Cable head quick connection terminal

Abstract

The invention provides a cable head rapid connection terminal, which is characterized in that a connection cavity is arranged in a shell, a connection hole for a to-be-connected cable to be inserted into the connection cavity is formed in the shell, two connection copper plates are arranged in the connection cavity in an up-down spaced manner, the connection copper plates are arranged in a sliding manner, and the connection copper plates can abut against to-be-communicated cable heads due to sliding; the first pressing mechanism is arranged in the connecting cavity, the first pressing mechanism is used for extruding the edges of the two connecting copper plates, and the second pressing mechanism is arranged in the connecting cavity. A guide structure is formed by the connecting cavity and the connecting hole of the shell, a cable to be connected can be directly inserted into the connecting hole and extends into the connecting cavity, the situation that a traditional terminal is accurately aligned with a bolt hole is not needed, a single person can complete the wire inserting action, and the two connecting copper plates arranged in a sliding mode can slide along with insertion of the cable to be matched and connected in an abutting mode. Conductive communication and clamping and fixing of the cable head are achieved, the cumbersome step of traditional bolt pre-alignment is omitted, and the cable connection efficiency is improved.

Description

Technical Field

[0001] This application belongs to the technical field of cable connection devices, and more specifically, relates to a quick-connect terminal for cable heads. Background Technology

[0002] Mobile generators are core equipment for emergency power supply, and the efficiency and reliability of cable connections directly determine the speed of power restoration response. Currently, copper-aluminum connectors or tin-plated copper terminals are commonly used for their cables due to their excellent conductivity and controllable cost. However, this type of terminal connection has significant drawbacks: the cables are heavy and require precise alignment, necessitating at least two people working together—one to hold the cable steady and align the connection hole, and the other to tighten the bolts with tools to achieve conductivity. This method requires a large workforce and is prone to delays during emergency power restoration; the bolt tightening process is cumbersome, with both connection and disassembly being time-consuming. Reliability is also a concern: insufficient torque can lead to poor contact, overheating, and burning; excessive torque can damage the threads or housing. In emergency scenarios, these problems can prolong power restoration time, causing economic losses or social impact.

[0003] In summary, existing connection methods suffer from high manpower requirements, low efficiency, and reliance on manual labor for reliability, failing to meet the need for rapid response. Developing efficient connection terminals has become an urgent problem to be solved. Summary of the Invention

[0004] The purpose of this application is to provide a quick-connect terminal for cable heads to improve cable connection efficiency.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: A quick-connect terminal for cable heads is provided, comprising a housing, two connecting copper plates, a first clamping mechanism, and a second clamping mechanism. The housing has a connecting cavity inside, and a connecting hole on the housing for inserting the cable to be connected into the connecting cavity. The two connecting copper plates are spaced apart vertically within the connecting cavity and are slidably arranged so that they can abut against the cable head to be connected, thereby connecting the two cables. The first clamping mechanism is located within the connecting cavity and is used to press the edges of the two connecting copper plates to clamp the cable head to be connected. The second clamping mechanism is located within the connecting cavity and is used to press the middle portion of the two connecting copper plates to further clamp the cable head to be connected.

[0006] In one possible implementation, the first clamping mechanism includes two first clamping components, which are respectively disposed on both sides of the connecting copper plate. Each first clamping component includes two clamping rods, which are arranged vertically at intervals within the connecting cavity and are slidably arranged. Each clamping rod corresponds one-to-one with a connecting copper plate and is located on the outer side of the corresponding connecting copper plate. The clamping rods can slide closer to each other to squeeze the connecting copper plates closer together and clamp the cable head.

[0007] In one possible implementation, the housing is provided with two first drive slots, each corresponding to a first clamping assembly. A gear assembly is rotatably disposed within the first drive slot, the gear assembly including a drive gear. Two rack assemblies are slidably disposed within the first drive slot, each rack assembly including a drive rack. Both drive racks mesh with the drive gears. Each rack assembly corresponds to a clamping rod, and the rack assembly is connected to the corresponding clamping rod.

[0008] In one possible implementation, the rack assembly includes a slotted hole, a drive rack, and a connecting rod, wherein the slotted hole is formed on the housing, and the long axis of the slotted hole is in the same direction as the sliding direction of the clamping rod; the drive rack is slidably disposed in the first drive groove; the connecting rod is inserted into the slotted hole, one end of the connecting rod is connected to the clamping rod, and the other end of the connecting rod is connected to the drive rack.

[0009] In one possible implementation, the width of the rack is greater than the width of the slot, and the rack covers the outside of the slot; one end of the slot is provided with a receiving groove, and both sides of the slot are provided with clearance grooves, the receiving groove and the clearance groove are connected, the width of the receiving groove is the same as the width of the clearance groove, and a sealing plate is provided on the connecting rod, the width of the sealing plate is the same as the width of the receiving groove. In the initial state, the connecting rod is located at one end of the slot, and the sealing plate is located in the receiving groove. The length of the sealing plate is greater than the length of the slot, and the sealing plate can extend into the clearance groove due to the sliding of the driving rack and block the slot at one end of the connecting rod.

