Device for detecting verticality of elevator shaft

Abstract

The invention relates to the technical field of elevator shafts, and provides an elevator shaft verticality detection device comprising a rectangular frame, the outer side of the rectangular frame is fixedly provided with a mounting rack, the top of the mounting rack is provided with a rectangular groove, the inner side of the rectangular groove is provided with a leveling instrument, and the leveling instrument is fixedly installed on the mounting rack. A two-way threaded rod is arranged in the rectangular frame, the two ends of the two-way threaded rod are rotationally connected with the rectangular frame, two L-shaped frames are in threaded connection with the outer side wall of the two-way threaded rod, and fixing assemblies are arranged on the two L-shaped frames. Through arrangement of a rectangular frame, a mounting frame, a bidirectional threaded rod, an L-shaped frame, a fixing assembly, an infrared emitter, a driving assembly, a rotating assembly and a telescopic assembly, the whole device is small in structure, light in overall weight and convenient to carry and carry, the purpose of convenient use is achieved, meanwhile, the labor cost is reduced, and the working efficiency is improved. And the situation that the device is damaged or people are injured is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator shafts, and in particular to a device for detecting the verticality of an elevator shaft. Background Art

[0002] The elevator shaft is the hoistway where the elevator is installed. The size of the shaft is determined according to the elevator selection. Elevator tracks and counterweight tracks are installed on the shaft wall. Elevator doors are installed in the reserved door openings. There is an elevator machine room on the top of the shaft. The main components of the elevator shaft include the pit, the top floor and the shaft wall. The pit is located at the bottom of the shaft and is mainly used to support the weight of the elevator and facilitate maintenance. Buffers, limit switches, safety clamps and other equipment are also installed in the pit. The top floor is the highest floor of the elevator shaft and is equipped with safety devices, traction machines and other equipment. The shaft wall is the main structure of the elevator shaft, ensuring the bearing capacity and stability of the shaft.

[0003] It is known that China's publicly authorized patent CN220351411U discloses a vertical inspection device for a vertical elevator shaft, which relates to the field of vertical detection technology for vertical elevator shafts, including an elevator shaft and a foundation pit arranged at the bottom of the elevator shaft. First slide rails are fixedly arranged on both sides of the inner wall of the elevator shaft. A detection mechanism for detecting the verticality of the inner wall of the first slide rail is slidably sleeved together on the outer walls of the two first slide rails. The detection mechanism includes a first detection mechanism and a second detection mechanism. The vertical inspection device for the vertical elevator shaft can simultaneously detect the inclination of the two first slide rails by setting the first detection mechanism and the second detection mechanism. In the process of detecting the inclination angle of the first slide rail, not only can it be measured whether it is tilted, but also the value of the maximum inclination angle can be specifically measured, so that it can be intuitively understood whether the inclination angle of the first slide rail meets the design requirements, which greatly improves the detection efficiency. Moreover, the device has a simple design structure, low manufacturing cost, and is simple and convenient to use.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned solution had the following problems: the device as a whole is relatively bulky, inconvenient to transport and carry, and requires the cooperation of multiple people to complete the transportation and installation, which increases the labor cost, and there are risks of falling and collision during transportation, which may cause equipment damage or personal injury. Therefore, a device for detecting the verticality of the elevator shaft is needed. Summary of the invention

[0005] The present invention proposes a device for detecting the verticality of an elevator shaft, which solves the problem that the device in the related art is overall bulky, inconvenient to transport and carry, requires the cooperation of multiple people to complete the transportation and installation, increases labor costs, and there is a risk of falling, collision, etc. during transportation, which may cause equipment damage or personal injury.

