CN116605740B - Building fire control lift rescue platform - Google Patents

Abstract

The invention provides a building fire-fighting lifting rescue platform which comprises a fixed frame, a turnover connecting rod group, a lifting rope wheel assembly and a lifting driving mechanism, wherein an upper fixed frame Top is fixed on a roof, a lower fixed frame Bot is fixed on a floor, the turnover connecting rod group is used for connecting the unfolded fixed frame and the turnover frame, an upper guide wheel and a rope fixing wheel of the lifting rope wheel assembly are respectively arranged on the outer side of a rope wheel support at the upper part through fixed shafts, a driving wheel is arranged in a bearing seat on the outer side of the rope wheel support at the lower part through a driving rotating shaft, a gear box output shaft of the lifting driving mechanism is provided with two parallel transmission shafts and is respectively provided with a spline sleeve, the outer end of the driving rotating shaft is fixedly provided with a spline shaft and is matched and sleeved with the spline sleeve, lifting buckles are fixedly arranged on two sides of the upper part of a lift car, and a stop part for dragging the lift car is arranged on the annular lifting rope. The invention ensures that the fire rescue work is more efficient, quick and safe, has superior hiding performance, improves the rescue effect, and reduces the influence on the appearance of the building and the window function.

Description

Building fire control lift rescue platform

Technical Field

The invention belongs to the technical field of load hanging devices for fire protection, and particularly relates to a lifting transportation rescue platform for building fire protection.

Background

The existing building fire rescue platform mainly comprises the following technologies: 1. ladder rescue platform: this is a common fire rescue apparatus, typically consisting of a retractable ladder and platform. The ladder may be manually or electrically telescopic to reach buildings of different heights. The platform provides a stable working area for rescue workers to operate. However, the height and telescoping of the ladder limits its range of application and may present stability and safety issues during use. 2. Fire control well rescue platform: such platforms provide rescue pathways by pre-constructing the fire well. A vertical or inclined ladder is arranged in the hoistway for fire fighters to enter and rescue. Such platforms may cover multiple floors of a building, but the location and specifications of the hoistway need to be considered in advance in building design and construction. Furthermore, hoistway platforms may occupy a significant amount of space when not in use. 3. Lifting platform: a lift platform is a movable device, typically consisting of a platform and a vertical lift mechanism. The platform can be manually or electrically lifted to reach different heights of the building. The lifting platform is suitable for various emergency rescue scenes, but needs sufficient operators to control and operate, and needs longer setting and dismantling time. 4. An air rescue system: this is a relatively new technology for building fire rescue using unmanned aerial vehicles or aircraft. The aircrafts are provided with rescue equipment such as cameras, lifting hooks or suckers, and can hover in the air or fall on a building to perform rescue operation. The air rescue system has the advantages of rapid deployment and flexibility, and can be suitable for high-rise buildings or difficult-to-reach areas, but the operation and control of the air rescue system need professional skills and permissions.

The existing building fire rescue platforms have advantages and disadvantages, but common problems exist. For example, complex operations, inefficient rescue, reliance on external equipment or structures, space occupation, or impacting building appearance, etc. These problems limit the efficiency and flexibility of rescue operations and thus there is a continuing need for improvements and innovations to provide a safer, more efficient and reliable building fire rescue platform. Specifically, existing building fire rescue platforms generally employ conventional rescue equipment, such as ladders, fire hoistways, or lifting platforms. These devices can provide rescue pathways in emergency situations, but have some problems and disadvantages. For example, conventional rescue equipment typically requires manual deployment and setup, and firefighters take a long time to erect, resulting in inefficient rescue. In emergency situations, time is critical and delayed rescue time may pose a greater threat to trapped personnel. Some rescue equipment needs to be built up depending on external supports or building structures, such as ladders, which need to be placed on stable supports, and fire hoistways which need to be pre-built. This limits the applicability and portability of the rescue arrangement. Some rescue equipment requires a large amount of space, such as a long ladder or a fire hoistway. This may limit the space available for the building, especially in some small or limited sites. In addition, the erection of some rescue equipment may damage the appearance of the building, affecting the aesthetics of the building. Traditional rescue equipment is complex to operate and needs professional operators to operate. In addition, some devices may have potential safety hazards in the use process, such as stability of a ladder, protection of a hoistway, and the like, and accidents may occur in the rescue process.

Therefore, the existing building fire rescue platform still needs further improvement and optimization in practical application to solve the problems and defects existing in the prior art.

Disclosure of Invention

Aiming at the defects and problems in the prior art, the invention provides a building fire-fighting lifting rescue platform which is used for improving the building fire-fighting rescue efficiency, optimizing the space utilization, ensuring superior hiding performance, simplifying the operation and enhancing the safety in a circulating lifting mode.

