A power transmission line support device

Abstract

The utility model discloses a power transmission line support device, including base mechanism, telescopic tower body mechanism, lifting mechanism and line support module. Base mechanism is used to provide basic support and leveling, is equipped with wheel, draw bar and lockable support foot, and is convenient for moving and firm. Telescopic tower body mechanism is composed of the tower body sleeve of multiple sections of sleeve connection, and the height step -by -step adjustment and fixed are realized through locking hole and locking pin. Lifting mechanism adopts worm and rack drive mode to drive tower body telescopic, has torque amplification and self -locking performance. Line support module includes line cross arm, support ring and inclined strut, forms stable triangle stress structure, ensures the safe load bearing of power transmission line. The device structure light weight, transportation and installation are convenient, and the support height can be adjusted flexibly, and can be dismantled and repeatedly uses, is applicable to mountainous area, post-disaster repair and temporary construction and a variety of scenes.

Description

Technical Field

[0001] This utility model relates to the field of power, specifically to a power transmission line support device. Background Technology

[0002] As a critical infrastructure in the power system, transmission lines are commonly erected in two main ways: overhead lines and underground cables. Overhead lines are widely used in power transmission projects due to their advantages such as low construction cost, convenient maintenance, and short construction period. The load-bearing capacity and support of overhead lines typically rely on permanent reinforced concrete or steel towers, which are fixed to the ground foundation through pouring or pre-embedding to achieve overall stability and meet long-term service requirements.

[0003] In conventional urban power grids or large-scale transmission channels, these fixed towers can well meet the requirements for long-term stable operation of the lines. However, in some special areas, such as mountainous areas, forest areas, post-disaster repair sites, or temporary construction sites, transmission lines often do not need to be erected for a long period of time, but only need to provide transitional or temporary power transmission for a certain period of time. In this case, the use of traditional cast-in-place fixed towers is not flexible enough, requiring complex foundation construction procedures and being difficult to dismantle and relocate quickly after the task is completed, resulting in extended construction periods, increased costs, and waste of resources.

[0004] Furthermore, the height of traditional power transmission towers is a fixed value, and once built, it cannot be adjusted according to the actual construction environment or the route of the power line. When it is necessary to connect to lines of different heights or adjacent towers later, problems often arise in the transmission lines not being able to connect accurately, resulting in cables being suspended or having uneven tension. This not only affects the safety of power transmission but also increases the workload of subsequent modifications.

[0005] To meet the needs of temporary power transmission or flexible dispatching, some existing technologies have attempted to use lightweight, detachable towers. However, most solutions still rely on cranes and heavy machinery for installation and transportation. Such equipment is difficult to access in areas with limited access or complex terrain, increasing construction costs and severely impacting installation efficiency and emergency repair response speed. In summary, existing technologies for supporting temporary transmission lines still suffer from technical problems such as heavy weight, inconvenient transportation, reliance on heavy machinery for installation, non-adjustable support height, and low reusability. Summary of the Invention

[0006] To solve the above-mentioned technical problems, this utility model provides a power transmission line support device.

[0007] This utility model is achieved through the following technical solution: This utility model discloses a power transmission line support device, comprising: The base mechanism is used to provide bottom support and leveling. A telescopic tower mechanism is vertically mounted on the aforementioned base mechanism in a telescopic manner to provide an adjustable support height. A lifting mechanism is provided on the side of the telescopic tower mechanism and is used to drive the telescopic tower mechanism to perform telescopic movements. The line support module is installed on the top or side of the telescopic tower mechanism and is used to support and fix the transmission line. The aforementioned base mechanism, telescopic tower mechanism, lifting mechanism, and line support module are sequentially connected and work together to form a complete device for supporting power transmission lines.

[0008] The aforementioned base mechanism plays a crucial role in the overall structure, providing foundation support and stable positioning. Since power transmission line construction and maintenance often require work on uneven terrain, the base mechanism must not only possess load-bearing capacity but also a leveling function to ensure the vertical stability of the telescopic tower structure. Through the deployment and locking of its legs, it achieves multi-point grounding, maintaining stability under load and preventing overturning due to external forces or wind loads.

[0009] The aforementioned telescopic tower mechanism employs a multi-section sleeve connection to achieve flexible height adjustment. Its basic principle is similar to a telescope-like structure, using segmented extension and locking to change the support height. This design not only facilitates transportation and storage but also allows for flexible height adjustment on-site to meet the installation or maintenance needs of different transmission lines.

