Shaft structure for installing an elevator in a stairwell

Abstract

The present invention discloses a shaft structure for installing an elevator in a stairwell, which aims to overcome the drawback of existing reversing stairwells, which are unable to switch between stairwell and elevator space, resulting in low space utilization. The invention comprises a shaft structure. The shaft structure includes a shaft frame, a partially reversible stairwell, and a shaft switching mechanism. The stairwell includes a fixed stairwell and a reversible stairwell. The shaft switching mechanism includes a plurality of control motors and drive connecting components, the control motors are installed on the fixed stairwell on each floor, the drive connecting components are installed between the fixed stairwell and the reversible stairwell, and the output shafts of the control motors are drivably connected to the drive connecting components. This allows for switching between the stairwell walking space and the elevator operating space, thereby realizing the dual use of the stairwell for both stairwell walking and elevator operation, and effectively improving the space utilization of the stairwell.

Description

[Technical Field]

[0001] The present invention relates to the technical field of elevator shafts, and more particularly to a shaft structure for installing an elevator in a stairwell. [Background technology]

[0002] For small stairwells, especially those with spiral staircases, the current elevator market needs to be effectively considered, not only to meet traffic requirements, but also to ensure elevator placement and installation.

[0003] The present invention provides a shaft structure that allows an elevator to be installed in a stairwell, and this solution realizes a shaft structure that can be switched from a stairway space to an elevator operating space by using a one-way staircase, thereby effectively improving the space utilization of the stairwell. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention overcomes the drawback of existing spiral staircases, which are unable to switch between staircase space and elevator space, resulting in low space utilization, and provides a shaft structure for installing an elevator in a stairwell, which allows the stairwell to be used for both step walking and elevator operation by switching between the stairwell walking space and the elevator operation space, thereby effectively improving the space utilization rate of the stairwell. [Means for solving the problem]

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions. A shaft structure for installing an elevator in a stairwell, The shaft structure can be switched from a staircase walking space to an elevator operating space. The shaft structure includes a shaft frame, a partially reversible staircase structure, and a shaft switching mechanism; the shaft frame includes a plurality of vertical and horizontal support beams disposed between the bottom and top of the stairwell; A staircase structure is provided between the shaft frames at each floor of the stairwell, which includes a fixed staircase structure and a reversible staircase structure; The shaft switching mechanism includes a plurality of control motors and drive connection components, the control motors are installed on the fixed stair structure of each floor, the drive connection components are installed between the fixed stair structure and the reversible stair structure, and the output shafts of the control motors are drivably connected to the drive connection components.

[0006] In a specific embodiment, when an elevator in a shaft space needs to be used, the shaft switching mechanism is activated, first synchronously activating multiple control motors, which drive the drive connection components connected thereto. The rotation of the drive connection components reverses the reversible stair structure, causing the stair structure to form a vertical connecting channel. The reversible stair structure serves as a rear protective baffle for the shaft structure, allowing the shaft to be used as an elevator for passengers. When the stair space needs to be used, the reversible stair structure is reset to its initial position, and the staircase can then be used as a normal stairway. The present invention significantly improves space utilization by installing an elevator in the space within the staircase without affecting the staircase's passage function.

[0007] Preferably, the driving connection component includes a rotating shaft 1 installed on a fixed staircase structure, a plurality of rotating parts, and a rotating shaft 2 installed on a reversible staircase structure, wherein the output shaft of the control motor is fixedly connected to the rotating shaft 1, and the rotating parts are installed between the rotating shaft 1 and the rotating shaft 2.

[0008] The control motor is fixedly mounted on the side wall of the fixed staircase structure, a rotating shaft 1 is fixedly mounted on the output shaft of the control motor and rotatably connected to the fixed staircase structure, a rotating shaft 2 is rotatably connected to the reversible staircase structure, and there are two rotating parts, which are used to connect both ends of the rotating shaft 1 and the rotating shaft 2 respectively.

