Staircase structure for installing elevator in staircase

Abstract

The invention discloses a staircase structure for installing an elevator in a staircase, and the staircase structure can be arranged in the staircase of an old community. The elevator shaft is arranged close to the stairway on one side and does not occupy a stairway platform in the middle of the stairway, the stairway located at the position of the elevator shaft is a folding stairway, and the folding part can be erected to be parallel to the elevator shaft when the stairway is not used. When the stair needs to be used, the elevator car can be placed on the bottom layer or the top layer, the foldable part vertically arranged outside the elevator is put down, the stair with the foldable part enters the elevator shaft, the stair with the foldable part abuts against the wall in the elevator shaft, and the travel is stably supported so that the requirements of fire fighting, emergency and escape can be met.

Description

Technical Field

[0001] The invention relates to a staircase structure in a building decoration project, in particular to a movable folding staircase. Background Art

[0002] With the maturity and development of technology, elevators have changed from expensive luxury items in the early days to building components that can be seen everywhere in buildings and are closely related to residents' daily travel. However, the service life of houses is relatively long. In some communities that were built earlier, the price of elevators was high at the time of construction, so elevators were not installed but only stairwells, and residents travel by stairs on a daily basis.

[0003] Due to the accelerated aging process and the improvement of living standards, some fifth- and sixth-floor residential areas are not very high, but for some elderly residents, going up and down the stairs still consumes a lot of physical strength and is difficult. Although there are designs for retrofitting old residential areas with elevators in the prior art, it requires a large enough space to be reserved in the stairwell for upgrading and renovation, such as the "An integrated building structure for flat-floor entrance elevators and steps installed in old house renovation" disclosed in announcement number CN118774446A. This patent discloses a structural design for retrofitting stairs in old residential areas with elevators, which is to install a foldable staircase and elevator on the outside of the building.

[0004] For residential communities with a high density of buildings, it may not be possible to install an elevator outside the building, or it may occupy roads and other places. In addition, if the elevator is outside the building, the maintenance cost will be high, the maintenance cycle will be short, and maintenance will be more frequent. Summary of the invention

[0005] The purpose of the present invention is to transform the two-flight staircase inside the residential area so that the staircase on one side can be folded and a small elevator can be installed. A further purpose of the present invention is to have an opening toward the folding staircase of the small elevator. When the elevator is not in use, the folding staircase can be directly folded into the interior of the elevator, and residents can go up and down the stairs by the stairs, and it can also be used for fire escape, etc. Another purpose of the present invention is that the elevator is not easy to be flipped and released after being folded, and the folded part of the elevator is stable and reliable after being folded.

[0006] The present invention achieves the above technical objectives through the following technical means.

[0007] A staircase structure with an elevator installed in a stairwell comprises a floor and an elevator shaft, wherein the elevator shaft is in contact with the floor, a fixed staircase and a folding staircase are provided between the floors of two adjacent floors, and a staircase platform is provided to connect the fixed staircase and the folding staircase.

[0008] The folding staircase is provided with a foldable part connected with a fixed support part, and the width of the foldable part is smaller than that of the elevator shaft.

[0009] Furthermore, a turning connecting rod is provided between the foldable part and the fixed support part.

[0010] When the elevator is in use, the bottom surface of the foldable part is located outside the hoistway of the elevator shaft and is parallel to the outer wall of the elevator shaft, or the foldable part is slightly inclined toward a side away from the outer wall of the elevator shaft.

[0011] Preferably, the elevator shaft is located on one side of the floor, and an outward-opening elevator front door is provided at a position of the elevator shaft close to the floor, and the space between the elevator front doors of two adjacent floors is a wall between the doors of the upper and lower floors.

[0012] The end of the foldable part is the elevator shaft contact part. When the stairs are in use, the foldable part is put down and the elevator shaft contact part is against the wall between the upper and lower doors.

