A local area network communication hub

Abstract

The application relates to the technical field of concentrators and discloses a local area network communication concentrator which comprises a concentrator body, a distance adjusting assembly and a whole line plate assembly, the concentrator body is provided with a plurality of interfaces, the distance adjusting assembly comprises an adjusting seat, a handle, a movable block, a transmission bevel gear A, a transmission bevel gear B, a transmission bevel gear C, a transmission bevel gear D, a transmission rod and a screw rod which are arranged in the adjusting seat, the adjusting seat is fixedly connected to the top of the concentrator body, the handle, the transmission rod and the screw rod are rotationally connected to the adjusting seat, the handle is connected with the transmission bevel gear A, the transmission bevel gear A is engaged with the transmission bevel gear B, the transmission rod is connected with the transmission bevel gear B and the transmission bevel gear C coaxially, the transmission bevel gear C is engaged with the transmission bevel gear D, the transmission bevel gear D is connected with the screw rod coaxially, the movable block is screw-connected to the screw rod, and the movable block is connected with the whole line plate assembly and protrudes from the front side of the concentrator body. The local area network communication concentrator can be whole-lined, dustproof and easily cleaned.

Description

Technical Field

[0001] This invention relates to the field of hub technology, and in particular to a local area network (LAN) communication hub. Background Technology

[0002] A hub is a connection device used in a local area network (LAN). It connects multiple Ethernet twisted-pair cables or fiber optic cables to the same physical medium and is a basic device in a data communication system.

[0003] Hubs typically connect to numerous data cables during use, often resulting in tangled cables that interfere with the hub's operation. To prevent this, some hubs incorporate splitter boards with splitting holes or slots to organize the cables. However, adding splitter boards with slots or holes, or adjusting the distance between the splitter board and the hub, complicates the hub's external structure, making it prone to dust accumulation and difficult to clean, thus affecting its usability. Summary of the Invention

[0004] The purpose of this invention is to provide a dustproof and easy-to-clean local area network (LAN) communication hub to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides a local area network (LAN) communication hub, comprising a hub body and a cable management board assembly connected to the hub body. The hub body has several interfaces on its front side and also includes a distance adjustment assembly. The distance adjustment assembly includes an adjustment base, a handle, a movable block, and transmission bevel gears A, B, C, and D, a transmission rod, and a lead screw disposed within the adjustment base. The adjustment base is fixedly connected to the top of the hub body, and the handle, the transmission rod, and the lead screw are rotatably connected to the adjustment base. The handle is connected to the longitudinally arranged transmission bevel gear A, which meshes with the transmission bevel gear B. The transmission rod is fixedly connected to and coaxially arranged with the transmission bevel gears B and C. The transmission bevel gear C meshes with the transmission bevel gear D. The transmission bevel gear D is fixedly connected to and coaxially arranged with the lead screw. The movable block is threaded to the lead screw. One end of the movable block protrudes from the front side of the hub body and is connected to the cable assembly. The cable assembly has two movable blocks connected to it.

[0006] In some embodiments, the adjusting seat has a first compartment and two second compartments. The first compartment extends along the rear sidewall of the hub body. The two second compartments are spaced apart and perpendicular to the first compartment. The transmission bevel gear A, transmission bevel gear B, transmission bevel gear C, transmission bevel gear D, and transmission rod are all located in the first compartment. The lead screw is located in the second compartment. The first compartment and the second compartment are connected. The second compartment has a first limiting groove on its sidewall along its length. The movable block has a first limiting part that slides in the first limiting groove. One end of the movable block extends out of the second compartment and is connected to the cable assembly.

[0007] In some embodiments, the local area network communication hub further includes a heat dissipation component. The top of the hub body has a first heat dissipation vent. The heat dissipation component includes a heat sink, a cooling fan, and a first dust filter. The heat sink covers the top of the first heat dissipation vent. The cooling fan is located inside the heat sink. The top of the heat sink has a second heat dissipation vent. The first dust filter covers the second heat dissipation vent.

[0008] In some embodiments, the local area network communication hub further includes a cleaning component, which includes a cleaning plate, a driving component, and a collecting component. The driving component is mounted on the top of the hub body and located on one side of the heat sink. The driving component is detachably connected to the cleaning plate and is used to drive the cleaning plate to move along the top of the first dust filter. The collecting component is located on the top of the heat sink on the side opposite to the driving component and is used to collect the dust scraped by the cleaning plate.