[0006] The technical solution of the present invention is as follows: A device for detecting the verticality of an elevator shaft, comprising a rectangular frame, a mounting frame is fixedly mounted on the outside of the rectangular frame, a rectangular groove is opened on the top of the mounting frame, a level ruler is arranged on the inside of the rectangular groove, and the level ruler is fixedly mounted on the mounting frame; A bidirectional threaded rod is arranged inside the rectangular frame, and both ends of the bidirectional threaded rod are rotatably connected to the rectangular frame, two L-shaped frames are threadedly connected to the outer wall of the bidirectional threaded rod, and the two L-shaped frames are each provided with a fixing component, and the two fixing components are each penetrated with an infrared emitter; A driving assembly is disposed on the inner side of the mounting frame, and an output end of the driving assembly is connected to the bidirectional threaded rod; A rotating assembly is provided at the bottom of the rectangular frame, mounting grooves are provided at both ends of the rotating assembly, telescopic assemblies are provided on the inner sides of the two mounting grooves, and detection assemblies are provided on the inner sides of the two telescopic assemblies; A locking assembly is disposed on one side of the rectangular frame, and the locking assembly is in contact with the bidirectional threaded rod.

[0007] Through the above technical solution, the entire device structure is made smaller and the overall weight is relatively light, which is convenient to carry and transport, thereby achieving the purpose of easy use. At the same time, it also reduces labor costs and effectively reduces the possibility of device damage or personal injury. At the same time, it also makes the device detection methods diversified, reducing the errors or false alarms that may exist in a single detection method. The combined use can make up for each other's shortcomings, thereby improving the overall measurement accuracy. Even if one of the detection mechanisms fails, the other mechanism can still work normally, ensuring that the equipment will not fail completely and providing continuous and reliable detection functions.

[0008] Preferably, the locking assembly comprises a fixing column fixedly mounted on one end of the bidirectional threaded rod, a mounting frame is fixedly mounted on one side of the rectangular frame, and the mounting frame is located outside the fixing column; One-way screw rods are provided through both ends of the installation frame, and the one-way screw rods are threadedly connected to the installation frame. An arc plate is rotatably installed on one end of the one-way screw rod, and the side of the arc plate away from the installation frame is in contact with the fixing column.

[0009] Through the above technical solution, the bidirectional threaded rod can be locked to prevent the bidirectional threaded rod and the L-shaped frame from loosening after the bidirectional threaded rod drives the L-shaped frame to be adjusted and fixed.

[0010] Preferably, a rubber pad is fixedly mounted on the outer side wall of the fixing column and on one side of the arc plate, and the rubber pad on the arc plate is in contact with the rubber pad on the fixing column.

[0011] Through the above technical solution, the friction between the arc plate and the fixing column can be increased, thereby improving the interference and fixing effect between the arc plate and the fixing column.

[0012] Preferably, the driving assembly includes a first motor fixedly mounted on the inner bottom wall of the mounting frame, an output end of the first motor passes through a side of the mounting frame and is fixedly mounted with a driving bevel gear, an outer side wall of the bidirectional threaded rod is fixedly mounted with a driven bevel gear, and the driving bevel gear is meshingly connected with the driven bevel gear.

[0013] Through the above technical solution, the bidirectional threaded rod can be driven, so that the distance between the two L-shaped frames can be adjusted, and the device can be fixed in elevator shafts of different sizes for use.

[0014] Preferably, the fixing assembly includes a fixing frame clamped on the L-shaped frame, and the infrared transmitter is fixedly installed on the fixing frame, one side of the fixing frame is threadedly connected with a hand screw, and the screw end of the hand screw is in contact with the L-shaped frame.

[0015] Through the above technical solution, the position of the infrared transmitter can be adjusted to ensure that the infrared transmitter can be close to the inner wall of the elevator shaft.

[0016] Preferably, a strip groove is fixedly installed on the inner top of the fixing frame, a plug-in board is provided on the L-shaped frame, and the strip groove and the plug-in board are plugged into each other.

[0017] The above technical solution can prevent the fixing frame from tilting due to the large distance between the fixing frame and the L-shaped frame when the hand screw is manually turned.

[0018] Preferably, the rotating assembly includes a fixed frame fixedly installed at the bottom of the rectangular frame, a second motor is fixedly installed on the inner bottom wall of the fixed frame, an output end of the second motor passes through a side wall of the fixed frame and is fixedly installed with a disc, a fixed shell is fixedly installed at the bottom of the disc, and the mounting groove is opened on the fixed shell.