[0009] When the control motor is started, the control motor rotates the rotating shaft 1, the rotation of the rotating shaft 1 rotates the two rotating parts, the rotation of the rotating parts rotates the rotating shaft 2, and the rotation of the rotating shaft 2 causes the reversible stair structure connected thereto to rotate based on the fixed stair structure.

[0010] Preferably, the shaft structure is installed in a step staircase, one end of the fixed staircase structure is fixedly connected to the step stair platform, and the other end of the fixed staircase structure is rotatably connected to the reversible staircase structure. The staircase is composed of a series of steps, landings, handrail posts, etc., and the staircase structure is modified to form a normal walking staircase and a part of the rear side wall baffle of the shaft by vertically reversing it for safety protection.

[0011] Preferably, the shaft structure is installed on the landing, the fixed stair structure is the main structure of the landing, and the reversible stair structure is a rectangular reversal plate cut out from the landing, and the rectangular reversal plate and the main structure are rotatably connected. The stair structure can be realized for normal use by changing the landing, and can also be vertically reversed to form part of the rear sidewall baffle of the shaft for safety protection.

[0012] Preferably, a partition reversing mechanism is provided under the fixed stair structure, which includes a drive motor 1 and a reversing plate installed on the drive motor 1. The drive motor 1 is fixedly installed on the side of the fixed stair structure close to the reversible stair structure, and a drive rotating shaft is fixedly installed on the output shaft of the drive motor 1, which is fixedly connected to the reversing plate. When the stair space needs to be converted into a shaft space for elevator installation, the drive motor 1 is started, and the rotation of the drive motor 1 rotates the drive rotating shaft, which in turn rotates the reversing plate, which can be combined with the reversible stair structure below to form a rear baffle for the shaft frame within the corresponding floor for safety protection.

[0013] Preferably, the shaft frame also includes a first horizontal connecting beam and a second horizontal connecting beam, a landing door assembly is provided between the first horizontal connecting beam and the second horizontal connecting beam, and the landing door assembly includes a door frame, two landing doors provided in the door frame, and a door closer provided between the door frame and the landing door. The vertical support beams on the same side are fixedly connected by a plurality of first horizontal connecting beams, and a second horizontal connecting beam and a third horizontal connecting beam are attached between two vertical support beams on sides facing the landing between the same floors, and the second horizontal connecting beam and the third horizontal connecting beam function as upper and lower support members for the landing door assembly, respectively.

[0014] Preferably, a first reversible step mechanism is provided on the other end side of the reversible stair structure away from the fixed stair structure, and the first reversible step mechanism includes a drive motor 2, a first reversible step, and a plurality of step connectors, the step connectors are provided between the reversible stair structure and the first reversible step, and the output shaft of the drive motor 2 is connected to the step connectors.

[0015] Preferably, limiting grooves are provided in the walls on both sides of the reversible step, which limit the rotation angle of the step connector, thereby controlling the position of the reversible step.

[0016] Preferably, one side of the shaft frame is provided with a bracket to which both the car guide rail and counterweight can be attached. A guide rail bracket is also provided between the vertical support beam and the car guide rail. [Effects of the Invention]

