Quick access cable connecting device for generator car

Abstract

The utility model discloses a device for quickly connecting an access cable of a generator car, which belongs to the technical field of power equipment, aims to solve the problems of dangerous operation, long consumed time and insufficient reliability when the existing generator car accesses an aerial cable, and comprises a left clamping ring, a right clamping ring and a contact ring which are linked through a gear rack mechanism, the clamping device is used for achieving quick opening and closing clamping of a cable. A wire fixing seat and a connecting screw rod are arranged for connecting a generator car wire; a clamping ring fastening screw rod and a clamping ring pressing plate are arranged, and a clamping ring fixing clamp with a wedge block can be selectively arranged to achieve firm locking; the core lies in that an operator can safely and remotely complete the whole process of hanging, clamping, locking and dismounting of an aerial cable on the ground by using a matched telescopic insulating operating rod assembly, and the device is ingenious in structure, realizes safe operation on the ground, quick and efficient in connection and reliable in locking, can adapt to different wire diameters by replacing a contact ring, and is convenient to use. And the safety and efficiency of temporary power supply access are obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically a device for quickly connecting a generator vehicle to a cable. Background Technology

[0002] Currently, mobile generators are often used as temporary power sources to provide power to important users or specific areas during power grid maintenance, fault repair, or emergency response. However, safely, quickly, and reliably connecting the generator's output cable to existing overhead power lines is a critical step. Traditional methods often require workers to climb poles or use insulated bucket trucks, which are complex, time-consuming, and pose safety risks such as working at heights and near electrical lines. Especially in severe weather or emergencies, both operational efficiency and safety are greatly limited. Therefore, developing a device that can quickly, safely, and conveniently connect generators to overhead lines is of significant practical importance.

[0003] Chinese invention patent application CN109066469A discloses a rapid access device for generator trucks used in distribution network overhead lines. It includes a connecting device connected to the distribution network overhead line, a disconnector connected to the connecting device, and two connecting rings connected to the disconnector. One connecting ring is connected to a grounding wire, and the other connecting ring is connected to the generator truck's cable. The generator truck cable is connected to the distribution network overhead line through the rapid access device of this invention, which is fast, efficient, and low-cost.

[0004] The above design aims to simplify the final connection steps between the generator car cable and the grounding wire and improve the access efficiency by setting a connection device with a knife switch and a preset connecting ring. However, it still has certain limitations, such as slow installation and disassembly speed. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and propose a quick connection cable device for a generator vehicle to solve the above-mentioned problems.

[0006] The purpose of this utility model is achieved through the following technical solution: a generator car quick connection cable device, comprising a left retaining ring and a right retaining ring symmetrically arranged on the left and right sides. A left gear is rotatably connected to the bottom end of the left retaining ring, and a right gear is fixedly connected to the bottom end of the right retaining ring. The left and right gears mesh with each other. A rack is meshed with the end of the left gear away from the right gear. A left contact ring and a right contact ring are respectively arranged at the ends of the left and right retaining rings that are close to each other. The left and right contact rings are electrically connected through a split connection. A wire fixing seat is fixedly connected to the end of the right retaining ring away from the left retaining ring. A wire connecting screw is internally threaded into the wire fixing seat. The top and bottom ends of the wire connecting screw both penetrate the wire fixing seat, and wire fastening bolts are threadedly connected to the penetrating parts. The wire fastening bolts are respectively abutted against the top and bottom of the wire fixing seat. The left retaining ring has connecting plates fixedly connected to the corresponding positions of the left gear at both ends. The end of the connecting plate away from the left retaining ring is rotatably connected to the right gear. The end of the left retaining ring away from the right retaining ring is fixedly connected to the mounting bracket. The mounting bracket is internally threaded with a retaining ring fastening screw. The retaining ring fastening screw passes through the mounting bracket and extends to the upper side of the mounting bracket. The extended part is fixedly connected to a retaining ring pressure plate. The bottom end of the retaining ring fastening screw is engaged with a fastening screw adjusting rod. The bottom end of the wire fixing seat is engaged with a support tube. The bottom end of the rack is engaged with a retaining ring adjusting tube. The right contact ring and the wire fixing seat are electrically connected through a main connection. The left contact ring, right contact ring, sub-connecting band, wire fixing seat, wire connecting screw and main connecting band are all made of copper.

[0007] The left and right contact rings are positioned so that their ends are close to each other and make contact with the cable. The left retaining ring, right retaining ring, left contact ring, and right contact ring are all arc-shaped structures that mate with the outer end of the cable.

