Long linear overhead municipal utility cable entry ground fixture and method

Abstract

This invention discloses a structure and method for fixing long-line overhead cables used in municipal public facilities for underground transmission. The structure includes a cable well, with a cable tunnel connected to the right side wall of the well. A foundation pile is connected to the bottom of the inner cavity of the cable well, and a cover is connected to the upper end of the well. A through hole is formed in the center of the cover, and a cable rod is inserted into the through hole. The lower end of the cable rod is fixed to the foundation pile. Four crossbars are circumferentially connected to the top of the cable rod, and multiple access components are installed on the top of the crossbars. Multiple guide holes are formed on the top of the cover, located below the access components. This invention features a reasonable structural design, effectively protecting overhead cables during underground transmission, facilitating personnel access to the cable well for installation and maintenance, and ensuring the cable bundle is effectively and reliably fixed within the clamping opening.

Description

Technical Field

[0001] This invention relates to the field of cable fixing technology, and in particular to a structure and method for fixing long-line overhead cables for municipal public facilities to be transmitted to the ground. Background Technology

[0002] In power transmission, there are overhead cable transmission and underground cable laying methods. When the overhead method is changed to underground laying according to project needs, the overhead cable needs to be buried underground. Currently, cables are mainly connected to cable tunnels by directly burying them underground. However, increasing operation and maintenance experience shows that directly burying cables underground has many risks, such as poor protection, susceptibility to damage from nearby construction activities, and inconvenience in maintenance. Therefore, we propose a fixed structure for the underground transmission of long-line overhead cables for municipal public facilities. Summary of the Invention

[0003] The purpose of this invention is to provide a fixed structure and implementation method for the input of long-line municipal public facilities overhead cables to the ground, so as to overcome the technical problems existing in the prior art.

[0004] To achieve the above-mentioned technical objectives and effects, the present invention provides the following technical solution:

[0005] A fixed structure for the underground transmission of long-line municipal public facilities overhead cables includes a cable well, a cable tunnel connected to the right side wall of the cable well, a foundation pile connected to the bottom of the inner cavity of the cable well, a cover connected to the upper end of the cable well, a through hole in the middle of the cover, a cable rod inserted into the through hole, a foundation pile fixed to the lower end of the cable rod, four crossbars circumferentially connected to the top of the cable rod, multiple access components installed on the top of the crossbars, and multiple guide holes located below the access components on the top of the cover.

[0006] Preferably, in a long-line municipal public facility overhead cable transmission grounding fixing structure, the access component includes a short shaft, the lower end of which is rotatably connected to a crossbar via a bearing, the upper end of which is connected to a fixing plate, the upper part of which has a guide groove, a screw rotatably connected within the guide groove, a knob connected to the upper end of which, a nut seat screwed onto the outer wall of which, an access wheel rotatably connected to the outer wall of which, and a support wheel rotatably connected to the lower part of the fixing plate, with the access wheel located directly above the support wheel. Both the access wheel and the support wheel have wheel grooves on their outer walls.

[0007] Preferably, in a long-line municipal public facility overhead cable transmission grounding fixing structure, rectangular rods are connected around the outer wall of the foundation pile. The rectangular rods are located directly below the guide holes. A sliding sleeve is movably fitted on the outer wall of the rectangular rod. A positioning bolt is screwed to the top of the sliding sleeve. Multiple positioning holes are equally spaced on the top of the rectangular rod. Two converging arc strips are hinged to the ends of the rectangular rod. A traction rod is hinged between the converging arc strips and the outer wall of the sliding sleeve.

[0008] Preferably, in a long-line municipal public facility overhead cable transmission grounding fixing structure, the right end of the foundation pile is connected to an inner insert rod, the end of the inner insert rod is connected to a first fan blade, a hollow tube is sleeved on the outside of the inner insert rod, a sealed bearing is installed between the inner insert rod and the hollow tube, a second fan blade is connected to the right side of the outer wall of the hollow tube, a matching clamping port is opened between the first fan blade and the second fan blade, a bevel gear ring is connected to the left side of the outer wall of the hollow tube, a motor is connected to the right side wall of the foundation pile, a bevel gear is connected to the bottom output end of the motor, and the bevel gear meshes with the bevel gear ring.

