An elevator installation gap measuring device

Abstract

This invention relates to the field of elevator spacing measurement technology and discloses an elevator installation gap measuring device, including an installation unit, a detection unit, and a displacement unit installed on the top of the elevator car. The drive motor of this invention can rotate an arched bracket and a connecting plate connected to a laser rangefinder, ultimately allowing the laser rangefinder to move to each of the four sides of the elevator car to complete the measurement operation. This method allows the laser rangefinder to be installed on only one side of the elevator car, improving installation efficiency. Furthermore, when the connecting plate rotates on adjacent sides of the elevator car, the positioning slider slides outwards through the guidance of the outward protrusion and reversing groove, and the push rod causes the arched bracket to flip. At this point, the laser rangefinder on the arched bracket becomes vertical, thereby measuring the distance from the top of the car to the top of the hoistway. This reduces the number of laser rangefinders used, saves measurement costs, and reduces the occurrence of signal interference.

Description

Technical Field

[0001] This invention belongs to the field of elevator spacing measurement technology, specifically, it relates to an elevator installation gap measuring device. Background Technology

[0002] In the context of continuous urbanization, high-rise buildings are springing up like mushrooms after rain. As a key piece of equipment for vertical transportation, the installation quality of elevators directly affects the safety and daily experience of users. During elevator installation, accurately controlling the distance from the shaft wall to the elevator car and the distance from the top of the car to the top of the shaft are crucial for ensuring stable elevator operation, reducing operating noise, and preventing car collisions.

[0003] Currently, measuring the distance between the hoistway wall and the elevator car requires the installation of laser rangefinders in four directions around the car. However, in the confined space of the hoistway, installing sensors on all four sides of the elevator car is difficult and inefficient. Furthermore, measuring the distance from the top of the car to the top of the hoistway often requires additional sensors. Therefore, the layout of numerous sensors is extremely complex, consuming significant manpower and time during installation and commissioning, and is prone to signal interference due to messy wiring. In view of this, this invention is proposed. Summary of the Invention

[0004] To address the current problem of measuring the distance between the elevator shaft wall and the car, which requires the installation of laser distance sensors on all four sides of the car, the confined space of the shaft makes installation difficult and inefficient. Furthermore, measuring the distance from the top of the car to the top of the shaft often necessitates additional sensors, resulting in a highly complex sensor layout. This not only consumes significant manpower and time during installation and commissioning but also presents the risk of signal interference due to messy wiring. The basic concept of this invention is as follows:

[0005] An elevator installation gap measuring device includes an installation unit, a measuring unit, and a displacement unit installed on the top of the elevator car.

[0006] The installation unit includes a cover, which is installed at the center of the top of the elevator car, and an installation cavity is provided inside the cover;

[0007] The measuring unit includes a turntable, which is rotatably mounted at the center of the mounting cavity. A drive motor is mounted at the rotation center of the turntable. A pair of connecting plates are mounted on the side wall of the turntable, and a positioning slider is slidably mounted on the pair of connecting plates. A positioning plate is installed inside the mounting cavity. The positioning plate has four protrusions, which correspond to the four side walls of the elevator car. Each of the four protrusions has an external groove, and a reversing groove is connected between adjacent external grooves. The reversing groove is located on the positioning plate. The positioning slider is slidably connected to the corresponding external groove. An arched bracket is rotatably mounted on the connecting plate. A synchronization plate is rotatably mounted on the side wall of the arched bracket. Several pairs of laser rangefinders are mounted on the synchronization plate. Each laser rangefinder is equipped with a laser ranging sensor. A rocker arm is mounted at the rotation center of the arched bracket, and the rocker arm is slidably connected to a push rod mounted on the surface of the positioning slider.

[0008] The shifting unit includes a drive gear and a guide rack. The drive gear has a gear shaft mounted on its rotation center. The gear shaft is connected to the rotation center of the synchronization plate. The guide rack is mounted at the bottom of the mounting cavity and corresponds to the reversing groove. The guide rack is adapted to the drive gear, and the central angle of the guide rack is smaller than the central angle corresponding to the reversing groove.