[0008] Both the left and right contact rings have screws fixedly connected to their opposite ends. The screws on the left and right contact rings pass through the left and right retaining rings respectively and extend to the outside of the left and right retaining rings. The extended parts are threaded with nuts, which abut against the corresponding left and right retaining rings respectively.

[0009] Both the sub-connecting belt and the main connecting belt are made of copper braided tape. A retaining clip is fixedly connected to the top of the right retaining clip. The end of the retaining clip away from the right retaining clip extends horizontally to the upper side of the left retaining clip. A clearance groove is opened at the corresponding position of the retaining clip and the retaining clip fastening screw.

[0010] The top of the retaining ring is equipped with a wedge, and the tip of the wedge is positioned close to the right retaining ring. The bottom of the retaining ring pressure plate is provided with an angle, and the angle is matched with the top of the wedge.

[0011] The outer wall of the fastening screw adjusting rod is slidably connected to the inner wall of the support tube, and the outer wall of the support tube is slidably connected to the inner wall of the retaining ring adjusting tube. The axial length of the fastening screw adjusting rod, the support tube, and the retaining ring adjusting tube gradually increases.

[0012] Multiple scale lines are provided at the corresponding positions of the outer end of the support tube and the bottom end of the retaining ring adjustment tube, and the end of the rack away from the left gear is slidably connected to the mounting bracket.

[0013] Both the left and right gears pass through the connecting plate and are rotatably connected to the connecting plate. The bottom end of the wire connecting screw is electrically connected to the generator car through a wire. The fastening screw adjusting rod, support tube, and retaining ring adjusting tube are all made of insulating material.

[0014] When the retaining ring pressure plate moves to the upper limit position, the distance from the right gear axis to the end of the retaining ring fixing card away from the right retaining ring is less than the distance from the right gear axis to the bottom end of the retaining ring pressure plate, which makes it convenient for the retaining ring fixing card to rotate to the bottom end of the retaining ring pressure plate.

[0015] The beneficial effects of this utility model are:

[0016] 1. This device is equipped with a retractable insulated operating rod assembly, which allows the entire installation and dismantling process to be completed on the ground. Operators no longer need to perform dangerous pole climbing operations or rely on large auxiliary equipment such as insulated bucket trucks, avoiding the risk of falling from heights and the risk of electric shock from close contact with high-voltage lines. The safety guarantee is particularly prominent, especially in emergency repairs or in severe weather conditions. The insulated operating rod itself also provides a reliable electrical insulation barrier.

[0017] 2. The gear and rack linkage mechanism is used to drive the opening and closing of the retaining ring. Combined with the pushing and pulling action of the insulating operating rod, the device can quickly clamp and release the cable. Compared with the traditional cumbersome and time-consuming access method that requires climbing, using multiple tools, and manually tightening bolts, it shortens the time required for the generator truck to connect to the cable, thereby enabling faster restoration of temporary power supply and reducing the impact of power outages.

[0018] 3. The mechanical locking structure utilizes the precise fit between the retaining ring, wedge, retaining ring pressure plate, and retaining ring fastening screw to form an extremely strong self-locking effect after final tightening. This design can effectively resist loosening caused by external factors such as line vibration, wind sway, or electrodynamic forces generated by high current, ensuring a long-lasting and stable mechanical clamping force and electrical contact, and guaranteeing the reliability of the connection during temporary power supply.

[0019] 4. Key conductive components of the device, such as left and right contact rings, branch connecting strips, main connecting strips, wire fixing seats, and wire connecting screws, are all made of copper with excellent conductivity to ensure low resistance and high efficiency of the current transmission path. The arc structure design of the contact ring is designed to form a good fit with the cable and increase the effective contact area. At the same time, the use of flexible copper braided tape as the connecting strip ensures the reliability of conductivity and can adapt to the relative movement during the opening and closing of the retaining ring.

[0020] 5. The left and right contact rings are designed with a detachable installation method, allowing users to easily replace contact rings of different specifications according to the wire diameter or type of the overhead cable encountered on site. This makes the same device suitable for various cable conditions, improving the versatility and utilization of the equipment and reducing the need to equip it with special clamps of various sizes.

[0021] 6. As a key component that directly contacts the cable and carries current, the contact ring is relatively easy to wear out. The detachable design allows users to easily replace it after it wears or is damaged, without having to replace the entire expensive device, thus extending the overall service life of the equipment and reducing long-term operation and maintenance costs.