[0013] Preferably, the fixed support part is provided with a rotating groove connected to the connecting rod at the flipping position, the turning point of the rotating groove is arc-shaped, the rotating groove near the lower side is a lowering cooperation position, and the rotating groove near the upper side is a folding limit position, and the angle between the lowering cooperation position and the folding limit position is an acute angle.

[0014] Preferably, a rotation center is provided at a connection position between the fixed support portion and the turning connection rod, and a keyway is provided on the fixed support portion and the turning connection rod.

[0015] Furthermore, an elevator shaft back opening is provided at the back of the elevator shaft, and the elevator shaft back opening completely penetrates the elevator shaft from bottom to top, the width of the foldable part is smaller than the width of the elevator shaft back opening, and the width of the fixed support part is larger than the width of the elevator shaft back opening.

[0016] Preferably, the width of the elevator shaft is not less than the width of the folding staircase, the elevator shaft and the fixed staircase are arranged side by side, and a gap is provided between the elevator shaft and the fixed staircase.

[0017] Preferably, the foldable portion is fixedly connected to the connecting rod at the flipping position, and the foldable portion and the connecting rod at the flipping position do not rotate relative to each other.

[0018] Preferably, the foldable part is symmetrically provided with connecting grooves, and the connecting grooves are parallel to the side walls of the elevator shaft.

[0019] The fixed support part is symmetrically provided with rotation slots, the rotation slots are parallel to the side walls of the elevator shaft, the connection slots correspond to the rotation slots one by one, and the two side surfaces of a corresponding group of the connection slots and the rotation slots are respectively coplanar.

[0020] Preferably, the fixed support part of the folding staircase is connected to the stair platform, the foldable part cooperates with the stair platform of the upper floor or the stair platform of the lower floor, and the foldable parts in the same stairwell all cooperate with the stair platform of the upper floor or the stair platform of the lower floor.

[0021] The present invention has the following gain effects: A staircase structure of the present invention can be arranged in the stairwell of an old residential area. The elevator shaft is arranged close to the staircase on one side, and does not encroach on the staircase platform in the middle of the staircase. The staircase located at the elevator shaft is a folding staircase, and the foldable part can be erected parallel to the elevator shaft when the staircase is not in use. When the staircase needs to be used, the elevator car can be placed on the bottom or top floor, and the foldable part erected outside the elevator can be lowered, so that the foldable part of the staircase can enter the elevator shaft, and the foldable part of the staircase can be placed against the wall in the elevator shaft, so that the travel is firmly supported to meet the needs of fire fighting, emergency and escape. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the main structure of the present invention.

[0024] Figure 3 It is a schematic diagram of the rear view structure after the floor is hidden in the present invention.

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the elevator shaft position of the present invention.

[0026] Figure 5 It is a schematic diagram of the cross-sectional structure at the connection position between the foldable part and the fixed support part of the present invention.

[0027] Figure 6 for Figure 5 A partial enlarged view of point A in the middle.

[0028] Figure 7 for Figure 5 A partial enlarged view of point B in the middle.

[0029] In the figure, 1-floor surface, 2-elevator shaft, 21-back of elevator shaft, 211-back opening of elevator shaft, 22-front door of elevator, 23-wall between upper and lower doors, 24-shaft, 3-fixed stairs, 4-folding stairs, 41-foldable part, 411-contact part of elevator shaft, 42-fixed supporting part, 43-connecting rod at flipping point, 44-rotation center, 441-key slot, 45-rotation slot, 451-lowering matching point, 452-folding limit point, 46-connecting slot. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0031] Embodiment 1: like Figures 1 to 7 As shown, the present invention discloses a staircase structure that can be set in the stairwell of an old residential area. The elevator shaft 2 is set close to the staircase on one side, and does not encroach on the staircase platform 5 in the middle of the staircase. The staircase located at the elevator shaft 2 is a folding staircase 4. When the staircase is not in use, the foldable part 41 can be erected parallel to the elevator shaft 2. When the staircase needs to be used, the elevator car can be placed on the top or bottom floor, and the foldable part 41 erected outside the elevator can be put down, so that the staircase of the foldable part 41 can enter the interior of the elevator shaft 2, and the staircase of the foldable part 41 can be against the wall in the elevator shaft 2, and the travel is firmly supported to meet the needs of fire fighting, emergency and escape.

