Protective device of network cable clamp

Abstract

The invention relates to the technical field of network cable pliers, in particular to a protection device of a network cable plier, which comprises a network cable plier body, and cutters are rotatably arranged at the upper ends of the inner walls of two handles of the network cable plier body. Angle adjusting assemblies which enable cutters to rotate to increase the contact area between the cutters and a wire body during cutting are arranged in handles of the network cable pliers body, and a clamping assembly used for lifting the contact area between the cutters and the wire body during cutting is arranged on one side of the middle of the network cable pliers body. The side, away from the clamping assembly, of the middle of the network cable plier body is provided with an anti-sputtering assembly used for preventing sputtering caused by too short cut cable bodies, the angle adjusting assembly comprises sliding rods which are slidably connected to the inner sides of the middles of handles of the two network cable plier bodies, and a reset spring is fixedly connected between the two sliding rods. Compared with the prior art, the actual requirement that in the prior art, due to the fact that one end of the cutter is prone to abrasion, a network is unstable after long-time use is met.

Description

Technical Field

[0001] The present invention relates to the technical field of wire crimping pliers, and in particular to a protective device for wire crimping pliers. Background Art

[0002] As the medium with the fastest network data transmission speed at present, optical fiber has been widely popularized and applied. It needs to be crimped through a precise connection terminal "RJ45 connector", and then the crimped RJ45 connector is connected to other switching devices to ensure the stable transmission of network signals. In modern network communication, wire crimping pliers, as an important network application tool, are widely used in the production and maintenance of network cables. Wire crimping pliers are mainly used to crimp the RJ45 connectors of network cables to ensure the firmness of the network cable connection and the reliability of data transmission.

[0003] In the prior art, a wire crimping plier is proposed in a Chinese patent document with the publication number of CN117293617B, which includes a plier head, a plier handle and a pulley assembly. The plier head includes a fixed base and a sliding base, and the sliding base is slidably matched with the fixed base; the plier handle includes a pair of base handles and a pair of handles; the outer side of the front end of the base handle is rotatably matched with the fixed base, and the inner side of the front end of the base handle is coupled with the sliding base; the rear end of the base handle is rotatably connected to the handle, and the handle includes a holding part and a traction rod; the pulley assembly includes a fixed pulley group, a movable pulley group and a traction rope. The fixed pulley group is fixedly installed in the fixed base, the movable pulley group is installed on the sliding base, the first end of the traction rope is fixed, and the second end of the traction rope bypasses the fixed pulley group and the movable pulley group multiple times. However, the same as the traditional method is that the cutter is fixedly connected to the inner side of the upper handle of the wire crimping plier. However, this traditional fixed connection method, while bringing operational convenience, also implies an undeniable drawback: that is, when the cutter rotates with the handle, its posture is not always horizontal relative to the wire to be cut. This non-horizontal contact state causes one end of the cutter to often contact the wire earlier than the other end. Thus, at the moment of cutting, all the squeezing forces are concentrated at the tip of the cutter, forming a local high-pressure area. Over time, this unbalanced force-bearing mode will inevitably accelerate the wear process of this end of the cutter, not only weakening its original sharpness, but even possibly causing the incision to be incomplete. When the state of the cutter is damaged, its cutting effect on the wire is greatly reduced, and the cutting surface of the wire body becomes uneven, showing a jagged shape. Such cutting quality directly increases the difficulty of subsequently docking the wire with the RJ45 connector, because the uneven cutting surface is difficult to closely fit with the contacts of the RJ45 connector, which may then lead to poor contact and ultimately affect the stability and transmission quality of the network signal, bringing unnecessary troubles to users.

[0004] Furthermore, we disclose a protective device for a wire crimper to meet the actual needs in the prior art where one end of the cutter is prone to wear, resulting in network instability after long-term use. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a protective device for a wire crimper to solve the problem in the prior art that one end of the cutter is prone to wear, resulting in network instability after long-term use.

