Truss tower lifting system

Abstract

The utility model relates to a truss tower lifting system. Including the ladder stand subassembly, install the guide pipe subassembly on the ladder stand subassembly, still include the car structure and the safety lock, and the safety lock cooperates with the safety steel wire rope, still include the lifting roof and the lifting subassembly, still include the working steel wire rope that winds on the lifting subassembly, one end of working steel wire rope is connected with the top of car structure, the other end is arranged in the guide pipe subassembly, install the counterweight post that moves in the guide pipe subassembly on working steel wire rope, still include the emergency stop control subassembly that is movably connected with the top of guide pipe subassembly, when the counterweight post moves to the emergency stop control subassembly and collides with it, can drive the emergency stop control subassembly and move upward, still include the state monitoring subassembly that movably connects on the lifting roof, the utility model can drive the staff and the maintenance equipment along the ladder steady lifting movement, and can avoid the car and appear the possibility of falling or the top of the rush because of the emergency, and the security is strong.

Description

Technical Field

[0001] This utility model belongs to the field of lifting equipment technology, and in particular relates to a truss tower lifting system. Background Technology

[0002] Transmission towers are the support points for overhead lines and are tower-shaped structures used for power transmission. Their structural feature is that all tower types are spatial truss structures. A transmission tower with one circuit installed is a single-circuit transmission tower, while a transmission tower with two circuits installed is a double-circuit transmission tower.

[0003] Transmission towers are a crucial component of power transmission. To ensure the reliable and safe operation of transmission lines, workers must climb the towers using ladders (or climbing structures) to perform various inspections and maintenance. With the development of ultra-high voltage (UHV), extra-high voltage (EHV), and smart grids, the workload of line operation and maintenance is increasing, and tower climbing for inspections is becoming more frequent. As tower heights continue to rise, the intensity of tower climbing work is increasing, and efficiency is decreasing. Therefore, gradually utilizing mechanical equipment to replace manual tower climbing will become the future direction of power maintenance work.

[0004] Currently, traditional tower climbing devices include four types: shaft elevators, construction hoists, tower climbing machines, and portable manned tower climbing devices. These four types of manned lifting equipment have greatly facilitated the inspection and maintenance of power transmission lines, solving the problem of workers climbing towers on foot and carrying tools. However, many problems remain. The safety of various power transmission tower lifting devices is poor. Due to structural limitations and the influence of wind and weather factors, the equipment is prone to swaying. Moreover, during operation, the lifting equipment is susceptible to sudden falls or overshooting due to unforeseen circumstances, endangering the lives of workers. Therefore, there is an urgent need to design a truss tower lifting system to solve these problems. Utility Model Content

[0005] This invention provides a structurally sound truss tower lifting system to address technical problems existing in prior art. This system allows for stable lifting and lowering of personnel and maintenance equipment along a ladder, preventing the car from falling or overshooting in case of emergencies, thus ensuring high safety.

[0006] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is as follows: A truss tower lifting system includes a climbing ladder assembly fixedly connected to the truss tower, and a guide tube assembly arranged parallel to the climbing ladder assembly; it also includes a car structure, with several roller devices installed on the back of the car structure, all of which are vertically connected to the climbing ladder assembly in a rolling manner; a safety lock is installed inside the car structure, and the safety lock cooperates with a safety steel wire rope installed on the truss tower; it also includes a lifting top plate installed on the top of the truss tower and a lifting assembly electrically connected to a power source, and a working steel wire wound on the lifting assembly. The system includes a working wire rope, one end of which is connected to the top of the car structure, and the other end which passes through the guide tube assembly. A counterweight column is installed on the working wire rope and is movably installed through the guide tube assembly. The system also includes an emergency stop control assembly that is movably connected to the top of the guide tube assembly. When the counterweight column moves into the emergency stop control assembly under the drive of the working wire rope and collides with it, it can drive the emergency stop control assembly to move upward, thereby performing an emergency stop braking on the car structure. The system also includes a status monitoring assembly that is movably connected to the lifting top plate for installing a safety wire rope, which is used to monitor the operation of the car structure and thus brake the car structure.

