figure 16 shown, the fourth-layer structural plate 28 is located on the third-layer structural plate 25, and its bottom surface is a plane. The fourth-layer structural plate 28 includes a fourth injection-molded plate 29. Two fifth injection-molded plates 30 corresponding to the third injection-molded plates 26 are provided on one side of the fourth injection-molded plate 29. The fifth injection-molded plates 30 are closely attached to the positioning plate 18. Two symmetric strip-shaped grooves 31 are provided on the fourth injection-molded plate 29 and are located on the top surface of the fourth-layer structural plate 28 to form the key blocks 13;

[0061] As Figure 17As shown, the top and bottom surfaces of the fifth-layer structural board 32 have the same structure and are located on the fourth-layer structural board 28. The fifth-layer structural board 32 is provided with a sixth injection board 33 corresponding to the fifth injection board 30. The sixth injection board 33 is arranged closely against the positioning board 18. A U-shaped board 34 is provided on the fifth-layer structural board 32. The U-shaped board 34 is arranged between the strip-shaped grooves 31. An arc transition is formed between the U-shaped board 34 and the sixth injection board 33. The U-shaped board 34 is used to form the first U-shaped opening 3.

[0062] As Figure 18 shown, the sixth-layer structural board 35 is located on the fifth-layer structural board 32 and is arranged closely against the positioning board 18 on one side. An injection hole 16 is provided on the sixth-layer structural board 35 for injecting polyethylene material. A raised third strip-shaped block 36 is provided on one side of the bottom surface for forming the groove 4. A second stud 37 is provided on the third strip-shaped block 36 for forming a screw hole corresponding to the third fastening screw 502. The top surface structure is as Figure 11 shown.

[0063] When cutting the cable, pass the cable through the cable hole 2, move the top tool 604 to the required cable cutting length, and fix the position through the second fastening screw 605. Loosen the third fastening screw 502. After adjusting the cutting blade 5 to the appropriate position, fix the position of the cutting blade 5. Slide the injection molded part 1 to be cut to the cutting depth required for the cable. Rotate the cable one week to complete the cutting and realize the cable stripping operation. Then slowly retract the tool. Finally, take out the cable, move the top tool 604 up to an appropriate position, and after rotating the 90° folding scale, make the top tool 604 just able to be inserted into the cable hole 2. If it is necessary to cut both the shielding layer and the insulator of the cable at the same time, the scale 603 and the top tool 604 on the other side can be used to realize the required length and depth for cutting the shielding layer and the insulator in the cable hole 2 on the other side. Push the injection molded part 1 on the other side and rotate the cable to realize the cutting of the required layer. If it is necessary to cut cables with different diameters, the corresponding size sleeve 14 needs to be installed in the supporting cable hole 2. The cable passes through the sleeve 14, and the cutting depth of the cutting blade 5 is adjusted to realize the cutting work of other size cables.

[0064] Example 1: Cutting of a cable sheath with an outer diameter of 12 mm

[0065] Step 1:

[0066] Open the measuring tool 6 and slide the top tool 604.

[0067] Step 2:

[0068] First, insert the cable with an outer diameter of 12 mm into the cable hole 2, drag the top tool 604 to a length of 5 mm and fix it. The top of the cable reaches the bottom of the top tool 604 to complete the length positioning.

[0069] Then, loosen the third fastening screw 502, adjust the position of the cutting blade 5, and push the injection molding part 1. Since the thickness of the cable sheath with an outer diameter of 12 mm is 0.25 mm, through continuous debugging and testing of the tool tip, it finally extends to the appropriate position. Rotate the cable one circle to complete the peeling process.

[0070] Finally, loosen the injection molding part 1, utilize the resilience of the spring 8, retract the tool, and take out the cable.

[0071] Step 3:

[0072] Fold the measuring tool 6 to complete the storage.

[0073] Example 2: Cutting of a cable sheath with an outer diameter of 7.4 mm

[0074] Step 1:

[0075] Open the measuring tool 6 and slide the ejector 604.

[0076] Step 2:

[0077] First, assemble the sleeve 14 with an inner diameter of 7.6 mm in the cable hole 2, insert the cable with an outer diameter of 7.4 mm into the hole of the sleeve 14, drag the ejector 604 to a length of 5 mm, and top the top of the cable to the bottom of the ejector 604 to complete the length positioning.

