Anti-loosening connecting hardware

Abstract

A kind of anti-loose connecting hardware, one aspect adopts the structure of traditional screw locking, such as movable screw, the other aspect adopts locking block and locking plate locking, movable screw and lock block screw axis cross, so that it can be realized in two directions Thread locking, this design has better anti-loose effect for vibration, cold and hot alternating environment, at the same time, locking block and locking plate locking can greatly increase the locking effect of movable clamp, theoretically, it is almost impossible to move away from the cable and cause loosening.The driving seat drives the side sliding clamp to move quickly, the side sliding clamp is driven by driving screw and uses the performance of thread self-locking to reduce the probability of side sliding clamp sliding, and then the locking seat plate and locking clamp plate are clamped to greatly increase the locking effect of driving seat, theoretically, the driving seat is almost impossible to slide.In addition, the protrusion clamps on the outer sleeve of the cable, on the one hand, it can greatly increase the friction, on the other hand, it can form resistance in the length direction of the cable, and the anti-loose effect is better.

Description

Technical Field

[0001] This utility model relates to an electrical fitting, and more particularly to an anti-loosening connection fitting. Background Technology

[0002] Power connection hardware refers to metal accessories used in power systems for connecting, fixing, and protecting overhead transmission lines and substation equipment. They primarily function to transmit mechanical loads, maintain electrical continuity, and provide protection. Currently, power connection hardware mainly uses screws to provide clamping force to secure cables. However, power connection hardware is subject to vibration, thermal expansion and contraction, and aging over extended periods, making it prone to loosening. Existing technologies also include various designs for anti-loosening power connection hardware, as seen in patent applications with publication numbers CN216530466U and CN119093042A.

[0003] However, existing technologies still struggle to solve the problem of preventing cable loosening. Some technologies use spikes inserted into the cable's rubber sheath, but this method can damage the cable and its effectiveness in preventing loosening is generally limited. Other technologies use multi-directional cable clamping to ensure effective clamping, but loosening still occurs easily over time.

[0004] After investigation, the applicant found that loosening was mainly caused by thermal expansion and contraction, vibration, etc., during prolonged use. Loosening was particularly common with screws tightened in one direction, and the lack of markings made it difficult to detect loosening in a timely manner. Therefore, how to achieve stable anti-loosening over a long period and how to promptly detect loosening for easy maintenance are the technical problems that need to be solved. Utility Model Content

[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by this utility model is to provide an anti-loosening connecting hardware that can achieve stable and long-term anti-loosening.

[0006] To achieve the above objectives, this utility model provides an anti-loosening connecting hardware for fixing cables, including a base and an end seat. There are two end seats, which are respectively installed on both sides of the base. The base is provided with a clamping groove and a slider groove. A movable retainer is installed in the movable slider groove of the end seat. The cable is clamped between the movable retainer and the side-sliding retainer. The side-sliding retainer is installed in the slider groove. The side sliding bracket is installed on one end of the side sliding shaft, and the other end of the side sliding shaft enters the clamping groove to assemble with the side sliding block. A roller is installed on the side sliding block assembly, and the roller is inserted into the drive groove. The drive groove is set on the drive seat, and the drive seat is installed in the clamping groove. The drive seat and one end of the drive screw are assembled by threaded engagement, and the other end of the drive screw passes through the base and is assembled with the base.

[0007] As a further improvement of this utility model, a side sliding spring is fitted on the part of the side sliding shaft located between the side sliding seat and the side wall of the slider groove, and the two ends of the side sliding spring are pressed against the side wall of the sliding seat and the side wall of the slider groove, respectively.

[0008] As a further improvement of this utility model, the base is also provided with a movable half-groove and a fixed half-groove. The movable half-groove and the fixed half-groove together form a through hole through which the cable passes.

[0009] As a further improvement of this utility model, locking seat plates are respectively installed on both sides of the drive seat, and locking tooth grooves are provided on the locking seat plates. The locking tooth grooves are connected to the locking plate, and locking teeth are provided on the locking plate. The locking teeth are inserted into the locking tooth grooves. The locking plate is fitted over one end of the locking screw and is threaded to it. Two locking plates engage and slide with corresponding locking plate slots and side cover slots respectively. The side cover slots are set on the side cover, and the side cover is installed on the base. The other end of one locking screw protrudes from the base and is assembled with the base. The other end of the other locking screw protrudes from the side cover and is assembled with the side cover.

