Flange type cable connector and use method thereof

Abstract

The invention discloses a flange type cable connector and a using method thereof. The flange type cable connector comprises a flange base, an arc-shaped pressing ring, a fastening bolt and an eccentric cam. A center hole is formed in the middle of the flange base, a slot communicated with the center hole is formed in the side face, a plurality of fixing holes are formed in the periphery of the center hole, and at least one fixing hole is located on one side of the slot. The arc-shaped pressing ring is arranged in the open groove and can slide in the radial direction. The fastening bolt is arranged in the fixing hole in a penetrating manner; the eccentric cam is rotatably connected to the fastening bolt on the outer side of the open groove, the outer contour surface of the eccentric cam abuts against the outer wall of the arc-shaped pressing ring, and the arc-shaped pressing ring is pushed to contract towards the center hole during rotation so as to press the cable. According to the connector, the eccentric cam drives the single set of arc-shaped pressing rings, a traditional symmetrical bolt clamping mode is replaced, the number of accessories is reduced, the cost is reduced, cable fixing and releasing can be completed only by rotating the eccentric cam, the operation convenience in a narrow space is greatly improved, the clamping stability is guaranteed, and the connector is suitable for cables of various diameters and high in universality.

Description

Technical Field

[0001] The present invention relates to the technical field of cable fixing for electrical equipment, and in particular to a flange-type cable connector and a method of using the same, which is particularly suitable for mechanical anchoring joints of cables that need to be frequently disassembled and assembled. Background Art

[0002] In the field of industrial cable connection, flange-type cable connectors, as key components for securing and sealing cables, are widely used in machinery manufacturing, automation equipment, communications engineering, and other applications. Their core function is to securely clamp cables through their structural design. The mounting holes in the flange base provide a rigid connection to equipment or pipelines, ensuring a stable connection under conditions such as vibration and tension.

[0003] At present, the common flange-type cable connectors on the market generally adopt a structure in which symmetrically arranged arc-shaped pressure rings are fastened with bolts when fixing cables. Specifically, two arc-shaped pressure rings are provided on both sides of the surface of the flange base, and the two arc-shaped pressure rings are respectively and regularly arranged on both sides of the center hole. When it is necessary to fix the cable, it is necessary to tighten the bolts on both sides at the same time, and push the arc-shaped pressure rings toward the inside of the center hole through the axial feed of the bolts until the two pressure rings clamp the cable together; when disassembling, it is necessary to symmetrically loosen the two bolts to reset the pressure rings to release the cable. The current common structure can refer to a flange-type cable connector disclosed in application number CN202220485786.0.

[0004] However, this traditional structure has obvious defects in actual application: first, there are many accessories, and arc-shaped pressure rings and bolts need to be equipped in pairs, which not only increases the production cost, but also increases the difficulty of the assembly process. The cables need to be disassembled and assembled with the help of tools (such as screwdrivers and wrenches); second, the operation is not convenient, especially when working in a small space. Since two symmetrical bolts need to be tightened or loosened at the same time, the tool's range of motion is limited, and operational interference is very likely to occur, resulting in low disassembly and assembly efficiency or even inability to disassemble and assemble.

[0005] Therefore, in view of the shortcomings of existing flange-type cable connectors in terms of structural simplification, operational convenience and cost control, it is urgent to develop a new cable connector structure with fewer accessories, easier assembly and disassembly, and adaptable to operations in narrow spaces. Summary of the Invention

[0006] In view of the deficiencies in the background technology, the present invention provides a flange type cable connector and a method of using the same.

[0007] The technical solution adopted by the present invention is: a flange type cable connector, comprising: A flange base, wherein the flange base has a through center hole in the middle, a slot connected to the center hole is provided on the side thereof, and a plurality of fixing holes are provided on the periphery of the center hole, at least one of the plurality of fixing holes is located on one side of the slot; An arc-shaped pressure ring, which is arranged in the slot and can slide radially along the slot; a fastening bolt, the fastening bolt being passed through the fixing hole; The eccentric cam is rotatably connected to the fastening bolt on the outside of the slot, and the outer contour surface of the eccentric cam abuts against the outer wall of the arc pressure ring. By rotating the eccentric cam, the outer contour surface of the eccentric cam pushes the arc pressure ring to radially contract toward the center hole to compress the cable.