[0009] In a preferred embodiment of the present invention, a pair of upright plates are installed at the bottom of the cover, and an mounting plate is welded to the bottom of the pair of upright plates. A reinforcing rib is installed at the connection between the mounting plate and the upright plate. The reinforcing rib is triangular. Mounting holes are provided at the four corners of the mounting plate, and locking bolts are installed inside the mounting holes. The locking bolts are used to connect the mounting plate and the elevator car.

[0010] In a preferred embodiment of the present invention, a cover is installed on the cover body, a handle is installed on the cover body, and an anti-slip groove is provided on the surface of the handle. A slide rail is installed at the bottom of the cover body, and the slide rail is slidably disposed in an inner groove opened in the side wall of the cover body. A notch is opened on the surface of the cover body, and the arched bracket moves through the notch. The cover body is connected to the turntable.

[0011] In a preferred embodiment of the present invention, the drive motor housing is fixedly installed at the bottom of the cover, a synchronous shaft is installed at the output end of the drive motor, the synchronous shaft movably passes through the cover, the end of the synchronous shaft is connected to the turntable, the synchronous shaft movably passes through a fixing block installed at the end of the guide rack, and the fixing block is located at the center of the cover.

[0012] In a preferred embodiment of the present invention, a positioning groove is provided on the connecting plate, the positioning groove is slidably connected to the positioning slider, a limiting rod is installed on the positioning groove, the limiting rod is distributed laterally, the limiting rod is slidably connected to the positioning slider, a limiting spring is sleeved on the side wall of the limiting rod, one end of the limiting spring is engaged with the side wall of the positioning groove, and the other end is engaged with the side wall of the positioning slider.

[0013] In a preferred embodiment of the present invention, a protrusion is fixedly installed at the bottom of the positioning slider. The surface of the protrusion is chamfered. The protrusion is slidably connected to the outer convex groove. The outer convex groove is arched. The reversing groove is arc-shaped. Several pairs of outer convex grooves and reversing grooves alternately form an annular groove.

[0014] In a preferred embodiment of the present invention, a connecting shaft is rotatably installed inside the arched bracket. One end of the connecting shaft is connected to the rotation center of the synchronization plate, and the other end of the connecting shaft is connected to the gear shaft. The synchronization plate is in a horizontal state, and the spacing between several pairs of laser rangefinders is the same.

[0015] In a preferred embodiment of the present invention, a pair of positioning seats are mounted on the surface of the connecting plate. The pair of positioning seats are located on both sides of the positioning slider. A positioning shaft is rotatably mounted between the pair of positioning seats. The two ends of the positioning shaft are respectively connected to the arched bracket. The positioning shaft is connected to the rocker arm.

[0016] In a preferred embodiment of the present invention, the rocker arm is in an inclined state, a strip groove is provided on the rocker arm, a slide rod is slidably arranged on the strip groove, and push rods are connected to both ends of the slide rod, the push rods being in an inclined state.

[0017] In a preferred embodiment of the present invention, a coil spring is provided at the connection between the gear shaft and the arched bracket, and a through hole is provided on the surface of the connecting plate, the position of which corresponds to the position of the drive gear.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] This invention incorporates a measurement unit where a drive motor rotates an arched bracket and connecting plate connected to a laser rangefinder. This allows the laser rangefinder to move to all four sides of the elevator car, completing the measurement operation. This method simplifies operation by requiring the laser rangefinder to be installed on only one side of the elevator car, improving efficiency. As the connecting plate rotates on adjacent sides of the elevator car, the outward-protruding groove and reversing groove guide the positioning slider outward, pushing a push rod. The push rod then rotates the arched bracket, turning the laser rangefinder vertical and allowing for measurement of the distance from the top of the car to the top of the hoistway. This method reduces the number of laser rangefinders required, saving measurement costs and minimizing signal interference. Furthermore, when the laser rangefinder is vertical, the drive gear at its base rotates a guide rack, ultimately rotating the synchronization plate and the laser rangefinder, increasing the measurement range and improving accuracy. The specific embodiments of this invention are described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 A schematic diagram of the installation structure of an elevator installation clearance measuring device;

[0022] Figure 2 A three-dimensional structural schematic diagram of an elevator installation clearance measuring device;

[0023] Figure 3 An elevator installation gap measuring device Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 A cross-sectional view of the cover of an elevator installation clearance measuring device;

[0025] Figure 5 A schematic diagram of the structure of an elevator installation gap measuring device after the cover has been removed;

[0026] Figure 6 An elevator installation gap measuring device Figure 5 Enlarged view at point B in the middle;

[0027] Figure 7 A schematic diagram of the internal structure of the mounting cavity of an elevator installation clearance measuring device;

[0028] Figure 8 A three-dimensional view of the arched support of an elevator installation gap measuring device.

