A highway signal lamp waterproof quick connector

Abstract

This utility model discloses a waterproof quick-connect connector for highway traffic lights, relating to the field of cable line connector technology. It includes a fixed threaded tube with a through hole inside. A fixing component is fixedly fitted onto the outer wall of the fixed threaded tube. One end of the fixed threaded tube is fixedly connected to a clamping tube, and the other end has a locking nut threaded onto its outer wall. A fastening nut is threaded onto the outer wall of the fixed threaded tube near the clamping tube. A reinforcing component is fixedly installed on the top surface of the fastening nut. Through the locking plate and the locking block engaging, and with the continuous pre-tightening force provided by the thrust spring, a stable mechanical lock is formed between the fastening nut and the fixing component, effectively preventing loosening of the threads due to long-term vibration. Simultaneously, the reinforcing slider further locks the tilt posture of the locking plate through the cooperation of the limiting groove and the limiting block. Combined with the guide strip, this ensures smooth operation and effectively improves the connection reliability and anti-loosening capability of the connector.

Description

Technical Field

[0001] This utility model relates to the field of cable line joint technology, specifically a waterproof quick-connect joint for highway traffic lights. Background Technology

[0002] Highway signal light waterproof quick connectors are designed specifically for traffic facilities. They are waterproof, dustproof, and immersion-resistant to ensure stable signal transmission. They are also shockproof and anti-aging, meeting the stringent requirements of long-term outdoor use.

[0003] In the long-term outdoor application of highway traffic lights, the connectors mainly rely on threaded mating to connect the fastening nut and the connector body. However, the continuous low-frequency vibration generated by road vehicles can cause the fastening nut to gradually loosen, which can lead to cable pulling or even signal interruption, and may also threaten traffic safety.

[0004] However, threaded connections alone cannot effectively resist the loosening tendency under vibration. As the usage time increases, the fastening nut will gradually move back, causing the clamping force of the clamping tube on the cable to weaken. This not only causes the waterproof sealing interface to fail, but may also cause poor contact due to cable displacement, which will significantly shorten the equipment maintenance cycle and service life. Utility Model Content

[0005] The purpose of this utility model is to provide a waterproof quick-connect connector for highway traffic lights to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A waterproof quick-connector for highway traffic lights includes a fixed threaded tube with a through hole inside. A fixing member is fixedly sleeved on the outer wall of the fixed threaded tube. A clamping tube is fixedly connected to one end of the fixed threaded tube, and a locking nut is threaded on the outer wall of the other end. A fastening nut is threaded on the outer wall of the fixed threaded tube near the clamping tube, and a through hole is opened inside the fastening nut.

[0008] A reinforcing component is fixedly installed on the top surface of the fastening nut. The reinforcing component includes two sets of fixing blocks. Both sets of fixing blocks are fixedly installed on the top surface of the fastening nut. A locking plate is rotatably installed between the two sets of fixing blocks through a pin. The end of the locking plate is provided with a locking hole. A locking block is fixedly installed on the top surface of the fastener and the locking block is embedded in the locking hole.

[0009] The fastener has an inner groove at one end near the locking nut, and a waterproof component is fixedly installed in the inner groove. The waterproof component includes a sealing ring, which is slidably installed in the inner groove of the fastener.

[0010] As a further embodiment of this utility model, two sets of thrust springs are fixedly installed on the bottom surface of the latch plate. The extension and retraction direction of the thrust springs is perpendicular to the latch plate, and the bottom end of the thrust springs is fixedly connected to the top surface of the fastening nut.

[0011] As a further embodiment of this utility model, a reinforcing slider is slidably sleeved on the outer wall of the end of the locking plate away from the locking block. The reinforcing slider has symmetrically opened limit grooves on both sides near the fixing block. Limit blocks are fixedly installed on the corresponding side of the two sets of fixing blocks, and the limit blocks are embedded in the limit grooves.