[0008] Furthermore, there are two fixing holes located on one side of the slot, which are symmetrically distributed on both sides of the arc-shaped pressure ring.

[0009] Furthermore, the outer wall of the arc-shaped pressure ring is provided with a concave surface matching the eccentric cam, and a plurality of first convex steps are arranged at intervals on the concave surface. The outer contour surface of the eccentric cam is provided with second convex steps matching the first convex steps at intervals, and the first convex steps and the second convex steps are interlocked with each other to achieve a stable connection.

[0010] Furthermore, the middle part of the fastening bolt located on one side of the slot is a polished rod section, and limiting steps are provided at both ends of the polished rod section. A sleeve is provided at the center of the eccentric cam, and the sleeve can be rotatably mounted on the polished rod section between the two limiting steps.

[0011] Furthermore, an operating handle is integrally provided on the eccentric cam, and the operating handle partially extends out of the slot.

[0012] Furthermore, it also includes a coil spring sleeve and a rubber sleeve, one end of the coil spring sleeve is provided with a welding sleeve, the welding sleeve is fixedly connected to the inner wall of the outlet end of the center hole, the rubber sleeve is connected to the other end of the coil spring sleeve, and the end of the rubber sleeve away from the coil spring sleeve is provided with a chamfered corner.

[0013] Furthermore, it also includes a rubber pad and a waterproof sealing sleeve, the waterproof sealing sleeve is sleeved on the wire inlet end of the center hole, and its opening has an elastic sealing lip that contracts radially inward, the rubber pad is padded on the flange base, and the rubber pad is provided with a matching hole corresponding to the fixing hole.

[0014] Furthermore, a guide groove is provided on the bottom surface of the slot, and a guide boss matching the guide groove is provided on the bottom surface of the arc-shaped pressure ring. The width of the guide groove is 0.5-1.5 mm greater than the width of the guide boss.

[0015] The present application also provides a method for using a flange-type cable connector, comprising the following steps: Step 1) Pass the cable through the waterproof sealing sleeve and the center hole of the flange base in sequence, ensuring that the cable fits tightly against the elastic sealing lip. Step 2) Tighten the fastening bolts to secure the device; Step 3) Rotate the eccentric cam so that its outer contour pushes the arc-shaped pressing ring to contract radially until the cable is compressed and fixed.

[0016] The beneficial effects of the present invention are: 1. Simple structure and low cost: This application adopts a design of a single set of arc pressure rings with an eccentric cam, eliminating the other set of arc pressure rings and corresponding bolts symmetrically arranged in the traditional structure, simplifying the structure, reducing accessories, and reducing production costs.

[0017] 2. Easy operation, suitable for working in confined spaces: Abandoning the tightening / loosening operations of symmetrical bolts in traditional structures, the arc-shaped pressure ring can be radially contracted and reset simply by rotating the eccentric cam, completing the rapid fixation and release of the cable. When disassembling, only the eccentric cam needs to be rotated, and no other disassembly tools are required. This effectively reduces the operating space required, significantly shortens the disassembly and assembly time in confined environments, and improves work efficiency.

[0018] 3. Wider scope of application and strong compatibility: By adjusting the rotation angle of the eccentric cam, the arc-shaped pressure ring can be radially contracted to different degrees, which can adapt to cables of various diameters. There is no need to design connectors separately for different cables, which enhances the versatility and market adaptability of the product.

[0019] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0020] The present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is an explosion diagram of the present invention.

[0023] Figure 3 It is a structural diagram of the flange base.

[0024] Figure 4 Schematic diagram of the second structure of the arc pressure ring.

[0025] Figure 5 It is a structural diagram of the fastening bolt and the eccentric cam.

