A transmission line tower

Abstract

The present invention discloses a transmission line tower, which relates to the technical field of transmission equipment. For this transmission line tower, the support shell can rotate around the central axis of the connecting rod, and the cross arm is installed on the support shell. The adjustment component has three states: lifting, pressing down, and remaining in place. When in the in-place state, it can make the support shell drive the cross arm to rotate around the central axis of the vertical pole; when in the lifting state, it can make the cross arm move horizontally relative to the support shell; when in the pressing-down state, it can make the support shell drive the cross arm to move linearly along the central axis of the vertical pole, thereby realizing the adjustment of the length and height of the cross arm, and can also realize the adjustment of the horizontal angle. For installation, there is no need to plan the angle of the cross arm in advance. After installation, the adjustment component can be used to make the cross arm of this tower parallel to or present a suitable arc with the cross arms of other towers, solving the problem in the prior art that it is inconvenient to adjust the horizontal angle of the cross arm and it is necessary to make advance planning before erection, and the operation is inconvenient.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission equipment, and particularly to a transmission line tower. Background Art

[0002] A transmission line tower is a structure that supports a transmission line, usually made of materials such as reinforced concrete and steel, and is used to bear the electrical load transmitted by the transmission line and the wind pressure, rain, snow and other loads of natural disasters. The height and type of the tower depend on the voltage level of the transmission line and the climatic conditions in the area where it is located. A single-pole tower is a type of transmission line tower, and its structural form is composed of a single steel pipe, with a cross arm and insulator installation positions at the top and an anchoring foundation at the bottom. The single-pole tower has the advantages of simple structure and convenient construction, and is suitable for transmission lines in straight sections, curved sections and corners, and is suitable for urban power transmission.

[0003] Chinese Patent No. CN113846897A discloses an adjustable cross arm for a steel pipe tower. When the turntable rotates, it drives the first convex column to rotate. When the first convex column rotates, it drives the second bevel gear to rotate. When the second bevel gear rotates, it drives the first bevel gear to rotate. When the first bevel gear rotates, it drives the lead screw to rotate. When the lead screw rotates, it drives the slider to move. When the slider moves, it drives the second convex column to move. When the second convex column moves, it drives the jumper rod to move, so that the wire can be close to the maintenance personnel, avoiding the situation that it is very inconvenient for the maintenance personnel to carry out maintenance due to the certain length of the cross arm, and thus improving the practicability of the cross arm.

[0004] Chinese Patent No. CN114961402A discloses an adjustable cross arm for a power steel pipe tower, which can realize the adjustment of the horizontal length of the cross arm and the inclination angle in the vertical plane, so that the adjustable area of the fixed position of the cable on the steel pipe tower is larger, solving the problem that the existing cross arm is a non-adjustable rigid structure and the fixed position of the cable cannot be adjusted after the cross arm is fixed on the steel pipe tower, making the setting of the cable more flexible, the operation convenient, and reducing the operation labor intensity of the operators.

[0005] Since a transmission cable needs to be erected by multiple towers, in order to save materials, several towers need to be erected on a specified route, and the cross arms on the towers need to be kept parallel. However, the above-mentioned existing technologies all have the inconvenience of adjusting the horizontal angle of the cross arm and require advance planning before erection, and the operation is inconvenient. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides a transmission line tower, which solves the problems that the existing technologies all have the inconvenience of adjusting the horizontal angle of the cross arm and require advance planning before erection, and the operation is inconvenient.

[0007] To achieve the above object, the present invention is realized by the following technical solutions: A transmission line tower, including a vertical pole fixed on a ground foundation pile, a connecting rod fixed on the top of the vertical pole, and a cross arm installed on the connecting rod, further comprising: fixing frames installed in a linear array on the connecting rod, a support shell rotatable around the central axis of the connecting rod is provided on the fixing frame, and the inner side wall of the support shell is movably connected to the surface of the cross arm; an adjusting assembly, which is configured to enable the support shell to drive the cross arm to rotate around the central axis of the vertical pole when in the in-situ state; to enable the cross arm to move laterally relative to the support shell when in the lifting state; and to enable the support shell to drive the cross arm to move linearly along the central axis of the vertical pole when in the pressing state.

[0008] Further, the fixing frame includes an installation part, an annular connecting part and an annular supporting part. The annular connecting part is fixedly connected to the bottom of the inner side wall of the annular supporting part. The installation part is fixedly connected to the inner side wall of the annular connecting part. The height of the annular supporting part is greater than that of the annular supporting part; the surface of the connecting rod is fixedly connected with a mounting plate through a fixing block, and the mounting plate and the installation part are fixed by fastening bolts.

[0009] Further, a connecting block is convexly provided on one side of the support shell close to the fixing frame. A surrounding block is rotatably connected to the inner side wall of the annular supporting part. The connecting block and the surrounding block are fixedly connected by a connecting bolt.