[0006] Based on the above purpose, the present invention provides a protective device for a wire crimper, including a wire crimper body. At the upper ends of the inner walls of the two handles of the wire crimper body, cutters are rotatably arranged. Angle adjustment components for rotating the cutters to increase the contact area with the wire during cutting are arranged inside the handles of the wire crimper body. A clamping component for improving the clamping of the wire during cutting is arranged on one side of the middle of the wire crimper body. A splash-proof component for preventing the cut wire from being too short and causing sputtering is arranged on the side of the middle of the wire crimper body away from the clamping component.

[0007] Preferably, the angle adjustment component includes a slide bar slidably connected to the inner sides of the middles of the two handles of the wire crimper body, and a return spring is fixedly connected between the two slide bars.

[0008] Preferably, one end of the slide bar is slidably connected to the inside of the handle of the wire crimper body. A plurality of tooth grooves are evenly spaced and opened at the lower end on the side of the slide bar located inside the handle. The lower end of the slide bar is meshed and connected with a driving gear through the tooth grooves. The middle of the end face on one side of the driving gear is fixedly connected with a driven gear through a connecting shaft. A lifting rod is arranged on the side of the driven gear away from the return spring.

[0009] Preferably, the lifting rod is slidably connected to the inside of the handle of the wire crimper body. A plurality of tooth blocks are evenly spaced and opened at the lower end on the side of the lifting rod close to the slide bar. The lifting rod is meshed and connected with the driven gear through the tooth blocks.

[0010] Preferably, an opening groove is opened at the upper end of the lifting rod. Connecting rods are rotatably connected to the upper and lower ends inside the opening groove. The ends of the two connecting rods away from the lifting rod are rotatably connected to the cutter. A driving gear is fixedly connected to the middle of the cutter. The cutter is rotatably connected to the wire crimper body through the driving gear.

[0011] Preferably, two connecting springs are fixedly connected at intervals to the lower end on the side of the lifting rod away from the return spring. One end of each of the two connecting springs is fixedly connected with a slider, and the slider is slidably connected to the inside of the handle of the wire crimper body.

[0012] Preferably, the clamping assembly includes two first rotating seats fixedly connected to the upper ends of one side end faces of the handles of the wire cutter body. One end of each first rotating seat is rotatably connected to a first bracket. A telescopic spring is fixedly connected to the middle of one side end face of the first bracket. The end of the telescopic spring far from the first bracket is fixedly connected to the wire cutter body.

[0013] Preferably, a roller is provided at one end of the first bracket far from the first rotating seat. A limiting groove is formed in the middle of the outer wall of the roller. A rotating shaft is fixedly connected to the middle of the roller. The rotating shaft penetrates through both ends of the roller.

[0014] Preferably, sliding grooves are formed in the inner walls on both sides at one end of the first bracket where the roller is located. A limiting spring is fixedly connected to one side of the inner wall of each sliding groove. One end of the limiting spring is fixedly connected to a sliding block. The sliding block is slidably connected inside the sliding groove. One end of the rotating shaft is snap-fitted and rotatably connected inside the sliding block.

[0015] Preferably, the anti-sputtering assembly includes second rotating seats fixedly connected to the upper ends of the other side end faces of the two handles of the wire cutter body away from the roller. One end of each of the two second rotating seats is rotatably connected to a second bracket. One end of each of the two ends of one of the second brackets far from the second rotating seat is rotatably connected to a sleeve plate. One end of each of the two ends of the other second bracket far from the second rotating seat is rotatably connected to a sliding plate. The sleeve plate is sleeved outside the sliding plate.

[0016] Advantages of the present invention:

[0017] 1. For the protective device of this wire cutter, the angle adjustment assembly is provided to drive the cutter to rotate when pressing the handle, so that when cutting, the cutter can maximize the contact area with the wire body. This design not only optimizes the cutting efficiency, making the cutting smoother and faster, but more importantly, by increasing the contact area, it reduces the local pressure on the wire body during cutting, avoiding the uneven situation of wire body cutting after long-term use due to the pressure concentrating on one end of the cutter, and improving the network transmission quality.

[0018] 2. For the protective device of this wire cutter, the clamping assembly is provided to effectively enhance the firm clamping of the wire body during the cutting process. This design ensures that the wire body will not slide or shift due to external forces during cutting, thus ensuring the cutting accuracy and safety. The firm clamping reduces the cutting error caused by the shaking of the wire body, improves the work efficiency, and also avoids the possible secondary processing or wire body damage caused by inaccurate cutting.