[0026] Figure 6 for Figure 4 Enlarged diagram of point A in the middle Figure 1-6Middle: 1. Flange base; 2. Center hole; 3. Slot; 4. Fixing hole; 5. Arc pressure ring; 6. Fastening bolt; 7. Eccentric cam; 8. Outer contour surface; 9. Concave surface; 10. First convex step; 11. Second convex step; 12. Polished rod section; 13. Limit step; 14. Sleeve; 15. Operating handle; 16. Coil spring sleeve; 17. Rubber sleeve; 18. Welding sleeve; 19. Chamfered corner; 20. Rubber pad; 21. Waterproof sealing sleeve; 22. Elastic sealing lip; 23. Matching hole; 24. Guide groove; 25. Guide boss. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative positional relationship and movement status of the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] The invention provides a flange type cable connector and a use method thereof.

[0030] In this embodiment, referring to Figure 1-6 The flange type cable connector includes: A flange base 1, wherein the flange base 1 has a through center hole 2 in the middle thereof, a slot 3 connected to the center hole 2 is provided on the side thereof, and a plurality of fixing holes 4 are provided on the periphery of the center hole 2, at least one of the plurality of fixing holes being located on one side of the slot; An arc-shaped pressure ring 5 is disposed in the slot and can slide radially along the slot; A fastening bolt 6, wherein the fastening bolt 6 is passed through the fixing hole; The eccentric cam 7 is rotatably connected to the fastening bolt on the outside of the slot, and the outer contour surface 8 of the eccentric cam 7 abuts against the outer wall of the arc pressure ring. By rotating the eccentric cam 7, the outer contour surface of the eccentric cam 7 pushes the arc pressure ring to radially contract toward the center hole to compress the cable.

[0031] In this technical solution, the central hole of the flange base allows the cable to pass through, the side slots provide radial sliding space for the curved pressure ring, and the peripheral fixing holes are used to install fastening bolts to achieve overall fixation. The curved pressure ring can move radially within the slot. The eccentric cam is rotatably connected via fastening bolts, and its outer contour abuts the outer wall of the curved pressure ring. Utilizing the eccentric structure's characteristics, the outer contour pushes the curved pressure ring toward the central hole during rotation, thereby clamping the cable.

[0032] The eccentric cam drives a single set of arc-shaped pressure rings, eliminating the need to disassemble or assemble bolts for cable fixation. This simplifies the structure, reduces the number of accessories, and streamlines the operating process. Cable fixation and release can be completed simply by rotating the eccentric cam, improving the convenience of working in confined spaces, reducing costs, and ensuring cable clamping stability.

[0033] Specifically, there are two fixing holes located on one side of the slot, which are symmetrically distributed on both sides of the arc-shaped pressure ring.

[0034] In this embodiment, two fixing holes are symmetrically located on either side of the slot, one on either side of the curved pressure ring. This allows the curved pressure ring to be held in place by the fastening bolts on both sides, securing the curved pressure ring within the slot. Furthermore, the symmetrical design of the two fixing holes, coupled with eccentric cams attached to the fastening bolts located in the slotted fixing holes, ensures uniform clamping force, preventing skew in the pressure ring caused by unilateral force. This ensures more uniform cable clamping and enhances connection stability and reliability.

[0035] Specifically, the outer wall of the arc-shaped pressure ring is provided with a concave surface 9 that matches the eccentric cam, and a plurality of first convex steps 10 are arranged at intervals on the surface of the concave surface 9. The outer contour surface of the eccentric cam is provided with second convex steps 11 that match the first convex steps 10 at intervals, and the first convex steps and the second convex steps are interlocked with each other to achieve a stable connection.

[0036] In this embodiment, the concave surface of the arc-shaped pressure ring's outer wall mates with the outer contour of the eccentric cam, increasing the contact area. A first raised step on the concave surface and a second raised step on the eccentric cam form a mechanical stop, preventing relative sliding between the two. The combined concave and convex surfaces enhance contact stability, while the interlocking structure of the raised steps increases friction, preventing the eccentric cam from rotating under conditions such as vibration. This ensures the arc-shaped pressure ring maintains a stable clamping force on the cable, reducing the risk of the cable loosening.

[0037] Wherein, the cross sections of the first convex step and the second convex step are arc-shaped structures.