[0010] As a further improvement of this utility model, the movable card holder is provided with a movable screw sleeve, which is fitted over the movable screw and engaged with it by thread, and the movable screw is installed on the end seat.

[0011] As a further improvement of this utility model, the movable card seat is provided with a backstop plate, and the backstop plate is provided with backstop teeth; the backstop plate is engaged and slidably installed into the mating groove, and the backstop teeth on the backstop locking block are engaged into the tooth grooves between adjacent backstop teeth. The anti-reverse locking block is engaged and slidably installed in the locking block groove, and a locking block screw sleeve is provided on the anti-reverse locking block. The locking block screw sleeve is fitted outside one end of the locking block screw and is assembled with it by thread. The other end of the locking block screw protrudes from the base, and the locking block screw is assembled with the base.

[0012] As a further improvement of this utility model, the cross-sections of the locking teeth, locking grooves, anti-reverse teeth, and anti-reverse teeth are all trapezoidal. When the locking teeth and locking grooves are assembled, they are clamped by the inclined side. When the anti-reverse teeth and anti-reverse teeth are engaged with each other, they are clamped with each other by the inclined side.

[0013] As a further improvement of this utility model, the movable card holder and the side sliding card holder are also equipped with a clamping component. The clamping component has several protrusions on the side wall facing the cable, and the protrusions are used to clamp the cable to the outer wall.

[0014] As a further improvement of this utility model, the drive seat has a hollow drive cavity inside, and a drive seat plate is installed on one end of the drive seat. A screw plate is installed in the clamping groove. The screw plate passes through the drive cavity and the drive seat can slide relative to the screw plate. The screw plate is assembled with one end of the drive screw, and the other end of the drive screw passes through the drive seat plate, then out of the base and is assembled with the base.

[0015] As a further improvement of this utility model, an indicator pen is also installed on the end seat. The indicator pen stores waterproof ink or waterproof coating, and the end of the indicator pen that outputs waterproof ink or waterproof coating is pressed against the outer wall of the cable.

[0016] The beneficial effects of this utility model are: This invention employs a traditional screw-locking structure, such as a movable screw, and a locking block and plate for further locking. The movable screw and the locking block's screw axes intersect, allowing for threaded locking in two directions. This design provides better anti-loosening performance in environments with vibration and alternating hot and cold temperatures. The locking block and plate significantly increase the locking effect of the movable bracket, theoretically making it virtually impossible for it to move away from the cable and loosen. The drive seat propels the sliding bracket to move rapidly. The sliding bracket, driven by a drive screw and utilizing its self-locking thread, reduces the probability of slippage. The locking plate and locking plate further enhance the locking effect of the drive seat, theoretically making it almost impossible for the drive seat to slide. Additionally, the protrusions clamping onto the cable's outer sheath greatly increase friction and create resistance along the cable's length, ensuring effective cable clamping and providing even better anti-loosening protection. Using trapezoidal teeth or inclined sidewalls of the teeth to clamp together can greatly increase the flexibility of locking, no longer relying on accurate locking for each positioning, while the clamping effect will not decrease. The anti-loosening effect is very stable in vibration environment. Compared with the current method of simply locking with screws, it has higher reliability and stronger adaptability to vibration environment, hot and cold environment and aging environment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the structure of this utility model. Figure 3 ; Figure 4 yes Figure 3 Sectional view of AA; Figure 5 yes Figure 4 Enlarged view at F1; Figure 6 yes Figure 3 BB section view; Figure 7 yes Figure 4 CC section view; Figure 8 The explosion occurred in some parts of this utility model. Figure 1 ; Figure 9 The explosion occurred in some parts of this utility model. Figure 2 ; Figure 10 This is a partial structural schematic diagram of the present invention. Figure 1 ; Figure 11 This is a partial structural schematic diagram of the present invention. Figure 2 ; Figure 12 This is a partial structural schematic diagram of the present invention. Figure 3 ; Figure 13 This is a partial structural schematic diagram of the present invention. Figure 4 ; Figure 14 This is a partial structural schematic diagram of the present invention. Figure 5 . Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] See Figures 1-14 The anti-loosening connection hardware of this embodiment includes a base 110, a side cover 120, and an end seat 130. The base 110 is provided with an installation part 111, which is used to assemble and fix with an external device to install the entire anti-loosening connection hardware.