[0009] In some embodiments, the driving end of the driving component is connected to a disassembly / removal seat. The disassembly / removal seat has an access slot on the side facing the cleaning plate. The cleaning plate has an access block on the side facing the driving component. The access block cooperates with the access slot. The top surface of the access block has a first slot. The top of the access slot has a first insertion hole that penetrates the top of the disassembly / removal seat and corresponds to the first slot. A rod is inserted into the first insertion hole. A first sliding groove is formed on the side wall of the first insertion hole. A first limiting protrusion is formed on the side wall of the rod. A first spring is provided in the first sliding groove. One end of the first spring is connected to the top groove wall of the first sliding groove, and the other end of the first spring is connected to the first limiting protrusion. The cleaning plate can switch between a locked state and an unlocked state. When the cleaning plate is in the locked state, the rod is inserted into the first slot. When the cleaning plate is in the unlocked state, the rod is dislodged from the first slot.

[0010] In some embodiments, the collection assembly includes a dust collection hood, a conveying pipe, an exhaust fan, and a dust collection box. The dust collection box is installed on the top of the hub body, and a first ventilation opening is provided on the top of the dust collection box. The first ventilation opening is provided with a second dust filter. The exhaust fan is installed on the top of the dust collection box and covers the first ventilation opening. The dust collection hood is installed on the side of the top of the heat sink away from the drive component. The conveying pipe connects the dust collection hood and the dust collection box.

[0011] In some embodiments, a dust collection box is placed inside the dust collection box, and a dust guide section is also provided inside the dust collection box above the dust collection box. The dust guide section is used to guide dust into the dust collection box. A pick-up and drop-off port is provided on the side wall of the dust collection box, and a sealing plug is provided on the pick-up and drop-off port. The sealing plug is used to open or close the pick-up and drop-off port.

[0012] In some embodiments, the local area network communication hub further includes a protective component, which includes a protective base, a protective plate, a second spring, a sliding rod, and a locking pin. The protective base is connected to the hub body and surrounds the outer periphery of the interface. The protective base has second sliding grooves on the left and right sides facing the interface, and a clearance opening on the top of the protective base. The protective plate has second limiting protrusions on the left and right sides, and the second limiting protrusions have through holes. The sliding rod passes through the through holes, and its two ends are respectively connected to the top and bottom walls of the second sliding grooves. The second spring is sleeved on the sliding rod, and one end of the second spring is connected to the top wall of the second sliding groove, while the other end of the second spring is connected to the second limiting protrusion. The protective plate also has a second slot on its left or right side, located below the second limiting protrusion. The protective base has a second insertion hole corresponding to the second slot, and the locking pin passes through the second insertion hole and engages with the second slot.

[0013] In some embodiments, the protective assembly further includes a third spring, a third groove is provided on the side wall of the second insertion hole, the locking pin is provided with a third limiting protrusion, the third limiting protrusion is provided in the third groove, one end of the third spring is connected to the third limiting protrusion, and the other end of the third spring is connected to the side wall of the third groove away from the protective plate.

[0014] In some embodiments, the end of the locking pin near the protective plate has a downwardly inclined boosting surface.

[0015] This invention provides a local area network (LAN) communication hub, which, compared with existing technologies, has the following advantages:

[0016] By setting up a distance adjustment component, the transmission bevel gears A, B, C, and D, the transmission rod, and the lead screw are all located inside the adjustment seat. Turning the handle causes transmission bevel gear A to rotate, which in turn drives transmission bevel gear B, which meshes with transmission bevel gear A, to rotate. The transmission rod and transmission bevel gear C rotate together with transmission bevel gear B, and transmission bevel gear D, which meshes with transmission gear C, is also driven to rotate. This causes the lead screw to rotate. The movable blocks connecting the cable assembly are threaded to the lead screw, and there are two movable blocks. Therefore, the movable blocks are limited and do not rotate with the lead screw but move along the lead screw. The setting of two movable blocks can make the installation of the cable assembly more stable. Thus, this LAN communication hub can adjust the distance between the cable assembly and the hub body for cable alignment, and the adjustment is very convenient, requiring only the turning of the handle. It also keeps the exterior of the hub body from accumulating dust and is easy to clean. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a local area network communication hub according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the distance adjustment component according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the heat dissipation component and the cleaning component according to an embodiment of the present invention;