[0010] Further, the adjusting assembly includes a rotating tube, a pull rod and an adjusting member. An adjusting cavity and a storage cavity are provided inside the support shell through a partition. The rotating tube is rotatably installed inside the adjusting cavity. One end of the pull rod is inserted into the inside of the rotating tube and fixedly connected to the top surface of the adjusting member provided inside the rotating tube. A blocking tube is fixedly connected to the top of the rotating tube. The inner side wall of the blocking tube is movably connected to the surface of the pull rod. A support spring is fixedly connected to the bottom of the blocking tube. The end of the support spring away from the blocking tube is movably connected to the top surface of the adjusting member; the adjusting member includes a sliding part, an L-shaped supporting part and an annular part. The surface of the sliding part is movably connected to the inner side wall of the rotating tube. A limiting groove is provided on the surface of the rotating tube. The L-shaped supporting part is fixedly connected to the surface of the sliding part and movably connected to the inner side wall of the limiting groove. The annular part is fixedly connected to the top of the L-shaped supporting part. A plurality of teeth are arranged in a ring array on the top of the annular part; a first bevel gear is rotatably provided inside the adjusting cavity. A plurality of first engaging teeth are arranged in a ring array on the surface of the first bevel gear facing the annular part. When the sliding part moves upward, the teeth on the annular part can be engaged with the first engaging teeth. A second bevel gear is provided on the surface of the partition through a screw rod. The first bevel gear is meshed with the second bevel gear. One end of the screw rod movably penetrates through the partition and extends into the storage cavity. The surface of the cross arm is movably connected to the inner side wall of the support shell. The screw rod is threadedly connected to the cross arm.

[0011] Further, arc grooves are provided at the four corners of the storage cavity, arc protrusions are fixedly connected to the four corners of the crossbar, and the surface of the arc protrusion is movably connected to the inner side wall of the arc groove.

[0012] Further, a T-shaped rod is fixedly connected to the surface of the crossbar, a limit sleeve is fixedly connected to the surface of the support shell, and the surface of the T-shaped rod is movably connected to the inner side wall of the limit sleeve.

[0013] Further, the adjusting member further includes another set of L-shaped support portions arranged on the sliding portion, a ring portion and teeth arranged on the ring portion. This set of L-shaped support portions, ring portion and teeth arranged on the ring portion are symmetrically arranged with another set of L-shaped support portions, ring portion and teeth arranged on the ring portion; Two support springs are provided. One end of the other support spring is fixedly connected to the bottom surface of the sliding portion, and the other end is movably connected to the bottom of the inner side wall of the rotating tube. A threaded rod is rotatably connected to the bottom of the adjusting cavity. A plurality of second engaging teeth are arranged in an annular array on the top surface of the threaded rod. When the sliding portion moves downward, the teeth on the ring portion can be engaged with the second engaging teeth; The fixing frame further includes a socket portion, the socket portion is fixedly connected to the annular connecting portion, and the socket portion is threadedly connected to the threaded rod.

[0014] Further, the adjusting member further includes a tubular portion and a convex tooth portion. The tubular portion is fixedly connected to the sliding portion through a connecting protrusion extending out of the limit groove. A plurality of the convex tooth portions are evenly arranged in an annular array on the outer surface of the tubular portion; A rotatable toothed ring is further provided inside the adjusting cavity. A plurality of engaging teeth are evenly arranged in an annular array inside the toothed ring. The surface of the engaging teeth is movably connected to the surface of the convex tooth portion; The fixing frame further includes a plurality of evenly arranged tooth grooves opened on the surface of the annular support portion. The toothed ring is engaged with the annular support portion through the tooth grooves.

[0015] Further, a camming wheel is fixedly sleeved on the surface of the pull rod, and a clamping assembly is arranged at the top of the support shell and is assembled such that when the pull rod is pulled up or down, the camming wheel can rotate freely, and when and only when the camming wheel is in the initial position and the clamping assembly is disengaged from the camming wheel, the camming wheel can rotate under the action of the pull rod.

[0016] Further, the clamping assembly includes a clamping rod, a clamping block and a clamping spring. The clamping rod is movably connected to the support shell. The clamping block is fixedly connected to one end of the clamping rod. One end of the clamping spring is fixedly connected to the support shell, and the other end of the clamping spring is fixedly connected to the surface of the clamping block. A plurality of inserting tooth portions are arranged on the surface of the clamping block; The middle of the camming wheel is concave and provided with a plurality of slots with a trapezoidal cross-sectional shape. The slots are arranged in an array, and the shape of the slots is adapted to the shape of the inserting tooth portions.

[0017] The present invention has the following beneficial effects:

[0018] (1) For the transmission line tower pole, by providing a fixing frame, a support shell and an adjusting component, the support shell can rotate around the central axis of the connecting rod, and the cross arm is installed on the support shell. The adjusting component has three states: lifting, pressing down and remaining in place. When in the in-place state, the support shell can drive the cross arm to rotate around the central axis of the vertical pole; when in the lifting state, the cross arm can move horizontally relative to the support shell; when in the pressing-down state, the support shell can drive the cross arm to move linearly along the central axis of the vertical pole. Thus, the adjustment of the length and height of the cross arm can be realized, and the adjustment of the horizontal angle can also be realized. For installation, it is not necessary to plan the angle of the cross arm in advance. After installation, through the adjustment of the adjusting component, the cross arm can be made to be parallel to the cross arms of other tower poles or present a suitable arc. At the same time, it is also convenient for disassembly and installation, solving the problem in the prior art that it is inconvenient to adjust the horizontal angle of the cross arm and it is necessary to make advance planning before erection, with inconvenient operation.