[0010] In one possible implementation, the gear assembly includes a first drive hole, a drive shaft, a drive gear, and a drive handle, wherein the first drive hole is disposed on the housing; the drive shaft is rotatably disposed within the drive hole; the drive gear is fixed to the top end of the drive shaft and meshes with the corresponding drive rack; and the drive handle is disposed on the drive gear for holding and driving the drive gear to rotate.

[0011] In one possible implementation, a square hole is provided at the top of one of the drive holes, and a limiting block is provided between the drive shaft and the drive gear. When the limiting block is inserted into the limiting square hole, the drive shaft is fixed relative to the housing. A first limiting hole is provided at the bottom of the drive hole, the diameter of which is larger than that of the drive hole. A first limiting plate is rotatably disposed within the first limiting hole. A second limiting hole is provided between the first limiting hole and the square hole, the diameter of which is larger than that of the drive hole. A second limiting plate is provided at the bottom of the drive shaft, the diameter of which is larger than that of the drive hole. The second limiting plate is inserted into the second limiting hole. A plurality of safety springs are provided between the first limiting plate and the second limiting plate. When the safety springs are in their natural state, the second limiting plate abuts against the bottom of the second limiting hole. The depth of the second limiting hole is not less than the sum of the thickness of the second limiting plate and the depth of the square hole.

[0012] In one possible implementation, the second clamping mechanism includes a clamping hole, a screw assembly, a limiting groove, and two clamping cylinders. The clamping hole penetrates the housing vertically, and the connecting cavity communicates with the clamping hole. The screw assembly is rotatably disposed within the clamping hole. The limiting groove is formed on one side of the clamping hole and communicates with it. The two clamping cylinders are screwed onto the screw assembly. A limiting strip is provided on one side of each clamping cylinder, and the limiting strip is inserted into the limiting groove. The two clamping cylinders are respectively disposed on the upper and lower sides of the connecting cavity. The two clamping cylinders can move closer to each other to press against the connecting copper plate due to the rotation of the screw assembly, or move away from each other to release the pressure on the connecting copper plate.

[0013] In one possible implementation, the screw assembly includes an upper screw and a lower screw. The upper screw is slidably arranged along the axial direction of the clamping hole, has a mating hole at its bottom, and a handle extending out of the clamping hole at its top. The lower screw is fixedly arranged along the axial direction of the clamping hole, located below the upper screw, and has a mating block at its top. The upper screw can slide, allowing the mating block to be inserted into the mating hole. At this time, the lower screw rotates with the rotation of the upper screw. The clamping cylinder is screwed onto the lower screw, and two limiting plates are screwed onto the lower screw. The limiting plates correspond one-to-one with the clamping cylinders, and the limiting plates and clamping cylinders clamp the corresponding connecting copper plates.

[0014] In one possible implementation, a first reset ring and a second reset ring are sleeved on the outer side of the upper screw. The first reset ring is fixed to the upper screw, and the second reset ring is slidably arranged relative to the upper screw. A reset spring is provided between the first reset ring and the second reset ring. The clamping hole includes a first small-diameter section, a large-diameter section, and a second small-diameter section. The first small-diameter section is located at the top of the large-diameter section, and the second small-diameter section is located at the bottom of the large-diameter section. The large-diameter section passes through the connecting cavity. A clamping cylinder is inserted into the large-diameter section. The upper screw is inserted into the first small-diameter section, and the two ends of the lower screw are respectively located in the first small-diameter section and the second small-diameter section. The first small-diameter section passes through a mounting hole. The first reset ring and the second reset ring are located in the mounting hole. When the reset spring is in its natural state, the first reset ring abuts against the top of the mounting hole, and the second reset ring abuts against the bottom of the mounting hole. The second small-diameter section passes through a fixing hole. A fixing plate is provided on the lower screw, and the fixing plate is rotatably located in the fixing hole.

[0015] The advantages of the quick-connect cable head terminal provided in this application are as follows: Compared with the prior art, the connecting cavity and connecting hole of the housing in this application form a guiding structure, and the cable to be connected can be directly inserted into the connecting hole and extended into the connecting cavity. Unlike traditional terminals, there is no need to precisely align the bolt holes. A single person can complete the insertion action. The two slidingly arranged connecting copper plates can slide and fit together with the cable as it is inserted, realizing conductive connection and clamping and fixing of the cable head, eliminating the tedious steps of traditional bolt pre-alignment.

[0016] The first clamping mechanism squeezes the edge of the copper plate, and the second clamping mechanism squeezes the middle, forming full-area clamping. Edge clamping can fix the axial position of the cable head and prevent loosening during insertion and removal. Middle clamping can eliminate the gap between the copper plate and the cable head, ensuring full contact of the conductive contact surface, greatly reducing contact resistance and avoiding the risk of overheating and burning. Moreover, the dual clamping mechanism does not require bolt fastening and can achieve the connection and fixation of the cable head without additional tools, making it convenient and quick to use.