[0022] 7. The scale lines on the telescopic operating tube provide ground operators with a visual reference for the opening and closing of the retaining ring, which helps to achieve more precise and standardized operation. The sliding guide design between the rack and the mounting bracket ensures the smooth and stable operation of the transmission mechanism and improves the operating experience. Attached Figure Description

[0023] Figure 1 This is an overall structural diagram of the present invention;

[0024] Figure 2 This is an exploded view of the entire utility model;

[0025] Figure 3 For the localized explosion of this utility model Figure 1 ;

[0026] Figure 4 For the localized explosion of this utility model Figure 2 ;

[0027] Figure 5 For the localized explosion of this utility model Figure 3 ;

[0028] Figure 6 For the localized explosion of this utility model Figure 4 ;

[0029] Figure 7 This is a front view of the present invention;

[0030] Figure 8 For the present utility model Figure 7 Sectional view of AA;

[0031] Figure 9 This is a side view of the present invention;

[0032] Figure 10 This is a structural diagram of the present utility model.

[0033] Explanation of the labels in the diagram

[0034] 1. Left retaining ring; 2. Right retaining ring; 3. Left gear; 4. Right gear; 5. Rack; 6. Left contact ring; 7. Right contact ring; 8. Connecting belt; 9. Wire fixing seat; 10. Wire connecting screw; 11. Wire fastening bolt; 12. Connecting plate; 13. Mounting bracket; 14. Retaining ring fastening screw; 15. Retaining ring pressure plate; 16. Fastening screw adjusting rod; 17. Support tube; 18. Retaining ring adjusting tube; 19. Main connecting belt; 20. Retaining ring fixing clip. Detailed Implementation

[0035] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0036] It should be noted that the directional concepts of "left", "right", "up", "down", "front", "back", "inner", and "outer" in the following scheme are all relative directions, and will not be listed one by one here.

[0037] Example 1

[0038] like Figures 1 to 10 As shown, this embodiment provides a generator vehicle quick connection cable access device, the structure of which includes a left retaining ring 1 and a right retaining ring 2 symmetrically arranged on the left and right. Both the left retaining ring 1 and the right retaining ring 2 are arc structures that cooperate with the outer surface of the cable to be accessed. The bottom end of the left retaining ring 1 is rotatably connected to a left gear 3, while the bottom end of the right retaining ring 2 is fixedly connected to a right gear 4. The left gear 3 and the right gear 4 mesh with each other, and the left gear 3 meshes with a rack 5 on the side away from the right gear 4.

[0039] At the ends of the left retaining ring 1 and the right retaining ring 2 that are close to each other, a left contact ring 6 and a right contact ring 7 are respectively provided. The left contact ring 6 and the right contact ring 7 are also arc structures that match the outer end of the cable and are used to make direct electrical contact with the cable. The left contact ring 6 and the right contact ring 7 are electrically connected by a connecting strip 8. In order to ensure good conductivity, the left contact ring 6, the right contact ring 7 and the connecting strip 8 are all made of copper.

[0040] The right retaining ring 2 is fixedly connected to a wire fixing seat 9 at the end away from the left retaining ring 1. The wire fixing seat 9 has internal threads for threaded connection with the wire connecting screw 10. The top and bottom ends of the wire connecting screw 10 pass through the wire fixing seat 9, and wire fastening bolts 11 are threadedly connected to the passing parts. By tightening these two wire fastening bolts 11, the output wire of the generator car (not shown) can be firmly pressed and fixed to the wire connecting screw 10. One of the wire fastening bolts 11 abuts against the top end of the wire fixing seat 9, and the other abuts against the bottom end of the wire fixing seat 9. The generator car wire is specifically connected to the bottom end of the wire connecting screw 10. The wire fixing seat 9 and the wire connecting screw 10 are also made of copper.

[0041] In order to transmit current, a main connecting band 19 is provided between the right contact ring 7 and the wire fixing seat 9 for electrical connection. The main connecting band 19 is also made of copper.

[0042] For support and linkage, connecting plates 12 are fixedly connected to both ends of the left retaining ring 1 near the left gear 3. The connecting plate 12 is rotatably connected to the right gear 4 at the end away from the left retaining ring 1. Both the left gear 3 and the right gear 4 pass through the connecting plate 12 and can rotate relative to the connecting plate 12.

[0043] The left retaining ring 1 is fixedly connected to a mounting bracket 13 at the end away from the right retaining ring 2. The mounting bracket 13 has internal threads for threaded connection with the retaining ring fastening screw 14. The retaining ring fastening screw 14 passes through the mounting bracket 13 and extends upward. Its extended part is fixedly connected to a retaining ring pressure plate 15. This structure is used for subsequent fastening operations.