[0032] The staircase structure of the present invention is mainly composed of a floor 1, an elevator shaft 2, a fixed staircase 3, a folding staircase 4 and a staircase platform 5. The floor 1 is a horizontal load-bearing structure of each floor of the building, providing support for the elevator shaft 2 and the staircase. The elevator shaft 2 is located on one side of the floor 1, in direct contact with the floor 1, and is used to install elevator equipment. In this embodiment, there are three floors in total, so the floor 1 has three layers, and the elevator shaft 2 is provided with an opening door on each floor 1.

[0033] The fixed staircase 3 is located opposite to the elevator shaft 2 on the other side of the elevator shaft 2, providing residents with different options for going up and down the stairs. It should be noted that the elevator and the staircase cannot be used at the same time in the present invention. When using the stairs, the elevator needs to be closed. When using the elevator, the folding staircase 4 needs to be folded up, and residents cannot go up and down the stairs. The staircase platform 5 is located between the fixed staircase 3 and the folding staircase 4. It is a traditional two-flight staircase design, which provides a middle rest platform for users when going up and down the stairs.

[0034] The folding staircase 4 is composed of a foldable part 41 and a fixed support part 42. The width of the foldable part 41 is smaller than that of the elevator shaft 2, so that the staircase can be folded and stored when not in use, saving space. The fixed support part 42 provides a stable support for the foldable part 41. The connecting rod 43 at the turning point connects the foldable part 41 and the fixed support part 42 to realize the turning of the foldable part 41 and transmit force to the fixed support part 42.

[0035] The elevator shaft 2 is installed by the foldable staircase structure of the present invention, which is located on the floor 1 and contacts one side of the floor. Because the elevator shaft 2 is remodeled based on the staircase structure of the building in the old community, there is no reserved installation space for the elevator shaft. Therefore, it is necessary to remodel the original staircase to obtain space for installing the elevator shaft 2.

[0036] Because the space of the stairwell itself is only for the residents to go up and down, the elevator shaft 2 is designed to control the size of the elevator car to be small, only occupying the space of the staircase on one side, and not interfering with the staircase on the other side. Because the elevator shaft 2 is newly installed and manufactured later, the support structure of the elevator shaft 2 can be cast with reinforced concrete or built with a steel structure frame.

[0037] Because the size of the shaft is small, the load of the elevator is small, and the support bearing capacity requirement of the elevator shaft 2 is small, so it is easy to design and install the elevator shaft 2. It is also convenient and simple to maintain, the structure is stable and reliable, the cost is low, and there is no need to wait for the solidification of the concrete, and the installation has little impact on the daily travel of the residents. Because the foldable part 41 is easy to collide and interfere with the elevator car, that is, the structure of the passenger seat, when the stairs are lowered and the foldable part 41 of the stairs 4 is folded, the elevator car needs to be placed on the bottom or top floor.

[0038] When it is necessary to lower the foldable part 41, most of the elevator car is placed in the cavity. At this time, lowering the foldable part 41 will not cause collision and interference with the elevator car. At the same time, when lowering the foldable part 41, the elevator needs to be powered off before lowering the foldable part 41 to avoid the elevator starting suddenly and colliding with the folding staircase 4, thereby damaging the elevator and the staircase.

[0039] The internal space of the elevator shaft 2 is provided with an elevator front door 22 in front of each floor interval for passengers to enter and exit the elevator. The elevator front door 22 is designed to open outwards, and the opening method and door structure are simple, which is easy to install and occupies less space in the elevator shaft 2. And for installation considerations, the elevator front door 22 can adopt a magnetic suction door, which is sucked after closing. It requires an elevator on this floor and a card swiping outside or inside the elevator on this floor to open it. Avoid uninformed residents from falling and other dangerous accidents after opening the elevator front door 22 on a floor where no elevator is parked. The area between the elevator front doors 22 of two adjacent floors is called the upper and lower door wall 23, which is located between the upper and lower elevator front doors 22 and can provide support for the foldable part 41.