[0019] Through the above technical solution, the fixed shell can be driven so that the fixed shell and the rectangular frame are in a cross shape, thereby facilitating vertical detection of the inner walls on the other two sides of the elevator shaft.

[0020] Preferably, the telescopic assembly comprises an L-shaped shell inserted into the mounting groove, an electric telescopic rod is fixedly mounted on one side of the inner wall of the L-shaped shell, and the other end of the electric telescopic rod is fixedly connected to the fixed shell.

[0021] Through the above technical solution, the detection component can approach the inner wall of the elevator shaft and perform measurements.

[0022] Preferably, the detection assembly comprises a reel disposed inside the L-shaped shell, and both ends of the reel are rotatably connected to the L-shaped shell, a rope is disposed on the outer side wall of the reel, and one end of the rope is fixedly connected to a plumb bob; A driven spur gear is fixedly mounted on the outer wall of the winding disk, a third motor is fixedly mounted on the inner bottom wall of the L-shaped shell, a driving spur gear is fixedly mounted on the output end of the third motor, and the driving spur gear is meshingly connected with the driven spur gear.

[0023] Through the above technical solution, the detection methods of the device are diversified, reducing the errors or false alarms that may exist in a single detection method. The combined use can make up for each other's shortcomings, thereby improving the overall measurement accuracy. Even if one of the detection mechanisms fails, the other mechanism can still work normally, ensuring that the equipment will not fail completely and providing continuous and reliable detection functions.

[0024] Preferably, a fixed pulley is provided inside the L-shaped shell, and both ends of the fixed pulley are rotatably connected to the L-shaped shell, a U-shaped frame is fixedly installed on the inner top wall of the L-shaped shell, and one end of the rope passes through the U-shaped frame and is fixedly connected between the fixed pulley and the plumb bob.

[0025] Through the above technical solution, the rope in the process of releasing the line can be limited so that the rope and the plumb bob can always be kept in the middle of the L-shaped shell.

[0026] The working principle and beneficial effects of the present invention are: 1. By setting up a rectangular frame, a mounting frame, a bidirectional threaded rod, an L-shaped frame, a fixing assembly, an infrared transmitter, a driving assembly, a rotating assembly and a telescopic assembly, the entire device structure is small and the overall weight is light, which is convenient for carrying and carrying, thereby achieving the purpose of easy use, while also reducing labor costs and effectively reducing the possibility of device damage or personal injury.

[0027] 2. By setting the fixing column, the mounting frame, the one-way screw rod and the arc plate, the adjusted bidirectional threaded rod can be locked, so as to avoid the bidirectional threaded rod and the L-shaped frame from loosening after the bidirectional threaded rod drives the L-shaped frame to be adjusted and fixed.

[0028] 3. Through the detection components set up, the detection methods of the device are diversified, reducing the errors or false alarms that may exist in a single detection method. The combined use can make up for each other's shortcomings, thereby improving the overall measurement accuracy. Even if one of the detection mechanisms fails, the other mechanism can still work normally, ensuring that the equipment will not fail completely and providing continuous and reliable detection functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Figure 1 It is a schematic diagram of the overall three-dimensional structure proposed by the present invention; Figure 2 A schematic diagram of the three-dimensional structure of a bidirectional threaded rod proposed in the present invention; Figure 3 A three-dimensional structural schematic diagram of a driving assembly proposed in the present invention; Figure 4 A three-dimensional structural schematic diagram of a rotating assembly proposed in the present invention; Figure 5 A schematic diagram of the three-dimensional structure of the telescopic assembly proposed in the present invention; Figure 6 A three-dimensional structural schematic diagram of the locking assembly proposed in the present invention; Figure 7 The present invention proposes Figure 2 A in the figure is an enlarged schematic diagram of the three-dimensional structure; Figure 8 The present invention proposes Figure 5 A schematic diagram of the three-dimensional structure is enlarged at B in FIG. Fig. 9 The present invention provides a three-dimensional structural schematic diagram of a driven spur gear.

