Anti-loosening fixing device for street lamp cable junction box

Abstract

The invention discloses a street lamp cable junction box anti-loosening fixing device, and relates to the technical field of junction box anti-loosening equipment, the street lamp cable junction box anti-loosening fixing device comprises a junction box body and an anti-loosening fixing assembly connected with the junction box body, the anti-loosening fixing assembly comprises an assembling seat and a double-wedge-surface dynamic buffer structure arranged at the lower part of the assembling seat; the buffer is used for buffering the junction box body under tiny vibration; the dynamic locking rope structure is arranged at the upper part of the assembling seat and is used for secondary protection under the condition that the junction box body swings in a large range; and the buckle lock head structure is arranged in the middle of the assembly seat. According to the invention, through the gradually reinforced dynamic locking rope structure, the buckle lock head structure and the double-wedge-surface dynamic buffer structure, the large-range protection requirement from daily slight vibration to violent vibration is covered, the problem of looseness of the street lamp cable junction box in a vibration environment is effectively solved, and the street lamp cable junction box has remarkable technical advantages and application value.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-loosening equipment for junction boxes, and in particular to an anti-loosening fixing device for a street lamp cable junction box. Background Art

[0002] Cable junction boxes are key devices used to connect, branch, and protect cable joints in power, communications, lighting, and other systems. They are equivalent to the "connection hub" or "protection cabin" of the cable network. They play a core role in ensuring circuit connectivity, safety, reliability, and ease of maintenance.

[0003] Existing cable junction boxes are mostly installed on lamp poles, which can easily affect the safety and stability of the cable junction boxes due to cable movement or environmental factors. At the same time, due to the complex environmental impact, the single protection of the existing cable junction boxes is difficult to meet the requirements of preventing loosening under harsh conditions.

[0004] To this end, a device for preventing a street lamp cable junction box from loosening is now proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for preventing loosening of a street light cable junction box. This device covers a wide range of protection needs from daily mild vibrations to severe vibrations through a step-by-step strengthened dynamic locking rope structure, a buckle lock head structure, and a double-wedge surface dynamic buffer structure, effectively solving the stubborn problem of loosening of the street light cable junction box in a vibration environment, and has significant technical advantages and application value.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a device for preventing loosening of a street lamp cable junction box, comprising a junction box body, an anti-loosening fixing component connected to the junction box body, and being used for assembly with a lamp pole: the anti-loosening fixing component comprises an assembly seat, a double-wedge surface dynamic buffering structure provided at the lower portion of the assembly seat, which is used for buffering under slight vibrations of the junction box body; and a dynamic locking rope structure provided at the upper portion of the assembly seat, which is used for secondary protection under large-scale swinging of the junction box body to resist loosening caused by vibration; and also comprises a buckle locking head structure provided in the middle of the assembly seat, and when the secondary protection of the dynamic locking rope structure reaches the limit, the buckle locking head structure quickly intervenes and performs tertiary protection on the junction box body.

[0007] Preferably, the double-wedge surface dynamic buffer structure includes an assembly frame transversely fixed to the lower part of the assembly seat, two groups of telescopic column structures are longitudinally arranged on the top of the assembly frame, and each group of telescopic column structures includes two, and each of the telescopic column structures includes a through hole opened on the assembly frame, and a telescopic rod body is provided in the through hole, wherein the top of the telescopic rod body is fixed with a mounting block, and a bottom end of the telescopic rod body is provided with an inclined surface; and a first spring is provided on the outer wall of the telescopic rod between the mounting block and the assembly frame; it also includes a flexible connecting part provided on the top of each mounting block, and several of the flexible connecting parts are connected with a connecting plate on the top, wherein the connecting plate is fixed to the lower part of the assembly seat fixed to the side wall of the junction box body; and a wedge block transmission assembly provided on the assembly frame, which is used for adaptive extension and retraction of the two groups of telescopic column structures.

[0008] Preferably, the wedge transmission assembly includes two trapezoidal wedges arranged at the bottom of the assembly frame, wherein a transverse groove is opened in the middle of each trapezoidal wedge, and the wedge surfaces symmetrically arranged at both ends thereof are respectively fitted with the inclined surfaces at the bottom of the two first springs; and also includes a limiting member fixed at the bottom of the assembly frame, and the two ends of the limiting member respectively extend into the inside of the two transverse grooves and are slidingly installed with the two transverse grooves.

