An additional elevator system for existing buildings and control method thereof

Abstract

The present invention belongs to the technical field of existing building reconstruction, and specifically relates to an additional elevator system for existing buildings and a control method thereof. The present invention includes an elevator room and a lift, and a turntable is arranged at least on one side of the lift. The turntable is hinged with a telescopic gallery bridge through a first vertical hinge shaft, and the rotation of the turntable can drive the telescopic gallery bridge to produce a swinging motion; the axis of the first vertical hinge shaft is parallel to the telescopic direction of the telescopic gallery bridge, and the system also includes a driving component for driving the telescopic gallery bridge to produce an articulated motion. The present invention can not only meet the needs of people to get on and off the inter-floor rest platform quickly, but also meet the needs of the elderly and even people with limited mobility who need to rely on wheelchairs or stretchers to get on and off the elevator directly at the floor platform, so that the present invention can meet the needs of various types of people to the greatest extent; the present invention can also provide a control method to specifically solve the needs of people to get on and off the elevator.

Description

Technical Field

[0001] The present invention belongs to the technical field of existing building reconstruction, and in particular relates to an external elevator system for an existing building and a control method thereof. Background Art

[0002] In the past, most of the residential buildings in my country were low-rise buildings with 1 to 6 floors and no elevators. Only the newly developed residential buildings in recent years are small high-rise and high-rise buildings with elevators. With the rapid arrival of an aging society in my country, there is an urgent need to renovate the above-mentioned old low-rise buildings, especially to install elevators in these low-rise buildings to meet the needs of elderly residents and other people with mobility difficulties to go up and down the stairs. The old-style ground-floor buildings were built a long time ago, and most of the buildings are brick-concrete structures. There are many households living in the buildings. Only the stairwell in the whole building is a public area, so it can only be installed in units at the original stairwell position, that is, one unit is equipped with an additional elevator outside the stairwell. In addition, since the general staircase structure is mostly a double-run scissor ladder, this type of staircase has an inter-floor rest platform near the outer wall, which is easy to connect with an additional elevator. Therefore, the inter-floor rest platform in the stairwell is currently used as a transition area for going up and down elevators. Although the installation method of the above-mentioned additional elevator makes it very convenient to connect the additional elevator to the original structure, the change to the original building structure is minimal, and the cost of installing the elevator is also low, there is a problem that cannot be solved, that is, people getting on and off the elevator on any floor need to first reach the inter-floor rest platform, and then use the original stairs to go up or down half a floor to reach the residents' door located on the floor platform; for generally healthy people, this is not a big problem, but for the elderly or even people with limited mobility who need to rely on wheelchairs or stretchers to move, half a flight of stairs will greatly increase their climbing intensity, thereby causing serious troubles to their daily lives. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide an additional elevator system for existing buildings with a simple structure and a compact and reasonable construction, which can not only meet the needs of people to quickly get on and off the rest platform between floors, but also meet the needs of the elderly and even people with limited mobility who need to rely on wheelchairs or stretchers to get on and off the elevator directly at the floor platform, so that the present invention can meet the needs of various types of people to the greatest extent; another purpose of the present invention is to provide a control method based on the above-mentioned additional elevator system for existing buildings, so as to specifically solve the needs of people to get on and off the elevator.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] An additional elevator system for an existing building comprises an elevator room and an elevator arranged in the elevator room and capable of generating lifting and lowering movements relative to the elevator room, wherein a turntable with a horizontal axis is arranged at least on one side of the elevator, the turntable is hingedly connected to a telescopic gallery bridge via a first vertical hinge shaft, the rotation of the turntable can drive the telescopic gallery bridge to generate a swinging movement parallel to the direction in which people enter and exit the elevator; the axis of the first vertical hinge shaft is parallel to the extension and retraction direction of the telescopic gallery bridge, and the system further comprises a driving component for driving the telescopic gallery bridge to generate an articulated movement around the first vertical hinge shaft.

[0006] Preferably, the telescopic gallery bridge includes a fixed section directly engaged on the turntable and an extension section that produces a telescopic movement relative to the fixed section; the fixed section rests on the ring beam of the stairwell, and the extension section finally rests on the floor platform beam after being extended relative to the fixed section; the fixed section includes a fixed truss and a first platform plate laid on the fixed truss, and the extension section includes an extension truss and a second platform plate laid on the extension truss; the fixed truss and the extension truss form a coaxial sleeve-type socket-type fitting relationship, and are driven by a telescopic module to produce a relative telescopic movement between the two.