[0012] As a further embodiment of this utility model, a guide strip is fixedly installed on the top surface of the buckle plate, and a groove is opened inside the reinforcing slider, with the guide strip embedded in the groove.

[0013] As a further embodiment of this utility model, a push plate is slidably installed in the inner groove of the fixing member. One end of the push plate is fixedly connected to the inner wall of the fixing member by multiple sets of compensating springs, and the other end of the push plate is in contact with the sealing ring.

[0014] As a further embodiment of this utility model, the clamping tube includes a multi-lobed elastic claw piece, the outer walls of which are all inclined, and a contraction gap is reserved between adjacent two lobe elastic claw pieces. A silicone sealing sleeve is fixedly installed on the inner wall of the clamping tube.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. When using the waterproof quick-connect coupling of this utility model, the locking plate and the locking block engage with each other, and with the help of the continuous pre-tightening force provided by the thrust spring, a stable mechanical lock is formed between the fastening nut and the fixing part, which effectively prevents the threads from loosening due to long-term vibration. At the same time, the reinforcing slider further locks the tilt posture of the locking plate through the cooperation of the limiting groove and the limiting block, and together with the guide strip, ensures smooth operation, effectively improving the connection reliability and anti-loosening ability of the coupling.

[0017] 2. When the waterproof quick connector of this utility model is used, the sealing ring undergoes elastic deformation under the pressure of the locking nut, which achieves a tight fit with the cable and forms a reliable waterproof barrier. The compensating spring abuts against the push plate and continuously applies pressure to the sealing ring, which automatically compensates for the gap caused by aging or wear of the sealing ring and maintains the durability of the sealing effect. At the same time, the silicone mounting block can enhance the stability of the sealing ring and the convenience of disassembly and assembly. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a waterproof quick-connector for highway traffic lights.

[0019] Figure 2This is a schematic diagram of the structure of a fixed threaded pipe in a waterproof quick-connect coupling for highway traffic lights.

[0020] Figure 3 This is a structural schematic diagram of a reinforcing component in a waterproof quick-connect coupling for highway traffic lights.

[0021] Figure 4 This is a structural exploded view of a reinforcing component in a waterproof quick-connect coupling for highway traffic lights.

[0022] Figure 5 This is a cross-sectional view of the waterproof component in a waterproof quick-connect coupling for highway traffic lights.

[0023] In the diagram: 1. Fixed threaded pipe; 2. Fastener; 3. Clamping pipe; 4. Locking nut; 5. Fastening nut;

[0024] 6. Reinforcing components; 601. Fixing block; 602. Locking plate; 603. Clip hole; 604. Clip block; 605. Thrust spring; 606. Reinforcing slider; 607. Limiting groove; 608. Limiting block; 609. Guide strip; 610. Stop strip;

[0025] 7. Waterproof components; 701. Sealing ring; 702. Push plate; 703. Compensating spring; 704. Silicone mounting block; 705. Mounting slot; 8. Silicone sealing sleeve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 In this embodiment of the utility model, a waterproof quick connector for highway traffic lights includes a fixed threaded tube 1 with a through hole for installing cables. A fixing member 2 is fixedly sleeved on the outer wall of the fixed threaded tube 1. A clamping tube 3 is fixedly connected to one end of the fixed threaded tube 1, and a locking nut 4 is threaded on the outer wall of the other end. A fastening nut 5 is threaded on the outer wall of the fixed threaded tube 1 near the clamping tube 3, and a through hole is opened in the fastening nut 5 to facilitate cable insertion.