[0009] Preferably, the dynamic locking rope structure includes an assembly frame fixed to the upper part of the assembly seat; a first transmission plate and a second transmission plate respectively installed on the upper and lower sides of the assembly frame and capable of longitudinally limiting sliding, wherein a second spring is connected between the bottom of the second transmission plate and the assembly frame, and its side wall is fixed to a slider provided in a slide groove opened on the side wall of the assembly frame, and the first transmission plate extends out of the assembly frame and is rotatably installed with a connecting piece provided on the upper part of the assembly plate through a connecting shaft; and a third transmission plate limitedly installed between the first transmission plate and the second transmission plate and capable of laterally sliding, and the third transmission plate and the first transmission plate are hingedly connected with a hinged rod through a hinge provided thereon; and also includes a pull rope transmission assembly, which is used to tighten the assembly seat and the assembly plate when the junction box body is subjected to a large range of vibration.

[0010] Preferably, the pull-wire transmission assembly is symmetrically provided with two, each of which includes a transmission shaft rotatably mounted on one side of the third transmission plate, one end of the transmission shaft is outward and is respectively fixed with a gear and a first transmission wheel; a rack provided on the side wall of the second transmission plate and meshing with the gear; and two mounting seats provided on the assembly seat, each of which is rotatably mounted on the second transmission wheel via a rotating shaft; and also includes a rope body, wherein one end of the rope body is fixed to the first transmission wheel, and the other end thereof passes through the two second transmission wheels in sequence and is fixed to a connecting block provided on the assembly seat.

[0011] Preferably, the locking head structure includes two connecting frames symmetrically installed in the middle of the assembly seat, and an extension plate is fixed on each of the connecting frames, wherein the extension plate extends toward the assembly plate position and is installed with a connecting frame, and a transmission block is provided in the limiting groove formed by the connecting frame and the end of the extension plate; and a screw hole is horizontally opened on the upper part of the transmission block, a screw is provided in the screw hole, a pressure block is fixed at one end of the screw, and a nut is fixed at the other end, and the two nuts are arranged opposite to each other; and it also includes a driving structure for driving the two transmission blocks to move closer to and away from the junction box body.

[0012] Preferably, the bottom of the limiting groove is arc-shaped.

[0013] Preferably, the driving structure includes an electric telescopic rod fixed on the inner side of each extension plate, and a U-shaped frame is fixed to the telescopic end of the electric telescopic rod, wherein the U-shaped frame is rotatably mounted to the lower part of the transmission block on the same side as it through a mounting shaft provided at its opposite end.

[0014] Preferably, a pressure sensor is further provided between the side of the second transmission plate away from the first transmission plate and the assembly frame.

[0015] Preferably, anti-slip layers are respectively provided on opposite sides of the two nuts.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, when the cable vibrates and pulls the junction box body, the junction box body tends to be slightly displaced relative to the device. At this time, the double-wedge-surface dynamic buffer structure converts the vertical tension / displacement generated by the cable vibration into horizontal pressure through the wedge-shaped inclined surface principle. This pressure acts directly on the double-wedge-surface dynamic buffer structure, so that the double-wedge-surface dynamic buffer structure can adaptively move and adjust the expansion and contraction of the local position, thereby resisting loosening caused by vibration. The greater the vibration (within a certain range), the greater the resistance generated and the stronger the locking effect. This design structure is simple and reliable, does not require external energy, responds quickly, and has an excellent inhibitory effect on continuous small-amplitude vibrations.

[0018] 2. As another embodiment of the present invention, if the junction box body is affected by a large amplitude of shaking, the dynamic locking rope structure can intervene when the double-wedge surface dynamic buffer structure cannot meet the buffering effect, thereby realizing secondary protection of the junction box body. At the same time, considering the complexity of the environment, when the secondary protection of the dynamic locking rope structure reaches the limit, the locking head structure quickly intervenes and performs tertiary protection on the junction box body, increasing step by step, thereby expanding the protection range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a first viewing angle;

[0020] Figure 2 is a schematic diagram of a second perspective three-dimensional structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure from a third viewing angle of the present invention;

[0022] Figure 4 is a schematic diagram of a third perspective structure of the present invention;

[0023] Figure 5 It is a side structural schematic diagram of the present invention;

[0024] Figure 6 It is a bottom view structural schematic diagram of the present invention;

[0025] Figure 7 It is a front view structural schematic diagram of the present invention;

[0026] Figure 8 This is a cross-sectional diagram of AA;

[0027] Figure 9 Schematic diagram of the cross-sectional structure of BB.