[0007] Preferably, when the fixed section is placed on the ring beam of the stairwell of an existing building under the drive of the turntable, the telescopic gallery bridge deck is located on the vertical plane, and the first vertical hinge axis is located at the lower part of the tail end of the fixed section; the telescopic gallery bridge also includes a connecting portion arranged vertically with the axis, and the two ends of the connecting portion extend in opposite directions in the vertical direction respectively, and form a fixed fit with the head end of the fixed section or the upper edge of the extension section, and at the same time form a guide rail fit with the upper edge of the extension section or the head end of the fixed section, with the guiding direction being parallel to the movement direction of the extension section.

[0008] Preferably, the connecting part is a lifting piston cylinder; the telescopic module is a traction rope group or a linear telescopic cylinder or a gear rack linear drive module.

[0009] Preferably, the driving assembly includes a first hydraulic cylinder, one end of which is hinged on a fixed plate at the turntable, and the other end extends toward the hinge point of the telescopic gallery bridge and forms an articulated cooperation therewith, and there is a distance between the hinge point on the telescopic gallery bridge and the first vertical hinge axis that facilitates the articulation movement of the telescopic gallery bridge.

[0010] Preferably, the system also includes a fixed short gallery bridge, which includes a short truss and a third platform plate laid on the short truss, and the head end of the short truss constitutes a resting end for resting on the ring beam of the stairwell; the fixed short gallery bridge and the telescopic long gallery bridge are distributed 180° on the turntable; when the fixed short gallery bridge is placed on the ring beam of the stairwell of an existing building under the drive of the turntable, the fixed short gallery bridge deck is located on the vertical plane, and the lower part of the tail end of the short truss is hinged to the fixed plate at the turntable through a second vertical hinge axis; the system also includes a second hydraulic cylinder for driving the fixed short gallery bridge to produce an articulated movement around the second vertical hinge axis, one end of the second hydraulic cylinder is hinged to the fixed plate at the turntable, and the other end extends to the matching point of the fixed short gallery bridge and forms an articulated cooperation with it, and there is a spacing between the matching point on the fixed short gallery bridge and the second vertical hinge axis for facilitating the articulated movement of the fixed short gallery bridge.

[0011] Preferably, the head end of the fixed short gallery bridge is hinged with a lap truss through an articulated seat. When the fixed short gallery bridge is placed on the ring beam of the stairwell of an existing building under the drive of a turntable, the fixed short gallery bridge deck is located on a vertical plane, the axis of the articulated seat is in a horizontal state, and the lap truss is driven by a lap hydraulic cylinder connecting the fixed short gallery bridge and the lap truss to generate a pitching movement; the head end of the lap truss is arranged with an anti-collision wheel.

[0012] Preferably, a vertical guide rail is arranged on the inner wall of the elevator room, an electromagnetic unit is installed on the vertical guide rail, and a telescopic positioning pin that is in a retracted state under normal conditions is arranged on the elevator; when the elevator moves along the vertical guide rail to a designated floor, the electromagnetic unit can be activated to attract the telescopic positioning pin to extend out and snap into a preset positioning hole on the vertical guide rail.

[0013] Preferably, a group of gallery bridge units is formed by a telescopic long gallery bridge, a fixed short gallery bridge and a turntable, and the gallery bridge units are in two groups and are symmetrically distributed on both sides of the lift.

[0014] Preferably, a control method for an existing building external elevator system is applied, characterized in that:

[0015] When a person needs to enter the {i-0.5}th floor {i is an integer}, the steps are as follows:

[0016] 1) After entering the elevator, select the floor platform you want to go to, which is the {i-0.5}th floor platform;

[0017] 2) The elevator control unit lifts the elevator to the platform on the {i-0.5}th floor and stops;

[0018] 3) The elevator control unit controls the electromagnet to generate suction, so that the telescopic positioning pin is stuck in the positioning hole, thereby fixing the elevator;

[0019] 4) The turntable starts to move, driving the fixed short corridor bridge to rotate 90° counterclockwise to a horizontal upright state; when the fixed short corridor bridge rotates, the overlapping trusses are pre-hinged under the action of the overlapping hydraulic cylinder to avoid the stair ring beam, and reset after crossing the stair ring beam so as to be placed on the stair ring beam from top to bottom;

[0020] 5) The second hydraulic cylinder is actuated to drive the fixed short gallery bridge to produce a flipping motion along the second vertical hinge axis, so that the fixed short gallery bridge is placed flat on the ring beam of the stairwell;

[0021] 6) After the detection sensor checks that the corridor bridge is intact, it sends a signal to the elevator control unit, the elevator door opens, and the personnel enter the {i-0.5}th floor platform through the fixed short corridor bridge;

[0022] 7) Start the detection sensor again, check that there is no one or object on the corridor bridge, and send a bridge retraction signal to the elevator control unit to retract the corridor bridge. The turntable rotates 90° clockwise and drives the fixed short corridor bridge to return to its initial vertical state;

[0023] When a person needs to enter the i-th floor {i is an integer}, the steps are as follows:

[0024] 1) After entering the elevator, select the inter-floor rest platform you want to go to, that is, the inter-floor rest platform on the i-th floor;

[0025] 2) The elevator control unit lifts the elevator to the i-th inter-floor rest platform and stops;

[0026] 3) The elevator control unit controls the electromagnet to generate suction, so that the telescopic positioning pin is stuck in the positioning hole, thereby fixing the elevator;

[0027] 4) The turntable starts to move, driving the telescopic gallery bridge to rotate 90° clockwise to a horizontal upright state and rest on the outer staircase ring beam from top to bottom;

[0028] 5) The extension section begins to extend relative to the fixed section until the head end of the extension section rests on the floor platform beam of the inner layer;

[0029] 6) The first hydraulic cylinder is actuated to drive the telescopic gallery bridge to flip along the first vertical hinge axis, so that the telescopic gallery bridge is placed flat on the staircase ring beam and the floor platform beam;

[0030] 7) After the detection sensor checks that the gallery bridge is intact, it sends a signal to the elevator control unit, the elevator door opens, and the personnel enter the i-th floor rest platform through the retractable gallery bridge;

[0031] 8) Start the detection sensor again, check that there is no one or object on the corridor bridge, and send a bridge retraction signal to the elevator control unit to retract the corridor bridge. The turntable rotates 90° counterclockwise and drives the retractable corridor bridge to return to its initial plumb upright state.

[0032] The beneficial effects of the present invention are:

[0033] 1) The present invention breaks the technical shackles of the traditional external elevator for existing buildings that "must stop at one floor", and instead adopts the design idea of ​​"stopping at 0.5 floors". Through the rotation of the turntable, the telescopic gallery bridge is realized from the initial vertical vertical to the downward swing to the horizontal vertical vertical. After the telescopic gallery bridge performs the two-stage action, if the person is inconvenient to move and needs to go directly to the floor platform at the {i-0.5}th floor, the extension action of the telescopic gallery bridge can make up for it. Finally, through the driving action of the driving component, the flat operation of the telescopic gallery bridge is realized, so that a gallery bridge for people to pass is formed between the elevator and the corresponding platform.

[0034] In summary, the present invention relies on the four-linked action of the telescopic gallery bridge from initial to swinging down to laying flat and then extending, thereby achieving a direct access effect to the floor platform at the {i-0.5} floor, that is, the floor where the user is located. So far, the present invention can not only meet the needs of people to quickly get on and off the rest platform between floors on the i floor, but also meet the needs of the elderly and even people with limited mobility who need to rely on wheelchairs or stretchers to directly get on and off the elevator at the floor platform on the {i-0.5} floor, so that the present invention can meet the needs of various types of people to the greatest extent.

[0035] 2) There are many ways to realize the telescopic gallery bridge, such as using double-layer plates of upper and lower layers in combination with a guide rail structure to achieve telescopic, etc. The present invention preferably adopts a truss structure and relies on a coaxial sleeve structure similar to a telescopic rod to ensure the telescopic purpose of the extension section relative to the fixed section. In this way, on the one hand, the truss structure ensures the structural rigidity of the entire gallery bridge, and its working reliability, lightness and safety can be significantly guaranteed; on the other hand, the sleeve-type truss ensures the telescopic characteristics of the telescopic gallery bridge, achieving multiple goals at one stroke.

[0036] 3) When the extension section slides relative to the fixed section, the connection part can play the role of a partial guide rail, thereby making the extension section's telescopic movement more precise. In fact, the connection part can even directly use a lifting piston cylinder. In this way, on the one hand, its guide rail characteristics can be used to ensure the stable guiding movement of the extension section; on the other hand, when the extension section is telescopic, the connection part first slightly lifts the extension section through its own return movement, and then relies on the telescopic module to drive the extension section whose end has been lifted to produce a telescopic movement. In this way, since the end of the extension section is separated from the mating surface of the fixed section, its friction is smaller, which is more conducive to being dragged and producing a telescopic movement.

[0037] 4) For the telescopic module, it can be a traction rope group or a linear telescopic cylinder or a gear rack linear drive module. The traction rope group, as the name implies, is to drive the corresponding truss to produce telescopic action by traction with multiple direction-changing wheels and corresponding traction ropes. The linear telescopic cylinder and the gear rack linear drive module are both linear drive parts, which can also ensure the controllable telescopic action of the telescopic gallery bridge.

[0038] 5) The telescopic gallery bridge produces a four-link action from initial to swing down to lay flat and then to extend. When it produces the lay flat action, the power source comes from the first hydraulic cylinder. Once the telescopic gallery bridge swings down and extends to the right position, the first hydraulic cylinder is activated, and the telescopic gallery bridge is laid flat, so that a gallery bridge for people to pass can be formed between the elevator and the corresponding platform.