The invention solves the technical problems as follows: the utility model provides a building fire control lift rescue platform, including mount, roll-over stand, upset link group, promotion rope sheave subassembly and promotion actuating mechanism, including upper and lower two mount tops and Bot, upper mount Top is fixed in the roof and is located the upside of upper fire control window, and lower mount Bot is fixed in the bottom of the building and is located the downside of lower floor fire control window, the roll-over stand includes swing frame and rope sheave support, is provided with the rope sheave support respectively in the both sides of swing frame, and the inboard of every side rope sheave support is provided with the axle bed respectively, installs the movable pin axle respectively in the both sides axle bed, and upset link group is used for connecting mount and roll-over stand after the expansion, promotion rope sheave subassembly includes upper guide wheel, drive wheel and annular lifting rope, and upper guide wheel and fixed rope sheave are installed in the rope sheave support outside of upper portion respectively through the fixed axle, and the drive wheel is installed in the bearing frame outside the rope sheave of lower part support through the drive pivot, the lifting driving mechanism comprises a car body, an engine, a gear box, a transmission shaft, a car and a hanging buckle, wherein the engine is fixedly arranged at the rear side of the car body, the output shaft of the engine is in transmission connection with the input shaft of the gear box, the output shaft of the gear box is two parallel transmission shafts, the tail end of each transmission shaft is fixedly provided with a spline sleeve respectively, meanwhile, the outer end of a driving rotating shaft of the driving wheel is fixedly provided with a spline shaft which can be matched and sleeved with the spline sleeve, the car is arranged at the upper part of the front side of the car body, the hanging buckle is fixed at the two sides of the upper part of the car body, the front side of the car is provided with an access port, the annular hanging rope is provided with a stop part, when the annular hanging rope carries the stop part to move upwards, the stop part is used for supporting the hanging buckle, thereby lifting the lift car to move upwards; the front side of the car is also provided with a wall-following mechanism for improving the stability of the car, the wall-following mechanism comprises fixed seats fixed on two sides of the car, T-shaped shafts are respectively sleeved in the fixed seats, two ends of each T-shaped shaft are respectively provided with a transverse roller, or vertical tracks matched with the transverse rollers are fixed on the wall and positioned on two sides of a fire window.

The fixing frame comprises a frame and fixing rails, the back of the frame is fixed on a wall body through gaskets and expansion wires, the fixing rails are compounded on two sides of the frame, an inner cavity of each fixing rail is provided with a C-shaped rail groove, an upper fixing pin shaft and a lower fixing pin shaft are respectively arranged in the middle part and the lower part of each C-shaped rail groove, and vertical springs are respectively sleeved on the upper sides of the two fixing pin shafts and located in the C-shaped rail grooves in a matching mode.

The turnover connecting rod group comprises an upper swing rod, a lower swing rod, an upper traction rod, a lower traction rod, an inner sliding block and an elastic pin, wherein the rear ends of the upper swing rod and the lower swing rod are respectively hinged to the upper fixed pin shaft and the lower fixed pin shaft, the front ends of the upper swing rod and the lower swing rod are respectively hinged to corresponding pin shafts, the front ends of the upper swing rod and the lower swing rod are respectively compounded with a track plate, each track plate is respectively provided with a sliding groove, sliding shafts are respectively sleeved in each sliding groove, the upper ends of the upper traction rod and the lower traction rod are provided with the inner sliding block through the elastic pin, the inner sliding block is matched and sleeved in the C-shaped track grooves, the inner sliding block is supported on the upper side of the vertical spring, and the front ends of the upper traction rod and the lower traction rod are respectively hinged to the corresponding sliding shafts.

The elastic pin comprises a tubular pin shaft, a lock tongue is sleeved in the pipe cavity of the elastic pin, and a top spring is sleeved on the inner side of the lock tongue, and in a natural state, the top spring pushes the lock tongue outwards so that the lock tongue can enter the lower positioning hole or the upper positioning hole.

The outer side of the driving wheel is fixedly provided with a composite wheel, the outer side of a rope wheel support at the lower part is provided with a lower guide wheel through a fixed shaft, the outer sides of the composite wheel and the lower guide wheel are respectively sleeved with annular speed limiting ropes, the left and right sides of the annular speed limiting ropes are respectively provided with damping mechanisms, and in order to improve the stability of each rope wheel, the outer sides of the rope wheel support at the upper part and the lower part are respectively fixedly provided with an axle box, the axle box is axially used for supporting the outer end of each fixed shaft, and the axle box is simultaneously covered on the outer sides of each rope wheel.

The damping mechanism for limiting the speed by the annular speed limiting rope adopts a rubber wheel or a centrifugal wheel.

The damping mechanism adopts an automatic damping mechanism and comprises a main frame, auxiliary frames, rope pressing wheels, a starting rod and a traction rope, wherein a shaft hole is formed in the center of the main frame and a main shaft is arranged on a rope wheel support at the center of an annular speed limiting rope, so that the main frame can rotate along the main shaft, the auxiliary frames are respectively matched and arranged at symmetrical positions of the left side and the right side of the main frame, a pair of rope pressing wheels are respectively arranged on the inner side of each auxiliary frame, the annular speed limiting rope is sleeved in each pair of rope pressing wheels, auxiliary shafts are respectively fixed in the middle of the outer side of each auxiliary frame, and are respectively matched and sleeved in the corresponding shaft holes on the two sides of the main frame; and a starting rod is respectively and fixedly extended outwards from one end or two ends of the main frame, an auxiliary tension spring is connected to the starting rod, and a traction rope is fixedly connected to the tail end of the starting rod.

The upper traction rod and the lower traction rod are additionally provided with an ejection control mechanism, the mechanism comprises an electromagnetic spring pin, a lower positioning hole and an upper positioning hole, the lower positioning hole is formed in the lower portion of the inner wall of the C-shaped track groove, the upper positioning hole is formed in the upper portion of the inner wall of the C-shaped track groove, the electromagnetic spring pin is fixed to the outer side of the lower positioning hole and comprises a shell and an electromagnet, a pin rod is sleeved in an inner cavity of the shell and is fixedly pressed by an internal pressure spring to retract inwards, but after the electromagnet is electrified, the electromagnet attracts the pin rod, the pin rod outwards ejects against the elasticity of the internal pressure spring, after the pin rod is outwards drawn out, a lock tongue of the elastic pin can be pushed to separate from the lower positioning hole, and further the inner sliding block is upwards pushed by a vertical spring until the inner sliding block is located at the position of the upper positioning hole, and the lock tongue of the elastic pin stretches out from the upper positioning hole to be in a locking state.