[0009] Preferably, in a long-line municipal public facility overhead cable transmission and grounding fixing structure, the cable tunnel and the inner insertion rod are arranged coaxially, the two rectangular rods on the left and right are symmetrically arranged about the axis of the inner insertion rod, the straight-line distance between the two rectangular rods above and below and the axis of the inner insertion rod is equal, and a cable passage is opened in the foundation pile, the cable passage being at the same height as the lower clamping opening.

[0010] Preferably, in a long-line municipal public facility overhead cable transmission and grounding fixing structure, the top of the cover is provided with an inspection port, and the inner wall of the cable well is connected to a ladder, a storage battery and a control switch. The ladder is located below the inspection port, and the control switch is electrically connected to a motor and a storage battery.

[0011] Preferably, in a long-line municipal public facility overhead cable transmission and grounding fixing structure, a reinforcing rib is welded between the cable pole and the top wall of the cover, and the reinforcing rib is positioned offset from the guide hole.

[0012] Preferably, in a long-line municipal public facility overhead cable transmission and grounding fixing structure, the two converging arc strips have a gap reserved along the height direction.

[0013] A method for implementing a fixed structure for the input of long-line overhead cables for municipal public facilities includes the following steps:

[0014] The cable passes through the crossbar access assembly. The fixing plate can deflect with the short axis. The cable rod is connected with four crossbars along the circumference, which can connect cables in different directions. The cable passes between two wheel grooves. The screw is rotated by the knob. The nut seat can move down along the guide groove. The gap between the access wheel and the support wheel is reduced, which limits the cable and prevents it from getting off.

[0015] The cable extends into the cable well along the guide hole. An inspection port is set on the cover to facilitate the operation of personnel to enter the cable well for installation and maintenance. Reinforcing ribs are welded between the cable pole and the cover.

[0016] The cable extending along the guide hole is incorporated into the coiling arc strips in different directions. The sliding sleeve can move along the rectangular rod. One end of the traction rod moves with the rectangular rod, and the other end drives the coiling arc strips to deflect. The two coiling arc strips have a gap reserved along the height direction to incorporate the cable into the coiling range and tighten it.

[0017] The rotating positioning bolts fix the position of the sliding sleeve. The gathered cable bundle passes through the clamping port. The left cable bundle first passes through the preset cable passage port. The motor drives the bevel gear to rotate. The bevel gear meshes with the bevel gear ring. The hollow tube rotates outside the inner insert rod. The second fan blade can deflect relative to the first fan blade, thereby effectively fixing the cable bundle in the clamping port.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The present invention has a reasonable structural design. Through the setting of cable wells and cable tunnels, it can effectively protect the overhead cable when it is transferred to underground laying and transmission. The cable pole is connected with four crossbars along the circumference, which can connect cables in different directions. The distance between the connecting wheel and the support wheel is adjustable, which can put the cable into the wheel groove for limiting and preventing it from falling off. The cable extends into the cable well along the guide hole. By setting an inspection port on the cover, it is convenient for operators to enter the cable well for installation and maintenance.

[0020] 2. In this invention, the relative position of the sliding sleeve and the rectangular rod is adjustable. The traction rod drives the retracting arc strip to deflect, which can bring the cable into the retracting range and tighten it. After the cable bundle is retracted, it passes through the clamping port. The left side uses bevel gear meshing to drive the bevel gear ring, so that the hollow tube rotates outside the inner rod. The second fan blade can deflect relative to the first fan blade, which makes it easy to effectively fix the cable bundle in the clamping port, which is stable and reliable. Attached Figure Description

[0021] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the cap structure in this invention;

[0025] Figure 4 This is a schematic diagram of the access component in this invention;

[0026] Figure 5 This is a top view of the foundation pile structure in this invention;

[0027] Figure 6 This is a schematic diagram of the structure of the converging arc strip in this invention;

[0028] Figure 7 for Figure 2 A magnified view of a portion of point A in the middle;

[0029] Figure 8 This is a side view of the first fan blade in this invention.