[0044] To enable remote operation, a three-section telescopic operating rod assembly is provided. The bottom end of the retaining ring fastening screw 14 can be engaged with the fastening screw adjusting rod 16, the bottom end of the wire fixing seat 9 can be engaged with the support tube 17, and the bottom end of the rack 5 can be engaged with the retaining ring adjusting tube 18. The outer wall of the fastening screw adjusting rod 16 is slidably connected to the inner wall of the support tube 17, and the outer wall of the support tube 17 is slidably connected to the inner wall of the retaining ring adjusting tube 18, forming a telescopic sleeve structure. Furthermore, the axial length of these three components is designed to gradually increase, with the fastening screw adjusting rod 16 being the shortest, the support tube 17 being the next longest, and the retaining ring adjusting tube 18 being the longest, facilitating operation and storage. For operational safety, the fastening screw adjusting rod 16, the support tube 17, and the retaining ring adjusting tube 18 are all made of insulating material.

[0045] Working principle

[0046] First, connect and secure the output wire of the generator car to the bottom end of the wire connecting screw 10, and fix it with the wire fastening bolt 11. Then, connect the insulated operating rod assembly to the main body of the device: the fastening screw adjusting rod 16 is snapped into the bottom end of the retaining ring fastening screw 14, the support tube 17 is snapped into the bottom end of the wire fixing seat 9, and the retaining ring adjusting tube 18 is snapped into the bottom end of the rack 5.

[0047] Open the retaining ring: Operate the retaining ring adjusting tube 18 and pull down the rack 5. The rack 5 drives the left gear 3 to rotate through meshing. The left gear 3 drives the right gear 4 to rotate through meshing. Since the right gear 4 is fixed on the right retaining ring 2, the right retaining ring 2 rotates accordingly, moving it away from the left retaining ring 1. This increases the opening between the left contact ring 6 and the right contact ring 7, making it easier to install the cable.

[0048] Cable connection: Using the assembled insulated operating rod (fastening screw adjusting rod 16, support tube 17, retaining ring adjusting tube 18), lift the entire device to the target overhead cable, so that the open left contact ring 6 and right contact ring 7 cross the cable.

[0049] Initial clamping: Push the retaining ring adjusting tube 18 upward to move the rack 5 upward. The rack 5 drives the left gear 3 to rotate, which in turn drives the right gear 4 to rotate. The right retaining ring 2 rotates accordingly and moves closer to the left retaining ring 1, so that the left contact ring 6 and the right contact ring 7 begin to clamp the cable. Continue pushing until initial clamping is achieved.

[0050] Final tightening: Operate the adjusting rod 16 of the tightening screw, rotate the retaining ring tightening screw 14, the retaining ring tightening screw 14 rotates and descends within the mounting bracket 13, driving the retaining ring pressure plate 15 to move downward. The downward movement of the retaining ring pressure plate 15 will generate a locking force or further clamping force on the device (this embodiment does not limit the specific locking structure, but this operation is used for final fixation).

[0051] Conducting current: After clamping and fixing, the current of the generator car flows through the output wire to the wire connecting screw 10, passes through the wire fixing seat 9 and the main connecting band 19 to the right contact ring 7, and then passes through the branch connecting band 8 to the left contact ring 6. The two contact rings simultaneously make contact with the cable and conduct, providing temporary power to the line.

[0052] Disassembly: After the operation is completed, first disconnect the power supply of the generator car, and then operate in reverse: use the fastening screw adjusting rod 16 to rotate the retaining ring fastening screw 14 in the opposite direction, so that the retaining ring pressure plate 15 rises and releases the final fastening force. Then pull down the retaining ring adjusting tube 18 to move the rack 5 down, drive the gear to rotate in the opposite direction, so that the right retaining ring 2 opens and releases the clamp on the cable. Finally, use the insulated operating rod to remove the device from the cable and disassemble the operating rod assembly.

[0053] By using a telescopic operating rod consisting of a fastening screw adjusting rod 16, a support tube 17, and a retaining ring adjusting tube 18 made of insulating material, operators can install and remove the device on the overhead cable from the ground without having to climb the pole or use an insulated bucket truck, which greatly improves the safety of operation and avoids the risks of working at height.

[0054] By utilizing the linkage mechanism of rack 5, left gear 3 and right gear 4, the left retaining ring 1 and right retaining ring 2 (mainly the right retaining ring 2 relative to the left retaining ring 1) can be quickly driven to open and close at a large angle through the push-pull retaining ring adjustment tube 18, which facilitates the quick hanging of the device on the cable or removal from the cable, thus improving work efficiency.

[0055] The left retaining ring 1, right retaining ring 2, left contact ring 6, and right contact ring 7 are all designed as arc structures that fit with the outer surface of the cable. This helps the device to be stably positioned on the cable and ensures that the left contact ring 6 and right contact ring 7 have a large contact area with the cable, which is beneficial for conductivity.