[0029] In the picture:

[0030] 100. Mounting unit; 101. Cover; 1011. Mounting cavity; 1012. Vertical plate; 1013. Reinforcing rib; 1014. Mounting plate; 1015. Mounting hole; 102. Cover; 1021. Handle; 1022. Slide rail; 1023. Inner groove; 1024. Notch;

[0031] 200. Measuring unit; 201. Connecting plate; 2011. Turntable; 2012. Synchronous shaft; 2013. Drive motor; 202. Positioning groove; 2021. Positioning slider; 2022. Limiting rod; 2023. Limiting spring; 2024. Protrusion; 203. Positioning plate; 2031. Protrusion; 2032. Outer groove; 2033. Reversing groove; 204. Arched bracket; 2041. Positioning seat; 2042. Positioning shaft; 2043. Rocker arm; 2044. Strip groove; 2045. Slide rod; 2046. Push rod; 205. Synchronous plate; 2051. Laser rangefinder; 2052. Laser rangefinder sensor; 2053. Connecting shaft;

[0032] 300, Shifting unit; 301, Drive gear; 3011, Gear shaft; 3012, Coil spring; 3013, Through hole; 302, Guide rack; 3021, Fixing block; 400, Elevator car. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0034] Example 1:

[0035] like Figures 1 to 8 As shown, an elevator installation gap measuring device includes an installation unit 100, a measuring unit 200, and a displacement unit 300 installed on the top of an elevator car 400.

[0036] The installation unit 100 includes a cover 101, which is installed at the center of the top of the elevator car 400, and an installation cavity 1011 is provided inside the cover 101.

[0037] The measuring unit 200 includes a turntable 2011, which is rotatably mounted at the center of the mounting cavity 1011. A drive motor 2013 is mounted at the center of the turntable 2011. A pair of connecting plates 201 are mounted on the side wall of the turntable 2011, and positioning sliders 2021 are slidably mounted on the pair of connecting plates 201. A positioning plate 203 is installed inside the mounting cavity 1011. The positioning plate 203 has four protrusions 2031, which correspond to the four side walls of the elevator car 400. Each of the four protrusions 2031 has an external groove 2. 032, a reversing groove 2033 connects adjacent external protrusions 2032, and the reversing groove 2033 is formed on the positioning plate 203. The positioning slider 2021 is slidably connected to the corresponding external protrusion 2032. An arched bracket 204 is rotatably mounted on the connecting plate 201. A synchronization plate 205 is rotatably mounted on the side wall of the arched bracket 204. Several pairs of laser rangefinders 2051 are mounted on the synchronization plate 205. Each laser rangefinder 2051 is equipped with a laser ranging sensor 2052. A rocker arm 2043 is mounted at the rotation center of the arched bracket 204. 2043 is slidably connected to the push rod 2046 mounted on the surface of the positioning slider 2021; the drive motor 2013 in the measuring unit 200 can drive the arched bracket 204 and the connecting plate 201 connected to the laser rangefinder 2051 to rotate, ultimately allowing the laser rangefinder 2051 to move to the four sides of the elevator car 400 respectively, thereby completing the measurement operation. This method allows the laser rangefinder 2051 to be installed only on one side of the elevator car 400, making operation more convenient and improving installation efficiency. Furthermore, the connecting plate 201 is located on the elevator... When the car 400 rotates on adjacent surfaces, the positioning slider 2021 slides outward as a whole through the guide of the outer protrusion 2032 and the reversing groove 2033, pushing the push rod 2046 to move. The push rod 2046 drives the arched bracket 204 to flip through the rocker arm 2043. At this time, the laser rangefinder 2051 on the arched bracket 204 becomes vertical, thereby measuring the distance from the top of the car to the top of the hoistway. This method can reduce the number of laser rangefinders used, save measurement costs, and reduce the occurrence of signal interference.