[0039] 6) It can be seen from the above structure that although the telescopic long gallery bridge can achieve the parking effect of any 0.5-story platform, due to its relatively more movements, it will increase the average occupancy time of the elevator, and reduce the efficiency of going up and down the stairs to a certain extent. Therefore, for general personnel with free movement ability, the present invention additionally provides a fixed short gallery bridge as a means of rapid passage to the rest platform on the i-th floor. The structure of the fixed short gallery bridge is almost the same as that of the telescopic long gallery bridge. The only difference is that the fixed short gallery bridge is of fixed length and cannot be retracted. When in use, it can be directly placed on the stairwell ring beam at the rest platform on the i-th floor. It is extremely flexible and convenient to use, and the efficiency of the elevator can be significantly improved.

[0040] 7) Considering that the fixed short gallery bridge and the telescopic long gallery bridge are arranged on both sides of the axis of the turntable, the fixed short gallery bridge will inevitably collide and interfere with the stair ring beam when it swings up at 90 degrees. For this kind of collision and interference, the installation height of the fixed short gallery bridge can be appropriately increased, and after the fixed short gallery bridge swings to the stair ring beam, the elevator is slightly lowered so that the fixed short gallery bridge is placed on the stair ring beam from top to bottom. Of course, the above means are more troublesome. The present invention provides a matching method, that is, using a lap truss as an extension structure. Whenever the fixed short gallery bridge swings up at 90 degrees, the lap hydraulic cylinder drives the lap truss to move so as to avoid the stair ring beam; and when the fixed short gallery bridge crosses the stair ring beam, the lap hydraulic cylinder makes a return motion to reset the lap truss position, and the lap truss can be used to achieve the purpose of convenient connection between the fixed truss and the stair ring beam.

[0041] 8) Whether it is a telescopic long gallery bridge or a fixed short gallery bridge, a cantilever beam will be formed when a swinging motion is generated along the plumb plane under the drive of the turntable. At this time, the elevator as a suspended part may be in a swinging state, affecting the personnel experience. Therefore, the present invention also provides a temporary fixing structure, that is, once the elevator is lifted into place, the telescopic positioning pin is adsorbed by the electromagnetic unit. At this time, the telescopic positioning pin is sucked into the positioning hole, thereby realizing the temporary fixing function of the entire elevator relative to the elevator room. When the corresponding gallery bridge is reset, the electromagnetic unit loses power, and the elevator is free from the constraint and lifts normally. The action is obviously extremely flexible, and safety can be effectively guaranteed.

[0042] 9) It is worth noting that in the initial state, since both the telescopic long gallery bridge and the fixed short gallery bridge are cantilever structures, how to ensure the normal lifting of the elevator becomes a problem. The present invention can ensure the force balance of the elevator by placing the two on both sides of the axis of the turntable. In addition, a group of gallery units is formed by the telescopic long gallery bridge, the fixed short gallery bridge and the turntable. The gallery units are two groups and are symmetrically distributed on both sides of the elevator, which can further ensure the lifting reliability of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the working state of the present invention;

[0044] Figure 2 It is a structural schematic diagram of one embodiment of a telescopic gallery bridge;

[0045] Figure 3 It is a structural schematic diagram of one embodiment of a fixed short gallery bridge;

[0046] Figure 4 It is a schematic diagram of the action of the telescopic gallery bridge when it changes from a horizontal upright state to a flat state;

[0047] Figure 5 It is a schematic diagram of the action of a fixed short corridor bridge when it returns from a flat state to a horizontal upright state.

[0048] The actual correspondence between the reference numerals and component names of the present invention is as follows:

[0049] a- floor platform beam b- stairwell ring beam c- floor platform d- resting platform between floors

[0050] 10- Elevator room 11- Vertical guide rail

[0051] 20-lift elevator 30-turntable

[0052] 31-first vertical hinge axis 32-second vertical hinge axis 33-fixed plate

[0053] 40- telescopic gallery bridge 41- fixed section 41a- fixed truss

[0054] 42- extension section 42a- extension truss 43- connection part

[0055] 44-first hydraulic cylinder 44a-hinge point

[0056] 50-Fixed short corridor bridge 51-Short truss 52-Second hydraulic cylinder 53-Match point

[0057] 54- articulated seat 55- overlapping truss 56- overlapping hydraulic cylinder 57- anti-collision wheel DETAILED DESCRIPTION

[0058] For ease of understanding, here we combine Figure 1-5 The specific structure and working mode of the present invention are further described as follows:

[0059] The specific structure of the present invention is as follows Figure 1-5 As shown, its main structure includes an elevator room 10 arranged outside the existing building and a lift elevator 20 located in the elevator room 10. Among them:

[0060] like Figure 1 In the preferred state shown, a group of corridor bridge units are arranged on both sides of the lift 20, each of which includes a group of rotating discs 30 driven by a power motor or other power source, a group of telescopic long corridor bridges 40 for specially realizing the docking and overlapping functions of the {i-0.5}th floor platform c, and a group of extended fixed short corridor bridges 50 for specially realizing the docking and overlapping functions of the i-th inter-floor rest platform d. During assembly, the telescopic long corridor bridges 40 and the fixed short corridor bridges 50 are respectively arranged on both sides of the axis of the rotating disc 30, thereby forming a 180° distribution; during operation, the telescopic long corridor bridges 40 and the fixed short corridor bridges 50 are selected for use.