[0056] The main conductive components of the device, including the left contact ring 6, the right contact ring 7, the sub-connecting band 8, the wire fixing seat 9, the wire connecting screw 10, and the main connecting band 19, are all made of copper with excellent conductivity, ensuring the reliability of current transmission. At the same time, the wire connecting screw 10 and the wire fastening bolt 11 provide a secure connection point for the generator car wires.

[0057] The structure described in this embodiment includes core components that realize basic functions. The gear and rack transmission is stable and reliable, and the telescopic insulating rod structure is practical. Overall, it constitutes a basic device with clear functions and relatively convenient operation.

[0058] Example 2

[0059] like Figures 1 to 10 As shown, this embodiment further optimizes and limits the technical solution described in Embodiment 1. In addition to including all the components and their connection relationships described in Embodiment 1, this embodiment also has the following structural features:

[0060] First, regarding the installation method of the contact rings, both the left contact ring 6 and the right contact ring 7 have screws fixedly connected to their ends away from the cable (i.e., the outer side away from the clamping surface). These screws pass through the pre-set holes on the main body of the left retaining ring 1 and the right retaining ring 2, and extend to the outer side of the retaining rings. Nuts are threadedly connected to the extended parts of the screws. These nuts are finally tightened and abut against the outer surface of the corresponding left retaining ring 1 and right retaining ring 2, thereby detachably fixing the left contact ring 6 and the right contact ring 7 to the corresponding retaining rings.

[0061] Secondly, the material of the connecting strip and the newly added locking structure, the sub-connecting strip 8 used to connect the left contact ring 6 and the right contact ring 7, and the main connecting strip 19 used to connect the right contact ring 7 and the wire fixing seat 9, are specifically made of copper braided strip with good flexibility and excellent conductivity. More importantly, in this embodiment, a key locking component - the retaining ring fixing clip 20 - is fixedly connected to the top of the right retaining ring 2. The retaining ring fixing clip 20 extends horizontally from the top of the right retaining ring 2 away from the right retaining ring 2, and its free end is located in the upper area of ​​the left retaining ring 1. In order to avoid interference, the retaining ring fixing clip 20 has a clearance groove at the position corresponding to the axis of the retaining ring fastening screw 14.

[0062] Furthermore, the interface of the locking structure has been specifically designed. The top surface of the retaining ring 20 is provided with a wedge, the tip of which faces towards the right retaining ring 2. In conjunction with this, the bottom surface of the retaining ring pressure plate 15 is provided with an angle. The angle and position of this angle are designed to precisely match the wedge at the top of the retaining ring 20. When the retaining ring pressure plate 15 is pressed down, the angle will act on the wedge, generating an effective locking force.

[0063] In addition, an operation aid and guide structure has been added. On the outer wall of the support tube 17, near the bottom end where it is sleeved with the retaining ring adjustment tube 18, multiple scale lines are provided to indicate the extension of the retaining ring adjustment tube 18 relative to the support tube 17, that is, to indicate the movement of the rack 5 or the opening and closing degree of the retaining ring. At the same time, it is clarified that the other end of the rack 5 away from the meshing end of the left gear 3 is slidably connected to the mounting bracket 13 to ensure the stability and guidance of the rack 5 during the up and down movement.

[0064] Finally, the unlocking conditions of the locking structure were geometrically limited. To ensure smooth unlocking, the device was designed such that when the retaining ring fastening screw 14 is rotated in the opposite direction to move the retaining ring pressure plate 15 to its upper limit of travel, the distance from the axis of the right gear 4 to the free end of the retaining ring fixing clip 20 (i.e., the end away from the right retaining ring 2) is less than the distance from the axis of the right gear 4 to the bottom surface of the retaining ring pressure plate 15 at this time. This design ensures that after the retaining ring pressure plate 15 is lifted, the retaining ring fixing clip 20 has enough space to swing freely out from under the retaining ring pressure plate 15 with the rotation of the right retaining ring 2 without interference.

[0065] The remaining parts not detailed are the same as in Example 1.

[0066] Working principle

[0067] The working principle of this embodiment is based on that of Embodiment 1, with a focus on the action of the locking mechanism and the application of auxiliary functions:

[0068] Preparation and opening: Same as in Example 1, connect the wires, assemble the insulating operating rod (fastening screw adjusting rod 16, support tube 17, retaining ring adjusting tube 18), ensure that the retaining ring pressure plate 15 has been raised to the upper limit by rotating the retaining ring fastening screw 14 (operated by using the fastening screw adjusting rod 16), pull down the retaining ring adjusting tube 18 to make the rack 5 go down, drive the gear to rotate, the right retaining ring 2 rotates and opens, and at the same time the retaining ring fixing clip 20 fixed on it also rotates and swings away from the area above the left retaining ring 1.