The upper part of the fixed frame is also fixed with a composite fixed seat, the upper end of the composite fixed seat is hinged with a protective cover through a rotating shaft, and the protective cover covers the outer side of the roll-over stand at the upper part or the lower part in a non-emergency state.

Further, a protection groove can be fixed on the wall body positioned at two sides of the fire window and used for sleeving the annular lifting rope.

The invention has the beneficial effects that: the design of the building fire-fighting lifting rescue platform enables fire-fighting rescue work to be more efficient, rapid and safe. The novel rescue device is simple in structure, high in stability and excellent in hiding performance, not only improves rescue effect, but also reduces influence on building appearance and window functions. The innovative design brings important technical breakthrough to the field of building fire rescue, is expected to play an important role in practical application, and ensures the life and property safety of people.

1. The structural stability is high under the service condition: the platform does not need a building power supply, the external power supply ensures the power supply reliability, the outer frame is unfolded when required to be folded at ordinary times, the car is hidden in the equipment room, the car is taken out along with the car body in an emergency state, and the lifting rope can be positioned at the gravity center of the car to ensure the stability of the car. The upper limit ends of the annular lifting ropes are pulled, so that the lift car is relatively stable, and the lift car can be prevented from swinging by the wall-based transverse roller.

2. Rescue efficiency improves: the building fire-fighting lifting rescue platform can be rapidly unfolded, and rescue of trapped people is achieved through up-and-down movement of the annular lifting rope. Compared with traditional fire rescue equipment, such as a ladder or a fire hoistway, the platform can reach the position of trapped personnel more rapidly, so that the rescue efficiency is improved, the rescue time is shortened, the casualties risk is reduced, and the platform is not limited by the height of a floor.

3. Space utilization optimization: in a non-emergency state, the lifting rescue platform is in a folded state, and does not occupy a large amount of space. Only when rescue is needed, the roll-over stand is unfolded and the drive mechanism is started, and the car is moved. Thus, the space utilization can be optimized to the greatest extent, and the appearance of the building and the window function are not affected.

4. The hiding performance is excellent: under the folded state, the annular lifting rope can be hidden in the wall decorative groove, and the fixing frame is also positioned at the upper side and the lower side of the fire window. Therefore, the lifting rescue platform has no influence on the appearance of the building in a non-emergency state, and the aesthetic degree of the building is not damaged.

5. The structure is simple and reliable: the lifting rescue platform consists of a fixed frame, a roll-over stand, a roll-over connecting rod group, a lifting rope pulley assembly, a lifting driving mechanism, an automatic damping mechanism, a pop-up control mechanism and the like. The components have simple structure and reliable operation, and can effectively perform lifting and rescue operations.

6. Multifunctional application: the lifting rescue platform is suitable for firefighting rescue of various buildings, and is not limited by the height of the buildings. The device can be used for rescuing trapped personnel, and can also be used for the work of material transportation, equipment maintenance and the like under other emergency conditions. The multifunctional applicability of the platform enables the platform to have wide applicability in different scenes.

Drawings

Fig. 1 is a schematic view of the lifting rescue platform in a folded state.

Fig. 2 is a schematic view of the unfolded state of fig. 1.

Fig. 3 is a side view of fig. 2.

Fig. 4 is a schematic view of a connection structure of the roll-over stand of the fixing frame in fig. 3.

Fig. 5 is a schematic view of the unfolded and folded state of fig. 4.

FIG. 6 is a schematic view of a damping mechanism in use.

Fig. 7 is a schematic perspective view of the damping mechanism of fig. 6.

Fig. 8 is a schematic perspective view of the lift drive mechanism.

Fig. 9 is an enlarged schematic view of the portion a in fig. 4.

FIG. 10 is a schematic view of the wall-mounted mechanism.

Reference numerals in the drawings: the pulley comprises a fixed frame 1, a frame 11, a fixed rail 12, a C-shaped rail groove 13, a vertical spring 14, an upper fixed pin 15, a lower fixed pin 16, a roll-over stand 2, a swing frame 21, a sheave support 22, a shaft seat 23, a movable pin 24, a roll-over linkage 3, an upper swing link 31, a lower swing link 32, an upper traction rod 33, a lower traction rod 34, an inner slide 35, an elastic pin 36, a rail plate 37, a sliding groove 38, a sliding shaft 39, a hoisting sheave assembly 4, an upper guide wheel 41, a driving wheel 42, an annular lifting rope 43, a fixed sheave 44, a composite wheel 45, a lower guide wheel 46, an annular speed limiting rope 47, an axle box 48, a hoisting driving mechanism 5, a car body 51, an engine 52, a gear box 53, a transmission shaft 54, a spline housing 55, a spline shaft 56, a car 57, a lifting buckle 58, an armrest 59, an automatic damping mechanism 6, a main frame 61, a main shaft 62, an auxiliary frame 63, a rope pressing sheave 64, an auxiliary shaft 65, a starting lever 66, an auxiliary tension spring 67, a traction rope 68, an electromagnetic spring pin 71, a lower positioning hole 72, an upper positioning hole 73, a composite 74, a protective cover 75, a rotating shaft 75, a fixed seat 8, a transverse wall 81, a fixed seat 81, a transverse wall mechanism and a transverse wall 83.