[0061] The turntable 30 slides on the vertical guide rail 11 together with the elevator 20. The electromagnetic unit such as an electromagnet can adsorb the telescopic positioning pin to achieve the fixing effect of the elevator 20 and the vertical guide rail 11 at the elevator room 10, thereby achieving the purpose of stopping the elevator 20 at the designated floor. Stair up and down information knobs need to be installed on the side wall of the stair rest platform and the side wall of the stairs under the floor platform c to provide signals for people to go up and down the stairs.

[0062] Since the control of the operation of the entire elevator system needs to consider two aspects, one is the demand control of people in the elevator, and the other is the demand control of people outside the elevator. Since the installation of elevators in existing buildings is mainly to solve the problem of going up and down stairs for people with limited mobility such as the elderly, and at the same time to take into account the daily use of the stairwell, the above-mentioned external corridor bridges obviously cannot be left in the stairwell for a long time, especially the longer corridor bridges, that is, the telescopic long corridor bridges 40, need to be removed as soon as possible after use to ensure the daily use of the stairwell. In order to be able to establish and remove the external corridor bridges in time, a corridor bridge control system can be set on the two sets of turntables 30 of the elevator 20, so as to ensure the purpose of the corresponding corridor bridges being lowered, extended and laid flat.

[0063] For the fixed short corridor bridge 50, its length L is fixed. It is a certain value for each building and is generally not too long, not exceeding 3m. The length of the telescopic long corridor bridge 40 is L+H, that is, the length of the fixed section 41 is L, and the length of the extension section 42 is H. The length of the extension section 42 is relatively large, but it is basically the same for the same building, generally not exceeding 6m, so it can be designed to be a constant length. When in use, if Figure 1 and Figure 3 As shown, the fixed short gallery bridge 50 is directly rotated 90° from both sides of the elevator 20, and is placed on the inter-floor ring beam b by the cooperation of the overlapping trusses 55, the hinged seats 54, and the overlapping hydraulic cylinders 56. The telescopic long gallery bridge 40 is divided into two sections, wherein the fixed section 41 is the same as the fixed short gallery bridge 50, and is rotated 90° from both sides of the elevator and placed on the inter-floor ring beam b, and the extension section 42 is sheathed in the fixed section 41. Figure 2 In the specific embodiment shown, the telescopic module for driving the extension section 42 to extend and retract is a traction rope group, that is, the extension section 42, the fixed section 41 and the corresponding turning wheel are connected by a traction rope, and the power source can be the same as that of the rotating disk 30, or a separate power source can be designed. Figure 2 In the figure, point A is the rope locking point, and points B and C are two sets of turning wheels. By driving a power source to pull a section of traction rope, the traction rope passes through points C and B and then pulls point A, so that the extension section 42 can be extended; and when the power source rotates in the opposite direction, another section of traction rope can be used to directly pull point A horizontally, so that the extension section 42 can be retracted relative to the fixed section 41. Of course, in actual use, the traction rope can also be replaced by a closed wire rope, and it is only necessary to determine the rope locking point.

[0064] Whether it is a fixed short gallery bridge 50 or a telescopic long gallery bridge 40, they are all composed of a simple truss structure in conjunction with a corresponding platform plate. For example, the telescopic long gallery bridge 40 includes a fixed section 41 composed of a fixed truss 41a and a first platform plate, and an extension section 42 composed of an extension truss 42a and a second platform plate, while the fixed short gallery bridge 50 is composed of a short truss 51 and a third platform plate. The truss structure ensures the working rigidity and reliability of the corresponding gallery bridge, while its own weight is significantly reduced, making it reliable and stable to use. During actual work, the swinging action of the above-mentioned truss is achieved by the turntable 30. For the telescopic long gallery bridge 40, it is also necessary to rely on a telescopic module to realize the telescopic function. In the case of Figure 4-5 It can be seen from the laying and retracting actions shown that when the gallery bridge is not needed, the gallery bridge is in a vertical vertical state and is close to both sides of the elevator 20; when needed, the vertically vertical gallery bridges on both sides are first swung down through the turntable 30 to the position as shown in FIG. Figure 5 The horizontal vertical state shown. Figure 4 As shown, by pulling down the first hydraulic cylinder 44 or the second hydraulic cylinder 52 around the corresponding vertical hinge axis, the corresponding corridor can be rotated 90° and laid flat to form a complete corridor; when the corridor is used up, the first hydraulic cylinder 44 or the second hydraulic cylinder 52 supplies oil in the reverse direction to rotate the corridor structure 90°, so that the corridor is first restored to a horizontal upright state and then to a vertical upright state. The hydraulic systems of all the above hydraulic cylinders are centrally and automatically controlled by the oil pump and control system on the lift 20.