[0038] Specifically, the middle part of the fastening bolt located on one side of the slot is a polished rod section 12, and limiting steps 13 are set at both ends of the polished rod section 12. A sleeve 14 is set at the center of the eccentric cam, and the sleeve 14 can be rotatably sleeved on the polished rod section between the two limiting steps.

[0039] In this embodiment, the polished rod section in the middle of the fastening bolt provides rotational support for the eccentric cam's sleeve. Limiting steps at both ends restrict axial movement of the sleeve, allowing the eccentric cam to rotate only around the polished rod section and preventing axial movement along the bolt. The limiting steps and the polished rod section work together to position the eccentric cam, preventing axial displacement during operation or use. This ensures that the eccentric cam and the arc-shaped pressure ring maintain effective contact at all times, ensuring stable driving performance while simplifying the assembly process.

[0040] Specifically, an operating handle 15 is integrally provided on the eccentric cam, and a portion of the operating handle 15 extends out of the slot.

[0041] In this embodiment, the integrated operating handle on the eccentric cam extends beyond the slot, providing a convenient point of force for the operator to manually rotate the eccentric cam without the need for additional tools. This eliminates the need for tools and further enhances assembly and disassembly convenience, allowing for quick cable securing and release, especially in confined spaces, improving operational efficiency.

[0042] Specifically, it also includes a coil spring sleeve 16 and a rubber sleeve 17. A welding sleeve 18 is provided at one end of the coil spring sleeve, and the welding sleeve is fixedly connected to the inner wall of the outlet end of the center hole. The rubber sleeve is connected to the other end of the coil spring sleeve, and a chamfered corner 19 is provided at the end of the rubber sleeve away from the coil spring sleeve.

[0043] In this embodiment, a coiled spring sleeve is welded to the central hole outlet, providing axial support and bending protection for the cable. A rubber sleeve is attached to the end of the coiled spring sleeve, and its rounded corners reduce wear when the cable is bent while enhancing sealing performance. The coiled spring sleeve effectively resists axial tension and bending stress on the cable, protecting it from excessive bending and mechanical damage. The rubber sleeve and rounded corners further reduce the risk of cable wear, extending its service life while enhancing the protective performance of the outlet.

[0044] Specifically, it also includes a rubber pad 20 and a waterproof sealing sleeve 21. The waterproof sealing sleeve is installed on the wire inlet end of the center hole, and its opening has an elastic sealing lip 22 that shrinks radially inward. The rubber pad is placed on the flange base, and the rubber pad is provided with a matching hole 23 corresponding to the fixing hole.

[0045] In this embodiment, the elastic sealing lip of the waterproof sealing sleeve fits tightly with the cable at the incoming end to achieve waterproof sealing; the rubber gasket is placed between the flange base and the mounting surface, and cooperates with the fastening bolts of the fixing holes to enhance the sealing and buffering effect of the overall installation.

[0046] Specifically, a guide groove 24 is provided on the bottom surface of the slot, and a guide boss 25 matching the guide groove is provided on the bottom surface of the arc-shaped pressure ring. The width of the guide groove is 0.5-1.5 mm greater than that of the guide boss.

[0047] In this embodiment, the guide grooves on the slotted bottom surface cooperate with the guide bosses on the bottom surface of the arc-shaped pressure ring to form a sliding guide structure. A 0.5-1.5mm gap ensures both smooth sliding of the arc-shaped pressure ring and lateral deflection within a certain range, facilitating the operation and tightening of the eccentric cams on both sides. The guide structure constrains the movement of the arc-shaped pressure ring, ensuring its radial contraction and avoiding uneven clamping caused by excessive deflection. Furthermore, the appropriate gap design balances sliding smoothness with positioning accuracy, enhancing the stability of the overall structure.

[0048] The present application also provides a method for using a flange-type cable connector, comprising the following steps: Step 1) Pass the cable through the waterproof sealing sleeve and the center hole of the flange base in sequence, ensuring that the cable fits tightly against the elastic sealing lip. Step 2) Tighten the fastening bolts to secure the device; Step 3) Rotate the eccentric cam so that its outer contour pushes the arc-shaped pressing ring to contract radially until the cable is compressed and fixed.