[0007] The advantages and positive effects of this utility model are as follows: This utility model provides a truss tower lifting system. Through the set lifting components and working steel wire ropes, the car structure can be driven to move up and down. Since the car structure is in rolling contact with the climbing components through several roller devices, the guiding effect of the climbing components ensures that the car structure can move stably up and down along the climbing components. This protects personnel and carried maintenance equipment from external factors such as wind and weather during the lifting process, preventing the car structure and other equipment from shaking during lifting. Through the coordinated operation of the set status monitoring components, safety steel wire ropes, and safety locks, the lifting and moving status of the car structure can be monitored in real time, and the system can detect and respond to situations where the car structure falls or overshoots the top. When the car structure is braked, the safety of the staff is ensured and the safety of the lifting system is improved. The guide assemblies guide and protect the working wire rope, preventing it from swaying due to external factors such as wind and weather, and preventing it from getting entangled or colliding with other parts of the lifting system or moving path, thus extending the service life of the working wire rope. The emergency stop control assembly can brake the car structure in case the wire rope in the guide assembly becomes entangled or knotted due to uneven stress, abnormal vibration, or impurities, thereby preventing sudden situations in the lifting car structure and further improving the safety of the staff.

[0008] Preferably, the status monitoring assembly includes a monitoring mounting sleeve pivotally connected to the lifting top plate, a height-adjustable trigger sensor 1 is installed on the outer wall of the monitoring mounting sleeve, the trigger sensor 1 adopts a bidirectional trigger limit switch; an elastic connection mechanism is provided in the inner cavity of the monitoring mounting sleeve, which is elastically connected to the trigger sensor 1 and can trigger it, for installing a safety wire rope.

[0009] Preferably, the elastic connection mechanism includes a tensioning screw that slides through the monitoring mounting sleeve, and a compression spring located in the inner cavity of the monitoring mounting sleeve is sleeved on the tensioning screw; the lower end of the compression spring is in abutting contact with the bottom of the inner cavity of the monitoring mounting sleeve, and the upper end is in abutting contact with a locking nut and washer installed on the upper part of the tensioning screw; it also includes a trigger plate installed on the lower part of the tensioning screw for triggering a trigger sensor.

[0010] Preferably, the emergency stop control assembly includes a second, position-adjustable trigger sensor mounted on the truss tower; it also includes a counterweight plate with a through slot in the middle, the counterweight plate passing through the top of the conduit assembly and supported on the ladder assembly, a support cylinder mechanism mounted on the counterweight plate, the upper end of the conduit assembly passing through and slidingly contacting the support cylinder mechanism; two parallel blocking screws mounted on the top of the support cylinder mechanism, with a gap between the two blocking screws for a safety wire rope to pass through; and a trigger plate structure mounted on the top of the support cylinder mechanism for triggering the second trigger sensor.

[0011] Preferably, the support cylinder mechanism includes two guide plate clamps that are butt-mounted and detachably connected to the counterweight plate. The two guide plate clamps are detachably connected by bolts and lock nuts. The two butt-mounted guide plate clamps form a square tube that slides with the guide assembly. The trigger plate structure includes two trigger plates II with a semi-circular structure and a downward-bent diameter edge. The two trigger plates II are detachably connected by bolts and lock nuts. An opening slot is provided at the center of each trigger plate II. The two butt-mounted opening slots form a rope-threading slot through which the upper end of the support cylinder mechanism can pass. The inner edge of each opening slot is bent downward and connected to the upper end of the corresponding guide plate clamp through a blocking screw and a lock nut.