[0031] In the figure: 1. rectangular frame; 2. mounting frame; 3. level; 4. two-way threaded rod; 5. L-shaped frame; 6. Fixing assembly; 61. Fixing bracket; 62. Thumb screw; 7. Infrared transmitter; 8. driving assembly; 81. first motor; 82. driven bevel gear; 9. Rotating assembly; 91. Fixed frame; 92. Second motor; 93. Fixed shell; 10. telescopic assembly; 101. L-shaped shell; 102. electric telescopic rod; 11. Detection assembly; 1101. Reel; 1102. Rope; 1103. Plumb bob; 1104. Driven spur gear; 1105. Third motor; 1106. Driving spur gear; 12. Locking assembly; 1201. Fixing column; 1202. Mounting frame; 1203. One-way screw rod; 1204. Arc plate; 13. Strip groove; 14. Plug-in board; 15. Fixed pulley; 16. U-shaped frame. DETAILED DESCRIPTION

[0032] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1 See also Figures 1 to 9 , a device for detecting the verticality of an elevator shaft, comprising a rectangular frame 1, a mounting frame 2 is fixedly mounted on the outer side of the rectangular frame 1, a rectangular groove is opened on the top of the mounting frame 2, a level 3 is arranged on the inner side of the rectangular groove, and the level 3 is fixedly mounted on the mounting frame 2; A bidirectional threaded rod 4 is arranged inside the rectangular frame 1, and both ends of the bidirectional threaded rod 4 are rotatably connected to the rectangular frame 1. Two L-shaped frames 5 are threadedly connected to the outer wall of the bidirectional threaded rod 4. The two L-shaped frames 5 are each provided with a fixing component 6, and the two fixing components 6 are each penetrated with an infrared emitter 7; A driving assembly 8 is disposed on the inner side of the mounting frame 2, and the output end of the driving assembly 8 is connected to the bidirectional threaded rod 4; A rotating assembly 9 is disposed at the bottom of the rectangular frame 1 . Both ends of the rotating assembly 9 are provided with mounting grooves. Telescopic assemblies 10 are disposed inside the two mounting grooves. Detection assemblies 11 are disposed inside the two telescopic assemblies 10 .

[0034] The present invention provides a device for detecting the verticality of an elevator shaft. The driving component 8 drives the bidirectional threaded rod 4 on the inner side of the rectangular frame 1 to rotate, so that the bidirectional threaded rod 4, in cooperation with the rectangular frame 1, can stably drive the two L-shaped frames 5 threaded thereon to move away from each other, and make one end of the L-shaped frame 5 contact the inner wall of the elevator shaft, so that the rectangular frame 1 can be stably fixed in the elevator shaft, and then the infrared transmitter 7 on the fixing component 6 is started, so that the infrared transmitter 7 emits an infrared beam downward, and then another worker uses a tape measure to measure whether the distance from the infrared beam to each edge is consistent in the corner of each floor, and then the telescopic component 10 drives the detection component 11 to move, so that the detection component 11 is close to the inner wall of the elevator shaft and detects, so that the detection method of the device is diversified and a single detection method is reduced. The errors or false alarms that may exist in the two modes can be used in combination to make up for each other's shortcomings, thereby improving the overall measurement accuracy. Even if one of the detection mechanisms fails, the other mechanism can still work normally, ensuring that the equipment will not fail completely, and providing continuous and reliable detection functions. Or when the infrared transmitter 7 is measuring, the rotating component 9 drives the telescopic component 10 to rotate, so that the telescopic component 10 and the rectangular frame 1 are in a cross shape, and then the telescopic component 10 drives the detection component 11 to move, so that the detection component 11 is close to the inner walls on the other two sides of the elevator shaft, and then the detection component 11 is used to perform vertical detection on it. The entire device has a small structure and a light overall weight, which is convenient to carry and carry, achieving the purpose of easy use, while also reducing labor costs and effectively reducing the possibility of device damage or personal injury.

[0035] Furthermore, the driving assembly 8 includes a first motor 81 fixedly mounted on the inner bottom wall of the mounting frame 2, the output end of the first motor 81 passes through one side of the mounting frame 2 and is fixedly mounted with a driving bevel gear, and a driven bevel gear 82 is fixedly mounted on the outer wall of the bidirectional threaded rod 4, and the driving bevel gear and the driven bevel gear 82 are meshingly connected.