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The shaft structure can achieve switching between the stair space and the shaft space for elevator installation by the partially reversible stair structure on the same side, so that the elevator can be installed in the stairwell space without affecting the function of stair walking, and greatly improves the space utilization rate. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a structural schematic diagram of a shaft structure for installing an elevator in a stairwell in the present invention. [Figure 2] FIG. 2 is a structural schematic diagram of the shaft structure of the ascending staircase in the present invention. [Figure 3] FIG. 2 is a structural schematic diagram of the shaft structure of the descending stairs in the present invention. [Figure 4] FIG. 2 is a structural schematic diagram of the shaft structure in the landing of the present invention. [Figure 5] 1 is a structural schematic diagram of a staircase structure of a descending staircase of the present invention; [Figure 6] FIG. 2 is a structural schematic diagram of the state 1 of the reversible staircase structure of the present invention. [Figure 7] FIG. 2 is a structural schematic diagram of the state 1 of the reversible staircase structure of the present invention. [Figure 8] 1 is a landing in a structural schematic diagram of the staircase structure of the ascending staircase of the present invention. [Figure 9] 1 is a structural schematic diagram of a shaft frame of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0019] The technical solutions of the present invention will be described in more detail below through specific embodiments in conjunction with the accompanying drawings. Example 1 As shown in Figures 1 to 9, a shaft structure for installing an elevator in a stairwell includes a shaft structure 100 that can be switched from a stairway walkway to an elevator operating space. The shaft structure 100 includes a shaft frame 101, a partially reversible stairwell structure 200, and a shaft switching mechanism 300. The shaft frame 101 includes a plurality of vertical support beams 102 and horizontal support beams disposed between the bottom and top of the stairwell. The stairwell structure 200 is disposed between the shaft frames 101 on each floor of the stairwell, and includes a fixed stairwell structure 201 and a reversible stairwell structure 202. The shaft switching mechanism 300 includes a plurality of control motors 301 and drive connection components 302. The control motors 301 are installed on the fixed stairwell structure 201 on each floor, and the drive connection components 302 are installed between the fixed stairwell structure 201 and the reversible stairwell structure 202, and the output shafts of the control motors 301 are drivingly connected to the drive connection components 302.

[0020] The horizontal support beams include a first horizontal connecting beam 103, a second horizontal connecting beam 104, and a third horizontal connecting beam 105. A landing door assembly 400 is provided in the corresponding landing lobby of each floor. The first horizontal connecting beam 103 and the second horizontal connecting beam 104 are support connectors provided above and below the landing door assembly 400. Both ends of the first horizontal connecting beam 103 and the second horizontal connecting beam 104 are fixedly connected to the vertical support beams 102 on both sides, respectively. There are a total of four vertical support beams 102, with two on each side of the staircase on the same side. The third horizontal connecting beam 105 is installed on top of the two vertical support beams 102 on the same side to increase the connection strength. Upper mounting brackets 107 are attached to the tops of the four vertical support beams 102, and the elevator structure can be installed between the four vertical support beams 102. A counterweight bracket 109 is provided on one side of the shaft frame to which both the car guide rail 108 and a counterweight can be attached, and a guide rail bracket 110 is also provided between the vertical support beam 102 and the car guide rail 108.

[0021] The drive connection component 302 includes a first rotating shaft (303) installed on the fixed staircase structure 201, a plurality of rotating parts 304, and a second rotating shaft (305) installed on the reversible staircase structure 202. The output shaft of the control motor 301 is fixedly connected to the first rotating shaft (303), and the rotating part 304 is installed between the first rotating shaft (303) and the second rotating shaft (305). The control motor 301 is fixedly mounted on the side wall of the fixed staircase structure 201, the first rotating shaft (303) rotatably connected to the fixed staircase structure 201 is fixedly mounted on the output shaft of the control motor 301, and the second rotating shaft (305) is rotatably connected to the reversible staircase structure 202. There are two rotating parts 304, which are used to connect both ends of the first rotating shaft (303) and the second rotating shaft (305), respectively.

[0022] When the control motor 301 is started, the control motor 301 rotates the rotating shaft 1 (303), the rotation of the rotating shaft 1 (303) rotates the two rotating parts 304, the rotation of the rotating part 304 rotates the rotating shaft 2 (305), and the rotation of the rotating shaft 2 (305) causes the reversible stair structure 202 connected to it to rotate based on the fixed stair structure 201.

[0023] If an elevator is installed and is the only means of access to the building, A) When the fire function is activated (the elevator is not operating and only the stairs are used as an access route), the fire button is pressed, the car automatically travels to the confirmation position, the reversible stair structure 202 on each floor is activated, and when the reversible stair structure 202 touches each position switch, the door lock of the landing door assembly is constantly locked, making it possible to manually push the door outward, while the door can be kept closed by the door closer, allowing people to enter and exit via the stairs.

[0024] B) In the event of a power outage, the elevator's battery will activate and provide power.