[0017] The sliding copper plate is compatible with cables of different diameters, and the synergistic effect of the dual clamping mechanism can quickly achieve stable clamping. Compared with traditional bolt tightening, which requires tightening each cable individually, it significantly shortens the connection time. During disassembly, the cable can be pulled out simply by releasing the dual clamping mechanism, further improving the response speed of emergency power supply. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the quick-connect cable head terminal provided in the embodiments of this application; Figure 2 This is a schematic diagram of the internal structure of the quick-connect terminal for cable heads provided in an embodiment of this application; Figure 3 This is a schematic diagram of the internal structure of the housing provided in an embodiment of this application; Figure 4 A cross-sectional view of the housing provided in an embodiment of this application; Figure 5 This is a schematic diagram of the rack assembly provided in an embodiment of this application; Figure 6 This is a schematic diagram of the clearance groove of the housing provided in an embodiment of this application; Figure 7 This is a schematic diagram of the gear assembly provided in an embodiment of this application; Figure 8 A schematic diagram of the second clamping mechanism provided in the embodiments of this application; Figure 9 This is a schematic diagram of the upper screw provided in an embodiment of this application.

[0020] The labels for the attached figures are as follows: 1. Housing; 2. Connecting copper plate; 3. First clamping mechanism; 4. Second clamping mechanism; 101. Connecting cavity; 102. Connecting hole; 103. First driving groove; 301. First clamping assembly; 302. Clamping rod; 303. Gear assembly; 304. Drive gear; 305. Rack assembly; 306. Drive rack; 307. Strip hole; 308. Connecting rod; 309. Receiving groove; 310. Clearance groove; 311. Sealing plate; 312. First drive hole; 313. Drive shaft; 314. Drive grip; 315. Square hole; 316. Limiting block; 317. First limiting hole; 318. Second limiting hole; 319. First limiting plate; 320. Second limiting plate; 321. Safety spring; 401. Clamping hole; 402. Screw assembly; 403. Limiting groove; 404. Clamping cylinder; 405. Limiting strip; 406. Upper screw; 407. Lower screw; 408. Mating hole; 409. Handle; 410. Mating block; 411. Limiting piece; 412. First reset ring; 413. Second reset ring; 414. Reset spring; 415. First small diameter section; 416. Large diameter section; 417. Second small diameter section; 418. Mounting hole; 420. Fixing hole; 421. Fixing plate. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0022] It should be further noted that the accompanying drawings and embodiments of this application mainly describe the concept of this application. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of this application, they can implement the above-mentioned specific forms and arrangements in a well-known manner.

[0023] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0024] The terms “length”, “width”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0026] The quick-connect terminal for cable heads provided in this application will now be described.

[0027] Please refer to the following: Figures 1 to 9The quick-connect terminal for cable heads includes a housing 1, two connecting copper plates 2, a first clamping mechanism 3, and a second clamping mechanism 4. The housing 1 has a connecting cavity 101 inside, and a connecting hole 102 on the housing 1 for inserting the cable to be connected into the connecting cavity 101. The two connecting copper plates 2 are spaced apart vertically within the connecting cavity 101 and are slidably arranged. The connecting copper plates 2 can slide and abut against the cable head to be connected, thus connecting the two cables. The first clamping mechanism 3 is located within the connecting cavity 101 and is used to press the edges of the two connecting copper plates 2 to clamp the cable head to be connected. The second clamping mechanism 4 is located within the connecting cavity 101 and is used to press the middle of the two connecting copper plates 2 to further clamp the cable head to be connected.

[0028] The beneficial effects of the quick-connect cable terminal provided in this embodiment are as follows: Compared with the prior art, the connecting cavity 101 and connecting hole 102 of the housing 1 in the quick-connect cable terminal provided in this embodiment form a guiding structure. The cable to be connected can be directly inserted into the connecting hole 102 and extended into the connecting cavity 101. There is no need to precisely align the bolt holes as with traditional terminals. A single person can complete the insertion action. The two slidingly arranged connecting copper plates 2 can slide and fit together with the cable as it is inserted, realizing conductive connection and clamping and fixing of the cable head, eliminating the tedious steps of traditional bolt pre-alignment.

[0029] The first clamping mechanism 3 squeezes the edge of the copper plate, and the second clamping mechanism 4 squeezes the middle, forming full-area clamping. Edge clamping can fix the axial position of the cable head and prevent loosening during insertion and removal. Middle clamping can eliminate the gap between the copper plate and the cable head, ensuring that the conductive contact surface is fully in contact, greatly reducing contact resistance, avoiding the risk of overheating and burning. Moreover, the dual clamping mechanism does not require bolt fastening and can achieve the connection and fixation of the cable head without additional tools, making it convenient and quick to use.

