Handheld wire stripper

Abstract

The utility model relates to a handheld wire stripper which comprises a base frame, a roller and a stripping knife, the base frame is provided with a containing cavity and a first threaded hole, and the first threaded hole penetrates through the base frame and is communicated with the containing cavity; the rolling wheel is located in the containing cavity and rotatably connected to the base frame, a limiting groove formed in the circumferential direction of the rolling wheel is formed in the surface of the rolling wheel, the section of the limiting groove is conical, the limiting groove is used for containing cables with different diameters, and the axis direction of the first threaded hole faces the limiting groove; the peeling knife comprises a knife head part and a threaded part, the threaded part is in threaded connection in the first threaded hole, one end of the knife head part is detachably connected to the threaded part, and the other end of the knife head part is located in the containing cavity, faces the limiting groove and is in threaded connection with the limiting groove in the axis direction of the first threaded hole. The projection of the tool bit part is located in the projection of the threaded part.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of cable stripping tools, in particular, to a handheld cable stripper. BACKGROUND

[0002] After replacing the old cable used by the equipment with a new cable, it is usually necessary to perform stripping work on the old cable to recover the metal core in the old cable.

[0003] There are two existing stripping methods, one is manual stripping, and the other is stripping using a stripping tool. Manual stripping directly using a skinning knife is difficult, labor-intensive, and inefficient. Although the use of a stripping tool can improve stripping efficiency, the current stripping tool cannot be applied to cables of different diameters, and has poor versatility. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present disclosure is to provide a handheld cable stripper that can strip the skin of cables of various diameters.

[0005] To achieve the above purpose, the present disclosure provides a handheld cable stripper, comprising a base frame, a roller and a skinning knife, the base frame has a receiving cavity and a first threaded hole, the first threaded hole penetrates through the base frame and communicates with the receiving cavity; the roller is located in the receiving cavity and is rotatably connected to the base frame, the surface of the roller is formed with a limiting groove arranged circumferentially around the roller, the cross section of the limiting groove is tapered and used for accommodating a cable, and the axis direction of the first threaded hole is towards the limiting groove; the skinning knife comprises a knife head and a threaded part, the threaded part is screwed into the first threaded hole, one end of the knife head is detachably connected to the threaded part, the other end of the knife head is located in the receiving cavity and towards the limiting groove, and the projection of the knife head is located in the projection of the threaded part along the axis direction of the first threaded hole.

[0006] Optionally, a first protruding extension is arranged on the base frame, the first extension is located in the receiving cavity, a guide hole is arranged in the first extension, the guide hole is coaxially arranged with the first threaded hole, and the hole diameter of the guide hole is greater than or equal to the hole diameter of the first threaded hole.

[0007] Optionally, a second protruding extension is arranged on the base frame, the second extension is located outside the base frame, a second threaded hole is arranged in the second extension, the second threaded hole is coaxially arranged with the first threaded hole, and the threaded part is screwed into the first threaded hole and the second threaded hole.

[0008] Optionally, the barking knife further comprises a handle part connected at an end of the threaded part away from the blade head part, and an outer diameter of the handle part is equal to an outer diameter of the second extending part.

[0009] Optionally, the handheld wire stripper further comprises a locking member for lockingly connecting the threaded part to the second extending part in an unlockable manner, so as to limit rotation of the threaded part relative to the second extending part.

[0010] Optionally, the locking member is a screw rod, and a third threaded hole is formed in the second extending part and communicates with the second threaded hole, and the screw rod is threadedly connected in the third threaded hole and can abut against the threaded part.

[0011] Optionally, the threaded part is provided with an insertion hole, the blade head part comprises a blade tip part and a connecting part connected to each other, and the connecting part is inserted in the insertion hole.

[0012] Optionally, an annular groove extending along a circumferential direction of the connecting part is arranged on an outer wall of the connecting part, and a rubber ring is sleeved in the annular groove and can abut against a hole wall of the insertion hole.

[0013] Optionally, the base frame comprises a first plate body and a second plate body arranged oppositely, and a third plate body fixed between the first plate body and the second plate body, the first plate body, the second plate body and the third plate body jointly define the accommodating cavity, both ends of the roller are rotatably connected to the first plate body and the second plate body respectively, and the first threaded hole is formed in the third plate body.

[0014] Optionally, a first reinforcing rib is arranged at a corner of the first plate body and the third plate body, and a second reinforcing rib is arranged at a corner of the second plate body and the third plate body.