[0020] Figure 4 yes Figure 3 A magnified view of part A;

[0021] Figure 5 This is a schematic diagram of the front view section of the present invention, excluding the assembly board;

[0022] Figure 6 yes Figure 5 A magnified view of section B;

[0023] In the diagram, 100 is a local area network (LAN) communication hub; 10 is the hub body; 20 is the cable assembly; 21 is the hub board; 211 is the cable conduit slot; 22 is the telescopic rod; 23 is the splitter board; 231 is the splitter hole; 30 is the distance adjustment assembly; 31 is the adjustment seat; 311 is the first split chamber; 312 is the second split chamber; 3121 is the first limiting groove; 32 is the handle; 33 is the movable block; 331 is the first limiting part; 34 is the transmission bevel gear A; 35 is the transmission bevel gear B; 36 is the transmission bevel gear C; 37 is the transmission bevel gear D; 38 is the transmission rod; 39 is the lead screw; 40 is the heat dissipation assembly; 41 is the heat dissipation base; 42 is the cooling fan; 43 is the first dust filter; 50 is the cleaning assembly; 51 is the cleaning plate; 511 is the access block; 5111 is the first slot; 52 is the driving component; 521 is the first slot. 5211. Disassembly / removal base; 5212. Inlet slot; 5213. First insertion hole; 5214. Insertion rod; 5215. First limiting protrusion; 5216. First sliding groove; 5217. First spring; 53. Collection assembly; 531. Dust collection cover; 532. Conveying pipe; 533. Exhaust fan; 534. Dust collection box; 5341. Second dust filter; 5342. Dust collection box; 5343. Dust guide section; 5344, Inlet / Outlet; 5345, Sealing Plug; 60, Protective Component; 61, Protective Seat; 611, Second Slide; 612, Second Insertion Hole; 6121, Third Slide; 62, Protective Plate; 621, Second Limiting Protrusion; 622, Second Slot; 63, Second Spring; 64, Slide Rod; 65, Locking Pin; 651, Third Limiting Protrusion; 652, Boosting Surface; 66, Third Spring. Detailed Implementation

[0024] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0025] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0026] Furthermore, the terms "first" and "second" 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. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0027] like Figure 1 and Figure 2As shown, a preferred embodiment of the present invention provides a local area network (LAN) communication hub 100, including a hub body 10 and a cable management board assembly 20 connected to the hub body 10. The hub body 10 has several interfaces on its front side and also includes a distance adjustment assembly 30. The distance adjustment assembly 30 includes an adjustment base 31, a handle 32, a movable block 33, and transmission bevel gears A34, B35, C36, and D37, a transmission rod 38, and a lead screw 39 disposed within the adjustment base 31. The adjustment base 31 is fixedly connected to the top of the hub body 10, and the handle 32, transmission rod 38, and lead screw 39 are rotatably connected to the adjustment base 31. 32. The transmission rod 38 and the lead screw 39 are preferably rotatably connected to the adjusting seat 31 via bearings. The handle 32 is connected to the transmission bevel gear A34, which is arranged longitudinally along the rotating shaft. The transmission bevel gear A34 meshes with the transmission bevel gear B35. The transmission rod 38 is fixedly connected to the transmission bevel gear B35 and the transmission bevel gear C36 and is arranged coaxially. The transmission bevel gear C36 meshes with the transmission bevel gear D37. The transmission bevel gear D37 is fixedly connected to the lead screw 39 and is arranged coaxially. The movable block 33 is threaded to the lead screw 39. One end of the movable block 33 protrudes from the front side of the hub body 10 and is connected to the cable assembly 20. The cable assembly 20 is connected to two movable blocks 33.

