Depth adjustment mechanism of a network cable crimping tool and network cable crimping tool with adjustable crimping depth

Abstract

The application discloses a depth adjusting mechanism of a network cable clamp, a network cable clamp with adjustable crimping depth, and an adjusting method and a repairing method thereof. The depth adjusting mechanism comprises an eccentric adjusting part, a gear operating part, a gear positioning structure and an elastic resetting part. The eccentric adjusting part is rotatably arranged on the movable handle and has an eccentric inner hole hinged with the upper end of the push rod assembly. The gear operating part is in transmission connection with the eccentric adjusting part, and the gear positioning structure comprises a plurality of gear positioning parts and matching parts. After the gear operating part is unlocked and pushed along the arc, the eccentric adjusting part is driven to rotate, the initial position of the push rod assembly is changed, and thus the crimping depth is adjusted. The application is accurate in adjustment, convenient in operation and reliable in locking. The double-push-rod transmission structure is adopted, transmission is stable, the application is suitable for various specifications of crystal heads, and the application can perform secondary deepening crimping repair on the crystal heads with poor crimping, without the need of cutting and reworking, so that material and working hours are saved.

Description

Technical Field

[0001] This invention relates to the field of crimping crimping technology, and in particular to a crimping crimping depth adjustment mechanism, a crimping ... Background Technology

[0002] A crimping tool is a specialized tool used to crimp RJ45 connectors to network cables. It is widely used in network cabling, low-voltage engineering, and other fields. During the crimping process, the crimping blade of the crimping tool needs to press the metal contacts of the RJ45 connector into the wire core of the network cable, so that the metal contacts pierce the insulation layer of the wire core and form a reliable electrical connection with the copper wire.

[0003] Different sizes of RJ45 connectors (such as Cat5e, Cat6, and Cat7) require different crimping depths due to variations in the height and material of their metal contacts. If the crimp is too deep, it can damage the plastic housing of the connector or cause excessive deformation of the metal contacts; if the crimp is too shallow, the metal contacts will not be able to fully penetrate the wire insulation layer, leading to poor contact or unstable signal transmission.

[0004] Currently, there are various solutions for adjusting the depth of network cable clamps in existing technologies, mainly including the following categories: The first type is the screw-adjustable type, which changes the crimping height by rotating an adjustment screw to accommodate different sizes of RJ45 connectors. However, this method requires tools or manual screw tightening, resulting in low adjustment efficiency. Furthermore, the screw is prone to loosening due to vibration during use, causing changes in the crimping depth and affecting the crimping quality.

[0005] The second type is the eccentric shaft pivot type, as disclosed in some existing patent documents. In this type, the eccentric shaft is directly used as the hinge axis between the clamp body and the movable handle. Rotating the eccentric shaft changes the handle's limit pressing position, thereby adjusting the pressing depth. This approach has the following drawbacks: First, the eccentric shaft simultaneously serves as both the hinge pivot and the adjustment mechanism, bearing the entire pressing force load. This leads to rapid wear between the shaft and the hole, resulting in decreased adjustment accuracy after prolonged use. Second, the eccentric shaft adjustment is usually achieved through an end knob located on the side of the clamp body, requiring both hands for operation, which is inconvenient. Third, as a pivot, the eccentricity of the eccentric shaft is limited by the dimensions of the hinge structure, resulting in a limited adjustment range.

[0006] The third type is the adjustable pressure plate rotary type, which uses a rotary plate with different sizes of crimping teeth distributed circumferentially on the pliers head. Rotating the rotary plate switches between different sizes of crimping teeth. This solution can only switch the size of the crimping teeth, and cannot finely adjust the crimping depth within the same size. In addition, the rotary plate structure increases the size and weight of the pliers head.

[0007] In addition, some crimping tools use a mechanical stop structure, which limits the crimping stroke with pins to prevent over-pressure. However, this structure only has a fixed stop position and cannot achieve multi-position adjustment, so it cannot adapt to the crimping needs of different sizes of RJ45 connectors.

[0008] More importantly, a common problem that has not been addressed by existing technology exists in actual construction: even when crimped to the standard depth, the RJ45 connector often fails to connect. Reasons include: manufacturing tolerances in the metal contacts of the RJ45 connector; differences in the diameter of the wire cores between different brands of network cables; wear and tear on the crimping die leading to deviations in crimping depth; and uneven force applied by the operator. Even after crimping to the standard depth, some metal contacts may not have fully pierced the insulation layer of the wire core, resulting in poor contact or no signal transmission.