[0010] The aforementioned lifting mechanism provides manual or mechanical assistance, allowing operators to extend the telescopic tower body step by step with minimal effort. Through mechanical transmission, such as the meshing of a worm gear and rack, a large torque can be transmitted, while also possessing self-locking characteristics, thus ensuring that the tower body will not accidentally slip when not in operation.

[0011] The aforementioned line support module is located on the top or side of the telescopic tower mechanism and is the part that directly contacts the power line. Its design balances load-bearing capacity, ease of installation, and safety. Through the combined structure of crossarms, diagonal braces, and support collars, it effectively disperses the concentrated load caused by line tension, while its detachable design facilitates installation and removal. Overall, the four main parts of this utility model form a mutually supportive technical system, ensuring both reliable load-bearing performance and ease of operation for on-site construction and maintenance.

[0012] Furthermore, the aforementioned base mechanism includes: It has wheels at the bottom and an X-shaped support base for the main body; A support cylinder with a rectangular cross-section is fixedly installed above the center position of the aforementioned support base; A traction rod with a handle at one end and hinged to a support base at the other end; A jack mechanism is installed at the bottom of the inside of the aforementioned support cylinder; The lifting plate is fixedly connected to the output end of the aforementioned jack mechanism; Multiple feet are hinged to the bottom periphery of the aforementioned support base; The output end of the aforementioned jack mechanism is connected to the lifting plate, which is used to drive the plate to perform vertical lifting and lowering movements, thereby driving the telescopic tower mechanism to perform vertical lifting and lowering movements.

[0013] The X-shaped structure of the aforementioned support base is a common stability design. The X-shaped arrangement allows the base to form a large support span on the horizontal plane, effectively lowering the overall center of gravity and enhancing anti-tipping ability. Simultaneously, wheels at the four ends of the X-shape significantly reduce the burden of manual handling during transportation and placement.

[0014] The aforementioned support cylinder has a rectangular cross-section, primarily to improve its bending and torsional resistance. Compared to a circular cylinder, a rectangular cylinder is less prone to rotation under lateral forces, thus enhancing the vertical positioning effect of the telescopic tower mechanism. The support cylinder also serves as a transitional connection between the jack mechanism and the tower sleeve assembly, and its internal space provides guidance for vertical lifting and lowering movements.

[0015] The aforementioned tow rod is hinged to the support base, facilitating folding and unfolding. One end of the tow rod has a handle, allowing the user to easily pull it, enabling the entire device to move like a handcart. This design is particularly essential in field operations, effectively improving the device's mobility.

[0016] The aforementioned jack mechanism is installed at the bottom of the support cylinder and achieves vertical lifting by driving the lifting plate. As a commonly used mechanical transmission component, the jack employs hydraulic or screw-mechanical methods, its principle being to support and lift large loads with a small force. The lifting plate is fixedly connected to the output end of the jack mechanism, thus directly transmitting the lifting force to the telescopic tower mechanism, playing a role in initial lifting and leveling.

[0017] The aforementioned outriggers, when deployed, provide multi-point support, further increasing the contact area between the base and the ground. On the construction site, the outriggers are secured with locking bolts to prevent loosening due to external impacts, thus ensuring long-term safety and stability. The combination of outriggers and foot pads allows for adaptation to soft, gravelly, or irregular ground, providing anti-sinking and anti-tipping effects.

[0018] Furthermore, the aforementioned telescopic tower mechanism includes: A multi-section, retractable, and interconnected tower body sleeve assembly; A collar is fixedly fitted around the outer periphery of the upper end of each tower body sleeve; Several locking holes are set at equal intervals along the vertical direction on each section of the tower body sleeve; A locking pin can be inserted into two locking holes on two adjacent sleeve sections to achieve a relatively fixed locking position; Several lifting holes, which cooperate with the aforementioned lifting mechanism, are vertically and equally spaced on the side wall of each tower section sleeve. The largest section of the tower body sleeve assembly is fitted inside the support cylinder of the base mechanism.

[0019] The aforementioned tower sleeve assembly is the core component of the telescopic tower mechanism, consisting of multiple nested sleeve sections. The diameter of each sleeve section decreases sequentially, allowing for folding and storage when not extended, minimizing space usage. During extension, the height is increased progressively through section-by-section lifting and locking. This structural design combines compactness with flexibility.

[0020] The aforementioned collar is fixed to the upper outer circumference of each tower section sleeve, which not only strengthens the sleeve opening and prevents wear under long-term use, but also provides a stable installation benchmark for the arrangement of locking holes and lifting holes.

[0021] The aforementioned locking holes are arranged at equal intervals along the vertical direction. Their function is to achieve relative fixation between adjacent sleeve sections by inserting locking pins. The locking pins, as mechanical positioning elements, are made of high-strength steel and can withstand the axial pressure from line tension. This multi-point locking method ensures that the telescopic tower mechanism will not shift under prolonged load.