[0015] By the technical scheme, the section of the limiting groove on the surface of the roller is set as a taper shape, so that the two opposite groove walls of the limiting groove are in an inclined state, and cables with different diameters can be in contact with the first groove wall and the second groove wall, so that the limiting groove can be suitable for cables with different diameters. The threaded part of the stripping knife is screwed with the first threaded hole arranged on the base frame, so that the distance between the threaded part and the limiting groove can be adjusted by screwing the threaded part. Since one end of the blade head part of the stripping knife is detachably connected to the threaded part, the distance between the blade head part and the limiting groove can also be adjusted by screwing the threaded part, thereby achieving the function of adjusting the distance between the blade head part and the cable. For cables with different diameters, the blade head part can cut the sheath of the cable. Since the projection of the blade head part in the axial direction of the first threaded hole is located within the projection of the threaded part in the axial direction of the first threaded hole, during the process of screwing the threaded part to move the threaded part away from the roller to separate the threaded part from the base frame, the blade head part can move with the threaded part and pass out of the first threaded hole, so that the stripping knife is separated from the base frame as a whole. The blade head part and the threaded part are detachably connected, so that the replacement of the blade head part can be completed after the stripping knife is disassembled.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description section. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation on the present disclosure. In the drawings:

[0018] Figure 1 is a perspective structural schematic view of a handheld wire stripper provided by an exemplary embodiment of the present disclosure;

[0019] Figure 2 is a perspective structural schematic view of a stripping knife separated from a base frame provided by an exemplary embodiment of the present disclosure;

[0020] Figure 3 is a front view (different from the perspective view of Figure 1 ) of the handheld wire stripper provided by an exemplary embodiment of the present disclosure;

[0021] Figure 4 is a sectional structural schematic view of A-A in Figure 3 ;

[0022] Figure 5 is a perspective structural schematic view of a blade head part provided by an exemplary embodiment of the present disclosure.

[0023] EXPLANATION OF REFERENCE NUMERALS

[0024] 100-base; 101-housing cavity; 110-first plate body; 120-second plate body; 121-first threaded hole; 130-third plate body; 140-first extension; 141-guide hole; 150-second extension; 151-second threaded hole; 152-third threaded hole; 160-first reinforcing rib; 170-second reinforcing rib;

[0025] 200-roller; 210-limiting groove; 211-first groove wall; 212-second groove wall;

[0026] 300-peeling knife; 310-knife head; 311-connection part; 312-knife tip; 313-annular groove; 320-knife handle; 321-threaded part; 322-insertion hole;

[0027] 400-locking member. DETAILED DESCRIPTION

[0028] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0029] In the description of the present disclosure, it should be understood that the terms "inner, outer" refer to the inner and outer of the corresponding structure contour. In addition, the terms "first", "second" and the like are only used to distinguish one element from another element, and do not have sequential and important meanings.

[0030] In the description of the present disclosure, it should also be noted that unless otherwise explicitly specified and limited, the terms "set", "connected", "connected", "installed" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0031] The present disclosure provides a handheld wire stripper to solve the technical problem that the wire stripper in the prior art cannot be applied to cables of different diameters.

[0032] As Figures 1 to 5As shown, the handheld wire stripper provided in this disclosure includes a base frame 100, a roller 200, and a stripping blade 300. The base frame 100 has a receiving cavity 101 and a first threaded hole 121, the first threaded hole 121 penetrating the base frame 100 and communicating with the receiving cavity 101. The roller 200 is located in the receiving cavity 101 and rotatably connected to the base frame 100. A limiting groove 210 is formed on the surface of the roller 200 and is arranged circumferentially around the roller 200. The limiting groove 210 has a tapered cross-section and is used for... The first threaded hole 121 is oriented towards the limiting groove 210 to accommodate the cable. The stripper 300 includes a blade head 310 and a threaded portion 321. The threaded portion 321 is screwed into the first threaded hole 121. One end of the blade head 310 is detachably connected to the threaded portion 321. The other end of the blade head 310 is located in the receiving cavity 101 and faces the limiting groove 210. Along the axial direction of the first threaded hole 121, the projection of the blade head 310 is located at the projection of the threaded portion 321.