[0009] Even more challenging is the repair of crimped RJ45 connectors. If a crimped RJ45 connector becomes loose or has poor contact, ordinary network cable crimping tools cannot deepen the crimp to repair it because the crimping depth is a fixed standard value. The only solution is to cut off the RJ45 connector and redo it, which wastes both materials and time.

[0010] Existing depth adjustment solutions are designed to accommodate different sizes of RJ45 connectors, but they do not address the practical pain points of "no continuity after standard crimping" and "repairing crimped RJ45 connectors." Existing adjustment solutions either lack sufficient precision to achieve micro-deepening compensation, or are cumbersome to operate, making quick adjustments inconvenient during on-site construction.

[0011] In summary, existing network cable crimping depth adjustment solutions generally suffer from inconvenient operation, low precision, unreliable locking, and are unable to effectively solve problems such as poor standard crimping and repair of crimped RJ45 connectors. There is an urgent need for a network cable crimping depth adjustment mechanism that is simple in structure, easy to operate, precise in adjustment, and reliable in locking. Summary of the Invention

[0012] The purpose of this invention is to overcome the shortcomings of the prior art and provide a crimping depth adjustment mechanism for network cable crimpers, a network cable crimper with adjustable crimping depth, and its adjustment and repair methods. By integrating the eccentric adjustment mechanism onto the movable handle and using a press-type gear switching and slot locking mechanism, it can not only adapt to the crimping requirements of different specifications of RJ45 connectors, but also solve the problems of compensation adjustment for poor contact after standard crimping and the repair of crimped RJ45 connectors.

[0013] To achieve the above objectives, the present invention adopts the following technical solution: A depth adjustment mechanism for a network cable clamp includes an eccentric adjustment component, a stop operation component, a stop positioning structure, and an elastic reset component.

[0014] The eccentric adjustment component is rotatably mounted on the movable handle of the network cable clamp. The eccentric adjustment component has an eccentric inner hole for hinged to the upper end of the push rod assembly of the network cable clamp. When the eccentric adjustment component rotates, the position of the eccentric inner hole changes, thereby changing the initial position of the push rod assembly.

[0015] The gear shifting component is movably mounted on the movable handle. The gear shifting component is connected to the eccentric adjustment component in a transmission manner. Operating the gear shifting component can drive the eccentric adjustment component to rotate.

[0016] The gear positioning structure includes multiple gear positioning parts and a mating part that cooperates with the gear operating component. The mating part can selectively cooperate with any one of the multiple gear positioning parts to lock the gear operating component in the corresponding gear.

[0017] The elastic reset member is disposed between the gear shifting member and the movable handle, and is used to apply an elastic force to the gear shifting member to keep the mating part and the gear positioning part in engagement.

[0018] After the gear shifting mechanism overcomes the elastic force of the elastic reset member and disengages the mating part from the gear positioning part, moving the gear shifting mechanism can drive the eccentric adjustment member to rotate, thereby adjusting the crimping depth of the network cable clamp.

[0019] Furthermore, the eccentric adjustment component is an eccentric bushing, which is used to insert into the push hole of the movable handle and can rotate around the axis of the push hole; the outer circular surface of the eccentric bushing is coaxially engaged with the push hole, and the eccentric bushing is provided with an eccentric inner hole, the axis of the eccentric inner hole being eccentrically set with the axis of the outer circular surface of the eccentric bushing.

[0020] Furthermore, a transmission lever is connected to the gear shifting component, and the transmission lever is connected to the eccentric adjustment component. When the gear shifting component moves, it drives the eccentric adjustment component to rotate through the transmission lever.

[0021] Furthermore, the outer circumferential surface of the eccentric adjustment member is provided with positioning external teeth, and the transmission lever is provided with positioning internal teeth. The positioning internal teeth mesh with the positioning external teeth, so that the transmission lever and the eccentric adjustment member form a tooth meshing transmission connection.

[0022] Furthermore, the transmission lever and the eccentric adjustment component are integrally formed.