[0012] Preferably, the ladder assembly includes several ladder sections installed on the truss tower, with the ladder sections connected end-to-end; the conduit assembly includes rope-threading conduit sections installed on each ladder section and arranged parallel to them, with an installation sleeve for plugging into each adjacent rope-threading conduit section, and also includes several installation pressure plates installed on the corresponding ladder sections, with an installation adapter plate installed through the several installation pressure plates, and a conduit support for clamping and fixing the rope-threading conduit section installed on the installation adapter plate, with a V-shaped groove adapted to the outer peripheral wall of the rope-threading conduit section at the inner end of the conduit support.

[0013] Preferably, the lifting assembly includes a lifting mounting frame, on which a hoist and a guide plate are mounted, and a wire rope guide is mounted on the guide plate. The wire rope guide includes an arc-shaped pipe section that is connected to the upper end of the hoist, a straight pipe section integrally formed at the lower end of the arc-shaped pipe section, and a wire rope guide sleeve connected to the lifting mounting frame installed at the lower end of the straight pipe section. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the main body of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the lifting component in this utility model;

[0017] Figure 4 This is a schematic diagram showing the coordination of the status monitoring component, safety wire rope, and safety lock in this utility model;

[0018] Figure 5 This is a partial cross-sectional schematic diagram of the condition monitoring component in this utility model;

[0019] Figure 6 yes Figure 2 Enlarged diagram of region A in the image;

[0020] Figure 7 yes Figure 2 A magnified diagram of region B in the image.

[0021] In the diagram: 1. Car structure; 2. Working wire rope; 3. Lifting top plate; 4. Lifting assembly; 4-1. Hoist; 4-2. Lifting mounting frame; 4-3. Electrical control box; 4-4. Wire rope guide tube; 4-5. Guide tube mounting plate; 4-6. Wire rope guide sleeve; 5. Status monitoring assembly; 5-1. Trigger plate one; 5-2. Monitoring mounting sleeve; 5-3. Tensioning screw; 5-4. Compression spring; 5-5. Locking nut; 5-6. Pivot connecting shaft; 5-7. Limit mounting plate; 5-8. Trigger sensor one; 6. Safety wire rope; 7. Emergency stop control assembly; 7-1. Counterweight plate; 7-2. Conduit clamp; 7-3. Trigger plate II; 7-4. Blocking screw; 7-5. Rope threading slot; 7-6. Trigger sensor II; 7-7. Limiting mounting seat; 8. Ladder assembly; 8-1. Ladder section; 8-2. Anti-fall guide rail section; 9. Conduit assembly; 9-1. Installation sleeve; 9-2. Rope threading conduit section; 9-3. Installation pressure plate; 9-4. Installation adapter plate; 9-5. Conduit support; 10. Safety lock; 11. Counterweight column. Detailed Implementation

[0022] To further understand the invention content, features, and effects of this utility model, the following embodiments are provided in detail:

[0023] Please see Figure 1 and Figure 2 The truss tower lifting system of this utility model includes a climbing ladder assembly 8 fixedly connected to the truss tower, and a guide tube assembly 9 installed on the climbing ladder assembly 8 and arranged parallel to it; it also includes a car structure 1, on the back of the car structure 1, a plurality of roller devices are installed, all of which are vertically connected to the climbing ladder assembly 8 in a rolling manner, and a safety lock 10 is installed inside the car structure 1, which cooperates with the safety steel wire rope 6 installed on the truss tower.

[0024] This embodiment also includes a lifting top plate 3 installed on the top of the truss tower and a lifting assembly 4 electrically connected to a power source. It also includes a working steel wire rope 2 wound on the lifting assembly 4. One end of the working steel wire rope 2 is connected to the top of the car structure 1. For ease of installation, a connecting pin is installed on the top of the car structure 1. A shackle is installed on the connecting pin, and the end of the working steel wire rope 2 is connected to the aforementioned shackle.