[0033] Through the above technical solution, by setting the cross-section of the limiting groove 210 on the surface of the roller 200 to a conical shape, it is possible to make the two opposite groove walls of the limiting groove 210 (such as...) Figure 1 Both the first groove wall 211 and the second groove wall 212 are in an inclined state, allowing cables of different diameters to contact the first groove wall 211 and the second groove wall 212, thus making the limiting groove 210 suitable for cables of different diameters. By screwing the threaded part 321 of the stripper 300 to the first threaded hole 121 provided on the base frame 100, the distance between the threaded part 321 and the limiting groove 210 can be adjusted by turning the threaded part 321. Since one end of the blade head 310 of the stripper 300 is detachably connected to the threaded part 321, turning the threaded part 321 can also adjust the distance between the blade head 310 and the limiting groove 210, thereby achieving the function of adjusting the distance between the blade head 310 and the cable. For cables of different diameters, the blade head 310 can cut the cable sheath. Furthermore, since the projection of the blade head 310 along the axial direction of the first threaded hole 121 lies within the projection of the threaded portion 321 along the axial direction of the first threaded hole 121, the blade head 310 can move along with the threaded portion 321 and pass through the first threaded hole 121 during the process of twisting the threaded portion 321 to move it away from the roller 200 and separate the threaded portion 321 from the base frame 100, thus allowing the peeling blade 300 to be completely separated from the base frame 100. The blade head 310 and the threaded portion 321 are detachably connected, therefore, the blade head 310 can be replaced after the peeling blade 300 is disassembled.

[0034] It should be noted that the blade head 310 can be configured to have various hardnesses and different sharpnesses to cut the outer sheath of cables of different materials.

[0035] In some alternative embodiments, the base 100 is provided with a first extension 140 protruding from the base 100, the first extension 140 is located in the accommodating cavity 101, the first extension 140 is provided with a guide hole 141, the guide hole 141 is coaxially arranged with the first threaded hole 121, and the diameter of the guide hole 141 is greater than or equal to the diameter of the first threaded hole 121.

[0036] The diameter of the guide hole 141 is greater than or equal to the diameter of the first threaded hole 121, so that the tool bit 310 and the threaded portion 321 can slide in the guide hole 141, the guide hole 141 of the first extension 140 can guide and limit the tool bit 310 and / or the threaded portion 321 located in the guide hole 141, and reduce the shaking of the peeling knife 300 due to the excessive distance between the tool bit and the first threaded hole 121 during the peeling process.

[0037] Of course, in some alternative embodiments, the diameter of the guide hole 141 can be equal to the diameter of the first threaded hole 121, so that after the first end of the tool handle 320 enters the guide hole 141, the gap between the tool handle 320 and the guide hole 141 is smaller, and the hole wall of the guide hole 141 can provide more limiting support force for the tool handle 320.

[0038] As shown in Figure 2 In some alternative embodiments, the base 100 is provided with a second extension 150 protruding from the base 100, the second extension 150 is located outside the base 100, the second extension 150 is provided with a second threaded hole 151, the second threaded hole 151 is coaxially arranged with the first threaded hole 121, and the threaded portion 321 is screwed into the first threaded hole 121 and the second threaded hole 151.

[0039] After the second threaded hole 151 is provided, the threaded portion 321 can be screwed into the first threaded hole 121 and the second threaded hole 151 at the same time, the length of the threaded hole matched with the threaded portion 321 is increased, and thus the tool bit 310 can be more stably connected with the base 100.

[0040] As shown in Figure 1 and Figure 3As shown in some optional embodiments, the stripping knife 300 further comprises a handle portion 320 connected at one end of the threaded portion 321 away from the head portion 310, and the outer diameter of the handle portion 320 is equal to the outer diameter of the second extension portion 150. The operator can have a better grip feeling when holding the handle portion 320 and the second extension portion 150, and the relative fixation between the handle portion 320 and the second extension portion 150 can also be achieved by holding the handle portion 320 and the second extension portion 150, avoiding the rotation of the threaded portion 321 relative to the second extension portion 150, and the change in the distance between the head portion 310 and the limiting groove 210 caused by the rotation of the threaded portion 321 can be avoided when the distance between the head portion 310 and the roller 200 does not need to be adjusted, for example, during the process of stripping the cable. At the same time, when the threaded portion 321 needs to be screwed, for example, when the distance between the head portion 310 and the roller 200 needs to be adjusted, the handle portion 320 can also be set to facilitate the operator to indirectly control the rotation of the threaded portion 321 by screwing the handle portion 320.

[0041] As shown in some optional embodiments, Figure 1 and Figure 2 As shown in some optional embodiments, the handheld wire stripper further comprises a locking member 400 for unlocking the threaded portion 321 and locking it on the second extension portion 150, so as to limit the rotation of the threaded portion 321 relative to the second extension portion 150. After adjusting the distance between the head portion 310 and the roller 200 by screwing the threaded portion 321 to adapt to the cable, the threaded portion 321 can be locked on the second extension portion 150 by the locking member 400, avoiding the rotation of the threaded portion 321 affecting the stripping effect of the cable by the head portion 310. After unlocking the locking member 400, the threaded portion 321 can rotate relative to the second extension portion 150, that is, the threaded portion 321 can rotate in the first threaded hole 121.