Description of the embodiments

The invention will be further described with reference to the drawings and examples.

Example 1: a building fire-fighting lifting rescue platform shown in fig. 1 and 2, which is in a folded state shown in fig. 1 for a long time in a non-emergency state and is unfolded in a fire-fighting rescue state shown in fig. 2. The lifting rescue platform is mainly improved aiming at the problem that the existing building fire-fighting rescue equipment cannot timely rescue in place, is simple in structure, does not influence the appearance of a building in a hidden state, and only in an emergency state, carries a lifting driving mechanism with a standby car body to work in a butt joint mode with a bottom roll-over stand. Fig. 1-3 show that the lifting rescue platform mainly comprises a fixed frame 1, a turnover frame 2, a turnover connecting rod group 3, a lifting rope wheel assembly 4, a lifting driving mechanism 5, an automatic damping mechanism 6, a pop-up control mechanism 7 and the like.

As shown in fig. 1, the upper and lower fixing frames Top and Bot, the upper fixing frame Top is fixed on the roof and located at the upper side of the uppermost fire window, and the lower fixing frame Bot is fixed on the floor and located at the lower side of the lowermost fire window. And the annular lifting ropes 43 on the two sides are attached to the wall surfaces on the two sides of the fire window of the interlayer in parallel (can be hidden in the decorative groove of the wall surface). The whole lifting rescue platform does not influence the building appearance and the window function. As shown in fig. 2, after the roll-over frames located at the outer sides of the upper and lower fixing frames are respectively unfolded, each roll-over frame is respectively protruded outwards to reserve the space occupied by the car 57 when moving up and down, the car 57 moves up and down along with the annular lifting ropes 43 to any corresponding position of the fire window, so that people on the floor can escape from the fire window into the car 57, and the lift driving mechanism drives the car 57 to move upwards or downwards when rotating to drive the annular lifting ropes, thereby rescuing trapped people.

As shown in fig. 2 and 4, the fixing frame 1 comprises a frame 11, a fixed rail 12, a C-shaped rail groove 13, a vertical spring 14, an upper fixed pin 15, a lower fixed pin 16 and the like, wherein the back of the frame 11 is fixed on a wall body through a gasket and an expansion wire, the fixed rail 12 is compounded on two sides of the frame 11, the inner cavity of the fixed rail 12 is provided with the C-shaped rail groove 13, the middle part and the lower part of the C-shaped rail groove 13 are respectively provided with the upper fixed pin 15 and the lower fixed pin 16, and the vertical spring 14 is respectively sleeved on the upper sides of the two fixed pins and positioned in the C-shaped rail groove 13 in a matching manner.

The roll-over stand 2 shown in fig. 4 and 9 comprises a swing frame 21, rope wheel supports 22, shaft seats 23 and movable pin shafts 24, wherein the swing frame 21 is a rectangular frame, two side edges of the swing frame are also provided with reinforced auxiliary rods, the rope wheel supports 22 are respectively arranged on two sides of the swing frame 21, the inner side of each rope wheel support 22 is also respectively provided with a shaft seat 23, and the movable pin shafts 24 are respectively arranged on the shaft seats 23 on the two sides.

As shown in fig. 4 and 5, the turnover linkage 3 includes an upper swing link 31, a lower swing link 32, an upper traction link 33, a lower traction link 34, an inner slide 35 and an elastic pin 36, wherein rear ends of the upper swing link 31 and the lower swing link 32 are respectively hinged to the upper fixed pin 15 and the lower fixed pin 16, and front ends of the upper swing link 31 and the lower swing link 32 are respectively hinged to the corresponding pin 24.

The front ends of the upper swing rod 31 and the lower swing rod 32 are respectively compounded with a track plate 37, each track plate 37 is respectively provided with a sliding groove 38, and each sliding groove is respectively sleeved with a sliding shaft 39.

The upper end of the upper traction rod 33 is provided with an inner slide 35 through an elastic pin 36, the inner slide 35 is matched and sleeved in the C-shaped track groove 13, the inner slide 35 is supported on the upper side of the vertical spring 14, and the front end of the upper traction rod 33 is hinged on a slide shaft 39 at the front end of the upper swing rod 31.

The upper end of the lower traction rod 34 is provided with an inner slide 35 through an elastic pin 36, the inner slide 35 is matched and sleeved in the C-shaped track groove 13, the inner slide 35 is supported on the upper side of the vertical spring 14, and the front end of the lower traction rod 34 is hinged on a slide shaft 39 at the front end of the lower swing rod 32.

The elastic pin 36 comprises a tubular pin shaft, a lock tongue is sleeved in the pipe cavity of the pin shaft, a top spring is sleeved on the inner side of the lock tongue, and the top spring pushes the lock tongue outwards in a natural state so that the lock tongue can enter the lower positioning hole 72 or the upper positioning hole 73.

As shown in fig. 2 and 3, the hoisting sheave assembly 4 comprises an upper guide wheel 41, a driving wheel 42, an endless hoist rope 43, a fixed sheave 44, a compound wheel 45, a lower guide wheel 46, and an endless speed limit rope 47, and an axle box 48, etc. The upper guide wheel 41 and the fixed sheave 44 are respectively mounted on the outer side of the upper sheave support 22 through fixed shafts, and the driving wheel 42 is mounted in a bearing seat on the outer side of the lower sheave support 22 through driving shafts. An annular lifting rope 43 is respectively sleeved on the outer sides of the upper guide wheel 41, the rope fixing wheel 44 and the driving wheel 42, and the driving wheel 42 can be driven to rotate by a driving mechanism.