[0040] The fixed staircase 3 is a half staircase retained according to the staircase structure of the original stairwell, and the staircase structure that is completely retained together with the fixed staircase 3 is the staircase platform 5. The fixed staircase 3 is connected to the staircase platform 5 from the current floor ground 1. The fixed staircase 3 alone cannot fully realize the function of going up and down the stairs. Therefore, it can only be combined with the foldable part 41 that is turned down to form a complete up and down staircase, so that residents can use the stairs to go up and down the stairs. When the foldable part 41 is folded up, the fixed staircase 3 cannot perform the function of going up and down the stairs. A handrail can be installed at the position where the fixed staircase 3 is not connected to the building wall. The handrail should stand on the fixed staircase 3, and the projection of the handrail needs to be located on the staircase 3 to reduce the occupied plane area.

[0041] The folding staircase 4 is the main technical means used by the present invention to achieve the purpose of the invention. The folding staircase 4 is composed of a foldable part 41 and a fixed support part 42. An elevator shaft back opening 211 is provided at the elevator shaft back 21 of the elevator shaft 2. The opening direction of the elevator shaft back opening 211 is opposite to the opening direction of the elevator front door 22. The width of the foldable part 41 is smaller than that of the elevator shaft 2, and is also smaller than the opening width of the elevator shaft back opening 211.

[0042] Therefore, the foldable part 41 can easily pass through the elevator shaft back opening 211 of the elevator shaft 2 and be laid down to enter the shaft 2 of the elevator shaft 2 and connect to the floor 1 of a higher floor, thus playing the role of stairs for going up and down stairs. The fixed support part 42, as a supporting structure connected to the foldable part 41, has a width greater than that of the elevator shaft 2, thereby increasing the width of the stairs and making the connection support between the foldable part 41 and the fixed support part 42 more firm and reliable.

[0043] Because the reinforced concrete staircase has high hardness, but is fragile, and cannot be made into a hollow structure with sufficient strength, and has a large mass. The foldable part 41 needs to be folded and needs to be able to withstand long-term trampling, but it is made of only two turning connecting rods 43, so the foldable part 41 needs strong tensile strength and compressive strength. Therefore, the foldable part is required to have a smaller mass and greater strength, so the foldable part 41 can be made into a staircase using steel, such as galvanized square steel, etc., to meet the strength requirements of the foldable part 41 during use and extend the service life of the foldable part 41.

[0044] The flipping mechanism of the folding staircase 4 is realized by the flipping connecting rod 43. The flipping connecting rod 43 connects the foldable part 41 and the fixed support part 42, so that the two can be quickly switched between the two states of folding and lowering. When it is needed, the foldable part 41 can be lowered around the rotation center 44 on the fixed support part 42 through the flipping connecting rod 43, and connected to the floor 1 of the upper floor, so that the folding staircase 4, the fixed staircase 3 and the stair platform 5 form a complete staircase that can be walked up and down, and play the role of the staircase to meet the needs of fire safety. When it is not needed, the foldable part 41 can be folded up to the outside of the elevator shaft 2, perpendicular to the wall of the elevator shaft 2, so that the elevator shaft 2 can use the internal elevator car to transport residents up and down.

[0045] Embodiment 2: The main scheme of this embodiment is similar to that of Embodiment 1, but differs in details.