[0028] A reinforcing component 6 is fixedly installed on the top surface of the fastening nut 5 to enhance the stability of the connection between the fastening nut 5 and the fastener 2. The reinforcing component 6 includes two sets of fixing blocks 601, both of which are fixedly installed on the top surface of the fastening nut 5. A locking plate 602 is rotatably installed between the two sets of fixing blocks 601 via a pin, and a locking hole 603 is provided at the end of the locking plate 602. A locking block 604 is fixedly installed on the top surface of the fastener 2, and the locking block 604 is embedded in the locking hole 603. By pressing the locking plate 602, the locking block 604 is embedded in the locking hole 603, which can effectively prevent the fastening nut 5 from loosening due to vibration and other factors, and ensure the reliability of the connection.

[0029] The fixing part 2 has an inner groove at one end near the locking nut 4, and a waterproof component 7 is fixedly installed in the inner groove. The waterproof component 7 includes a sealing ring 701, which is slidably installed in the inner groove of the fixing part 2. When the locking nut 4 is tightened, it can compress the sealing ring 701 to produce elastic deformation, thereby effectively sealing the cable, preventing moisture and dust from entering the connector, and ensuring the normal operation of the signal light in harsh outdoor environments.

[0030] It should be noted that the outer wall of the fixed threaded pipe 1 is provided with a threaded groove, and the inner walls of the locking nut 4 and the fastening nut 5 are provided with internal threads that are compatible with the threaded groove. At the same time, the outer wall of the fastening nut 5 is provided with multiple sets of anti-slip strips to facilitate convenient assembly by operators.

[0031] Please see Figure 3 , Figure 4 Two sets of thrust springs 605 are fixedly installed on the bottom surface of the locking plate 602 to assist in the tight engagement between the locking plate 602 and the locking block 604. The extension and retraction direction of the thrust springs 605 is perpendicular to the locking plate 602, and the bottom end of the thrust springs 605 is fixedly connected to the top surface of the fastening nut 5.

[0032] It should be noted that the thrust spring 605 maintains its reserved elasticity in the installed state, which can continuously provide thrust to the locking plate 602, effectively preventing the locking hole 603 from accidentally disengaging from the locking block 604 due to equipment vibration or external disturbance, and enhancing the self-locking property of the reinforcement component 6.

[0033] A reinforcing slider 606 is slidably sleeved on the outer wall of the end of the locking plate 602 away from the locking block 604 to limit the free rotation of the locking plate 602, thereby further enhancing the stability of the connection. The reinforcing slider 606 has symmetrically opened limit grooves 607 on both sides near the fixing block 601. Limit blocks 608 are fixedly installed on the corresponding side of the two sets of fixing blocks 601, and the limit blocks 608 are embedded in the limit grooves 607.

[0034] It should be noted that by sliding the reinforcing slider 606, the limiting block 608 is embedded in the limiting groove 607, thereby restricting the up and down movement of the reinforcing slider 606, thus achieving the effect of locking the buckle plate 602 and effectively preventing its accidental rotation.

[0035] It should also be noted that guide grooves are provided on the corresponding sides of the two sets of fixing blocks 601, and the reinforcing slider 606 is located in the guide groove and can slide along it. This is to ensure that the limiting block 608 can be accurately embedded in the limiting groove 607 during the sliding process of the reinforcing slider 606. At the same time, both the limiting block 608 and the limiting groove 607 are provided with a certain tilt angle to ensure that the two can cooperate well when the locking plate 602 is in an tilted position. In addition, a notch is provided at the bottom of the end of the guide groove away from the locking block 604 to provide sufficient displacement space for the reinforcing slider 606 so that it can move downward after the limiting block 608 is disengaged from the limiting groove 607. This makes it easier for the operator to press the locking plate 602 to release the locking state between the locking block 604 and the locking hole 603.

[0036] A guide strip 609 is fixedly installed on the top surface of the locking plate 602 to ensure the smooth movement of the reinforcing slider 606. The reinforcing slider 606 has a sliding groove inside, and the guide strip 609 is embedded in the sliding groove, which effectively reduces the offset or jamming during the sliding process and ensures that the reinforcing slider 606 can reach the locking position smoothly and accurately.