[0038] The shifting unit 300 includes a drive gear 301 and a guide rack 302. A gear shaft 3011 is mounted at the rotation center of the drive gear 301, and the gear shaft 3011 is connected to the rotation center of the synchronization plate 205. The guide rack 302 is installed at the bottom of the mounting cavity 1011 and corresponds to the reversing groove 2033. The guide rack 302 is adapted to the drive gear 301, and its central angle is smaller than the central angle corresponding to the reversing groove 2033. When the laser rangefinder 2051 is in a vertical position, as the connecting plate 201 continues to move, the drive gear 301 at the bottom of the laser rangefinder 2051 and the synchronization plate 205 can drive the guide rack 302 to roll, ultimately causing the synchronization plate 205 and the laser rangefinder 2051 to rotate, thereby increasing the measurement range and further improving the measurement accuracy.

[0039] like Figures 1 to 8 As shown, in a specific embodiment, a pair of upright plates 1012 are installed at the bottom of the cover 101. A mounting plate 1014 is welded to the bottom of the pair of upright plates 1012. A reinforcing rib 1013 is installed at the connection between the mounting plate 1014 and the upright plate 1012. The reinforcing rib 1013 is triangular. Mounting holes 1015 are opened at the four corners of the mounting plate 1014. Locking bolts are installed inside the mounting holes 1015. The locking bolts are used to connect the mounting plate 1014 and the elevator car 400. The above structure ensures that the cover 101 is stably installed on the surface of the elevator car 400.

[0040] like Figures 1 to 8 As shown, further, a cover 102 is installed on the cover 101, and a handle 1021 is installed on the cover 102. The surface of the handle 1021 is provided with anti-slip grooves. A slide rail 1022 is installed at the bottom of the cover 102. The slide rail 1022 is slidably disposed in the inner groove 1023 opened in the side wall of the cover 101. A notch 1024 is opened on the surface of the cover 102. The arched bracket 204 moves through the notch. The cover 102 is connected to the turntable 2011. When the turntable 2011 rotates, the turntable 2011 can drive the cover 102 to rotate. The slide rail 1022 at the bottom of the cover 102 slides in the inner groove 1023, which serves as a guide.

[0041] Example 2:

[0042] The difference between Embodiment 1 and this embodiment is that: Figures 1 to 8As shown, the housing of the drive motor 2013 is fixedly installed at the bottom of the cover 101. A synchronous shaft 2012 is installed at the output end of the drive motor 2013. The synchronous shaft 2012 movably passes through the cover 101. The end of the synchronous shaft 2012 is connected to the turntable 2011. The synchronous shaft 2012 movably passes through the fixing block 3021 installed at the end of the guide rack 302. The fixing block 3021 is located at the center of the cover 101. The drive motor 2013 drives the synchronous shaft 2012 connected to the output shaft to rotate. The turntable 2011 is installed at the end of the synchronous shaft 2012, so the turntable 2011 can rotate at this time.

[0043] like Figures 1 to 8 As shown in the specific embodiment, the connecting plate 201 has a positioning groove 202, which is slidably connected to the positioning slider 2021. A limit rod 2022 is installed on the positioning groove 202, and the limit rod 2022 is laterally distributed. The limit rod 2022 is slidably connected to the positioning slider 2021. A limit spring 2023 is sleeved on the side wall of the limit rod 2022. One end of the limit spring 2023 is engaged with the side wall of the positioning groove 202, and the other end is engaged with the side wall of the positioning slider 2021. When the positioning slider 2021 slides in the positioning groove 202 and also slides on the surface of the limit rod 2022, the limit spring 2023 on the limit rod 2022 is compressed. The compressed limit spring 2023 facilitates the subsequent reset operation.

[0044] like Figures 1 to 8 As shown, further, a protrusion 2024 is fixedly installed at the bottom of the positioning slider 2021. The surface of the protrusion 2024 is chamfered. The protrusion 2024 is slidably connected to the outer protrusion groove 2032. The outer protrusion groove 2032 is arched, and the reversing groove 2033 is arc-shaped. Several outer protrusion grooves 2032 and reversing grooves 2033 alternately form an annular groove.