[0022] The aforementioned lifting holes cooperate with the lifting mechanism, allowing the rack and locking buckle to be inserted to complete the step-by-step lifting operation. Moreover, the operator can lift the tower body in a uniform step manner, avoiding excessively fast or unstable lifting and lowering.

[0023] The largest tower section sleeve is directly fitted inside the support cylinder, which means that the weight and working load of the entire tower are ultimately transferred to the base mechanism through the support cylinder. This force transmission path ensures the overall rationality of the structure's stress distribution.

[0024] Furthermore, the aforementioned lifting mechanisms include: A drive mechanism that is rotatably mounted on the connecting hinge; A rack that is vertically arranged and connected to the output end of the aforementioned drive mechanism; A locking buckle is rotatably mounted on the top of the rack; The aforementioned connecting hinge is fixedly connected to the side wall of the lowest sleeve of the telescopic tower mechanism.

[0025] The aforementioned drive mechanism achieves a flexible installation method through a rotatable connection with the connecting hinge, enabling it to maintain a stable working angle relative to the tower sleeve during lifting operations. The connecting hinge is fixed together with the tower sleeve, forming the installation base point of the drive mechanism. This arrangement ensures that the lifting mechanism always operates in close contact with the telescopic tower mechanism, thereby avoiding deviation caused by external forces or errors.

[0026] The rack is vertically positioned, forming a direct linear transmission with the output of the drive mechanism. As a linear motion element, the rack utilizes the meshing principle to convert rotational motion into translational motion, facilitating gradual lifting. The rack meshing with the gears not only has high transmission efficiency, but its linear motion characteristics are also perfectly aligned with the vertical direction of the tower, thus effectively preventing eccentric loading.

[0027] The aforementioned locking buckle is located at the top of the rack. Its function is to cooperate with the lifting hole on the tower sleeve during lifting or lowering to achieve temporary support and stable positioning. Because the locking buckle is hinged to the rack, it can maintain a certain degree of swing freedom while the rack moves vertically, thus allowing it to smoothly engage in the lifting hole. The end of the buckle is designed to abut and embed itself in the hole, ensuring that it will not automatically dislodge under external force.

[0028] Overall, the lifting mechanism is designed to transform limited human operation into a stable and reliable gradual lifting motion using mechanical transmission devices. Simultaneously, temporary supports are provided at each stage using clamping latches, allowing the tower to rise section by section and remain in a controlled state. The advantage of this mechanism is its high safety, preventing sudden tower collapse due to instability.

[0029] Furthermore, the aforementioned drive mechanism includes: Crank handle; A worm gear coaxially connected to the end of the aforementioned crank handle that is passively rotated; A worm gear that meshes with the aforementioned worm; The aforementioned worm gear meshes with the aforementioned rack; the aforementioned locking buckle is hinged to the aforementioned rack, and the end of the aforementioned locking buckle is V-shaped, which can be inserted into the aforementioned lifting hole.

[0030] The aforementioned crank handle is a manually operated direct input component, allowing the operator to input driving force by manually cranking the handle. The crank handle is coaxially connected to the worm gear, enabling the rotational motion to be efficiently transmitted to the worm gear.

[0031] The meshing of the worm and worm wheel constitutes a typical worm gear reduction mechanism. This transmission method has a large reduction ratio, which can convert small manual input torque into large output torque, thereby driving the rack to overcome the weight of the tower and achieve lifting. At the same time, the worm gear transmission has a self-locking characteristic, that is, the rack will not move in the opposite direction under the action of external force, which greatly improves the safety during operation.

[0032] The aforementioned worm gear further meshes with a vertically arranged rack, ultimately converting the rotational motion into vertical linear motion. This multi-stage transmission combination not only reduces operational difficulty but also improves the stability of the tower's gradual extension.

[0033] The aforementioned locking buckle features a V-shaped end design to facilitate accurate insertion into the lifting hole during the lifting process. The guiding effect of the V-shape allows it to automatically center itself upon contact with the edge of the lifting hole, improving operational efficiency and reliability. Simultaneously, the V-shaped wedging effect generates significant friction when subjected to external force, thereby enhancing locking stability.

[0034] The complete system, consisting of a crank handle, worm gear, worm wheel, rack and pinion, and locking buckle, is a typical manual mechanical lifting mechanism. Its advantages are compact structure, high reliability, and no need for external power for operation, making it particularly suitable for use in field construction scenarios.