Meanwhile, a compound wheel 45 is fixed on the outer side of the driving wheel 42, a lower guide wheel 46 is arranged on the outer side of the rope wheel support 22 at the lower part through a fixed shaft, annular speed limiting ropes 47 are respectively sleeved on the outer sides of the compound wheel 45 and the lower guide wheel 46, and damping mechanisms are respectively arranged on the left and right annular speed limiting ropes 47. To improve the stability of each sheave, axle boxes 48 are fixed to the outer sides of the upper and lower sheave holders 22, respectively, and the axial direction 48 is used to support the outer ends of the fixed shafts while covering the outer sides of the sheave holders.

As shown in fig. 3 and 8, the lift drive mechanism 5 includes a vehicle body 51, an engine 52, a gear box 53, a propeller shaft 54, a spline housing 55, a spline shaft 56, a car 57, a hoist 58, and the like. The rear side of the vehicle body 51 is fixedly provided with an engine 52, an output shaft of the engine 52 is in transmission connection with an input shaft of a gear box 53, an output shaft of the gear box 53 is provided with two parallel transmission shafts 54, the tail end of each transmission shaft is fixedly provided with a spline housing 55 respectively, and meanwhile, the outer end of a driving rotating shaft of the driving wheel 42 is fixedly provided with a spline shaft 56, and the spline shaft 56 can be matched and sleeved with the spline housing 55. A car 57 is mounted on the upper portion of the front side of the car body 51, a hanging buckle 58 is fixed on both sides of the upper portion of the car 57, an access port is provided on the front side of the car 57, a stopper member (e.g., a hook) is provided on the endless hanging rope 43, and when the endless hanging rope 43 moves upward with the stopper member, the stopper member is used for supporting the hanging buckle 58, thereby lifting the car 57 upward.

The damping mechanism may employ any existing damping means including, but not limited to, rubber wheels, centrifugal wheels, and the like. Fig. 6 and 7 provide an automatic damping mechanism 6, which mainly includes a main frame 61, a main shaft 62, an auxiliary frame 63, a sheave 64, an auxiliary shaft 65, a start lever 66, an auxiliary tension spring 67, and a traction rope 68. Wherein, the center of the main frame 61 is provided with a shaft hole and is provided with a main shaft 62, and the main shaft 62 is fixed on a rope wheel support seat at the center of the annular speed limiting rope 47, so that the main frame 61 can rotate along the main shaft 62. Auxiliary frames 63 are respectively matched and arranged at the symmetrical positions of the left side and the right side of the main frame 61, a pair of rope pressing wheels 64 are respectively arranged at the inner side of each auxiliary frame 63, and the annular speed limiting rope 47 is sleeved in each pair of rope pressing wheels 64. An auxiliary shaft 65 is fixed at the middle part of the outer side of each auxiliary frame 63, and each auxiliary shaft 65 is respectively matched and sleeved in corresponding shaft holes at two sides of the main frame 61. A starting rod 66 is fixed to one end or two ends of the main frame 61 in an outward extending manner, an auxiliary tension spring 67 is connected to the starting rod 66, and a traction rope 68 is fixedly connected to the tail end of the starting rod 66.

The person in the car 57 pulls the traction rope 68 downward to accelerate the speed reduction of the annular speed limiting rope 47, or a composite seat is sleeved at the bottom in the car 57, a slide way is arranged between the composite seat and the inner wall of the car 57 and can slide, the traction rope is fixed on the composite seat, and when the composite seat is subjected to the increase of gravity, the speed reduction effect of the annular speed limiting rope 47 is improved by traction of the traction rope.

Further, an ejection control mechanism 7 including an electromagnetic spring pin 71, a lower positioning hole 72, and an upper positioning hole 73 may be added to the upper and lower drawbars 33 and 34. Lower positioning holes 72 are respectively arranged at the lower part of the inner wall of the C-shaped track groove, and upper positioning holes 73 are respectively arranged at the upper part of the inner wall of the C-shaped track groove. When the inner slides at the rear ends of the upper and lower drawbars are respectively located at the lower positions, the locking tongues of the corresponding elastic pins 36 are respectively supported in the lower positioning holes 72, and when the inner slides at the rear ends of the upper and lower drawbars are respectively located at the upper positions, the locking tongues of the corresponding elastic pins 36 are respectively supported in the upper positioning holes 73.

The electromagnetic spring pin 71 is fixed on the outer side of the lower positioning hole 72, the electromagnetic spring pin 71 comprises a shell and an electromagnet, a pin rod is sleeved in the inner cavity of the shell and is fixedly pressed by the inner pressure spring to retract inwards, but after the electromagnet is electrified, the electromagnet attracts the pin rod to overcome the elasticity of the inner pressure spring so that the pin rod is outwards popped out, when the pin rod is outwards popped out, the lock tongue of the elastic pin 36 can be pushed to separate from the lower positioning hole 72, and then the inner slide 35 is pushed upwards by the vertical spring 14 until the inner slide is positioned at the position of the upper positioning hole 73, and the lock tongue of the elastic pin 36 stretches out from the upper positioning hole 73 to be in a locking state.

A composite fixing seat 74 is also fixed on the upper part of the fixing frame 1, a protective cover 75 is hinged on the upper end of the composite fixing seat 74 through a rotating shaft 76, and the protective cover 75 covers the outer side of the upper or lower turnover frame in a non-emergency state. In an emergency, after each electromagnetic lock is opened, the rear end inner slide of each traction rod is respectively jacked up by the corresponding vertical spring 14, so that the roll-over stand 2 is unfolded, and when the roll-over stand 2 is unfolded, the protective cover 75 can be pushed to outwards and upwards roll over. In the folded state, as shown in fig. 1, and in the unfolded state, as shown in fig. 2 and 3.