[0019] 3. The protective device of this network cable pliers effectively prevents debris spatter caused by too short wire bodies or improper operations during cutting through the provided anti-spatter component, improving the safety of using the network cable pliers. By effectively blocking or guiding the debris generated during cutting, it reduces the potential harm risk of debris to parts such as the operator's eyes and skin, and improves the cleanliness and safety of the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic three-dimensional structure diagram of the front end of the present invention;

[0022] Figure 2 It is a schematic partial three-dimensional structure diagram of the rear end of the present invention;

[0023] Figure 3 It is a schematic partial three-dimensional structure diagram of the stabilizing component of the present invention;

[0024] Figure 4 It is a schematic three-dimensional structure diagram of the connection between the roller and the first bracket of the present invention;

[0025] Figure 5 It is a schematic three-dimensional structure diagram of the anti-spatter component of the present invention;

[0026] Figure 6 It is a schematic three-dimensional structure diagram of the cutter angle adjustment component of the present invention;

[0027] Figure 7 is Figure 6 an enlarged view of part A in

[0028] The labels in the figure are:

[0029] 1. Network cable pliers body; 2. Roller; 3. Cutter; 4. First bracket; 5. Return spring; 6. Limit groove; 7. Telescopic spring; 8. First rotating seat; 9. Rotating shaft; 10. Limit spring; 11. Sliding block; 12. Second bracket; 13. Sleeve plate; 14. Slide plate; 15. Second rotating seat; 16. Link; 17. Open slot; 18. Tooth groove; 19. Connecting spring; 20. Slide block; 21. Slide rod; 22. Lifting rod; 23. Tooth block; 24. Driven gear; 25. Driving gear; 26. Slide groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to specific embodiments.

[0031] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention pertains. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0032] As Figures 1 to 7 shown, a protective device for a network cable pliers includes a network cable pliers body 1. At the upper ends of the inner walls of the two handles of the network cable pliers body 1, cutting knives 3 are rotatably arranged. Angle adjusting components for rotating the cutting knives 3 to increase the contact area with the wire body during cutting are arranged inside the handles of the network cable pliers body 1. A clamping component for improving the clamping of the wire body during cutting is arranged on one side of the middle part of the network cable pliers body 1. A splash-proof component for preventing splashing caused by the cutting wire body being too short is arranged on the side of the middle part of the network cable pliers body 1 away from the clamping component. By setting the angle adjusting component, when pressing the handle, the cutting knife 3 can be driven to rotate, so that during cutting, the cutting knife 3 can maximize the contact area with the wire body. This design not only optimizes the cutting efficiency and makes the cutting smoother and faster, but more importantly, by increasing the contact area, the local pressure on the wire body during cutting is reduced, avoiding the uneven cutting of the wire body after long-term use due to the pressure concentrating on one end of the cutting knife 3, and improving the network transmission quality. And by setting the clamping component, the firm clamping of the wire body during cutting is effectively enhanced. This design ensures that the wire body will not slide or shift due to external forces during cutting, thus ensuring the cutting accuracy and safety. The firm clamping reduces the cutting error caused by the shaking of the wire body, improves the work efficiency, and also avoids the secondary processing or wire body damage that may be caused by inaccurate cutting. In addition, by setting the splash-proof component, the splashing of debris caused by the wire body being too short or improper operation during cutting is effectively prevented, improving the safety of using the network cable pliers. By effectively blocking or guiding the debris generated by cutting, the potential harm risk of the debris to the operator's eyes, skin and other parts is reduced, and the cleanliness and safety of the working environment are improved.