[0065] In addition, whether it is a telescopic long gallery bridge 40 or a fixed short gallery bridge 50, when a swinging motion is generated along the vertical plane under the drive of the rotating disk 30, the following Figure 2-3 The cantilever beam shown in the figure, at this time, the elevator 20 as a suspended part may be in a swaying state, affecting the user experience. Therefore, the present invention also provides a temporary fixing structure, that is, once the elevator 20 is lifted and lowered into place, the telescopic positioning pin can be absorbed by the electromagnetic unit, and the telescopic positioning pin is sucked into the positioning hole, thereby realizing the temporary fixing function of the entire elevator 20 relative to the elevator room 10. When the corresponding corridor is reset, the electromagnetic unit loses power, and the elevator 20 is free from the constraint and lifts normally. The action is obviously very flexible, and the safety can also be effectively guaranteed.

[0066] In view of the fact that the control of the additional elevator of the present invention is more complicated than that of the general elevator, in addition to the control requirements of the general elevator, corresponding control requirements must be met. The specific control steps of the present invention are given as follows:

[0067] When a person needs to enter the {i-0.5}th floor {i is an integer}, the steps are as follows:

[0068] 1) After entering the elevator, select the floor platform c you want to go to in the elevator, such as the floor platform c on the {i-0.5}th floor;

[0069] 2) The elevator control unit lifts the elevator 20 to the {i-0.5}th floor platform c and stops;

[0070] 3) The elevator control unit controls the electromagnet to generate suction, so that the telescopic positioning pin is inserted into the positioning hole, thereby fixing the elevator 20;

[0071] 4) The rotating disk 30 starts to move, driving the fixed short gallery bridge 50 to rotate 90° counterclockwise to Figure 5 When the fixed short corridor bridge 50 rotates, the lap truss 55 is pre-hinged under the action of the lap hydraulic cylinder 56 to avoid the stair ring beam b, and resets after crossing the stair ring beam b so as to be placed on the stair ring beam b from top to bottom;

[0072] 5) The second hydraulic cylinder 52 is actuated to drive the fixed short gallery bridge 50 to produce a flipping motion along the second vertical hinge axis 32, so that the fixed short gallery bridge 50 is turned with reference to Figure 4 The one shown is placed flat on the staircase ring beam b;

[0073] 6) After the detection sensor checks that the corridor bridge is intact, it sends a signal to the elevator control unit, the elevator door opens, and the personnel enter the {i-0.5}th floor platform c through the fixed short corridor bridge 50;

[0074] 7) Start the detection sensor again, check that there is no one or object in the corridor bridge, and send a bridge retraction signal to the elevator control unit to retract the corridor bridge. The turntable 30 rotates 90° clockwise and drives the fixed short corridor bridge 50 to return to the original position. Figure 1 The initial plumb vertical state shown;

[0075] When a person needs to enter the i-th floor {i is an integer}, the steps are as follows:

[0076] 1) After entering the elevator, select the inter-floor rest platform d you want to go to in the elevator, such as the inter-floor rest platform d on the i-th floor;

[0077] 2) The elevator control unit lifts the lift 20 to the i-th inter-floor rest platform d and stops;

[0078] 3) The elevator control unit controls the electromagnet to generate suction, so that the telescopic positioning pin is inserted into the positioning hole, thereby fixing the elevator 20;

[0079] 4) The rotating disk 30 starts to move, driving the telescopic gallery bridge 40 to rotate 90° clockwise to a horizontal upright state and rest on the outer staircase ring beam b from top to bottom;

[0080] 5) The extension section 42 begins to extend relative to the fixed section 41 until the first end of the extension section 42 rests on the floor platform beam a of the inner layer;

[0081] 6) The first hydraulic cylinder 44 is actuated to drive the telescopic gallery bridge 40 to flip along the first vertical hinge axis 31, so that the telescopic gallery bridge 40 is placed flat on the staircase ring beam b and the floor platform beam a;

[0082] 7) After the detection sensor checks that the gallery bridge is intact, it sends a signal to the elevator control unit, the elevator door opens, and the personnel enter the i-th floor inter-floor rest platform d through the telescopic gallery bridge 40;

[0083] 8) Start the detection sensor again, check that there is no one or object on the corridor bridge, and send a bridge retraction signal to the elevator control unit to retract the corridor bridge. The turntable 30 rotates 90° counterclockwise and drives the telescopic corridor bridge 40 to return to its initial vertical upright state.