[0028] In the figure: 111, junction box body; 112, cable;

[0029] 211. Assembly seat; 212. Assembly frame; 213. First transmission plate; 214. Second transmission plate; 2141. Slideway; 215. Third transmission plate; 216. Articulated rod; 217. Hinge; 218. Connecting member; 219. Connecting shaft; 220. Second spring; 221. Assembly plate; 222. Rack; 223. Gear; 224. First transmission wheel; 225. Mounting seat; 226. Second transmission wheel; 227. Connecting block; 228. Rope; 229. Transmission shaft.

[0030] 311. Connecting frame; 312. Extension plate; 313. Connecting frame; 314. Transmission block; 315. Screw; 316. Nut; 317. Pressing block; 318. Electric telescopic rod; 319. U-shaped frame; 320. Limiting groove;

[0031] 411. Assembly frame; 412. Telescopic rod; 413. Mounting block; 414. First spring; 415. Flexible connection portion; 416. Trapezoidal wedge; 417. Transverse groove; 418. Limiting member; 419. Connecting plate. DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. The following describes various embodiments of the present invention in detail with reference to the accompanying drawings.

[0033] Example 1

[0034] See also Figures 1 to 9 The present invention preferably provides a technical solution: a street lamp cable junction box anti-loosening fixing device, including a junction box body 111, and an anti-loosening fixing component connected to the junction box body 111, which is used for assembly with a lamp pole: the anti-loosening fixing component includes an assembly seat 211, a double-wedge surface dynamic buffer structure provided at the lower part of the assembly seat 211, which is used for buffering under slight vibrations of the junction box body 111; and a dynamic locking rope structure provided at the upper part of the assembly seat 211, which is used for secondary protection under large-scale swing of the junction box body 111 to resist loosening caused by vibration; and also includes a buckle locking head structure provided in the middle of the assembly seat 211. When the secondary protection of the dynamic locking rope structure reaches the limit, the buckle locking head structure quickly intervenes and performs tertiary protection on the junction box body 111.

[0035] The anti-loosening fixing assembly provided in this application can be assembled with the lamp pole and realize the reinforcement and buffering process of the street light cable junction box and the lamp pole in environments that affect the stability of the street lamp (such as busy traffic sections, near bridges, industrial areas, along railway lines, and areas with strong wind vibration, etc.), thereby reducing the risk of loosening of the lamp pole and junction box;

[0036] Specific examples Figure 1 、 2 , 3, and 4, the dynamic locking rope structure, the buckle lock head structure, and the double wedge surface dynamic buffer structure are respectively installed on the upper, middle, and lower parts of the assembly seat 211. When the cable 112 vibrates and pulls the junction box body 111, the junction box body 111 tends to move slightly relative to the device. At this time, the double wedge surface dynamic buffer structure will absorb the vertical tension / displacement generated by the vibration of the cable 112. Figure 1 、 2 As shown in Figure 5, through the principle of wedge-shaped inclined plane, it is converted into horizontal pressure. This pressure acts directly on the double-wedge surface dynamic buffer structure, so that the double-wedge surface dynamic buffer structure can move adaptively and adjust the expansion and contraction of the local position, thereby resisting the loosening caused by vibration. The greater the vibration (within a certain range), the greater the resistance generated and the stronger the locking effect. This design structure is simple and reliable, does not require external energy, responds quickly, and has an excellent suppression effect on continuous small vibrations.

[0037] If the junction box body 111 is affected by a large amplitude of shaking, the dynamic locking rope structure can intervene when the double-wedge surface dynamic buffer structure cannot meet the buffering effect, thereby realizing secondary protection of the junction box body 111. At the same time, considering the complexity of the environment, when the secondary protection of the dynamic locking rope structure reaches the limit, the buckle locking head structure quickly intervenes and performs tertiary protection on the junction box body 111, increasing step by step to expand the protection range of the device. The present application covers a wide range of protection needs from daily mild vibrations to severe vibrations through the step-by-step strengthened dynamic locking rope structure, buckle locking head structure and double-wedge surface dynamic buffer structure, effectively solving the stubborn problem of loosening of street lamp cable junction boxes in vibration environments, and has significant technical advantages and application value.