[0069] Cable connection: Same as in Example 1, use an insulated operating rod to connect the device to the cable.

[0070] Initial clamping and locking: Push the retaining ring adjusting tube 18 upward, the rack 5 moves upward, and the drive gear rotates, causing the right retaining ring 2 to rotate and close. During this process, the retaining ring fixing clip 20 also rotates, passing over the top of the left retaining ring 1, and finally stops in the area below the retaining ring pressure plate 15. The operator can refer to the scale line on the support tube 17 to judge the degree of closure of the retaining ring.

[0071] Final locking: Operate the adjusting rod 16 of the fastening screw and rotate the retaining ring fastening screw 14 to move the retaining ring pressure plate 15 downward. The beveled bottom of the retaining ring pressure plate 15 contacts and presses against the wedge at the top of the retaining ring fixing clip 20. As the retaining ring pressure plate 15 presses down, the action of the beveled surface and the wedge generates a strong downward pressure and lateral force, which firmly locks the retaining ring fixing clip 20 in the current position, thereby preventing the right retaining ring 2 from accidentally rotating and opening. This achieves reliable locking of the cable clamping state and may further increase the clamping force by utilizing the leverage effect.

[0072] Conducting current: The current path is the same as in Example 1. The use of copper braided sub-connecting strips 8 and main connecting strips 19 ensures the flexibility and reliability of the electrical connection during the opening and closing of the retaining ring.

[0073] Replacement of contact rings (if necessary): If replacement is required due to different cable sizes or wear of the contact rings, they can be removed and replaced by unscrewing the nuts that secure the left contact ring 6 and the right contact ring 7 when the device is not installed.

[0074] Disassembly: First, disconnect the power. Then, operate the adjusting rod 16 to rotate the retaining ring fastening screw 14 in the opposite direction, causing the retaining ring pressure plate 15 to rise to the upper limit position. This releases the clamping force on the retaining ring fixing clip 20, allowing the retaining ring fixing clip 20 to rotate freely below the retaining ring pressure plate 15. Next, pull down the retaining ring adjusting tube 18, causing the rack 5 to descend and drive the right retaining ring 2 to rotate and open. The retaining ring fixing clip 20 then moves away from the area above the left retaining ring 1. The left contact ring 6 and the right contact ring 7 disconnect the cables. Finally, remove the device.

[0075] When in use, rotate the retaining ring fastening screw 14 to move the retaining ring pressure plate 15 to the upper limit position. Then, connect the support tube 17 to the bottom end of the mounting bracket 13, connect the fastening screw adjusting rod 16 to the bottom end of the retaining ring fastening screw 14, connect the connecting strip 8 to the bottom end of the rack 5, connect the wire to the wire connecting screw 10, manually rotate the right retaining ring 2 to move the retaining ring fixing clip 20 away from the top of the left retaining ring 1, and move the left contact ring 6 and the right contact ring 7 away from each other.

[0076] The user then manually moves the mounting bracket 13 upwards via the fastening screw adjusting rod 16, support tube 17, and retaining ring adjusting tube 18 until the bottom ends of the left contact ring 6 and right contact ring 7 contact the cable. After that, the user continues to push the retaining ring adjusting tube 18 upwards. The retaining ring adjusting tube 18 drives the rack 5 to move upwards. The rack 5 then drives the left gear 3 and right gear 4 to rotate. The right gear 4 then drives the right retaining ring 2 and retaining ring fixing clip 20 to rotate, so that the retaining ring fixing clip 20 rotates around the axis of the right gear 4 until the retaining ring fixing clip 20 rotates to the underside of the retaining ring pressure plate 15. During this process, the right retaining ring 2 rotates towards the left retaining ring 1.

[0077] Then, by adjusting the fastening screw rod 16, the retaining ring fastening screw 14 is rotated, causing the retaining ring pressure plate 15 to move downward until the bottom end of the retaining ring pressure plate 15 abuts against the top end of the retaining ring fixing clip 20. Then, torque is applied to the retaining ring fastening screw 14, causing the left retaining ring 1 and the right retaining ring 2 to drive the left contact ring 6 and the right contact ring 7 to squeeze the outer end of the cable, making firm contact with the cable and facilitating conductivity. The current is conducted through the wire connecting screw 10 to the wire fixing seat 9, then through the main connecting band 19 to the right contact ring 7, and then through the branch connecting band 8 to the left contact ring 6.