[0019] (2) For the transmission line tower pole, by providing a clamping rod, a clamping block and a clamping spring, when the pull rod is in the initial state, the locking component locks the clamping wheel and it cannot rotate. After the clamping block is disengaged from the clamping wheel, the pull rod can rotate to realize the angle adjustment. Since the cross-sectional shape of the slot is trapezoidal, when the pull rod is lifted or pressed down, the clamping wheel will squeeze the clamping block, thus realizing the automatic movement of the clamping block. When it contacts the smooth surface on the clamping wheel, the engaging teeth are disengaged from the convex tooth part, so that the adjustment of the length and height can be realized.

[0020] Of course, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is of the present invention Figure 1 an enlarged view of the structure at A in;

[0023] Figure 3 is a schematic diagram of the structure at the support shell of the present invention;

[0024] Figure 4 is a schematic diagram of the internal structure of the support shell of the present invention;

[0025] Figure 5 is a schematic diagram of the structure of the adjusting component of the present invention;

[0026] Figure 6 is a left view of the adjusting component of the present invention;

[0027] Figure 7 For the present invention Figure 6 Cross-sectional view along line A-A in the present invention;

[0028] Figure 8 Schematic structural diagram of the adjusting member of the present invention;

[0029] Figure 9 Schematic structural diagram of the clamping component of the present invention;

[0030] Figure 10 Schematic structural diagram at the fixing bracket of the present invention;

[0031] Figure 11 Schematic structural diagram at the arc protrusion of the present invention;

[0032] Figure 12 Schematic structural diagram at the storage cavity of the present invention.

[0033] In the figure, 1, vertical rod; 2, connecting rod; 3, cross arm; 4, fixing bracket; 401, installation part; 402, annular connection part; 403, annular support part; 404, socket part; 5, support shell; 6, mounting plate; 7, fastening bolt; 8, connection block; 9, surrounding block; 10, connection bolt; 11, rotating tube; 12, pull rod; 13, adjusting member; 1301, sliding part; 1302, L-shaped support part; 1303, annular part; 1304, tooth; 1305, tubular part; 1306, convex tooth part; 14, partition; 15, adjusting cavity; 16, storage cavity; 17, blocking tube; 18, support spring; 19, limiting groove; 20, first bevel gear; 21, first tooth; 22, screw; 23, second bevel gear; 24, arc groove; 25, arc protrusion; 26, T-shaped rod; 27, limiting sleeve; 28, threaded rod; 29, second tooth; 30, tooth ring; 31, engaging tooth; 32, tooth groove; 33, camming wheel; 34, clamping rod; 35, clamping block; 36, clamping spring; 37, inserting tooth part; 38, inserting slot. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0036] Please refer to Figures 1-12 , an embodiment of the present invention provides a technical solution: a transmission line tower, including: a vertical pole 1 fixed on a ground foundation pile, a connecting rod 2 fixed on the top of the vertical pole 1, and a cross arm 3 installed on the connecting rod 2. It further includes: a fixing frame 4 installed on the connecting rod 2 in a linear array, a support shell 5 provided on the fixing frame 4 that can rotate around the central axis of the connecting rod 2, and the inner side wall of the support shell 5 is movably connected to the surface of the cross arm 3; an adjusting assembly, which is assembled to enable the support shell 5 to drive the cross arm 3 to rotate around the central axis of the vertical pole 1 when in the original position; enable the cross arm 3 to move horizontally relative to the support shell 5 when in the lifting state; and enable the support shell 5 to drive the cross arm 3 to move linearly along the central axis of the vertical pole 1 when in the pressing state.

[0037] Specifically, the fixing frame 4 includes an installation part 401, an annular connection part 402, and an annular support part 403. The annular connection part 402 is fixedly connected to the bottom of the inner side wall of the annular support part 403, the installation part 401 is fixedly connected to the inner side wall of the annular connection part 402, and the height of the annular support part 403 is greater than the height of the annular support part 403; the surface of the connecting rod 2 is fixedly connected with a mounting plate 6 through a fixing block, and the mounting plate 6 and the installation part 401 are fixed through a fastening bolt 7.

[0038] A connection block 8 protrudes from one side of the support shell 5 close to the fixing frame 4, and a surrounding block 9 is rotatably connected to the inner side wall of the annular support part 403. The connection block 8 and the surrounding block 9 are fixedly connected through a connection bolt 10.

[0039] In this implementation, during installation, it is only necessary to align the reserved holes on the installation part 401 with the reserved holes on the installation part 401, and then fix them through the fastening bolt 7 to complete the installation of the fixing frame 4. At the same time, to enhance the connection strength and also facilitate the adjustment of the angle of the cross arm 3, the surrounding block 9 and the connection block 8 can be fixed through the connection bolt 10.