[0030] Figure 9 This is a side view of the second blade in this invention.

[0031] In the diagram: 1. Cable well; 2. Cable tunnel; 3. Foundation pile; 4. Cover; 5. Through hole; 6. Cable pole; 7. Crossbar; 8. Connection assembly; 9. Guide hole; 11. Ladder; 12. Battery; 13. Control switch; 41. Inspection port; 61. Reinforcing rib; 81. Short shaft; 82. Fixing plate; 83. Guide groove; 84. Screw; 85. Knob; 86. Nut seat; 87. Connection wheel; 88. Support wheel; 301. Rectangular rod; 302. Sliding sleeve; 303. Positioning bolt; 304. Positioning hole; 305. Converging arc strip; 306. Traction rod; 307. Cable passage; 311. Inner insertion rod; 312. First fan blade; 313. Hollow tube; 314. Sealed bearing; 315. Second fan blade; 316. Clamping port; 317. Bevel gear ring; 318. Motor; 319. Bevel gear. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] Please see Figure 1-9As shown, this embodiment is a fixed structure for the transmission of long-line municipal public facilities overhead cables to the ground, including a cable well 1. The right side wall of the cable well 1 is connected to a cable tunnel 2. The bottom of the inner cavity of the cable well 1 is connected to a foundation pile 3. The upper end of the cable well 1 is connected to a cover 4. A through hole 5 is opened in the middle of the cover 4. A cable rod 6 is inserted into the through hole 5. The lower end of the cable rod 6 is fixed to the foundation pile 3. Four crossbars 7 are circumferentially connected to the top of the cable rod 6. Multiple access components 8 are installed on the top of the crossbars 7. Multiple guide holes 9 are opened on the top of the cover 4. The guide holes 9 are located below the access components 8.

[0035] The access component 8 includes a short shaft 81, the lower end of which is rotatably connected to a crossbar 7 via a bearing. The upper end of the short shaft 81 is connected to a fixing plate 82. A guide groove 83 is provided on the upper part of the fixing plate 82. A screw 84 is rotatably connected in the guide groove 83. A knob 85 is connected to the upper end of the screw 84. A nut seat 86 is screwed onto the outer wall of the screw 84. An access wheel 87 is rotatably connected to the outer wall of the nut seat 86. A support wheel 88 is rotatably connected to the lower part of the fixing plate 82. The access wheel 87 is located directly above the support wheel 88. Both the access wheel 87 and the support wheel 88 have wheel grooves on their outer walls.

[0036] The top of the cover 4 has an inspection port 41. The inner wall of the cable well 1 is connected to a ladder 11, a battery 12 and a control switch 13. The ladder 11 is located below the inspection port 41. The control switch 13 is electrically connected to the motor 318 and the battery 12.

[0037] A reinforcing rib 61 is welded between the cable rod 6 and the top wall of the cover 4, and the reinforcing rib 61 is positioned offset from the guide hole 9.

[0038] The specific implementation method of this embodiment is as follows:

[0039] In this embodiment, when the overhead cable is transferred to underground laying for transmission, the cable passes through the access component 8 of the crossbar 7. The fixing plate 82 can deflect with the short axis 81. The cable pole 6 is connected with four crossbars 7 along the circumference, which can access cables in different directions. The cable passes between two wheel grooves. The screw 84 is rotated by the knob 85. The nut seat 86 can move down along the guide groove 83. The gap between the access wheel 87 and the support wheel 88 is reduced, thereby limiting the cable and preventing it from falling off. The cable extends into the cable well 1 along the guide hole 9. By setting an inspection port 41 on the cover 4, it is convenient for operators to enter the cable well 1 for installation and maintenance. The cable pole 6 and the cover 4 are welded together by the reinforcing ribs 61, which can prevent the cable pole 6 from tilting and further improve the stability of the structure.