[0023] Furthermore, the gear shifting component includes an adjustment button and a positioning plate. The adjustment button is exposed on the surface of the movable handle, and the positioning plate is fixedly connected to the adjustment button and extends into the movable handle. When the adjustment button is pressed, the positioning plate compresses the elastic reset member and disengages the mating part from the gear shifting positioning part.

[0024] Furthermore, the plurality of gear positioning parts are multi-slot slots arranged along an arc path, the center of the arc path coinciding with the rotation center of the eccentric adjustment member; the mating parts are the two ends of the positioning plate on the gear operation member, and the two ends of the positioning plate can be respectively engaged in the multi-slot slots.

[0025] Furthermore, it also includes a fixing plate for fixing relative to the movable handle, and the elastic reset member is disposed between the gear shifting member and the fixing plate, with one end of the elastic reset member abutting against the gear shifting member and the other end abutting against the fixing plate.

[0026] The present invention also provides a network cable clamp with adjustable crimping depth, including a fixed component, a movable handle, a crimping tooth assembly, a push rod assembly, and the aforementioned depth adjustment mechanism.

[0027] The movable handle is hinged to the fixed component.

[0028] The push rod assembly is connected between the movable handle and the pressing tooth assembly. When the movable handle is rotated, the push rod assembly drives the pressing tooth assembly to perform a pressing action.

[0029] The depth adjustment mechanism is located on the movable handle and is used to adjust the pressing depth of the pressing tooth assembly.

[0030] Furthermore, the push rod assembly includes a primary linkage push rod and a secondary linkage push rod. The upper end of the primary linkage push rod is hinged to the eccentric inner hole of the depth adjustment mechanism via a first pivot, and the lower end of the primary linkage push rod is hinged to the upper end of the secondary linkage push rod via a second pivot. The lower end of the secondary linkage push rod is connected to the pressure tooth assembly.

[0031] Furthermore, the secondary linkage push rod is provided with a sliding groove, and the fixed component is provided with a connecting rod sliding shaft. The connecting rod sliding shaft is inserted into the sliding groove to form a sliding fit, and the secondary linkage push rod slides along the connecting rod sliding shaft when it moves.

[0032] Furthermore, the fixing component is provided with a crimping mold base, which is used to place the crystal head to be crimped; the plurality of positioning positions include at least a standard position corresponding to the standard crimping depth and at least one deeper position than the standard depth.

[0033] Furthermore, the movable handle is provided with a rotating hole, and the fixed component is provided with a handle pivot. The rotating hole is fitted onto the handle pivot to form a hinge.

[0034] The present invention also provides a method for adjusting the crimping depth of a network cable crimping tool, using the aforementioned network cable crimping tool, the method comprising the following steps: S1. Press the gear position operating component to overcome the elastic force of the elastic reset component, causing the mating part to disengage from the current gear position positioning part; S2. While maintaining the pressing state, move the gear operation component along the adjustment direction to drive the eccentric adjustment component to rotate. The position of the eccentric inner hole of the eccentric adjustment component changes, thereby changing the initial position of the push rod assembly. S3. When the gear shifting component moves to the target gear position positioning part, the gear shifting component is released. Under the elastic force of the elastic reset component, the mating part is engaged in the target gear position positioning part, thus completing gear locking.

[0035] This invention also provides a method for repairing faulty RJ45 crimped connectors, using the aforementioned network cable crimping tool, the method comprising the following steps: T1. Adjust the gear shifting device to the deeper setting that is deeper than the standard crimping depth; T2. Place the crimped but poorly contacted RJ45 connector into the crimping die. T3. Squeeze the movable handle to drive the push rod assembly and the crimping tooth assembly to perform a secondary crimping of the crystal head, so that the metal contacts of the crystal head are further pressed into the wire core of the network cable, improving the contact.

[0036] Furthermore, in step T1, different depth settings are selected according to the degree of poor crimping: for slight poor contact, one depth setting is selected, and for severe poor contact, two or more depth settings are selected.

[0037] Furthermore, the crimping defects include: the RJ45 connector not being connected after standard depth crimping, the RJ45 connector becoming loose and having poor contact after a period of use, and insufficient crimping due to RJ45 connector tolerances or wire diameter differences.