[0025] C) In the event of an elevator malfunction, if normal elevator operation cannot be restored within a short time, the manual brake release can be activated on the first floor, and the difference in weight between the car and the counterweight can be used to raise the elevator to the top floor, creating space for the stairs to be reversed.

[0026] Specific Embodiments The shaft structure 100 of the present invention can switch between the staircase space and the shaft space for elevator installation by using the partially reversible staircase structure 200 on the same side. When the elevator in the shaft space needs to be used, the shaft switching mechanism 300 needs to be activated. The control motors 301 are first synchronously activated. The control motor 301 then drives the first rotating shaft 303, which rotates the two rotating components 304. The rotation of the second rotating component 304 then rotates the second rotating shaft 205. The rotation of the second rotating shaft 205 causes the connected reversible staircase structure 202 to rotate on the fixed staircase structure 201, thereby forming a vertical connecting channel. The reversible staircase structure 202 serves as a rear protective baffle for the shaft structure 100, allowing the shaft to be used as an elevator for passengers. When the staircase space needs to be used, the reversible staircase structure 202 is reset to its initial position, and the staircase can then be used as a normal staircase passage. The present invention significantly improves space utilization by installing an elevator in the space inside the stairwell without affecting the passage function of the stairwell.

[0027] Specific Example 2 As shown in Figures 1 to 3 and Figures 5 to 8, this embodiment is a further limitation of the stair structure in specific embodiment 1, in which a shaft structure 100 is provided on a step staircase, the shaft structure 100 is divided into a stair structure for ascending stairs and a stair structure for descending stairs, and the landing lobby is composed of a floor platform 107 and a landing 106. For the stair structure for ascending stairs, one end of a fixed stair structure 201 is fixedly connected to the floor platform, and the other end of the fixed stair structure 201 is rotatably connected to a reversible stair structure 202, and the stair structure for ascending stairs is reversed by the control motor in embodiment 1 via the driving connection component 302. As shown in FIG. 8, the following driving method can also be used: two motor mounting brackets 306 are fixed to the fixed stair structure, a linear motor 307 is installed on the elevator mounting bracket, and a telescopic rod assembly is installed on the output shaft of the linear motor 307. The telescopic rod assembly 308 includes a telescopic sleeve 308 and a telescopic rod 309 slidably installed in the telescopic sleeve 308, and the end of the telescopic rod 309 is slidably connected to a waist hole provided in the middle of the rotating part 304. When the reversible stair structure 202 of the ascending staircase needs to be reversed, the linear motor 307 is first started, and the rotation of the linear motor 307 causes the telescopic rod 309 in the telescopic sleeve 308 to perform a linear extension and contraction movement, thereby driving the reversible stair structure 202 to reverse according to the rotation axis 303 on the fixed stair structure 201. For the descending staircase structure, one end of the fixed staircase structure 201 is fixedly connected to the landing 106, and the other end of the fixed staircase structure 201 is rotatably connected to the reversible staircase structure 202. The descending staircase structure 201 reverses the drive connection component 302 using the control motor in Example 1, and at the same time, it can also be replaced with a drive structure driven by the linear motor 307 of the ascending staircase, which is used to control the reversal of the reversible staircase structure 202 in the staircase structure. The staircase is composed of continuous treads, landings 106, handrail posts, etc., and the staircase structure is an improved step staircase that can be reversed vertically to form part of the rear sidewall baffle of the shaft for safety protection.

[0028] Specific Example 3 As shown in Figure 4, this embodiment is a further modification of the staircase structure in specific embodiment 1, in which the shaft structure 100 is installed on the landing 106, the fixed staircase structure 201 is the main structure of the landing 106, the reversible staircase structure 202 is a rectangular reversible plate 203 cut out from the landing 106, and the rectangular reversible plate and the main structure are rotatably connected, and the driving motor 3 (204) is fixed to the landing 106, and the rectangular reversible plate 203 is fixed to the output shaft of the driving motor 3 (204). The staircase structure can be used normally by modifying the platform part, and can also be vertically reversible to form part of the rear sidewall baffle of the shaft for safety protection.