Further, a protection groove may be fixed on the wall body at both sides of the fire window for sleeving the annular hanging rope 43.

In the above-mentioned scheme, when the folding operation is performed, the inner end of each traction rod is pressed downwards, so that each inner slider moves downwards to compress the corresponding vertical spring 14, when the inner end of each traction rod slides downwards, the sliding shaft at the outer end of each traction rod also slides forwards in the corresponding sliding groove in a matched manner, and when the inner slider at the inner end of each traction rod slides to the lower positioning hole 72 respectively, the lock tongue of the corresponding elastic pin is popped up and supported in the lower positioning hole 72. As in fig. 5 for both states (1) and (2). In the state (2), as each vertical spring 14 is compressed, once the pin rod of the electromagnetic spring pin 71 is pushed outwards, the elastic pin lock tongue at the corresponding position can be pushed inwards, so that the elastic pin lock tongue is separated from the lower positioning hole 72, the inner end of each traction rod is ejected upwards, and the roll-over stand is unfolded to be in the state (1). In the state (1), the elastic pin at the inner end of each traction rod is popped up and is positioned in the upper positioning hole 73, so as to achieve the fixed traction effect. The roll-over stand 2 located at the lower part (i.e., bot) may be constructed as a traction bar, or may be constructed as a traction bar, but may be directly supported on a base of the bottom surface after being unfolded, as shown in fig. 2 and 3.

The car body 51 may be remotely controlled or manually pushed, for example, by fixing a handrail 59 on the rear side of the car body 51 for pushing the car body into the front side of the lower roll-over stand and bringing the car closer as much as possible. After the hanging hook of the annular hanging rope 43 is fixedly connected with the hanging buckle 58 at the upper part of the lift car 57, the driving shafts 54 at the two sides synchronously rotate to drive the driving wheels 42 at the two sides to rotate, so that the annular hanging rope 43 is driven to rotate to lift or descend the lift car 57.

As shown in fig. 10, a wall-engaging mechanism 8 may be provided on the front side of the car 57 to improve the stability of the car 57. As can be seen from fig. 10, the wall-following mechanism 8 includes fixing bases 81 fixed on two sides of the car, and each fixing base 81 is internally sleeved with an inherent T-shaped shaft 82, and two ends of each T-shaped shaft 82 are respectively provided with a transverse roller 83, or vertical rails (or no vertical rail) matched with the transverse roller 83 are fixed on the wall and positioned on two sides of the fire window.

Therefore, when the car 57 is lifted or dropped, the lateral rollers 83 can be supported by the edge regions on both sides of the fire window, and the stability of the car conveyance can be ensured by the supporting action of the wall body. If vertical rails are further fixed to both sides of the fire window, the rails on both sides only need to have a function of positioning the transverse roller 83, and for example, fixed angle iron parts can be used for the rails on both sides.

The technical scheme describes a building fire-fighting lifting rescue platform which is in a folded state in a non-emergency state and is unfolded to be in a working state in fire-fighting rescue. The application premise of the building fire-fighting lifting rescue platform is to solve the problem that the existing building fire-fighting rescue equipment cannot rescue in time. The platform is characterized in that the appearance of the building is not affected under the folding state, and the standby car body is only in butt joint with the bottom roll-over stand by carrying the lifting driving mechanism under the emergency state, so that the rescue task is realized.

In the implementation (in the non-emergency state), the folding operation is first performed. By pressing down on the inner end of each drawbar, each inner slide is caused to move downwardly and compress the corresponding vertical spring 14. When the inner end of the traction rod slides, the sliding shaft at the outer end of the traction rod also slides forward in a matched manner in the corresponding sliding groove. When the inner slide of the inner end of each of the traction rods is slid to the lower positioning hole 72, respectively, the tongue of the corresponding elastic pin 36 is spring-supported in the lower positioning hole 72, and is in a folded state (as in (1) and (2) states in fig. 5).

Then, in the emergency state, the electromagnetic latch 71 is activated, so that the pin rod is pushed outward. The pin rod pushes against the tongue of the spring pin 36, which disengages the lower locating hole 72. As the inner slide 35 is pushed upward by the vertical spring 14, the tongue of the elastic pin 36 is extended and locked in the upper positioning hole 73, which is in the unfolded state. At this time, the roll-over stand 2 is unfolded and pushes the shield 75 to be turned outwards, resulting in the operating state shown in fig. 2 and 3.

Finally, the hook of the endless rope 43 is fixedly connected to the hook 58 at the upper part of the car 57. The annular lifting rope 43 is driven to rotate by driving the driving wheel 42, so that the lift car 57 is driven to move up and down, and a rescue task is realized.

According to the technical scheme, the functions of the building fire-fighting lifting rescue platform are realized through switching of the folding state and the unfolding state. The novel energy-saving type energy-saving device has the advantages of being simple in structure, free of influence on the appearance of a building in a hidden state, capable of being unfolded and used only in an emergency state and the like. By applying the technical scheme, the problem that the existing building fire rescue equipment cannot rescue in time can be effectively solved, and the fire rescue efficiency and success rate are improved.

The first step: folding operation

1.1 Preparation:

in a non-emergency state, the building fire-fighting lifting rescue platform is in a folded state, and preparation work before folding operation is needed. At this time, the fixing frame 1 is positioned at the upper and lower sides of the fire window of the roof and the floor, and the annular hanging rope 43 is hidden in the wall decoration groove.