[0030] The sliding copper plate is compatible with cables of different diameters. The synergistic effect of the dual clamping mechanism can quickly achieve stable clamping. Compared with traditional bolt tightening, it significantly shortens the connection time. During disassembly, the cable can be pulled out simply by releasing the dual clamping mechanism, further improving the response speed of emergency power supply.

[0031] like Figure 2 and Figure 3 As shown, the first clamping mechanism 3 includes two first clamping components 301, which are respectively disposed on both sides of the connecting copper plate 2. Each first clamping component 301 includes two clamping rods 302, which are arranged vertically at intervals in the connecting cavity 101 and are slidably arranged. Each clamping rod 302 corresponds to a connecting copper plate 2 and is disposed on the outer side of the corresponding connecting copper plate 2. The clamping rods 302 can slide closer to each other to squeeze the connecting copper plates 2 closer to each other and clamp the cable head.

[0032] Traditional bolt tightening can easily cause the copper plate to tilt due to unilateral force application, resulting in poor contact at the cable head. In this solution, two first clamping components 301 are respectively located on both sides of the copper plate, forming a symmetrical force-bearing structure. The two clamping rods 302 of each component correspond one-to-one with the upper and lower copper plates. When sliding, they can move inward synchronously to ensure that the upper and lower copper plates always maintain a parallel state to press the cable head, avoiding local contact failure caused by copper plate tilting.

[0033] The dual-sided independent clamping components can adaptively adjust the clamping stroke according to the actual width of the cable head. For cables of different diameters, precise clamping can be achieved through the synchronous sliding of the clamping rods 302 on both sides, solving the problem that traditional connectors are difficult to adapt to multiple cable specifications. At the same time, the dual-rod compression design on the single copper plate can distribute pressure, avoid deformation and damage caused by local stress concentration on the copper plate, and extend the service life of the terminal.

[0034] When the clamping rod 302 presses down on the connecting copper plate 2, the connecting copper plate 2 will undergo slight deformation, making the contact position between the copper plate and the cable head U-shaped, increasing the contact area between the connecting copper plate 2 and the cable head.

[0035] In this embodiment, the housing 1 is provided with two first drive grooves 103, which correspond one-to-one with the first pressing components 301. A gear assembly 303 is rotatably provided in the first drive groove 103, and the gear assembly 303 includes a drive gear 304. Two rack assemblies 305 are slidably provided in the first drive groove 103, and the rack assembly 305 includes a drive rack 306. Both drive racks 306 mesh with the drive gear 304. The rack assembly 305 corresponds one-to-one with the pressing rod 302, and the rack assembly 305 is connected to the corresponding pressing rod 302.

[0036] The drive gear 304 meshes with two drive racks 306. Rotating the drive gear 304 will cause the two racks to slide in opposite directions, thereby driving the corresponding clamping rods 302 to move closer to the extruded copper plate in a synchronized manner. A single rotation operation can complete the coordinated clamping of the two rods on both sides, replacing the traditional action of tightening each bolt one by one, and greatly improving the docking efficiency.

[0037] The gear and rack drive has a fixed transmission ratio. The rotation angle of the drive gear 304 corresponds linearly to the sliding stroke of the rack. The clamping force of the clamping rod 302 can be precisely adjusted by controlling the rotation amplitude of the handle, avoiding the fluctuation of clamping force caused by the experience-based tightening of traditional bolts. Moreover, the self-locking property of the meshing drive can maintain the clamping state and prevent the clamping force from decreasing due to vibration during operation, making it suitable for the bumpy outdoor working environment of mobile generator vehicles.

[0038] The drive gear 304 and rack assembly 305 are located in the first drive groove 103 of the housing 1. The structure is compact and the operation is centralized. A single person can complete the clamping without carrying additional tools. It is especially suitable for outdoor scenarios without auxiliary tools for emergency power supply.

[0039] like Figure 5 As shown, the rack assembly 305 includes a strip-shaped hole 307, a drive rack 306, and a connecting rod 308. The strip-shaped hole 307 is formed on the housing 1, and the long axis of the strip-shaped hole 307 is in the same direction as the sliding direction of the clamping rod 302. The drive rack 306 is slidably disposed in the first drive groove 103. The connecting rod 308 is inserted into the strip-shaped hole 307. One end of the connecting rod 308 is connected to the clamping rod 302, and the other end of the connecting rod 308 is connected to the drive rack 306.

[0040] The long axis of the slot 307 is aligned with the sliding direction of the clamping rod 302. The connecting rod 308 is inserted into the slot 307 and connects the rack and the clamping rod 302 to form a rigid transmission guide structure. This structure can limit the movement trajectory of the rack and the clamping rod 302, prevent jamming caused by force deviation during gear and rack meshing, and ensure that the clamping rod 302 is always pressed along the normal direction of the copper plate, thus avoiding local clamping failure caused by transmission deviation.