[0028] Based on the above embodiment, the local area network communication hub 100, by setting a distance adjustment component 30, has its transmission bevel gear A34, transmission bevel gear B35, transmission bevel gear C36, transmission bevel gear D37, transmission rod 38, and lead screw 39 all located inside the adjustment seat 31. Turning the handle 32 can cause the transmission bevel gear A34 to rotate, thereby driving the transmission bevel gear B35, which meshes with the transmission bevel gear A34, to rotate. The transmission rod 38 and transmission bevel gear C36 rotate together with the transmission bevel gear B35, and the transmission bevel gear D37, which meshes with the transmission gear C36, also rotates. The rotation of the screw 39 causes the lead screw to rotate. The movable block 33 connected to the cable assembly 20 is threadedly connected to the lead screw 39. There are two movable blocks 33, so the movable block 33 is limited and does not rotate with the lead screw 39 but moves along the lead screw 39. The two movable blocks 33 make the installation of the cable assembly 20 more stable. Thus, the local area network communication hub 100 can adjust the distance between the cable assembly 20 and the hub body 10 for cable management. The adjustment is very convenient, requiring only the rotation of the handle 32. It also keeps the exterior of the hub body 10 from accumulating dust and is easy to clean.

[0029] Preferably, the adjusting seat 31 is provided with a first sub-cavity 311 and two second sub-cavities 312. The first sub-cavity 311 extends along the rear side wall of the hub body 10. The two second sub-cavities 312 are spaced apart and are perpendicular to the first sub-cavity 311. The transmission bevel gear A34, transmission bevel gear B35, transmission bevel gear C36, transmission bevel gear D37 and transmission rod 38 are all provided in the first sub-cavity 311. The lead screw 39 is provided in the second sub-cavities 312. The first sub-cavity 311 and the second sub-cavities 312 are connected. The second sub-cavity 312 has a first limiting groove 3121 on its side wall along its length direction. The movable block 33 is provided with a first limiting part 331. The first limiting part 331 slides in the first limiting groove 3121. One end of the movable block 33 extends out of the second sub-cavity 312 and is connected to the cable assembly 20. By setting a first limiting groove 3121 and a first limiting part 331 that cooperates with the first limiting groove 3121 on the movable block 33, the movement range of the movable block 33 can be limited to prevent it from falling out of the adjusting seat 31.

[0030] like Figure 3 and Figure 4 As shown, preferably, the local area network communication hub 100 further includes a heat dissipation component 40. A first heat dissipation vent is provided on the top of the hub body 10. The heat dissipation component 40 includes a heat sink 41, a cooling fan 42, and a first dust filter 43. The cooling fan 42 is preferably model A2175-HBLT.GN. The heat sink 41 covers the top of the first heat dissipation vent, and the cooling fan 42 is located inside the heat sink 41. A second heat dissipation vent is provided on the top of the heat sink 41, and the first dust filter 43 covers the second heat dissipation vent. By providing the cooling fan 42 and the first and second heat dissipation vents, heat dissipation can be achieved for the hub body 10. The first dust filter 43 at the second heat dissipation vent prevents dust from falling into the hub body 10 from the second heat dissipation vent.

[0031] In some preferred embodiments, the local area network communication hub 100 further includes a cleaning component 50, which includes a cleaning plate 51, a driving element 52, and a collecting component 53. The driving element 52 is preferably an electric cylinder or a pneumatic cylinder. The driving element 52 is mounted on the top of the hub body 10 and located on one side of the heat sink 41. The driving element 52 is detachably connected to the cleaning plate 51 and is used to drive the cleaning plate 51 to move along the top of the first dust filter 43. The collecting component 53 is located on the top of the heat sink 41 away from the driving element 52 and is used to collect the dust scraped by the cleaning plate 51. The dust blocked by the first dust filter 43 will accumulate on its top. Removing the first dust filter 43 will cause the dust to be easily shaken off and enter the hub body 10. The cleaning plate 51 of the present invention can scrape the dust accumulated on the top of the first dust filter 43 under the drive of the driving element 52 and collect the dust under the operation of the collecting component 53. The cleaning plate 51 can be removed from the driving element 52 for cleaning or replacement after multiple uses.