[0078] Then pull down the adjusting rod 16 of the fastening screw, the support tube 17 and the adjusting tube 18 of the retaining ring to disengage the adjusting rod 16 of the fastening screw, the support tube 17 and the adjusting tube 18 of the retaining ring fastening screw 14, the mounting bracket 13 and the rack 5; during use, the operator can judge the opening and closing distance of the retaining ring fixing clip 20 and the right retaining ring 2 by the scale through the outer end of the support tube 17;

[0079] After use, fasten the screw adjusting rod 16, support tube 17 and retainer adjusting tube 18 with retainer fastening screw 14, mounting bracket 13 and rack 5. Rotate retainer fastening screw 14 in the opposite direction to move retainer pressure plate 15 up until it reaches the upper limit. Then pull rack 5 down. Rack 5 drives left gear 3 and right gear 4 to rotate. Right gear 4 then drives right retainer 2 and retainer fixing clip 20 to move away from left retainer 1. Right retainer 2 drives right contact ring 7 to rotate until left contact ring 6 and right contact ring 7 release the clamp on the cable.

[0080] During use, the connecting strip 8 deforms when the left contact ring 6 and the right contact ring 7 are loosened or clamped to keep the left contact ring 6 and the right contact ring 7 electrically connected. The left contact ring 6 and the right contact ring 7 increase the conductive area through full contact with the cable, allowing the device to carry a larger current.

[0081] During use, the interlocking of the left gear 3, right gear 4, and rack 5 allows the right retaining ring 2 and right contact ring 7 to open to a large angle, facilitating the mounting or removal of the device onto the cable. Furthermore, during the upward movement of the device, when the left contact ring 6 and the connecting strip 8 come into contact with the cable, they abut against the cable. Subsequently, the rack 5, left gear 3, and right gear 4 drive the right retaining ring 2 to rotate, causing the left contact ring 6 and right contact ring 7 to clamp the cable, allowing the device to be quickly fixed onto the cable.

[0082] The left contact ring 6 and the right contact ring 7 are detachable and can be replaced according to different cable diameters. The cooperation between the bottom end of the retaining ring pressure plate 15 and the top end of the retaining ring fixing card 20 allows the retaining ring pressure plate 15 to better fix the retaining ring fixing card 20. The retaining ring fixing card 20 and the right retaining ring 2 form a lever structure, which allows the left contact ring 6 and the right contact ring 7 to clamp the cable more firmly.

[0083] The newly added locking mechanism, consisting of the retaining ring 20, the retaining ring pressure plate 15, and the wedge and bevel engagement between them, provides a very robust and reliable mechanical lock. Once tightened by the retaining ring fastening screw 14, it effectively prevents the retaining ring from accidentally loosening due to vibration, external force, or electrodynamic force generated by current, ensuring the stability and safety of long-term connection.

[0084] The left contact ring 6 and the right contact ring 7 are designed to be detachable and fixed with screws and nuts, which allows for easy replacement of contact rings of the appropriate size according to different diameter cables. This enhances the adaptability of the device to different cable specifications. At the same time, the contact rings are easy to replace when they wear out, reducing maintenance costs and difficulty.

[0085] The connecting strip 8 and the main connecting strip 19 are made of copper braided tape. Compared with rigid connections or other types of soft connections, braided tape has better flexibility and bending resistance, and can better adapt to the deformation during the opening and closing of the retaining ring, ensuring a durable and reliable electrical connection.

[0086] The scale lines on the support tube 17 provide operators with an intuitive reference for the degree of opening and closing of the retaining ring, which helps to achieve more precise or consistent operation. The sliding connection between the rack 5 and the mounting bracket 13 ensures the stability of the rack operation, which helps to improve the operating feel and the smoothness of the mechanism operation.

[0087] The above description is only a preferred embodiment of the present utility model. It should be understood that the present utility model is not limited to the form disclosed herein and should not be regarded as an exclusion of other embodiments. It can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present utility model should be protected within the scope of the appended claims.