[0042] Of course, if the skin of the cable is easy to strip, the locking member 400 can not be used, and the relative fixation between the handle portion 320 and the second extension portion 150 can be achieved only by the operator holding the handle portion 320 and the second extension portion 150 at the same time.

[0043] For the specific structure of the locking member, as shown in some optional embodiments, Figure 2 As shown in some optional embodiments, the locking member 400 is a screw, and a third threaded hole 152 is formed in the second extension portion 150, the third threaded hole 152 is communicated with the second threaded hole 151, and the screw is threadedly connected in the third threaded hole 152 and can abut against the threaded portion 321. The abutment or separation of the screw and the threaded portion 321 can be achieved by screwing the screw. When the screw abuts against the threaded portion 321, the threaded portion 321 is locked by the locking member 400, and when the screw is separated from the threaded portion 321, the threaded portion 321 is unlocked from the locking member 400.

[0044] In some optional embodiments, a second locking member can also be arranged between the first extension 140 and the tool head 310 to achieve the relative fixation between the tool head 310 and the first extension 140. For example, the second locking member can be a pin, a waist-shaped slot is formed in the connecting portion 311 of the tool head 310, the length direction of the waist-shaped slot is consistent with the connecting direction of the connecting portion 311 and the tool tip portion 312, the pin is arranged in the waist-shaped slot, and the two ends of the pin pass through the waist-shaped slot and are clamped in the clamping groove of the first extension 140. In this way, the relative rotation between the tool head 310 and the base frame 100 can be prevented by the clamping between the pin and the clamping groove, so that the tool head 310 can be kept at a better cutting angle, and meanwhile, the pin can not be separated from the clamping groove during the lifting of the tool head 310, so as to adjust the distance between the tool head 310 and the roller 200.

[0045] For the specific structure of the detachable connection between the tool head 310 and the threaded portion 321, as shown in Figure 4 In some optional embodiments, the threaded portion 321 is provided with a plug-in hole 322, the tool head 310 includes a tool tip portion 312 and a connecting portion 311 connected with each other, and the connecting portion 311 is plugged into the plug-in hole 322. The connecting portion 311 is plugged into the plug-in hole 322 to achieve the connection between the tool head 310 and the threaded portion 321. The connecting portion 311 is pulled out of the plug-in hole 322 to achieve the disconnection between the tool head 310 and the threaded portion 321.

[0046] Optionally, the plug-in hole 322 is arranged on the end face of the threaded portion 321 in the axial direction, so that the acting force between the tool head 310 and the cable can prevent the tool head 310 from being separated from the plug-in hole 322 when the cable is stripped.

[0047] It should be noted that the plug-in hole 322 and the connecting portion 311 can be transitionally connected or gap-connected, so as to reduce the shaking of the connecting portion 311 in the plug-in hole 322.

[0048] Of course, the detachable connection between the tool head 310 and the threaded portion 321 can also be achieved by other detachable connection structures such as threaded connection or pin connection.

[0049] As shown in Figure 4 and Figure 5As shown, in some optional embodiments, an annular groove 313 extending along the circumference of the connecting portion 311 is arranged on the outer wall of the connecting portion 311, and a rubber ring is sleeved in the annular groove 313 and can abut against the inner wall of the insertion hole 322. The rubber ring is sleeved in the annular groove 313 to fix the rubber ring, and part of the rubber ring can be exposed outside the annular groove 313. When the connecting portion 311 is inserted into the insertion hole 322, the rubber ring can be elastically deformed under the joint action of the inner wall of the insertion hole 322 and the connecting portion 311, thereby increasing the friction between the connecting portion 311 and the inner wall of the insertion hole 322, fixing the connecting portion 311 relative to the threaded portion 321, and preventing the tool bit portion 310 from separating from the threaded portion 321 during transportation.

[0050] In some optional embodiments, the base frame 100 includes the first plate body 110 and the second plate body 120 arranged oppositely, and the third plate body 130 fixed between the first plate body 110 and the second plate body 120, the first plate body 110, the second plate body 120 and the third plate body 130 jointly define the accommodating cavity 101, the two ends of the roller 200 are rotatably connected to the first plate body 110 and the second plate body 120 respectively, and the first threaded hole 121 is formed in the third plate body 130. The roller 200 is rotatably connected to the first plate body 110 and the second plate body 120 at the same time, thereby improving the relative stability between the roller 200 and the base frame 100 during rotation. Meanwhile, the first plate body 110, the second plate body 120 and the third plate body 130 are used to form the base frame 100, thereby reducing the overall weight of the base frame 100 and facilitating the operator to hold the base frame 100.

