Elevator safety drive

Abstract

The utility model relates to a lift safety drive arrangement. Including the guide pipe subassembly, still include the lifting assembly and the safety wire rope, and the counterweight is installed to the safety wire rope who is equipped in the safety lock, and the work wire rope is wound on the lifting assembly, and one end of work wire rope is connected with the top of lifting equipment, and the other end is equipped in the guide pipe subassembly, and the counterweight post who is equipped in the guide pipe subassembly is installed on work wire rope and moves, still include the emergency stop control assembly who is equipped in the top of guide pipe subassembly and is movably connected with it, when the counterweight post moves to the emergency stop control assembly under the drive of work wire rope and collides with it, can drive the emergency stop control assembly and move upwards, still include state monitoring subassembly for monitoring the running condition of lifting equipment and then brake the lifting equipment. The utility model can drive the stable lifting movement of lifting equipment, and can avoid the possibility that the lifting equipment appears the falling or the possible of 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 safety drive device for a lifting platform. 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, there are four traditional tower climbing devices: 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 still exist. 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 may fall or overshoot the top due to unforeseen circumstances, endangering the lives of workers. Utility Model Content

[0005] This utility model provides a structurally sound safety drive device for lifting platforms to address the technical problems existing in prior art. This utility model can drive the lifting equipment to move stably, and can prevent the lifting equipment from falling or overshooting due to sudden situations, 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 safety drive device for an elevator includes a longitudinally arranged guide tube assembly; it also includes a lifting assembly and a safety wire rope installed on the top of the truss tower, the safety wire rope being threaded through a safety lock installed on the lifting equipment and having a counterweight installed thereon; a working wire rope is wound around the lifting assembly, one end of the working wire rope being connected to the top of the lifting equipment and the other end being threaded through the guide tube assembly, and a counterweight column being movably threaded through the guide tube assembly on the working wire rope; it also includes an emergency stop control assembly 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 lifting equipment; it also includes a status monitoring assembly movably connected to the truss tower for installing the safety wire rope, used to monitor the operation of the lifting equipment and thus brake the lifting equipment.

[0007] The advantages and positive effects of this utility model are as follows: This utility model provides a safety drive device for a lifting platform. Through the lifting assembly and working wire rope, the lifting equipment can be driven to move up and down. Through the coordinated operation of the status monitoring assembly, safety wire rope, and safety lock, the lifting and moving status of the lifting equipment can be monitored in real time. In the event of a fall or overshoot, the lifting equipment can be braked, ensuring the personal safety of the personnel and improving the safety of the lifting system. The guide assembly provides guidance and protection for the working wire rope, preventing it from swaying due to external factors such as wind and weather, and preventing it from entangled or colliding with other components of the lifting system or other parts of the moving path, thus extending the service life of the working wire rope. The emergency stop control assembly enables emergency braking of the lifting equipment when the wire rope in the guide assembly becomes entangled or knotted due to uneven stress, abnormal vibration, or impurities, thereby preventing sudden situations during lifting and further improving the safety of the personnel.

[0008] Preferably, the condition monitoring assembly includes a monitoring mounting sleeve pivotally connected to the top of the truss tower, a height-adjustable trigger sensor 1 is installed on the outer wall of the monitoring mounting sleeve, and 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 steel 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 resting on it, a support cylinder mechanism mounted on the counterweight plate, the upper end of the conduit assembly passing through the support cylinder mechanism and slidingly contacting it; two parallel blocking screws are 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 assembly further includes a ladder assembly installed on the truss tower, and a conduit assembly installed on the ladder assembly; it 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 and engaging between two adjacent rope-threading conduit sections, and 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 bracket 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 bracket.