[0041] The connecting rod 308 directly transmits the driving force of the rack to the clamping rod 302, reducing power loss. At the same time, this structure eliminates the need for additional fasteners, simplifying the assembly process and reducing terminal manufacturing costs.

[0042] Combination Figure 2 , Figure 5 and Figure 6 As shown, the width of the rack is greater than the width of the slot 307. The rack covers the outside of the slot 307. One end of the slot 307 is provided with a receiving groove 309. Both sides of the slot 307 are provided with clearance grooves 310. The receiving groove 309 and the clearance groove 310 are connected. The width of the receiving groove 309 is the same as the width of the clearance groove 310. The connecting rod 308 is provided with a sealing plate 311. The width of the sealing plate 311 is the same as the width of the receiving groove 309. In the initial state, the connecting rod 308 is located at one end of the slot 307, and the sealing plate 311 is located in the receiving groove 309. The length of the sealing plate 311 is greater than the length of the slot 307. The sealing plate 311 can extend into the clearance hole due to the sliding of the rack 306 and block the slot 307 at one end of the connecting rod 308.

[0043] Mobile generators are commonly used in scenarios such as power grid failures and outdoor power supply protection. They are susceptible to dust and rain, and the bolt gaps of traditional terminals can easily allow moisture to enter, causing short circuits. In this solution, the width of the rack is greater than that of the slot 307 and covers the outer side, forming the first sealing barrier to prevent large particles of impurities from entering. In the initial state, the sealing plate 311 is located in the receiving groove 309. After sliding, it extends into the clearance groove 310 and seals the slot 307. This seals the portion of the slot 307 that is opened due to the sliding of the driving rack 306, improving the insulation performance and service life of the terminals.

[0044] The sliding sealing action of the sealing plate 311 is synchronized with the action of the rack-driven clamping rod 302. Sealing is automatically completed during clamping, and the sealing is released when the rack returns to its original position during disassembly. No additional sealing operation steps are required, balancing sealing reliability and ease of operation. The length of the sealing plate 311 is greater than the length of the slot 307, ensuring no sealing gap throughout the sliding process, thus solving the problems of easy loss and cumbersome installation of traditional detachable seals.

[0045] Combination Figure 3 , Figure 4 and Figure 7 As shown, the gear assembly 303 includes a first drive hole 312, a drive shaft 313, a drive gear 304, and a drive handle 314. The first drive hole 312 is provided on the housing 1, the drive shaft 313 is rotatably disposed in the drive hole, the drive gear 304 is fixed to the top end of the drive shaft 313, the drive gear 304 meshes with the corresponding drive rack 306, and the drive handle 314 is provided on the drive gear 304 for holding and driving the drive gear 304 to rotate.

[0046] The drive grip 314 is integrated into the drive gear 304, allowing a single person to rotate the drive gear 304 by holding the grip, meeting the rapid operation requirements during emergency power restoration. The drive shaft 313 rotates within the first drive hole 312, ensuring high positioning accuracy and guaranteeing that the gear and rack are always meshed, avoiding misalignment and jamming as seen in traditional tool operation. The ergonomic design of the drive grip 314 adapts to the hand's force application posture, reducing fatigue during prolonged operation and improving efficiency when continuously connecting multiple terminals.

[0047] In this embodiment, a square hole 315 is provided at the top of one of the driving holes. A limiting block 316 is provided between the driving shaft 313 and the driving gear 304. When the limiting block 316 is inserted into the limiting square hole 315, the driving shaft 313 is fixed relative to the housing 1. A first limiting hole 317 is provided at the bottom of the driving hole. The diameter of the first limiting hole 317 is larger than that of the driving hole. A first limiting plate 319 is rotatably disposed in the first limiting hole 317. A second limiting hole 318 is provided between the first limiting hole 317 and the square hole 315. The second limiting hole 318... The diameter of the drive shaft 313 is larger than that of the drive hole. The bottom of the drive shaft 313 is provided with a second limiting plate 320. The diameter of the second limiting plate 320 is larger than that of the drive hole. The second limiting plate 320 is inserted into the second limiting hole 318. A plurality of safety springs 321 are provided between the first limiting plate 319 and the second limiting plate 320. When the safety springs 321 are in the natural state, the second limiting plate 320 abuts against the bottom of the second limiting hole 318. The depth of the second limiting hole 318 is not less than the sum of the thickness of the second limiting plate 320 and the depth of the square hole 315.

[0048] In its natural state, the safety spring 321 has the second limiting plate 320 abutting the bottom of the hole, the limiting block 316 inserted into the square hole 315, and the drive shaft 313 fixed relative to the housing 1, thereby automatically locking the gear position and preventing accidental rotation of the gear from causing the clamping force to decrease, ensuring that the cable connection remains stable in a bumpy environment.