[0045] Example 3:

[0046] The difference between Embodiment 2 and this embodiment is that: Figures 1 to 8As shown, a connecting shaft 2053 is rotatably mounted inside the arched bracket 204. One end of the connecting shaft 2053 is connected to the rotation center of the synchronization plate 205, and the other end is connected to the gear shaft 3011. The synchronization plate 205 is horizontal, and the spacing between several pairs of laser rangefinders 2051 is the same. A pair of positioning seats 2041 are mounted on the surface of the connecting plate 201. The pair of positioning seats 2041 are located on both sides of the positioning slider 2021. A positioning shaft 2042 is rotatably mounted between the pair of positioning seats 2041. Both ends of the positioning shaft 2042 are connected to the arched bracket 204, and the positioning shaft 2042 is connected to the rocker arm 2043. The rocker arm 2043 is in an inclined state, and a strip groove 2044 is opened on the rocker arm 2043. A slide rod 2045 is slidably mounted on the strip groove 2044. Push rods 2046 are connected to both ends of the slide rod 2045, and the push rods 2046 are in an inclined state. When the positioning slider 2021 slides outward, the push rod 2046 on the positioning slider 2021 slides synchronously. The push rod 2046 will drive the slide rod 2045 to slide, and the slide rod 2045 slides on the strip groove 2044 of the rocker arm 2043, thereby driving the rocker arm 2043 to rotate. The rocker arm 2043 drives the positioning shaft 2042 to rotate, and finally the positioning shaft 2042 can drive the arch support 204 to rotate 90 degrees. At this time, the synchronous plate 205 on the arch support 204 can drive the opening of the laser rangefinder 2051 to face vertically upward, and then the laser range sensor 2052 in the laser rangefinder 2051 can complete the measurement of the distance between the elevator car 400 and the top of the shaft.

[0047] like Figures 1 to 8 As shown in the specific embodiment, a coil spring 3012 is provided at the connection between the gear shaft 3011 and the arched bracket 204. A through hole 3013 is opened on the surface of the connecting plate 201. The position of the through hole 3013 corresponds to the position of the drive gear 301. After the gear shaft 3011 and the drive gear 301 rotate, the coil spring 3012 is twisted. The coil spring 3012 facilitates later reset and also helps to maintain the initial position.

[0048] The implementation principle of the elevator installation gap measuring device of the present invention is as follows:

[0049] After the elevator is installed in the shaft, the operator needs to install the installation unit 100 as a whole above the elevator car 400, ensuring that the installation unit 100 is centered on the top of the elevator car 400.

[0050] The specific installation steps are as follows: First, place the mounting plate 1014 on the upper surface of the elevator car 400, and then connect the mounting plate 1014 and the elevator car 400 by passing the locking bolts through the mounting holes 1015. At this time, the mounting unit 100 can be fixed on the elevator car 400. Then, the operator can use the measuring unit 200 and the displacement unit 300 to measure the lateral distance between the elevator car 400 and the shaft wall, as well as the distance between the elevator car 400 and the top of the shaft.

[0051] First, the operator needs to start the drive motor 2013, which drives the synchronous shaft 2012 connected to the output shaft to rotate. A turntable 2011 is mounted at the end of the synchronous shaft 2012, allowing the turntable 2011 to rotate. When the connecting plate 201 on the surface of the turntable 2011 starts rotating synchronously inside the cover 101, and the turntable 2011 and the connecting plate 201 rotate 90 degrees in one cycle, such as... Figure 5 As shown, this is the initial state. In the initial state, the arched bracket 204 and the synchronization plate 205 on the connecting plate 201 are parallel to the side wall of the elevator car 400. Therefore, the laser rangefinder 2051 on the synchronization plate 205 can measure the distance from the elevator car 400 to the shaft wall (the side wall distance is only measured when the synchronization plate 205 and the side wall of the elevator car 400 are parallel to each other).

[0052] When the connecting plate 201 starts to rotate from its initial position, it begins to slide along the outer groove 2032. At this time, the protrusion 2024 at the bottom of the connecting plate 201 can slide from the outer groove 2032 into the reversing groove 2033. During this process, the protrusion 2024 slides outward, which can drive the positioning slider 2021 to slide in the positioning groove 202. The positioning slider 2021 also slides on the surface of the limiting rod 2022. At this time, the limiting spring 2023 on the limiting rod 2022 is compressed. The compressed limiting spring 2023 facilitates the subsequent reset operation.