[0046] like Figures 1 to 7 As shown, the present invention discloses a staircase structure that can be set in the stairwell of an old residential area. The elevator shaft 2 is set close to the staircase on one side, and does not encroach on the staircase platform 5 in the middle of the staircase. The staircase located at the elevator shaft 2 is a folding staircase 4. When the staircase is not in use, the foldable part 41 can be erected parallel to the elevator shaft 2. When the staircase needs to be used, the elevator car can be placed on the top or bottom floor, and the foldable part 41 erected outside the elevator can be put down, so that the staircase of the foldable part 41 can enter the interior of the elevator shaft 2, and the staircase of the foldable part 41 can be against the wall in the elevator shaft 2, and the travel is firmly supported to meet the needs of fire fighting, emergency and escape.

[0047] The staircase structure of the present invention is mainly composed of a floor 1, an elevator shaft 2, a fixed staircase 3, a folding staircase 4 and a staircase platform 5. The floor 1 is a horizontal load-bearing structure of each floor of the building, providing support for the elevator shaft 2 and the staircase. The elevator shaft 2 is located on one side of the floor 1, in direct contact with the floor 1, and is used to install elevator equipment. In this embodiment, there are three floors in total, so the floor 1 has three layers, and the elevator shaft 2 is provided with an opening door on each floor 1.

[0048] The fixed staircase 3 is located opposite to the elevator shaft 2 on the other side of the elevator shaft 2, providing residents with different options for going up and down the stairs. It should be noted that the elevator and the staircase cannot be used at the same time in the present invention. When using the stairs, the elevator needs to be closed. When using the elevator, the folding staircase 4 needs to be folded up, and residents cannot go up and down the stairs. The staircase platform 5 is located between the fixed staircase 3 and the folding staircase 4. It is a traditional two-flight staircase design, which provides a middle rest platform for users when going up and down the stairs.

[0049] The folding staircase 4 is composed of a foldable part 41 and a fixed support part 42. The width of the foldable part 41 is smaller than that of the elevator shaft 2, so that the staircase can be folded and stored when not in use, saving space. The fixed support part 42 provides a stable support for the foldable part 41. The connecting rod 43 at the turning point connects the foldable part 41 and the fixed support part 42 to realize the turning of the foldable part 41 and transmit force to the fixed support part 42.

[0050] The elevator shaft 2 is installed by the foldable staircase structure of the present invention, which is located on the floor 1 and contacts one side of the floor. Because the elevator shaft 2 is remodeled based on the staircase structure of the building in the old community, there is no reserved installation space for the elevator shaft. Therefore, it is necessary to remodel the original staircase to obtain space for installing the elevator shaft 2.

[0051] Because the space of the stairwell itself is only for the residents to go up and down, the elevator shaft 2 is designed to control the size of the elevator car to be small, only occupying the space of the staircase on one side, and not interfering with the staircase on the other side. Because the elevator shaft 2 is newly installed and manufactured later, the support structure of the elevator shaft 2 can be cast with reinforced concrete or built with a steel structure frame.

[0052] An elevator shaft back 21 of the elevator shaft 2 is provided with an elevator shaft back opening 211 , and the elevator shaft back opening 211 completely penetrates the elevator shaft 2 from bottom to top.

[0053] Because the size of the shaft is small, the load of the elevator is small, and the support bearing capacity requirement of the elevator shaft 2 is small, so it is easy to design and install the elevator shaft 2. It is also convenient and simple to maintain, the structure is stable and reliable, the cost is low, and there is no need to wait for the solidification of the concrete, and the installation has little impact on the daily travel of the residents. Because the foldable part 41 is easy to collide and interfere with the elevator car, that is, the structure of the passenger seat, when the stairs are lowered and the foldable part 41 of the stairs 4 is folded, the elevator car needs to be placed on the bottom or top floor.

[0054] When it is necessary to lower the foldable part 41, most of the elevator car is placed in the cavity. At this time, lowering the foldable part 41 will not cause collision and interference with the elevator car. At the same time, when lowering the foldable part 41, the elevator needs to be powered off before lowering the foldable part 41 to avoid the elevator starting suddenly and colliding with the folding staircase 4, thereby damaging the elevator and the staircase.