[0036] Specifically, the first motor 81 drives the active bevel gear installed on its output end to rotate, and then the rotating active bevel gear drives the bidirectional threaded rod 4 through the driven bevel gear 82 meshingly connected thereto, so that the distance between the two L-shaped frames 5 can be adjusted, thereby enabling the device to be fixed in elevator shafts of different sizes for use.

[0037] Furthermore, the fixing assembly 6 includes a fixing frame 61 clamped on the L-shaped frame 5, and the infrared transmitter 7 is fixedly installed on the fixing frame 61, and a hand screw 62 is threadedly connected to one side of the fixing frame 61, and the screw end of the hand screw 62 is in contact with the L-shaped frame 5.

[0038] Specifically, by manually pushing the fixing frame 61, the position of the infrared transmitter 7 can be adjusted to ensure that the infrared transmitter 7 can be close to the inner wall of the elevator shaft. After the adjustment is completed, the hand screw 62 threaded on the fixing frame 61 is rotated to make the screw end contact with the L-shaped frame 5, so that the adjusted fixing frame 61 and the infrared transmitter 7 can be locked.

[0039] Furthermore, a strip groove 13 is fixedly installed on the inner top of the fixing frame 61 , and a plug-in board 14 is provided on the L-shaped frame 5 , and the strip groove 13 and the plug-in board 14 are plugged in each other.

[0040] Specifically, the strip groove 13 and the plug board 14 can prevent the fixing frame 61 from tilting due to the large distance between the fixing frame 61 and the L-shaped frame 5 when the hand screw 62 is manually turned.

[0041] Furthermore, the rotating assembly 9 includes a fixed frame 91 fixedly installed at the bottom of the rectangular frame 1, a second motor 92 is fixedly installed on the inner bottom wall of the fixed frame 91, an output end of the second motor 92 passes through a side wall of the fixed frame 91 and is fixedly installed with a disc, a fixed shell 93 is fixedly installed at the bottom of the disc, and a mounting groove is opened on the fixed shell 93.

[0042] Specifically, the second motor 92 drives the disc to rotate, so that the position of the fixed shell 93 can be adjusted, so that the fixed shell 93 and the rectangular frame 1 are in a cross shape, thereby facilitating vertical detection of the inner walls on the other two sides of the elevator shaft.

[0043] Furthermore, the telescopic assembly 10 includes an L-shaped shell 101 inserted into the mounting groove, an electric telescopic rod 102 is fixedly mounted on one side of the inner wall of the L-shaped shell 101, and the other end of the electric telescopic rod 102 is fixedly connected to the fixed shell 93.

[0044] Specifically, the L-shaped shell 101 is driven to extend out of the installation groove by the electric telescopic rod 102, and one end of the L-shaped shell 101 is brought into contact with the inner wall of the elevator shaft, thereby improving the fixing effect and stability of the device and enabling the detection component 11 to approach the inner wall of the elevator shaft and perform measurements.

[0045] Furthermore, the detection assembly 11 includes a reel 1101 disposed inside the L-shaped shell 101, and both ends of the reel 1101 are rotatably connected to the L-shaped shell 101, a rope 1102 is disposed on the outer wall of the reel 1101, and one end of the rope 1102 is fixedly connected to a plumb bob 1103; A driven spur gear 1104 is fixedly mounted on the outer wall of the winding disk 1101 , a third motor 1105 is fixedly mounted on the inner bottom wall of the L-shaped shell 101 , a driving spur gear 1106 is fixedly mounted on the output end of the third motor 1105 , and the driving spur gear 1106 is meshingly connected with the driven spur gear 1104 .

[0046] Specifically, the third motor 1105 drives the active spur gear 1106 to rotate, and then the rotating active spur gear 1106 rotates through the driven spur gear 1104 meshingly connected thereto, so that the winding disk 1101 can drive the rope 1102 to perform line-release detection, thereby diversifying the detection methods of the device and reducing the errors or false alarms that may exist in a single detection method. The combined use can make up for each other's shortcomings, thereby improving the overall measurement accuracy.