[0035] Furthermore, the aforementioned line support module includes: Two line support collars, which are slidably fitted onto the tower sleeve and arranged vertically up and down; A line crossarm fixedly installed on the upper line support collar; Diagonal bracing rods that are hinged at both ends to the aforementioned line crossarm and the lower line support collar, respectively. An installation handle is provided on the line support collar; The aforementioned line support collar is slidably fitted onto the tower sleeve for positioning during the installation of the line crossarm; the aforementioned installation handle is used to move the entire line support module.

[0036] The aforementioned line support collar is slidably fitted onto the tower sleeve. This design facilitates the installation of the line crossarm at different heights on the tower. By adjusting the collar's position, the optimal line installation point can be flexibly selected according to construction needs. Simultaneously, the collar structure ensures a tight fit against the tower sleeve under load, preventing the crossarm from shifting due to line tension.

[0037] The aforementioned line crossarm, fixed to the upper line support collar, is a core component directly supporting the transmission line. Line crossarms are typically made of high-strength metal to ensure they do not bend or fatigue-damage under long-term load. Their lateral extension arrangement allows for parallel installation of multiple lines, conforming to standard transmission line construction methods.

[0038] The two ends of the aforementioned diagonal brace are hinged to the line crossarm and the lower line support collar, respectively, forming a triangular support structure. A triangle is the most stable geometric structure; therefore, by reinforcing it with diagonal braces, the bending stiffness and torsional resistance of the line crossarm can be effectively improved, preventing deformation caused by line tension or wind loads.

[0039] The aforementioned installation handle is located on the line support collar and is mainly used for handling and installation operations. Under field construction conditions, line support modules usually need to be manually carried and fitted onto the tower sleeve at a high position. Therefore, the installation handle provides a convenient force-bearing point, making the operation process more labor-saving and safer.

[0040] By combining line support collars, line crossarms, diagonal braces, and installation handles, the entire line support module forms a complete force-bearing and installation system. This not only ensures the stable suspension of the transmission line but also facilitates rapid on-site assembly and disassembly, greatly improving construction efficiency.

[0041] Furthermore, the ends of the aforementioned support legs are provided with pads to increase the grounding area, and the aforementioned support legs are hinged to the aforementioned support base via a pin, and their relative positions to the aforementioned support base can be locked by a locking bolt.

[0042] The aforementioned support legs are fitted with foot pads at their ends to increase the contact area with the ground. On construction sites, ground conditions are often complex, such as soft soil, gravel surfaces, or uneven terrain. If only the rod-shaped ends of the support legs are in contact, excessive localized pressure can easily occur, causing the legs to sink into the ground and affecting overall stability. The planar expansion design of the foot pads effectively disperses pressure, increases support stability, and prevents the device from gradually sinking under long-term stress.

[0043] The aforementioned legs are hinged to the support base via pins, providing foldability. When not in use, the legs can be folded along the support base, reducing the overall size of the device and facilitating transportation and storage. When unfolded, the legs are secured to the support base with locking bolts to prevent deflection due to vibration or external forces during construction.

[0044] This "hinged + locking" combination ensures the adjustability and stability of the outriggers. On uneven ground, the operator can adjust the outrigger deployment angle and then secure it with locking bolts to achieve overall leveling of the device. Combined with a jack mechanism, this further ensures the verticality of the telescopic tower mechanism.

[0045] Furthermore, the aforementioned support base and support cylinder are directly provided with several diagonal bracing components, and the aforementioned diagonal bracing components are provided with movable handles for gripping.

[0046] Several diagonal bracing components are installed between the aforementioned support base and the support cylinder to enhance the overall structural rigidity. As the load-bearing base of the tower sleeve assembly, the support cylinder bears the weight of the tower and the tension of the power line. If the connection between the support base and the support cylinder is direct, it is prone to swaying under prolonged stress or external impact. The addition of diagonal bracing components creates a triangular reinforcement structure, significantly improving bending and torsional resistance.

[0047] The aforementioned diagonal bracing member is equipped with a movable handle, a design that combines structural functionality with ease of operation. When handling the device, the movable handle provides the operator with a convenient gripping point, significantly improving efficiency, especially when multiple people are needed to collaboratively move or adjust the device's direction. The diagonal bracing member itself is a high-strength member; using it as a handle does not affect structural strength and avoids the need for additional parts, simplifying the overall design.

[0048] Furthermore, the aforementioned locking hole is a round hole, and the aforementioned lifting hole is a square hole. The locking hole is round, which helps to achieve point contact when the locking pin is inserted, reducing assembly resistance. The boundary of the round hole provides uniform support to the pin, effectively dispersing stress under load and preventing localized stress concentration that could cause deformation of the hole wall.