[0049] This application is simple, easy to use, and easy to assemble and disassemble. During installation, first thread the cable through the center hole and waterproof seal to ensure the cable path is correct. Then, tighten the bolts to ensure a secure installation. Finally, rotate the eccentric cam to drive the arc-shaped pressure ring to clamp the cable, and you're done. For disassembly, simply rotate the eccentric cam to release it. Assembly and disassembly are very convenient, requiring no tools.

[0050] Technical personnel should note: Although the present invention has been described according to the above specific implementation methods, the concept of the present invention is not limited to this invention. Any modification using the concept of the present invention will be included in the scope of protection of this patent right.

Claims

1. A flange type cable connector, characterized in that include: A flange base, wherein the flange base has a through center hole in the middle, a slot connected to the center hole is provided on the side thereof, and a plurality of fixing holes are provided on the periphery of the center hole, at least one of the plurality of fixing holes is located on one side of the slot; An arc-shaped pressure ring, which is arranged in the slot and can slide radially along the slot; a fastening bolt, the fastening bolt being passed through the fixing hole; The eccentric cam is rotatably connected to the fastening bolt on the outside of the slot, and the outer contour surface of the eccentric cam abuts against the outer wall of the arc pressure ring. By rotating the eccentric cam, the outer contour surface of the eccentric cam pushes the arc pressure ring to radially contract toward the center hole to compress the cable.

2. The flange type cable connector according to claim 1, characterized in that: There are two fixing holes located on one side of the slot, which are symmetrically distributed on both sides of the arc-shaped pressure ring.

3. The flange type cable connector according to claim 1, characterized in that: The outer wall of the arc-shaped pressure ring is provided with a concave surface matching the eccentric cam, and a plurality of first convex steps are arranged at intervals on the surface of the concave surface. Second convex steps matching the first convex steps are arranged at intervals on the outer contour surface of the eccentric cam, and the first convex steps and the second convex steps are interlocked with each other to achieve a stable connection.

4. The flange type cable connector according to claim 2, characterized in that: The middle part of the fastening bolt located on one side of the slot is a polished rod section, and limiting steps are set at both ends of the polished rod section. A sleeve is set at the center of the eccentric cam, and the sleeve can be rotatably sleeved on the polished rod section between the two limiting steps.

5. The flange type cable connector according to claim 3, characterized in that: An operating handle is integrally provided on the eccentric cam, and a portion of the operating handle extends out of the slot.

6. The flange type cable connector according to any one of claims 1 to 5, characterized in that: It also includes a coil spring sleeve and a rubber sleeve. A welding sleeve is provided at one end of the coil spring sleeve, and the welding sleeve is fixedly connected to the inner wall of the outlet end of the center hole. The rubber sleeve is connected to the other end of the coil spring sleeve, and a chamfer is provided at the end of the rubber sleeve away from the coil spring sleeve.

7. The flange type cable connector according to any one of claims 1 to 5, characterized in that: It also includes a rubber pad and a waterproof sealing sleeve. The waterproof sealing sleeve is installed on the wire inlet end of the center hole, and its opening has an elastic sealing lip that shrinks radially inward. The rubber pad is placed on the flange base, and the rubber pad is provided with a matching hole corresponding to the fixing hole.

8. The flange type cable connector according to claim 1, characterized in that: The bottom surface of the slot is provided with a guide groove, and the bottom surface of the arc-shaped pressure ring is provided with a guide boss matching the guide groove. The width of the guide groove is 0.5-1.5 mm larger than the width of the guide boss.

9. A method for using the flange type cable connector according to any one of claims 1 to 8, characterized in that include: Step 1) Pass the cable through the waterproof sealing sleeve and the center hole of the flange base in sequence, ensuring that the cable fits tightly against the elastic sealing lip. Step 2) Tighten the fastening bolts to secure the device; Step 3) Rotate the eccentric cam so that its outer contour pushes the arc-shaped pressing ring to contract radially until the cable is compressed and fixed.

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