[0047] It should also be noted that due to the arrangement of the winding reel 1101, the rope 1102, the plumb bob 1103, the driven spur gear 1104, the third motor 1105 and the driving spur gear 1106, even if the infrared transmitter 7 on the device fails, the vertical measuring device can still operate normally, ensuring that the equipment will not fail completely and providing a continuous and reliable detection function.

[0048] Furthermore, a fixed pulley 15 is provided inside the L-shaped shell 101, and both ends of the fixed pulley 15 are rotatably connected to the L-shaped shell 101. A U-shaped frame 16 is fixedly installed on the inner top wall of the L-shaped shell 101, and one end of the rope 1102 passes through the U-shaped frame 16 and the fixed pulley 15 and is fixedly connected to the plumb bob 1103.

[0049] Specifically, the fixed pulley 15 and the U-shaped frame 16 can limit the position of the rope 1102 in the process of releasing the line, so that the rope 1102 and the plumb bob 1103 can always be kept in the middle of the L-shaped shell 101.

[0050] Embodiment 2 Based on the first embodiment, in this embodiment: a locking assembly 12 is provided on one side of the rectangular frame 1, and the locking assembly 12 is in contact with the bidirectional threaded rod 4, the locking assembly 12 includes a fixing column 1201 fixedly installed on one end of the bidirectional threaded rod 4, and a mounting frame 1202 is fixedly installed on one side of the rectangular frame 1, and the mounting frame 1202 is located outside the fixing column 1201; One-way screw rods 1203 are provided at both ends of the installation frame 1202 , and the one-way screw rods 1203 and the installation frame 1202 are threadedly connected. An arc plate 1204 is rotatably installed on one end of the one-way screw rods 1203 , and the side of the arc plate 1204 away from the installation frame 1202 is in contact with the fixing column 1201 .

[0051] The technical solution provided by this embodiment is: by manually rotating the one-way screw rod 1203 threadedly connected on the installation frame 1202, the one-way screw rod 1203 can drive the arc plate 1204 to move and resist the fixed column 1201, so that the two-way threaded rod 4 can be locked to prevent the two-way threaded rod 4 and the L-shaped frame 5 from loosening after the two-way threaded rod 4 drives the L-shaped frame 5 to be adjusted and fixed.

[0052] Furthermore, rubber pads are fixedly mounted on the outer side wall of the fixing column 1201 and on one side of the arc plate 1204 , and the rubber pad on the arc plate 1204 is in contact with the rubber pad on the fixing column 1201 .

[0053] Specifically, the rubber pad can increase the friction between the arc plate 1204 and the fixing column 1201 , thereby improving the interference and fixing effect between the arc plate 1204 and the fixing column 1201 .

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting the verticality of an elevator shaft, comprising a rectangular frame (1), characterized in that: A mounting frame (2) is fixedly mounted on the outside of the rectangular frame (1), a rectangular groove is provided on the top of the mounting frame (2), a level (3) is provided on the inside of the rectangular groove, and the level (3) is fixedly mounted on the mounting frame (2); A bidirectional threaded rod (4) is provided inside the rectangular frame (1), and both ends of the bidirectional threaded rod (4) are rotatably connected to the rectangular frame (1); two L-shaped frames (5) are threadedly connected to the outer wall of the bidirectional threaded rod (4); a fixing component (6) is provided on each of the two L-shaped frames (5); and an infrared emitter (7) is provided through each of the two fixing components (6); A driving assembly (8) is provided on the inner side of the mounting frame (2), and an output end of the driving assembly (8) is connected to the bidirectional threaded rod (4); A rotating assembly (9) is provided at the bottom of the rectangular frame (1), mounting grooves are provided at both ends of the rotating assembly (9), telescopic assemblies (10) are provided on the inner sides of the two mounting grooves, and detection assemblies (11) are provided on the inner sides of the two telescopic assemblies (10); A locking assembly (12) is provided on one side of the rectangular frame (1), and the locking assembly (12) is in contact with the bidirectional threaded rod (4).