[0078] Then, loosen the third fastening screw 502, adjust the position of the cutting blade 5, and push the injection molding part 1 so that the tool tip extends 0.4 mm. Rotate the cable one circle to complete the peeling process.

[0079] Finally, loosen the injection molding part 1, utilize the resilience of the spring 8, retract the tool, and take out the cable.

[0080] Step 3:

[0081] Fold the measuring tool 6 to complete the storage.

[0082] Example 3:

[0083] Step 1:

[0084] Open the measuring tool 6, slide the ejector 604, assemble the measuring tools 6 at symmetric positions at both ends, tighten the fixing plate 601 with the first fastening screw 602, and tighten the ejector 604 with the second fastening screw 605.

[0085] Step 2:

[0086] First, the tool 14 with an inner diameter of 7.6 mm is assembled in the cable hole 2. The cable with an outer diameter of 7.4 mm is inserted into the hole of the tool 14. The ejector 604 is dragged to a length of 10 mm, and the top of the cable is pushed against the bottom of the ejector 604 to complete the length positioning. Loosen the third fastening screw 502, adjust the position of the cutting blade 5, push the injection molding part 1, so that the tip of the blade extends 0.4 mm, and rotate the cable one circle to complete the peeling process.

[0087] Then, slide the opposite ejector 604 to a length of 5 mm. The tool 14 with an inner diameter of 7.6 mm is assembled into another cable hole 2. Insert the peeled cable, cut the shielding layer and the insulator layer. The cable is pressed against the surface of the ejector 604 to determine the cable length. Slide the injection molding part 1 on the other side so that the cutting blade 5 extends 2.64 mm, which can just cut off the shielding layer and the insulator layer. Rotate the cable one week to complete the cutting of the shielding layer and the insulator layer.

[0088] Finally, loosen the injection molding part 1, and utilize the resilience of the spring 8 to retract the tool, and take out the cable.

[0089] Step 3:

[0090] Take out the tool 14 and put it into the tool box. Use a wrench to loosen the first fastening screw 602, remove the measuring tool 6 on one side, and fold the common measuring tool 6 to complete the storage.

[0091] The present invention provides a portable radio frequency coaxial cable quantitative cutting device, with controllable cable cutting length, controllable cutting depth, optional cutting size, automatic return, simple operation, and convenient to carry. The cable is inserted into the cable hole 2. The length of the cable is measured by the measuring tool 6. Moving the ejector 604 up and down can fix the cable length to achieve controllable length; the cutting blade 5 can be adjusted longitudinally to control the cutting depth. Pushing the injection molding part 1 with the cutting blade 5 adjusted, and rotating the cable can achieve the peeling action of the cable; after cutting the cable, the spring 8 hung on the pin 7 can automatically return the injection molding part 1 by its own resilience; after cutting the cable, the measuring tool can be rotated 90° to be parallel to the injection molding part 1, and the ejector 604 extends into the cable hole 2, which is convenient to carry.

[0092] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A portable multi-size RF coaxial cable cutting quantitative tool, characterized in that: The invention comprises two injection-molded parts with the same structure, which are embedded, assembled and slidably connected in opposite directions. A cable hole is provided on one side of each injection-molded part, and a first U-shaped opening adapted to the cable hole of the other injection-molded part is provided on the other side. A groove connected to the first U-shaped opening is also provided on the injection-molded part, and a cutting blade is connected by bolts in the groove. The cable holes, the first U-shaped opening and the groove on the two injection-molded parts are arranged alternately. A foldable measuring tool is connected by bolts at the end of the injection-molded part, and the measuring tool covers the cutting blade after being folded.

2. A portable multi-size RF coaxial cable cutting quantitative tool according to claim 1, characterized in that: Pins are arranged on the two injection molded parts, and a spring for resetting the injection molded parts is arranged between the pins.