[0049] When adjusting the clamping force, pull the drive shaft 313 outward, and the limit block 316 will disengage from the square hole 315, allowing the drive shaft 313 to rotate. After release, the spring returns to its original position, pulling the limit block 316 back to achieve relocking, avoiding the risk of loosening caused by accidental rotation of traditional bolts. The first and second limit plates 320 respectively restrict the up and down axial movement of the drive shaft 313, ensuring stable gear and rack meshing clearance and preventing transmission failure. The depth design of the second limit hole 318 ensures that the limit block 316 can completely disengage from the square hole 315 without any unlocking jamming issues.

[0050] like Figure 4 , Figure 8 and Figure 9As shown, the second clamping mechanism 4 includes a clamping hole 401, a screw assembly 402, a limiting groove 403, and two clamping cylinders 404. The clamping hole 401 penetrates the housing 1 vertically and is connected to the connecting cavity 101. The screw assembly 402 is rotatably disposed in the clamping hole 401. The limiting groove 403 is opened on one side of the clamping hole 401 and is connected to the clamping hole 401. The two clamping cylinders 404 are screwed onto the screw assembly 402. A limiting strip 405 is provided on one side of the clamping cylinder 404 and is inserted into the limiting groove 403. The two clamping cylinders 404 are disposed on the upper and lower sides of the connecting cavity 101. The two clamping cylinders 404 can move closer to each other to press the connecting copper plate 2 due to the rotation of the screw assembly 402, or move away from each other to release the pressure on the connecting copper plate 2.

[0051] The screw assembly 402 rotates, causing the two clamping cylinders 404 to move closer together along the axial direction. The limiting strip 405 and the limiting groove 403 cooperate to prevent the clamping cylinders 404 from rotating, ensuring that the clamping cylinders 404 only squeeze the middle of the copper plate in the vertical direction, forming a "full-area clamping" with the edge of the first mechanism. This increases the contact area between the cable head and the copper plate, further reduces the contact resistance, and completely avoids the problem of local heat generation.

[0052] The continuous screw drive enables stepless adjustment of the clamping force. For different cable heads, the clamping force can be precisely controlled by rotating the screw, avoiding damage to excessively hard cable heads and poor contact with excessively soft cable heads. The two clamping cylinders 404 move synchronously in opposite directions to ensure balanced force on the upper and lower copper plates, preventing permanent deformation of the copper plates due to unilateral force.

[0053] Specifically, the screw assembly 402 includes an upper screw 406 and a lower screw 407. The upper screw 406 is slidably arranged along the axial direction of the clamping hole 401, and has a mating hole 408 at its bottom and a handle 409 extending out of the clamping hole 401 at its top. The lower screw 407 is fixedly arranged along the axial direction of the clamping hole 401 and is located below the upper screw 406. The top is provided with a mating block 410. The upper screw 406 can slide, so that the mating block 410 can be inserted into the mating hole 408. At this time, the lower screw 407 rotates with the rotation of the upper screw 406. The clamping cylinder 404 is screwed onto the lower screw 407. Two limiting plates 411 are screwed onto the lower screw 407. The limiting plates 411 correspond one-to-one with the clamping cylinder 404. The limiting plates 411 and the clamping cylinder 404 clamp the corresponding connecting copper plate 2.

[0054] Traditional bolt tightening requires simultaneous wire insertion and alignment, which is cumbersome. In this solution, when the upper screw 406 is not sliding, the mating block 410 separates from the mating hole 408, the lower screw 407 is stationary, and the clamping cylinder 404 is in a relaxed state, allowing easy insertion of the cable head. After insertion, sliding the upper screw 406 allows the mating block 410 to insert into the mating hole 408. Rotating the upper screw 406 drives the lower screw 407 to rotate, achieving clamping. This step-by-step operation avoids interference between wire insertion and clamping, and can be completed quickly by a single person. The limiting plate 411 on the lower screw 407 cooperates with the clamping cylinder 404 to form a clamping and fixing connection of the copper plate 2. Compared to the compression of a single clamping cylinder 404, this prevents the copper plate from shifting during vibration. Simultaneously, when the second clamping mechanism 4 is unlocked, the connecting copper plate 2 slides with the clamping cylinder 404 for easy reuse.

[0055] Finally, a first reset ring 412 and a second reset ring 413 are sleeved on the outer side of the upper screw 406. The first reset ring 412 is fixed on the upper screw 406, and the second reset ring 413 is slidably arranged relative to the upper screw 406. A reset spring 414 is provided between the first reset ring 412 and the second reset ring 413. The clamping hole 401 includes a first small diameter section 415, a large diameter section 416, and a second small diameter section 417. The first small diameter section 415 is located at the top of the large diameter section 416, and the second small diameter section 417 is located at the bottom of the large diameter section 416. The large diameter section 416 is arranged through the connecting cavity 101, and the clamping cylinder 404 is inserted into the large diameter section 416. Inside, the upper screw 406 is inserted into the first small diameter section 415, and the two ends of the lower screw 407 are respectively located in the first small diameter section 415 and the second small diameter section 417. The first small diameter section 415 passes through the mounting hole 418. The first reset ring 412 and the second reset ring 413 are located in the mounting hole 418. When the reset spring 414 is in its natural state, the first reset ring 412 abuts against the top of the mounting hole 418, and the second reset ring 413 abuts against the bottom of the mounting hole 418. The second small diameter section 417 passes through the fixing hole 420. The lower screw 407 is provided with a fixing plate 421, which is rotatably located in the fixing hole 420.