[0038] Compared with the prior art, the present invention has the following beneficial effects: 1. High adjustment precision with micro-compensation: Utilizing an eccentric bushing structure, the initial position of the first pivot is changed by rotating the eccentric bushing. Precise control of the eccentricity allows for fine-tuning and accurate positioning of the crimping depth. When poor contact occurs after standard depth crimping, the crimping depth can be finely adjusted to compensate for insufficient crimping caused by RJ45 head tolerances, wire diameter differences, or mold wear, eliminating the need to remake the RJ45 head.

[0039] 2. Repairing faulty crimped RJ45 connectors: By deepening the crimp setting, loose or poorly connected RJ45 connectors can be repaired by deepening the crimp again, avoiding the waste of cutting and redoing, and saving materials and labor time. This is a function that existing standard network cable crimpers and ordinary adjustable network cable crimpers cannot achieve.

[0040] 3. Convenient and efficient operation: It adopts a push-button adjustment button. Simply press it to push and adjust, and release it to lock automatically. The gear switching can be completed with one hand, making it quick and convenient for on-site construction.

[0041] 4. Stable and reliable locking: The elastic reset component continuously applies elastic force to the positioning plate, ensuring that both ends of the positioning plate remain engaged with the slot, effectively preventing gear shifting due to vibration or accidental contact during use, thus ensuring stable and reliable locking.

[0042] 5. Clear and intuitive settings: Multiple slots correspond to multiple crimping depth settings. Users can select the corresponding setting by inserting the positioning plate into different slots. The settings are clear and the operation is intuitive. It can be adapted to different specifications of RJ45 heads and can also achieve slight deepening compensation and repair deepening on the basis of standard depth.

[0043] 6. Smooth transmission and high precision: It adopts a double linkage transmission structure with a first-stage linkage push rod and a second-stage linkage push rod, combined with the sliding guide of the slide groove and the connecting rod shaft, so that the transmission is smooth, the pressing stroke is accurate, and the pressing quality is stable.

[0044] 7. Compact Structure and High Integration: The depth adjustment mechanism is integrated entirely within the movable handle, without increasing the overall size of the product, resulting in a compact structure. Furthermore, the adjustment mechanism directly engages with the push rod assembly, resulting in a short transmission chain, small gaps, fast adjustment response, and high precision. Attached Figure Description

[0045] Figure 1 An exploded view of the adjustable crimping depth wire clamp provided in an embodiment of the present invention.

[0046] Figure 2 A schematic diagram of the assembly structure of the adjustable crimping depth network cable clamp provided in an embodiment of the present invention (handle open).

[0047] Figure 3 This is a side view (handle open) of the adjustable crimping depth network cable clamp provided in an embodiment of the present invention.

[0048] Figure 4 A side view (handle closed) of the adjustable crimping depth network cable clamp provided in an embodiment of the present invention.

[0049] Figure 5 A partially enlarged cross-sectional view (locked state) of the depth adjustment mechanism provided in an embodiment of the present invention.

[0050] Figure 6 A partially enlarged cross-sectional view (press-to-unlock state) of the depth adjustment mechanism provided in an embodiment of the present invention.

[0051] Figure 7 This is a schematic diagram of the fit between the eccentric bushing and the transmission lever (split-tooth meshing type) provided in an embodiment of the present invention.

[0052] Figure 8 This is a schematic diagram illustrating the fit between the push rod assembly and the eccentric bushing provided in an embodiment of the present invention.

[0053] 1. Depth adjustment mechanism; 11. Positioning plate; 12. Eccentric bushing; 121. Eccentric inner hole; 123. Positioning outer tooth; 13. Adjustment button; 14. Elastic reset component; 16. Fixing plate; 17. Transmission lever; 171. Positioning inner tooth; 2. Movable handle; 21. Multi-slot slot; 22. Push hole; 23. Rotary hole; 3. Fixing component; 31. Pressing mold base; 32. Handle rotating shaft; 33. Connecting rod sliding shaft; 4. Push rod assembly; 41. First-level linkage push rod; 42. Second-level linkage push rod; 421. Slide groove; 43. First pivot; 44. Second pivot; 5. Pressing tooth assembly. Detailed Implementation

[0054] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0055] like Figures 1 to 8 As shown in the figure, an embodiment of the present invention provides a network cable crimping tool with adjustable crimping depth, including a fixed component 3, a movable handle 2, a crimping tooth assembly 5, a depth adjustment mechanism 1, and a push rod assembly 4.