[0040] Specifically, the adjusting assembly includes a rotating tube 11, a pull rod 12 and an adjusting member 13. Inside the support shell 5, an adjusting cavity 15 and a storage cavity 16 are arranged through a partition 14. The rotating tube 11 is rotatably installed inside the adjusting cavity 15. One end of the pull rod 12 is inserted into the rotating tube 11 and fixedly connected to the top surface of the adjusting member 13 arranged inside the rotating tube 11. The top of the rotating tube 11 is fixedly connected with a blocking tube 17. The inner side wall of the blocking tube 17 is movably connected to the surface of the pull rod 12. The bottom of the blocking tube 17 is fixedly connected with a support spring 18. One end of the support spring 18 away from the blocking tube 17 is movably connected to the top surface of the adjusting member 13; the adjusting member 13 includes a sliding part 1301, an L-shaped support part 1302 and an annular part 1303. The surface of the sliding part 1301 is movably connected to the inner side wall of the rotating tube 11. A limiting groove 19 is formed on the surface of the rotating tube 11. The L-shaped support part 1302 is fixedly connected to the surface of the sliding part 1301 and movably connected to the inner side wall of the limiting groove 19. The annular part 1303 is fixedly connected to the top of the L-shaped support part 1302. A plurality of teeth 1304 are arranged in a circular array on the top of the annular part 1303; a first bevel gear 20 is rotatably arranged inside the adjusting cavity 15. A plurality of first teeth 21 are arranged in a circular array on the surface of the first bevel gear 20 facing the annular part 1303. When the sliding part 1301 moves upward, the teeth 1304 on the annular part 1303 can be engaged with the first teeth 21. A second bevel gear 23 is arranged on the surface of the partition 14 through a screw 22. The first bevel gear 20 is meshed with the second bevel gear 23. One end of the screw 22 movably penetrates through the partition 14 and extends into the storage cavity 16. The surface of the cross arm 3 is movably connected to the inner side wall of the support shell 5. The screw 22 is threadedly connected to the cross arm 3.

[0041] In this embodiment, when the first teeth 21 come into contact with the teeth 1304, rotate the pull rod 12. The pull rod 12 drives the adjusting member 13 to rotate, so that the rotating tube 11 is driven to rotate under the drive of the L-shaped support part 1302, and the internal support spring 18 can be limited to prevent the support spring 18 from being twisted during rotation and causing disengagement. The teeth 1304 make the first bevel gear 20 rotate through the first teeth 21, thereby driving the meshed second bevel gear 23 to rotate, and then making the screw 22 rotate, realizing the outward movement of the inserted part of the cross arm 3 and realizing the adjustment of the length of the cross arm 3.

[0042] Specifically, arc grooves 24 are formed at the four corners of the storage cavity 16. Arc protrusions 25 are fixedly connected to the four corners of the cross arm 3. The surface of the arc protrusion 25 is movably connected to the inner side wall of the arc groove 24.

[0043] A T-shaped rod 26 is fixedly connected to the surface of the cross arm 3. A limiting sleeve 27 is fixedly connected to the surface of the support shell 5. The surface of the T-shaped rod 26 is movably connected to the inner side wall of the limiting sleeve 27.

[0044] In this embodiment, the connection strength between the cross arm 3 and the support shell 5 can be enhanced by the arc-shaped protrusion 25 and the T-shaped rod 26. At the same time, it can also play a role in guiding and limiting during the movement of the cross arm 3 to prevent deviation or shaking.

[0045] Specifically, the adjusting member further includes another set of L-shaped support portions 1302 provided on the sliding portion 1301, an annular portion 1303, and teeth 1304 provided on the annular portion 1303. The set of the L-shaped support portions 1302, the annular portion 1303, and the teeth 1304 provided on the annular portion 1303 are symmetrically arranged with another set of the L-shaped support portions 1302, the annular portion 1303, and the teeth 1304 provided on the annular portion 1303; two support springs 18 are provided. One end of the other support spring 18 is fixedly connected to the bottom surface of the sliding portion 1301, and the other end thereof is movably connected to the bottom of the inner side wall of the rotating tube 11. A threaded rod 28 is rotatably connected to the bottom of the adjusting cavity 15. A plurality of second teeth 29 are arranged in a ring-shaped array on the top surface of the threaded rod 28. When the sliding portion 1301 moves downward, the teeth 1304 on the annular portion 1303 can be engaged with the second teeth 29; the fixing frame 4 further includes a socket portion 404. The socket portion 404 is fixedly connected to the annular connecting portion 402, and the socket portion 404 is threadedly connected to the threaded rod 28.

[0046] In this embodiment, when the pressing rod 12 is pressed down, the rod 12 will drive the sliding portion 1301 inside the rotating tube 11 to move downward. Two sets of L-shaped support portions 1302, an annular portion 1303, and teeth 1304 provided on the annular portion 1303 are provided on the sliding portion 1301. The two sets of L-shaped support portions 1302, the annular portion 1303, and the teeth 1304 provided on the annular portion 1303 are symmetrically arranged relative to each other. By pressing down the rod 12, the teeth 1304 on the bottom ring can be brought into contact with the second teeth 29 on the threaded rod 28, so as to achieve engagement. The threaded rod 28 can be rotated under the action of the teeth 1304 and the second teeth 29, and further, the relative displacement between the threaded rod 28 and the socket portion 404 can be realized to adjust the height.