[0029] Specific Example 4 As shown in Figures 1, 3, 5, 6 and 7, this embodiment adds a partition reversal mechanism 500 based on specific embodiment 1, and the partition reversal mechanism 500 is installed on the underside of the fixed stair structure, and includes a motor mount 501, a driving motor 1 (502) installed on the motor mount 501, and a reversal plate 503 installed on the driving motor 1 (502), and the reversal plate 503 is installed parallel to the underside of the step staircase when not in use. The drive motor 1 (502) is fixedly installed on the side of the fixed stair structure 201 near the reversible stair structure 202, and a drive rotating shaft 504 is fixedly installed on the output shaft of the drive motor 1 (502), and the drive rotating shaft 504 is fixedly connected to the reversing plate 503. When the stair space needs to be converted into a shaft space for elevator installation, the drive motor 1 (502) is started, and the rotation of the drive motor 1 (502) rotates the drive rotating shaft 504, which rotates the reversing plate 503, which can be combined with the reversible stair structure 201 below to form a rear baffle for the shaft frame 101 in the corresponding floor for safety protection.

[0030] Specific Example 5 1 to 6 , the shaft frame 101 also includes a first horizontal connecting beam 103, a second horizontal connecting beam 104, and a third horizontal connecting beam 105. The vertical support beams 102 on the same side are fixedly connected by a plurality of first horizontal connecting beams 103, and the second horizontal connecting beam 104 and the third horizontal connecting beam 105 are attached between two vertical support beams 202 on the sides facing the landing 106 between the same floors, and the second horizontal connecting beam 104 and the third horizontal connecting beam 105 function as support members for the upper and lower parts of the landing door assembly 400, respectively. The landing door assembly 400 includes a door frame 401, two landing doors 402 provided in the door frame 401, and a door closer 403 provided between the door frame 401 and the landing door 402. When the door is opened, the door closer 403 on the landing door 402 automatically closes the door by compressing and releasing a hydraulic device. The hydraulic system is similar to a spring door, ensuring that the door closes accurately and quickly to its initial position after opening.

[0031] Specific Example 6 As shown in Figures 1-6, a first reversible step mechanism 600 is provided at the other end of the reversible stair structure 202, away from the fixed stair structure 201. The first reversible step mechanism 600 includes a drive motor 2 (601), a first reversible step 602, and a number of step connectors 603. The step connector 603 is provided between the reversible stair structure 202 and the first reversible step 602, and the output shaft of the drive motor 2 (601) is connected to the step connector 603. Reversible step 202 has limiting grooves 604 in its walls on both sides. The limiting grooves 604 limit the rotation angle of the step connectors, thereby controlling the position of the reversible step 202. The difference between the ascending and descending stairs is that the first reversible step mechanism 600 is only attached to the end step of the reversible stair structure 202 of the descending stairs.

[0032] When the elevator in the shaft space needs to be used, the shaft switching mechanism 300 needs to be activated. First, the multiple control motors 301 are synchronously activated. The activation of the control motor 301 rotates the first rotating shaft (303), the rotation of the first rotating shaft (303) rotates the two rotating parts 304, the rotation of the rotating part 304 rotates the second rotating shaft (305), and the rotation of the second rotating shaft (305) causes the reversible stair structure 202 connected thereto to be reversed based on the fixed stair structure 201, so that the stair structure 200 forms a vertical connecting channel. The reversible stair structure 202 functions as a rear protective baffle for the shaft structure 100, and when the reversible stair structure 202 is reversed, the first reversible step mechanism 600 is activated, i.e., the drive motor 2 (601) is started, and the drive motor 2 (601) rotates one of the two step connectors 603, so that the rotating one abuts against the upper wall of the limiting groove 604, and the rotation of the step connector 603 rotates the first reversible step 602 to the upper limit position, and the first reversible step 602 is reversed at a slight angle to avoid protective interference of the reversible stair structure 202. When the stair space needs to be used, the reversible stair structure 202 is reset to its initial position, and at this time, the first reversible step mechanism 600 is activated, i.e., the drive motor 2 (601) is started, and the drive motor 2 (601) rotates one of the two step connectors 603, so that the rotating one abuts against the lower wall of the limiting groove 604, and the rotation of the step connector 603 rotates the first reversible step 602 to its lowest position, and the first reversible step 602 is used as a connecting step between the floor platform 107 and the reversible stair structure 202 in the stair structure 200, and the staircase can be used as a normal stair passage.