[0049] The aforementioned lifting holes are square in shape primarily to better match the V-shaped end of the locking clip. Compared to round holes, square holes have a straight transition at the edges, providing a larger contact area and making the locking clip less prone to slippage under force. Furthermore, the four corners of the square holes act as anti-rotation limits, ensuring the locking clip is more securely engaged during lifting.

[0050] The combination of round and square holes is used in different functional applications: round holes are suitable for long-term positioning and fixation, ensuring reliable operation of the locking pin under force; square holes are suitable for temporary support and stress points during operation, improving the safety and controllability of lifting operations. This differentiated arrangement makes the operation of the telescopic tower mechanism more rational and efficient.

[0051] In summary, this utility model organically combines key steps such as load-bearing, lifting, locking, and line support through a functional link of "base mechanism - telescopic tower mechanism - lifting mechanism - line support module". The base mechanism is responsible for stabilization and initial lifting, the telescopic tower mechanism provides height adjustment, the lifting mechanism enables safe extension in stages, and the line support module completes the positioning and fixation of the transmission line.

[0052] Throughout the entire operation, the various components complement each other: the stability of the base mechanism ensures the extension of the tower body; the locking pins of the telescopic tower body mechanism and the clamping buckles of the lifting mechanism provide double protection; and the triangular stabilizing structure of the line support module ensures the safety of the line load. The device balances portability, stability, and operational safety, making it particularly suitable for use in power transmission line construction and maintenance.

[0053] The beneficial effects of this utility model are as follows: The structure is lightweight, and the whole device is easy to transport and operate manually, reducing the reliance on large machinery.

[0054] It has good weather resistance and corrosion resistance, and can adapt to complex and ever-changing outdoor environments.

[0055] It facilitates transportation and installation, requiring only a small number of construction workers to complete assembly and use.

[0056] The support height can be flexibly adjusted according to actual needs, and can be adapted to power transmission line connections under different working conditions.

[0057] It is highly detachable and reusable, can be quickly recycled and transferred after the project is completed, has a high material recycling rate, and meets energy-saving and environmental protection requirements.

[0058] It is flexible in use and can be applied to various scenarios such as mountainous areas, post-disaster emergency response, power repair, and temporary construction, and has strong adaptability and versatility. Attached Figure Description

[0059] Figure 1 : A three-dimensional structural schematic diagram of this utility model; Figure 2 Another three-dimensional structural schematic diagram of this utility model; Figure 3 Side view of this utility model; Figure 4 : A three-dimensional structural cross-sectional view of this utility model; Figure 5 : A three-dimensional structural diagram of the base mechanism of this utility model; Figure 6 Top view of the base mechanism of this utility model; Figure 7 : A three-dimensional structural diagram of the telescopic tower mechanism of this utility model; Figure 8 : Schematic diagram of the internal structure of the lifting mechanism of this utility model; Figure 9 : A three-dimensional structural diagram of the circuit support module of this utility model; In the diagram: 1-Base mechanism, 2-Telescopic tower mechanism, 3-Lifting mechanism, 4-Line support module, 11-Support seat, 12-Support cylinder, 13-Moving push rod, 14-Jack mechanism, 15-Lifting plate, 16-Support leg, 21-Tower sleeve assembly, 22-Lock ring, 23-Locking hole, 24-Locking pin, 25-Lifting hole, 31-Drive mechanism, 32-Rack, 33-Securing buckle, 34-Connecting hinge seat, 311-Handle, 312-Worm gear, 313-Worm wheel, 41-Line crossarm, 42-Diagonal brace, 43-Line support collar, 44-Installation handle. Detailed Implementation

[0060] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: Example: Figure 1-9 As shown, in this embodiment, the transmission line support device mainly includes a base mechanism 1, a telescopic tower mechanism 2, a lifting mechanism 3, and a line support module 4. These components are connected sequentially and work together to achieve the functions of safe support and construction assistance for the transmission line.

[0061] The base mechanism 1 consists of a support base 11, a support cylinder 12, a traction rod 13, a jack mechanism 14, a lifting plate 15, and multiple support legs 16. The support base 11 is arranged in an X-shape and has wheels at the bottom to ensure flexibility during movement and positioning. The support cylinder 12 is fixed at the center of the support base 11 and has a rectangular cross-section to enhance bending and torsional resistance. One end of the traction rod 13 has a handle, and the other end is hinged to the support base 11 for dragging during movement. The jack mechanism 14 is located at the bottom inside the support cylinder 12, and its output end is fixedly connected to the lifting plate 15, enabling it to drive the telescopic tower mechanism 2 for initial vertical lifting. The support legs 16 are hinged to the periphery of the support base 11, with foot pads at the ends, and can be fixed in the extended position with locking bolts to ensure good stability of the device during construction.