2. The device for detecting the verticality of an elevator shaft according to claim 1, characterized in that: The locking assembly (12) comprises a fixing column (1201) fixedly mounted on one end of the bidirectional threaded rod (4); a mounting frame (1202) is fixedly mounted on one side of the rectangular frame (1), and the mounting frame (1202) is located outside the fixing column (1201); One-way screw rods (1203) are provided at both ends of the installation frame (1202), and the one-way screw rods (1203) are threadedly connected to the installation frame (1202). An arc plate (1204) is rotatably installed on one end of the one-way screw rod (1203), and the side of the arc plate (1204) away from the installation frame (1202) is in contact with the fixing column (1201).

3. The device for detecting the verticality of an elevator shaft according to claim 2, characterized in that: Rubber pads are fixedly mounted on the outer side wall of the fixing column (1201) and one side of the arc-shaped plate (1204), and the rubber pad on the arc-shaped plate (1204) is in contact with the rubber pad on the fixing column (1201).

4. The device for detecting the verticality of an elevator shaft according to claim 1, wherein: The driving assembly (8) comprises a first motor (81) fixedly mounted on the inner bottom wall of the mounting frame (2); an output end of the first motor (81) passes through one side of the mounting frame (2) and is fixedly mounted with a driving bevel gear; a driven bevel gear (82) is fixedly mounted on the outer side wall of the bidirectional threaded rod (4), and the driving bevel gear and the driven bevel gear (82) are meshingly connected.

5. The device for detecting the verticality of an elevator shaft according to claim 1, characterized in that: The fixing assembly (6) includes a fixing frame (61) clamped on the L-shaped frame (5), and the infrared emitter (7) is fixedly installed on the fixing frame (61) through the fixing frame (61), and a hand screw (62) is threadedly connected to one side of the fixing frame (61), and the screw end of the hand screw (62) is in contact with the L-shaped frame (5).

6. The device for detecting the verticality of an elevator shaft according to claim 5, characterized in that: A strip groove (13) is fixedly mounted on the inner top of the fixing frame (61), a plug-in board (14) is provided on the L-shaped frame (5), and the strip groove (13) and the plug-in board (14) are plugged into each other.

7. The device for detecting the verticality of an elevator shaft according to claim 1, characterized in that: The rotating assembly (9) comprises a fixed frame (91) fixedly mounted on the bottom of the rectangular frame (1); a second motor (92) is fixedly mounted on the inner bottom wall of the fixed frame (91); an output end of the second motor (92) passes through a side wall of the fixed frame (91) and is fixedly mounted with a disc; a fixed shell (93) is fixedly mounted on the bottom of the disc, and the mounting groove is provided on the fixed shell (93).

8. The device for detecting the verticality of an elevator shaft according to claim 7, characterized in that: The telescopic assembly (10) comprises an L-shaped shell (101) inserted into the mounting groove, an electric telescopic rod (102) being fixedly mounted on one side of the inner wall of the L-shaped shell (101), and the other end of the electric telescopic rod (102) is fixedly connected to the fixed shell (93).

9. The device for detecting the verticality of an elevator shaft according to claim 8, characterized in that: The detection assembly (11) comprises a reel (1101) arranged inside the L-shaped shell (101), and both ends of the reel (1101) are rotatably connected to the L-shaped shell (101), a rope (1102) is provided on the outer wall of the reel (1101), and one end of the rope (1102) is fixedly connected to a plumb bob (1103); A driven spur gear (1104) is fixedly mounted on the outer side wall of the winding disk (1101), a third motor (1105) is fixedly mounted on the inner bottom wall of the L-shaped shell (101), a driving spur gear (1106) is fixedly mounted on the output end of the third motor (1105), and the driving spur gear (1106) is meshingly connected to the driven spur gear (1104).

10. The device for detecting the verticality of an elevator shaft according to claim 9, characterized in that: A fixed pulley (15) is provided inside the L-shaped shell (101), and both ends of the fixed pulley (15) are rotatably connected to the L-shaped shell (101). A U-shaped frame (16) is fixedly mounted on the inner top wall of the L-shaped shell (101), and one end of the rope (1102) passes through the U-shaped frame (16) and is fixedly connected between the fixed pulley (15) and the plumb bob (1103).

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