[0033] The above embodiments are merely preferred solutions of the present invention and are not intended to limit the present invention in any way, and other variations and modifications are possible within the scope of the technical solutions described in the claims.

[0034] (Addendum) (Appendix 1) A shaft structure for installing an elevator in a stairwell, The shaft structure can be switched from a staircase walking space to an elevator operating space. The shaft structure includes a shaft frame, a partially reversible staircase structure, and a shaft switching mechanism; the shaft frame includes a plurality of vertical and horizontal support beams disposed between the bottom and top of the stairwell; A staircase structure is provided between the shaft frames at each floor of the stairwell, which includes a fixed staircase structure and a reversible staircase structure; The shaft switching mechanism includes a plurality of control motors and a driving connection component, the control motors are installed on the fixed stair structure of each floor, the driving connection component is installed between the fixed stair structure and the reversible stair structure, and the output shaft of the control motor is drivingly connected to the driving connection component; A shaft structure for installing an elevator in a stairwell, characterized in that

[0035] (Appendix 2) The driving connection component includes a rotating shaft 1 installed on a fixed staircase structure, a plurality of rotating parts, and a rotating shaft 2 installed on a reversible staircase structure, wherein the output shaft of the control motor is fixedly connected to the rotating shaft 1, and the rotating parts are installed between the rotating shaft 1 and the rotating shaft 2; 2. A shaft structure for installing an elevator in a stairwell as described in appendix 1.

[0036] (Appendix 3) The shaft structure is installed on the step staircase, one end of the fixed staircase structure is fixedly connected to the step stair platform, and the other end of the fixed staircase structure is rotatably connected to the reversible staircase structure; 3. A shaft structure for installing an elevator in a stairwell according to claim 1 or 2.

[0037] (Appendix 4) The shaft structure is installed on the landing, the fixed stair structure is the main structure of the landing, and the reversible stair structure is a rectangular reversible plate cut out from the landing, and the rectangular reversible plate and the main structure are rotatably connected; 2. A shaft structure for installing an elevator in a stairwell as described in appendix 1.

[0038] (Appendix 5) A partition reversing mechanism is provided under the fixed staircase structure, which includes a driving motor 1 and a reversing plate installed on the driving motor 1; 4. A shaft structure for installing an elevator in a stairwell as described in appendix 3.

[0039] (Appendix 6) The horizontal connecting beam also includes a first horizontal connecting beam and a second horizontal connecting beam, and a landing door assembly is provided between the first horizontal connecting beam and the second horizontal connecting beam, and the landing door assembly includes a door frame, two landing doors provided in the door frame, and a door closer provided between the door frame and the landing doors. 6. A shaft structure for installing an elevator in a stairwell according to claim 4 or 5.

[0040] (Appendix 7) A first reversible step mechanism is provided at the other end of the reversible stair structure away from the fixed stair structure, the first reversible step mechanism including a drive motor 2, a first reversible step and a plurality of step connectors, the step connectors are provided between the reversible stair structure and the first reversible step, and the output shaft of the drive motor 2 is connected to the step connectors; 7. A shaft structure for installing an elevator in a stairwell as described in appendix 6.

[0041] (Appendix 8) Restriction grooves are provided in the walls on both sides of the reversible tread; 8. A shaft structure for installing an elevator in a stairwell according to claim 7.