[0062] The telescopic tower mechanism 2 includes a tower sleeve assembly 21, a collar 22, locking holes 23, locking pins 24, and lifting holes 25. The tower sleeve assembly 21 is composed of multiple sleeves of different diameters nested together, with the largest sleeve installed inside the support cylinder 12. Each sleeve has a collar 22 fixed to its upper outer circumference for added strength and as a reference for hole placement. The locking holes 23 are evenly spaced vertically in the form of round holes, used to insert the locking pins 24 to secure adjacent sleeves. The lifting holes 25 are evenly spaced vertically in the form of square holes, used to engage with the locking buckles 33 of the lifting mechanism 3 to achieve a step-by-step lifting function.

[0063] The lifting mechanism 3 consists of a drive mechanism 31, a rack 32, a locking buckle 33, and a connecting hinge 34. The connecting hinge 34 is fixed to the outer wall of the lowest tower sleeve, providing a mounting base for the drive mechanism 31. The drive mechanism 31 includes a crank 311, a worm 312, and a worm wheel 313, wherein the worm 312 meshes with the worm wheel 313 and drives the rack 32 to move vertically in a straight line. The locking buckle 33 is hinged to the top of the rack 32, with a V-shaped end that can engage in the lifting hole 25, thereby providing support and positioning during the lifting process. By manually operating the crank 311, the worm gear mechanism converts the rotational motion into vertical translational motion, and because the worm gear transmission has a self-locking characteristic, it can prevent the tower from accidentally slipping when not in operation.

[0064] The line support module 4 includes a line crossarm 41, a diagonal brace 42, a line support collar 43, and an installation handle 44. The line support collar 43 is slidably fitted onto the tower sleeve and fixed in position by pins and locking holes 23. The line crossarm 41 is fixed to the upper support collar 43 to support the transmission line; the lower support collar 43 is connected to the crossarm via the diagonal brace 42, forming a stable triangular load-bearing structure. The installation handle 44 provides a gripping position during handling and installation, facilitating manual operation.

[0065] The base mechanism 1 of the above-mentioned structural design ensures overall stability and ease of movement; the telescopic tower mechanism 2 provides height adjustment; the lifting mechanism 3 enables safe, step-by-step lifting; and the line support module 4 ensures reliable load-bearing capacity for the transmission line. These four parts work together to enable the device to play a safe, efficient, and flexible role in the construction and maintenance of transmission lines.

[0066] In actual use, the working process of this transmission line support device is as follows: The first step is positioning and placement. The operator uses the wheels and towing rod 13 on the base mechanism 1 to tow the device to the designated construction location. Because the base structure adopts a handcart-like design, transportation can be completed relatively easily even in complex terrain conditions. Upon arrival at the target location, the operator unfolds the multiple support legs 16 sequentially, ensuring their foot pads are fully in contact with the ground. The support legs 16 are hinged to the support base 11 via pins, allowing for adjustment of the support point distribution at different angles. The operator secures the support legs 16 to the support base 11 using locking bolts, thus achieving stable positioning of the device.

[0067] The next step is initial leveling and lifting. The operator operates the jack mechanism 14 to move the lifting plate 15 upward. Since the lifting plate 15 is directly connected to the telescopic tower mechanism 2, the entire tower sleeve assembly 21 is vertically lifted. At this time, the overall leveling of the device is achieved, and an initial height is provided for subsequent gradual extension. The design principle of the jack mechanism 14 can amplify small force inputs to generate sufficient lift to raise the tower structure.

[0068] The next step is the step-by-step extension of the tower body. The operator first inserts the V-shaped end of the locking buckle 33 into the lifting hole 25 on the target tower body sleeve. Then, the operator rotates the crank 311 on the drive mechanism 31, causing the worm gear 312 to rotate the worm wheel 313. The worm wheel meshes with the rack 32, pushing the rack 32 vertically upwards. As the rack moves upwards, the locking buckle 33 engages with the lifting hole 25, generating a supporting force that lifts the sleeve section, achieving controlled, step-by-step raising. Whenever two adjacent sleeve sections align their locking holes 23, the operator inserts the locking pin 24, thus fixing the sleeve section at the predetermined height. By repeating this process, the telescopic tower body mechanism 2 gradually extends to the desired height. Due to the self-locking characteristic of the worm gear mechanism, the tower body remains stable during lifting intervals, avoiding the risk of slippage.