[0047] Specifically, the adjusting member 13 further includes a tubular portion 1305 and a convex tooth portion 1306. The tubular portion 1305 is fixedly connected to the sliding portion 1301 through a connecting protrusion extending out of the limiting groove 19. A plurality of convex tooth portions 1306 are evenly arranged in a ring shape on the outer surface of the tubular portion 1305; a rotatable tooth ring 30 is further provided inside the adjusting cavity 15. A plurality of engaging teeth 31 are evenly arranged in a ring shape inside the tooth ring 30. The surface of the engaging teeth 31 is movably connected to the surface of the convex tooth portion 1306; the fixing frame 4 further includes a plurality of evenly arranged tooth grooves 32 opened on the surface of the annular support portion 403. The tooth ring 30 is engaged with the annular support portion 403 through the tooth grooves 32.

[0048] In this implementation, by rotating the pull rod 12, the tubular part 1305 on the sliding part 1301 can be driven to rotate through the pull rod 12, so that the convex tooth part 1306 drives the tooth ring 30 to rotate through the engaging teeth 31, and then the relative movement of the tooth ring 30 along the surface of the annular support part 403 is realized, thereby realizing the adjustment of the horizontal angle.

[0049] Specifically, a clamping wheel 33 is fixedly sleeved on the surface of the pull rod 12, and a clamping component is arranged on the top of the support shell 5, which is assembled so that when the pull rod 12 is pulled up or down, the clamping wheel 33 can rotate freely, and when and only when the clamping wheel 33 is in the initial position and the clamping component is disengaged from the clamping wheel 33, the clamping wheel 33 can rotate under the action of the pull rod 12.

[0050] The clamping component includes a clamping rod 34, a clamping block 35 and a clamping spring 36. The clamping rod 34 is movably connected to the support shell 5, the clamping block 35 is fixedly connected to one end of the clamping rod 34, one end of the clamping spring 36 is fixedly connected to the support shell 5, and the other end of the clamping spring 36 is fixedly connected to the surface of the clamping block 35. A number of inserting tooth parts 37 are arranged on the surface of the clamping block 35; the middle part of the clamping wheel 33 is concave and provided with a slot 38 with a trapezoidal cross-sectional shape. A number of slots 38 are arranged in an array, and the shape of the slot 38 is adapted to the shape of the inserting tooth part 37.

[0051] In this implementation, when the pull rod 12 is in the initial state, the locking component locks the clamping wheel 33 and cannot rotate. After the clamping block 35 is disengaged from the clamping wheel 33, the pull rod 12 can rotate to realize the angle adjustment. Since the cross-sectional shape of the slot 38 is trapezoidal, when the pull rod 12 is lifted or pressed down, the clamping wheel 33 will squeeze the clamping block 35, thereby realizing the automatic movement of the clamping block 35. When it contacts the smooth surface on the clamping wheel 33, the engaging teeth 31 are disengaged from the convex tooth part 1306, so that the adjustment of the length and height can be realized.

[0052] During use, first fix the vertical rod 1 on the ground foundation pile, and then install the fixing frame 4 on the connecting rod 2. The fixing frames 4 are arranged in a linear array. As Figure 10 shown, the fixing frame 4 includes a mounting part 401, an annular connecting part 402 and an annular support part 403. A reserved hole is provided on the mounting part 401. An installation plate 6 is fixedly connected to the connecting rod 2 through a fixing block. After the fixing frame 4 is sleeved on the connecting rod 2, the reserved hole on the mounting part 401 and the reserved hole on the mounting part 401 are docked, and then fixed by a fastening bolt 7, so as to realize the installation of the fixing frame 4. Then the connecting rod 2 can be hoisted to the top of the vertical rod 1, or the support shell 5 and the cross arm 3 can be installed on the connecting rod 2 first and then hoisted.

[0053] An adjusting component is arranged inside the support shell 5, which can be used to adjust the length, height and horizontal angle of the cross arm 3.

[0054] As shown Figure 4 in the figure, the interior of the support shell 5 is divided into a storage cavity 16 and an adjustment cavity 15 by a partition plate 14. The adjustment component is located inside the adjustment cavity 15. During installation, first insert the cross arm 3 into the interior of the storage cavity 16. The cross arm 3 can be set to include a support arm part for installing the support cable and an insertion part inserted into the interior of the storage cavity 16. Dock the arc protrusion 25 on the insertion part with the arc groove 24 inside the storage cavity 16, insert it partially, and make the preset threaded hole on the insertion part contact the screw rod 22. Then lift the pull rod 12 upward, so that the pull rod 12 drives the adjustment part 13 inside the rotating tube 11 to move upward. The adjustment part 13 includes a sliding part 1301, an L-shaped support part 1302, and an annular part 1303. A limiting groove 19 is formed on the surface of the rotating tube 11. The surface of the sliding part 1301 is connected to the inner side wall of the rotating tube 11. As Figure 5 shown in the figure, the L-shaped support part 1302 extends to the outside of the rotating tube 11, and the annular part 1303 is fixed on the L-shaped support part 1302 and surrounds the rotating tube 11. A number of teeth 1304 are arranged in a ring array on the annular part 1303. Lifting the pull rod 12 will cause the sliding part 1301 to move upward, thereby driving the L-shaped support part 1302 and the annular part 1303 to move upward, and further enabling contact with the rotatable first bevel gear 20 inside the support shell 5.