[0042] (Appendix 9) One side of the shaft frame is provided with a bracket to which both the car guide rail and the counterweight can be attached. 2. A shaft structure for installing an elevator in a stairwell as described in appendix 1. [Explanation of symbols]

[0043] In the figure, 100 - shaft structure, 101 - shaft frame, 102 - vertical support beam, 103 - first horizontal connecting beam, 104 - second horizontal connecting beam, 105 - third horizontal connecting beam, 106 - landing, 107 - floor platform, 108 - car guide rail, 109 - counterweight bracket, 110 - guide rail bracket, 200 - stair structure, 300 - shaft switching mechanism, 201 - fixed stair structure, 202 - reversible stair structure, 203 - rectangular reversing plate, 204 - drive motor 3, 301 - control motor, 302 - drive connecting component component, 303 - rotating shaft 1, 304 - rotating part, 305 - rotating shaft 2, 306 - motor mounting bracket, 307 - linear motor, 308 - telescopic sleeve, 309 - telescopic rod, 400 - landing door assembly, 401 - door frame, 402 - landing door, 403 - door closer, 500 - partition reversing mechanism, 501 - motor mount, 502 - drive motor 1, 503 - reversing plate, 504 - drive rotating shaft, 600 - first reversible step mechanism, 601 - drive motor 2, 602 - first reversible step, 603 - step connector, 604 - limiting groove.

Claims

1. A shaft structure for installing an elevator in a stairwell, The shaft structure can be switched from a staircase walking space to an elevator operating space. The shaft structure includes a shaft frame, a partially reversible staircase structure, and a shaft switching mechanism; the shaft frame includes a plurality of vertical and horizontal support beams disposed between the bottom and top of the stairwell; A staircase structure is provided between the shaft frames at each floor of the stairwell, which includes a fixed staircase structure and a reversible staircase structure; The shaft switching mechanism includes a plurality of control motors and a driving connection component, the control motors are installed on the fixed stair structure of each floor, the driving connection component is installed between the fixed stair structure and the reversible stair structure, and the output shafts of the control motors are drivingly connected to the driving connection component; A shaft structure for installing an elevator in a stairwell, characterized in that

2. The driving connection component includes a rotating shaft 1 installed on a fixed staircase structure, a plurality of rotating parts, and a rotating shaft 2 installed on a reversible staircase structure, wherein the output shaft of the control motor is fixedly connected to the rotating shaft 1, and the rotating parts are installed between the rotating shaft 1 and the rotating shaft 2; 2. The shaft structure for installing an elevator in a stairwell according to claim 1.

3. The shaft structure is installed on the step staircase, one end of the fixed staircase structure is fixedly connected to the step stair platform, and the other end of the fixed staircase structure is rotatably connected to the reversible staircase structure; 3. A shaft structure for installing an elevator in a stairwell according to claim 1 or 2.

4. The shaft structure is installed on the landing, the fixed stair structure is the main structure of the landing, and the reversible stair structure is a rectangular reversible plate cut out from the landing, and the rectangular reversible plate and the main structure are rotatably connected; 2. The shaft structure for installing an elevator in a stairwell according to claim 1.

5. A partition reversing mechanism is provided under the fixed staircase structure, which includes a driving motor 1 and a reversing plate installed on the driving motor 1; 4. The shaft structure for installing an elevator in a stairwell according to claim 3.

6. the horizontal connecting beam also includes a first horizontal connecting beam and a second horizontal connecting beam, and a landing door assembly is provided between the first horizontal connecting beam and the second horizontal connecting beam, the landing door assembly including a door frame, two landing doors provided in the door frame, and a door closer provided between the door frame and the landing doors; 6. A shaft structure for installing an elevator in a stairwell according to claim 4 or 5.

7. A first reversible step mechanism is provided at the other end of the reversible stair structure away from the fixed stair structure, the first reversible step mechanism including a drive motor 2, a first reversible step and a plurality of step connectors, the step connectors are provided between the reversible stair structure and the first reversible step, and the output shaft of the drive motor 2 is connected to the step connectors; 7. The shaft structure for installing an elevator in a stairwell according to claim 6.

8. Restriction grooves are provided in the walls on both sides of the reversible tread; The shaft structure for installing an elevator in a stairwell according to claim 7.

9. One side of the shaft frame is provided with a bracket to which both the car guide rail and the counterweight can be attached.

2. The shaft structure for installing an elevator in a stairwell according to claim 1.

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