[0069] After the tower reaches the target height, the installation of the line crossarm begins. The operator uses the handle 44 to move the line support module 4 and places the line support collar 43 onto the tower sleeve. Secured by pins that mate with the locking holes 23, the line crossarm 41 is firmly installed at the top of the tower. The diagonal brace 42 and the lower support collar 43 form a triangular structure, maintaining the crossarm's balance and rigidity under load. Once installed, the line crossarm 41 can be used to support and secure the transmission line.

[0070] Under operating and load conditions, all locking pins 24 are secured in place, forming a reliable force transmission path between the tower sleeves. At this time, the tension of the transmission line is transmitted to the tower sleeve assembly 21 through the crossarm 41, and then distributed to the ground by the base mechanism 1. The entire device relies on multi-point support and reinforcement structure to effectively resist external forces such as line tension and wind load, ensuring safety during construction and maintenance.

[0071] After construction or maintenance work is completed, a retrieval operation is required. The operator first relieves external stress on the transmission line, such as by moderately loosening conductor tension. Then, the locking buckle 33 is inserted into the lifting hole 25 of the tower sleeve to be lowered, and the corresponding locking pin 24 is pulled out. By reversing the crank handle 311, the rack 32 moves downward, and under the support of the locking buckle 33, the tower sleeves retract sequentially. This process is the reverse of the lifting operation, gradually completing the tower's retraction. After all sleeves have retracted, the operator uses the jack mechanism 14 to lower the lifting plate 15 to its lowest position, and the telescopic tower mechanism 2 is completely retracted into the support cylinder 12. Finally, the outriggers 16 are retracted, and the device is again towed away from the site using the traction rod 13 and wheels.

[0072] Through the above steps, the entire device can achieve a complete work cycle from positioning, lifting, use to dismantling. This workflow is not only intuitive to operate, but also has reliable limit and locking measures at each key step, ensuring safety and controllability during construction.

[0073] The working principle of this transmission line support device can be analyzed from three aspects: mechanical support, transmission control, and structural stability.

[0074] First, from the perspective of the overall force path, the transmission line tension acts on the upper end of the telescopic tower mechanism 2 through the line crossarm 41. The tower sleeve assembly 21 transmits axial pressure step by step through the locking pins 24 between adjacent sleeves, and finally through the largest tower sleeve section to the support sleeve 12. The support sleeve 12 is directly connected to the support base 11, and the force is distributed to the ground with the help of the support legs 16 and their pads, achieving overall stability. This force path is clear and continuous, avoiding stress concentration and improving the overall reliability of the structure.

[0075] Secondly, from the perspective of vertical extension and retraction principles, the device employs a dual lifting mode consisting of a jack mechanism 14 and a lifting mechanism 3. The jack mechanism 14 provides initial overall lifting and leveling functions, primarily used for overall elevation and attitude adjustment in the initial stage. The lifting mechanism 3, through worm gear and rack transmission, converts manually input rotational torque into linear motion in the vertical direction, thereby achieving the step-by-step lifting of the telescopic tower mechanism 2. The worm gear transmission not only has a high torque amplification effect but also excellent self-locking properties, preventing reverse slippage even under external forces, thus providing a safety guarantee for the lifting process.

[0076] Furthermore, from the perspective of limiting and stabilizing principles, the locking hole 23 and locking pin 24 on the telescopic tower mechanism 2 form a fixing mechanism, while the lifting hole 25 and the clamping buckle 33 form a temporary support mechanism. The two work together to ensure that the tower body remains in a safe "support-transfer-fixation" state during extension and retraction. The locking pin 24 ensures the fixation of the tower sleeve under long-term load conditions, while the clamping buckle 33 provides transitional support during operation, preventing accidental falls due to operational interruptions or external interference.

[0077] Furthermore, from a structural stability perspective, the X-shaped support base 11 and its extended legs 16 of the base mechanism 1 provide a wide support range, and the foot pads further increase the ground contact area, effectively preventing the device from tilting or sinking on uneven ground. The rectangular cross-section design of the support cylinder 12 enhances torsional stiffness, making the tower less prone to torsional displacement under lateral wind loads. The multi-section sleeve connection method of the telescopic tower mechanism 2 combines compactness with height adjustability, allowing for flexible extension according to on-site construction needs.

[0078] The working principle of the line support module 4 is mainly reflected in the triangular stabilizing structure. The line crossarm 41 is fixed to the top of the tower by the support collar 43, while the diagonal brace 42 and the lower collar 43 form a triangular mechanical system. The triangular structure naturally has good stability and resistance to deformation, which can effectively resist the bending moment and torque brought by line tension and wind load, keep the crossarm balanced and undeformed, and thus ensure the safe installation of the line.