[0055] A number of first teeth 21 are arranged in a ring array on the surface of the first bevel gear 20. A rotating bearing can be provided on the first bevel gear 20, and the rotating shaft bearing is fixed to the support shell 5 through a connecting strip, so as to enable the rotation of the first support shell 5. When the first teeth 21 come into contact with the teeth 1304, rotate the pull rod 12. The pull rod 12 drives the adjustment part 13 to rotate, so that the rotating tube 11 rotates under the drive of the L-shaped support part 1302, and the support spring 18 inside can be limited, preventing the support spring 18 from being distorted and disengaging during rotation. The teeth 1304 cause the first bevel gear 20 to rotate through the first teeth 21, thereby driving the second bevel gear 23 engaged therewith to rotate, and further causing the screw rod 22 to rotate, so that the insertion part of the cross arm 3 enters the interior of the storage cavity 16. Finally, pass the T-shaped rod 26 through the outer wall of the support shell 5 and fix it to the cross arm 3, which is used to limit and guide the movement of the cross arm 3 during subsequent adjustment, and also increases the connection strength.

[0056] After the cross arm 3 is installed, release the pull rod 12. Under the action of the support spring 18, the adjustment part 13 will automatically reset, so that the teeth 1304 can be disengaged from the first teeth 21. As Figure 7As shown, two support springs 18 are provided. One is located at the top of the sliding part 1301, and the other is located at the bottom of the sliding part 1301. Both support springs 18 are in a compressed state. The elastic coefficient of the support spring 18 at the bottom can be greater than that of the support spring 18 at the top, so that the sliding part 1301 is in the central position of the rotating tube 11. One end of the support spring 18 at the top is fixedly connected to the bottom of the plugging tube 17, and the other end is movably abutted against the top surface of the sliding part 1301. The plugging tube 17 is fixed inside the rotating tube 11. For the convenience of disassembly, the fixation between the plugging tube 17 and the rotating tube 11 can be a threaded fixation. The top area of the rotating tube 11 can be fixed to the support shell 5 through a bearing, which is convenient for rotation and positioning. One end of the support spring 18 at the bottom is fixed to the bottom of the sliding part 1301, and the other end is movably connected to the bottom of the inner side wall of the rotating tube 11.

[0057] After the cross arm 3 is installed, it is synchronously installed on the fixing frame 4 together with the support shell 5, as Figure 10 shown. The fixing frame 4 further includes a socket part 404. The socket part 404 is fixedly connected to the bottom of the annular connecting part 402. An internal thread is provided inside the socket part 404. During installation, the bottom of the threaded rod 28 is butted against the socket part 404. At this time, the pull rod 12 is pressed down, and the pull rod 12 will drive the sliding part 1301 inside the rotating tube 11 to move downward. Two groups of L-shaped support parts 1302, an annular part 1303 and teeth 1304 provided on the annular part 1303 are provided on the sliding part 1301. The two groups of L-shaped support parts 1302, the annular part 1303 and the teeth 1304 provided on the annular part 1303 are symmetrically arranged. By pressing down the pull rod 12, the teeth 1304 on the bottom ring can be brought into contact with the second teeth 29 on the threaded rod 28, so as to achieve clamping. The threaded rod 28 can be rotated under the action of the teeth 1304 and the second teeth 29, and then the threaded rod 28 can be screwed into the inside of the socket part 404.

[0058] The threaded rod 28 is movably connected to the support shell 5 through a bearing. At the same time, the rotating tube 11 can also be connected to the threaded rod 28 through a bearing. When the first bevel gear 20 is rotated by pulling up the pull rod 12 to adjust the length of the cross arm 3, the rotating tube 11 will not drive the threaded rod 28 to rotate.

[0059] When the support shell 5 descends to the lowest position, stop rotating the pull rod 12. Under the action of the support spring 18, the pull rod 12 is reset, so that the tooth block at the bottom is disengaged from the second engaging tooth 29. Then, reinforce the support shell 5. An integrally formed and protruding connecting block 8 is provided on the support shell 5. A surrounding block 9 is rotatably connected to the inner side wall of the annular support portion 403. The surrounding block 9 can be rotatably connected to the inner side wall of the annular support portion 403 through a bearing. A reserved hole is provided on the surrounding block 9, and a reserved hole is also provided on the connecting block 8. The surrounding block 9 and the connecting block 8 can be fixed by a connecting bolt 10, so as to cooperate with the threaded rod 28 to achieve fixation, enhance the structural strength, and at the same time can also realize the rotation of the support shell 5, thereby adjusting the angle. Two symmetrically arranged surrounding blocks 9 are provided for each annular support portion 403, which can achieve synchronous rotation and do not need to be adjusted separately. Therefore, when the angle needs to be adjusted, the angle can be quickly adjusted.