Claims

1. A power generation vehicle quick connect access cable device, characterized by, The utility model relates to a cable fixing device, including left snap ring (1) and right snap ring (2) of bilateral symmetry arrangement, left gear (3) is rotatively connected with left snap ring (1) bottom end, right gear (4) is fixedly connected with right snap ring (2) bottom end, left gear (3) and right gear (4) are mutually engaged and are connected, the one end of left gear (3) away from right gear (4) is engaged and is connected with rack (5), left snap ring (1) and right snap ring (2) are contacted with left contact ring (6) and right contact ring (7) respectively in the one end of mutual approach, left contact ring (6) and right contact ring (7) are connected through the division connecting band (8) between the electricity, right snap ring (2) is fixedly connected with wire fixed seat (9) in the one end away from left snap ring (1), wire connecting screw rod (10) is screwed in wire fixed seat (9) inside, wire connecting screw rod (10) top and bottom are all through wire fixed seat (9), and the threaded connection of the through portion is all wire fastening bolt (11), two wire fastening bolt (11) are respectively arranged with wire fixed seat (9) top and bottom, the both ends of left snap ring (1) and left gear (3) corresponding position are all fixedly connected with connecting plate (12), the one end of connecting plate (12) away from left snap ring (1) is rotatively connected with right gear (4), left snap ring (1) is fixedly connected with mounting bracket (13) in the one end away from right snap ring (2), mounting bracket (13) is screwed in snap ring fastening screw rod (14) inside, snap ring fastening screw rod (14) is through mounting bracket (13), and extends to mounting bracket (13) upper side, and the fixed connection of the extending part is connected with the snap ring pressure plate (15), the bottom of snap ring fastening screw rod (14) is connected with fastening screw rod adjusting rod (16), wire fixed seat (9) bottom is connected with support pipe (17), the bottom of rack (5) is connected with the snap ring adjusting pipe (18), right contact ring (7) and wire fixed seat (9) are connected through the total connecting band (19) between the electricity, left contact ring (6), right contact ring (7), division connecting band (8), wire fixed seat (9), wire connecting screw rod (10) and total connecting band (19) are all made of copper.

2. A fast connection access cable device for a power generation vehicle according to claim 1, characterized in that: The one end of left contact ring (6) and right contact ring (7) is contacted with the cable, and the left snap ring (1), the right snap ring (2), the left contact ring (6), the right contact ring (7) are all the circular arc structures matched with the outer end of the cable.

3. A fast connection access cable device for a power generation vehicle according to claim 1, characterized in that: The one end of left contact ring (6) and right contact ring (7) is contacted with the cable, and the left snap ring (1), the right snap ring (2), the left contact ring (6), the right contact ring (7) are all the circular arc structures matched with the outer end of the cable.

4. A fast connection access cable device for a power generation vehicle according to claim 1, characterized in that: The sub-connection band (8) and the total connection band (19) are copper braids, the right clasp ring (2) is fixedly connected with a clasp ring fixed clasp (20) at the top end, the clasp ring fixed clasp (20) extends horizontally to the upper side of the left clasp ring (1) away from the right clasp ring (2), and the clasp ring fixed clasp (20) is provided with a gap slot at a position corresponding to the clasp ring fastening screw (14).

5. A fast connection access cable device for a generating vehicle as claimed in claim 4, wherein: The clasp ring fixed clasp (20) is provided with a wedge block at the top end, and the wedge block is arranged in the direction close to the right clasp ring (2), and the clasp ring pressing plate (15) is provided with an inclined angle at the bottom end, and the inclined angle is arranged in cooperation with the top end of the wedge block.

6. A fast connection access cable device for a power generation vehicle according to claim 1, characterized in that: The fastening screw adjusting rod (16) is slidably connected with the inner wall of the support pipe (17), the support pipe (17) is slidably connected with the inner wall of the clasp ring adjusting pipe (18), and the fastening screw adjusting rod (16), the support pipe (17) and the clasp ring adjusting pipe (18) gradually increase in axial length.

7. A fast connection access cable device for a power generation vehicle according to claim 1, characterized in that: A plurality of scale lines are formed on the outer end of the support pipe (17) and the bottom end of the clasp ring adjusting pipe (18) in a corresponding position, and the rack (5) is slidably connected with the mounting bracket (13) away from the left gear (3).

8. A fast connection access cable device for a power generation vehicle according to claim 1, characterized in that: The left gear (3) and the right gear (4) penetrate the connecting plate (12), and the left gear (3) and the right gear (4) are rotatably connected with the connecting plate (12), the wire connecting screw (10) is electrically connected with the power generation car through a wire at the bottom end, and the fastening screw adjusting rod (16), the support pipe (17) and the clasp ring adjusting pipe (18) are made of insulating materials.

9. A fast connection access cable device for a power generation vehicle according to claim 4, characterized in that: When the clasp ring pressing plate (15) moves to the upper limit position, the distance from the axis of the right gear (4) to the end of the clasp ring fixed clasp (20) away from the right clasp ring (2) is less than the distance between the axis of the right gear (4) and the bottom end of the clasp ring pressing plate (15), so that the clasp ring fixed clasp (20) can be rotated to the bottom end of the clasp ring pressing plate (15).

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