[0079] In summary, the device's working principle embodies the characteristics of "rational mechanical transmission, safe self-locking transmission, comprehensive limiting measures, and stable and reliable structure." It achieves step-by-step lifting through human-driven mechanical transmission, supplemented by multiple locking and support mechanisms, ensuring safety and controllability during power transmission line construction and maintenance. Furthermore, the device's compact design provides excellent mobility and storage, making it particularly suitable for field operations.

[0080] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A transmission line support device, characterized in that, include: A base mechanism (1) is used to provide bottom support and leveling; Telescopic tower mechanism (2), which is vertically mounted on the base mechanism (1) in a telescopic manner, is used to provide an adjustable support height; The lifting mechanism (3) is located on the side of the telescopic tower mechanism (2) and is used to drive the telescopic tower mechanism (2) to perform telescopic movement. Line support module (4), which is set on the top or side of the telescopic tower mechanism (2), is used to support and fix the transmission line; The base mechanism (1), the telescopic tower mechanism (2), the lifting mechanism (3), and the line support module (4) are sequentially connected and cooperate with each other to form a complete device for supporting power transmission lines.

2. The apparatus according to claim 1, characterized in that, The base mechanism (1) includes: The bottom is equipped with wheels, and the main body is an X-shaped support base (11). A support cylinder (12) with a rectangular cross-section is fixedly installed above the center position of the support base (11). A traction rod (13) with a handle at one end and hinged to a support base (11) at the other end. A jack mechanism (14) is installed at the bottom of the inside of the support cylinder (12). A lifting plate (15) is fixedly connected to the output end of the jack mechanism (14). Multiple legs (16) are hinged to the bottom periphery of the support base (11); The output end of the jack mechanism (14) is connected to the lifting plate (15) to drive it to perform vertical lifting and lowering movements, thereby driving the telescopic tower mechanism (2) to perform vertical lifting and lowering movements.

3. The apparatus according to claim 1 or 2, characterized in that, The telescopic tower mechanism (2) includes: A multi-section, retractable, and interconnected tower sleeve assembly (21). A collar (22) is fixedly fitted on the outer periphery of the upper end of each tower body sleeve. Several locking holes (23) are set at equal intervals along the vertical direction on each section of the tower body sleeve. A locking pin (24) can be inserted into two locking holes (23) on two adjacent sleeves to achieve relative fixation. Several lifting holes (25) are vertically and equally spaced on the side wall of each tower sleeve, which cooperate with the lifting mechanism (3). The largest section of the tower body sleeve assembly (21) is fitted inside the support cylinder (12) of the base mechanism (1).

4. The apparatus according to claim 1 or 2, characterized in that, The lifting mechanism (3) includes: A drive mechanism (31) is rotatably mounted on a connecting hinge (34). A rack (32) is vertically arranged and is connected to the output end of the drive mechanism (31). A locking buckle (33) is rotatably disposed at the top of the rack (32); The connecting hinge (34) is fixedly connected to the side wall of the lowest sleeve of the telescopic tower mechanism (2).

5. The apparatus according to claim 4, characterized in that, The drive mechanism (31) includes: Crank handle (311); A worm (312) is coaxially connected to one end of the crank (311) that is passively rotated. A worm wheel (313) meshes with the worm (312); The worm gear (313) meshes with the rack (32); the clamping buckle (33) is hinged to the rack (32), and the end of the clamping buckle (33) is V-shaped and can be inserted into the lifting hole (25).

6. The apparatus according to claim 1, characterized in that, The line support module (4) includes: Two line support collars (43) are slidably fitted onto the tower sleeve and arranged vertically up and down. A line crossarm (41) is fixedly installed on the upper line support collar (43). The diagonal brace (42) is hinged at both ends to the line crossarm (41) and the lower line support collar (43) respectively. An installation handle (44) is provided on the line support collar (43). The line support collar (43) is slidably fitted onto the tower sleeve and is used for positioning when installing the line crossarm (41); the installation handle (44) is used to move the entire line support module (4).

7. The apparatus according to claim 2, characterized in that, The end of the support leg (16) is provided with a foot pad for increasing the grounding area, and the support leg (16) is hinged to the support base (11) by a pin, and its relative position to the support base (11) can be locked by a locking bolt.

8. The apparatus according to claim 2, characterized in that, The support base (11) and the support cylinder (12) are directly provided with several diagonal bracing components, and the diagonal bracing components are provided with movable handles for gripping.

9. The apparatus according to claim 3, characterized in that, The locking hole (23) is a round hole, and the lifting hole (25) is a square hole.

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