1.2 Folding operation of fire construction:

1.2.1 Pressing the inner end of the traction rod:

the operator begins to press the inner end of each drawbar. This causes the inner slide 35 of each drawbar to move downwards and compress the corresponding vertical spring 14. The sliding shaft at the inner end of the traction rod slides forwards in the sliding groove.

1.2.2 The inner slide slides to the position of the lower positioning hole:

as the inner slide 35 of the drawbar moves down, the tongue of the elastic pin 36 protrudes from the lower positioning hole 72 and is supported therein when the inner slide 35 slides to the corresponding lower positioning hole 72. At this time, the inner slide 35 of each traction rod is positioned at the lower positioning hole 72, and the whole lifting rescue platform is in a folded state. (states (1) and (2) in FIG. 5)

And a second step of: fire rescue deployment operation

2.1 Activating the electromagnetic spring pin 71:

in an emergency condition, the pin rod is pushed outwards by activating the electromagnetic latch 71. The pin rod pushes against the tongue of the spring pin 36, which disengages the lower locating hole 72.

2.2 The inner slide is pushed to the position of the upper positioning hole:

as the inner slide 35 is pushed upward by the vertical spring 14, the tongue of the elastic pin 36 protrudes and locks in the upper positioning hole 73. At this time, the inner slide 35 of each traction rod is positioned at the upper positioning hole 73, and the whole lifting rescue platform is in a unfolded state. (the states shown in FIGS. 2 and 3)

2.3 Unfolding the roll-over stand:

as the lifting rescue platform is unfolded, the roll-over stand 2 positioned at the upper part of the fixed frame 1 starts to be unfolded. After the roll-over frames 2 are respectively unfolded, the roll-over frames are respectively protruded outwardly to reserve the space occupied by the upward and downward movement of the car 57.

2.4 The hook connection and the driving wheel are started:

in the unfolded state, the hook of the endless suspension rope 43 is fixedly connected to the suspension hook 58 at the upper part of the car 57. Subsequently, the endless hanging rope 43 is driven to rotate by activating the driving mechanism of the driving wheel 42. Rotation of the drive sheave 42 drives the endless roping 43 to move the car 57 up and down.

Through the steps, the building fire-fighting lifting rescue platform is switched from the folded state to the unfolded state, so that rescue tasks are carried out. In the unfolded state, the roll-over stand 2 is unfolded and the protective cover 75 is turned outwards, providing support and protection for the rescue operation. Meanwhile, the rotation of the annular lifting rope 43 enables the lift car 57 to move up and down, so that the aim of personnel rescue is fulfilled. In the implementation process, part of the steps can be adjusted and optimized according to specific conditions so as to adapt to different application scenes and requirements.

The above detailed description of the present invention is merely illustrative or explanatory of the principles of the invention and is not necessarily intended to limit the invention. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention. For example, a containing cavity is arranged at the bottom of the lift car, a spiral belt is sleeved in the containing cavity, and a controllable door is arranged at the bottom of the containing cavity. Traction ropes and protection ropes are uniformly connected between the pitch gaps of the spiral belts, and the tops of the protection ropes and the spiral belts are respectively fixed in the accommodating cavity. The bottom of the lift car is provided with at least one passage port which is communicated with the upper inlet of the spiral belt, when the lift car is positioned at a high position, the controllable door is opened to enable the spiral belt to fall down to form a spiral passage, and a danger-avoiding person entering the lift car from a fire-fighting window can select to escape from the spiral passage.

Claims (4)