[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 schematic diagram of the present invention;

[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. Roller assembly; 1-1. Roller support arm; 1-2. Climbing guide wheel; 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. Limiting mounting plate; 5- 8. Trigger Sensor 1; 6. Safety Wire Rope; 7. Emergency Stop Control Component; 7-1. Counterweight Plate; 7-2. Conduit Clamp; 7-3. Trigger Plate 2; 7-4. Blocking Screw; 7-5. Rope Threading Groove; 7-6. Trigger Sensor 2; 7-7. Limit 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 2The safety drive device for the elevator of this utility model includes a climbing ladder assembly 8, on which a longitudinally arranged guide tube assembly 9 is installed; it also includes a lifting top plate 3, a lifting assembly 4, and a safety wire rope 6 installed at the top of the truss tower. See further details. Figure 4 The safety wire rope 6 is threaded through the safety lock 10 installed on the lifting equipment and then fitted with a counterweight. The lifting equipment can be a lifting car or other spatial structure capable of accommodating workers. This embodiment also includes a status monitoring component 5 movably connected to the truss tower for installing the safety wire rope 6, used to monitor the operation of the lifting equipment and subsequently brake it.

[0024] Furthermore, a working steel wire rope 2 is wound around the aforementioned lifting component 4. One end of the working steel wire rope 2 is connected to the top of the lifting equipment, and the other end passes through the guide tube assembly 9. A counterweight column 11 is installed on the working steel wire rope 2 and is movably inserted through the guide tube assembly 9. Furthermore, a connecting pin is installed on the top of the lifting equipment, and a shackle is installed on the connecting pin. The end of the working steel wire rope 2 is connected to the aforementioned shackle. This embodiment also includes an emergency stop control component 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 component 7 under the drive of the working steel wire rope 2 and collides with it, it can drive the emergency stop control component 7 to move upward, thereby performing an emergency stop braking on the lifting equipment.

[0025] It also includes an electrical control console installed on the truss tower, which includes a PLC controller and a touch screen connected to the PLC controller, which is connected to the power supply circuit.

[0026] See further Figure 3 The aforementioned lifting assembly 4 includes a lifting mounting frame 4-2, on which a hoist 4-1 and an electrical control box 4-3, both electrically connected to a power source, are mounted. The control terminal of the hoist 4-1 is connected to the control terminal of a PLC controller. The lifting assembly 4 also includes a conduit mounting plate 4-5 mounted on the lifting mounting frame 4-2, and 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 connected to the upper port of the hoist 4-1, and a straight pipe section integrally formed at the lower port 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, passing through a through hole in the lifting top plate 3. The lifting assembly 4 also includes several conduit gaskets mounted on the conduit mounting plate 4-5, each of which is detachably fitted with a conduit clamping plate for clamping and fixing the wire rope conduit 4-4.

[0027] See further Figure 6The aforementioned emergency stop control component 7 includes a position-adjustable trigger sensor 7-6 mounted on the truss tower; specifically, a limit mounting base 7-7 is installed on the truss tower, and the limit mounting base 7-7 has several laterally extending slots. The trigger sensor 7-6 is detachably connected to the limit mounting base 7-7 via bolts and lock nuts passing through the slots. The trigger sensor 7-6 is a limit switch.

[0028] Among them, the trigger sensor 2 7-6 mentioned above is connected to the detection terminal of the PLC controller. The PLC controller receives the detection information from the trigger sensor 2 7-6, acquires and displays the detection information on the touch screen, and automatically controls the corresponding actions of each component after judgment, or sends instructions through the touch screen. After receiving the instructions, the PLC controller controls the corresponding actions of each component.

[0029] 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 rests on the ladder assembly 8, or the counterweight plate 7-1 rests on a limiting plate installed at the upper end 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 trigger sensor 7-6.

[0030] For ease of installation and routine maintenance, the support cylinder mechanism includes two guide plate clamps 7-2 that are butted together and detachably connected to the counterweight plate 7-1. The two guide plate clamps 7-2 are detachably connected by bolts and lock nuts. The guide plate clamps 7-2 have a U-shaped structure, which makes the two butted guide plate clamps 7-2 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 butted 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 clamp 7-2 through a blocking screw 7-4 and a lock nut.