[0037] It should be noted that a stop bar 610 is fixedly installed at the end of the locking plate 602 away from the locking block 604, which is used to limit the sliding stroke of the reinforcing slider 606 and prevent it from accidentally slipping off the locking plate 602.

[0038] Please see Figure 5 A push plate 702 is slidably installed in the inner groove of the fixing part 2. One end of the push plate 702 is fixedly connected to the inner wall of the fixing part 2 through multiple sets of compensating springs 703 to provide continuous elastic thrust to drive the push plate 702 to move towards the sealing ring 701, thereby automatically compensating for the wear of the sealing ring 701 caused by long-term use, ensuring a long-lasting and reliable sealing effect, effectively extending the service life, and its other end is in contact with the sealing ring 701.

[0039] It should be noted that one end of the compensating spring 703 is fixedly connected to the fixing member 2, and the other end is fixedly connected to the push plate 702. The end of the sealing ring 701 away from the push plate 702 is provided with a multi-lip structure to enhance the waterproof and dustproof effect, and the other end is fixedly installed with four sets of silicone mounting blocks 704. The push plate 702 has a matching mounting slot 705 inside, and the four sets of silicone mounting blocks 704 are respectively embedded in the corresponding set of mounting slots 705 to achieve a stable connection between the sealing ring 701 and the push plate 702 and convenient disassembly and assembly, effectively preventing it from shifting or falling off during use.

[0040] Please see Figure 2 The clamping tube 3 includes multiple elastic claws distributed circumferentially. The outer walls of the multiple elastic claws are all inclined, and a contraction gap is reserved between adjacent elastic claws so that the clamping tube 3 can be uniformly contracted inward when subjected to force. A silicone sealing sleeve 8 is fixedly installed on the inner wall of the clamping tube 3 to provide a reliable waterproof sealing effect when clamping the cable.

[0041] It should be noted that the end of the fastening nut 5 away from the clamping tube 3 has an inner conical surface. During the assembly process, when the fastening nut 5 is tightened, the multi-lobed elastic claw of the clamping tube 3 is gradually forced to retract inward, thereby tightly clamping the cable inserted therein. At the same time, the silicone sealing sleeve 8 on the inner wall undergoes elastic deformation under the action of clamping force, tightly adhering to the outer sheath of the cable, forming an effective waterproof sealing interface.

[0042] The working principle of this utility model is as follows:

[0043] When using this utility model, the cable is first passed through the through hole of the fastening nut 5, the clamping tube 3, and the through groove of the fixing threaded tube 1 in sequence. Then, the operator rotates the fastening nut 5. As the fastening nut 5 is continuously tightened, its inner conical surface gradually squeezes the clamping tube 3, causing its multi-lobed elastic claws to evenly close inward, thereby tightly hugging the cable sheath and fixing the cable. This effectively prevents the cable from loosening due to vibration or pulling. At the same time, the silicone sealing sleeve 8 undergoes elastic deformation under the clamping force, tightly adhering to the outer wall of the cable, which can prevent moisture and dust from penetrating along the cable surface.

[0044] While tightening the fastening nut 5, the locking plate 602 gradually approaches the locking block 604. Utilizing the inclined surface of the locking block 604, the locking hole 603 of the locking plate 602 slides into the inclined surface of the locking block 604 under the action of thrust to achieve locking. At the same time, the thrust spring 605 continuously provides an upward thrust to the locking plate 602, so that the locking hole 603 and the locking block 604 always maintain close contact, effectively preventing the locking from disengaging due to vibration and enhancing the reliability of the connection.

[0045] Furthermore, to further limit the accidental rotation of the locking plate 602, the operator can push the reinforcing slider 606 to move smoothly along the guide strip 609 on the top surface of the locking plate 602, so that the limiting block 608 gradually embeds into the limiting groove 607, thereby limiting the up and down movement of the reinforcing slider 606 and locking the locking plate 602 in the current position. Conversely, when unlocking is required, the reinforcing slider 606 can be slid in the opposite direction, thereby allowing the limiting block 608 to disengage from the limiting groove 607, and driving the reinforcing slider 606 to move down along the notch at the end of the guide groove, so that the locking plate 602 can be pressed to release the latch.