[0060] In order to be able to perform controllable angle adjustment, the adjusting member 13 further includes a tubular portion 1305 and a plurality of convex tooth portions 1306. The tubular portion 1305 is fixedly connected to the sliding portion 1301 through a connecting protrusion extending out of the limiting groove 19. The convex tooth portions 1306 are evenly arranged in an annular array on the outer surface of the tubular portion 1305. At the same time, a rotatable toothed ring 30 is installed inside the adjusting cavity 15. The toothed ring 30 can be rotatably connected by connecting a bearing to the bottom of the toothed ring 30, and the bearing is fixedly connected to the inside of the adjusting cavity 15 through a support rod. A plurality of engaging teeth 31 are evenly arranged in an annular array inside the toothed ring 30. When the pull rod 12 is in the initial state, the surface of the engaging tooth 31 is movably connected to the surface of the convex tooth portion 1306. In addition, the fixing frame 4 further includes a plurality of evenly arranged tooth grooves 32 opened on the surface of the annular support portion 403. The toothed ring 30 is engaged with the annular support portion 403 through the tooth grooves 32. When the angle needs to be adjusted, only rotate the pull rod 12. Through the pull rod 12, the tubular portion 1305 on the sliding portion 1301 can be driven to rotate, so that the convex tooth portion 1306 drives the toothed ring 30 to rotate through the engaging teeth 31, and then the toothed ring 30 moves relative to the surface of the annular support portion 403, thereby realizing the adjustment of the horizontal angle.

[0061] In order to be able to lock after the angle adjustment is completed, a clamping assembly is provided on the support shell 5, including a clamping rod 34, a clamping block 35 and a clamping spring 36. At the same time, a clamping wheel 33 is provided on the pull rod 12. The middle of the clamping wheel 33 is concave and provided with a slot 38 with a trapezoidal cross-sectional shape. A plurality of slots 38 are arranged in an array, and the shape of the slot 38 is adapted to the shape of the inserted tooth portion 37, such as Figure 4As shown, when the pull rod 12 is in the initial state, the locking component locks the clamping wheel 33 and it cannot rotate. Only after the clamping block 35 is disengaged from the clamping wheel 33 can the pull rod 12 rotate to achieve angle adjustment. Since the cross-sectional shape of the slot 38 is trapezoidal, when the pull rod 12 is lifted or pressed down, the clamping wheel 33 will squeeze the clamping block 35, thus realizing the automatic movement of the clamping block 35. When it contacts the smooth surface on the clamping wheel 33, the engaging teeth 31 are disengaged from the convex tooth portion 1306, so that the adjustment of length and height can be achieved.

[0062] In summary, by means of the adjusting member 13, the threaded rod 28, the screw rod 22 and the fixing bracket 4, the adjustment of the length and height of the cross arm 3 can be achieved, and the adjustment of the horizontal angle can also be achieved. For installation, there is no need to pre-plan the angle of the cross arm 3 in advance. After installation, by adjusting the adjusting component, it can be made to be parallel to the cross arms 3 of other poles or towers or present a suitable arc, and at the same time, disassembly and installation are also facilitated.

[0063] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0064] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A transmission line tower, comprising: A vertical pole (1) fixed to a ground foundation pile, a connecting rod (2) fixed to the top of the vertical pole (1), and a cross arm (3) installed on the connecting rod (2), characterized in that it further comprises: A fixing bracket (4) installed in a linear array on the connecting rod (2), a support shell (5) rotatable about the central axis of the connecting rod (2) is provided on the fixing bracket (4), and the inner side wall of the support shell (5) is movably connected to the surface of the cross arm (3); An adjusting assembly, which is assembled to enable the support shell (5) to drive the cross arm (3) to rotate about the central axis of the vertical pole (1) when in the in-situ state; to enable the cross arm (3) to move laterally relative to the support shell (5) when in the lifting state; and to enable the support shell (5) to drive the cross arm (3) to move linearly along the central axis of the vertical pole (1) when in the pressing state; The adjusting assembly includes a rotating tube (11), a pull rod (12) and an adjusting member (13). An adjusting cavity (15) and a receiving cavity (16) are provided inside the support shell (5) through a partition plate (14). The rotating tube (11) is rotatably installed inside the adjusting cavity (15). One end of the pull rod (12) is inserted into the inside of the rotating tube (11) and fixedly connected to the top surface of the adjusting member (13) provided inside the rotating tube (11). The top of the rotating tube (11) is fixedly connected to a blocking tube (17). The inner side wall of the blocking tube (17) is movably connected to the surface of the pull rod (12). The bottom of the blocking tube (17) is fixedly connected to a support spring (18). The end of the support spring (18) away from the blocking tube (17) is movably connected to the top surface of the adjusting member (13); The adjusting member (13) includes a sliding portion (1301), an L-shaped support portion (1302) and an annular portion (1303). The surface of the sliding portion (1301) is movably connected to the inner side wall of the rotating tube (11). A limiting groove (19) is formed on the surface of the rotating tube (11). The L-shaped support portion (1302) is fixedly connected to the surface of the sliding portion (1301) and movably connected to the inner side wall of the limiting groove (19). The annular portion (1303) is fixedly connected to the top of the L-shaped support portion (1302). A plurality of teeth (1304) are arranged in a ring array on the top of the annular portion (1303); A first bevel gear (20) is rotatably arranged inside the adjusting cavity (15). A plurality of first teeth (21) are arranged in a ring array on the surface of the first bevel gear (20) facing the annular part (1303). When the sliding part (1301) moves upward, the teeth (1304) on the annular part (1303) can be engaged with the first teeth (21). A second bevel gear (23) is arranged on the surface of the partition plate (14) through a screw (22). The first bevel gear (20) is engaged with the second bevel gear (23). One end of the screw (22) movably penetrates through the partition plate (14) and extends into the storage cavity (16). The surface of the cross arm (3) is movably connected to the inner side wall of the support shell (5). The screw (22) is threadedly connected to the cross arm (3).