[0051] It should be noted that the fixing mode between the first plate body 110, the second plate body 120 and the third plate body 130 can be one-piece forming or welding. In the embodiment, the first plate body 110, the second plate body 120 and the third plate body 130 are one-piece formed, thereby simplifying the structure of the base frame 100 and making the base frame 100 easier to manufacture.

[0052] In some optional embodiments, the first reinforcing rib 160 is arranged at the inflection of the first plate body 110 and the third plate body 130, and the second reinforcing rib 170 is arranged at the inflection of the second plate body 120 and the third plate body 130. The first reinforcing rib 160 can enhance the connection stability between the first plate body 110 and the third plate body 130, thereby avoiding deformation between the first plate body 110 and the second plate body 120 to affect the rotation of the roller 200. The second reinforcing rib 170 can enhance the connection stability between the second plate body 120 and the third plate body 130, thereby avoiding deformation between the second plate body 120 and the third plate body 130 to affect the rotation of the roller 200.

[0053] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Various simple modifications can be made to the technical solutions of the present disclosure within the technical concept of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0054] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present disclosure.

[0055] In addition, any combination of various different embodiments of the present disclosure can also be made, as long as it does not deviate from the idea of the present disclosure, and it should also be considered as disclosed in the present disclosure.

Claims

1. A handheld wire stripper, characterized in that, include: A base frame having a receiving cavity and a first threaded hole, the first threaded hole penetrating the base frame and communicating with the receiving cavity; A roller is located inside the receiving cavity and rotatably connected to the base frame. A limiting groove is formed on the surface of the roller around the circumference of the roller. The limiting groove has a tapered cross section and is used to receive the cable. The axial direction of the first threaded hole is towards the limiting groove. A peeling knife includes a blade head and a threaded portion. The threaded portion is screwed into a first threaded hole. One end of the blade head is detachably connected to the threaded portion. The other end of the blade head is located in the receiving cavity and faces the limiting groove. Along the axial direction of the first threaded hole, the projection of the blade head is located within the projection of the threaded portion.

2. The handheld wire stripper according to claim 1, characterized in that, The base frame is provided with a protruding first extension, which is located inside the receiving cavity. A guide hole is provided inside the first extension, which is coaxially arranged with the first threaded hole, and the diameter of the guide hole is greater than or equal to the diameter of the first threaded hole.

3. The handheld wire stripper according to claim 1, characterized in that, The base frame is provided with a protruding second extension, which is located outside the base frame. A second threaded hole is provided inside the second extension, which is coaxial with the first threaded hole. The threaded part is screwed into the first threaded hole and the second threaded hole.

4. The handheld wire stripper according to claim 3, characterized in that, The peeling knife also includes a handle portion connected to the end of the threaded portion away from the head of the knife, and the outer diameter of the handle portion is equal to the outer diameter of the second extension portion.

5. The handheld wire stripper according to claim 3, characterized in that, The handheld wire stripper also includes a locking member for unlockably locking the threaded portion to the second extension, thereby restricting rotation of the threaded portion relative to the second extension.

6. The handheld wire stripper according to claim 5, characterized in that, The locking element is a screw, and a third threaded hole is formed on the second extension. The third threaded hole communicates with the second threaded hole, and the screw is threadedly connected to the third threaded hole and can abut against the threaded portion.

7. The handheld wire stripper according to claim 1, characterized in that, The threaded portion has an insertion hole, and the cutter head includes a connected cutting tip and a connecting portion, with the connecting portion inserted into the insertion hole.

8. The handheld wire stripper according to claim 7, characterized in that, An annular groove extending circumferentially along the outer wall of the connecting part is provided, and a rubber ring is fitted inside the annular groove, which can abut against the wall of the insertion hole.

9. The handheld wire stripper according to any one of claims 1-8, characterized in that, The base frame includes a first plate and a second plate disposed opposite to each other, and a third plate fixed between the first plate and the second plate. The first plate, the second plate and the third plate together define the receiving cavity. The two ends of the roller are rotatably connected to the first plate and the second plate, respectively. The first threaded hole is formed on the third plate.

10. The handheld wire stripper according to claim 9, characterized in that, A first reinforcing rib is provided at the bend between the first plate and the third plate, and a second reinforcing rib is provided at the bend between the second plate and the third plate.

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