[0033] Furthermore, as Figure 1 , Figure 2 , Figure 6 , Figure 7As shown in the figure, the angle adjustment component includes a slide bar 21 slidably connected to the inner sides of the middle parts of the handles of two wire crimping pliers bodies 1. A return spring 5 is fixedly connected between the two slide bars 21. One end of the slide bar 21 is slidably connected inside the handle of the wire crimping pliers body 1. A plurality of tooth grooves 18 are evenly spaced and opened at the lower end on one side of the slide bar 21 located inside the handle. The lower end of the slide bar 21 is meshed and connected with a driving gear 25 through the tooth grooves 18. The middle part of one end face of the driving gear 25 is fixedly connected with a driven gear 24 through a connecting shaft. A lifting rod 22 is arranged on the side of the driven gear 24 away from the return spring 5. The lifting rod 22 is slidably connected inside the handle of the wire crimping pliers body 1. A plurality of tooth blocks 23 are evenly spaced and opened at the lower end on one side of the lifting rod 22 close to the slide bar 21. The lifting rod 22 is meshed and connected with the driven gear 24 through the tooth blocks 23. An opening groove 17 is opened at the upper end of the lifting rod 22. Both the upper and lower ends inside the opening groove 17 are rotatably connected with a connecting rod 16. The ends of the two connecting rods 16 away from the lifting rod 22 are rotatably connected with a cutter 3. The middle part of the cutter 3 is fixedly connected with the driving gear 25. The cutter 3 is rotatably connected to the handle of the wire crimping pliers body 1 through the driving gear 25. Two connecting springs 19 are fixedly connected at intervals at the lower end on the side of the lifting rod 22 away from the return spring 5. One end of each of the two connecting springs 19 is fixedly connected with a slider 20. The slider 20 is slidably connected inside the handle of the wire crimping pliers body 1. When the user presses the handle on the wire crimping pliers body 1, both ends of the return spring 5 will contract inward under the extrusion of the slide bar 21. Since the slide bar 21 is slidably connected to the handle, the slide bar 21 will be guided by the slide hole connected to the handle to maintain horizontal movement. At this time, the return spring 5 will be slightly bent but within the bearing range of the return spring 5. By moving the slide bar 21 to one side, the driving gear 25 can be driven to rotate counterclockwise through the tooth grooves 18. The counterclockwise rotation of the driving gear 25 drives the driven gear 24 to rotate counterclockwise. The driven gear 24 drives the lifting rod 22 to move downward through the action of the tooth blocks 23. The downward movement of the lifting rod 22 causes the two connecting rods 16 that were originally horizontal at the upper end to be skewed. Since the cutter 3 is rotatably connected to the inside of the handle of the wire crimping pliers body 1 through the driving gear 25, the skewing of the connecting rod 16 can drive the cutter 3 to rotate counterclockwise around the driving gear 25, thereby completing the angle adjustment work of the cutter 3. When the lifting rod 22 moves upward, the upper end of the lifting rod 22 will be slightly skewed. The mutual cooperation of the slider 20 and the connecting spring 19 ensures the movement stability of the lifting rod 22, ensuring the normal realization of the angle adjustment work. Through the above structure, the contact area between the cutter 3 and the wire body can be increased, the local pressure on the wire body during cutting is reduced, and the situation that the wire body is cut unevenly after long-term use due to the pressure concentrating on one end of the cutter 3 is avoided, improving the network transmission quality.

[0034] Further, as Figure 1 and Figure 3 、Figure 4 As shown in the figure, the clamping assembly includes two first rotating seats 8 fixedly connected to the upper ends of one side end faces of the handles of the wire cutter body 1. One end of the first rotating seat 8 is rotatably connected to a first bracket 4. The middle of one side end face of the first bracket 4 is fixedly connected to a telescopic spring 7. The end of the telescopic spring 7 away from the first bracket 4 is fixedly connected to the wire cutter body 1. The end of the first bracket 4 away from the first rotating seat 8 is provided with a roller 2. A limiting groove 6 is formed in the middle of the outer wall of the roller 2. A rotating shaft 9 is fixedly connected to the middle of the roller 2. The rotating shaft 9 penetrates through both ends of the roller 2. Both inner walls on one side of the first bracket 4 at one end of the roller 2 are provided with sliding grooves 26. One side of the inner wall of the sliding groove 26 is fixedly connected to a limiting spring 10. One end of the limiting spring 10 is fixedly connected to a sliding block 11. The sliding block 11 is slidably connected inside the sliding groove 26. One end of the rotating shaft 9 is snap-fitted and rotatably connected inside the sliding block 11. When the wire cutter clamps the wire body, first place the wire body between the two rollers 2 and then between the two cutting blades 3. When pressing the handle on the wire cutter body 1 to a certain moving degree, the two rollers 2 come into contact, and the limiting groove 6 on their outer walls can be used for clamping and limiting work to improve the stability of the wire body. When continuously pressing the handle, the first bracket 4 will rotate outwards, and under the action of the telescopic spring 7, the first bracket 4 can maintain a certain pressure on the wire body. In addition, the rotating shaft 9 on the roller 2 is rotatably connected to the sliding block 11 inside the sliding groove 26. The sliding block 11 is slidably connected to the sliding groove 26 and is limited by the limiting spring 10, so that during use, the roller 2 can be adjusted horizontally, thereby ensuring the contact stability between the roller 2 and the wire body during use and increasing the clamping effect on it.