2. The transmission line tower according to claim 1, characterized in that: The fixing frame (4) includes a mounting part (401), an annular connecting part (402) and an annular supporting part (403). The annular connecting part (402) is fixedly connected to the bottom of the inner side wall of the annular supporting part (403). The mounting part (401) is fixedly connected to the inner side wall of the annular connecting part (402). The height of the annular connecting part (402) is greater than the height of the annular supporting part (403). A mounting plate (6) is fixedly connected to the surface of the connecting rod (2) through a fixing block. The mounting plate (6) and the mounting part (401) are fixed through a fastening bolt (7).

3. The transmission line tower according to claim 2, characterized in that: A connecting block (8) protrudes from one side of the support shell (5) close to the fixing frame (4). A surrounding block (9) is rotatably connected to the inner side wall of the annular supporting part (403). The connecting block (8) and the surrounding block (9) are fixedly connected through a connecting bolt (10).

4. The transmission line tower according to claim 1, characterized in that: Arc grooves (24) are formed at the four corners of the storage cavity (16). Arc protrusions (25) are fixedly connected to the four corners of the cross arm (3). The surface of the arc protrusion (25) is movably connected to the inner side wall of the arc groove (24).

5. The transmission line tower according to claim 4, characterized in that: A T-shaped rod (26) is fixedly connected to the surface of the cross arm (3). A limiting sleeve (27) is fixedly connected to the surface of the support shell (5). The surface of the T-shaped rod (26) is movably connected to the inner side wall of the limiting sleeve (27).

6. The transmission line tower according to claim 1, characterized in that: The adjusting member further includes another set of L-shaped supporting parts (1302), an annular part (1303) and teeth (1304) arranged on the annular part (1303) provided on the sliding part (1301). This set of the L-shaped supporting parts (1302), the annular part (1303) and the teeth (1304) arranged on the annular part (1303) are symmetrically arranged with another set of the L-shaped supporting parts (1302), the annular part (1303) and the teeth (1304) arranged on the annular part (1303). The supporting springs (18) are provided in two. One end of the other supporting spring (18) is fixedly connected to the bottom surface of the sliding part (1301), and the other end thereof is movably connected to the bottom of the inner side wall of the rotating tube (11). A threaded rod (28) is rotatably connected to the bottom of the adjusting cavity (15). The rotating tube (11) is threadedly connected to the threaded rod (28). A plurality of second engaging teeth (29) are annularly and arrayedly arranged on the top surface of the threaded rod (28). When the sliding part (1301) moves downward, the teeth (1304) on the annular part (1303) can be engaged with the second engaging teeth (29). The fixing bracket (4) further includes a sleeving part (404). The sleeving part (404) is fixedly connected to the annular connecting part (402). The sleeving part (404) is threadedly connected to the threaded rod (28).

7. The transmission line tower according to claim 1, characterized in that: The adjusting member (13) further includes a tubular part (1305) and a convex tooth part (1306). The tubular part (1305) is fixedly connected to the sliding part (1301) through a connecting protrusion extending out of the limiting groove (19). A plurality of the convex tooth parts (1306) are annularly and evenly arrayed on the outer surface of the tubular part (1305). A rotatable toothed ring (30) is further arranged inside the adjusting cavity (15). A plurality of engaging teeth (31) are annularly and evenly arrayed inside the toothed ring (30). The surface of the engaging teeth (31) is movably connected to the surface of the convex tooth part (1306). The fixing bracket (4) further includes a plurality of evenly arrayed tooth grooves (32) formed on the surface of the annular supporting part (403). The toothed ring (30) is engaged with the annular supporting part (403) through the tooth grooves (32).

8. The transmission line tower according to any one of claims 1-7, characterized in that: A camming wheel (33) is fixedly sleeved on the surface of the pull rod (12). A clamping assembly is arranged at the top of the support shell (5). It is assembled such that when the pull rod (12) is pulled up or down, the camming wheel (33) can rotate freely. When and only when the camming wheel (33) is in the initial position and the clamping assembly is disengaged from the camming wheel (33), the camming wheel (33) can rotate under the action of the pull rod (12).

9. The transmission line tower according to claim 8, characterized in that: The clamping assembly includes a clamping rod (34), a clamping block (35) and a clamping spring (36). The clamping rod (34) is movably connected to the support shell (5). The clamping block (35) is fixedly connected to one end of the clamping rod (34). One end of the clamping spring (36) is fixedly connected to the support shell (5). The other end of the clamping spring (36) is fixedly connected to the surface of the clamping block (35). A plurality of inserting tooth parts (37) are arranged on the surface of the clamping block (35). The middle of the camming wheel (33) is concave and provided with a plurality of slots (38) with a trapezoidal cross-sectional shape. The slots (38) are arrayed. The shape of the slots (38) is adapted to the shape of the inserting tooth parts (37).

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