[0038] Example 2

[0039] As another embodiment of the present invention, the double wedge surface dynamic buffer structure includes an assembly frame 411 fixed transversely to the lower part of the assembly seat 211, and two groups of telescopic column structures are longitudinally arranged on the top of the assembly frame 411, each group of telescopic column structures includes two, and each telescopic column structure includes a through hole opened on the assembly frame 411, and a telescopic rod body 412 is provided in the through hole, wherein a mounting block 413 is fixed to the top of the telescopic rod body 412, and a slope is provided at the bottom end thereof; and a first spring 414 is provided on the outer wall of the telescopic rod body 412 between the mounting block 413 and the assembly frame 411; and also includes a flexible connecting portion 415 provided on the top of each mounting block 413, and several flexible connecting portions 415 are connected to the top of the connecting portion. A connecting plate 419, wherein the connecting plate 419 is fixed to the lower part of the assembly seat 211 fixed to the side wall of the junction box body 111; and a wedge transmission assembly arranged on the assembly frame 411, which is used for adaptive extension and retraction of two sets of telescopic column structures; further, the wedge transmission assembly includes two trapezoidal wedges 416 arranged at the bottom of the assembly frame 411, wherein a transverse groove 417 is opened in the middle of each trapezoidal wedge 416, and the wedge surfaces symmetrically arranged at both ends thereof are respectively fitted with the inclined surfaces at the bottom of the two first springs 414; it also includes a limit member 418 fixed to the bottom of the assembly frame 411, and the two ends of the limit member 418 respectively extend into the interior of the two transverse grooves 417 and are slidingly installed with the two transverse grooves 417.

[0040] Combine Figure 5 、 9As shown, the assembly frame 411 is transversely fixed to the lower part of the assembly seat 211, and the telescopic rod body 412 where the multiple telescopic column structures are located is longitudinally telescopically installed on the top of the assembly frame 411. At the same time, a mounting block 413 is fixed to the top of each telescopic rod body 412, and its bottom is provided with an inclined surface. A connecting plate 419 connected to the assembly plate 221 has a flexible connecting portion 415 connected to the bottom of the multiple mounting blocks 413. Two trapezoidal wedge blocks 416 are provided at the bottom of the assembly frame 411, and their ends are respectively in contact with the inclined surfaces where the two groups of telescopic column structures are located. The two trapezoidal wedge blocks 416 are horizontally limited inside the assembly frame 411 by limiting members 418 and transverse grooves 417.

[0041] Therefore, when the assembly base 211 vibrates up and down or left and right due to the vibration or slight displacement of the junction box body 111, the flexible connecting parts 415 adaptably expand and contract and squeeze the corresponding telescopic rods 412. For example, if the connecting plate 419 is Figure 8 When the left side is low and the right side is high, the assembly seat 211 where the telescopic column structure on the left side is located moves downward. At this time, the telescopic rod body 412 on the left side squeezes the trapezoidal wedge block 416. The trapezoidal wedge block 416 adaptively moves to the right and squeezes the telescopic rod body 412 on the right side to move upward to adapt to the vibration state of the connecting plate 419. Due to the expansion and contraction of the telescopic rod body 412, the first spring 414 sleeved on the telescopic rod body 412 adaptively expands and contracts to resist the vibration of the connecting plate 419, thereby achieving vibration buffering for the assembly plate 221 and the junction box body 111 fixed to the connecting plate 419.

[0042] Example 2

[0043] As another embodiment of the present invention, the dynamic locking rope structure includes an assembly frame 212 fixed to the upper portion of the assembly seat 211; a first transmission plate 213 and a second transmission plate 214 respectively mounted on the upper and lower sides of the assembly frame 212 and capable of longitudinal limited sliding, wherein a second spring 220 is connected between the bottom of the second transmission plate 214 and the assembly frame 212, and its side wall is fixed to a slider provided in a slide groove 2141 provided on the side wall of the assembly frame 212, the first transmission plate 213 extends out of the assembly frame 212 and is rotatably mounted between a connecting piece 218 provided on the upper portion of the assembly plate 221 via a connecting shaft 219; and a third transmission plate 215 limitedly mounted between the first transmission plate 213 and the second transmission plate 214 and capable of transverse sliding, and a hinge rod 216 is hingedly connected to the third transmission plate 215 and the first transmission plate 213 via a hinge 217 provided thereon; and further includes a pull rope transmission assembly, which is used to tighten the assembly seat 211 and the assembly plate 221 when the junction box body 111 is subjected to a large range of vibration;