[0031] In actual operation, the lifting equipment moves between the ground and the top of the truss tower. When the lifting equipment is in the initial position on the ground, the counterweight column 11 is pulled by the working wire rope 2 to the upper end of the guide tube assembly 9, which is close to the emergency stop control assembly 7 but will not collide with or contact the emergency stop control assembly 7.

[0032] When the wire rope threaded in the guide tube assembly 9 becomes entangled or knotted due to uneven stress, abnormal vibration, or impurities, it can easily cause a sudden situation in the longitudinally moving lifting equipment. In this case, the lifting equipment needs to be stopped immediately. The emergency stop control component 7 installed on the guide tube assembly 9 can achieve this: when the working wire rope 2 becomes entangled or knotted inside the guide tube assembly 9, if the knot is too large, it will get stuck between the two blocking screws 7-4 in the emergency stop control component 7 during movement. This will cause the trigger plate 7-3 to move upwards, triggering the trigger sensor 7-6. After being triggered, the trigger sensor 7-6 transmits information to the PLC control unit. The PLC controller stops the hoist 4-1 in the lifting assembly 4, thereby performing an emergency stop braking on the lifting equipment. If the knotted part is insufficient to move the emergency stop control assembly 7 upward, during the movement of the lifting equipment, before the lifting equipment 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 assembly 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 stops the hoist 4-1 in the lifting assembly 4, thereby performing an emergency stop braking on the lifting equipment.

[0033] See further Figure 5 The aforementioned status monitoring component 5 includes a monitoring mounting sleeve 5-2 pivotally connected to the top of the truss tower. A pivot connecting shaft 5-6 passes through the top of the monitoring mounting sleeve 5-2, and the component is pivotally connected to the top of the truss tower 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. The trigger sensor 5-8 is connected to the detection terminal of the PLC controller, and the PLC controller receives the detection information from the trigger sensor 5-8.

[0034] Additionally, an elastic connection mechanism is installed 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. It 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. Furthermore, 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.

[0035] like Figure 4 As shown, 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. After the safety wire rope 6 passes through the safety lock 10 installed on the lifting equipment, a counterweight is installed. Furthermore, a limit plate is installed at the bottom of the lifting equipment, and a rope hole for passing 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. After the lower end of the safety wire rope 6 passes through the above-mentioned wire rope sleeve, a counterweight is installed.

[0036] When the lifting equipment 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.

[0037] When the lifting equipment falls due to an accident, the safety lock 10 installed on the lifting equipment locks the safety wire rope 6 and pulls the safety wire rope 6 downward under the action of the falling lifting equipment. 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. The PLC controller controls the hoist 4-1 in the lifting assembly 4 to stop running, thereby braking the lifting equipment.

[0038] When the lifting equipment accidentally overshoots the top, the safety lock 10 locks the safety wire rope 6 and moves upward under the action of the overshooting lifting equipment. At this time, the external force pressing the compression spring 5-4 decreases instantaneously, the compressed compression spring 5-4 is released and drives the trigger plate 5-1 to move upward, which in turn triggers the trigger sensor 5-8 in the reverse direction. After the trigger sensor 5-8 is triggered, it transmits the information to the PLC controller. The PLC controller controls the hoist 4-1 in the lifting assembly 4 to stop running, thereby braking the lifting equipment.

[0039] See further Figure 2 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. Each ladder section 8-1 is equipped with a fall arrestor guide section 8-2, and a fall arrestor safety lock that cooperates with the aforementioned fall arrestor guide section 8-2 can be installed on the lifting equipment.

[0040] See further Figure 7 The 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, there is an installation sleeve 9-1 that engages with it. It also includes several installation pressure plates 9-3 installed on the corresponding ladder sections 8-1, and an installation adapter plate 9-4 is installed via the installation pressure plates 9-3. 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 formed at the inner end of the conduit support 9-5. The conduit support 9-5 has a Z-shaped structure.