[0035] Further, as Figure 2 and Figure 5 shown in the figure, the anti-sputtering assembly includes second rotating seats 15 fixedly connected to the upper ends of the two handles of the wire cutter body 1 on the side away from the roller 2. One end of each of the two second rotating seats 15 is rotatably connected to a second bracket 12. Both ends of one of the second brackets 12 away from the second rotating seat 15 are rotatably connected to a sleeve plate 13. Both ends of the other second bracket 12 away from the second rotating seat 15 are rotatably connected to a sliding plate 14. The sleeve plate 13 is sleeved outside the sliding plate 14. When the handle rotates, the sliding plate 14 will slide inside the sleeve plate 13 to shield the areas on both sides in front of the cutting blades 3, so that during use, it effectively prevents the sputtering of debris caused by the wire body being too short or improper operation during the cutting process, improving the safety of use.

[0036] Working principle: During operation, the user first places the network cable to be cut between the two rollers 2 and initially fixes the position of the network cable using the limiting grooves 6 on the outer wall of the rollers 2 to ensure its stability before cutting. Subsequently, press the handle of the network cable pliers body 1. As the handle closes, the return spring 5 is compressed, pushing the sliding rod 21 to move horizontally along the sliding hole inside the handle. The tooth groove 18 on the sliding rod 21 meshes with the driving gear 25, driving it to rotate counterclockwise. The driving gear 25 is connected to the driven gear 24, thereby driving the lifting rod 22 to descend. The descent of the lifting rod 22, through the action of the connecting rod 16, causes the cutter 3 originally installed horizontally to rotate counterclockwise around the driving gear 25, achieving angle adjustment. This design significantly increases the contact area between the cutter 3 and the network cable, disperses the local pressure during cutting, avoids the problem of uneven cutting caused by pressure concentration, improves the cutting accuracy and the network cable transmission quality. At the same time, as the handle closes further, the first bracket 4 rotates outward under the elastic force of the telescopic spring 7, applying a stable clamping force to the network cable. The rotating shaft 9 on the roller 2, under the combined action of the sliding block 11 in the sliding groove 26 and the limiting spring 10, can not only rotate smoothly to adapt to the shape of the network cable but also ensure the clamping stability. Finally, when the handle is fully closed, the cutter 3 cuts into the network cable at the optimal angle to complete the cutting action, and the anti-sputtering component effectively prevents the possible splashing of debris during the cutting process, ensuring the safety and cleanliness of the operating environment. During the whole process, each component works together to achieve the high efficiency, precision and safety of network cable cutting.

[0037] Those of ordinary skill in the art should understand that the discussion of any embodiment above is only exemplary, and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0038] The present invention aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, 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 protective device for a network cable pliers, comprising a network cable pliers body (1), characterized in that: The upper ends of the inner walls of the two handles of the mesh wire clamp body (1) are both rotatably provided with cutters (3), and the interiors of the handles of the mesh wire clamp body (1) are both provided with angle adjustment components for rotating the cutters (3) to increase the contact area with the wire body during cutting. A clamping component for improving the wire body during cutting is provided on one side of the middle portion of the mesh wire clamp body (1), and an anti-splashing component for preventing the cut wire body from being too short and causing splashing is provided on one side of the middle portion of the mesh wire clamp body (1) away from the clamping component.