[0055] The internal space of the elevator shaft 2 is provided with an elevator front door 22 in front of each floor interval for passengers to enter and exit the elevator. The elevator front door 22 is designed to open outwards, and the opening method and door structure are simple, which is easy to install and occupies less space in the elevator shaft 2. And for installation considerations, the elevator front door 22 can adopt a magnetic suction door, which is sucked after closing. It requires an elevator on this floor and a card swiping outside or inside the elevator on this floor to open it. Avoid uninformed residents from falling and other dangerous accidents after opening the elevator front door 22 on a floor where no elevator is parked. The area between the elevator front doors 22 of two adjacent floors is called the upper and lower door wall 23, which is located between the upper and lower elevator front doors 22 and can provide support for the foldable part 41.

[0056] The fixed staircase 3 is a half staircase retained according to the staircase structure of the original stairwell, and the staircase structure that is completely retained together with the fixed staircase 3 is the staircase platform 5. The fixed staircase 3 is connected to the staircase platform 5 from the current floor ground 1. The fixed staircase 3 alone cannot fully realize the function of going up and down the stairs. Therefore, it can only be combined with the foldable part 41 that is turned down to form a complete up and down staircase, so that residents can use the stairs to go up and down the stairs. When the foldable part 41 is folded up, the fixed staircase 3 cannot perform the function of going up and down the stairs. A handrail can be installed at the position where the fixed staircase 3 is not connected to the building wall. The handrail should stand on the fixed staircase 3, and the projection of the handrail needs to be located on the staircase 3 to reduce the occupied plane area.

[0057] The folding staircase 4 is the main technical means used by the present invention to achieve the purpose of the invention. The folding staircase 4 is composed of a foldable part 41 and a fixed support part 42. An elevator shaft back opening 211 is provided at the elevator shaft back 21 of the elevator shaft 2. The opening direction of the elevator shaft back opening 211 is opposite to the opening direction of the elevator front door 22. The width of the foldable part 41 is smaller than that of the elevator shaft 2, and is also smaller than the opening width of the elevator shaft back opening 211.

[0058] Therefore, the foldable part 41 can easily pass through the elevator shaft back opening 211 of the elevator shaft 2 and be laid down to enter the shaft 2 of the elevator shaft 2 and connect to the floor 1 of a higher floor, thus playing the role of stairs for going up and down stairs. The fixed support part 42, as a supporting structure connected to the foldable part 41, has a width greater than that of the elevator shaft 2, thereby increasing the width of the stairs and making the connection support between the foldable part 41 and the fixed support part 42 more firm and reliable.

[0059] Because the reinforced concrete staircase has high hardness, but is fragile, and cannot be made into a hollow structure with sufficient strength, and has a large mass. The foldable part 41 needs to be folded and needs to be able to withstand long-term trampling, but it is made of only two turning connecting rods 43, so the foldable part 41 needs strong tensile strength and compressive strength. Therefore, the foldable part is required to have a smaller mass and greater strength, so the foldable part 41 can be made into a staircase using steel, such as galvanized square steel, etc., to meet the strength requirements of the foldable part 41 during use and extend the service life of the foldable part 41.

[0060] The flipping mechanism of the folding staircase 4 is realized by the flipping connecting rod 43. The flipping connecting rod 43 connects the foldable part 41 and the fixed support part 42, so that the two can be quickly switched between the two states of folding and lowering. When it is needed, the foldable part 41 can be lowered around the rotation center 44 on the fixed support part 42 through the flipping connecting rod 43, and connected to the floor 1 of the upper floor, so that the folding staircase 4, the fixed staircase 3 and the stair platform 5 form a complete staircase that can be walked up and down, and play the role of the staircase to meet the needs of fire safety. When it is not needed, the foldable part 41 can be folded up to the outside of the elevator shaft 2, perpendicular to the wall of the elevator shaft 2, so that the elevator shaft 2 can use the internal elevator car to transport residents up and down. The upper end of the foldable part 41 is the elevator shaft contact part 411. When the foldable part 41 is flipped down, one side end surface of the elevator shaft contact part 411 will fit on the wall 23 between the upper and lower doors, generating contact transfer pressure, so that the foldable part 41 can remain stable when put down for use, rather than being a cantilever beam support. It is not easy for residents to shake when walking on the foldable part 41, which also extends the service life of the foldable part 41.