[0025] The other end of the working wire rope 2 passes through the conduit assembly 9, and a counterweight column 11 is movably installed on the working wire rope 2 within the conduit assembly 9. It also includes an emergency stop control assembly 7 movably connected to the top of the conduit assembly 9. During actual operation, the emergency stop control assembly 7 can be mounted on the ladder assembly 8 or on a limiting plate installed on the emergency stop control assembly 7. When the counterweight column 11 moves into the emergency stop control assembly 7 under the drive of the working wire rope 2 and collides with it, it can cause the emergency stop control assembly 7 to move upward, thereby applying emergency braking to the car structure 1.

[0026] like Figure 1 As shown, this embodiment also includes a status monitoring component 5 movably connected to the lifting top plate 3 for installing the safety wire rope 6, for monitoring the operation of the car structure 1 and thus braking the car structure 1.

[0027] like Figure 5As shown, the aforementioned status monitoring component 5 includes a monitoring mounting sleeve 5-2 pivotally connected to the lifting top plate 3. Specifically, a pivot connecting shaft 5-6 passes through the top of the monitoring mounting sleeve 5-2 and is pivotally connected to the lifting top plate 3 via the pivot connecting shaft 5-6. A height-adjustable trigger sensor 5-8 is installed on the outer wall of the monitoring mounting sleeve 5-2. The trigger sensor 5-8 employs a bidirectional trigger limit switch. Specifically, a limit mounting plate 5-7 is installed on the monitoring mounting sleeve 5-2. The limit mounting plate 5-7 has a Z-shaped structure and several longitudinally extending slots. The limit mounting plate 5-7 is adjustablely connected to the monitoring mounting sleeve 5-2 via bolts and lock nuts passing through the slots. The trigger sensor 5-8 is also adjustablely connected to the limit mounting plate 5-7 via bolts and lock nuts passing through the slots.

[0028] Furthermore, an elastic connection mechanism is provided inside the monitoring installation sleeve 5-2, which is elastically connected to and can trigger the trigger sensor 5-8, for installing the safety wire rope 6. The elastic connection mechanism includes a tensioning screw 5-3 slidably inserted inside the monitoring installation sleeve 5-2, with a compression spring 5-4 sleeved on the tensioning screw 5-3 and located inside the monitoring installation sleeve 5-2. The lower end of the compression spring 5-4 is in tight contact with the bottom of the inner cavity of the monitoring installation sleeve 5-2, and the upper end is in tight contact with a locking nut 5-5 and a washer installed on the upper part of the tensioning screw 5-3. The elastic connection mechanism also includes a trigger plate 5-1 installed at the lower part of the tensioning screw 5-3 for triggering the trigger sensor 5-8. Additionally, a mounting hole is provided at the lower end of the tensioning screw 5-3, and a shackle is installed in the mounting hole for connecting the upper end of the safety wire rope 6.

[0029] In actual operation, the upper end of the safety wire rope 6 is connected to the lower end of the tensioning screw 5-3 in the condition monitoring component 5, and the safety wire rope 6 is fitted with a counterweight (such as...) after passing through the safety lock 10 installed on the car structure 1. Figure 4 As shown), furthermore, a limit plate is installed at the bottom of the car structure 1, and a rope hole for threading the safety wire rope 6 is opened on the limit plate. A wire rope sleeve is installed in the rope hole to prevent the safety wire rope 6 from being damaged by friction with the rope hole during operation. In addition, a limit member with a rope hole is also installed on the ground. Similarly, a wire rope sleeve is also provided in the above-mentioned rope hole. The lower end of the safety wire rope 6 passes through the above-mentioned wire rope sleeve and a counterweight is installed thereon.

[0030] This embodiment also includes an electrical control console installed on the truss tower. The electrical control console includes a PLC controller and a touch screen connected to the PLC controller. The PLC controller is connected to the power circuit. The control terminals of the power elements in the lifting assembly 4 are all connected to the control terminals of the PLC controller. Trigger sensors 5-8 are connected to the detection terminals of the PLC controller. The PLC controller receives the detection information from the trigger sensors 5-8. The PLC controller acquires and displays the detection information on the touch screen. After judgment, the PLC controller automatically controls the corresponding actions of each component, or sends instructions through the touch screen. After receiving the instructions, the PLC controller controls the corresponding actions of each component.