[0053] When the positioning slider 2021 slides outward, the push rod 2046 on the positioning slider 2021 slides synchronously. The push rod 2046 will drive the slide rod 2045 to slide, and the slide rod 2045 slides on the strip groove 2044 of the rocker arm 2043, thereby driving the rocker arm 2043 to rotate. The rocker arm 2043 drives the positioning shaft 2042 to rotate, and finally the positioning shaft 2042 can drive the arch support 204 to rotate 90 degrees. At this time, the synchronous plate 205 on the arch support 204 can drive the opening of the laser rangefinder 2051 to face vertically upward, and then the laser range sensor 2052 in the laser rangefinder 2051 can complete the measurement of the distance between the elevator car 400 and the top of the shaft.

[0054] When the arched bracket 204 flips over, the gear shaft 3011 on the synchronous plate 205 drives the drive gear 301 to rotate. At this time, the drive gear 301 rotates from the through hole 3013 into the mounting cavity 1011, so that the drive gear 301 and the guide rack 302 are on the same plane. During this process, the drive gear 301 and the guide rack 302 will not interfere with each other.

[0055] Therefore, when the protrusion 2024 moves to the center of the reversing groove 2033, the flipped drive gear 301 rotates synchronously around the center. Eventually, the drive gear 301 can mesh with the guide rack 302, thereby driving the drive gear 301 to rotate. The drive gear 301 drives the gear shaft 3011 to rotate, and the gear shaft 3011 drives the synchronous plate 205, which is equipped with the laser rangefinder 2051, to rotate, thereby increasing the measurement range and improving the measurement accuracy.

[0056] After the drive gear 301 and guide rack 302 disengage, the laser rangefinder 2051 on the gear shaft 3011 is reset by the coil spring 3012. Later, when the protrusion 2024 slides to the next outer protrusion 2032, the laser rangefinder 2051 rotates again, thereby measuring the distance from the other side of the elevator car 400 to the shaft wall. By repeating the above operation, the distance from the shaft wall to the four sides of the elevator car 400 can be measured alternately, and the distance between the top of the shaft and the top of the elevator car can also be measured, making the measurement simpler.

Claims

1. An elevator installation gap measuring device, comprising an installation unit (100) installed on the top of an elevator car (400), a measuring unit (200) and a displacement unit (300), characterized in that: the installation unit (100) comprises a cover body (101) installed at the center of the top of the elevator car (400), and an installation cavity (1011) is formed in the inside of the cover body (101); the measuring unit (200) comprises a rotating disc (2011) rotationally installed at the center of the installation cavity (1011), a driving motor (2013) is installed at the rotation center of the rotating disc (2011), a pair of connecting plates (201) are installed on the side wall of the rotating disc (2011), a positioning sliding block (2021) is slidably arranged on the pair of connecting plates (201), and a positioning plate (203) is installed in the inside of the installation cavity (1011), four protrusions (2031) are formed on the positioning plate (203), the four protrusions (2031) correspond to the four side walls of the elevator car (400), an outer protruding groove (2033) is formed on each of the four protrusions (2031), a reversing groove (2032) is connected between adjacent outer protruding grooves (2033) and formed on the positioning plate (203), the positioning sliding block (2021) is slidably connected with the corresponding outer protruding groove (2033), an arcuate support (204) is rotationally installed on the connecting plate (201), a synchronous plate (205) is rotationally installed on the side wall of the arcuate support (204), a plurality of pairs of laser range finders (2051) are installed on the synchronous plate (205), a laser ranging sensor (2052) is installed on each of the laser range finders (2051), and a rocker arm (2043) is rotationally installed at the rotation center of the arcuate support (204) and slidably connected with a push rod (2046) installed on the surface of the positioning sliding block (2021); the displacement unit (300) comprises a driving gear (301) and a guide rack (302), a gear shaft (3011) is rotationally installed at the rotation center of the driving gear (301), the gear shaft (3011) is connected with the rotation center of the synchronous plate (205), the guide rack (302) is installed at the bottom of the installation cavity (1011) and corresponds to the reversing groove (2032), the guide rack (302) is adapted to the driving gear (301), and the central angle of the guide rack (302) is smaller than the central angle of the reversing groove (2032).