[0084] Of course, the above is one specific embodiment of the present invention. In actual operation, equivalent replacement of the telescopic module, such as using a hydraulic cylinder or other structure to realize the telescopic action of the telescopic long gallery bridge 40, or only using one of the telescopic long gallery bridge 40 and the fixed short gallery bridge 50 to form a separate technical solution, or even using other structures other than the truss structure to form a corresponding gallery bridge, etc., such conventional structural changes made on the basis of the known specific technical solutions of the present invention should be regarded as equivalent or similar designs and fall within the protection scope of the present invention.

Claims

1. An additional elevator system for an existing building, comprising an elevator room (10) and an elevator (20) arranged in the elevator room (10) and capable of performing a lifting motion relative to the elevator room (10), characterized in that: A turntable (30) with a horizontal axis is arranged at least on one side of the elevator (20); the turntable (30) is hingedly connected to a telescopic gallery bridge (40) via a first vertical hinge shaft (31); the turntable (30) generates a rotational movement that can drive the telescopic gallery bridge (40) to generate a swinging movement parallel to the direction in which people enter and exit the elevator (20); the axis of the first vertical hinge shaft is parallel to the telescopic direction of the telescopic gallery bridge; the system further comprises a driving component for driving the telescopic gallery bridge (40) to generate an articulated movement around the first vertical hinge shaft (31); The driving assembly comprises a first hydraulic cylinder (44), one end of the first hydraulic cylinder (44) is hinged on a fixed plate (33) at the rotating disk (30), and the other end extends to a hinge point (44a) of the telescopic gallery bridge (40) and forms an articulated cooperation therewith, and a spacing exists between the hinge point (44a) on the telescopic gallery bridge (40) and the first vertical articulated axis (31) to facilitate the articulation action of the telescopic gallery bridge (40); The system also includes a fixed short gallery bridge (50), the fixed short gallery bridge (50) including a short truss (51) and a third platform plate laid on the short truss (51), the head end of the short truss (51) constituting a resting end for resting on a staircase ring beam (b); the fixed short gallery bridge (50) and the telescopic long gallery bridge (40) are distributed at 180 degrees on the turntable (30); when the fixed short gallery bridge (50) is placed on the staircase ring beam (b) of the existing building under the drive of the turntable (30), the fixed short gallery bridge (50) is located on the vertical plane, and the lower part of the tail end of the short truss (51) is connected to the second vertical plane. The vertical hinge shaft (32) is hinged on the fixed plate (33) at the turntable (30); the system also includes a second hydraulic cylinder (52) for driving the fixed short gallery bridge (50) to generate a hinged action around the second vertical hinge shaft (32); one end of the second hydraulic cylinder (52) is hinged on the fixed plate (33) at the turntable (30), and the other end extends to the matching point (53) of the fixed short gallery bridge (50) and forms a hinged match with it; there is a spacing between the matching point (53) on the fixed short gallery bridge (50) and the second vertical hinge shaft (32) to facilitate the fixed short gallery bridge (50) to generate a hinged action.

2. The additional elevator system for an existing building according to claim 1, characterized in that: The telescopic gallery bridge (40) comprises a fixed section (41) directly matched with the turntable (30) and an extension section (42) that generates a telescopic movement relative to the fixed section (41); the fixed section (41) is placed on the ring beam (b) of the staircase, and the extension section (42) is extended relative to the fixed section (41) and finally rests on the floor platform beam (a); the fixed section (41) comprises a fixed truss (41a) and a first platform plate laid on the fixed truss (41a), and the extension section (42) comprises an extension truss (42a) and a second platform plate laid on the extension truss (42a); the fixed truss (41a) and the extension truss (42a) form a coaxial sleeve-type sleeve-type fitting relationship, and rely on the telescopic module to drive the two to generate relative telescopic movements.

3. The additional elevator system for an existing building according to claim 2, characterized in that: When the fixed section (41) is placed on the ring beam (b) of the stairwell of the existing building under the drive of the turntable (30), the telescopic gallery bridge (40) is located on the vertical plane, and the first vertical hinge axis (31) is located at the lower part of the tail end of the fixed section (41); the telescopic gallery bridge (40) also includes a connecting portion (43) arranged vertically along the axis, and the two ends of the connecting portion (43) extend in opposite directions in the vertical direction respectively, and form a fixed fit with the head end of the fixed section or the upper edge of the extension section (42), and at the same time, form a guide rail fit with the upper edge of the extension section (42) or the head end of the fixed section, with the guide direction being parallel to the movement direction of the extension section (42).