[0031] When the car structure 1 is running normally, the trigger sensor 5-8 is in contact with the trigger plate 5-1 and is in an untriggered state. At this time, under the gravity of the safety wire rope 6 and the counterweight, the compression spring 5-4 is in a compressed state.

[0032] When the car structure 1 falls due to an accident, the safety lock 10 installed on the car structure 1 locks the safety wire rope 6, and under the action of the falling car structure 1, it pulls the safety wire rope 6 downward. Under the pulling action of the safety wire rope 6, the tension screw 5-3 and the trigger plate 5-1 installed on it move downward, thereby triggering the trigger sensor 5-8. After the trigger sensor 5-8 is triggered, it transmits information to the PLC controller, and the PLC controller controls the power element in the lifting assembly 4 to stop running, thereby braking the car structure 1.

[0033] When the car structure 1 accidentally overshoots the top, the safety lock 10 locks the safety wire rope 6 and moves upward under the action of the overshooting car structure 1. At this time, the external compression force on the compression spring 5-4 decreases instantaneously, causing the compressed spring 5-4 to be released, which in turn drives the trigger plate 5-1 to move upward, realizing the reverse triggering of the trigger sensor 5-8. After the trigger sensor 5-8 is triggered, it transmits information to the PLC controller. The PLC controller controls the power element in the lifting assembly 4 to stop running, thereby braking the car structure 1.

[0034] like Figure 3As shown, the lifting assembly 4 includes a lifting mounting frame 4-2, on which a hoist 4-1 and a guide pipe mounting plate 4-5 are mounted. It also includes a wire rope guide pipe 4-4 mounted on the guide pipe mounting plate 4-5. The wire rope guide pipe 4-4 includes an arc-shaped pipe section connected to the upper end of the hoist 4-1, and a straight pipe section integrally formed at the lower end of the arc-shaped pipe section. A wire rope guide sleeve 4-6 connected to the lifting mounting frame 4-2 is mounted at the lower end of the straight pipe section. The wire rope guide sleeve 4-6 passes through a through hole in the lifting top plate 3. The control terminals of the hoist 4-1 are all connected to the control terminals of a PLC controller. Additionally, the lifting assembly 4 includes several guide pipe gaskets mounted on the guide pipe mounting plate 4-5, and guide pipe clamping plates for clamping and fixing the wire rope guide pipe 4-4 are detachably mounted on each guide pipe gasket. Furthermore, several electrical control boxes 4-3 are also mounted on the lifting mounting frame 4-2.

[0035] See further Figure 6 The aforementioned emergency stop control component 7 includes a position-adjustable trigger sensor 7-6 mounted on the truss tower. For ease of installation, a limit mounting base 7-7 is installed on the truss tower. The limit mounting base 7-7 has several horizontally extending slots. The trigger sensor 7-6 is detachably connected to the limit mounting base 7-7 by bolts and lock nuts passing through the slots.

[0036] The emergency stop control assembly 7 also includes a counterweight plate 7-1 with a through slot in the middle. The counterweight plate 7-1 passes through the top of the conduit assembly 9 and can be mounted on the ladder assembly 8, or on a limiting plate installed on the top of the conduit assembly 9. A support cylinder mechanism is installed on the counterweight plate 7-1, and the upper end of the conduit assembly 9 passes through and slides in contact with the support cylinder mechanism. Two parallel blocking screws 7-4 are installed on the top of the support cylinder mechanism, with a gap between the two blocking screws 7-4 for the safety wire rope 6 to pass through. It also includes a trigger plate structure installed on the top of the support cylinder mechanism for triggering the second trigger sensor 7-6. The second trigger sensor 7-6 is connected to the detection terminal of the PLC controller, and the PLC controller receives the detection information from the second trigger sensor 7-6.