[0020] The base 110 is provided with a clamping groove 112, a slider groove 113, a mating groove 114, a locking block groove 116, a locking plate groove 117, and a fixed half groove 101. There are two end seats 130, which are respectively installed on both sides of the base 110. The base 130 is also provided with a movable half groove 132 and a movable sliding groove 131. The movable half groove 132 and the fixed half groove 101 together form a through hole, through which the cable 700 passes.

[0021] A movable retainer 510 is engaged and slidably mounted within the movable slide groove 131. The movable retainer 510 is equipped with a stop plate 520 and a movable threaded sleeve 511. The stop plate 520 has stop teeth 521. The movable threaded sleeve 511 is fitted over the movable screw 230 and is threadedly engaged with it. The movable screw 230 is rotatably mounted on the end seat 130 but cannot move axially. After the movable screw 230 rotates, the threaded sleeve drives the movable retainer 510 to move axially along the movable screw 230.

[0022] The movable retaining base 510 is also equipped with a clamping member 530. The clamping member 530 has several protrusions 531 on its side wall facing the cable 700. These protrusions 531 are used to press against the outer wall of the cable 700 and generate high friction, thereby ensuring the cable 700 is locked in place. The clamping member 530 can be fixed to the movable retaining base 510 with screws. The clamping member 530 can be made of a high-friction coefficient material, such as rubber (e.g., tire rubber) or steel with a fine particle surface.

[0023] A drive seat 410 is engaged and slidably mounted in the clamping groove 112. The drive seat 410 is provided with a drive groove 411, which is inclined on the end face of the drive seat (not parallel to the four sides of the drive seat). The drive seat 410 has a hollow drive cavity 413 inside, and a drive seat plate 412 is mounted on one end of the drive seat 410. A screw plate 115 is installed in the clamping groove 112. The screw plate 115 passes through the drive cavity 413, and the drive seat 410 can slide relative to the screw plate 115. The screw plate 115 is circumferentially rotatable but not axially movable at one end of the drive screw 250. The other end of the drive screw 250 passes through the drive seat plate 412 and then out of the base 110, and is circumferentially rotatable but not axially movable at the base 110. When the drive screw 250 rotates, it can drive the drive seat 410 to move along its axial direction through the thread, thereby driving the drive seat 410 to slide in the clamping groove 112.

[0024] The drive groove 411 engages with and slides with the roller sleeve 651. The roller sleeve 651 is rotatably mounted on the roller sleeve shaft 650. The roller sleeve shaft 650 is mounted on the side slider 630. The side slider 630 is mounted on one end of the side sliding shaft 620. The other end of the side sliding shaft 620 passes through the base 110, is fitted with a side sliding spring 640, and is assembled with the side sliding bracket 540. The side sliding bracket 540 engages with and slides within the slider groove 113. The two ends of the side sliding spring 640 press against the side wall of the slider groove 113 and the side sliding bracket 540, respectively, thereby applying a spring force to push the side sliding bracket 540 toward the end seat to ensure that the side sliding bracket 540 clamps the cable 700.

[0025] Another clamping element 530 is installed on the sliding bracket 540. The clamping element 530 of the sliding bracket 540 and the clamping element 540 of the movable bracket 510 are respectively clamped on both sides of the cable 700 to ensure sufficient clamping force. At the same time, the protrusion is not a sharp design, so that the protrusion 531 can be pressed into the rubber sheath of the cable 700 to form clamping force and greater friction, without directly puncturing the rubber sheath of the cable, which would reduce the cable strength and protection performance, and the anti-loosening ability is better.

[0026] The anti-reverse plate 520 is engaged and slidably installed into the mating groove 114, and the anti-reverse locking teeth 611 on the anti-reverse locking block 610 are engaged into the tooth grooves between adjacent anti-reverse teeth 521, thereby clamping the anti-reverse plate 520 to prevent the anti-reverse plate 520 from sliding relative to the mating groove 114.

[0027] The anti-reverse locking block 610 is engaged and slidably installed within the locking block groove 116, and a locking block sleeve 612 is provided on the anti-reverse locking block 610. The locking block sleeve 612 is fitted over one end of the locking block screw 240 and is screwed onto it. The other end of the locking block screw 240 protrudes from the base 110. The locking block screw 240 and the base 240 are rotatable but not axially movable. When the locking block screw 240 rotates, it drives the anti-reverse locking block 610 to slide along the locking block groove 116, thereby causing the anti-reverse locking block 610 to move away from or towards the anti-reverse plate 520.