[0056] The fixed component 3 serves as the base of the network cable clamp, and the movable handle 2 is hinged to the fixed component 3 via a handle pivot 32. Specifically, the movable handle 2 has a pivot hole 23, and the fixed component 3 has a handle pivot 32. The pivot hole 23 is fitted onto the handle pivot 32, allowing the movable handle 2 to rotate around the axis of the handle pivot 32.

[0057] The front end of the fixing component 3 is provided with a crimping mold base 31, which is used to place the crystal head to be crimped. The crimping tooth assembly 5 is disposed above the crimping mold base 31 and is used to crimp the crystal head.

[0058] The push rod assembly 4 is drively connected between the movable handle 2 and the pressure tooth assembly 5. The push rod assembly 4 includes a primary linkage push rod 41 and a secondary linkage push rod 42. The upper end of the primary linkage push rod 41 is connected to the depth adjustment mechanism 1 via a first pivot 43, and the lower end of the primary linkage push rod 41 is hinged to the upper end of the secondary linkage push rod 42 via a second pivot 44. The lower end of the secondary linkage push rod 42 is connected to the pressure tooth assembly 5.

[0059] The secondary linkage push rod 42 is provided with a sliding groove 421, and the fixed component 3 is provided with a connecting rod sliding shaft 33. The connecting rod sliding shaft 33 is inserted into the sliding groove 421 to form a sliding fit. When the movable handle 2 is gripped, the movable handle 2 rotates around the handle pivot 32, which drives the first pivot 43 to move through the depth adjustment mechanism 1. The first pivot 43 drives the primary linkage push rod 41 to move. The primary linkage push rod 41 drives the secondary linkage push rod 42 to slide along the connecting rod sliding shaft 33 through the second pivot 44. The secondary linkage push rod 42 drives the pressure tooth assembly 5 to move downward to press the crystal head placed on the pressing mold base 31.

[0060] The depth adjustment mechanism 1 is mounted on the movable handle 2 and is used to adjust the crimping depth. The depth adjustment mechanism 1 includes an eccentric bushing 12, an adjustment button 13, a positioning plate 11, an elastic reset member 14, a fixing plate 16, and a transmission lever 17.

[0061] The movable handle 2 is provided with a push hole 22, and the eccentric bushing 12 is inserted into the push hole 22 and can rotate around the axis of the push hole 22. The outer circular surface of the eccentric bushing 12 is coaxially engaged with the push hole 22. The eccentric bushing 12 is provided with an eccentric inner hole 121, and there is an eccentricity between the axis of the eccentric inner hole 121 and the axis of the outer circular surface of the eccentric bushing 12. The two ends of the first pivot 43 pass through the eccentric inner hole 121 and form a hinge with the eccentric bushing 12.

[0062] When the eccentric bushing 12 rotates around the axis of the push hole 22, the position of the eccentric inner hole 121 changes accordingly, thereby changing the initial position of the first pivot 43, which in turn changes the initial height of the push rod assembly 4, and finally adjusts the pressing depth.

[0063] The adjustment button 13 is slidably mounted on the movable handle 2. The upper part of the adjustment button 13 protrudes from the surface of the movable handle 2 for easy pressing by the user. The positioning plate 11 is fixedly connected to the lower part of the adjustment button 13 and moves up and down together with the adjustment button 13.

[0064] The fixing plate 16 is disposed below the positioning plate 11 and is fixed relative to the movable handle 2. The elastic reset member 14 is disposed between the positioning plate 11 and the fixing plate 16. In this embodiment, the elastic reset member 14 is a spring, with its upper end abutting against the positioning plate 11 and its lower end abutting against the fixing plate 16. Under the elastic force of the elastic reset member 14, the positioning plate 11 and the adjustment button 13 are always subjected to an upward pushing force.

[0065] The transmission lever 17 consists of two pieces, which are respectively disposed on the left and right sides of the fixed plate 16. The upper end of the transmission lever 17 is fixedly connected to the fixed plate 16.

[0066] The movable handle 2 is provided with a multi-slot slot 21, which is arranged along an arc path, and the center of the arc path coincides with the axis of the push hole 22. Both ends of the positioning plate 11 can be respectively engaged into the multi-slot slot 21 to achieve gear locking.

[0067] Under the elastic force of the elastic reset member 14, both ends of the positioning plate 11 remain engaged in the multi-slot slot 21, preventing the adjustment button 13 from moving along the arc path, thereby locking the gear position.