[0061] Two connecting grooves 46 are symmetrically arranged on the foldable part 41 and parallel to the side wall of the elevator shaft 2, and are connected to the turning connecting rod 43. The width of the connecting grooves 46 is small, and they occupy a small area on the foldable part 41, and have little effect on the structural strength of the foldable part 41. The connecting groove 46 is connected to one end of the turning connecting rod 43.

[0062] The fixed support portion 42 is also provided with a rotation slot 45 of the same width and the same spacing arrangement method, which is connected to the other end of the flip connecting rod 43. The main part of the flip connecting rod 43 cooperates with the foldable portion 41 and is buried in the foldable portion 41.

[0063] The turning connecting rod 43 is fixedly connected to the foldable part 41, and there is no relative rotation between the two. The turning connecting rod 43 is rotationally connected to the fixed support part 42, and the turning connecting rod 43 cooperates with the rotation slot 45 of the fixed support part 42. The turning connecting rod 43 is connected to the rotation center 44, and a driving assembly and a driving shaft are provided at the rotation center, which can drive the driving shaft to rotate. A key slot 441 is provided on the turning connecting rod 43 at the rotation center 44. Therefore, the driving shaft can drive the turning connecting rod 43 to rotate synchronously.

[0064] An upper limit position is provided on the rotating slot 45, namely, a folding limit position 452. The folding limit position 452 can cooperate with the connecting rod 43 at the flipping position when the foldable part 41 is folded, so as to limit the tendency of the foldable part 41 to fall further backward, so that the foldable part 41 can remain parallel to the elevator shaft 2 or have a smaller angle with it after being folded.

[0065] The rotating slot 45 is also provided with a lower limit, namely, a lowering fitting portion 451. When the foldable portion 41 is completely laid down against the wall surface 23 between the upper and lower doors, in this embodiment, there is an acute angle between the connecting rod 43 at the flipping position and the lowering fitting portion 451. There is also a small gap between the connecting rod 43 at the flipping position and the lowering fitting portion 451, because when the foldable portion 41 is laid down, part of the pressure is borne by the fixed support portion 42 connected thereto, and the other part is shared by the floor surface 1 of the layer in contact with it. Therefore, the connecting rod 43 at the flipping position does not need to be in full contact with the lowering fitting portion 451. The lower fitting portion 451 also has the function of limiting the maximum travel of the foldable portion 41 when the foldable portion 41 cannot contact the wall surface 23 between the upper and lower doors.

[0066] According to the position of the folding staircase 4, there is another folding method of the foldable part 41, in which the angle between the lowering matching part 451 and the folding limit part 452 is an obtuse angle (not specifically drawn in the attached figure), and the angle in the stairwell where the height-to-width ratio of the stairs in the same row is less than 1:1 is less than 135°. At this time, when the foldable part 41 is in the way, its elevator shaft contact part 411 will contact the wall surface 23 between the upper and lower doors of the lower floor, and when folding, the foldable part 41 is still folded upward, so the angle between the lowering matching part 451 of the foldable part 41 and the folding limit part 452 is an obtuse angle. At this time, when the stairs need to be used, the elevator can be lifted to the top floor, locked, and then the folding staircase 4 can be lowered.

[0067] Regardless of whether it is an acute angle or an obtuse angle, the angle between the lowering fitting portion 451 and the folding limit portion 452 can be calculated based on the height-to-width ratio of the stairs in the same row, which will not be further explained here.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A staircase structure with an elevator installed in a stairwell, comprising a floor surface (1) and an elevator shaft (2), characterized in that: The elevator shaft (2) is in contact with the floor surface (1), a fixed staircase (3) and a folding staircase (4) are provided between the floors (1) of two adjacent floors, and a staircase platform (5) is provided between the fixed staircase (3) and the folding staircase (4); The folding staircase (4) is provided with a foldable part (41) connected to a fixed support part (42), and the width of the foldable part (41) is smaller than that of the elevator shaft (2).