2. An elevator installation gap measuring device according to claim 1, characterized in that The bottom of the cover body (101) is provided with a pair of vertical plates (1012), and the bottom of the pair of vertical plates (1012) is welded with a mounting plate (1014), the connecting part of the mounting plate (1014) and the vertical plate (1012) is provided with a reinforcing rib (1013), the reinforcing rib (1013) is triangular, the four corners of the mounting plate (1014) are provided with mounting holes (1015), the mounting holes (1015) are internally provided with locking bolts, and the locking bolts are used for connecting the mounting plate (1014) and the elevator car (400).

3. An elevator installation gap measuring device according to claim 1, characterized in that The cover body (102) is installed on the cover body (101), the handle (1021) is installed on the cover body (102), the surface of the handle (1021) is provided with anti-skid grooves, the slide rail (1022) is installed at the bottom of the cover body (102), the slide rail (1022) is slidably arranged in the inner groove (1023) formed in the side wall of the cover body (101), the cover body (102) is provided with a notch (1024), the arc-shaped support (204) is movably penetrated through the notch, and the cover body (102) is connected with the rotating disc (2011).

4. The elevator installation gap measuring device of claim 1, wherein, The driving motor (2013) is fixedly installed on the bottom of the cover body (101), the output end of the driving motor (2013) is provided with a synchronous shaft (2012), the synchronous shaft (2012) is movably penetrated through the cover body (101), the synchronous shaft (2012) is connected with the rotating disc (2011) at the tail end, and the synchronous shaft (2012) is movably penetrated through the fixing block (3021) installed at the tail end of the guide rack (302).

5. The elevator installation gap measuring device of claim 1, wherein, The positioning sliding groove (202) is formed in the connecting plate (201), the positioning sliding groove (202) is slidably connected with the positioning sliding block (2021), the limiting rod (2022) is installed on the positioning sliding groove (202), the limiting rod (2022) is horizontally distributed, the limiting rod (2022) is slidably connected with the positioning sliding block (2021), the limiting spring (2023) is sleeved on the side wall of the limiting rod (2022), one end of the limiting spring (2023) is clamped on the side wall of the positioning sliding groove (202), and the other end is clamped on the side wall of the positioning sliding block (2021).

6. The elevator installation gap measuring device of claim 1, wherein, The positioning sliding block (2021) is fixedly provided with the convex block (2024) at the bottom, the surface of the convex block (2024) is chamfered, the convex block (2024) is slidably connected with the outer convex groove (2033), the outer convex groove (2032) is arc-shaped, the reversing groove (2033) is arc-shaped, and a plurality of pairs of the outer convex groove (2032) and the reversing groove (2033) alternately form a ring groove.

7. The elevator installation gap measuring device of claim 1, wherein, The connecting shaft (2053) is rotatably installed in the arc-shaped support (204), one end of the connecting shaft (2053) is connected with the rotating center of the synchronous plate (205), the other end of the connecting shaft (2053) is connected with the gear shaft (3011), the synchronous plate (205) is in a horizontal state, and the spacing between the plurality of pairs of laser range finders (2051) is the same.

8. The elevator installation gap measuring device of claim 1, wherein, The connecting plate (201) is surface-mounted with a pair of positioning seats (2041), a pair of the positioning seats (2041) are located on both sides of the positioning sliding block (2021), a pair of the positioning seats (2041) are rotatably connected with the positioning shaft (2042) between them, the both ends of the positioning shaft (2042) are respectively connected with the arc-shaped support (204), and the positioning shaft (2042) is connected with the rocker arm (2043).

9. The elevator installation gap measuring device of claim 1, wherein, The rocker arm (2043) is in an inclined state, a strip-shaped groove (2044) is formed in the rocker arm (2043), a slide rod (2045) is slidably arranged in the strip-shaped groove (2044), and the both ends of the slide rod (2045) are connected with push rods (2046), and the push rods (2046) are in an inclined state.

10. The elevator installation gap measuring device of claim 1, wherein, The gear shaft (3011) is provided with a coil spring (3012) at the connecting position with the arc-shaped support (204), and the connecting plate (201) is provided with a through hole (3013) on the surface, and the position of the through hole (3013) corresponds to the position of the driving gear (301).

Images