[0068] Example 1 (Split-tooth meshing type): like Figure 7 As shown, in this embodiment, the lower end of the transmission lever 17 is provided with a positioning internal tooth 171, and the outer circumferential surface of the eccentric bushing 12 is provided with a positioning external tooth 123, and the positioning internal tooth 171 meshes with the positioning external tooth 123.

[0069] The two ends of the positioning plate 11 pass through the left and right transmission levers 17 respectively, and can slide up and down relative to the transmission levers 17.

[0070] When adjusting the crimping depth, the user presses the adjustment button 13 downwards with their finger. The adjustment button 13 moves the positioning plate 11 downwards, compressing the elastic reset member 14, causing both ends of the positioning plate 11 to disengage from the multi-slot slot 21. While maintaining the pressed state, the user pushes the adjustment button 13 along an arc path. The adjustment button 13 moves the positioning plate 11 and the fixing plate 16 together along the arc path. The fixing plate 16 causes the left and right transmission levers 17 to swing. The transmission levers 17, through the meshing of the positioning internal teeth 171 and the positioning external teeth 123, drive the eccentric bushing 12 to rotate around the axis of the push hole 22. As the eccentric bushing 12 rotates, the position of the eccentric inner hole 121 changes, and the initial position of the first pivot 43 changes accordingly, thereby changing the initial height of the push rod assembly 4 and adjusting the crimping depth. When the adjustment button 13 is moved to the slot corresponding to the target gear, the adjustment button 13 is released. Under the elastic force of the elastic reset member 14, the positioning plate 11 bounces up and the two ends of the positioning plate 11 are locked into the corresponding slots, thus completing the gear locking.

[0071] Example 2 (in one piece): In this embodiment, the transmission lever 17 and the eccentric bushing 12 are integrally formed. The transmission lever 17 extends directly from the body of the eccentric bushing 12, forming a single integral part.

[0072] The two ends of the positioning plate 11 pass through the guide holes on the left and right transmission levers 17 respectively, and can slide up and down relative to the transmission levers 17.

[0073] When adjusting the crimping depth, the user presses the adjustment button 13, causing the positioning plate 11 to move downwards and disengage from the slot. The user then pushes the adjustment button 13 along an arc path. The adjustment button 13, through the positioning plate 11 and the fixing plate 16, drives the integrally formed transmission lever 17 and the eccentric bushing 12 to rotate around the axis of the push hole 22, thereby changing the position of the eccentric inner hole 121 and adjusting the crimping depth. After releasing the adjustment button 13, the positioning plate 11 springs up under the action of the elastic reset member 14 and engages with the slot, completing the locking process.

[0074] The advantages of this embodiment are that it has fewer parts, simpler assembly, smaller transmission clearance, and higher adjustment accuracy.

[0075] The working process of this invention is as follows: When adjusting the crimping depth: The user presses the adjustment button 13 downwards with their finger. The adjustment button 13 moves the positioning plate 11 downwards, compressing the elastic reset member 14, causing both ends of the positioning plate 11 to disengage from the multi-slot slot 21. While maintaining the pressed state, the user pushes the adjustment button 13 along an arc path. The adjustment button 13 moves the positioning plate 11 and the fixing plate 16 together along the arc path. The fixing plate 16 causes the left and right transmission levers 17 to swing, and the transmission levers 17 cause the eccentric bushing 12 to rotate around the axis of the push hole 22. As the eccentric bushing 12 rotates, the position of the eccentric inner hole 121 changes, and the initial position of the first pivot 43 changes accordingly, thereby changing the initial height of the push rod assembly 4 and adjusting the crimping depth. When the adjustment button 13 moves to the slot corresponding to the target gear, the user releases the adjustment button 13. Under the elastic force of the elastic reset member 14, the positioning plate 11 springs upwards, and both ends of the positioning plate 11 engage in the corresponding slot, completing the gear locking.