[0028] Preferably, locking plates 420 are respectively installed on both sides of the drive seat 410. The locking plates 420 are provided with locking grooves 421. The locking grooves 421 and locking plates 430 are provided with locking teeth 431. The locking teeth 431 are engaged in the locking grooves 421. The locking plates 430 are fitted around one end of the locking screw 260 and are threaded together with it. Two locking plates 430 are respectively engaged and slidably assembled with corresponding locking plate grooves 117 and side cover grooves 121. The side cover groove 121 is disposed on the side cover 120, and the side cover 120 is mounted on the base 110. One locking screw 260 has its other end protruding from the base 110. This locking screw 260 is rotatably assembled with the base 110 but cannot move axially. The other locking screw 260 has its other end protruding from the side cover 120. This locking screw 260 is rotatably assembled with the side cover 120 but cannot move axially. When the locking screw 260 rotates, it can drive the corresponding locking plate 430 to move along its axial direction, thereby causing the locking plate 430 to move closer to or away from the drive seat 420.

[0029] Preferably, the cross-sections of the locking teeth 431, locking grooves 421, anti-reverse teeth 521, and anti-reverse teeth 611 are all trapezoidal. This design allows the locking teeth 431 and locking grooves 421 to be clamped together using their inclined sides when assembled, and the anti-reverse teeth 521 and anti-reverse teeth 611 to be clamped together using their inclined sides when engaged, achieving better anti-reverse and locking effects. This design mainly considers that in actual use, it is difficult for the locking teeth 431 and locking grooves 421, and the anti-reverse teeth 521 and anti-reverse teeth 611 to be completely aligned and clamped together. The trapezoidal design can be flexibly adapted using the inclined sidewalls, thereby ensuring effective locking.

[0030] Preferably, the first screw 210 passes through the end seat 130 and is screwed into the base 110 to fix the end seat 110 onto the base 110.

[0031] Preferably, the second screw 220 passes through the side cover 120 and is screwed into the base 110 to fix the side cover 120 onto the base 110.

[0032] Preferably, an indicator pen 310 is also installed on the end cap 130. The indicator pen 310 stores waterproof ink or waterproof coating, and the end of the indicator pen 310 that outputs the waterproof ink is pressed against the outer wall of the cable 700. Once the cable 700 moves between itself and the end cap, it will leave obvious marks on the side wall of the cable, making it easy to detect and maintain in a timely manner.

[0033] The usage process of this embodiment is as follows: S100. Select the corresponding clamping part 530 according to the cable diameter, and then install the clamping part 530 on the movable bracket 510 and the side sliding bracket 540 respectively.

[0034] S200. Insert the cable 700 into the fixed half-groove 101, and then install the corresponding end bracket 130. Fix the end bracket 130 to the base 110 with the first screw 210.

[0035] S300, The base is fixed to the corresponding external device by means of the mounting part 111.

[0036] S400, rotate the drive screw 250 to drive the drive seat 410 to move downward ( Figure 13 The drive seat 410 drives the side sliding shaft 620 to move toward the end seat 130 through the drive groove 411, so that the side sliding seat 540 is pressed against one side of the cable 700.

[0037] S500, rotate the locking screw 260 to drive the locking plate 430 to move towards the locking seat plate 420 so that the locking tooth groove and the locking tooth 431 engage and assemble, locking the drive seat 410.

[0038] S600, rotate the movable screw 230 to drive the movable bracket 510 to move toward the base 110 until the movable bracket 510 presses against the other side of the cable 700.

[0039] S700, rotate the locking block screw 240 to drive the anti-reverse locking block 610 to move towards the anti-reverse plate 520 until the anti-reverse teeth 521 and anti-reverse locking teeth 611 engage and lock together, thus completing the cable locking.

[0040] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0041] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0042] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly defined.