3. A portable multi-size RF coaxial cable cutting quantitative tool according to claim 1, characterized in that: The injection molded component is integrally formed, including an L-shaped base, the top surface of the L-shaped base is provided with two symmetrically arranged key slots; a cable hole is provided between the key slots, an extension plate extending inwardly is provided in the length direction of the key slot, a second U-shaped opening is formed between the extension plates, two symmetrically arranged key blocks are provided on the L-shaped base, a pin is provided between the key blocks, a first U-shaped opening is provided at one end of the L-shaped base, the first U-shaped opening, the second U-shaped opening and the pin are on the same horizontal axis, the pin is located between the first U-shaped opening and the second U-shaped opening, a groove for installing a cutting blade is provided on the bottom surface of the L-shaped base; a side bolt connection measuring tool of the L-shaped base; the two injection molded components are slidably connected by the key blocks and the key slots, and the extension plate of one injection molded component is inserted into the gap between the extension plate of the other injection molded component and the L-shaped base.

4. A portable multi-size RF coaxial cable cutting quantitative tool according to claim 1, characterized in that: The measuring tool includes a fastening plate, which is connected to the injection molded component through a first fastening screw. The top of the fastening plate is rotatably connected to a ruler through a rotating shaft. The ruler is slidably connected to a plate-shaped top tool. The position between the top tool and the ruler is limited by a second fastening screw.

5. A portable multi-size RF coaxial cable cutting quantitative tool according to claim 4, characterized in that: The ruler is provided with scales and three strip holes in the vertical direction. The strip hole in the middle position is connected with the top tool through the second fastening screw, and the strip holes at the two side positions are slidably connected with the sliders protruding from the top tool.

6. The portable multi-size RF coaxial cable cutting quantitative tool according to claim 1, characterized in that: The width of the measuring tool is set corresponding to the opening width of the first U-shaped opening.

7. The portable multi-size RF coaxial cable cutting quantitative tool according to claim 1, characterized in that: The cutting blade is a parallelogram blade, a circular hole is arranged in the middle thereof, and the width of the cutting blade corresponds to the width of the groove.

8. The portable multi-size RF coaxial cable cutting quantitative tool according to claim 1, characterized in that: The cable hole can be equipped with a set for adapting to radio frequency coaxial cables of different sizes.

9. The portable multi-size RF coaxial cable cutting quantitative tool according to claim 1, characterized in that: The injection molded component is made by injecting epoxy resin material into an injection mold.

10. The portable multi-size RF coaxial cable cutting quantitative tool according to claim 8, characterized in that: The injection mold is rectangular and includes six layers of structural plates, and the edges of the six layers of structural plates are encapsulated and molded by baffles; A positioning plate is provided on the side of the first structural plate, two first studs are provided on the positioning plate, a cylinder is provided on the first structural plate near the first studs, and protruding first strip blocks are provided on both sides of the cylinder; The second structural plate is located on the first structural plate, the second structural plate includes a first injection plate, one side of the first injection plate is provided with two symmetrically arranged second injection plates, the ends of the second injection plates are arranged close to the positioning plate, the inner side of the second injection plates near the positioning plate is in an arc structure, strip plates are arranged between the second injection plates, and the strip plates are fixedly connected to the middle part of one side of the first injection plate; The third structural plate is located on the second structural plate, the third structural plate is provided with a third injection plate corresponding to the second injection plate, the length of the third injection plate is less than the second injection plate, the third injection plate is arranged close to the positioning plate, the other side of the third structural plate is provided with a second strip block, one side of the second strip block is flush with the inner side of the opening surrounded by the third injection plate, the length of the second strip block is equal to the distance between the two third injection plates, and the width is the same as the length of the strip plate; The fourth structural plate is located on the third structural plate, the fourth structural plate includes a fourth injection plate, one side of the fourth injection plate is provided with two fifth injection plates corresponding to the third injection plates, the fifth injection plates are arranged close to the positioning plate, and the fourth injection plate is provided with two symmetrical strip grooves; The fifth structural plate is located on the fourth structural plate, the fifth structural plate is provided with a sixth injection plate corresponding to the fifth injection plate, the sixth injection plate is arranged close to the positioning plate, the fifth structural plate is provided with a U-shaped plate, the U-shaped plate is arranged between the strip grooves, and there is an arc transition between the U-shaped plate and the sixth injection plate; The sixth structural plate is located on the fifth structural plate, with one side close to the positioning plate. The sixth structural plate is provided with an injection hole, a raised third strip block is provided on one side of the bottom surface, and a second stud is provided on the third strip block.

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