[0044] Furthermore, two pull-rope transmission assemblies are symmetrically arranged, each pull-rope transmission assembly includes a transmission shaft 229 rotatably mounted on one side of the third transmission plate 215, one end of the transmission shaft 229 is outward and is respectively fixed with a gear 223 and a first transmission wheel 224; a rack 222 is arranged on the side wall of the second transmission plate 214 and meshed with the gear 223; and two mounting seats 225 are arranged on the assembly seat 211, each mounting seat 225 is rotatably mounted with a second transmission wheel 226 through a rotating shaft; and also includes a rope body 228, wherein one end of the rope body 228 is fixed to the first transmission wheel 224, and the other end thereof passes around the two second transmission wheels 226 in turn and is fixed to the connecting block 227 arranged on the assembly seat 211.

[0045] Combine Figure 1-5 7, the first transmission plate 213 and the second transmission plate 214 are respectively limitedly mounted on the upper and lower sides of the assembly frame 212, and the third transmission plate 215 is mounted between the first transmission plate 213 and the second transmission plate 214. At the same time, the first transmission plate 213 extends out of the assembly frame 212 and is rotatably mounted between the connecting piece 218 provided on the upper part of the assembly plate 221 through the connecting shaft 219, and cooperates with the second spring 220 connected between the second transmission plate 214 and the assembly frame 212. When the junction box body 111 is subjected to a large swing, as shown in FIG. Figure 5 、 9 As shown, at this time, the angle between the first transmission plate 213 and the assembly plate 221 changes adaptively, and drives the first transmission plate 213 and the second transmission plate 214 to move longitudinally and the third transmission plate 215 to move laterally. At this time, the rope transmission assembly assembled on the third transmission plate 215 can adjust the tensioning force of the rope transmission assembly according to the angle between the first transmission plate 213 and the assembly plate 221, that is, the swinging force applied to the junction box body 111. At the same time, the second spring 220 adaptively expands and contracts to resist the longitudinal movement of the first transmission plate 213 and the second transmission plate 214, and further resists the change of the angle between the first transmission plate 213 and the assembly seat 211.

[0046] like Figure 5 、 9 Specifically, when the junction box body 111 and the assembly plate 221 move downward, the first transmission plate 213 and the second transmission plate 214 move downward inside the assembly frame 212, and the third transmission plate 215 moves rightward. At this time, the second spring 220 is compressed. Since the transmission shaft 229 where each pull rope transmission assembly is located is rotatably mounted with the third transmission plate 215, and the gear 223 fixed at the end of the transmission shaft 229 is engaged with the rack 222 fixed on the second transmission plate 214, when the third transmission plate 215 moves rightward relative to the first transmission plate 213 and the second transmission plate 214, as shown in FIG. Figure 9, the gear 223 rotates clockwise, thereby driving the first transmission wheel 224 to rotate clockwise. Since one end of the rope body 228 is fixed to the first transmission wheel 224, the other end thereof approaches the junction box body 111 and passes through the two second transmission wheels 226 in sequence and is fixed to the connecting block 227 provided on the assembly seat 211, so that the first transmission wheel 224 is Figure 1 When winding clockwise, the rope body 228 clamps the assembly seat 211 and the assembly plate 221 toward each other to reinforce the junction box body 111 and the lamp pole.

[0047] Example 4

[0048] As another embodiment of the present invention, the locking head structure includes two connecting frames 311 symmetrically mounted in the middle of the assembly seat 211, and an extension plate 312 is fixed to each connecting frame 311, wherein the extension plate 312 extends toward the position of the assembly plate 221 and is installed with a connecting frame 313, and a transmission block 314 is provided in the limiting groove 320 formed by the connecting frame 313 and the end of the extension plate 312; and a screw hole is horizontally opened on the upper part of the transmission block 314, and a screw rod 315 is provided in the screw hole, and a pressure block 317 is fixed to one end of the screw 315, and a nut 316 is fixed to the other end, and the two nuts 316 are relative to each other. setting; also includes a driving structure for driving the two transmission blocks 314 toward and away from the junction box body 111; further, the bottom of the limit groove 320 is arc-shaped; further, the driving structure includes an electric telescopic rod 318 fixed to the inner side of each extension plate 312, and the telescopic end of the electric telescopic rod 318 is fixed with a U-shaped frame 319, wherein the U-shaped frame 319 is rotatably mounted to the lower portion of the transmission block 314 on the same side thereof through a mounting axis provided at its opposite end; further, a pressure sensor is also provided between the side of the second transmission plate 214 away from the first transmission plate 213 and the assembly frame 212.