[0032] Preferably, the driving end of the driving component 52 is connected to a disassembly base 521. The disassembly base 521 has an access groove 5211 on the side facing the cleaning plate 51. The cleaning plate 51 has an access block 511 on the side facing the driving component 52. The access block 511 cooperates with the access groove 5211. The top surface of the access block 511 has a first slot 5111. The top of the access groove 5211 has a first insertion hole 5212 that penetrates the top of the disassembly base 521 and corresponds to the first slot 5111. A insertion rod 5213 is inserted into the first insertion hole 5212. The side wall of the first insertion hole 5212 is... The device is provided with a first sliding groove 5214, and a first limiting protrusion 52131 on the side wall of the insertion rod 5213. A first spring 5215 is provided in the first sliding groove 5214. One end of the first spring 5215 is connected to the top wall of the first sliding groove 5214, and the other end of the first spring 5215 is connected to the first limiting protrusion 52131. The cleaning plate 51 can switch between a locked state and an unlocked state. When the cleaning plate 51 is in the locked state, the insertion rod 5213 is inserted into the first slot 5111. When the cleaning plate 51 is in the unlocked state, the insertion rod 5213 is dislodged from the first slot 5111. By setting a first spring 5215 to connect the insertion rod 5213 and the mounting / removing seat 521, pulling the insertion rod 5213 upwards can dislodge it from the first slot 5111 of the cleaning plate 51, allowing the cleaning plate 51 to be removed. When the insertion rod 5213 is released, it will automatically return to its original position within the first slot 5111 of the cleaning plate 51 under the action of the first spring 5215, thus locking the cleaning plate 51.

[0033] Preferably, the collection component 53 includes a dust collection hood 531, a conveying pipe 532, an exhaust fan 533, and a dust collection box 534. The exhaust fan 533 is preferably a YDK139 model. The dust collection box 534 is installed on the top of the hub body 10, with a first ventilation opening on the top and a second dust filter 5341 installed thereon. The exhaust fan 533 is installed on top of the dust collection box 534 and covers the first ventilation opening. The dust collection hood 531 is installed on the top of the heat sink 41 on the side opposite to the drive component 52. The conveying pipe 532 connects the dust collection hood 531 and the dust collection box 534. The exhaust fan 533 can suck up dust, and the dust collection hood 531 facilitates the collection of dust scraped by the cleaning plate 51 into the conveying pipe 532, ultimately falling into the dust collection box 534.

[0034] As an improvement to this solution, a dust collection box 5342 is placed inside the dust collection box 5344. The dust collection box 5344 also has a dust guiding section 5343 located above the dust collection box 5342. The dust guiding section 5343 is inclined towards the top opening of the dust collection box 5342 and is used to guide dust into the dust collection box 5342. A retrieval opening 5344 is provided on the side wall of the dust collection box 5344, and a sealing plug 5345 is provided on the retrieval opening 5344. The sealing plug 5345 is used to open or close the retrieval opening 5344. By further placing the dust collection box 5342 inside the dust collection box 5344 and providing the retrieval opening 5344 on the side wall of the dust collection box 5344, the sealing plug 5345 can be opened periodically to remove the dust collection box 5342 and discharge the dust.

[0035] like Figure 5 and Figure 6 As shown, preferably, the local area network communication hub 100 further includes a protective component 60. The protective component 60 includes a protective base 61, a protective plate 62, a second spring 63, a slide rod 64, and a locking pin 65. The protective base 61 is connected to the hub body 10 and surrounds the outer periphery of the interface. The protective base 61 has second sliding grooves 611 on the left and right sides facing the interface, and a clearance opening on the top of the protective base 61. The protective plate 62 has second limiting protrusions 621 on the left and right sides, and the second limiting protrusions 621 have through holes. The slide rod 64 passes through the through holes and the slide rod 65... The two ends of 4 are respectively connected to the top and bottom walls of the second slide groove 611. The second spring 63 is sleeved on the slide rod 64 and one end of the second spring 63 is connected to the top wall of the second slide groove 611. The other end of the second spring 63 is connected to the second limiting protrusion 621. The left or right side of the protective plate 62 is also provided with a second slot 622. The second slot 622 is located below the second limiting protrusion 621. The protective seat 61 is provided with a second insertion hole 612 corresponding to the second slot 622. The locking pin 65 passes through the second insertion hole 612 and cooperates with the second slot 622. By setting up the protective component 60, the interface can be protected to prevent dust and moisture from entering the interface and affecting the plug-in cable. The protective base 61 has a clearance opening at the top, through which the protective plate 62 passes. When the interface needs to be used, pull the locking pin 65, and the second spring 63 will drive the protective plate 62 to move upward to open the interface. When the interface needs to be closed, simply press the top of the protective plate 62 downward from above the clearance opening to close the interface again. At this time, the locking pin 65 is reinserted into the second slot 622 to lock the protective plate 62.