[0040] Example 2

[0041] Based on Embodiment 1, a rectangular rod 301 is connected around the outer wall of the foundation pile 3. The rectangular rod 301 is located directly below the guide hole 9. A sliding sleeve 302 is movably fitted on the outer wall of the rectangular rod 301. A positioning bolt 303 is screwed to the top of the sliding sleeve 302. Multiple positioning holes 304 are equally spaced on the top of the rectangular rod 301. Two converging arc strips 305 are hinged to the ends of the rectangular rod 301. A traction rod 306 is hinged between the converging arc strips 305 and the outer wall of the sliding sleeve 302.

[0042] An inner rod 311 is connected to the right end of the foundation pile 3. A first fan blade 312 is connected to the end of the inner rod 311. A hollow tube 313 is sleeved on the outside of the inner rod 311. A sealed bearing 314 is installed between the inner rod 311 and the hollow tube 313. A second fan blade 315 is connected to the right side of the outer wall of the hollow tube 313. A clamping port 316 is provided between the first fan blade 312 and the second fan blade 315. A bevel gear ring 317 is connected to the left side of the outer wall of the hollow tube 313. A motor 318 is connected to the right side wall of the foundation pile 3. A bevel gear 319 is connected to the bottom output end of the motor 318. The bevel gear 319 meshes with the bevel gear ring 317.

[0043] The cable tunnel 2 and the inner insertion rod 311 are arranged on the same axis. The two rectangular rods 301 on the left and right are symmetrically arranged about the axis of the inner insertion rod 311. The straight-line distance between the two rectangular rods 301 and the axis of the inner insertion rod 311 is equal. A cable passage 307 is opened in the foundation pile 3. The cable passage 307 is at the same height as the lower clamping opening 316.

[0044] The two retractable arc strips 305 have a gap along the height direction to facilitate adjustment of the retractable range.

[0045] The specific implementation method of this embodiment is as follows:

[0046] In this embodiment, the cable extending along the guide hole 9 is incorporated into the coiling arc strips 305 at different positions. The sliding sleeve 302 can move along the rectangular rod 301. One end of the traction rod 306 moves with the rectangular rod 301, and the other end drives the coiling arc strip 305 to deflect. The two coiling arc strips 305 have a gap reserved along the height direction, which can incorporate the cable into the coiling range and tighten it. The rotating positioning bolt 303 fixes the position of the sliding sleeve 302. The coiled cable bundle is passed through the clamping port 316. The left cable bundle first passes through the preset cable passage port 307. The motor 318 drives the bevel gear 319 to rotate. The bevel gear 319 meshes with the transmission bevel gear ring 317, so that the hollow tube 313 rotates outside the inner insertion rod 311. The second fan blade 315 can deflect relative to the first fan blade 312, thereby effectively fixing the cable bundle in the clamping port 316, which is stable and reliable.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A long linear overhead municipal utility cable entry ground fixation structure comprising a cable well (1), characterized in that: The right side wall of the cable well (1) is connected to a cable tunnel (2). The bottom of the inner cavity of the cable well (1) is connected to a foundation pile (3). The upper end of the cable well (1) is connected to a cover (4). A through hole (5) is opened in the middle of the cover (4). A cable rod (6) is inserted into the through hole (5). The lower end of the cable rod (6) is fixed to the foundation pile (3). Four crossbars (7) are connected to the top of the cable rod (6). Multiple access components (8) are installed on the top of the crossbars (7). Multiple guide holes (9) are opened on the top of the cover (4). The guide holes (9) are located below the access components (8). The access component (8) includes a short shaft (81), the lower end of which is rotatably connected to a crossbar (7) via a bearing, and the upper end of which is connected to a fixing plate (82). The upper part of the fixing plate (82) is provided with a guide groove (83), and a screw (84) is rotatably connected in the guide groove (83). The upper end of the screw (84) is connected to a knob (85), and a nut seat (86) is screwed onto the outer wall of the screw (84). An access wheel (87) is rotatably connected to the outer wall of the nut seat (86), and a support wheel (88) is rotatably connected to the lower part of the fixing plate (82). The access wheel (87) is located directly above the support wheel (88), and both the access wheel (87) and the support wheel (88) have wheel grooves on their outer walls. The outer wall of the foundation pile (3) is connected with a rectangular rod (301). The rectangular rod (301) is located directly below the guide hole (9). The outer wall of the rectangular rod (301) is movably fitted with a sliding sleeve (302). The top of the sliding sleeve (302) is screwed with a positioning bolt (303). The top of the rectangular rod (301) is provided with multiple positioning holes (304) at equal intervals. The end of the rectangular rod (301) is hinged with two converging arc strips (305). A traction rod (306) is hinged between the converging arc strips (305) and the outer wall of the sliding sleeve (302). The right end of the foundation pile (3) is connected to an inner rod (311), the end of the inner rod (311) is connected to a first fan blade (312), a hollow tube (313) is sleeved on the outside of the inner rod (311), a sealed bearing (314) is installed between the inner rod (311) and the hollow tube (313), a second fan blade (315) is connected to the right side of the outer wall of the hollow tube (313), a matching clamping port (316) is opened between the first fan blade (312) and the second fan blade (315), a bevel gear ring (317) is connected to the left side of the outer wall of the hollow tube (313), a motor (318) is connected to the right side wall of the foundation pile (3), a bevel gear (319) is connected to the bottom output end of the motor (318), and the bevel gear (319) meshes with the bevel gear ring (317). The cable tunnel (2) and the inner insertion rod (311) are arranged on the same axis. The two rectangular rods (301) on the left and right are symmetrically arranged about the axis of the inner insertion rod (311). The straight distance between the two rectangular rods (301) and the axis of the inner insertion rod (311) is equal. A cable passage (307) is opened in the foundation pile (3). The cable passage (307) is at the same height as the lower clamping opening (316).