4. The additional elevator system for an existing building according to claim 3, characterized in that: The connecting part (43) is a lifting piston cylinder; the telescopic module is a traction rope group or a linear telescopic cylinder or a gear rack linear drive module.

5. The additional elevator system for an existing building according to claim 1, characterized in that: The head end of the fixed short corridor bridge (50) is hinged with a lap truss (55) through an articulated seat (54). When the fixed short corridor bridge (50) is placed on the ring beam (b) of the stairwell of an existing building under the drive of a rotating disk (30), the surface of the fixed short corridor bridge (50) is located on a vertical plane, the axis of the articulated seat (54) is located in a horizontal state, and the lap truss (55) is driven by a lap hydraulic cylinder (56) connecting the fixed short corridor bridge (50) and the lap truss (55) to generate a pitching movement; the head end of the lap truss (55) is arranged with an anti-collision wheel (57).

6. The additional elevator system for an existing building according to claim 1, characterized in that: A vertical guide rail (11) is arranged on the inner wall of the elevator room (10), an electromagnetic unit is installed on the vertical guide rail (11), and a telescopic positioning pin which is in a retracted state under normal conditions is arranged on the elevator (20); when the elevator (20) moves along the vertical guide rail (11) to a designated floor, the electromagnetic unit is activated to absorb the telescopic positioning pin to extend and snap into a preset positioning hole on the vertical guide rail (11).

7. The additional elevator system for an existing building according to claim 1, characterized in that: A group of corridor bridge units is formed by a telescopic long corridor bridge (40), a fixed short corridor bridge (50) and a rotating disk (30). The corridor bridge units are in two groups and are symmetrically distributed on both sides of the elevator (20).

8. A control method for an existing building external elevator system according to claim 1, characterized in that: When a person needs to enter the {i-0.5}th floor {i is an integer}, the steps are as follows: 1) After entering the elevator, select the floor platform you want to go to, which is the {i-0.5}th floor platform (c); 2) The elevator control unit lifts the elevator (20) to the platform of the {i-0.5}th floor and stops; 3) The elevator control unit controls the electromagnet to generate suction force, so that the telescopic positioning pin is inserted into the positioning hole, thereby fixing the elevator (20); 4) The rotating disk (30) starts to move, driving the fixed short corridor bridge (50) to rotate 90 degrees counterclockwise to a horizontal upright state; when the fixed short corridor bridge (50) rotates, the overlapping truss (55) is pre-hinged under the action of the overlapping hydraulic cylinder (56) to avoid the staircase ring beam (b), and resets after crossing the staircase ring beam (b) so as to be placed on the staircase ring beam (b) from top to bottom; 5) The second hydraulic cylinder (52) is activated to drive the fixed short gallery bridge (50) to generate a flipping motion along the second vertical hinge axis (32), so that the fixed short gallery bridge (50) is placed flat on the staircase ring beam (b); 6) After the detection sensor checks that the corridor bridge is intact, it sends a signal to the elevator control unit, the elevator door opens, and the personnel enter the {i-0.5}th floor platform through the fixed short corridor bridge (50); 7) The detection sensor is started again, and after checking that there is no person or object on the corridor bridge, a bridge retraction signal is sent to the elevator control unit to retract the corridor bridge, and the rotating disk (30) rotates 90° clockwise and drives the fixed short corridor bridge (50) to return to the initial vertical vertical state; When a person needs to enter the i-th floor {i is an integer}, the steps are as follows: 1) After entering the elevator, select the desired inter-floor rest platform in the elevator, which is the inter-floor rest platform on the i-th floor (d); 2) the elevator control unit lifts the lift (20) to the i-th inter-floor rest platform and stops; 3) The elevator control unit controls the electromagnet to generate suction force, so that the telescopic positioning pin is inserted into the positioning hole, thereby fixing the elevator (20); 4) The rotating disk (30) starts to move, driving the telescopic gallery bridge (40) to rotate 90° clockwise to a horizontal upright state and rest on the outer staircase ring beam (b) from top to bottom; 5) The extension section (42) begins to extend relative to the fixed section (41) until the head end of the extension section (42) rests on the floor platform beam (a) of the inner layer; 6) The first hydraulic cylinder (44) is activated to drive the telescopic gallery bridge (40) to generate a flipping motion along the first vertical hinge axis (31), so that the telescopic gallery bridge (40) is placed flat on the staircase ring beam (b) and the floor platform beam (a); 7) After the detection sensor checks that the gallery bridge is intact, it sends a signal to the elevator control unit, the elevator door opens, and the personnel enter the i-th floor rest platform through the retractable gallery bridge (40); 8) The detection sensor is started again, and after checking that there is no person or object on the corridor bridge, a bridge retraction signal is sent to the elevator control unit to retract the corridor bridge. The turntable (30) rotates 90° counterclockwise and drives the telescopic corridor bridge (40) to return to the initial vertical vertical state.

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