[0043] In this application, a circumferentially rotatable assembly is a connection assembly that can rotate relative to each other, such as an assembly using bearings; a circumferentially rotatable but axially movable assembly is one that can rotate relative to each other but cannot move axially, such as by installing shaft clips on both sides of the shaft and the mounting device to prevent the shaft from moving axially; a circumferentially rotatable and axially movable assembly is a movable assembly, such as an assembly where the shaft passes through a shaft hole; an assembly that cannot rotate circumferentially but can move axially can be an assembly using spline grooves or spline mating.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. Anti-loosening connectors, used to secure cables, characterized by: It includes a base and end seats, with two end seats respectively installed on both sides of the base. The base is provided with a clamping groove and a slider groove. A movable retainer is installed in the movable slider groove of the end seat. The cable is clamped between the movable retainer and the side sliding retainer, and the side sliding retainer is installed in the slider groove. The side sliding bracket is installed on one end of the side sliding shaft, and the other end of the side sliding shaft enters the clamping groove to assemble with the side sliding block. A roller is installed on the side sliding block assembly, and the roller is inserted into the drive groove. The drive groove is set on the drive seat, and the drive seat is installed in the clamping groove. The drive seat and one end of the drive screw are assembled by threaded engagement, and the other end of the drive screw passes through the base and is assembled with the base.

2. The anti-loosening connection fitting according to claim 1, characterized in that: A side-sliding spring is fitted on the portion of the side-sliding shaft located between the side-sliding bracket and the side wall of the slider groove. The two ends of the side-sliding spring are pressed against the side walls of the side-sliding bracket and the slider groove, respectively.

3. The anti-loosening connection fitting according to claim 1, characterized in that: The base is also provided with a movable half-groove and a fixed half-groove. The movable half-groove and the fixed half-groove together form a through hole through which the cable passes.

4. The anti-loosening connecting hardware according to any one of claims 1-3, characterized in that: Locking plates are installed on both sides of the drive seat. Locking slots are provided on the locking plates. Locking slots are connected to locking plates. Locking teeth are provided on the locking plates. Locking teeth are inserted into the locking slots. The locking plates are fitted around one end of the locking screw and are threaded together with it. Two locking plates engage and slide with corresponding locking plate slots and side cover slots respectively. The side cover slots are set on the side cover, and the side cover is installed on the base. The other end of one locking screw protrudes from the base and is assembled with the base. The other end of the other locking screw protrudes from the side cover and is assembled with the side cover.

5. The anti-loosening connection fitting according to any one of claims 1 to 3, characterized in that: The movable bracket is provided with a movable screw sleeve, which is fitted over the movable screw and engaged with it by screwing. The movable screw is installed on the end seat.

6. The anti-loosening connection fitting according to claim 5, characterized in that: The movable card holder is provided with a backstop plate, and the backstop plate is provided with backstop teeth; the backstop plate is engaged and slidably installed into the mating groove, and the backstop teeth on the backstop locking block are engaged into the tooth grooves between adjacent backstop teeth; The anti-reverse locking block is engaged and slidably installed in the locking block groove, and a locking block screw sleeve is provided on the anti-reverse locking block. The locking block screw sleeve is fitted outside one end of the locking block screw and is assembled with it by thread. The other end of the locking block screw protrudes from the base, and the locking block screw is assembled with the base.

7. The anti-loosening connection fitting according to claim 6, characterized in that: The cross-sections of the locking teeth, locking grooves, anti-reverse teeth, and anti-reverse teeth are all trapezoidal. When the locking teeth and locking grooves are assembled, they are clamped together by using the inclined sides. When the anti-reverse teeth and anti-reverse teeth are engaged with each other, they are clamped together by using the inclined sides.

8. The anti-loose connection fitting according to claim 1, characterized in that: The movable bracket and the side sliding bracket are also equipped with clamping components. Several protrusions are provided on the side wall of the clamping component facing the cable. The protrusions are used to clamp the cable to the outer wall.

9. The anti-loosening connecting hardware according to claim 1, characterized in that: The drive seat has a hollow drive cavity inside, and a drive seat plate is installed on one end of the drive seat. A screw plate is installed in the clamping groove. The screw plate passes through the drive cavity and the drive seat can slide relative to the screw plate. The screw plate is assembled with one end of the drive screw, and the other end of the drive screw passes through the drive seat plate, then out of the base and is assembled with the base.

10. The anti-loose connection fitting according to any one of claims 1 to 3, 6 to 9, characterized in that: The end seat is further provided with a pointer, the pointer is internally provided with waterproof ink or waterproof paint, and one end of the pointer outputs the waterproof ink or waterproof paint and is pressed against the outer wall of the cable.

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