[0049] Combine Figure 4 、 6 8, the two connecting frames 311 are symmetrically arranged, and the two extension plates 312 fixed to the two connecting frames 311 are respectively extended toward the junction box body 111 and provided with a connecting frame 313, and the connecting frame 313 and its corresponding extension plate 312 form a limiting groove 320 with an arc-shaped bottom surface, as shown in FIG. Figure 8 As shown, the transmission block 314 provided in the limit groove 320 has a U-shaped frame 319 fixed to the telescopic end of the electric telescopic rod 318 at its lower portion and is rotatably mounted via a mounting shaft. Thus, when the two electric telescopic rods 318 are synchronously extended and retracted, as shown Figure 1 、 4 As shown, the two transmission blocks 314 are pulled toward the assembly plate 221 and the two nuts 316 are driven to contact the two sides of the assembly plate 221 close to the junction box body 111, thereby further reinforcing the assembly seat 211 and the assembly plate 221;

[0050] The buckle lock head structure is a three-level protection structure, such as Figure 5 As shown, this is because a pressure sensor is further provided between the side of the second transmission plate 214 away from the first transmission plate 213 and the assembly frame 212. When the junction box body 111 swings and causes the first transmission plate 213 and the second transmission plate 214 to move longitudinally, since the assembly seat 211 is connected to the lamp pole, the first transmission plate 213 and the second transmission plate 214 move relative to the assembly frame 212 and compress the second spring 220. At this time, the pressure sensor is driven at the same time. When the pressure exceeds the preset value of the pressure sensor, the pressure sensor sends a signal to the single-chip microcomputer, which then controls the operation of the two electric telescopic rods 318, so that the buckle lock head structure quickly compensates for the buffering force that the dynamic locking rope structure cannot meet.

[0051] Furthermore, anti-slip layers are respectively provided on opposite sides of the two nuts 316 to improve the contact stability between the two hinge rods 216 and the assembly plate 221 .

[0052] In the present invention, unless otherwise expressly specified or limited, the terms "install," "connect," "connect," "fix," and the like should be understood in a broad sense. For example, they may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. There are various methods for removable installation, such as plug-in and snap-fit ​​connections, or bolt connections.

[0053] The above is a clear and complete description of the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation.

[0054] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A street light cable junction box anti-loosening fixing device, comprising a junction box body (111), an anti-loosening fixing assembly connected to the junction box body (111), and used for assembly with a lamp pole, characterized in that: The anti-loosening fixing assembly comprises an assembly seat (211), and a double-wedge surface dynamic buffer structure provided at the lower portion of the assembly seat (211), which is used for buffering the junction box body (111) under slight vibration. and a dynamic locking rope structure provided on the upper portion of the assembly seat (211), used for secondary protection of the junction box body (111) under wide swinging conditions, to resist loosening caused by vibration; It also includes a buckle lock head structure arranged in the middle of the assembly seat (211). When the secondary protection of the dynamic locking rope structure reaches a limit, the buckle lock head structure quickly intervenes and performs tertiary protection on the junction box body (111).

2. The anti-loosening fixing device for a street light cable junction box according to claim 1, characterized in that: The double-wedge surface dynamic buffer structure comprises an assembly frame (411) transversely fixed to the lower part of the assembly seat (211), two groups of telescopic column structures are longitudinally arranged on the top of the assembly frame (411), each group of telescopic column structures comprises two, each telescopic column structure comprises a through hole opened on the assembly frame (411), a telescopic rod body (412) is arranged in the through hole, wherein a mounting block (413) is fixed to the top of the telescopic rod body (412), and a slope is arranged at the bottom end thereof; and a first spring (414) arranged on the outer wall of the telescopic rod (412) between the mounting block (413) and the assembly frame (411); It also includes a flexible connection portion (415) provided on the top of each of the mounting blocks (413), and a connection plate (419) is connected to the top of several of the flexible connection portions (415), wherein the connection plate (419) is fixed to the lower portion of the assembly seat (211) fixed to the side wall of the junction box body (111); And a wedge transmission assembly arranged on the assembly frame (411) is used for adaptive telescopic extension of the two sets of telescopic column structures.