[0046] Finally, when the locking nut 4 is tightened, its end presses against the sealing ring 701, causing the sealing ring 701 to undergo elastic deformation, thereby forming a seal against the outer wall of the cable. In the long-term use, if the sealing ring 701 is under-compressed due to aging or wear, the compensating spring 703 continuously releases elastic thrust, driving the push plate 702 to move towards the sealing ring 701, automatically compensating for wear gaps and ensuring that the sealing ring 701 remains in tight contact.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A waterproof quick-connect coupling for highway traffic lights, comprising a fixed threaded pipe (1), characterized in that, The fixed threaded tube (1) has a through hole, and a fastener (2) is fixedly sleeved on the outer wall of the fixed threaded tube (1). One end of the fixed threaded tube (1) is fixedly connected to a clamping tube (3), and a locking nut (4) is threaded on the outer wall of the other end. A fastening nut (5) is threaded on the outer wall of the fixed threaded tube (1) near the clamping tube (3), and a through hole is opened in the fastening nut (5). The top surface of the fastening nut (5) is fixedly installed with a reinforcing component (6). The reinforcing component (6) includes two sets of fixing blocks (601). Both sets of fixing blocks (601) are fixedly installed on the top surface of the fastening nut (5). A locking plate (602) is rotatably installed between the two sets of fixing blocks (601) through a pin shaft. The end of the locking plate (602) is provided with a locking hole (603). The top surface of the fastener (2) is fixedly installed with a locking block (604), and the locking block (604) is embedded in the locking hole (603). The fixing member (2) has an inner groove at one end near the locking nut (4), and a waterproof component (7) is fixedly installed in the inner groove. The waterproof component (7) includes a sealing ring (701), which is slidably installed in the inner groove of the fixing member (2).

2. The waterproof quick-connect coupling for highway traffic lights according to claim 1, characterized in that, Two sets of thrust springs (605) are fixedly installed on the bottom surface of the latch plate (602). The extension and retraction direction of the thrust springs (605) is perpendicular to the latch plate (602), and the bottom end of the thrust springs (605) is fixedly connected to the top surface of the fastening nut (5).

3. A waterproof quick-connect coupling for highway traffic lights according to claim 2, characterized in that, The outer wall of the locking plate (602) away from the locking block (604) is slidably fitted with a reinforcing slider (606). The reinforcing slider (606) has symmetrically opened limiting grooves (607) on both sides near the fixing block (601). The corresponding side of the two sets of fixing blocks (601) is fixedly installed with limiting blocks (608), and the limiting blocks (608) are embedded in the limiting grooves (607).

4. A waterproof quick-connect coupling for highway traffic lights according to claim 3, characterized in that, The top surface of the latch plate (602) is fixedly installed with a guide strip (609), and the inside of the reinforcing slider (606) is provided with a groove, and the guide strip (609) is embedded in the groove.

5. A waterproof quick-connect coupling for highway traffic lights according to claim 1, characterized in that, A push plate (702) is slidably installed in the inner groove of the fixing member (2). One end of the push plate (702) is fixedly connected to the inner wall of the fixing member (2) through multiple sets of compensating springs (703), and the other end of the push plate (702) is in contact with the sealing ring (701).

6. A waterproof quick-connect coupling for highway traffic lights according to claim 1, characterized in that, The clamping tube (3) includes a multi-lobed elastic claw, the outer walls of which are all inclined, and a shrinkage gap is reserved between adjacent two-lobed elastic claws. A silicone sealing sleeve (8) is fixedly installed on the inner wall of the clamping tube (3).

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