2. A long linear overhead municipal utility cable entry ground fixation structure according to claim 1, wherein: The top of the cover (4) is provided with an inspection port (41). The inner wall of the cable well (1) is connected to a ladder (11), a battery (12) and a control switch (13). The ladder (11) is located below the inspection port (41). The control switch (13) is electrically connected to the motor (318) and the battery (12).

3. A long linear overhead municipal utility cable entry ground fixation structure according to claim 2, wherein: A reinforcing rib (61) is welded between the cable rod (6) and the top wall of the cover (4), and the reinforcing rib (61) is positioned offset from the guide hole (9).

4. The long linear overhead municipal utility cable entry ground fixation structure of claim 3, wherein: The two converging arc strips (305) have a gap reserved along the height direction.

5. A method for implementing the long-line municipal public facility overhead cable transmission grounding fixing structure according to claim 4, characterized in that, The steps are as follows: The cable passes through the access component (8) of the crossbar (7), the fixing plate (82) can deflect with the short axis (81), the cable rod (6) is connected with four crossbars (7) in the circumferential direction, and cables in different directions can be connected. The cable passes between the two wheel grooves, and the screw (84) is rotated by the knob (85). The nut seat (86) can move down along the guide groove (83), the gap between the access wheel (87) and the support wheel (88) is reduced, and the cable is limited to prevent it from getting off. The cable extends into the cable well (1) along the guide hole (9). An inspection port (41) is set on the cover (4) to facilitate the operation personnel to enter the cable well (1) for installation and maintenance. A reinforcing rib (61) is welded between the cable pole (6) and the cover (4). The cable extending along the guide hole (9) is incorporated into the coiling arc strips (305) in different positions. The sliding sleeve (302) can move along the rectangular rod (301). One end of the traction rod (306) moves with the rectangular rod (301), and the other end drives the coiling arc strip (305) to deflect. The two coiling arc strips (305) have a gap reserved along the height direction to incorporate the cable into the coiling range and tighten it. The rotating positioning bolt (303) fixes the position of the sliding sleeve (302). The gathered cable bundle passes through the clamping port (316). The left cable bundle first passes through the preset cable passage port (307). The motor (318) drives the bevel gear (319) to rotate. The bevel gear (319) meshes with the transmission bevel gear ring (317). The hollow tube (313) rotates outside the inner insert rod (311). The second fan blade (315) can deflect relative to the first fan blade (312), thereby effectively fixing the cable bundle in the clamping port (316).

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