[0037] like Figure 6As shown, the aforementioned support cylinder mechanism includes two guide plate clamps 7-2 that are butt-mounted and detachably connected to the counterweight plate 7-1. The two guide plate clamps 7-2 are detachably connected by bolts and lock nuts, and the two butt-mounted guide plate clamps 7-2 form a square tube structure that slides with the guide assembly 9. Additionally, the aforementioned trigger plate structure includes two trigger plates 7-3 that are semi-circular with their diameter edges bent downwards. The two trigger plates 7-3 are detachably connected by bolts and lock nuts. Each trigger plate 7-3 has an opening slot at its center, and the two butt-mounted opening slots form a rope-threading slot 7-5 through which the upper end of the support cylinder mechanism can pass. The inner edge of each opening slot is bent downwards and connected to the upper end of the corresponding guide plate clamp 7-2 via a blocking screw 7-4 and a lock nut. This configuration facilitates the installation, disassembly, and routine maintenance of the emergency stop control assembly 7.

[0038] In actual operation, the car structure 1 moves up and down between the ground and the top of the truss tower. When the car structure 1 is in the standby position on the ground, the counterweight column 11 is pulled to the upper end of the guide tube assembly 9 by the working wire rope 2, which is close to the emergency stop control assembly 7 but will not collide with it. When the wire rope running through the guide tube assembly 9 becomes entangled or knotted due to uneven force, abnormal vibration or impurities on it, it is easy to cause a sudden situation in the car structure 1. At this time, the car structure 1 needs to be stopped and braked. Therefore, the emergency stop control assembly 7 installed on the guide tube assembly 9 can realize the emergency stop braking of the car structure 1.

[0039] When the working wire rope 2 becomes entangled or knotted in the guide tube assembly 9, if the knotted part is too large, it will get stuck between the two blocking screws 7-4 in the emergency stop control assembly 7 during the movement, thereby driving the trigger plate 7-3 to move upward and trigger the trigger sensor 7-6. After the trigger sensor 7-6 is triggered, it transmits information to the PLC controller, which controls the hoist 4-1 in the hoisting assembly 4 to stop running, thereby performing an emergency stop braking on the car structure 1.

[0040] If the aforementioned knotted portion is insufficient to move the emergency stop control component 7 upward, then during the movement of the car structure 1 (before the car structure 1 descends to the ground), the counterweight column 11 will be driven upward by the working wire rope 2 until it collides with the top of the emergency stop control component 7, thereby pushing the trigger plate 7-3 upward to trigger the trigger sensor 7-6. After the trigger sensor 7-6 is triggered, it transmits information to the PLC controller, which then controls the hoist 4-1 in the hoisting component 4 to stop running, thereby performing an emergency stop braking on the car structure 1.

[0041] like Figure 2As shown, the roller device includes several support arms installed on the back of the car structure 1. The support arms are arranged in pairs, and each support arm is rotatably connected to two pairs of guide wheels. The two pairs of rollers clamp and hold the ladder assembly 8 and roll into contact with the ladder assembly 8.

[0042] like Figure 2 As shown, the aforementioned ladder assembly 8 includes several ladder sections 8-1 installed on the truss tower, with the ladder sections 8-1 connected end to end; to further improve system safety, the ladder assembly 8 also includes anti-fall guide rail sections 8-2 installed on each ladder section 8-1, which cooperate with other anti-fall safety locks installed on the car structure 1.

[0043] See further Figure 7 The aforementioned conduit assembly 9 includes rope-threading conduit sections 9-2 installed parallel to each ladder section 8-1. Between each adjacent rope-threading conduit section 9-2, an installation sleeve 9-1 is provided for insertion and mating with both. It also includes several installation pressure plates 9-3 installed on the corresponding ladder sections 8-1, and installation adapter plates 9-4 are installed through these plates. A conduit support 9-5 for clamping and fixing the rope-threading conduit sections 9-2 is installed on the installation adapter plate 9-4. A V-shaped groove adapted to the outer peripheral wall of the rope-threading conduit section 9-2 is provided at the inner end of the conduit support 9-5. The conduit support 9-5 and the conduit clamp 7-2 both have a V-shaped structure.