3. The anti-loosening fixing device for a street light cable junction box according to claim 2, characterized in that: The wedge transmission assembly includes two trapezoidal wedges (416) arranged at the bottom of the assembly frame (411), wherein a transverse groove (417) is opened in the middle of each trapezoidal wedge (416), and wedge surfaces symmetrically arranged at both ends thereof are respectively fitted with the inclined surfaces at the bottom of the two first springs (414); It also includes a limiting member (418) fixed to the bottom of the assembly frame (411), and two ends of the limiting member (418) respectively extend into the two transverse grooves (417) and are slidingly installed with the two transverse grooves (417).

4. The anti-loosening fixing device for a street light cable junction box according to claim 1, characterized in that: The dynamic locking rope structure comprises an assembly frame (212) fixed on the upper part of the assembly seat (211); A first transmission plate (213) and a second transmission plate (214) are respectively mounted on the upper and lower sides of the assembly frame (212) and can slide longitudinally within a limited position, wherein a second spring (220) is connected between the bottom of the second transmission plate (214) and the assembly frame (212), and a side wall of the second transmission plate (214) is fixed to a slider provided in a slide groove (2141) provided on the side wall of the assembly frame (212); the first transmission plate (213) extends out of the assembly frame (212) and is rotatably mounted to a connecting piece (218) provided on the upper portion of the assembly plate (221) via a connecting shaft (219); and a third transmission plate (215) which is positionally mounted between the first transmission plate (213) and the second transmission plate (214) and can slide transversely, wherein the third transmission plate (215) and the first transmission plate (213) are respectively hingedly connected to each other via hinges (217) provided thereon with hinge rods (216); It also includes a pull rope transmission assembly, which is used to tighten the assembly seat (211) and the assembly plate (221) when the junction box body (111) is subjected to a large range of vibrations.

5. The anti-loosening fixing device for a street light cable junction box according to claim 4, characterized in that: Two pull-wire transmission assemblies are symmetrically arranged, each of which includes a transmission shaft (229) rotatably mounted on one side of the third transmission plate (215), one end of the transmission shaft (229) facing outward and respectively fixed with a gear (223) and a first transmission wheel (224); a rack (222) disposed on a side wall of the second transmission plate (214) and meshing with a gear (223); and two mounting seats (225) arranged on the assembly seat (211), each of the mounting seats (225) being rotatably mounted with a second transmission wheel (226) via a rotating shaft; It also includes a rope body (228), wherein one end of the rope body (228) is fixed to the first transmission wheel (224), and the other end of the rope body (228) is passed around two second transmission wheels (226) in sequence and fixed to a connection block (227) provided on the assembly seat (211).

6. The anti-loosening fixing device for a street light cable junction box according to claim 1, characterized in that: The locking head structure comprises two connecting frames (311) symmetrically mounted in the middle of the assembly seat (211), an extension plate (312) being fixed on each connecting frame (311), wherein the extension plate (312) extends toward the position of the assembly plate (221) and is mounted with a connecting frame (313), and a transmission block (314) is provided in a limiting groove (320) formed by the connection frame (313) and the end of the extension plate (312); and a screw hole is transversely provided on the upper portion of the transmission block (314), wherein a screw rod (315) is provided in the screw hole, a pressing block (317) is fixed at one end of the screw rod (315), and a nut (316) is fixed at the other end, and the two nuts (316) are arranged opposite to each other; It also includes a driving structure for driving the two transmission blocks (314) to move closer to and away from the junction box body (111).

7. The anti-loosening fixing device for a street light cable junction box according to claim 6, characterized in that: The bottom of the limiting groove (320) is in an arc shape.

8. The anti-loosening fixing device for a street light cable junction box according to claim 6, characterized in that: The driving structure includes an electric telescopic rod (318) fixed on the inner side of each extension plate (312), and a U-shaped frame (319) is fixed to the telescopic end of the electric telescopic rod (318), wherein the U-shaped frame (319) is rotatably mounted to the lower part of the transmission block (314) on the same side thereof via a mounting shaft provided at the opposite end thereof.

9. The anti-loosening fixing device for a street light cable junction box according to claim 4, characterized in that: A pressure sensor is also provided between the side of the second transmission plate (214) away from the first transmission plate (213) and the assembly frame (212).

10. The anti-loosening fixing device for a street light cable junction box according to claim 6, characterized in that: Opposite sides of the two nuts (316) are respectively provided with anti-slip layers.

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