2. The protective device for a network cable pliers according to claim 1, characterized in that: The angle adjustment assembly comprises two slide bars (21) slidably connected to the inner sides of the middle parts of the handles of the network cable clamp bodies (1), and a reset spring (5) is fixedly connected between the two slide bars (21).

3. The protective device of a network cable pliers according to claim 2, characterized in that: One end of the slide bar (21) is slidably connected to the inside of the handle of the network cable clamp body (1); a plurality of tooth grooves (18) are evenly spaced at the lower end of one side of the slide bar (21) located inside the handle; the lower end of the slide bar (21) is meshedly connected to a driving gear (25) through the tooth grooves (18); a driven gear (24) is fixedly connected to the middle of one end surface of the driving gear (25) through a connecting shaft; a lifting rod (22) is provided on the side of the driven gear (24) away from the reset spring (5).

4. The protective device for a network cable pliers according to claim 3, characterized in that: The lifting rod (22) is slidably connected to the inside of the handle of the network cable clamp body (1); a plurality of tooth blocks (23) are evenly spaced apart at the lower end of the end surface of one side of the lifting rod (22) close to the slide bar (21); and the lifting rod (22) is meshed and connected with the driven gear (24) through the tooth block (23).

5. The protective device for a network cable pliers according to claim 4, wherein: An open slot (17) is provided at the upper end of the lifting rod (22), and the upper and lower ends of the opening slot (17) are rotatably connected to connecting rods (16). One end of the two connecting rods (16) away from the lifting rod (22) is rotatably connected to the cutter (3), and a driving gear (25) is fixedly connected to the middle of the cutter (3). The cutter (3) is rotatably connected to the network cable clamp body (1) through the driving gear (25).

6. The protective device of a network cable pliers according to claim 5, characterized in that: The lower end of the end surface of one side of the lifting rod (22) away from the reset spring (5) is fixedly connected to two connecting springs (19) at intervals, and one end of each of the two connecting springs (19) is fixedly connected to a slider (20), and the slider (20) is slidably connected to the inside of the handle of the network cable clamp body (1).

7. The protective device of a network cable pliers according to claim 1, characterized in that: The clamping assembly comprises two first rotating seats (8) fixedly connected to the upper end of one side end surface of the handle of the network wire clamp body (1); one end of the first rotating seat (8) is rotatably connected to the first bracket (4); a telescopic spring (7) is fixedly connected to the middle part of one side end surface of the first bracket (4); and the end of the telescopic spring (7) away from the first bracket (4) is fixedly connected to the network wire clamp body (1).

8. The protective device for a network cable pliers according to claim 7, characterized in that: A roller (2) is provided at one end of the first bracket (4) away from the first rotating seat (8), a limiting groove (6) is provided in the middle of the outer wall of the roller (2), and a rotating shaft (9) is fixedly connected to the middle of the roller (2), and the rotating shaft (9) passes through both ends of the roller (2).

9. The protective device for a network cable pliers according to claim 8, characterized in that: On both inner walls at one end of the roller (2), a chute (26) is provided. On one side of the inner wall of the chute (26), a limiting spring (10) is fixedly connected. One end of the limiting spring (10) is fixedly connected with a sliding block (11). The sliding block (11) is slidably connected inside the chute (26). One end of the rotating shaft (9) is snap-fitted and rotatably connected inside the sliding block (11).

10. The protective device of a network cable pliers according to claim 1, wherein: The anti-sputtering component includes a second rotating seat (15) fixedly connected to the upper end of the end faces of the two handles of the network cable pliers body (1) on the side far from the roller (2). One end of each of the two second rotating seats (15) is rotatably connected with a second bracket (12). At both ends of one of the second brackets (12) far from the second rotating seat (15), a sleeve plate (13) is rotatably connected. At both ends of the other second bracket (12) far from the second rotating seat (15), a sliding plate (14) is rotatably connected. The sleeve plate (13) is sleeved outside the sliding plate (14).

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