[0041] like Figure 2 As shown, in order to ensure the stability of the lifting and moving of the lifting equipment, a number of pairs of roller assemblies 1 are installed on the lifting equipment. The roller assembly 1 includes a number of roller support arms 1-1 installed on the back of the lifting equipment. The roller support arms 1-1 are arranged in pairs. Each roller support arm 1-1 is rotatably connected to a pair of climbing guide wheels 1-2. The pair of climbing guide wheels 1-2 clamps the climbing ladder assembly 8 and rolls in contact with the climbing ladder assembly 8.

[0042] Working principle:

[0043] In actual operation, the ladder assembly 8 and the guide tube assembly 9 installed on the ladder assembly 8 are mounted on the truss tower, and the lifting top plate 3 and lifting assembly 4 are mounted on the top of the truss tower. The hoist 4-1 in the lifting assembly 4 pulls / releases the working wire rope 2, which can realize the lifting and moving of the lifting equipment. Since the lifting equipment is in rolling contact with the ladder assembly 8 through several roller devices 1, the guide effect of the ladder assembly 8 can ensure that the lifting equipment can move stably along the ladder assembly 8, so that the workers and the maintenance devices they carry are not affected by external wind, weather and other factors during the lifting and moving process, and avoid the shaking of the lifting equipment and other equipment. Since the other end of the working wire rope 2 is passed through the guide tube assembly 9, the guide tube assembly 9 can guide and protect the working wire rope 2, so as to prevent the working wire rope 2 from shaking or getting entangled or bumping with other parts of the lifting system or other parts on the moving path under the influence of external wind, weather and other factors, thus extending the service life of the working wire rope 2.

[0044] Referring further to the lifting component 4 in the figure, during operation, the status monitoring component 5, the safety wire rope 6, and the safety lock 10 work together to monitor the lifting and moving status of the lifting equipment in real time, and brake the lifting equipment 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.

[0045] In actual operation, when the wire rope running through the conduit assembly 9 becomes entangled or knotted due to uneven stress, abnormal vibration, or impurities on it, the emergency stop control component 7 installed on the conduit assembly 9 can realize the emergency stop braking of the lifting equipment, thereby avoiding sudden situations in the lifting equipment and further improving the safety of the staff. The emergency stop braking principle of the emergency stop control component 7 is as described above and will not be repeated here.

Claims

1. A safety drive device for an elevator, characterized in that: The system includes a longitudinally arranged guide tube assembly (9); a lifting assembly (4) and a safety wire rope (6) installed at the top of the truss tower. The safety wire rope (6) is threaded through a safety lock (10) installed on the lifting equipment and then fitted with a counterweight. A working wire rope (2) is wound around the lifting assembly (4). One end of the working wire rope (2) is connected to the top of the lifting equipment, and the other end is threaded through the guide tube assembly (9). A counterweight column (1) is installed on the working wire rope (2) and is movably threaded through the guide tube assembly (9). 1); It also includes an emergency stop control assembly (7) that is movably connected to the top of the conduit assembly (9). When the counterweight column (11) moves into the emergency stop control assembly (7) and collides with it under the drive of the working wire rope (2), it can drive the emergency stop control assembly (7) to move upward, thereby braking the lifting equipment; It also includes a status monitoring assembly (5) that is movably connected to the truss tower for installing the safety wire rope (6), for monitoring the operation of the lifting equipment and braking the lifting equipment.

2. The elevator safety drive device as described in claim 1, characterized in that: The status monitoring component (5) includes a monitoring installation sleeve (5-2) pivotally connected to the top of the truss tower. A height-adjustable trigger sensor (5-8) is installed on the outer wall of the monitoring installation 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 installation 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 elevator safety drive device 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 elevator safety drive device as described in claim 1, characterized in that: The emergency stop control assembly (7) includes a position-adjustable trigger sensor 2 (7-6) mounted 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 resting on it, a support cylinder mechanism being mounted 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 mounted 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; and a trigger plate structure being mounted on the top of the support cylinder mechanism for triggering the trigger sensor 2 (7-6).

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

7. The elevator safety drive device 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.

Images