[0076] During standard crimping operation: Adjust button 13 to the standard position, place the crystal head into the crimping die base 31, and squeeze the movable handle 2. The movable handle 2 rotates around the handle shaft 32. The push hole 22 drives the first pivot 43 to move through the eccentric bushing 12. The first pivot 43 drives the first-stage linkage push rod 41 to move. The first-stage linkage push rod 41 drives the second-stage linkage push rod 42 to slide downward along the connecting rod slide shaft 33 through the second pivot 44. The second-stage linkage push rod 42 drives the crimping tooth assembly 5 to move downward for crimping. Since the depth adjustment mechanism 1 has adjusted the initial position of the first pivot 43 to the standard position, the crimping depth meets the standard requirements. During the crimping process, the elastic reset member 14 continuously presses against the positioning plate 11, and the positioning plate 11 maintains reliable engagement with the multi-slot slot 21, preventing position shift due to the reaction force of the crimping force.

[0077] When performing compensating crimping: If poor contact occurs in the RJ45 head after crimping to the standard depth, switch the adjustment button 13 to a deeper setting that is one or two levels deeper than the standard setting. Perform a second crimping on the same RJ45 head to allow the metal contacts to further pierce the insulation layer of the wire core, thereby improving contact. There is no need to cut off the RJ45 head and redo it.

[0078] When repairing crimped RJ45 connectors: For RJ45 connectors that have become loose after a period of use, select the deep crimp setting and put the RJ45 connector back into the crimping mold 31 for deep crimping repair to extend the service life of the RJ45 connector.

[0079] When switching gears: Repeat the above pressing, pushing, and releasing operation to switch to different gears to adapt to different specifications of RJ45 heads or different crimping requirements.

[0080] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A depth adjustment mechanism for network cable clamps, characterized in that, The device includes an eccentric adjustment component, a gear shifting component, a gear shifting positioning structure, and an elastic reset component (14). The eccentric adjustment component is rotatably mounted on the movable handle (2) of the network cable clamp. The eccentric adjustment component has an eccentric inner hole, which is hinged to the upper end of the push rod assembly (4) of the network cable clamp. When the eccentric adjustment component rotates, the position of the eccentric inner hole changes, thereby changing the initial position of the push rod assembly (4). The gear shifting component is movably mounted on the movable handle (2). The gear shifting component is connected to the eccentric adjustment component. Operating the gear shifting component can drive the eccentric adjustment component to rotate. The gear shifting positioning structure includes... The device includes multiple gear positioning parts and a mating part that cooperates with the gear operation component. The mating part can selectively cooperate with any one of the multiple gear positioning parts to lock the gear operation component in the corresponding gear position. The elastic reset member (14) is disposed between the gear operation component and the movable handle (2) and is used to apply an elastic force to the gear operation component to keep the mating part and the gear positioning part in cooperation. After the gear operation component is operated to overcome the elastic force of the elastic reset member (14) and the mating part is disengaged from the gear positioning part, moving the gear operation component can drive the eccentric adjustment member to rotate, thereby adjusting the crimping depth of the network cable clamp.

2. The depth adjustment mechanism of the network cable clamp according to claim 1, characterized in that, The eccentric adjustment component is an eccentric bushing (12), which is used to insert into the push hole (22) of the movable handle (2) and can rotate around the axis of the push hole (22); the outer circular surface of the eccentric bushing (12) is coaxially engaged with the push hole (22), and the eccentric bushing (12) is provided with an eccentric inner hole (121), the axis of the eccentric inner hole (121) is eccentrically set with the axis of the outer circular surface of the eccentric bushing (12).

3. The depth adjustment mechanism of the network cable clamp according to claim 1, characterized in that, The gear shifting component is connected to a transmission lever (17), which is connected to the eccentric adjustment component. When the gear shifting component moves, it drives the eccentric adjustment component to rotate through the transmission lever (17).

4. The depth adjustment mechanism of the network cable clamp according to claim 3, characterized in that, The outer circumferential surface of the eccentric adjustment component is provided with positioning external teeth (123), and the transmission lever (17) is provided with positioning internal teeth (171). The positioning internal teeth (171) mesh with the positioning external teeth (123), so that the transmission lever (17) and the eccentric adjustment component form a tooth meshing transmission connection.

5. The depth adjustment mechanism of the network cable clamp according to claim 3, characterized in that, The transmission lever (17) and the eccentric adjustment component are integrally formed.

6. The depth adjustment mechanism of the network cable clamp according to claim 1, characterized in that, The gear shifting component includes an adjustment button (13) and a positioning plate (11). The adjustment button (13) is exposed on the surface of the movable handle (2). The positioning plate (11) is fixedly connected to the adjustment button (13) and is used to extend into the movable handle (2). When the adjustment button (13) is pressed, the positioning plate (11) compresses the elastic reset member (14) and causes the mating part to disengage from the gear shifting positioning part.