[0044] Working principle:

[0045] In actual operation, the ladder assembly 8 and the guide tube assembly 9 installed on the ladder assembly 8 are installed on the truss tower, and the lifting top plate 3 and the lifting assembly 4 are installed on the top of the truss tower. The hoist 4-1 in the lifting assembly 4 pulls / releases the working steel wire rope 2, which can realize the lifting and moving of the car structure 1. Since the car structure 1 is in rolling contact with the ladder assembly 8 through several roller devices, the guiding effect of the ladder assembly 8 can ensure that the car structure 1 can move stably along the ladder assembly 8, so that the staff and the maintenance equipment they carry are not affected by external wind, weather and other factors during the lifting and moving process, and avoid the shaking of the car structure 1 and other equipment.

[0046] Since the other end of the working wire rope 2 is threaded through the guide assembly 9, the guide assembly 9 can guide and protect the working wire rope 2, preventing the working wire rope 2 from swaying under the influence of external wind, weather and other factors, or from getting tangled or bumping with other parts of the lifting system or other parts on the moving path, thus extending the service life of the working wire rope 2.

[0047] See further Figure 4During operation, the status monitoring component 5, safety wire rope 6 and safety lock 10 work together to monitor the lifting and moving status of the car structure 1 in real time, and brake the car structure 1 when it falls or overshoots the top, thereby improving the safety of the staff. The specific principle is as described above and will not be repeated here.

[0048] In actual operation, when the wire rope running through the guide tube assembly 9 becomes entangled or knotted due to uneven stress, abnormal vibration, or impurities on it, the emergency stop control assembly 7 installed on the guide tube assembly 9 can achieve emergency braking of the car structure 1, thereby avoiding sudden situations in the lifting car structure 1 and further improving the safety of the staff. The emergency stop braking principle of the emergency stop control assembly 7 is as described above and will not be repeated here.

Claims

1. A truss tower lifting system, characterized in that: The system includes a climbing assembly (8) fixed to the truss tower, on which a guide assembly (9) is installed parallel to the climbing assembly (8); a car structure (1) is also included, on which several roller devices are installed on the back of the car structure (1), all of which are vertically connected to the climbing assembly (8); a safety lock (10) is installed inside the car structure (1), which cooperates with a safety wire rope (6) installed on the truss tower; a lifting top plate (3) is also included on the top of the truss tower and a lifting assembly (4) electrically connected to a power source; a working wire rope (2) is also included on the lifting assembly (4), one end of which is connected to the top of the car structure (1). One end is inserted into the guide tube assembly (9), and the other end is installed on the working wire rope (2). A counterweight column (11) is installed on the guide tube assembly (9) and is movably inserted into the guide tube assembly (9). It also includes an emergency stop control assembly (7) that is movably connected to the top of the guide tube assembly (9). When the counterweight column (11) moves into the emergency stop control assembly (7) under the drive of the working wire rope (2) and collides with it, it can drive the emergency stop control assembly (7) to move upward, thereby performing emergency stop braking on the car structure (1). It also includes a status monitoring assembly (5) that is movably connected to the lifting top plate (3) for installing the safety wire rope (6), which is used to monitor the operation of the car structure (1) and then brake the car structure (1).

2. The truss tower lifting system as described in claim 1, characterized in that: The status monitoring component (5) includes a monitoring mounting sleeve (5-2) pivotally connected to the lifting top plate (3). A height-adjustable trigger sensor (5-8) is installed on the outer wall of the monitoring mounting sleeve (5-2). The trigger sensor (5-8) adopts a bidirectional trigger limit switch. An elastic connection mechanism is provided in the inner cavity of the monitoring mounting sleeve (5-2) and is elastically connected to it and can trigger the trigger sensor (5-8) for installing a safety wire rope (6).