[0056] In its natural state, the return spring 414 causes the first return ring 412 to abut against the top of the mounting hole 418, the upper screw 406 resets and drives the mating block 410 to disengage from the mating hole 408, and the clamping cylinder 404 automatically loosens. At this time, the upper screw 406 separates from the lower screw 407 to prevent accidental contact that could cause the connecting copper plate 2 to loosen the pressure on the cable head.

[0057] The segmented design of the clamping hole 401 positions the upper screw 406, clamping cylinder 404, and lower screw 407 separately, preventing axial displacement of the components. The fixing plate 421 fixes the lower screw 407 and allows rotation, ensuring that the screw assembly 402 only rotates without axial movement, thus improving the meshing accuracy between the lower screw 407 and the clamping cylinder 404. The integrated design of the reset ring and spring in the mounting hole 418 avoids the problem of easy detachment of traditional reset structures, adapting to the frequent operation requirements of mobile generator vehicles.

[0058] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A quick-connect terminal for cable heads, characterized in that, include: A housing (1) with an internal connecting cavity (101) is provided. The housing (1) has a connecting hole (102) for inserting the cable to be connected into the connecting cavity (101). Two connecting copper plates (2) are arranged vertically and vertically in the connecting cavity (101). The connecting copper plates (2) are slidably arranged and can abut against the cable head to be connected due to sliding, so as to connect the two cables to be connected. A first pressing mechanism (3) is provided in the connecting cavity (101). The first pressing mechanism (3) is used to press the edges of the two connecting copper plates (2) so that the two connecting copper plates (2) clamp the cable head to be connected. A second pressing mechanism (4) is provided in the connecting cavity (101). The second pressing mechanism (4) is used to press the middle part of the two connecting copper plates (2) so that the two connecting copper plates (2) further clamp the cable head to be connected.

2. The quick-connect terminal for cable heads as described in claim 1, characterized in that: The first clamping mechanism (3) includes two first clamping components (301), which are respectively disposed on both sides of the connecting copper plate (2). Each first clamping component (301) includes two clamping rods (302). The clamping rods (302) are arranged vertically at intervals in the connecting cavity (101) and are slidably arranged. The clamping rods (302) correspond one-to-one with the connecting copper plate (2). The clamping rods (302) are disposed on the outer side of the connecting copper plate (2) on the corresponding side. The clamping rods (302) can slide closer to each other to squeeze the connecting copper plate (2) closer to each other and clamp the cable head.

3. The quick-connect terminal for cable heads as described in claim 2, characterized in that: The housing (1) is provided with two first drive slots (103), each of which corresponds to one of the first pressing components (301). A gear assembly (303) is rotatably provided in the first drive slot (103), the gear assembly (303) including a drive gear (304). Two rack assemblies (305) are slidably provided in the first drive slot (103), each rack assembly (305) including a drive rack (306). Both drive racks (306) mesh with the drive gear (304). The rack assembly (305) corresponds to one of the pressing rods (302), and the rack assembly (305) is connected to the corresponding pressing rod (302).

4. The quick-connect terminal for cable heads as described in claim 3, characterized in that: The rack assembly (305) includes: a strip hole (307), a drive rack (306), and a connecting rod (308). The strip hole (307) is formed on the housing (1), and the long axis of the strip hole (307) is in the same direction as the sliding direction of the clamping rod (302). The drive rack (306) is slidably disposed in the first drive groove (103). The connecting rod (308) is inserted into the strip hole (307), one end of the connecting rod (308) is connected to the clamping rod (302), and the other end of the connecting rod (308) is connected to the drive rack (306).

5. The quick-connect terminal for cable heads as described in claim 4, characterized in that: The width of the rack is greater than the width of the slot (307), and the rack covers the outside of the slot (307); one end of the slot (307) is provided with a receiving groove (309), and both sides of the slot (307) are provided with clearance grooves (310). The receiving groove (309) communicates with the clearance groove (310), and the width of the receiving groove (309) is the same as the width of the clearance groove (310). The connecting rod (308) is provided with a sealing plate (311). 1) The width is the same as the width of the receiving groove (309). In the initial state, the connecting rod (308) is located at one end of the strip hole (307), and the sealing plate (311) is located in the receiving groove (309). The length of the sealing plate (311) is greater than the length of the strip hole (307). The sealing plate (311) can extend into the clearance groove (310) due to the sliding of the driving rack (306) and block the strip hole (307) at one end of the connecting rod (308).