7. The depth adjustment mechanism of the network cable clamp according to claim 1, characterized in that, The multiple gear positioning parts are multi-slot slots (21) arranged along an arc path, the center of the arc path coincides with the rotation center of the eccentric adjustment member; the mating parts are the two ends of the positioning plate (11) on the gear operation member, and the two ends of the positioning plate (11) can be respectively inserted into the multi-slot slots (21).

8. The depth adjustment mechanism of the network cable clamp according to claim 1, characterized in that, It also includes a fixing plate (16) for fixing relative to the movable handle (2), and an elastic reset member (14) is disposed between the gear shifting member and the fixing plate (16). One end of the elastic reset member (14) abuts against the gear shifting member and the other end abuts against the fixing plate (16).

9. A network cable crimping tool with adjustable crimping depth, characterized in that, The device includes a fixed component (3), a movable handle (2), a pressing tooth assembly (5), a push rod assembly (4), and a depth adjustment mechanism (1) as described in any one of claims 1 to 8; the movable handle (2) is hinged to the fixed component (3); the push rod assembly (4) is driven between the movable handle (2) and the pressing tooth assembly (5), and when the movable handle (2) rotates, it drives the pressing tooth assembly (5) to perform a pressing action through the push rod assembly (4); the depth adjustment mechanism (1) is disposed on the movable handle (2) and is used to adjust the pressing depth of the pressing tooth assembly (5).

10. The adjustable crimping depth network cable crimper according to claim 9, characterized in that, The push rod assembly (4) includes a primary linkage push rod (41) and a secondary linkage push rod (42). The upper end of the primary linkage push rod (41) is hinged to the eccentric inner hole (121) of the depth adjustment mechanism (1) through a first pivot (43). The lower end of the primary linkage push rod (41) is hinged to the upper end of the secondary linkage push rod (42) through a second pivot (44). The lower end of the secondary linkage push rod (42) is connected to the pressure tooth assembly (5).

11. The adjustable crimping depth network cable clamp according to claim 10, characterized in that, The secondary linkage push rod (42) is provided with a sliding groove (421), and the fixed component (3) is provided with a connecting rod sliding shaft (33). The connecting rod sliding shaft (33) is inserted into the sliding groove (421) to form a sliding fit. When the secondary linkage push rod (42) moves, it slides along the connecting rod sliding shaft (33).

12. The adjustable crimping depth network cable crimper according to claim 9, characterized in that, The fixing component (3) is provided with a crimping mold base (31), which is used to place the crystal head to be crimped; the plurality of positioning parts include at least a standard position corresponding to the standard crimping depth and at least one deeper position than the standard depth.

13. The adjustable crimping depth network cable crimper according to claim 9, characterized in that, The movable handle (2) is provided with a rotating hole (23), and the fixed component (3) is provided with a handle shaft (32). The rotating hole (23) is fitted onto the handle shaft (32) to form a hinge.

14. A method for adjusting the crimping depth of a network cable crimping tool, characterized in that, Using the network cable clamp as described in any one of claims 9 to 13, the method includes the following steps: S1, pressing the gear position operating member to overcome the elastic force of the elastic reset member, causing the mating part to disengage from the current gear position positioning part; S2, maintaining the pressing state, moving the gear position operating member along the adjustment direction, driving the eccentric adjustment member to rotate, changing the position of the eccentric inner hole of the eccentric adjustment member, thereby changing the initial position of the push rod assembly; S3, when the gear position operating member moves to the target gear position positioning part, releasing the gear position operating member, under the action of the elastic force of the elastic reset member, the mating part engages in the target gear position positioning part, completing the gear locking.

15. A method for repairing faulty RJ45 crimping, characterized in that, Using the network cable crimping tool as described in any one of claims 9 to 13, the method includes the following steps: T1, adjusting the gear operation to a deeper setting than the standard crimping depth; T2, placing the crimped but poorly contacted RJ45 connector into the crimping die; T3, gripping the movable handle to drive the push rod assembly and crimping tooth assembly to perform a secondary crimping of the RJ45 connector, so that the metal contacts of the RJ45 connector are further pressed into the network cable core, improving the contact.

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