[0036] As an improvement to this solution, the protective component 60 also includes a third spring 66. A third groove 6121 is provided on the side wall of the second insertion hole 612. The locking pin 65 has a third limiting protrusion 651, which is located within the third groove 6121. One end of the third spring 66 is connected to the third limiting protrusion 651, and the other end is connected to the side wall of the third groove 6121 facing away from the protective plate 62. By providing the third spring 66 to the locking pin 65, when the locking pin 65 is released, the third spring 66 can automatically reset the locking pin 65, causing it to insert into the second slot 622. Furthermore, without external force, the locking pin 65 can always lock the protective plate 62 securely.

[0037] As an improvement to this solution, the end of the locking pin 65 near the protective plate 62 is provided with a downwardly inclined push surface 652, which can further simplify the steps of closing the interface of the protective plate 62. When the finger presses down on the protective plate 62, it is not necessary to first pull open the locking pin 65 to make way for the protective plate 62, and then release the locking pin 65 after the protective plate 62 is fully pushed to the bottom of the protective seat 61. Instead, when the protective plate 62 is pressed down, its bottom exerts pressure on the push surface 652, so that the locking pin 65 is automatically pushed open to make way for the protective plate 62 to close the interface.

[0038] The cable management board assembly 20 of the present invention includes a cable management board 21, a telescopic rod 22, and a cable distribution board 23. A movable block 33 is connected to the cable management board 21. The cable management board 21 has a cable consolidation slot 211. The telescopic rod 22 is connected to the side of the cable management board 21 away from the movable block 33. The end of the telescopic rod 22 away from the cable management board 21 is connected to the cable distribution board 23. The cable distribution board 23 has a cable distribution hole 231. The cable management board 21 can organize and concentrate cables, and the cable distribution hole 231 of the cable distribution board 23 can disperse cables. The telescopic rod 22 can adjust the distance between the cable management board 21 and the cable distribution board 23. In use, the protective plate 62 of the protective component 60 is opened, and the distance adjustment component 30 is used to move the cable management board assembly 20 to a suitable distance from the cable management board 21. Then, the wiring is inserted into each interface, and the wires connected to each interface are passed through the corresponding cable consolidation slot 211 for consolidation, and then through the corresponding cable distribution hole 231 to disperse the data lines and prevent them from tangling.

[0039] In summary, the embodiments of the present invention provide a local area network communication hub, which can conveniently organize cables to avoid tangled cables while keeping them from accumulating dust and easy to clean. It is equipped with a heat dissipation component for heat dissipation and a cleaning component to clean the dust on the top of the hub body in a timely manner. It also has a protective component for the interface to prevent the interface from being contaminated by dust and moisture and affecting the use of the hub body.

[0040] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A local area network (LAN) communication hub, comprising a hub body and a cable management board assembly connected to the hub body, wherein the front side of the hub body has a plurality of interfaces, characterized in that, It also includes a distance adjustment assembly, which includes an adjustment seat, a handle, a movable block, and transmission bevel gears A, B, C, and D, a transmission rod, and a lead screw disposed within the adjustment seat. The adjustment seat is fixedly connected to the top of the hub body. The handle, the transmission rod, and the lead screw are rotatably connected to the adjustment seat. The handle is connected to the transmission bevel gear A, which is arranged longitudinally along the rotating shaft. The transmission bevel gear A meshes with the transmission bevel gear B. The transmission rod is fixedly connected to and coaxially arranged with the transmission bevel gears B and C. The transmission bevel gear C meshes with the transmission bevel gear D. The transmission bevel gear D is fixedly connected to and coaxially arranged with the lead screw. The movable block is threadedly connected to the lead screw. One end of the movable block protrudes from the front side of the hub body and is connected to the cable consolidation plate assembly. The cable consolidation plate assembly is connected to two movable blocks. It also includes a cleaning component, which comprises a cleaning plate and a driving component. The driving component is mounted on the top of the hub body and is detachably connected to the cleaning plate, driving the cleaning plate to move along the top of the first dust filter. A disassembly / assembly base is connected to the driving end of the driving component. The disassembly / assembly base has an access slot on the side facing the cleaning plate, and an access block on the side facing the driving component. The access block mates with the access slot, and a first slot is formed on the top surface of the access block. A through-hole is formed at the top of the access slot, penetrating the top of the disassembly / assembly base. The first slot has a corresponding first insertion hole, into which a rod is inserted. The side wall of the first insertion hole has a first sliding groove, and the side wall of the rod has a first limiting protrusion. The first sliding groove contains a first spring, one end of which is connected to the top wall of the first sliding groove, and the other end of which is connected to the first limiting protrusion. The cleaning plate can switch between a locked state and an unlocked state. When the cleaning plate is in the locked state, the rod is inserted into the first slot. When the cleaning plate is in the unlocked state, the rod is dislodged from the first slot.