3. The truss tower lifting system as described in claim 2, characterized in that: The elastic connection mechanism includes a tensioning screw (5-3) that slides through the monitoring mounting sleeve (5-2), and a compression spring (5-4) located in the inner cavity of the monitoring mounting sleeve (5-2) is sleeved on the tensioning screw (5-3); the lower end of the compression spring (5-4) is in abutting contact with the bottom of the inner cavity of the monitoring mounting sleeve (5-2), and the upper end is in abutting contact with a locking nut (5-5) and a washer installed on the upper part of the tensioning screw (5-3); it also includes a trigger plate (5-1) installed on the lower part of the tensioning screw (5-3) for triggering a trigger sensor (5-8).

4. The truss tower lifting system as described in claim 1, characterized in that: The emergency stop control assembly (7) includes a position-adjustable trigger sensor 2 (7-6) installed on the truss tower; it also includes a counterweight plate (7-1) with a through slot in the middle, the counterweight plate (7-1) passing through the top of the conduit assembly (9) and supported on the ladder assembly (8), a support cylinder mechanism being installed on the counterweight plate (7-1), the upper end of the conduit assembly (9) passing through the support cylinder mechanism and slidingly contacting it; two parallel blocking screws (7-4) being installed on the top of the support cylinder mechanism, with a gap between the two blocking screws (7-4) for a safety wire rope (6) to pass through; and a trigger plate structure being installed on the top of the support cylinder mechanism for triggering the trigger sensor 2 (7-6).

5. The truss tower lifting system as described in claim 4, characterized in that: The support cylinder mechanism includes two guide plates (7-2) that are installed together and detachably connected to the counterweight plate (7-1). The two guide plates (7-2) are detachably connected by bolts and lock nuts. The two guide plates (7-2) that are installed together form a square tube that slides with the guide assembly (9). The trigger plate structure includes two trigger plates (7-3) that are semi-circular and have their diameter edges bent downwards. The two trigger plates (7-3) are detachably connected by bolts and lock nuts. Each trigger plate (7-3) has an opening slot at its center. The two opening slots that are installed together form a rope-passing slot (7-5) through which the upper end of the support cylinder mechanism can pass. The inner edge of each opening slot is bent downwards and connected to the upper end of the corresponding guide plate (7-2) through a blocking screw (7-4) and a lock nut.

6. The truss tower lifting system as described in claim 1, characterized in that: The ladder assembly (8) includes several ladder sections (8-1) installed on the truss tower, with the ladder sections (8-1) connected end to end; the conduit assembly (9) includes rope conduit sections (9-2) installed on each ladder section (8-1) and arranged parallel to it, with an installation sleeve (9-1) for plugging and mating between two adjacent rope conduit sections (9-2), and also includes several installation pressure plates (9-3) installed on the corresponding ladder sections (8-1) and an installation adapter plate (9-4) installed through the several installation pressure plates (9-3), with a conduit bracket (9-5) installed on the installation adapter plate (9-4) for clamping and fixing the rope conduit section (9-2), and a V-shaped groove adapted to the outer peripheral wall of the rope conduit section (9-2) opened at the inner end of the conduit bracket (9-5).

7. The truss tower lifting system as described in claim 1, characterized in that: The lifting assembly (4) includes a lifting mounting frame (4-2), on which a hoist (4-1) and a conduit mounting plate (4-5) are mounted. It also includes a wire rope conduit (4-4) mounted on the conduit mounting plate (4-5). The wire rope conduit (4-4) includes an arc-shaped pipe section that is connected to the upper end of the hoist (4-1). A straight pipe section is integrally formed at the lower end of the arc-shaped pipe section. A wire rope guide sleeve (4-6) connected to the lifting mounting frame (4-2) is installed at the lower end of the straight pipe section.

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