1. The building fire-fighting lifting rescue platform comprises a fixing frame (1), a turnover frame (2), a turnover connecting rod group (3), a lifting rope pulley assembly (4) and a lifting driving mechanism (5), and is characterized by further comprising an upper fixing frame Top and a lower fixing frame Top, wherein the upper fixing frame Top is fixed on the roof and is positioned on the upper side of the uppermost fire-fighting window, the lower fixing frame Bot is fixed on the floor and is positioned on the lower side of the lowermost fire-fighting window, the turnover frame (2) comprises a swing frame (21) and a rope pulley support (22), rope pulley supports (22) are respectively arranged on two sides of the swing frame (21), shaft seats (23) are respectively arranged on the inner side of each side of the rope pulley support (22), a movable pin shaft (24) is respectively arranged in each side shaft seat (23), the turnover connecting rod group (3) is used for connecting the fixed frame (1) and the turnover frame (2) after being unfolded, the lifting rope pulley assembly (4) comprises an upper guide wheel (41), a driving wheel (42) and an annular lifting rope (43), the upper guide wheel (41) and the rope support (44) are respectively arranged on the outer side of the upper guide wheel support (22) through the fixed shaft and the outer side of the driving wheel support (42) respectively, the driving wheel support (42) is respectively arranged on the outer side of the upper guide wheel support (42), the lifting driving mechanism (5) comprises a car body (51), an engine (52), a gear box (53), a transmission shaft (54), a car (57) and a lifting buckle (58), wherein the engine (52) is fixedly arranged at the rear side of the car body (51), an output shaft of the engine (52) is in transmission connection with an input shaft of the gear box (53), the output shaft of the gear box (53) is two parallel transmission shafts (54), spline sleeves (55) are fixedly arranged at the tail end of each transmission shaft respectively, meanwhile, spline shafts (56) are fixedly arranged at the outer ends of driving shafts of the driving wheels (42), the spline shafts (56) can be matched with the spline sleeves (55) in a sleeved mode, the car (57) is arranged at the upper portion of the front side of the car body (51), lifting buckles (58) are fixedly arranged at the two sides of the upper portion of the car (57), an access port is formed in the front side of the car (57), a stop part is arranged on an annular lifting rope (43), when the annular lifting rope (43) moves upwards, the stop part is used for supporting the lifting buckle (58), the car (57) is further moved upwards, the car (57) comprises a fixed frame (11) and a fixed frame (11) which are fixed on two sides of the fixed frame (11), the inner cavity of the fixed rail (12) is provided with a C-shaped rail groove (13), the middle part and the lower part of the C-shaped rail groove (13) are respectively provided with an upper fixed pin shaft (15) and a lower fixed pin shaft (16), the upper sides of the two fixed pin shafts are respectively provided with a vertical spring (14) in a matching manner, the turnover connecting rod group (3) comprises an upper swing rod (31), a lower swing rod (32), an upper traction rod (33), a lower traction rod (34), an inner slide block (35) and an elastic pin (36), the rear ends of the upper swing rod (31) and the lower swing rod (32) are respectively hinged with the upper fixed pin shaft (15) and the lower fixed pin shaft (16), the front ends of the upper swing rod (31) and the lower swing rod (32) are respectively hinged with a corresponding swing pin shaft (24), the front ends of the upper swing rod (31) and the lower swing rod (32) are respectively provided with a track plate (37), each track plate (37) is respectively provided with a sliding groove (38), a sliding shaft (39) is respectively sleeved in each sliding groove, the upper traction rod (33) and the upper end of the lower traction rod (34) is respectively provided with an elastic pin (35) in the sliding groove (35), the sliding groove (35) is respectively provided with the sliding groove (35), the sliding groove (35) and the sliding groove (35) is respectively provided with the sliding groove, the front ends of the upper traction rod (33) and the lower traction rod (34) are respectively hinged on corresponding sliding shafts (39), a compound wheel (45) is fixed on the outer side of the driving wheel (42), meanwhile, a lower guide wheel (46) is installed on the outer side of a lower rope wheel support (22) through a fixed shaft, annular speed limiting ropes (47) are respectively sleeved on the outer sides of the compound wheel (45) and the lower guide wheel (46), damping mechanisms are respectively installed on the left and right annular speed limiting ropes (47), in order to improve the stability of each rope wheel, axle boxes (48) are respectively fixed on the outer sides of the upper and lower rope wheel supports (22), the axle boxes (48) are used for supporting the outer ends of the fixed shafts, and are simultaneously covered on the outer sides of each rope wheel support, the damping mechanisms adopt automatic damping mechanisms (6) which comprise a main frame (61), an auxiliary frame (63), a rope pressing wheel (64), a starting rod (66) and a main shaft (68), the center of the main frame (61) is provided with a shaft hole, and a main shaft (62) is installed, the main shaft (62) is fixed on the rope wheel support of the annular speed limiting rope (47), so that the main frame (61) can be symmetrically installed on the inner side of each auxiliary frame (64) along the main frame (63), the annular speed limiting ropes (47) are sleeved in each pair of rope pressing wheels (64), auxiliary shafts (65) are respectively fixed in the middle of the outer side of each auxiliary frame (63), and the auxiliary shafts (65) are respectively matched and sleeved in corresponding shaft holes on two sides of the main frame (61); a starting rod (66) is respectively and fixedly extended outwards at one end or two ends of the main frame (61), an auxiliary tension spring (67) is connected to the starting rod (66), a traction rope (68) is fixedly connected to the tail end of the starting rod (66), an ejection control mechanism (7) is additionally arranged on the upper traction rod (33) and the lower traction rod (34), the ejection control mechanism (7) comprises an electromagnetic ejection pin (71), a lower positioning hole (72) and an upper positioning hole (73), the lower positioning hole (72) is respectively arranged at the lower part of the inner wall of the C-shaped track groove, the upper positioning hole (73) is arranged at the upper part, the electromagnetic ejection pin (71) is fixed at the outer side of the lower positioning hole (72), the electromagnetic spring pin (71) comprises a shell and an electromagnet, a pin rod is sleeved in the inner cavity of the shell and is fixedly pressed by an internal pressure spring to retract inwards, but after the electromagnet is electrified, the electromagnet attracts the pin rod to overcome the elasticity of the internal pressure spring so that the pin rod outwards pops out, when the pin rod outwards pops out, the lock tongue of the elastic pin (36) can be pushed to separate from the lower locating hole (72), and then the inner slider (35) is pushed upwards by the vertical spring (14) until the inner slider is located at the position of the upper locating hole (73), and the lock tongue of the elastic pin (36) stretches out from the upper locating hole (73) to be in a locking state.

2. The building fire rescue platform as claimed in claim 1, characterized in that the elastic pin (36) comprises a tubular pin shaft, the pipe cavity of which is sleeved with a lock tongue, and the inner side of the lock tongue is sleeved with a top spring.

3. The building fire-fighting lifting rescue platform according to claim 1, wherein a composite fixing seat (74) is further fixed on the upper portion of the fixing frame (1), a protective cover (75) is hinged to the upper end of the composite fixing seat (74) through a rotating shaft (76), and in a non-emergency state, the protective cover (75) covers the outer side of the upper portion or the lower portion of the turnover frame.

4. The building fire-fighting lifting rescue platform according to claim 1, characterized in that a protective groove is fixed on the wall body at two sides of the fire-fighting window for sleeving the annular lifting rope (43).