6. The quick-connect terminal for cable heads as described in claim 5, characterized in that: The gear assembly (303) includes a first drive hole (312), a drive shaft (313), a drive gear (304), and a drive handle (314). The first drive hole (312) is located on the housing (1). The drive shaft (313) is rotatably located in the drive hole. The drive gear (304) is fixed to the top of the drive shaft (313) and meshes with the corresponding drive rack (306). The drive handle (314) is located on the drive gear (304) and is used for holding the gear to drive the drive gear (304) to rotate.

7. The quick-connect terminal for cable heads as described in claim 6, characterized in that: The first driving hole (312) has a square hole (315) at its top. A limiting block (316) is provided between the driving shaft (313) and the driving gear (304). When the limiting block (316) is inserted into the square hole (315), the driving shaft (313) is fixed relative to the housing (1). The bottom of the driving hole has a first limiting hole (317). The diameter of the first limiting hole (317) is larger than that of the driving hole. A first limiting plate (319) is rotatably disposed in the first limiting hole (317). A second limiting hole (318) is provided between the first limiting hole (317) and the square hole (315). The diameter of the drive shaft (313) is larger than that of the drive hole. The bottom of the drive shaft (313) is provided with a second limiting plate (320). The diameter of the second limiting plate (320) is larger than that of the drive hole. The second limiting plate (320) is inserted into the second limiting hole (318). A plurality of safety springs (321) are provided between the first limiting plate (319) and the second limiting plate (320). When the safety springs (321) are in their natural state, the second limiting plate (320) abuts against the bottom of the second limiting hole (318). The depth of the second limiting hole (318) is not less than the sum of the thickness of the second limiting plate (320) and the depth of the square hole (315).

8. The quick-connect terminal for cable heads as described in claim 1, characterized in that: The second clamping mechanism (4) includes a clamping hole (401), a screw assembly (402), a limiting groove (403), and two clamping cylinders (404). The clamping hole (401) penetrates the housing (1) vertically, and the connecting cavity (101) communicates with the clamping hole (401). The screw assembly (402) is rotatably disposed within the clamping hole (401). The limiting groove (403) is located on one side of the clamping hole (401) and communicates with it. The two clamping cylinders (404)... The clamping cylinder (404) is screwed onto the screw assembly (402). A limiting strip (405) is provided on one side of the clamping cylinder (404). The limiting strip (405) is inserted into the limiting groove (403). The two clamping cylinders (404) are respectively located on the upper and lower sides of the connecting cavity (101). The two clamping cylinders (404) can move closer to each other and squeeze the connecting copper plate (2) due to the rotation of the screw assembly (402), or move away from each other to release the squeezing of the connecting copper plate (2).

9. The quick-connect terminal for cable heads as described in claim 8, characterized in that: The screw assembly (402) includes an upper screw (406) and a lower screw (407). The upper screw (406) is slidably arranged along the axial direction of the clamping hole (401). The bottom of the upper screw (406) is provided with a mating hole (408), and the top of the upper screw (406) is provided with a handle (409) extending out of the clamping hole (401). The lower screw (407) is fixedly arranged along the axial direction of the clamping hole (401). The lower screw (407) is located below the upper screw (406), and the top of the lower screw (407) is provided with a mating hole (408). The upper screw (406) can slide, allowing the mating block (410) to be inserted into the mating hole (408). At this time, the lower screw (407) rotates with the rotation of the upper screw (406). The clamping cylinder (404) is screwed onto the lower screw (407). Two limiting pieces (411) are screwed onto the lower screw (407). The limiting pieces (411) correspond one-to-one with the clamping cylinder (404). The limiting pieces (411) and the clamping cylinder (404) clamp the corresponding connecting copper plate (2).

10. The quick-connect terminal for cable heads as described in claim 9, characterized in that: A first reset ring (412) and a second reset ring (413) are sleeved on the outer side of the upper screw (406). The first reset ring (412) is fixed on the upper screw (406), and the second reset ring (413) is slidably arranged relative to the upper screw (406). A reset spring (414) is provided between the first reset ring (412) and the second reset ring (413). The clamping hole (401) includes a first small diameter section (415), a large diameter section (416), and a second small diameter section (417). The first small diameter section (415) is located at the top of the large diameter section (416), and the second small diameter section (417) is located at the bottom of the large diameter section (416). The large diameter section (416) passes through the connecting cavity (101). The clamping cylinder (404) is inserted into the large diameter section (416), the upper screw (406) is inserted into the first small diameter section (415), and the two ends of the lower screw (407) are respectively located in the first small diameter section (415) and the second small diameter section (417); the first small diameter section (415) passes through the mounting hole (418), the first reset ring (412) and the second reset ring (413) are located in the mounting hole (418), and when the reset spring (414) is in its natural state, the first reset ring (412) abuts against the top of the mounting hole (418), the second reset ring (413) abuts against the bottom of the mounting hole (418), and the mating block (410) is located outside the mating hole (408); The second small diameter section (417) is arranged through the fixing hole (420), and the lower screw (407) is provided with a fixing plate (421), which is rotatably disposed in the fixing hole (420).

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