2. The local area network communication hub according to claim 1, characterized in that, The adjusting seat has a first compartment and two second compartments. The first compartment extends along the rear side wall of the hub body. The two second compartments are spaced apart and perpendicular to the first compartment. The transmission bevel gear A, transmission bevel gear B, transmission bevel gear C, transmission bevel gear D and the transmission rod are all located in the first compartment. The lead screw is located in the second compartment. The first compartment and the second compartment are connected. The second compartment has a first limiting groove on its side wall along its length direction. The movable block has a first limiting part. The first limiting part slides in the first limiting groove. One end of the movable block extends out of the second compartment and is connected to the cable assembly.

3. The local area network communication hub according to claim 1, characterized in that, It also includes a heat dissipation component. The top of the hub body has a first heat dissipation vent. The heat dissipation component includes a heat sink, a cooling fan, and a first dust filter. The heat sink covers the top of the first heat dissipation vent. The cooling fan is located inside the heat sink. The top of the heat sink has a second heat dissipation vent. The first dust filter covers the second heat dissipation vent.

4. The local area network communication hub according to claim 3, characterized in that, The cleaning assembly also includes a collection component. The drive unit is located on one side of the heat sink, and the collection component is located on the top of the heat sink on the side opposite to the drive unit. The collection component is used to collect the dust scraped by the cleaning plate.

5. The local area network communication hub according to claim 4, characterized in that, The collection assembly includes a dust collection hood, a conveying pipe, an exhaust fan, and a dust collection box. The dust collection box is installed on the top of the hub body. The top of the dust collection box has a first ventilation opening, and the first ventilation opening is provided with a second dust filter. The exhaust fan is installed on the top of the dust collection box and covers the first ventilation opening. The dust collection hood is installed on the top of the heat sink on the side opposite to the drive component. The conveying pipe connects the dust collection hood and the dust collection box.

6. The local area network communication hub according to claim 5, characterized in that, The dust collection box contains a dust collection box, and the dust collection box also has a dust guide section located above the dust collection box. The dust guide section is used to guide dust into the dust collection box. The side wall of the dust collection box has a pick-up and drop-out opening, and the pick-up and drop-out opening is equipped with a sealing plug. The sealing plug is used to open or close the pick-up and drop-out opening.

7. The local area network communication hub according to claim 1, characterized in that, It also includes a protective assembly, which includes a protective base, a protective plate, a second spring, a sliding rod, and a locking pin. The protective base is connected to the hub body and is arranged around the outer periphery of the interface. The protective base has a second sliding groove on both the left and right sides facing the interface, and a clearance opening on the top of the protective base. The protective plate has a second limiting protrusion on both the left and right sides, and the second limiting protrusion has a through hole. The sliding rod passes through the through hole, and its two ends are respectively connected to the top and bottom walls of the second sliding groove. The second spring is sleeved on the sliding rod, and one end of the second spring is connected to the top wall of the second sliding groove, while the other end of the second spring is connected to the second limiting protrusion. The protective plate also has a second slot on its left or right side, which is located below the second limiting protrusion. The protective base has a second insertion hole corresponding to the second slot, and the locking pin passes through the second insertion hole and engages with the second slot.

8. The local area network communication hub according to claim 7, characterized in that, The protective assembly also includes a third spring, a third sliding groove is provided on the side wall of the second insertion hole, the locking pin is provided with a third limiting protrusion, the third limiting protrusion is provided in the third sliding groove, one end of the third spring is connected to the third limiting protrusion, and the other end of the third spring is connected to the side wall of the third sliding groove away from the protective plate.

9. The local area network communication hub according to claim 8, characterized in that, The locking pin has a downwardly inclined boosting surface at one end near the protective plate.

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