2. A staircase structure for installing an elevator in a stairwell according to claim 1, characterized in that: A turning connecting rod (43) is provided between the foldable part (41) and the fixed support part (42); When the elevator is in use, the bottom surface of the foldable portion (41) is located outside the hoistway (24) of the elevator shaft (2) and is parallel to the outer wall of the elevator shaft (2), or the foldable portion (41) is slightly inclined toward a side away from the outer wall of the elevator shaft (2).

3. A staircase structure for installing an elevator in a stairwell according to claim 1, characterized in that: The elevator shaft (2) is located on one side of the floor (1), and an elevator front door (22) opening outward is provided at a position of the elevator shaft (2) close to the floor (1), and a wall (23) between the upper and lower doors is provided between the elevator front doors (22) of two adjacent floors; The end of the foldable part (41) is an elevator shaft contact part (411). When the staircase is in use, the foldable part (41) is put down and the elevator shaft contact part (411) is against the wall surface (23) between the upper and lower doors.

4. A staircase structure for installing an elevator in a stairwell according to claim 2, characterized in that: The fixed support part (42) is provided with a rotation slot (45) connected to the turning connecting rod (43); the turning point of the rotation slot (45) is arc-shaped; the rotation slot (45) is close to the lower side as a lowering matching position (451); the rotation slot (45) is close to the upper side as a retracting limit position (452); and the angle between the lowering matching position (451) and the retracting limit position (452) is an acute angle or an obtuse angle.

5. A staircase structure for installing an elevator in a stairwell according to claim 2, characterized in that: A rotation center (44) is provided at the connection position between the fixed support part (42) and the turning connecting rod (43), and the rotation center (44) is provided with a key groove (441) on the fixed support part (42) and the turning connecting rod (43).

6. A staircase structure for installing an elevator in a stairwell according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The elevator shaft back (21) of the elevator shaft (2) is provided with an elevator shaft back opening (211), and the elevator shaft back opening (211) completely passes through the elevator shaft (2) from bottom to top, the width of the foldable part (41) is smaller than the width of the elevator shaft back opening (211), and the width of the fixed support part (42) is larger than the width of the elevator shaft back opening (211).

7. A staircase structure for installing an elevator in a stairwell according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The width of the elevator shaft (2) is not less than the width of the folding staircase (4); the elevator shaft (2) and the fixed staircase (3) are arranged in parallel, and a gap is provided between the elevator shaft (2) and the fixed staircase (3).

8. A staircase structure for installing an elevator in a stairwell according to claim 2, 3, 4 or 5, characterized in that: The foldable part (41) and the turning connecting rod (43) are fixedly connected, and the foldable part (41) and the turning connecting rod (43) do not rotate relative to each other.

9. A staircase structure for installing an elevator in a stairwell according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The foldable portion (41) is symmetrically provided with connection grooves (46), and the connection grooves (46) are parallel to the side walls of the elevator shaft (2); The fixed support portion (42) is symmetrically provided with rotation slots (45), the rotation slots (45) are parallel to the side walls of the elevator shaft (2), the connection slots (46) and the rotation slots (45) correspond one to one, and the two side surfaces of a corresponding set of the connection slots (46) and the rotation slots (45) are respectively coplanar.

10. A staircase structure for installing an elevator in a stairwell according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The fixed support portion (42) of the folding staircase (4) is connected to the staircase platform (5), and the foldable portion (41) cooperates with the staircase platform (5) on the upper floor or the staircase platform (5) on the lower floor. The foldable portions (41) in the same stairwell all cooperate with the staircase platform (5) on the upper floor or the staircase platform (5) on the lower floor.

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